NOAA/NWS · 实时热榜

The National Weather Service in Riverton has issued a Red Flag Warning, which is in effect from noon today to 9 PM MDT this evening. * IMPACTS: Low Humidities...Hot Temperatures...and Strong Gusty Winds could cause erratic fire behavior. * AFFECTED AREA: In Central WY Fire Zone....289. In Southwest WY Fire Zones...277...279. In West Central WY Fire Zone....278. * COUNTIES AFFECTED: In Central WY...Fremont...Natrona. In Southwest WY...Sweetwater...Uinta. In West Central WY...Lincoln...Sublette. * WIND: West 10 to 20 mph with gusts up to 30 mph. * HUMIDITY: As low as 7 percent. * TEMPERATURES: Highs in the 90s. Safety instructions: A Red Flag Warning means that critical fire weather conditions are either occurring now....or will shortly. A combination of strong winds...low relative humidity...and warm temperatures can contribute to extreme fire behavior.

The National Weather Service in Riverton has issued a Red Flag Warning, which is in effect from noon today to 9 PM MDT this evening. * IMPACTS: Low Humidities...Hot Temperatures...and Strong Gusty Winds could cause erratic fire behavior. * AFFECTED AREA: In Central WY...Fire Weather Zone 288. * COUNTIES AFFECTED: In Central WY...Fremont. In West Central WY...Sublette. * WIND: West 15 to 25 mph with gusts up to 35 mph. * HUMIDITY: As low as 9 percent. * TEMPERATURES: Highs in the upper 70s to mid 80s. Safety instructions: A Red Flag Warning means that critical fire weather conditions are either occurring now....or will shortly. A combination of strong winds...low relative humidity...and warm temperatures can contribute to extreme fire behavior.

* WHAT...Dangerously hot conditions expected below 4000 feet, with daytime temperatures ranging from 98 to 105 degrees at Havasupai Gardens, and 110 to 112 degrees at Phantom Ranch. * WHERE...Lower elevations of the Grand Canyon. * WHEN...Until 8 PM MST Saturday. * IMPACTS...Most individuals will be at risk for heat-related illnesses without effective cooling or adequate hydration, especially with prolonged outdoor exposure. Safety instructions: This warning is reserved for only the hottest days of the year and is issued when temperatures are expected to rise to dangerous levels. Day hikers on Bright Angel Trail should descend no farther than 1 1/2 miles from the upper trailhead. Between the hours of 10 AM and 4 PM, hikers should be out of the canyon or at Havasupai Gardens or Bright Angel campgrounds, physical activity is discouraged. All hikers should have adequate gear, including a wide-brimmed hat, sunscreen, salty snacks, sufficient water, and electrolyte mix. Doubling your calorie intake helps maintain your energy. Hike smart.

* WHAT...Dangerously hot conditions, with temperatures around 105 to 110 degrees. * WHERE...Marble and Glen Canyons; including Page. * WHEN...Until 8 PM MST /9 PM MDT/ Saturday. * IMPACTS...Most individuals will be at risk for heat-related illnesses without effective cooling or adequate hydration, especially with prolonged outdoor exposure. Safety instructions: Drink plenty of fluids, stay in an air-conditioned room, stay out of the sun, and check up on relatives and neighbors. Do not leave young children and pets in unattended vehicles. Car interiors will reach lethal temperatures in a matter of minutes. Take action when you see symptoms of heat exhaustion and heat stroke. Anyone overcome by heat should be moved to a cool and shaded location. Heat stroke is an emergency! Call 9 1 1. Stay cool, stay hydrated, stay informed.

* WHAT...Dangerously hot and humid conditions. Afternoon temperatures 107 to 116 degrees. Major Heat Risk. * WHERE...Portions of Maricopa and Northern Pinal counties * WHEN...Until 8 PM MST Sunday. * IMPACTS...Heat related illnesses increase significantly during extreme heat events. Overexposure can cause heat cramps and heat exhaustion to develop and, without intervention, can lead to heat stroke. * ADDITIONAL DETAILS...In Maricopa County, Call 2-1-1 to find a free cooling center, transportation, water and more. https://www.maricopa.gov/heat Safety instructions: An Extreme Heat Warning means that a period of very hot temperatures, even by local standards, will occur. Actions should be taken to lessen the impact of the extreme heat. Take extra precautions if you work or spend time outside. When possible, reschedule strenuous activities to early morning or evening. Know the signs and symptoms of heat exhaustion and heat stroke. Wear lightweight and loose-fitting clothing when possible and drink plenty of water. To reduce risk during outdoor work, the Occupational Safety and Health Administration recommends scheduling frequent rest breaks in shaded or air conditioned environments. Anyone overcome by heat should be moved to a cool and shaded location. Heat stroke is an emergency! Call 9 1 1. Public cooling shelters are available in some areas. Consult county officials for more details.

* WHAT...For the Heat Advisory, high temperatures of 100 to 105 degrees with overnight lows of 64 to 72 degrees. Widespread Major (level 3 out of 4) HeatRisk across lower valleys. For the Extreme Heat Warning, high temperatures of 101 to 106 degrees with overnight lows of 67 to 74 degrees. Widespread Major (level 3 out of 4) HeatRisk and isolated Extreme HeatRisk (level 4 out of 4) in lower valleys. * WHERE...Western Nevada Basin and Range including Pyramid Lake. * WHEN...For the Heat Advisory, until 8 AM PDT this morning. For the Extreme Heat Warning, from 8 AM this morning to 8 AM PDT Monday. * IMPACTS...For the Heat Advisory, heat related illnesses will be more likely, especially for those spending extended periods outdoors, in poorly cooled indoor spaces, or who are sensitive to heat. For the Extreme Heat Warning, heat related illnesses increase significantly, particularly for those working or participating in outdoor activities. Safety instructions: Drink plenty of fluids, stay in an air-conditioned room, stay out of the sun, and check up on relatives and neighbors. To reduce risk during outdoor work, schedule frequent rest breaks in shaded or air conditioned environments. Anyone overcome by heat should be moved to a cool and shaded location. Heat stroke is an emergency!

* WHAT...Dangerously hot and humid conditions. Afternoon temperatures 110 to 117 degrees. Major Heat Risk. * WHERE...Imperial County, including the Imperial Valley and El Centro. * WHEN...Until 8 PM PDT Sunday. * IMPACTS...Heat related illnesses increase significantly during extreme heat events. Overexposure can cause heat cramps and heat exhaustion to develop and, without intervention, can lead to heat stroke. Safety instructions: An Extreme Heat Warning means that a period of very hot temperatures, even by local standards, will occur. Actions should be taken to lessen the impact of the extreme heat. Take extra precautions if you work or spend time outside. When possible, reschedule strenuous activities to early morning or evening. Know the signs and symptoms of heat exhaustion and heat stroke. Wear lightweight and loose-fitting clothing when possible and drink plenty of water. To reduce risk during outdoor work, the Occupational Safety and Health Administration recommends scheduling frequent rest breaks in shaded or air conditioned environments. Anyone overcome by heat should be moved to a cool and shaded location. Heat stroke is an emergency! Call 9 1 1. Public cooling shelters are available in some areas. Consult county officials for more details.

* WHAT...Dangerously hot and humid conditions. Afternoon temperatures 108 to 116 degrees. Major Heat Risk. * WHERE...In Arizona, La Paz and Yuma counties. In California, Palo Verde Valley. * WHEN...Until 8 PM MST /8 PM PDT/ Sunday. * IMPACTS...Heat related illnesses increase significantly during extreme heat events. Overexposure can cause heat cramps and heat exhaustion to develop and, without intervention, can lead to heat stroke. Safety instructions: An Extreme Heat Warning means that a period of very hot temperatures, even by local standards, will occur. Actions should be taken to lessen the impact of the extreme heat. Take extra precautions if you work or spend time outside. When possible, reschedule strenuous activities to early morning or evening. Know the signs and symptoms of heat exhaustion and heat stroke. Wear lightweight and loose-fitting clothing when possible and drink plenty of water. To reduce risk during outdoor work, the Occupational Safety and Health Administration recommends scheduling frequent rest breaks in shaded or air conditioned environments. Anyone overcome by heat should be moved to a cool and shaded location. Heat stroke is an emergency! Call 9 1 1. Public cooling shelters are available in some areas. Consult county officials for more details.

* WHAT...Dangerously hot and humid conditions. Afternoon temperatures 108 to 114 degrees. Major Heat Risk. * WHERE...The Phoenix metropolitan area. * WHEN...Until 8 PM MST Sunday. * IMPACTS...Heat related illnesses increase significantly during extreme heat events. Overexposure can cause heat cramps and heat exhaustion to develop and, without intervention, can lead to heat stroke. * ADDITIONAL DETAILS...In Maricopa County, Call 2-1-1 to find a free cooling center, transportation, water and more. https://www.maricopa.gov/heat Safety instructions: An Extreme Heat Warning means that a period of very hot temperatures, even by local standards, will occur. Actions should be taken to lessen the impact of the extreme heat. Take extra precautions if you work or spend time outside. When possible, reschedule strenuous activities to early morning or evening. Know the signs and symptoms of heat exhaustion and heat stroke. Wear lightweight and loose-fitting clothing when possible and drink plenty of water. To reduce risk during outdoor work, the Occupational Safety and Health Administration recommends scheduling frequent rest breaks in shaded or air conditioned environments. Anyone overcome by heat should be moved to a cool and shaded location. Heat stroke is an emergency! Call 9 1 1. Public cooling shelters are available in some areas. Consult county officials for more details.

* WHAT...Dangerously hot and humid conditions. Afternoon temperatures 98 to 114 degrees. Major Heat Risk. * WHERE...Chuckwalla Mountains, Chiriaco Summit, and Joshua Tree National Park. * WHEN...Until 8 PM PDT Sunday. * IMPACTS...Heat related illnesses increase significantly during extreme heat events. Overexposure can cause heat cramps and heat exhaustion to develop and, without intervention, can lead to heat stroke. Safety instructions: An Extreme Heat Warning means that a period of very hot temperatures, even by local standards, will occur. Actions should be taken to lessen the impact of the extreme heat. Take extra precautions if you work or spend time outside. When possible, reschedule strenuous activities to early morning or evening. Know the signs and symptoms of heat exhaustion and heat stroke. Wear lightweight and loose-fitting clothing when possible and drink plenty of water. To reduce risk during outdoor work, the Occupational Safety and Health Administration recommends scheduling frequent rest breaks in shaded or air conditioned environments. Anyone overcome by heat should be moved to a cool and shaded location. Heat stroke is an emergency! Call 9 1 1. Public cooling shelters are available in some areas. Consult county officials for more details.

* AFFECTED AREA...Fire Weather Zones 222 and 228. * WINDS...East 5 to 15 mph with gusts up to 30 mph. * RELATIVE HUMIDITY...As low as 9 percent. * IMPACTS...Fires will catch and spread quickly. Exercise extreme caution with any outdoor burning. Safety instructions: A Red Flag Warning means that critical fire weather conditions are either occurring now, or will shortly. A combination of strong winds, low relative humidity, and warm temperatures can contribute to extreme fire behavior.

The National Weather Service in Cheyenne has issued a Red Flag Warning, which is in effect from 11 AM to 8 PM MDT Friday. * AFFECTED AREA...Fire weather zone 420. * WIND...West winds from 15 to 25 mph with gusts up to 35 mph. * HUMIDITY...Daytime minimum RH between 5 and 10 percent. * IMPACTS...Any fires that develop will likely spread rapidly. Outdoor burning is not recommended. Safety instructions: A Red Flag Warning means that critical fire weather conditions are either occurring now, or will shortly. A combination of strong winds, low relative humidity, and warm temperatures can contribute to extreme fire behavior.

* WHAT...Dangerously hot conditions with multiple days of Major to Extreme Heat Risk. * WHERE...Indian Wells Valley, Mojave Desert, and Mojave Desert Slopes. * WHEN...Until 8 PM PDT Sunday. * IMPACTS...Heat related illnesses increase significantly during extreme heat events, especially those with little overnight relief from the heat. * ADDITIONAL DETAILS...Dangerously hot conditions with high temperatures up to 112 degrees. Overnight lows will range from 75-80 degrees. Safety instructions: Drink plenty of fluids, stay in an air-conditioned room, stay out of the sun, and check up on relatives and neighbors. Do not leave young children and pets in unattended vehicles. Car interiors will reach lethal temperatures in a matter of minutes. Take extra precautions when outside. Wear lightweight and loose fitting clothing. Try to limit strenuous activities to early morning or evening. Take action when you see symptoms of heat exhaustion and heat stroke. Stay cool, stay hydrated, stay informed. If you do not have air conditioning in your home or lack shelter, seek out resources provided by your local community management.

* WHAT...Dangerously hot conditions with temperatures up to 110 expected, with some locations in the St George area nearing 112. Little overnight relief will occur through Saturday. * WHERE...Glen Canyon Recreation Area/Lake Powell, Lower Washington County, and Zion National Park. * WHEN...Until 9 PM MDT Saturday. * IMPACTS...Heat related illnesses increase significantly during extreme heat events. Safety instructions: Drink plenty of fluids, stay in an air-conditioned room, stay out of the sun, and check up on relatives and neighbors. Do not leave young children and pets in unattended vehicles. Car interiors will reach lethal temperatures in a matter of minutes. Take extra precautions when outside. Wear lightweight and loose fitting clothing. Try to limit strenuous activities to early morning or evening. Take action when you see symptoms of heat exhaustion and heat stroke. To reduce risk during outdoor work, the Occupational Safety and Health Administration recommends scheduling frequent rest breaks in shaded or air conditioned environments. Anyone overcome by heat should be moved to a cool and shaded location. Heat stroke is an emergency! Call 9 1 1.

* WHAT...Dangerously hot conditions with temperatures up to 103 expected with little overnight relief through Sunday. * WHERE...Castle Country, San Rafael Swell, Western Millard and Juab Counties, Great Salt Lake Desert and Mountains, Northern Wasatch Front, Salt Lake Valley, and Tooele and Rush Valleys. * WHEN...From noon Friday to midnight MDT Sunday Night. * IMPACTS...Heat related illnesses increase significantly during extreme heat events. Safety instructions: Drink plenty of fluids, stay in an air-conditioned room, stay out of the sun, and check up on relatives and neighbors. Do not leave young children and pets in unattended vehicles. Car interiors will reach lethal temperatures in a matter of minutes. Take extra precautions when outside. Wear lightweight and loose fitting clothing. Try to limit strenuous activities to early morning or evening. Take action when you see symptoms of heat exhaustion and heat stroke. To reduce risk during outdoor work, the Occupational Safety and Health Administration recommends scheduling frequent rest breaks in shaded or air conditioned environments. Anyone overcome by heat should be moved to a cool and shaded location. Heat stroke is an emergency! Call 9 1 1.

* WHAT...Flooding caused by excessive rainfall is expected. * WHERE...Chase County in east central Kansas... * WHEN...Until 915 AM CDT Friday. * IMPACTS...Flooding of rivers, creeks, streams, and other low-lying and flood-prone locations is imminent or occurring. * ADDITIONAL DETAILS... - At 308 AM CDT, Doppler radar indicated heavy rain has affected Chase County with additional heavy rain likely early this morning. Flooding is ongoing or expected to begin shortly in the warned area. - Some locations that will experience flooding include... Cottonwood Falls, Strong City, Bazaar, Elmdale, Matfield Green, Cedar Point, Tallgrass Prairie, Tallgrass Prairie Preserve, Hymer, Saffordville and Wonsevu. - http://www.weather.gov/safety/flood Safety instructions: Turn around, don't drown when encountering flooded roads. Most flood deaths occur in vehicles.

* WHAT...Dangerously hot conditions with temperatures of 100 to 110 expected. * WHERE...Apple and Lucerne Valleys. * WHEN...Until 8 PM PDT Sunday. * IMPACTS...Heat related illnesses increase significantly during extreme heat events. Safety instructions: Drink plenty of fluids, stay in an air-conditioned room, stay out of the sun, and check up on relatives and neighbors.

* WHAT...Dangerously hot conditions with high temperatures of 108 to 114 expected. * WHERE...Coachella Valley, San Diego County Deserts, and San Gorgonio Pass near Banning. * WHEN...Until 8 PM PDT Sunday. * IMPACTS...Heat related illnesses increase significantly during extreme heat events. Safety instructions: Drink plenty of fluids, stay in an air-conditioned room, stay out of the sun, and check up on relatives and neighbors.

* WHAT...Dangerously hot conditions with temperatures up to 105 expected with little overnight relief through Saturday. * WHERE...Capitol Reef National Park and Vicinity, South Central Utah, and Western Canyonlands. * WHEN...Until 9 PM MDT Saturday. * IMPACTS...Heat related illnesses increase significantly during extreme heat events. Safety instructions: Drink plenty of fluids, stay in an air-conditioned room, stay out of the sun, and check up on relatives and neighbors. Do not leave young children and pets in unattended vehicles. Car interiors will reach lethal temperatures in a matter of minutes. Take extra precautions when outside. Wear lightweight and loose fitting clothing. Try to limit strenuous activities to early morning or evening. Take action when you see symptoms of heat exhaustion and heat stroke. To reduce risk during outdoor work, the Occupational Safety and Health Administration recommends scheduling frequent rest breaks in shaded or air conditioned environments. Anyone overcome by heat should be moved to a cool and shaded location. Heat stroke is an emergency! Call 9 1 1.

FFWRLX The National Weather Service in Charleston has issued a * Flash Flood Warning for... West Central Jackson County in northwestern West Virginia... * Until 615 AM EDT. * At 211 AM EDT, Doppler radar and automated rain gauges indicated thunderstorms producing heavy rain across and upstream of the warned area. Up to 2.5 inches of rain have fallen. Additional rainfall amounts up to 0.5 inches are possible in the warned area. Flash flooding is ongoing or expected to begin shortly. HAZARD...Flash flooding caused by thunderstorms. SOURCE...Radar and automated gauges. IMPACT...Flash flooding of small creeks and streams, urban areas, highways, streets and underpasses as well as other poor drainage and low-lying areas. * Some locations that will experience flash flooding include... Cottageville. This includes Interstate 77 in West Virginia between mile markers 141 and 143. This includes the following streams and drainages... Bullfrog Run, Johns Run, Left Fork Sandy Creek, Cow Run, Crooked Fork, Ohio River, Spring Creek, Sandy Creek and Mill Creek. Safety instructions: Turn around, don't drown when encountering flooded roads. Most flood deaths occur in vehicles. Be especially cautious at night when it is harder to recognize the dangers of flooding. Report flooding to the National Weather Service by calling toll free, 800 401 9535, when you can do so safely.

* WHAT...Small stream flooding caused by excessive rainfall is expected. * WHERE...Central Jackson County in northwestern West Virginia... * WHEN...Until 900 AM EDT. * IMPACTS...Flooding of rivers, creeks, streams, and other low-lying and flood-prone locations is occurring. Expect many areas of slow moving or standing water. It will take several hours for all the water from these storms to work through local drainage systems. * ADDITIONAL DETAILS... - At 343 AM EDT, Doppler radar and automated rain gauges indicated heavy rain due to thunderstorms. Flooding is ongoing or expected to begin shortly in the warned area. Between 2 and 3.5 inches of rain have fallen. - Flooding impacts will continue, but no additional rainfall is expected. - Some locations that will experience flooding include... Ripley and Evans. - This includes Interstate 77 in West Virginia between mile markers 133 and 140. - http://www.weather.gov/safety/flood Safety instructions: Turn around, don't drown when encountering flooded roads. Most flood deaths occur in vehicles. Be especially cautious at night when it is harder to recognize the dangers of flooding. Report flooding to the National Weather Service by calling toll free, 800 401 9535, when you can do so safely.

...BREEZY WESTERLY WINDS AND LOW RELATIVE HUMIDITY TODAY AND SATURDAY THROUGH THE CASCADE GAPS AND INTO THE COLUMBIA BASIN... .Breezy westerly winds through the Cascade gaps will likely (80% chance) overlap with low relative humidity and generate Red Flag conditions this afternoon through Saturday. Poor to fair overnight RH recovery is anticipated Friday night. * AFFECTED AREA...Fire Weather Zones 691 Lower Columbia Basin of Oregon and 691 Lower Columbia Basin of Washington. * TIMING...From 11 AM this morning to 11 PM PDT Saturday. * WINDS...West 10 to 20 mph with gusts up to 30 mph, with strongest winds on Saturday. * RELATIVE HUMIDITY...As low as 11 percent, with lowest humidities today. * IMPACTS...Any fire that develops will catch and spread quickly. Outdoor burning is not recommended. Safety instructions: A Red Flag Warning means that critical fire weather conditions are either occurring now, or will shortly. A combination of strong winds, low relative humidity, and warm temperatures can contribute to extreme fire behavior.

...BREEZY WESTERLY WINDS AND LOW RELATIVE HUMIDITY TODAY AND SATURDAY THROUGH THE CASCADE GAPS AND INTO THE COLUMBIA BASIN... .Breezy westerly winds through the Cascade gaps will likely (80% chance) overlap with low relative humidity and generate Red Flag conditions this afternoon through Saturday. Poor to fair overnight RH recovery is anticipated Friday night. * AFFECTED AREA...Fire Weather Zone 690 Kittitas Valley. * TIMING...From 11 AM this morning to 11 PM PDT Saturday. * WINDS...Northwest 15 to 25 mph with gusts 35 to 40 mph, with the strongest winds on Saturday. * RELATIVE HUMIDITY...As low as 14 percent, with the lowest humidities today. * IMPACTS...Any fire that develops will catch and spread quickly. Outdoor burning is not recommended. Safety instructions: A Red Flag Warning means that critical fire weather conditions are either occurring now, or will shortly. A combination of strong winds, low relative humidity, and warm temperatures can contribute to extreme fire behavior.

...BREEZY WESTERLY WINDS AND LOW RELATIVE HUMIDITY TODAY AND SATURDAY THROUGH THE CASCADE GAPS AND INTO THE COLUMBIA BASIN... .Breezy westerly winds through the Cascade gaps will likely (80% chance) overlap with low relative humidity and generate Red Flag conditions this afternoon through Saturday. Poor to fair overnight RH recovery is anticipated Friday night. * AFFECTED AREA...Fire Weather Zones 701 Eastern Columbia River Gorge of Oregon and 703 Warm Springs Reservation. * TIMING...From 11 AM this morning to 11 PM PDT Saturday. * WINDS...West 10 to 20 mph with gusts up to 30 mph, with the strongest winds on Saturday. * RELATIVE HUMIDITY...As low as 14 percent, with the lowest humidities today. * IMPACTS...Any fire that develops will catch and spread quickly. Outdoor burning is not recommended. Safety instructions: A Red Flag Warning means that critical fire weather conditions are either occurring now, or will shortly. A combination of strong winds, low relative humidity, and warm temperatures can contribute to extreme fire behavior.

* WHAT...High temperatures 100 to 103 degrees in the valleys each afternoon. Low temperatures 60 to 65 degrees in the valleys each night. This will result in a major risk for heat-related illnesses for much of the population, especially those without effective cooling. * WHERE...Humboldt County. * WHEN...For the Heat Advisory, until 6 AM PDT Friday. For the Extreme Heat Warning, from 6 AM to 11 PM PDT Friday. * IMPACTS...Heat related illnesses increase significantly during extreme heat. Safety instructions: Drink plenty of fluids, stay in an air-conditioned room, stay out of the sun, and check up on relatives and neighbors. Do not leave young children and pets in unattended vehicles. Car interiors will reach lethal temperatures in a matter of minutes. Take extra precautions when outside. Wear lightweight and loose fitting clothing. Try to limit strenuous activities to early morning or evening. Take action when you see symptoms of heat exhaustion and heat stroke.

* WHAT...High temperatures 100 to 105 degrees in the valleys each afternoon. Low temperatures 62 to 70 degrees in the valleys each night. This will result in a major risk for heat-related illnesses for much of the population, especially those without effective cooling. * WHERE...Northern Lander and Northern Eureka, Southern Lander and Southern Eureka, Southwest Elko, Northeastern Nye, and Northwestern Nye Counties. * WHEN...For the Heat Advisory, until 6 AM PDT Friday. For the Extreme Heat Warning, from 6 AM Friday to 11 PM PDT Saturday. * IMPACTS...Heat related illnesses increase significantly during extreme heat Safety instructions: Drink plenty of fluids, stay in an air-conditioned room, stay out of the sun, and check up on relatives and neighbors. Do not leave young children and pets in unattended vehicles. Car interiors will reach lethal temperatures in a matter of minutes. Take extra precautions when outside. Wear lightweight and loose fitting clothing. Try to limit strenuous activities to early morning or evening. Take action when you see symptoms of heat exhaustion and heat stroke.

* WHAT...High temperatures 100 to 105 degrees in the valleys each afternoon. Low temperatures 73 to 78 degrees in the valleys each night. This will result in a major risk for heat-related illnesses for much of the population, especially those without effective cooling. * WHERE...South Central Elko and Southeastern Elko Counties. * WHEN...Until 11 PM PDT Sunday. * IMPACTS...Heat-related illnesses increase significantly during extreme heat events. Safety instructions: Take extra precautions when outside. Wear lightweight and loose fitting clothing. Try to limit strenuous activities to early morning or evening. Take action when you see symptoms of heat exhaustion and heat stroke. To reduce risk during outdoor work, the Occupational Safety and Health Administration recommends scheduling frequent rest breaks in shaded or air conditioned environments. Anyone overcome by heat should be moved to a cool and shaded location. Heat stroke is an emergency! Call 9 1 1. Do not leave young children and pets in unattended vehicles. Car interiors will reach lethal temperatures in a matter of minutes. Drink plenty of fluids, remain in an air-conditioned room, stay out of the sun, and check on relatives and neighbors.

...RED FLAG WARNING IN EFFECT FROM 11 AM FRIDAY TO 11 PM PDT SATURDAY DUE TO WIND AND LOW RELATIVE HUMIDITY FOR PALOUSE/HELLS CANYON... ...RED FLAG WARNING IN EFFECT FROM NOON FRIDAY TO 9 PM MDT SATURDAY DUE TO WIND AND LOW RELATIVE HUMIDITY FOR EAST LOLO, BITTERROOT, DEERLODGE/WEST BEAVERHEAD, AND EAST BEAVERHEAD... ...RED FLAG WARNING IN EFFECT FROM NOON TO 9 PM MDT SATURDAY DUE TO WIND AND LOW RELATIVE HUMIDITY FOR WEST LOLO AND FLATHEAD RESERVATION... ... The National Weather Service in Missoula MT has issued a Red Flag Warning in effect from noon Friday to 9 PM MDT Saturday. * AFFECTED AREA...Fire Weather Zones 108 and 109. * TIMING...From noon Friday to 9 PM MDT Saturday. * WINDS...West winds 10 to 15 mph with gusts up to 30 mph. * RELATIVE HUMIDITY...Relative Humidity between 8 to 15 percent. * IMPACTS...Any fires that develop will spread rapidly. Outdoor burning is not recommended. Safety instructions: Please advise the appropriate officials or fire crews in the field of this Red Flag Warning.

...RED FLAG WARNING IN EFFECT FROM 11 AM FRIDAY TO 11 PM PDT SATURDAY DUE TO WIND AND LOW RELATIVE HUMIDITY FOR PALOUSE/HELLS CANYON... ...RED FLAG WARNING IN EFFECT FROM NOON FRIDAY TO 9 PM MDT SATURDAY DUE TO WIND AND LOW RELATIVE HUMIDITY FOR EAST LOLO, BITTERROOT, DEERLODGE/WEST BEAVERHEAD, AND EAST BEAVERHEAD... ...RED FLAG WARNING IN EFFECT FROM NOON TO 9 PM MDT SATURDAY DUE TO WIND AND LOW RELATIVE HUMIDITY FOR WEST LOLO AND FLATHEAD RESERVATION... ... The National Weather Service in Missoula MT has issued a Red Flag Warning in effect from noon Friday to 9 PM MDT Saturday. * AFFECTED AREA...Fire Weather Zones 110 and 111. * TIMING...From noon Friday to 9 PM MDT Saturday. * WINDS...West winds 5 to 15 mph with gusts up to 30 mph. * RELATIVE HUMIDITY...Relative Humidity between 8 to 15 percent. * IMPACTS...Any fires that develop will spread rapidly. Outdoor burning is not recommended. Safety instructions: Please advise the appropriate officials or fire crews in the field of this Red Flag Warning.

A dry cold front will push toward and through the area Friday and Saturday, bringing breezy west to southwesterly winds. Winds will be strongest near the Cascades and Western Columbia Basin. Wind speeds on Friday and Saturday will be similar, though winds on Saturday becoming more widespread in the eastern Columbia Basin. Combined with low afternoon relative humidity values, poor to fair humidity recoveries at night, hot temperatures and dry fuels, this will bring the potential for critical fire weather conditions. * Affected Area: East Washington Central Cascades (Zone 696), East Portion of North Cascades National Park/Lake Chelan National Recreation Area (Zone 697), East Washington North Cascades (Zone 698), Foothills of Northeast Washington (Zone 701), Okanogan Valley (Zone 703), Methow Valley (Zone 704), Foothills of Central Washington Cascades (Zone 705), Waterville Plateau (Zone 706), Western Columbia Basin (Zone 707), Eastern Columbia Basin -Palouse -Spokane Area (Zone 708) and Lower Palouse -Snake River (Zone 709). * Winds: Southwest to west 10 to 20 mph with gusts of 25 to 30 mph. * Relative Humidities: 8 to 20 percent in the valleys and 20 to 30 percent over the higher terrain. * Impacts: Rapid fire spread is possible with any new or ongoing fires. Safety instructions: A Red Flag Warning means that critical fire weather conditions are either occurring now....or will shortly. A combination of strong winds...low relative humidity...and warm temperatures can contribute to extreme fire behavior.

A dry cold front will push toward and through the area Friday and Saturday, bringing breezy west to southwesterly winds. Winds will be strongest near the Cascades and Western Columbia Basin. Wind speeds on Friday and Saturday will be similar, though winds on Saturday becoming more widespread in the eastern Columbia Basin. Combined with low afternoon relative humidity values, poor to fair humidity recoveries at night, hot temperatures and dry fuels, this will bring the potential for critical fire weather conditions. * Affected Area: Colville Reservation (Zone 702). * Winds: Southwest 10 to 20 mph with gusts up to 25 mph. * Relative Humidities: 11 to 19 percent. * Impacts: Rapid fire spread is possible with any new or ongoing fires. Safety instructions: A Fire Weather Watch means that critical fire weather conditions are forecast to occur. Listen for later forecasts and possible Red Flag Warnings.

The National Weather Service in Great Falls has issued a Red Flag Warning for hot temperatures, gusty winds, and low relative humidity, which is in effect from noon Friday to 9 PM MDT Saturday. The Fire Weather Watch is no longer in effect. * AFFECTED AREA...Lincoln Ranger District of the Helena National Forest, Central and Eastern Lewis and Clark National Forest Areas and Helena and Townsend Ranger Districts of the Helena National Forest. * WINDS...West 10 to 15 mph with gusts up to 30 mph. * RELATIVE HUMIDITY...As low as 10 percent. * TEMPERATURES...Afternoon temperatures around 95 degrees. * IMPACTS...Any fires that develop will spread rapidly. Containment of any ongoing or new fires may be very difficult. Outdoor burning is not recommended. Safety instructions: A Red Flag Warning means that critical fire weather conditions are either occurring now, or will shortly. A combination of strong winds, low relative humidity, and warm temperatures can contribute to extreme fire behavior. Please advise the appropriate officials or fire crews in these areas of this Red Flag Warning.

* WHAT...Flooding caused by excessive rainfall is expected. * WHERE...Eastern Marion County in central Kansas... * WHEN...Until 1145 AM CDT. * IMPACTS...Flooding of rivers, creeks, streams, and other low-lying and flood-prone locations is imminent or occurring. Low-water crossings are inundated with water and may not be passable. * ADDITIONAL DETAILS... - At 742 AM CDT, emergency management reported heavy rain in the warned area due to thunderstorms. Flooding is already occurring. Between 2 and 5 inches of rain have fallen. - Additional rainfall amounts up to 1 inch are possible in the warned area. - Some locations that will experience flooding include... Marion, Florence, Burns, Lincolnville, Ramona, Lost Springs and Pilsen. - http://www.weather.gov/safety/flood Safety instructions: Turn around, don't drown when encountering flooded roads. Most flood deaths occur in vehicles. Be aware of your surroundings and do not drive on flooded roads.

...RED FLAG WARNING IN EFFECT FROM 11 AM FRIDAY TO 11 PM PDT SATURDAY DUE TO WIND AND LOW RELATIVE HUMIDITY FOR PALOUSE/HELLS CANYON... ...RED FLAG WARNING IN EFFECT FROM NOON FRIDAY TO 9 PM MDT SATURDAY DUE TO WIND AND LOW RELATIVE HUMIDITY FOR EAST LOLO, BITTERROOT, DEERLODGE/WEST BEAVERHEAD, AND EAST BEAVERHEAD... ...RED FLAG WARNING IN EFFECT FROM NOON TO 9 PM MDT SATURDAY DUE TO WIND AND LOW RELATIVE HUMIDITY FOR WEST LOLO AND FLATHEAD RESERVATION... ... The National Weather Service in Missoula MT has issued a Red Flag Warning in effect from 11 AM Friday to 11 PM PDT Saturday. * AFFECTED AREA...Fire Weather Zone 102. * TIMING...From 11 AM Friday to 11 PM PDT Saturday. * WINDS...West winds 5 to 10 mph with gusts up to 25 mph. * RELATIVE HUMIDITY...Relative Humidity between 8 to 15 percent. * IMPACTS...Any fires that develop will spread rapidly. Outdoor burning is not recommended. Safety instructions: Please advise the appropriate officials or fire crews in the field of this Red Flag Warning.

...RED FLAG WARNING IN EFFECT FROM 11 AM FRIDAY TO 11 PM PDT SATURDAY DUE TO WIND AND LOW RELATIVE HUMIDITY FOR PALOUSE/HELLS CANYON... ...RED FLAG WARNING IN EFFECT FROM NOON FRIDAY TO 9 PM MDT SATURDAY DUE TO WIND AND LOW RELATIVE HUMIDITY FOR EAST LOLO, BITTERROOT, DEERLODGE/WEST BEAVERHEAD, AND EAST BEAVERHEAD... ...RED FLAG WARNING IN EFFECT FROM NOON TO 9 PM MDT SATURDAY DUE TO WIND AND LOW RELATIVE HUMIDITY FOR WEST LOLO AND FLATHEAD RESERVATION... ... The National Weather Service in Missoula MT has issued a Red Flag Warning in effect from noon to 9 PM MDT Saturday. * AFFECTED AREA...Fire Weather Zones 106 and 107. * TIMING...From noon to 9 PM MDT Saturday. * WINDS...West winds 10 to 15 mph with gusts up to 25 mph. * RELATIVE HUMIDITY...Relative Humidity between 10 to 17 percent. * IMPACTS...Any fires that develop will spread rapidly. Outdoor burning is not recommended. Safety instructions: Please advise the appropriate officials or fire crews in the field of this Red Flag Warning.

...The Flood Warning is extended for the following rivers in Missouri... Petite Saline Creek near Boonville affecting Cooper County. * WHAT...Minor flooding is occurring and minor flooding is forecast. * WHERE...Petite Saline Creek near Boonville. * WHEN...Until late Friday night. * IMPACTS...At 16.0 feet, Low lying woodlands and fields near the creek flood. At 19.5 feet, The creek floods U Highway about 4 miles southeast of Boonville. * ADDITIONAL DETAILS... - At 9:30 PM CDT Thursday the stage was 18.6 feet. - Forecast...The river is expected to rise to a crest of 19.4 feet tomorrow morning. It will then fall below flood stage tomorrow afternoon. - Flood stage is 16.0 feet. - http://www.weather.gov/safety/flood Safety instructions: Turn around, don't drown when encountering flooded roads. Most flood deaths occur in vehicles. This product along with additional weather and stream information is available at www.weather.gov/kc/.

THE NATIONAL WEATHER SERVICE HAS ISSUED SEVERE THUNDERSTORM WATCH 539 IN EFFECT UNTIL 3 AM MDT FRIDAY FOR THE FOLLOWING AREAS IN COLORADO THIS WATCH INCLUDES 1 COUNTY IN SOUTHEAST COLORADO BACA THIS INCLUDES THE CITIES OF SPRINGFIELD AND WALSH.

THE NATIONAL WEATHER SERVICE HAS ISSUED SEVERE THUNDERSTORM WATCH 539 IN EFFECT UNTIL 4 AM CDT FRIDAY FOR THE FOLLOWING AREAS IN KANSAS THIS WATCH INCLUDES 10 COUNTIES IN SOUTHWEST KANSAS CLARK FORD GRANT GRAY HASKELL MEADE MORTON SEWARD STANTON STEVENS THIS INCLUDES THE CITIES OF ASHLAND, CIMARRON, DODGE CITY, ELKHART, FOWLER, HUGOTON, JOHNSON CITY, LIBERAL, MEADE, MINNEOLA, MONTEZUMA, PLAINS CITY, SATANTA, SUBLETTE, AND ULYSSES.

THE NATIONAL WEATHER SERVICE HAS ISSUED SEVERE THUNDERSTORM WATCH 539 IN EFFECT UNTIL 4 AM CDT FRIDAY FOR THE FOLLOWING AREAS IN OKLAHOMA THIS WATCH INCLUDES 3 COUNTIES IN THE PANHANDLE OF OKLAHOMA BEAVER CIMARRON TEXAS IN TEXAS THIS WATCH INCLUDES 10 COUNTIES IN THE PANHANDLE OF TEXAS DALLAM HANSFORD HARTLEY HEMPHILL HUTCHINSON LIPSCOMB MOORE OCHILTREE ROBERTS SHERMAN THIS INCLUDES THE CITIES OF BEAVER, BOISE CITY, BOOKER, BORGER, CANADIAN, CHANNING, CODMAN, CONLEN, DALHART, DUMAS, FARNSWORTH, FOLLETT, FORGAN, FOUR WAY, GLAZIER, GRUVER, GUYMON, HARTLEY, HIGGINS, KEYES, LAKE MARVIN, LORA, MASTERSON, MIAMI, PERRYTON, ROMERO, SPEARMAN, STRATFORD, WAKA, WARE, AND WOLF CREEK PARK.

* WHAT...Dangerously hot conditions with temperatures of 100 to 109 expected. * WHERE...Apple and Lucerne Valleys. * WHEN...Until 8 PM PDT Sunday. * IMPACTS...Heat related illnesses increase significantly during extreme heat events. Safety instructions: Drink plenty of fluids, stay in an air-conditioned room, stay out of the sun, and check up on relatives and neighbors.

* WHAT...Flooding caused by excessive rainfall continues. * WHERE...Chase County in east central Kansas... * WHEN...Until 1115 AM CDT. * IMPACTS...Flooding of rivers, creeks, streams, and other low-lying and flood-prone locations is imminent or occurring. Low-water crossings are inundated with water and may not be passable. * ADDITIONAL DETAILS... - At 746 AM CDT, Doppler radar indicated heavy rain due to thunderstorms. Flooding is ongoing or expected to begin shortly in the warned area. Between 2 and 5 inches of rain have fallen. - Additional rainfall amounts up to 1 inch are possible in the warned area. - Some locations that will experience flooding include... Cottonwood Falls, Strong City, Bazaar, Elmdale, Matfield Green, Cedar Point, Tallgrass Prairie, Tallgrass Prairie Preserve, Hymer, Saffordville and Wonsevu. - http://www.weather.gov/safety/flood Safety instructions: Turn around, don't drown when encountering flooded roads. Most flood deaths occur in vehicles. Be aware of your surroundings and do not drive on flooded roads.

* AFFECTED AREA...Fire Weather Zones 222 and 228. * WINDS...East 10 to 15 mph with gusts up to 30 mph. * RELATIVE HUMIDITY...As low as 10 percent. * IMPACTS...Fires will catch and spread quickly. Exercise extreme caution with any outdoor burning. Safety instructions: A Red Flag Warning means that critical fire weather conditions are either occurring now, or will shortly. A combination of strong winds, low relative humidity, and warm temperatures can contribute to extreme fire behavior.

* WHAT...Dangerously hot conditions with high temperatures of 108 to 114 expected. * WHERE...Coachella Valley, San Diego County Deserts, and San Gorgonio Pass near Banning. * WHEN...Until 8 PM PDT Sunday. * IMPACTS...Heat related illnesses increase significantly during extreme heat events. Safety instructions: Drink plenty of fluids, stay in an air-conditioned room, stay out of the sun, and check up on relatives and neighbors.

The National Weather Service in Billings has issued a Fire Weather Watch...which is in effect from Saturday morning through Saturday evening. * IMPACTS: Low humidities, hot temperatures, and strong gusty winds will create erratic fire behavior and new fire starts. * AFFECTED AREA: In Southeast MT Fire Zone...132. In Southeast MT and Northwest SD Fire Zone...133. * COUNTIES AFFECTED: In Northwest SD...Harding. In Southeast MT...Carter...Custer...Fallon. * WIND: East 5 to 15 mph with gusts up to 30 mph. * HUMIDITY: As low as 8 percent. * TEMPERATURES: Up to 97. Safety instructions: A Fire Weather Watch means that critical fire weather conditions are forecast to occur. Listen for later forecasts and possible Red Flag Warnings.

* IMPACTS: Low humidities, hot temperatures, and strong gusty winds will create erratic fire behavior and new fire starts. * AFFECTED AREA: In North Central WY Fire Zones...274...284. In South Central MT Fire Zones...123...124...125...126...127 128...129. In Southeast MT Fire Zones...130...131. * COUNTIES AFFECTED: In Central MT...Golden Valley...Musselshell...Wheatland. In North Central WY...Big Horn...Johnson...Sheridan...Washakie. In South Central MT...Big Horn...Carbon...Park...Stillwater Sweet Grass...Yellowstone. In Southeast MT...Powder River...Rosebud...Treasure. In Southwest MT...Gallatin. * WIND: Northwest 5 to 15 mph with gusts up to 30 mph. * HUMIDITY: As low as 11 percent. * TEMPERATURES: Up to 100. Safety instructions: A Fire Weather Watch means that critical fire weather conditions are forecast to occur. Listen for later forecasts and possible Red Flag Warnings.

* WHAT...Dangerously hot conditions with multiple days of Major to Extreme Heat Risk. * WHERE...Indian Wells Valley, Mojave Desert, and Mojave Desert Slopes. * WHEN...Until 8 PM PDT Sunday. * IMPACTS...Heat related illnesses increase significantly during extreme heat events, especially those with little overnight relief from the heat. * ADDITIONAL DETAILS...Dangerously hot conditions with high temperatures up to 112 degrees. Overnight lows will range from 75-80 degrees. Safety instructions: Drink plenty of fluids, stay in an air-conditioned room, stay out of the sun, and check up on relatives and neighbors. Do not leave young children and pets in unattended vehicles. Car interiors will reach lethal temperatures in a matter of minutes. Take extra precautions when outside. Wear lightweight and loose fitting clothing. Try to limit strenuous activities to early morning or evening. Take action when you see symptoms of heat exhaustion and heat stroke. Stay cool, stay hydrated, stay informed. If you do not have air conditioning in your home or lack shelter, seek out resources provided by your local community management.

* WHAT...Dangerously hot conditions with temperatures up to 110 expected, with some locations in the St George area nearing 112. Little overnight relief will occur through Saturday. * WHERE...Glen Canyon Recreation Area/Lake Powell, Lower Washington County, and Zion National Park. * WHEN...From noon today to 9 PM MDT Saturday. * IMPACTS...Heat related illnesses increase significantly during extreme heat events. Safety instructions: Drink plenty of fluids, stay in an air-conditioned room, stay out of the sun, and check up on relatives and neighbors. Do not leave young children and pets in unattended vehicles. Car interiors will reach lethal temperatures in a matter of minutes. Take extra precautions when outside. Wear lightweight and loose fitting clothing. Try to limit strenuous activities to early morning or evening. Take action when you see symptoms of heat exhaustion and heat stroke. To reduce risk during outdoor work, the Occupational Safety and Health Administration recommends scheduling frequent rest breaks in shaded or air conditioned environments. Anyone overcome by heat should be moved to a cool and shaded location. Heat stroke is an emergency! Call 9 1 1.

* WHAT...Dangerously hot conditions with temperatures up to 105 expected with little overnight relief through Saturday. * WHERE...Capitol Reef National Park and Vicinity, South Central Utah, and Western Canyonlands. * WHEN...From noon today to 9 PM MDT Saturday. * IMPACTS...Heat related illnesses increase significantly during extreme heat events. Safety instructions: Drink plenty of fluids, stay in an air-conditioned room, stay out of the sun, and check up on relatives and neighbors. Do not leave young children and pets in unattended vehicles. Car interiors will reach lethal temperatures in a matter of minutes. Take extra precautions when outside. Wear lightweight and loose fitting clothing. Try to limit strenuous activities to early morning or evening. Take action when you see symptoms of heat exhaustion and heat stroke. To reduce risk during outdoor work, the Occupational Safety and Health Administration recommends scheduling frequent rest breaks in shaded or air conditioned environments. Anyone overcome by heat should be moved to a cool and shaded location. Heat stroke is an emergency! Call 9 1 1.

* WHAT...Dangerously hot conditions with temperatures up to 103 expected with little overnight relief through Sunday. * WHERE...Castle Country, San Rafael Swell, Western Millard and Juab Counties, Great Salt Lake Desert and Mountains, Northern Wasatch Front, Salt Lake Valley, and Tooele and Rush Valleys. * WHEN...From noon Friday to midnight MDT Sunday Night. * IMPACTS...Heat related illnesses increase significantly during extreme heat events. Safety instructions: Drink plenty of fluids, stay in an air-conditioned room, stay out of the sun, and check up on relatives and neighbors. Do not leave young children and pets in unattended vehicles. Car interiors will reach lethal temperatures in a matter of minutes. Take extra precautions when outside. Wear lightweight and loose fitting clothing. Try to limit strenuous activities to early morning or evening. Take action when you see symptoms of heat exhaustion and heat stroke. To reduce risk during outdoor work, the Occupational Safety and Health Administration recommends scheduling frequent rest breaks in shaded or air conditioned environments. Anyone overcome by heat should be moved to a cool and shaded location. Heat stroke is an emergency! Call 9 1 1.

...RED FLAG WARNING WILL EXPIRE AT 8 PM MDT THIS EVENING FOR GUSTY WINDS, LOW HUMIDITY, AND POOR OVERNIGHT RECOVERIES FOR FIRE WEATHER ZONES 421, 422, 425, 426, AND 427... The National Weather Service in Cheyenne has issued a Red Flag Warning, which is in effect from 11 AM to 8 PM MDT Friday. * AFFECTED AREA...Fire weather zones 421, 422, 425, 426, and 427... * WIND...West to northwest winds from 15 to 25 mph with gusts up to 35 mph. * HUMIDITY...Daytime minimum RH between 5 and 10 percent. Recoveries tonight from 15 to 30 percent. * IMPACTS...Any fires that develop will likely spread rapidly. Outdoor burning is not recommended. Safety instructions: A Red Flag Warning means that critical fire weather conditions are either occurring now, or will shortly. A combination of strong winds, low relative humidity, and warm temperatures can contribute to extreme fire behavior.