NOAA/NWS · 实时热榜

* WHAT...Dangerously hot conditions with heat index values up to 108. * WHERE...In Kansas, Linn KS and Miami Counties. In Missouri, Cooper, Howard, Pettis, Saline, Bates, Cass, Henry, and Johnson MO Counties. * WHEN...Until 8 PM CDT Wednesday. * IMPACTS...Heat related illnesses increase significantly during extreme heat and high humidity 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...Flash flooding caused by excessive rainfall continues to be possible. * WHERE...A portion of Southeast Arizona, including the following areas, Baboquivari Mountains, Catalina and Rincon Mountains, South Central Pinal County, Southeast Pinal County, Tohono O'odham Nation, Tucson Metro Area, Upper Santa Cruz River Valley/Altar Valley and Western Pima County. * WHEN...From 2 PM MST this afternoon through 10 PM MST this evening. * IMPACTS...Excessive runoff may result in flooding of rivers, creeks, streams, and other low-lying and flood-prone locations. Flooding may occur in poor drainage and urban areas. Low-water crossings may be flooded. * ADDITIONAL DETAILS... - Scattered to numerous thunderstorms are expected this afternoon into this evening. Rainfall rates in excess of 1 inch per hour are expected with the stronger storms with isolated areas having the potential of 2 inches or more in an hour. - http://www.weather.gov/safety/flood Safety instructions: You should monitor later forecasts and be prepared to take action should Flash Flood Warnings be issued.

* WHAT...Dangerously hot conditions with highs of 110 to 115 in the Las Vegas Valley, Pahrump, Moapa Valley, and the Colorado River Valley, and up to 120 in Death Valley. Warm overnight temperatures will result in little relief overnight. * WHERE...Lake Mohave, Lake Mead, Lower Colorado River Valley / Lake Havasu, Death Valley National Park, Northeast Clark County, Western Clark and Southern Nye County, and Las Vegas Valley. * WHEN...Until 8 PM PDT /8 PM MST/ this evening. * 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. Monitor the latest forecasts and warnings for updates.

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...Strong Gusty Winds...and Dry Thunderstorms with gusty and erratic outflow winds could cause erratic fire behavior. * AFFECTED AREA: In Southwest WY Fire Zones...277...279. In West Central WY Fire Zone....278. * COUNTIES AFFECTED: In Southwest WY...Sweetwater...Uinta. In West Central WY...Lincoln...Sublette. * WIND: West 10 to 20 mph with gusts up to 30 mph. * THUNDERSTORMS: Wind gusts up to 55 mph will be possible from outflows. * HUMIDITY: As low as 15 percent. * TEMPERATURES: Highs in the middle 80s to near 90 degrees. 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...Strong Gusty Winds...and Dry Thunderstorms with gusty and erratic outflow winds could cause erratic fire behavior. * AFFECTED AREA: In Northwest WY...Fire Weather Zone 286. * COUNTIES AFFECTED: In Central WY...Fremont. In North Central WY...Hot Springs...Park. * WIND: West 10 to 20 mph with gusts up to 35 mph. * THUNDERSTORMS: There is a 20 to 30% chance for virga showers/dry thunderstorms between 1500 and 2000. Wind gusts up to 55 mph will be possible from outflows. * HUMIDITY: As low as 15 percent. * TEMPERATURES: Highs in the upper 70s. 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...Strong Gusty Winds...and Dry Thunderstorms with gusty and erratic outflow winds could cause erratic fire behavior. * AFFECTED AREA: In Central WY Fire Zones...283...289. In North Central WY Fire Zone....287. * COUNTIES AFFECTED: In Central WY...Fremont...Natrona. In North Central WY...Hot Springs. In Southwest WY...Sweetwater. * WIND: West 10 to 20 mph with gusts up to 30 mph. * THUNDERSTORMS: Wind gusts up to 55 mph will be possible from outflows. * HUMIDITY: As low as 11 percent. * TEMPERATURES: Highs in the middle 90s; Highs around 90 in zone 287. 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. Afternoon temperatures 107 to 112 with apparent temperatures between 110 and 120 degrees. Major Heat Risk. * WHERE...In Arizona, Parker Valley and Yuma. In California, Chuckwalla Valley, Imperial County West, Imperial Valley, Palo Verde Valley, and Salton Sea. * WHEN...Until 8 PM MST /8 PM PDT/ this evening. * 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.

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...Strong Gusty Winds...and Dry Thunderstorms with gusty and erratic outflow winds could cause erratic fire behavior. * AFFECTED AREA: In Central WY Fire Zones...280...285...300. In North Central WY Fire Zone....281. * COUNTIES AFFECTED: In Central WY...Fremont...Natrona. In North Central WY...Hot Springs...Johnson...Washakie. * WIND: West 10 to 20 mph with gusts up to 30 mph. * THUNDERSTORMS: Will have the best chances in zones 280, 289 and 300. Wind gusts up to 55 mph will be possible from outflows. * HUMIDITY: As low as 10 percent. * TEMPERATURES: Highs in the lower 90s; highs in the 80s in zones 285 and 300. 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.

...RED FLAG WARNING IN EFFECT FROM NOON TODAY TO 9 PM MDT THIS EVENING DUE TO GUSTY WINDS AND LOW RELATIVE HUMIDITY FOR FALL RIVER COUNTY AREA, NORTHERN CAMPBELL, SOUTHERN CAMPBELL, CROOK COUNTY PLAINS, AND WESTON COUNTY PLAINS... The National Weather Service in Rapid City SD has issued a Red Flag Warning. * AFFECTED AREA...Fire Weather Zones 314, 315, 316, 317, and 322. * TIMING...From noon today to 9 PM MDT this evening. * WINDS...Northwest winds 10 to 15 mph with gusts up to 30 mph. * RELATIVE HUMIDITY...Relative Humidity as low as 10%. * IMPACTS...Any fires that develop will 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.

* AFFECTED AREA...Fire Weather Zone 475 East Salmon River Mountains/Salmon NF and Fire Weather Zone 476 Lemhi and Lost River Range/Challis NF. * WIND...West 10 to 20 mph with gusts up to 30 mph. * HUMIDITY...As low as 10 percent. * IMPACTS...Wind reaching these speeds and humidity drier than 15 percent can result in rapid fire spread and extreme wildfire intensity. Safety instructions: A Red Flag Warning means that critical fire weather conditions are either occurring now, or will shortly based on these criteria for Southeastern Idaho: - Relative humidity at or below 15 percent and wind gusts of at least 25 mph in the mountains, or 30 mph in the Snake Plain. - Thunderstorm coverage of 25 percent, without specific rainfall criteria. - Other high impact events deemed critical by the National Weather Service and area fire management agencies.

* AFFECTED AREA...Fire Weather Zone 410 Upper Snake River Valley/Idaho Falls BLM and Fire Weather Zone 425 Middle Snake River Valley/Twin Falls BLM north of the Snake River. * WIND...West 15 to 25 mph with gusts up to 35 mph. * HUMIDITY...As low as 8 percent. * IMPACTS...Wind reaching these speeds and humidity drier than 15 percent can result in rapid fire spread and extreme wildfire intensity. Safety instructions: A Red Flag Warning means that critical fire weather conditions are either occurring now, or will shortly based on these criteria for Southeastern Idaho: - Relative humidity at or below 15 percent and wind gusts of at least 25 mph in the mountains, or 30 mph in the Snake Plain. - Thunderstorm coverage of 25 percent, without specific rainfall criteria. - Other high impact events deemed critical by the National Weather Service and area fire management agencies.

* WHAT...High temperatures up to 108 degrees and Major to locally Extreme Heat Risk. * WHERE...San Joaquin Valley and adjacent foothills, Lake Isabella, and the Kern River Valley. * WHEN...Until 8 PM PDT this evening. * IMPACTS...Hot temperatures and limited overnight relief may cause heat illnesses. 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...High temperatures of 100 to 108 degrees and Major Heat Risk. * WHERE...San Joaquin Valley and adjacent foothills, Lake Isabella, and the Kern River Valley. * WHEN...Until 8 PM PDT this evening. * IMPACTS...Hot temperatures and limited overnight relief may cause heat illnesses. 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...High temperatures up to 105 degrees and Major Heat Risk today. * WHERE...Mariposa-Madera Lower Sierra. Includes Mariposa, North Fork, Oakhurst, Coarsegold, and El Portal. * WHEN...Until 8 PM PDT this evening. * IMPACTS...Hot temperatures and limited overnight relief may cause heat illnesses. 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 Major to Extreme Heat Risk. Highs 106 to 112 degrees. * WHERE...San Joaquin Valley and adjacent foothills, Lake Isabella, and the Kern River Valley. * WHEN...Until 8 PM PDT this evening. * IMPACTS...Heat related illnesses increase significantly during extreme heat events, especially those with little overnight relief from the 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. 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.

The National Weather Service in Cheyenne has issued a Red Flag Warning, which is in effect from noon today to 9 PM MDT this evening. * AFFECTED AREA...Fire weather zones 417 through 427. * WIND...West to northwest at 10 to 20 mph with gusts up to 35 mph. * HUMIDITY...Between 9 and 18 percent. * ADDITIONAL DETAILS...Isolated high-based showers will have the potential to produce gusty and erratic winds along with a few strikes of lightning without much, if any, rainfall during the afternoon and evening hours. * 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 heat index values of 107 to 113 degrees. * WHERE...Perry IL County. * WHEN...Until 8 PM CDT Thursday. * IMPACTS...Heat related illnesses increase significantly during extreme heat and high humidity events. * ADDITIONAL DETAILS...Heat index values will remain elevated near 100 degrees Friday into next weekend. 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...High temperatures up to 110 degrees and Major Heat Risk today and Monday. * WHERE...Mariposa-Madera Lower Sierra. Includes Mariposa, North Fork, Oakhurst, Coarsegold, and El Portal. * WHEN...Until 8 PM PDT Monday. * IMPACTS...Hot temperatures and limited overnight relief may cause heat illnesses. * ADDITIONAL DETAILS...Afternoon high temperatures of 102 to 110 degrees will occur until Monday, with the hottest temperatures expected today and mainly for elevations around 3,000 feet and lower. Overnight lows will generally only fall into the mid 60s to mid 70s with little overnight relief. 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 heat index values up to 111. * WHERE...Portions of south central and southwest Illinois and central and east central Missouri. * WHEN...Until 8 PM CDT Wednesday. * IMPACTS...Heat related illnesses increase significantly during extreme heat and high humidity 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. Young children and pets should never be left unattended in vehicles under any circumstances. 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. 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. People in the Saint Louis Metropolitan Area can get information about cooling centers or energy assistance related to the excessive heat by calling the United Way of Greater Saint Louis at 800-427-4626, or if calling from a land line phone dial 2-1-1. You can also call Cool Down Saint Louis at 314-241-7668.

* WHAT...High temperatures up to 108 degrees and multiple days of Major to locally Extreme Heat Risk. * WHERE...San Joaquin Valley and adjacent foothills, Lake Isabella, and the Kern River Valley. * WHEN...Until 8 PM PDT Monday. * IMPACTS...Hot temperatures and limited overnight relief may cause heat illnesses. * ADDITIONAL DETAILS...Afternoon high temperatures of 102 to 108 degrees will occur through Monday. Overnight lows will generally only fall into the mid 60s to mid 70s with little overnight relief. 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...Flooding caused by excessive rainfall is expected. * WHERE...Northeastern Livingston County in central Illinois... East Central La Salle County in north central Illinois... Southern Grundy County in northeastern Illinois... * WHEN...Until 700 AM CDT. * IMPACTS...Creeks and streams may rise out of their banks. Flooding may occur in poor drainage and urban areas. Slow moving or standing water may continue. High water likely may recede slowly from flooded areas. * ADDITIONAL DETAILS... - At 228 AM CDT, Doppler radar indicated that heavy rainfall had moved out of the area. Rainfall amounts of 2 to 3 inches occurred across the area, with rainfall in excess of 4 inches observed near Dwight. Water will be slow to recede from fields, yards, and poor drainage areas. Some streams may continue to rise due to earlier rainfall as runoff moves downstream. - Some locations that will experience flooding include... Ottawa, Streator, Dwight, Gardner, Mazon, Grand Ridge, South Wilmington, Ransom, Verona, Campus, East Brooklyn and Kinsman. - This includes the headwaters of the Mazon River, Otter Creek, and Covel Creek. - http://www.weather.gov/safety/flood Safety instructions: A Flood Warning means flooding is imminent or may already be occurring. Persons along rivers, creeks, and other waterways should take immediate precautions to protect life and property. Be especially cautious at night when it is harder to recognize the dangers of flooding.

* WHAT...Dangerously hot conditions with heat index values up to 110. * WHERE...Portions of south central and southwest Illinois and central and east central Missouri. * WHEN...Until 8 PM CDT Wednesday. * IMPACTS...Heat related illnesses increase significantly during extreme heat and high humidity 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. Young children and pets should never be left unattended in vehicles under any circumstances. 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. 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. People in the Saint Louis Metropolitan Area can get information about cooling centers or energy assistance related to the excessive heat by calling the United Way of Greater Saint Louis at 800-427-4626, or if calling from a land line phone dial 2-1-1. You can also call Cool Down Saint Louis at 314-241-7668.

* WHAT...Dangerously hot conditions with heat index values up to 108. * WHERE...Portions of southeast Kansas and central, southwest, and west central Missouri. * WHEN...Until 8 PM CDT Wednesday. * IMPACTS...Heat related illnesses increase significantly during extreme heat and high humidity 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.

* WHAT...Flash flooding caused by excessive rainfall continues to be possible. * WHERE...Portions of northern Indiana, including the following areas, Allen IN, De Kalb, Eastern St. Joseph IN, Elkhart, Fulton IN, Huntington, Lagrange, Marshall, Miami, Noble, Northern Kosciusko, Northern La Porte, Pulaski, Southern Kosciusko, Southern La Porte, Starke, Steuben, Wabash, Western St. Joseph IN and Whitley and southwest Michigan, including the following areas, Branch, Cass MI, Northern Berrien, Southern Berrien and St. Joseph MI. * WHEN...Until 11 AM EDT /10 AM CDT/ this morning. * IMPACTS...Excessive runoff may result in flooding of rivers, creeks, streams, and other low-lying and flood-prone locations. Creeks and streams may rise out of their banks. Flooding may occur in poor drainage and urban areas. Low-water crossings may be flooded. * ADDITIONAL DETAILS... - Heavy rainfall occurred in some areas during the evening and early overnight hours. Runoff may continue in these areas along with a chance for additional storms. - http://www.weather.gov/safety/flood Safety instructions: You should monitor later forecasts and be prepared to take action should Flash Flood Warnings be issued.

FFWPSR The National Weather Service in Phoenix has issued a * Flash Flood Warning for... Maricopa County in south central Arizona... * Until 200 AM MST. * At 1053 PM MST, Doppler radar and automated rain gauges indicated thunderstorms producing heavy rain across the warned area. Between 0.5 and 1.5 inches of rain have fallen. Flash flooding is ongoing or expected to begin shortly. HAZARD...Life threatening flash flooding. Thunderstorms producing flash flooding. SOURCE...Radar and automated gauges. IMPACT...Life threatening flash flooding of creeks and streams, urban areas, highways, streets and underpasses. * Some locations that will experience flash flooding include... Mainly rural areas of Maricopa County. This includes US Highway 60 between mile markers 100 and 103...and between mile markers 96 and 99. This includes the following streams and drainages... Flying E Wash, Jimmie Wash, Grass Wash, Star Wash, Mill Wash, Daggs Wash, Red Cloud Wash, Hartman Wash, Cemetery Wash, Jackrabbit Wash, Powerline Wash, Woodchopper Wash, Dead Horse Wash, Sols Wash and Hassayampa River. 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. Be aware of your surroundings and do not drive on flooded roads.

The National Weather Service in Pocatello has issued a Red Flag Warning, which is in effect from 2 PM to 9 PM MDT Monday. * AFFECTED AREA...Fire weather zones 475 and 476. * WIND...West 10 to 20 mph with gusts up to 30 mph. * HUMIDITY...As low as 10 percent. * IMPACTS...Wind reaching these speeds and humidity drier than 15 percent can result in rapid fire spread and extreme wildfire intensity. Safety instructions: A Red Flag Warning means that critical fire weather conditions are either occurring now, or will shortly based on these criteria for Southeastern Idaho: - Relative humidity at or below 15 percent and wind gusts of at least 25 mph in the mountains, or 30 mph in the Snake Plain. - Thunderstorm coverage of 25 percent, without specific rainfall criteria. - Other high impact events deemed critical by the National Weather Service and area fire management agencies.

* WHAT...Dangerously hot conditions with high temperatures of mid 100s to around 112 expected. * WHERE...Coachella Valley, San Diego County Deserts, and San Gorgonio Pass near Banning. * WHEN...Until 8 PM PDT this evening. * 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 heat index values up to 107. * WHERE...In Kansas, Linn KS and Miami Counties. In Missouri, Cooper, Howard, Pettis, Saline, Bates, Cass, Henry, and Johnson MO Counties. * WHEN...Until 8 PM CDT Wednesday. * IMPACTS...Heat related illnesses increase significantly during extreme heat and high humidity 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 HAS ISSUED SEVERE THUNDERSTORM WATCH 547 IN EFFECT UNTIL 7 PM EDT THIS EVENING FOR THE FOLLOWING AREAS THIS WATCH INCLUDES THE FOLLOWING ADJACENT COASTAL WATERS ST JOSEPH TO SOUTH HAVEN MI SOUTH HAVEN TO HOLLAND MI HOLLAND TO GRAND HAVEN MI GRAND HAVEN TO WHITEHALL MI LAKE MICHIGAN FROM GRAND HAVEN TO WHITEHALL MI 5NM OFFSHORE TO MID LAKE LAKE MICHIGAN FROM HOLLAND TO GRAND HAVEN MI 5NM OFFSHORE TO MID LAKE LAKE MICHIGAN FROM SOUTH HAVEN TO HOLLAND MI 5NM OFFSHORE TO MID LAKE LAKE MICHIGAN FROM ST JOSEPH TO SOUTH HAVEN MI 5NM OFFSHORE TO MID LAKE

SEVERE THUNDERSTORM WATCH 550 REMAINS VALID UNTIL 4 AM CDT EARLY THIS MORNING FOR THE FOLLOWING AREAS IN ILLINOIS THIS WATCH INCLUDES 1 COUNTY IN CENTRAL ILLINOIS MCLEAN THIS INCLUDES THE CITIES OF BLOOMINGTON AND NORMAL.

* WHAT...Dangerously hot conditions with multiple days of Major to Extreme Heat Risk. Highs 106 to 112 degrees. * WHERE...San Joaquin Valley and adjacent foothills, Lake Isabella, and the Kern River Valley. * WHEN...Until 8 PM PDT Monday. * 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 to 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.

THE NATIONAL WEATHER SERVICE HAS ISSUED SEVERE THUNDERSTORM WATCH 552 IN EFFECT UNTIL 3 PM EDT THIS AFTERNOON FOR THE FOLLOWING AREAS IN PENNSYLVANIA THIS WATCH INCLUDES 15 COUNTIES IN CENTRAL PENNSYLVANIA BEDFORD BLAIR CAMBRIA CAMERON CENTRE CLEARFIELD CLINTON ELK FULTON HUNTINGDON MCKEAN MIFFLIN POTTER SOMERSET WARREN THIS INCLUDES THE CITIES OF ALTOONA, BEDFORD, BRADFORD, CLEARFIELD, COUDERSPORT, DUBOIS, EMPORIUM, HUNTINGDON, JOHNSTOWN, LEWISTOWN, LOCK HAVEN, MCCONNELLSBURG, MOUNT UNION, RENOVO, RIDGWAY, SOMERSET, ST. MARYS, STATE COLLEGE, AND WARREN.

The National Weather Service in Pocatello has issued a Red Flag Warning, which is in effect from 2 PM to 9 PM MDT Monday. * AFFECTED AREA...Fire weather zones 410 and 425. * WIND...West 15 to 25 mph with gusts up to 35 mph. * HUMIDITY...As low as 8 percent. * IMPACTS...Wind reaching these speeds and humidity drier than 15 percent can result in rapid fire spread and extreme wildfire intensity. Safety instructions: A Red Flag Warning means that critical fire weather conditions are either occurring now, or will shortly based on these criteria for Southeastern Idaho: - Relative humidity at or below 15 percent and wind gusts of at least 25 mph in the mountains, or 30 mph in the Snake Plain. - Thunderstorm coverage of 25 percent, without specific rainfall criteria. - Other high impact events deemed critical by the National Weather Service and area fire management agencies.

SMWCLE The National Weather Service in Cleveland has issued a * Special Marine Warning for... Nearshore and Open waters from Avon Point OH to Geneva-on-the-lake OH... * Until 1000 AM EDT. * At 754 AM EDT, strong thunderstorms were located along a line extending from 27 nm northeast of Kelleys Island to 8 nm north of Lorain Harbor to 6 nm southeast of Huron, moving east at 40 knots. HAZARD...Wind gusts to 40 knots and small hail. SOURCE...Radar. IMPACT...Small craft could be damaged in briefly higher winds and suddenly higher waves. * Locations impacted include... Willowick, Fairport Harbor, Geneva-On-The-Lake, and Cleveland. Safety instructions: Move to safe harbor until hazardous weather passes. Frequent lightning is occurring with these storms. If caught on the open water stay below deck if possible, keep away from ungrounded metal objects.

FFWPSR The National Weather Service in Phoenix has extended the * Flash Flood Warning for... Maricopa County in south central Arizona... Pinal County in southeastern Arizona... * Until 245 AM MST. * At 1229 AM MST, gauge reports indicated thunderstorm runoff continuing to travel downstream within Vekol Wash. A streamflow gauge at I-8 measured a flow of 1100 cfs at 12:10 AM MST and flow was declining. Between 1 and 2 inches of rain have fallen. Flash flooding is ongoing or expected to begin shortly. HAZARD...Life threatening flash flooding. Thunderstorms producing flash flooding. SOURCE...Gauges reported. IMPACT...Life threatening flash flooding of creeks and streams, urban areas, highways, streets and underpasses. * Some locations that will experience flash flooding include... Ak-Chin Indian Community and Freeman. This includes the following streams and drainages... Vekol Wash. 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. Be aware of your surroundings and do not drive on flooded roads. Please report observed flooding to local emergency services or law enforcement and request they pass this information to the National Weather Service when you can do so safely.

FFWPSR The National Weather Service in Phoenix has issued a * Flash Flood Warning for... Maricopa County in south central Arizona... * Until 100 AM MST. * At 956 PM MST, Doppler radar and automated rain gauges indicated thunderstorms producing heavy rain across the warned area. Between 0.75 and 1.5 inches of rain have fallen. Additional rainfall amounts of 0.25 to 1 inch 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... Avondale, Goodyear, Buckeye, Litchfield Park, Perryville and Liberty. This includes the following highways... AZ Route 85 between mile markers 150 and 154. AZ Interstate 10 between mile markers 104 and 113. AZ Route 303 between mile markers 105 and 106. This includes the following streams and drainages... Beardsley Canal, Gila River, Agua Fria River, Jackrabbit Wash and Hassayampa River. 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. Be aware of your surroundings and do not drive on flooded roads.

THE NATIONAL WEATHER SERVICE HAS ISSUED SEVERE THUNDERSTORM WATCH 552 IN EFFECT UNTIL 3 PM EDT THIS AFTERNOON FOR THE FOLLOWING AREAS IN OHIO THIS WATCH INCLUDES 11 COUNTIES IN EAST CENTRAL OHIO BELMONT CARROLL COLUMBIANA COSHOCTON GUERNSEY HARRISON JEFFERSON OH MONROE MUSKINGUM NOBLE TUSCARAWAS IN PENNSYLVANIA THIS WATCH INCLUDES 15 COUNTIES IN NORTHWEST PENNSYLVANIA FOREST MERCER VENANGO IN SOUTHWEST PENNSYLVANIA ALLEGHENY FAYETTE GREENE WASHINGTON WESTMORELAND IN WEST CENTRAL PENNSYLVANIA ARMSTRONG BUTLER CLARION INDIANA JEFFERSON PA IN WESTERN PENNSYLVANIA BEAVER LAWRENCE IN WEST VIRGINIA THIS WATCH INCLUDES 4 COUNTIES IN THE NORTHERN PANHANDLE OF WEST VIRGINIA BROOKE HANCOCK MARSHALL OHIO THIS INCLUDES THE CITIES OF ALIQUIPPA, AMBRIDGE, BEAVER FALLS, BROOKVILLE, BUTLER, CADIZ, CALDWELL, CAMBRIDGE, CANONSBURG, CARROLLTON, CLARION, COLUMBIANA, CONNELLSVILLE, COSHOCTON, DOVER, EAST LIVERPOOL, ELLWOOD CITY, FOLLANSBEE, FORD CITY, FRANKLIN, GREENSBURG, GROVE CITY, HERMITAGE, INDIANA, KITTANNING, LATROBE, MARTINS FERRY, MASONTOWN, MONACA, MOUNDSVILLE, MURRYSVILLE, NEW CASTLE, NEW KENSINGTON, NEW PHILADELPHIA, OIL CITY, PITTSBURGH METRO AREA, PUNXSUTAWNEY, SALEM, SHARON, ST. CLAIRSVILLE, STEUBENVILLE, TIONESTA, UNIONTOWN, WASHINGTON, WAYNESBURG, WEIRTON, WELLSBURG, WHEELING, WOODSFIELD, AND ZANESVILLE.

* WHAT...Dangerously hot conditions with temperatures of 100 to 107 expected. * WHERE...Apple and Lucerne Valleys. * WHEN...Until 8 PM PDT this evening. * 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 HAS ISSUED SEVERE THUNDERSTORM WATCH 546 IN EFFECT UNTIL 2 PM CDT THIS AFTERNOON FOR THE FOLLOWING AREAS IN ILLINOIS THIS WATCH INCLUDES 2 COUNTIES IN NORTHEAST ILLINOIS LAKE IL MCHENRY THIS INCLUDES THE CITIES OF ALGONQUIN, BUFFALO GROVE, CRYSTAL LAKE, GURNEE, MCHENRY, MUNDELEIN, WAUKEGAN, AND WOODSTOCK.

At 420 PM CDT, local law enforcement reported thunderstorms producing heavy rain across the warned area. Several water rescues have been reported. Between 1 and 2 inches of rain have fallen. Additional rainfall amounts of 1 to 2 inches are possible in the warned area. Flash flooding is ongoing. HAZARD...Flash flooding caused by thunderstorms. SOURCE...Law enforcement reported. 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... Birmingham, Hoover, Vestavia Hills, Alabaster, Bessemer, Homewood, Pelham, Mountain Brook, Helena, Irondale, Fairfield, Chelsea, Fultondale, Tarrant, Midfield, Brighton, Indian Springs Village and Lipscomb. 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.

At 1039 PM MST, Doppler radar and automated rain gauges indicated thunderstorms produced heavy rain across the warned area. Between 1 and 2 inches of rain have fallen. A streamflow gauge on Vekol Wash at I-8 was reporting 1800 cfs at 10:30 PM MST. Flash flooding is ongoing or expected to begin shortly. HAZARD...Life threatening flash flooding. Thunderstorms producing flash flooding. SOURCE...Radar and automated gauges. IMPACT...Life threatening flash flooding of creeks and streams, urban areas, highways, streets and underpasses. Some locations that will experience flash flooding include... Ak-Chin Indian Community and Freeman. This includes the following streams and drainages... Vekol Wash. 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. Be aware of your surroundings and do not drive on flooded roads. Please report observed flooding to local emergency services or law enforcement and request they pass this information to the National Weather Service when you can do so safely.

THE NATIONAL WEATHER SERVICE HAS ISSUED SEVERE THUNDERSTORM WATCH 547 IN EFFECT UNTIL 7 PM EDT THIS EVENING FOR THE FOLLOWING AREAS THIS WATCH INCLUDES THE FOLLOWING ADJACENT COASTAL WATERS NEW BUFFALO MI TO ST JOSEPH MI MICHIGAN CITY IN TO NEW BUFFALO MI LAKE MICHIGAN MICHIGAN CITY IN TO ST. JOSEPH MI 5 NM OFFSHORE TO MID-LINE OF LAKE.

At 1100 PM CDT, Doppler radar and automated rain gauges indicated that thunderstorms were moving out of the area and rain rates were decreasing. Up to 3 inches of rain occurred between Lee Center and Ashton due to earlier storms. HAZARD...Flash flooding caused by thunderstorms. SOURCE...Radar and automated gauges. IMPACT...Rapid-onset flooding of creeks, streams, drainage ditches, streets, underpasses, low-lying areas, and other poor drainage areas. Some locations that will experience flash flooding include... Amboy, Franklin Grove, Paw Paw, Lee, Compton, Steward, West Brooklyn and Lee Center. Safety instructions: A Flash Flood Warning means rapid-onset flooding is imminent or may already be occurring. Persons along creeks, drainage ditches, and other waterways should take immediate precautions to protect life and property.

SMWGRR The National Weather Service in Grand Rapids has issued a * Special Marine Warning for... Nearshore and Open Waters from St Joseph to Grand Haven MI... * Until 330 AM EDT. * At 130 AM EDT, a strong thunderstorm capable of producing waterspouts was located 31 nm west of South Haven Light, moving northeast at 25 knots. HAZARD...Waterspouts, wind gusts 34 knots or greater, and small hail. SOURCE...Radar. IMPACT...Waterspouts can easily overturn boats and create locally hazardous seas. Small craft could be damaged in briefly higher winds and suddenly higher waves. * Locations impacted include... Saugatuck Pier Heads, South Haven Light, St. Joseph Light, and St. Joseph. Safety instructions: Move to safe harbor immediately as gusty winds and high waves are expected. Frequent lightning is occurring with this storm. If caught on the open water stay below deck if possible, keep away from ungrounded metal objects.

THE NATIONAL WEATHER SERVICE HAS ISSUED SEVERE THUNDERSTORM WATCH 551 IN EFFECT UNTIL 3 AM MDT /4 AM CDT/ MONDAY FOR THE FOLLOWING AREAS IN COLORADO THIS WATCH INCLUDES 2 COUNTIES IN EAST CENTRAL COLORADO KIT CARSON IN NORTHEAST COLORADO YUMA IN KANSAS THIS WATCH INCLUDES 8 COUNTIES IN NORTHWEST KANSAS CHEYENNE DECATUR GRAHAM NORTON RAWLINS SHERIDAN SHERMAN THOMAS IN NEBRASKA THIS WATCH INCLUDES 3 COUNTIES IN SOUTHWEST NEBRASKA DUNDY HITCHCOCK RED WILLOW THIS INCLUDES THE CITIES OF ATWOOD, BENKELMAN, BIRD CITY, BURLINGTON, COLBY, CULBERTSON, GOODLAND, HILL CITY, HOXIE, MCCOOK, NORTON, OBERLIN, PALISADE, ST. FRANCIS, STRATTON NE, TRENTON, WRAY, AND YUMA.

FFWPSR The National Weather Service in Phoenix has issued a * Flash Flood Warning for... Maricopa County in south central Arizona... Pinal County in southeastern Arizona... * Until 1245 AM MST. * At 843 PM MST, Doppler radar and automated rain gauges indicated thunderstorms producing heavy rain across the warned area. Between 1 and 1.5 inches of rain have fallen. Significant runoff into Vekol Wash is expected or ongoing. Flash flooding is ongoing or expected to begin shortly. HAZARD...Life threatening flash flooding. Thunderstorms producing flash flooding. SOURCE...Radar and automated gauges. IMPACT...Life threatening flash flooding of creeks and streams, urban areas, highways, streets and underpasses. * Some locations that will experience flash flooding include... Freeman. This includes the following streams and drainages... Vekol Wash, Kohatk Wash, Kaka Wash and Waterman Wash. 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. Be aware of your surroundings and do not drive on flooded roads. Please report observed flooding to local emergency services or law enforcement and request they pass this information to the National Weather Service when you can do so safely.

* WHAT...The Heat Advisory has been replaced with an Extreme Heat Warning. High temperatures of 105 to 110 degrees and multiple days of Major Heat Risk. Hottest temperatures expected today. * WHERE...San Joaquin Valley and adjacent foothills, Lake Isabella, and the Kern River Valley. * WHEN...Until 8 PM PDT Monday. * IMPACTS...Hot temperatures and limited overnight relief may cause heat illnesses. * ADDITIONAL DETAILS...Afternoon high temperatures of 105 to 110 degrees will occur until Monday, with the hottest temperatures expected today. Overnight lows will generally only fall into the mid 60s to mid 70s with little overnight relief. 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.

THE NATIONAL WEATHER SERVICE HAS ISSUED SEVERE THUNDERSTORM WATCH 552 IN EFFECT UNTIL 3 PM EDT THIS AFTERNOON FOR THE FOLLOWING AREAS IN OHIO THIS WATCH INCLUDES 5 COUNTIES IN NORTHEAST OHIO ASHTABULA MAHONING PORTAGE STARK TRUMBULL IN PENNSYLVANIA THIS WATCH INCLUDES 2 COUNTIES IN NORTHWEST PENNSYLVANIA CRAWFORD ERIE THIS INCLUDES THE CITIES OF ALLIANCE, ASHTABULA, AURORA, AUSTINTOWN, BOARDMAN, CANTON, CONNEAUT, ERIE, GENEVA, KENT, MASSILLON, MEADVILLE, NILES, RAVENNA, STREETSBORO, TITUSVILLE, WARREN, AND YOUNGSTOWN.

THE NATIONAL WEATHER SERVICE HAS ISSUED SEVERE THUNDERSTORM WATCH 552 IN EFFECT UNTIL 3 PM EDT THIS AFTERNOON FOR THE FOLLOWING AREAS THIS WATCH INCLUDES THE FOLLOWING ADJACENT COASTAL WATERS GENEVA-ON-THE-LAKE TO CONNEAUT OH CONNEAUT OH TO RIPLEY NY

THE NATIONAL WEATHER SERVICE HAS ISSUED SEVERE THUNDERSTORM WATCH 546 IN EFFECT UNTIL 2 PM CDT THIS AFTERNOON FOR THE FOLLOWING AREAS IN WISCONSIN THIS WATCH INCLUDES 12 COUNTIES IN EAST CENTRAL WISCONSIN FOND DU LAC SHEBOYGAN IN SOUTH CENTRAL WISCONSIN ROCK IN SOUTHEAST WISCONSIN DODGE JEFFERSON KENOSHA MILWAUKEE OZAUKEE RACINE WALWORTH WASHINGTON WAUKESHA THIS INCLUDES THE CITIES OF BEAVER DAM, BELOIT, BROOKFIELD, CEDARBURG, DELAVAN, EAST TROY, ELKHORN, FOND DU LAC, FORT ATKINSON, GERMANTOWN, GRAFTON, HARTFORD, HOWARDS GROVE, JANESVILLE, JEFFERSON, KENOSHA, LAKE GENEVA, MAYVILLE, MENOMONEE FALLS, MEQUON, MILWAUKEE, MUSKEGO, NEW BERLIN, OOSTBURG, PLYMOUTH, RACINE, SHEBOYGAN FALLS, WATERTOWN, WAUKESHA, WAUPUN, WEST BEND, AND WHITEWATER.