Expected

Responsive action SHOULD be taken soon (within next hour)

Arizona Severe Extreme Heat Warning | Effective 08/03/2026 12:00

* WHAT...Dangerously hot and humid conditions. Afternoon temperatures 110 to 115. Major to Extreme Heat Risk. * WHERE...The Phoenix metropolitan area. * WHEN...Until 8 PM MST Friday. * IMPACTS...Increase in heat related illnesses, including heat cramps, heat exhaustion, and heat stroke. Heat stroke can lead to death. * ADDITIONAL DETAILS...In Maricopa County, Call 2-1-1 to find a free cooling center, transportation, water and more. https://www.maricopa.gov/heat

Arizona Severe Extreme Heat Warning | Effective 08/03/2026 12:00

* WHAT...Dangerously hot and humid conditions. Afternoon temperatures 96 to 112. Major Heat Risk. * WHERE...Southern Gila County and portions of northern Pinal County and eastern Maricopa County. * WHEN...Until 8 PM MST this evening. * IMPACTS...Increase in heat related illnesses, including heat cramps, heat exhaustion, and heat stroke. Heat stroke can lead to death. An Extreme Heat Warning means that a period of very hot temperatures, even by local standards, will occur. Actions should be taken to

California Severe Extreme Heat Warning | Effective 08/03/2026 12:00

* WHAT...Dangerously hot and humid conditions. Afternoon temperatures 98 to 115. Major Heat Risk. * WHERE...Chuckwalla Mountains, Chocolate Mountains, Chiriaco Summit, and Joshua Tree NP. * WHEN...Until 8 PM PDT Friday. * IMPACTS...Increase in heat related illnesses, including heat cramps, heat exhaustion, and heat stroke. Heat stroke can lead to death. An Extreme Heat Warning means that a period of very hot temperatures, even by local standards, will occur. Actions should be taken to

California Severe Extreme Heat Warning | Effective 08/03/2026 12:00

* WHAT...Dangerously hot and humid conditions. Afternoon temperatures 107 to 118. Major to Extreme Heat Risk. * WHERE...Western and Southern Imperial County, including the Imperial Valley and Salton Sea. * WHEN...Until 8 PM PDT Friday. * IMPACTS...Increase in heat related illnesses, including heat cramps, heat exhaustion, and heat stroke. Heat stroke can lead to death. An Extreme Heat Warning means that a period of very hot temperatures, even by local standards, will occur. Actions should be taken to

New Jersey, Pennsylvania Severe Flood Warning | Effective 08/03/2026 12:09

* WHAT...Urban area and small stream flooding caused by excessive rainfall continues. * WHERE...Portions of New Jersey, including the following counties, Burlington, Camden and Mercer and southeast Pennsylvania, including the following counties, Bucks, Delaware, Montgomery and Philadelphia. * WHEN...Until 515 PM EDT. * IMPACTS...It will take several hours for all the water from these storms to work through local drainage systems in urban areas. * ADDITIONAL DETAILS...

California Severe Extreme Heat Warning | Effective 08/03/2026 11:45

* WHAT...Dangerously hot conditions with high temperatures of 110 to 116 expected. * WHERE...Coachella Valley, San Diego County Deserts, and San Gorgonio Pass near Banning. * WHEN...Until 8 PM PDT Tuesday. * IMPACTS...Heat related illnesses increase significantly during extreme heat events. Drink plenty of fluids, stay in an air-conditioned room, stay out of the sun, and check up on relatives and neighbors.

California Severe Extreme Heat Warning | Effective 08/03/2026 11:45

* WHAT...Dangerously hot conditions with high temperatures in the 90s to near 100 expected. * WHERE...San Diego County Mountains. * WHEN...Until 8 PM PDT this evening. * IMPACTS...Heat related illnesses increase significantly during extreme heat events. Drink plenty of fluids, stay in an air-conditioned room, stay out of the sun, and check up on relatives and neighbors.

California Severe Extreme Heat Warning | Effective 08/03/2026 11:45

* WHAT...Dangerously hot conditions with high temperatures in the mid 90s to 105 expected. * WHERE...San Bernardino and Riverside County Valleys-The Inland Empire. * WHEN...Until 8 PM PDT this evening. * IMPACTS...Heat related illnesses increase significantly during extreme heat events. Drink plenty of fluids, stay in an air-conditioned room, stay out of the sun, and check up on relatives and neighbors.

California Severe Extreme Heat Warning | Effective 08/03/2026 11:45

* WHAT...Dangerously hot conditions with high temperatures in the 90s to near 100 below 7000 feet expected. * WHERE...Riverside County Mountains. * WHEN...Until 8 PM PDT this evening. * IMPACTS...Heat related illnesses increase significantly during extreme heat events. Drink plenty of fluids, stay in an air-conditioned room, stay out of the sun, and check up on relatives and neighbors.

California Severe Extreme Heat Warning | Effective 08/03/2026 11:45

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