Areas of Excessive Rainfall and Extreme Heat; Monitoring Tropical Storm Erin

Heavy to excessive rainfall over the southern Appalachians may bring areas of flooding Tuesday. Hot to extremely hot temperatures are in place through Tuesday across much of the western U.S. and northern New England. Tropical Storm Erin is forecast to become a Major Hurricane by this weekend as it moves across the central Atlantic Ocean. Monitor future forecasts for any East Coast impacts. Read More >

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Last Map Update: Tue, Aug 12, 2025 at 4:24:14 am PDT

Watches, Warnings & Advisories

National Weather Service Salt Lake City, UT

National Weather Service San Joaquin Valley, CA

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National Weather Service NWS Flagstaff, AZ

National Weather Service Los Angeles, CA

Extreme Heat Warning

Heat Advisory

Beach Hazards Statement

Extreme Heat Warning

Heat Advisory

Heat Headlines

Extreme Heat - then Relief

Extreme Heat Warnings in effect for portions of southeastern California, southern Nevada, and northwestern Arizona on Monday and Tuesday, with temperatures ranging 5 to 8 degrees above seasonal normals.

Heat Advisories in effect for the southern Great Basin, Owens Valley, northern Mohave County, and the mountains of Clark County on Tuesday, with temperatures ranging 5 to 8 degrees above seasonal normals.

Extreme Heat Warnings and Heat Advisories in effect Monday and Tuesday across southeastern California, southern Nevada, and northwestern Arizona.

Extreme Heat Warnings and Heat Advisories across the forecast area today and Tuesday before temperatures decrease and moisture pushes into our eastern zones heading into the weekend.