Dangerous Heat in the Western U.S.; Heavy Rain and Flooding Potential in the Southern Rockies and Southwest

Widespread high temperatures in the 90s with heat indices exceeding 100 degrees will persist across the western U.S. this weekend into the week. There are fire weather concerns in the Pacific Northwest and the Great Basin. Monsoon conditions continue to linger across the Southern Rockies and Southwest posing a heavy rainfall threat which may lead to additional flash flooding concerns. Read More >

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Last Map Update: Sun, Jul 21, 2024 at 1:06:51 pm PDT

Watches, Warnings & Advisories

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Excessive Heat Warning

Gale Warning

Red Flag Warning

Heat Advisory

Small Craft Advisory

Air Quality Alert

Thunderstorm Risk This Weekend

The risk for thunderstorms and lightning is present this weekend with most areas under a limited to elevated risk later today. Chances increase west of the Cascades this evening and overnight, including along the coast. Areas east of the Cascades will have a risk during this time and into tomorrow afternoon/evening. Impacts from these storms include gusty winds and lightning. Distant lightning is also possible, meaning that lightning can strike outside of the thunderstorm. The area denoted in yellow indicates a 20% chance for thunderstorms, orange indicates a 25-50% chance for thunderstorms, and red indicates a 60% chance for thunderstorms. Thunderstorm chances will continue into Sunday with similar areas at the coast and east of the Cascades with the largest risks.