Heat Wave Expands to the East Coast; Flash Flooding Likely in the Central Plains into the Midwest; Severe Thunderstorms in the Northeast

Dangerous, prolonged heat is ongoing in the Mid-South to Mid-Mississippi Valley and heat expands into the Northeast for a brief period today. Widely scattered instances of flash flooding due to heavy rains are forecast from northeast Kansas to much of Indiana. Scattered strong to severe thunderstorms are possible across parts of New England, northern Mid-Atlantic, and North Dakota. Read More >

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Last Map Update: Sat, Jul 26, 2025 at 8:14:16 pm PDT

Watches, Warnings & Advisories

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Red Flag Warning

Thunderstorms/Lightning Today

Thunderstorm Safety

Red Flag Warning Sunday

Isolated to scattered thunderstorms are expected today in portions of northern California and east of the Cascades in Oregon. The main threats will be cloud to ground lightning, hail, and strong gusty outflow winds. Brief heavy downpours are also possible due to slow storm motions, which could cause mudslides/debris flows in recently burned areas. Remember that lightning is deadly - when you hear thunder, seek substantial, covered shelter and remain there until 30 minutes following the last rumble of thunder.

A Red Flag Warning is in effect for abundant lightning on dry fuels for portions of Siskiyou, Klamath/Lake counties. Scattered thunderstorms are expected, and when combined with dry fuels, could lead to several new fire starts. Use extreme caution with any potential ignition sources to avoid starting a fire. Scattered thunderstorms are expected, and when combined with dry fuels, could lead to several new fire starts. Use extreme caution with any potential ignition sources to avoid starting a fire.