Severe

Significant threat to life or property

Puerto Rico Severe Flash Flood Warning | Effective 10-04-2026 13:30

FFWSJU The National Weather Service in San Juan has issued a * Flash Flood Warning for... Ceiba County in Puerto Rico... Fajardo County in Puerto Rico... * Until 630 PM AST. * At 430 PM AST, Doppler radar indicated thunderstorms producing heavy rain across the warned area. Between 3 and 4 inches of rain have fallen. Additional rainfall amounts of 1 to 2 inches are possible in the warned area. Flash flooding is ongoing or expected to begin shortly.

Puerto Rico Severe Flash Flood Warning | Effective 10/04/2026 13:30

FFWSJU The National Weather Service in San Juan has issued a * Flash Flood Warning for... Ceiba County in Puerto Rico... Fajardo County in Puerto Rico... * Until 630 PM AST. * At 430 PM AST, Doppler radar indicated thunderstorms producing heavy rain across the warned area. Between 3 and 4 inches of rain have fallen. Additional rainfall amounts of 1 to 2 inches are possible in the warned area. Flash flooding is ongoing or expected to begin shortly.

Georgia Severe Flash Flood Warning | Effective 10/04/2026 13:37

FFWJAX The National Weather Service in Jacksonville has issued a * Flash Flood Warning for... South Central Camden County in southeastern Georgia... * Until 600 PM EDT. * At 437 PM EDT, Doppler radar indicated thunderstorms producing heavy rain across the warned area. Between 2.5 and 4 inches of rain have fallen. Additional rainfall amounts of 1 to 3 inches are possible in the warned area. Flash flooding is ongoing or expected to begin shortly. HAZARD...Flash flooding caused by thunderstorms. SOURCE...Radar indicated.

Alabama Severe Flash Flood Warning | Effective 10/04/2026 13:16

FFWMOB The National Weather Service in Mobile has issued a * Flash Flood Warning for... South Central Mobile County in southwestern Alabama... * Until 615 PM CDT. * At 316 PM CDT, Doppler radar indicated heavy rain across the warned area. Between 3 and 5 inches of rain have fallen. Additional rainfall amounts of 2 to 3 inches are possible in the warned area. Flash flooding is ongoing or expected to begin shortly. HAZARD...Flash flooding caused by heavy rain. SOURCE...Radar indicated.

Alabama Severe Flash Flood Warning | Effective 10/04/2026 13:21

FFWBMX The National Weather Service in Birmingham has issued a * Flash Flood Warning for... Southwestern Shelby County in central Alabama... * Until 615 PM CDT. * At 321 PM CDT, Doppler radar indicated thunderstorms producing heavy rain across the warned area. Flash flooding is ongoing or expected to begin shortly. HAZARD...Flash flooding caused by thunderstorms. SOURCE...Radar indicated. IMPACT...Flash flooding of small creeks and streams, urban areas, highways, streets and underpasses as well as other poor

Mississippi Severe Flood Watch | Effective 10/04/2026 13:05

* WHAT...Flooding caused by excessive rainfall continues to be possible. * WHERE...A portion of southern Mississippi, including the following areas, Northern Hancock, Northern Harrison, Northern Jackson, Southern Hancock, Southern Harrison and Southern Jackson. * WHEN...Until midnight CDT tonight. * 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. * ADDITIONAL DETAILS...

Louisiana, Mississippi Severe Flood Watch | Effective 10/04/2026 13:05

* WHAT...Flooding caused by excessive rainfall continues to be possible. * WHERE...Portions of southeast Louisiana, including the following parishes, Central Jefferson, Central Plaquemines, Central St. Charles, Central Tangipahoa, Coastal Jefferson, Eastern Orleans, Lower Plaquemines, Lower St. Bernard, Lower St. Charles, Lower Tangipahoa, Northern St. Tammany, Northern Tangipahoa, Southeast St. Tammany, Southwestern St. Tammany, St. John The Baptist, Upper

Alabama Severe Flash Flood Warning | Effective 10/04/2026 12:30

FFWMOB The National Weather Service in Mobile has issued a * Flash Flood Warning for... Southern Mobile County in southwestern Alabama... * Until 530 PM CDT. * At 230 PM CDT, Doppler radar indicated thunderstorms producing heavy rain across the warned area. Between 2 and 4 inches of rain have fallen. Additional rainfall amounts of 2 to 3 inches are possible in the warned area. Flash flooding is ongoing or expected to begin shortly. HAZARD...Flash flooding caused by thunderstorms. SOURCE...Radar indicated.

California Severe Extreme Heat Warning | Effective 10/04/2026 12:33

* WHAT...Dangerously hot conditions with high temperatures near 110 degrees and overnight lows only getting down to around 85 degrees. This will yield at least major heat risk, impacting anyone without adequate cooling and hydration. * WHERE...Elevations in Death Valley National Park below 2000 feet. * WHEN...Until 8 PM PDT Friday. * IMPACTS...Heat related illnesses increase significantly during extreme heat events. Drink plenty of fluids, stay in an air-conditioned room, stay out of

California Severe Extreme Heat Warning | Effective 10/04/2026 11:32

* WHAT...Dangerously hot conditions with temperatures up to 100 and warm nights with lows in the low to mid 70s. * WHERE...Santa Ana Mountains and Foothills. * WHEN...Until 8 PM PDT Thursday. * 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. Do not leave young children and pets in unattended vehicles. Car interiors will reach lethal temperatures in a matter of minutes.
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