Locally Heavy Rainfall for the Carolinas; Thunderstorms and Fire Weather Concerns for Intermountain West

Heavy rainfall from scattered thunderstorms is expected across the Southwest, Intermountain West, and Plains. Isolated dry thunderstorms may initiate additional fires across the west. The coastal Carolinas may experience flash floods in the coming days due to repeated thunderstorms. Additionally, a wave of intense summer heat will hit the Southern Plains and central Gulf Coast States this week. Read More >

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Last Map Update: Tue, Sep 17, 2024 at 9:20:23 am MDT

Watches, Warnings & Advisories

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Flash Flood Watch

High Wind Watch

Hazardous Weather Outlook

Hydrologic Outlook

Gusty Winds on Wednesday

Potential for Significant Rainfall

A strong fall storm will bring beneficial rainfall to Southwest through North Central Montana through the middle of the work week, in addition to gusty west to northwest winds for the day on Wednesday. At this time the strongest winds are favored to occur over the plains of Central and North Central Montana on Wednesday, mainly east of the I-15 corridor where there is a 20-60% chance of wind gusts exceeding 55 mph. If you have loose outdoor items, consider securing them prior to the onset of winds on Wednesday. Travelers should be prepared for strong cross winds, especially those traveling in high profile vehicles.

A strong fall storm has the potential to bring significant rainfall to the Northern Rockies from Tuesday through Thursday morning, with a 10-30%, locally approaching 50% in portions of Chouteau and Judith Basin Counties, chance that rainfall amounts by Thursday morning reach or exceed 3” over the plains of Central and North Central Montana. Local flooding concerns may arise in flood prone areas and in areas near terrain where heavier rain is most persistent. Additionally, saturated soils may limit field access.

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Locally Heavy Rainfall for the Carolinas; Thunderstorms and Fire Weather Concerns for Intermountain West

NWS Forecast Office Great Falls, MT