NWS Forecast Office Great Falls, MT

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Last Map Update: Tue, Jun. 19, 2018 at 11:55:30 am MDT


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	Flood Warning

	Flood Advisory

	Flood Watch

	Hazardous Weather Outlook

	Hydrologic Outlook

Tenmile Flooding

Dearborn Flooding

Sun River Flooding

Rainfall Forecast

Periods of rain, moderate at times, is likely to affect the Helena valley through today. As a result, Tenmile Creek as gone flood stage this morning. The creek should crest around 4.8 feet around 8 AM this morning, but additional rises are possible later today. Look for further updates on our Facebook page, Twitter page, and the NWS Great Falls website.

Persistent rainfall over central Montana has caused the Dearborn River gauge site northwest of Craig to go above flood stage. Moderate flooding is expected to affect areas on the north side of the river and agricultural land west of Highway 287. Look for further updates on our Facebook page, Twitter page, and the NWS Great Falls website.

Periods of rain, heavy at times, is likely to affect the Sun River basin through today. As a result, the Sun River will go above flood stage this morning. The river could crest near 9.5 feet on Wednesday. Look for further updates on our Facebook page, Twitter page, and the NWS Great Falls website.

Here is a look at rainfall amounts over the next 24 hours across north-central and southwest Montana. Rain will be moderate to heavy at times, possibly with embedded thunderstorms this afternoon. Localized flooding in poor drainage areas and small streams and creeks continues to be possible.

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