Significant Coastal Impacts to the Eastern Seaboard; Tropical Storm Nolo to Impact Hawaii

A Nor'easter will bring significant coastal impacts to the Mid-Atlantic and New England through the weekend. Moderate to major coastal flooding, heavy rain, strong winds and high surf expected. Tropical Storm Nolo will continue to strengthen as it moves north toward the Big Island of Hawaii. Heavy rainfall may bring life-threatening, catastrophic flooding and mudslides through the weekend. Read More >

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Last Map Update: Thu, Sep 24, 2026 at 11:06:24 pm MDT

Watches, Warnings & Advisories

National Weather Service Great Falls, MT

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Lake Wind Advisory

Wind Advisory

High Wind Watch

Hazardous Weather Outlook

Lake Wind Advisory Issued

Weather Outlook: Thursday through Sunday

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Harvest Moon

A Lake Wind Advisory has been issued for 8 AM Friday through 9 AM Saturday for Fort Peck Lake. Anticipate wave heights between 3 and 4 feet at times. Boaters on Fort Peck Lake should use extra caution.

Most of our area will experience high temperatures in the low-80s through Friday. After a cold front lifts out of our area Saturday, expect near normal temperatures. The cold front will also bring the slight chance for showers into Friday night and Saturday. On Sunday evening, widespread showers across the region are possible.

The NEXRAD WSR-88D radar located in Glasgow, MT will be down until further notice (Since 09/24) due to equipment failure. During this downtime the NWS will continue to utilize surrounding radars, satellite information, and multi-sensor information for forecast and warning services.

The next full moon occurs on Saturday, September 26th at 10:49 am. It is known as the Harvest Moon as it is the full moon closest to the Autumnal Equinox. Also, known as the Yellow Leaf Moon as leaves on trees start to change color.