Heavy Rain and Thunderstorms in the Plains; Snow in the Northern Rockies; Heavy Rain in Guam

A storm system moving over the Rockies today will bring marginal risks for excessive rainfall and severe thunderstorms from parts of New Mexico into western South Dakota. Heavy snow expected from northwestern Wyoming into southern Montana. Ongoing heavy showers and thunderstorms from Invest 96W could result in localized flash flooding, particularly in central or southern Guam early this morning. Read More >

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Last Map Update: Wed, Oct 15, 2025 at 9:18:14 am PDT

Watches, Warnings & Advisories

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National Weather Service Salt Lake City, UT

National Weather Service San Joaquin Valley, CA

National Weather Service NWS Flagstaff, AZ

Flash Flood Warning

Winter Storm Warning

Freeze Warning

Winter Storm Warning

Projected Precipitation

Precipitation Amount Chances

Unseasonably Cool

A Winter Storm Warning is in effect for the Ruby Mountains and East Humboldt Range until 5 AM PDT Thursday morning. The majority of snow will fall this afternoon. Winds will gust as high as 50 mph on exposed ridgetops and near the crest. Snow covered roads are expected on State Route 229 through Secret Pass, up into Lamoille Canyon, and across Harrison Pass in the southern end of the Ruby Mountains. If you plan to travel, consider alternate strategies.

A storm system will impact Northern and Central Nevada this afternoon and tonight, resulting in periods of precipitation. Snow levels will start at around 6,000 feet, before rising to about 7,000 feet this afternoon. The majority of this precipitation will fall this afternoon.

High temperatures throughout Northern and Central Nevada this afternoon will be sixteen to eighteen degrees below normal for this time of year. Maximum temperatures across Northern and Central Nevada Thursday afternoon will be around ten degrees below seasonal values.