Alert archive / Montana / Winter Storm Warnings in 2025

Winter Storm Warning 6, NWS Missoula, MT

March 21, 2025Mineral County, Missoula County, Sanders County, Montana

NWS Missoula, MT issued this winter storm warning at Mar 21, 2025, 2:59 AM MDT for Mineral County, Missoula County, Sanders County, Montana. It took effect at Mar 21, 2025, 6:00 PM MDT. It was in force for 18 hr. No storm report in the archive falls inside the area while it was in force.

The area

The counties it named.

The facts

Issued: Mar 21, 2025, 2:59 AM MDT (08:59 UTC)
In effect from: Mar 21, 2025, 6:00 PM MDT
Expired: Mar 22, 2025, 12:00 PM MDT
In force: 18 hr
Issued by: NWS Missoula, MT

Counties Mineral County, MT, Missoula County, MT, Sanders County, MT

The radar

The Missoula radar (KMSX), 59 km from the middle of the area, began a volume at 09:01 UTC, the scan nearest the moment this went out.

Open the radar archive at this moment

The archived warnings, watches and discussions in force at that minute are drawn over the scan, this one among them.

What forecasters said that day

The local office's own words before this winter storm warning went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.

NWS Missoula, MT wrote its last area forecast discussion before this winter storm warning went out at Mar 20, 1:49 PM MDT, 13 hours 10 minutes earlier.

Area forecast discussion, Mar 20, 1:49 PM MDT, 13 hours 10 minutes before

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The office that day

Everything else NWS Missoula, MT issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Mar 21, 1:16 PM MDT	Wind Advisory	MSO	Deer Lodge, Granite, Powell, Silver Bow	29 hr

Nearby

Winter Storm Warnings in Montana, 2025 Every winter storm warning in 2025

Sources

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; radar from the NEXRAD Level II archive.