Alert archive / Montana / River Flood Warnings in 2025

River Flood Warning 1, NWS Missoula, MT

December 11, 2025Lincoln County, Montana

NWS Missoula, MT issued this river flood warning at Dec 11, 2025, 3:29 AM MST for Lincoln County, Montana. It took effect at Dec 11, 2025, 7:04 AM MST. It was in force for 22 hr.

The area

The counties it named.

The facts

Issued: Dec 11, 2025, 3:29 AM MST (10:29 UTC)
In effect from: Dec 11, 2025, 7:04 AM MST
Expired: Dec 12, 2025, 5:25 AM MST
In force: 22 hr
Issued by: NWS Missoula, MT
Area: Storm-based polygon
Flood severity: Minor

County Lincoln County, MT

The radar

The Spokane radar (KOTX), 191 km from the middle of the area, began a volume at 10:33 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.

The river

Written for the forecast point Yaak River near Troy (TRYM8). The gauge peaked at 8.37 ft at Dec 11, 2025, 11:00 AM MST.

Action stage: 7.5 ft
Minor stage: 8 ft
Moderate stage: 9 ft
Major stage: 10 ft

This gauge today: stage, forecast and historic crests

Stage from the USGS instantaneous record for site 12304500, one reading an hour, from a day before the product to a day after it ended. Flood stages are today's.

What forecasters said that day

The local office's own words before this river flood 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 river flood warning went out at Dec 10, 5:33 PM MST, 9 hours 56 minutes earlier.

Area forecast discussion, Dec 10, 5:33 PM MST, 9 hours 56 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
Dec 11, 12:33 AM MST	Areal Flood Advisory	MSO	Lincoln	10 hr
Dec 11, 6:17 AM MST	River Flood Warning	MSO	Lincoln	27 hr
Dec 11, 7:14 AM MST	Areal Flood Warning	MSO	Lincoln	10 hr
Dec 11, 8:09 AM MST	Areal Flood Warning	MSO	Sanders	9 hr
Dec 11, 12:40 PM MST	Winter Weather Advisory	MSO	Flathead, Lake	40 hr

Nearby

River Flood Warnings in Montana, 2025 Every river flood 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; the gauge from the NWS water service and the USGS.