Alert archive / Montana / River Flood Warnings in 2022

River Flood Warning 6, NWS Missoula, MT

June 12, 2022Flathead County, Montana

NWS Missoula, MT issued this river flood warning at Jun 12, 2022, 4:08 PM MDT for Flathead County, Montana. It took effect at Jun 13, 2022, 9:00 AM MDT. It was in force for 13 days.

The area

The counties it named.

The facts

Issued: Jun 12, 2022, 4:08 PM MDT (22:08 UTC)
In effect from: Jun 13, 2022, 9:00 AM MDT
Expired: Jun 26, 2022, 6:21 PM MDT
In force: 13 days
Issued by: NWS Missoula, MT
Area: Storm-based polygon
Flood severity: Minor

County Flathead County, MT

The radar

The Missoula radar (KMSX), 140 km from the middle of the area, began a volume at 22:09 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 Flathead River at Columbia Falls (CFMM8).

Action stage: 12.5 ft
Minor stage: 13 ft
Moderate stage: 18 ft
Major stage: 22 ft

This gauge today: stage, forecast and historic crests

Stage from the USGS instantaneous record for site 12363000, 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 Jun 12, 2:52 PM MDT, 1 hour 16 minutes earlier.

Area forecast discussion, Jun 12, 2:52 PM MDT, 1 hour 16 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
Jun 11, 9:04 PM MDT	River Flood Warning	MSO	Missoula	40 hr
Jun 11, 9:11 PM MDT	River Flood Warning	MSO	Missoula	40 hr
Jun 11, 9:36 PM MDT	River Flood Warning	MSO	Ravalli	40 hr
Jun 12, 2:39 PM MDT	Winter Storm Warning	MSO	Flathead, Lake	63 hr
Jun 12, 2:39 PM MDT	Winter Weather Advisory	MSO	Flathead, Granite, Lake, Lincoln, Missoula, Powell and 1 more	63 hr

Nearby

River Flood Warnings in Montana, 2022 Every river flood warning in 2022

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.