Alert archive / Montana / River Flood Warnings in 2023

River Flood Warning 1, NWS Missoula, MT

May 2, 2023Missoula County, Montana

NWS Missoula, MT issued this river flood warning at May 2, 2023, 11:55 AM MDT for Missoula County, Montana. It took effect at May 3, 2023, 5:00 AM MDT. It was in force for 7 days.

The area

The counties it named.

The facts

Issued: May 2, 2023, 11:55 AM MDT (17:55 UTC)
In effect from: May 3, 2023, 5:00 AM MDT
Expired: May 10, 2023, 12:32 PM MDT
In force: 7 days
Issued by: NWS Missoula, MT
Area: Storm-based polygon
Flood severity: Minor

County Missoula County, MT

The radar

The Missoula radar (KMSX), 5 km from the middle of the area, began a volume at 18:00 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 Clark Fork River above Missoula (ABOM8). The gauge peaked at 9.50 ft at May 7, 2023, 5:00 AM MDT.

Action stage: 7 ft
Minor stage: 7.5 ft
Moderate stage: 11 ft
Major stage: 13 ft

This gauge today: stage, forecast and historic crests

Stage from the USGS instantaneous record for site 12340500, 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 May 2, 3:23 AM MDT, 8 hours 32 minutes earlier.

Area forecast discussion, May 2, 3:23 AM MDT, 8 hours 32 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
May 1, 6:47 PM MDT	Special Weather Statement	MSO	Mineral	28 min

Nearby

River Flood Warnings in Montana, 2023 Every river flood warning in 2023

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.