Alert archive / Montana / River Flood Warnings in 2022

River Flood Warning 1, NWS Great Falls, MT

June 12, 2022Gallatin County, Montana

NWS Great Falls, MT issued this river flood warning at Jun 12, 2022, 9:58 AM MDT for Gallatin County, Montana. It took effect at Jun 12, 2022, 6:00 PM MDT. It was in force for 40 hr.

The area

The counties it named.

The facts

Issued
Jun 12, 2022, 9:58 AM MDT (15:58 UTC)
In effect from
Jun 12, 2022, 6:00 PM MDT
Expired
Jun 14, 2022, 9:52 AM MDT
In force
40 hr
Issued by
NWS Great Falls, MT
Area
Storm-based polygon
Flood severity
Minor

County Gallatin County, MT

The radar

The Billings radar (KBLX), 202 km from the middle of the area, began a volume at 16:00 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 Gallatin River near Gallatin Gateway (GLGM8). The gauge peaked at 6.69 ft at Jun 13, 2022, 5:00 PM MDT.

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Action stage
5 ft
Minor stage
6 ft
Moderate stage
7 ft
Major stage
7.5 ft

This gauge today: stage, forecast and historic crests

Stage from the USGS instantaneous record for site 06043500, one reading an hour, from a day before the product to a day after it ended. Flood stages are today's.

The office that day

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

IssuedProductOfficeCountiesLasted
Jun 12, 2:40 AM MDTHigh Wind WatchTFX12 hr
Jun 12, 2:58 AM MDTWinter Storm WarningTFX3 days
Jun 12, 9:58 AM MDTRiver Flood WarningTFXGallatin72 hr
Jun 12, 10:07 AM MDTFlood WatchTFX72 hr
Jun 12, 2:47 PM MDTWinter Weather AdvisoryTFX66 hr
Jun 12, 2:50 PM MDTHigh Wind WatchTFX12 hr
Jun 12, 2:50 PM MDTHigh Wind WarningTFX3 days

Nearby

River Flood Warnings in Montana, 2022Every 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.