Alert archive / Montana / Winter Storm Warnings in 2023

Winter Storm Warning 10, NWS Great Falls, MT

April 11, 202314 counties in Montana

NWS Great Falls, MT issued this winter storm warning at Apr 11, 2023, 2:29 PM MDT for 14 counties in Montana. It took effect at Apr 12, 2023, 6:00 PM MDT. It was in force for 30 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: Apr 11, 2023, 2:29 PM MDT (20:29 UTC)
In effect from: Apr 12, 2023, 6:00 PM MDT
Expired: Apr 14, 2023, 12:00 AM MDT
In force: 30 hr
Issued by: NWS Great Falls, MT

Counties Beaverhead County, MT, Blaine County, MT, Broadwater County, MT, Cascade County, MT, Chouteau County, MT, Fergus County, MT, Gallatin County, MT, Hill County, MT, Jefferson County, MT, Judith Basin County, MT, Lewis and Clark County, MT, Madison County, MT, Meagher County, MT, Teton County, MT

The radar

The Great Falls radar (KTFX), 66 km from the middle of the area, began a volume at 20:30 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 Great Falls, MT wrote its last area forecast discussion before this winter storm warning went out at Apr 10, 5:10 PM MDT, 21 hours 19 minutes earlier.

Area forecast discussion, Apr 10, 5:10 PM MDT, 21 hours 19 minutes before

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The office that day

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

Issued	Product	Office	Counties	Lasted
Apr 10, 6:24 PM MDT	Areal Flood Advisory	TFX	Gallatin	21 hr
Apr 10, 7:08 PM MDT	Areal Flood Advisory	TFX	Hill, Liberty	20 hr
Apr 11, 2:08 AM MDT	River Flood Warning	TFX	Blaine	10 days
Apr 11, 2:29 PM MDT	Winter Weather Advisory	TFX	Beaverhead, Blaine, Broadwater, Cascade, Chouteau, Fergus and 9 more	58 hr
Apr 11, 3:15 PM MDT	Areal Flood Advisory	TFX	Blaine, Chouteau, Hill, Liberty	70 hr
Apr 11, 3:30 PM MDT	Areal Flood Advisory	TFX	Gallatin, Meagher	24 hr

Nearby

Winter Storm Warnings in Montana, 2023 Every winter storm 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.