Alert archive / Montana / Winter Weather Advisories in 2012

Winter Weather Advisory 39, NWS Missoula, MT

May 4, 20127 counties in Montana; Lemhi County, Idaho

NWS Missoula, MT issued this winter weather advisory at May 4, 2012, 3:48 AM MDT for 7 counties in Montana; Lemhi County, Idaho. It took effect at May 4, 2012, 8:00 PM MDT. It was in force for 14 hr.

The area

The counties it named.

The facts

Issued: May 4, 2012, 3:48 AM MDT (09:48 UTC)
In effect from: May 4, 2012, 8:00 PM MDT
Expired: May 5, 2012, 10:17 AM MDT
In force: 14 hr
Issued by: NWS Missoula, MT

Counties Lemhi County, ID, Deer Lodge County, MT, Granite County, MT, Lake County, MT, Missoula County, MT, Powell County, MT, Ravalli County, MT, Silver Bow County, MT

The radar

The Missoula radar (KMSX), 83 km from the middle of the area, began a volume at 09:46 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 weather advisory 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 winter weather advisory went out at May 4, 3:39 AM MDT, 9 minutes earlier.

Area forecast discussion, May 4, 3:39 AM MDT, 9 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 4, 3:32 PM MDT	Special Weather Statement	MSO	Ravalli	43 min

Nearby

Winter Weather Advisories in Montana, 2012 Winter Weather Advisories in Idaho, 2012 Every winter weather advisory in 2012

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.