Alert archive / Montana / Mesoscale Discussions in 2009

Mesoscale Discussion 1808

August 6, 20094 counties in Montana

The Storm Prediction Center issued this mesoscale discussion at Aug 6, 2009, 9:55 PM MDT for 4 counties in Montana. It was in force for 65 min.

The area

The outline as issued.

The facts

Issued: Aug 6, 2009, 9:55 PM MDT (03:55 UTC)
Expired: Aug 6, 2009, 11:00 PM MDT
In force: 65 min
Issued by: the Storm Prediction Center

Counties Garfield County, MT, Petroleum County, MT, Phillips County, MT, Valley County, MT

The radar

The Glasgow radar (KGGW), 69 km from the middle of the area, began a volume at 03:56 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 text

As transmitted, in the capitals the NWS used until 2016.

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SPC that day

Everything else SPC issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Aug 6, 6:28 PM MDT	Mesoscale Discussion	SPC	Big Horn, Broadwater, Carbon, Fergus, Gallatin, Garfield and 14 more	92 min
Aug 6, 7:39 PM MDT	Severe Thunderstorm Watch	SPC	Garfield, McCone, Petroleum, Phillips, Valley	5 hr
Aug 7, 11:50 AM MDT	Mesoscale Discussion	SPC	Big Horn, Carbon, Carter, Custer, Fallon, Gallatin and 10 more	115 min
Aug 7, 2:38 PM MDT	Severe Thunderstorm Watch	SPC	Big Horn, Carbon, Carter, Custer, Fallon, Golden Valley and 8 more	7 hr
Aug 7, 5:55 PM MDT	Mesoscale Discussion	SPC	Big Horn, Carbon, Carter, Custer, Powder River, Rosebud and 2 more	95 min

Nearby

Mesoscale Discussions in Montana, 2009 Every mesoscale discussion in 2009

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.