Alert archive / Wyoming / Mesoscale Discussions in 2009

Mesoscale Discussion 237

March 23, 2009Carter County, Powder River County, Montana; 4 counties in South Dakota; 13 counties in Wyoming

The Storm Prediction Center issued this mesoscale discussion at Mar 23, 2009, 3:59 AM MDT for Carter County, Powder River County, Montana; 4 counties in South Dakota; 13 counties in Wyoming. It was in force for 6 hr.

The area

The outline as issued.

The facts

Issued
Mar 23, 2009, 3:59 AM MDT (09:59 UTC)
Expired
Mar 23, 2009, 10:00 AM MDT
In force
6 hr
Issued by
the Storm Prediction Center

Counties Carter County, MT, Powder River County, MT, Butte County, SD, Custer County, SD, Harding County, SD, Lawrence County, SD, Big Horn County, WY, Campbell County, WY, Converse County, WY, Crook County, WY, Fremont County, WY, Hot Springs County, WY, Johnson County, WY, Natrona County, WY, Niobrara County, WY, Platte County, WY, Sheridan County, WY, Washakie County, WY, Weston County, WY

The radar

The Rapid City radar (KUDX), 196 km from the middle of the area, began a volume at 10:01 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.

IssuedProductOfficeCountiesLasted
Mar 23, 11:06 AM MDTMesoscale DiscussionSPCCarter, Fallon, Powder River5 hr
Mar 23, 5:56 PM MDTMesoscale DiscussionSPCCarter3 hr
Mar 22, 10:28 PM MDTMesoscale DiscussionSPCBrookings, Deuel, Grant3 hr
Mar 23, 9:13 AM MDTMesoscale DiscussionSPCGregory2 hr
Mar 23, 11:16 AM MDTTornado WatchSPCAurora, Beadle, Bon Homme, Brule, Buffalo, Charles Mix and 17 more4 hr
Mar 23, 2:11 PM MDTMesoscale DiscussionSPCBon Homme, Charles Mix, Clay, Gregory, Hutchinson, Lincoln and 3 more94 min
Mar 23, 2:50 PM MDTTornado WatchSPCAurora, Beadle, Bon Homme, Brookings, Brule, Buffalo and 27 more6 hr
Mar 23, 5:04 PM MDTMesoscale DiscussionSPCBeadle, Hand, Hanson, Hughes, Hyde, Jerauld and 10 more116 min

Nearby

Mesoscale Discussions in Wyoming, 2009Mesoscale Discussions in South Dakota, 2009Mesoscale Discussions in Montana, 2009Every 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.