Alert archive / Oklahoma / Mesoscale Discussions in 2009

Mesoscale Discussion 585

April 26, 200930 counties in Oklahoma; 15 counties in Texas

The Storm Prediction Center issued this mesoscale discussion at Apr 26, 2009, 3:34 PM CDT for 30 counties in Oklahoma; 15 counties in Texas. It was in force for 116 min.

The area

The outline as issued.

The facts

Issued: Apr 26, 2009, 3:34 PM CDT (20:34 UTC)
Expired: Apr 26, 2009, 5:30 PM CDT
In force: 116 min
Issued by: the Storm Prediction Center

All 45 counties

Beckham County, OK, Blaine County, OK, Caddo County, OK, Canadian County, OK, Cleveland County, OK, Comanche County, OK, Cotton County, OK, Custer County, OK, Dewey County, OK, Ellis County, OK, Garfield County, OK, Garvin County, OK, Grady County, OK, Greer County, OK, Harmon County, OK, Jackson County, OK, Kingfisher County, OK, Kiowa County, OK, Logan County, OK, Major County, OK, McClain County, OK, Noble County, OK, Oklahoma County, OK, Pottawatomie County, OK, Roger Mills County, OK, Stephens County, OK, Tillman County, OK, Washita County, OK, Woods County, OK, Woodward County, OK, Childress County, TX, Collingsworth County, TX, Cottle County, TX, Dickens County, TX, Donley County, TX, Foard County, TX, Hall County, TX, Hardeman County, TX, Hemphill County, TX, King County, TX, Knox County, TX, Motley County, TX, Wheeler County, TX, Wichita County, TX, Wilbarger County, TX

The radar

The Altus AFB radar (KFDR), 78 km from the middle of the area, began a volume at 20:35 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 watches that followed

Watches SPC issued over any of the same counties within four hours of this discussion.

Tornado Watch 195Apr 26, 6:15 PM CDT

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
Apr 25, 9:58 PM CDT	Mesoscale Discussion	SPC	Alfalfa, Blaine, Canadian, Custer, Dewey, Ellis and 10 more	92 min
Apr 25, 10:39 PM CDT	Tornado Watch	SPC	Alfalfa, Blaine, Craig, Custer, Dewey, Garfield and 13 more	4 hr
Apr 26, 1:28 AM CDT	Mesoscale Discussion	SPC	Alfalfa, Blaine, Craig, Custer, Dewey, Garfield and 13 more	92 min
Apr 26, 2:39 AM CDT	Tornado Watch	SPC	Craig, Garfield, Grant, Kay, Noble, Nowata and 3 more	3 hr
Apr 26, 6:56 AM CDT	Mesoscale Discussion	SPC	Beckham, Ellis, Harper, Roger Mills	94 min
Apr 26, 10:19 AM CDT	Mesoscale Discussion	SPC	Alfalfa, Beckham, Blaine, Custer, Dewey, Ellis and 8 more	56 min
Apr 26, 10:54 AM CDT	Mesoscale Discussion	SPC	Alfalfa, Beaver, Beckham, Blaine, Caddo, Canadian and 33 more	66 min
Apr 26, 11:07 AM CDT	Tornado Watch PDS	SPC	Alfalfa, Beaver, Beckham, Blaine, Custer, Dewey and 11 more	7 hr
Apr 26, 12:58 PM CDT	Mesoscale Discussion	SPC	Harmon, Jackson	92 min
Apr 26, 1:37 PM CDT	Tornado Watch PDS	SPC	Caddo, Canadian, Carter, Cleveland, Comanche, Cotton and 21 more	5 hr
Apr 26, 5:44 PM CDT	Mesoscale Discussion	SPC	Alfalfa, Beckham, Blaine, Caddo, Canadian, Cleveland and 30 more	61 min
Apr 26, 6:16 PM CDT	Tornado Watch PDS	SPC	Alfalfa, Beckham, Blaine, Caddo, Canadian, Carter and 38 more	8 hr
Apr 26, 3:01 PM CDT	Tornado Watch	SPC	Callahan, Coke, Crockett, Fisher, Glasscock, Haskell and 18 more	5 hr
Apr 26, 6:25 PM CDT	Mesoscale Discussion	SPC	Callahan, Coke, Coleman, Concho, Crockett, Edwards and 25 more	2 hr

Nearby

Mesoscale Discussions in Oklahoma, 2009 Mesoscale Discussions in Texas, 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.