Alert archive / Oklahoma / Mesoscale Discussions in 2015

Mesoscale Discussion 413

April 22, 201523 counties in Oklahoma; Hemphill County, Wheeler County, Texas

The Storm Prediction Center issued this mesoscale discussion at Apr 22, 2015, 2:55 AM CDT for 23 counties in Oklahoma; Hemphill County, Wheeler County, Texas. It was in force for 3 hr.

The area

The outline as issued.

The facts

Issued: Apr 22, 2015, 2:55 AM CDT (07:55 UTC)
Expired: Apr 22, 2015, 5:30 AM CDT
In force: 3 hr
Issued by: the Storm Prediction Center
Chance of a watch: 20%

All 25 counties

Alfalfa County, OK, Beckham County, OK, Blaine County, OK, Caddo County, OK, Canadian County, OK, Comanche County, OK, Custer County, OK, Dewey County, OK, Ellis County, OK, Garfield County, OK, Grady County, OK, Grant County, OK, Kingfisher County, OK, Kiowa County, OK, Logan County, OK, Major County, OK, Noble County, OK, Oklahoma County, OK, Pawnee County, OK, Payne County, OK, Roger Mills County, OK, Washita County, OK, Woodward County, OK, Hemphill County, TX, Wheeler County, TX

The radar

The Vance AFB radar (KVNX), 105 km from the middle of the area, began a volume at 07:57 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
Apr 22, 6:24 AM CDT	Mesoscale Discussion	SPC	Caddo, Canadian, Carter, Cleveland, Coal, Comanche and 19 more	2 hr
Apr 22, 2:07 PM CDT	Mesoscale Discussion	SPC	Cotton, Harmon, Jackson, Tillman	2 hr
Apr 22, 2:56 PM CDT	Tornado Watch	SPC	Harmon, Jackson, Tillman	9 hr
Apr 22, 10:43 AM CDT	Mesoscale Discussion	SPC	Aransas, Atascosa, Austin, Bandera, Bastrop, Bee and 36 more	2 hr
Apr 22, 11:13 AM CDT	Tornado Watch	SPC	Aransas, Bee, Calhoun, Duval, Goliad, Jim Wells and 7 more	7 hr
Apr 22, 12:07 PM CDT	Mesoscale Discussion	SPC	Jim Wells, Nueces	83 min
Apr 22, 1:43 PM CDT	Mesoscale Discussion	SPC	Atascosa, Austin, Bandera, Bastrop, Bexar, Caldwell and 15 more	92 min
Apr 22, 2:29 PM CDT	Mesoscale Discussion	SPC	Aransas, Bee, Calhoun, Duval, Goliad, Jim Wells and 5 more	61 min
Apr 22, 5:48 PM CDT	Mesoscale Discussion	SPC	Bosque, Comanche, Coryell, Ellis, Erath, Hamilton and 8 more	117 min
Apr 22, 6:45 PM CDT	Mesoscale Discussion	SPC	Archer, Armstrong, Baylor, Briscoe, Carson, Castro and 29 more	2 hr

Nearby

Mesoscale Discussions in Oklahoma, 2015 Mesoscale Discussions in Texas, 2015 Every mesoscale discussion in 2015

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.