Alert archive / Arkansas / Mesoscale Discussions in 2013

Mesoscale Discussion 171

February 18, 201311 counties in Arkansas; 11 parishes in Louisiana; 8 counties in Texas

The Storm Prediction Center issued this mesoscale discussion at Feb 18, 2013, 5:59 PM CST for 11 counties in Arkansas; 11 parishes in Louisiana; 8 counties in Texas. It was in force for 91 min.

The area

The outline as issued.

The facts

Issued: Feb 18, 2013, 5:59 PM CST (23:59 UTC)
Expired: Feb 18, 2013, 7:30 PM CST
In force: 91 min
Issued by: the Storm Prediction Center

All 30 counties

Bradley County, AR, Calhoun County, AR, Cleveland County, AR, Columbia County, AR, Dallas County, AR, Jefferson County, AR, Lafayette County, AR, Lonoke County, AR, Ouachita County, AR, Prairie County, AR, Union County, AR, Bienville Parish, LA, Bossier Parish, LA, Caddo Parish, LA, Claiborne Parish, LA, De Soto Parish, LA, Jackson Parish, LA, Lincoln Parish, LA, Red River Parish, LA, Sabine Parish, LA, Union Parish, LA, Webster Parish, LA, Harrison County, TX, Marion County, TX, Nacogdoches County, TX, Panola County, TX, Rusk County, TX, Sabine County, TX, San Augustine County, TX, Shelby County, TX

The radar

The Shreveport radar (KSHV), 126 km from the middle of the area, began a volume at 00:01 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.

Issued	Product	Office	Counties	Lasted
Feb 18, 1:29 PM CST	Mesoscale Discussion	SPC	Clark, Columbia, Crawford, Franklin, Garland, Hempstead and 14 more	2 hr
Feb 18, 2:19 PM CST	Severe Thunderstorm Watch	SPC	Arkansas, Bradley, Calhoun, Carroll, Clark, Cleveland and 42 more	7 hr
Feb 18, 3:52 PM CST	Mesoscale Discussion	SPC	Calhoun, Clark, Columbia, Conway, Dallas, Garland and 15 more	83 min
Feb 18, 4:54 PM CST	Mesoscale Discussion	SPC	Arkansas, Desha, Drew, Independence, Jackson, Jefferson and 7 more	66 min
Feb 18, 2:08 PM CST	Mesoscale Discussion	SPC	Beauregard, De Soto, Natchitoches, Red River, Sabine, Vernon	67 min
Feb 18, 5:06 PM CST	Mesoscale Discussion	SPC	Sabine	84 min

Nearby

Mesoscale Discussions in Arkansas, 2013 Mesoscale Discussions in Louisiana, 2013 Mesoscale Discussions in Texas, 2013 Every mesoscale discussion in 2013

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.