Alert archive / Arkansas / Mesoscale Discussions in 2019

Mesoscale Discussion 170

March 9, 201912 counties in Arkansas; 11 parishes in Louisiana

The Storm Prediction Center issued this mesoscale discussion at Mar 9, 2019, 10:59 AM CST for 12 counties in Arkansas; 11 parishes in Louisiana. It was in force for 2 hr.

The area

The outline as issued.

The facts

Issued: Mar 9, 2019, 10:59 AM CST (16:59 UTC)
Expired: Mar 9, 2019, 1:00 PM CST
In force: 2 hr
Issued by: the Storm Prediction Center

All 23 counties

Ashley County, AR, Bradley County, AR, Calhoun County, AR, Cleveland County, AR, Columbia County, AR, Dallas County, AR, Drew County, AR, Grant County, AR, Lafayette County, AR, Nevada County, AR, Ouachita County, AR, Union County, AR, Bienville Parish, LA, Bossier Parish, LA, Caddo Parish, LA, Claiborne Parish, LA, Jackson Parish, LA, Lincoln Parish, LA, Morehouse Parish, LA, Ouachita Parish, LA, Red River Parish, LA, Union Parish, LA, Webster Parish, LA

The radar

The Shreveport radar (KSHV), 99 km from the middle of the area, began a volume at 16:58 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.

The text

As transmitted.

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SPC that day

Everything else SPC issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Mar 9, 1:58 AM CST	Mesoscale Discussion	SPC	Baxter, Benton, Boone, Carroll, Crawford, Franklin and 12 more	92 min
Mar 9, 2:31 AM CST	Severe Thunderstorm Watch	SPC	Baxter, Benton, Boone, Carroll, Crawford, Franklin and 11 more	7 hr
Mar 9, 3:03 AM CST	Mesoscale Discussion	SPC	Clark, Columbia, Hempstead, Hot Spring, Howard, Lafayette and 8 more	117 min
Mar 9, 3:49 AM CST	Severe Thunderstorm Watch	SPC	Sebastian	7 hr
Mar 9, 4:45 AM CST	Mesoscale Discussion	SPC	Baxter, Benton, Boone, Carroll, Crawford, Franklin and 12 more	60 min
Mar 9, 6:58 AM CST	Mesoscale Discussion	SPC	Arkansas, Ashley, Bradley, Calhoun, Clark, Clay and 60 more	2 hr
Mar 9, 7:18 AM CST	Severe Thunderstorm Watch	SPC	Arkansas, Bradley, Calhoun, Clark, Cleburne, Cleveland and 36 more	8 hr
Mar 9, 9:45 AM CST	Mesoscale Discussion	SPC	Clay, Craighead, Crittenden, Cross, Greene, Jackson and 11 more	3 hr
Mar 9, 10:32 AM CST	Tornado Watch	SPC	Arkansas, Ashley, Chicot, Clay, Craighead, Crittenden and 15 more	8 hr
Mar 9, 11:05 AM CST	Tornado Watch	SPC	Columbia, Lafayette, Union	4 hr
Mar 9, 1:27 PM CST	Mesoscale Discussion	SPC	Arkansas, Ashley, Chicot, Crittenden, Desha, Drew and 3 more	2 hr
Mar 9, 1:58 PM CST	Tornado Watch	SPC	Ashley, Chicot	5 hr
Mar 9, 2:26 PM CST	Mesoscale Discussion	SPC	Bienville, Caldwell, De Soto, Grant, Jackson, LaSalle and 4 more	2 hr

Nearby

Mesoscale Discussions in Arkansas, 2019 Mesoscale Discussions in Louisiana, 2019 Every mesoscale discussion in 2019

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.