Alert archive / Texas / Mesoscale Discussions in 2009

Mesoscale Discussion 1697

July 28, 200911 counties in Arkansas; 7 parishes in Louisiana; 14 counties in Texas

The Storm Prediction Center issued this mesoscale discussion at Jul 28, 2009, 5:57 AM CDT for 11 counties in Arkansas; 7 parishes in Louisiana; 14 counties in Texas. It was in force for 78 min.

The area

The outline as issued.

The facts

Issued: Jul 28, 2009, 5:57 AM CDT (10:57 UTC)
Expired: Jul 28, 2009, 7:15 AM CDT
In force: 78 min
Issued by: the Storm Prediction Center
Concerning: Severe potential...watch possible

All 32 counties

Bradley County, AR, Calhoun County, AR, Columbia County, AR, Dallas County, AR, Hempstead County, AR, Lafayette County, AR, Little River County, AR, Miller County, AR, Nevada County, AR, Ouachita County, AR, Union County, AR, Bienville Parish, LA, Bossier Parish, LA, Caddo Parish, LA, Claiborne Parish, LA, Lincoln Parish, LA, Union Parish, LA, Webster Parish, LA, Bowie County, TX, Camp County, TX, Cass County, TX, Franklin County, TX, Gregg County, TX, Harrison County, TX, Marion County, TX, Morris County, TX, Panola County, TX, Red River County, TX, Smith County, TX, Titus County, TX, Upshur County, TX, Wood County, TX

The radar

The Shreveport radar (KSHV), 72 km from the middle of the area, began a volume at 11:00 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 630Jul 28, 7:55 AM 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
Jul 28, 1:41 AM CDT	Mesoscale Discussion	SPC	Columbia, Lafayette, Miller, Union	94 min
Jul 28, 7:58 AM CDT	Tornado Watch	SPC	Columbia, Lafayette, Miller, Union	7 hr
Jul 28, 11:25 AM CDT	Mesoscale Discussion	SPC	Ashley, Columbia, Union	65 min
Jul 28, 2:18 PM CDT	Mesoscale Discussion	SPC	Avoyelles, Catahoula, Concordia, East Baton Rouge, East Feliciana, Evangeline and 8 more	57 min
Jul 28, 1:26 PM CDT	Mesoscale Discussion	SPC	Bailey, Cochran, Dallam, Deaf Smith, Hartley, Oldham and 2 more	94 min
Jul 28, 2:16 PM CDT	Severe Thunderstorm Watch	SPC	Bailey, Dallam, Deaf Smith, Hartley, Oldham, Parmer	8 hr
Jul 28, 5:47 PM CDT	Mesoscale Discussion	SPC	Armstrong, Carson, Donley, Gray, Hansford, Hemphill and 9 more	88 min
Jul 28, 6:09 PM CDT	Severe Thunderstorm Watch	SPC	Armstrong, Briscoe, Carson, Castro, Childress, Cochran and 26 more	7 hr

Nearby

Mesoscale Discussions in Texas, 2009 Mesoscale Discussions in Arkansas, 2009 Mesoscale Discussions in Louisiana, 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.