Alert archive / Arkansas / Mesoscale Discussions in 2011
Mesoscale Discussion 825
The Storm Prediction Center issued this mesoscale discussion at May 20, 2011, 10:30 AM CDT for 4 states. It was in force for 60 min.
The area
The outline as issued.
The facts
- Issued
- May 20, 2011, 10:30 AM CDT (15:30 UTC)
- Expired
- May 20, 2011, 11:30 AM CDT
- In force
- 60 min
- Issued by
- the Storm Prediction Center
All 108 counties
Arkansas County, AR, Baxter County, AR, Boone County, AR, Bradley County, AR, Calhoun County, AR, Carroll County, AR, Clark County, AR, Cleburne County, AR, Cleveland County, AR, Columbia County, AR, Conway County, AR, Crawford County, AR, Dallas County, AR, Desha County, AR, Drew County, AR, Faulkner County, AR, Franklin County, AR, Fulton County, AR, Garland County, AR, Grant County, AR, Hempstead County, AR, Hot Spring County, AR, Howard County, AR, Independence County, AR, Izard County, AR, Jackson County, AR, Jefferson County, AR, Johnson County, AR, Lafayette County, AR, Lincoln County, AR, Little River County, AR, Logan County, AR, Lonoke County, AR, Madison County, AR, Marion County, AR, Miller County, AR, Monroe County, AR, Montgomery County, AR, Nevada County, AR, Newton County, AR, Ouachita County, AR, Perry County, AR, Pike County, AR, Polk County, AR, Pope County, AR, Prairie County, AR, Pulaski County, AR, Saline County, AR, Scott County, AR, Searcy County, AR, Sebastian County, AR, Sevier County, AR, Stone County, AR, Union County, AR, Van Buren County, AR, Washington County, AR, White County, AR, Woodruff County, AR, Yell County, AR, Bossier Parish, LA, Caddo Parish, LA, Claiborne Parish, LA, Webster Parish, LA, Bryan County, OK, Choctaw County, OK, Haskell County, OK, Latimer County, OK, LeFlore County, OK, McCurtain County, OK, Pushmataha County, OK, Sequoyah County, OK, Anderson County, TX, Bowie County, TX, Camp County, TX, Cass County, TX, Cherokee County, TX, Collin County, TX, Dallas County, TX, Delta County, TX, Ellis County, TX, Fannin County, TX, Franklin County, TX, Freestone County, TX, Gregg County, TX, Harrison County, TX, Henderson County, TX, Hill County, TX, Hopkins County, TX, Houston County, TX, Hunt County, TX, Kaufman County, TX, Lamar County, TX, Leon County, TX, Limestone County, TX, Marion County, TX, Morris County, TX, Nacogdoches County, TX, Navarro County, TX, Panola County, TX, Rains County, TX, Red River County, TX, Rockwall County, TX, Rusk County, TX, Smith County, TX, Titus County, TX, Upshur County, TX, Van Zandt County, TX, Wood County, TX
The radar
The Shreveport radar (KSHV), 123 km from the middle of the area, began a volume at 15:32 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, in the capitals the NWS used until 2016.
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</html>SPC that day
Everything else SPC issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| May 20, 9:11 AM CDT | Mesoscale Discussion | SPC | Benton, Washington | 2 hr |
| May 20, 11:03 AM CDT | Tornado Watch | SPC | Clark, Columbia, Conway, Crawford, Dallas, Franklin and 26 more | 7 hr |
| May 20, 1:28 PM CDT | Mesoscale Discussion | SPC | Baxter, Boone, Calhoun, Carroll, Clark, Cleburne and 47 more | 62 min |
| May 20, 4:00 PM CDT | Mesoscale Discussion | SPC | Calhoun, Clark, Columbia, Conway, Dallas, Faulkner and 24 more | 60 min |
| May 20, 5:56 PM CDT | Tornado Watch | SPC | Clark, Columbia, Dallas, Garland, Grant, Hempstead and 16 more | 3 hr |
| May 19, 7:47 PM CDT | Mesoscale Discussion | SPC | Caddo, Canadian, Comanche, Cotton, Grady, Kiowa and 1 more | 118 min |
| May 19, 11:39 PM CDT | Severe Thunderstorm Watch | SPC | Harmon, Jackson, Tillman | 6 hr |
| May 20, 2:58 AM CDT | Mesoscale Discussion | SPC | Comanche, Jackson, Kiowa, Tillman, Washita | 92 min |
| May 20, 1:52 PM CDT | Mesoscale Discussion | SPC | Ellis, Harper, Woods, Woodward | 113 min |
| May 20, 2:32 PM CDT | Severe Thunderstorm Watch | SPC | Alfalfa, Ellis, Garfield, Grant, Harper, Major and 2 more | 7 hr |
| May 20, 6:01 PM CDT | Mesoscale Discussion | SPC | Alfalfa, Ellis, Garfield, Grant, Harper, Major and 2 more | 59 min |
| May 19, 9:36 PM CDT | Mesoscale Discussion | SPC | Borden, Briscoe, Childress, Coke, Collingsworth, Cottle and 28 more | 84 min |
| May 20, 12:08 PM CDT | Mesoscale Discussion | SPC | Anderson, Bandera, Bastrop, Bell, Blanco, Bosque and 56 more | 67 min |
| May 20, 12:28 PM CDT | Severe Thunderstorm Watch | SPC | Anderson, Bandera, Bastrop, Bell, Bexar, Blanco and 60 more | 10 hr |
| May 20, 5:34 PM CDT | Mesoscale Discussion | SPC | Anderson, Bandera, Bastrop, Bell, Bexar, Blanco and 41 more | 116 min |
Nearby
Mesoscale Discussions in Arkansas, 2011Mesoscale Discussions in Texas, 2011Mesoscale Discussions in Oklahoma, 2011Every mesoscale discussion in 2011
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.