Alert archive / Arkansas / Mesoscale Discussions in 2005
Mesoscale Discussion 345
The Storm Prediction Center issued this mesoscale discussion at Mar 22, 2005, 2:39 PM CST for 25 counties in Arkansas; 8 counties in Mississippi; Shelby County, Tennessee. It was in force for 96 min.
The area
The outline as issued.
The facts
- Issued
- Mar 22, 2005, 2:39 PM CST (20:39 UTC)
- Expired
- Mar 22, 2005, 4:15 PM CST
- In force
- 96 min
- Issued by
- the Storm Prediction Center
All 34 counties
Baxter County, AR, Cleburne County, AR, Craighead County, AR, Crittenden County, AR, Cross County, AR, Faulkner County, AR, Fulton County, AR, Independence County, AR, Izard County, AR, Jackson County, AR, Lawrence County, AR, Lee County, AR, Marion County, AR, Monroe County, AR, Phillips County, AR, Poinsett County, AR, Prairie County, AR, Randolph County, AR, Searcy County, AR, Sharp County, AR, St. Francis County, AR, Stone County, AR, Van Buren County, AR, White County, AR, Woodruff County, AR, Coahoma County, MS, DeSoto County, MS, Lafayette County, MS, Marshall County, MS, Panola County, MS, Quitman County, MS, Tate County, MS, Tunica County, MS, Shelby County, TN
The radar
The Little Rock radar (KLZK), 83 km from the middle of the area, began a volume at 20:39 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 nearest sounding before it
Little Rock, AR (KLZK), launched 12:00Z, 8.7 hours before the alert went out and 176 km from the middle of its area. This is the routine balloon launch nearest before it, the air the forecaster had in hand, not a measurement taken for the alert.
- Mixed-layer CAPE
- 6 J/kg
- Mixed-layer CIN
- -170 J/kg
- Mixed-layer LCL
- 770 m above ground
- 0-6 km bulk shear
- 0 kt
- 0-1 km storm-relative helicity
- 0 m²/s²
- 0-3 km storm-relative helicity
- 0 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
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 |
|---|---|---|---|---|
| Mar 21, 8:29 PM CST | Mesoscale Discussion | SPC | Bradley, Calhoun, Clark, Cleveland, Columbia, Dallas and 11 more | 91 min |
| Mar 21, 9:20 PM CST | Tornado Watch | SPC | Arkansas, Ashley, Bradley, Calhoun, Chicot, Cleveland and 11 more | 7 hr |
| Mar 21, 10:12 PM CST | Mesoscale Discussion | SPC | Benton, Boone, Carroll, Crawford, Franklin, Johnson and 8 more | 63 min |
| Mar 21, 10:15 PM CST | Severe Thunderstorm Watch | SPC | Benton, Carroll, Crawford, Franklin, Logan, Madison and 5 more | 6 hr |
| Mar 21, 11:09 PM CST | Mesoscale Discussion | SPC | Hempstead, Howard, Lafayette, Little River, Miller, Pike and 1 more | 96 min |
| Mar 21, 11:26 PM CST | Mesoscale Discussion | SPC | Arkansas, Ashley, Bradley, Calhoun, Chicot, Cleveland and 10 more | 94 min |
| Mar 22, 1:45 AM CST | Tornado Watch | SPC | Ashley, Bradley, Chicot, Union | 6 hr |
| Mar 22, 2:20 AM CST | Mesoscale Discussion | SPC | Benton, Carroll, Crawford, Franklin, Logan, Madison and 5 more | 85 min |
| Mar 22, 3:57 AM CST | Mesoscale Discussion | SPC | Ashley, Bradley, Chicot, Union | 2 hr |
| Mar 22, 11:55 AM CST | Mesoscale Discussion | SPC | Arkansas, Chicot, Cleburne, Conway, Crittenden, Cross and 20 more | 95 min |
| Mar 22, 12:55 PM CST | Severe Thunderstorm Watch | SPC | Arkansas, Baxter, Boone, Chicot, Clay, Cleburne and 29 more | 7 hr |
| Mar 22, 4:27 PM CST | Mesoscale Discussion | SPC | Clay, Mississippi | 33 min |
| Mar 22, 3:00 AM CST | Tornado Watch | SPC | Wilkinson | 5 hr |
| Mar 22, 5:59 AM CST | Mesoscale Discussion | SPC | Adams, Amite, Attala, Carroll, Claiborne, Copiah and 8 more | 2 hr |
| Mar 22, 6:55 AM CST | Tornado Watch | SPC | Clarke, Covington, Forrest, George, Greene, Hancock and 19 more | 6 hr |
| Mar 22, 9:44 AM CST | Mesoscale Discussion | SPC | George, Greene, Hancock, Harrison, Jackson | 61 min |
| Mar 22, 3:43 PM CST | Mesoscale Discussion | SPC | Amite, Attala, Clarke, Covington, Forrest, Greene and 23 more | 2 hr |
| Mar 22, 4:50 PM CST | Severe Thunderstorm Watch | SPC | Alcorn, Benton, Itawamba, Lee, Pontotoc, Prentiss and 3 more | 5 hr |
Nearby
Mesoscale Discussions in Arkansas, 2005Mesoscale Discussions in Mississippi, 2005Mesoscale Discussions in Tennessee, 2005Every mesoscale discussion in 2005
Sources
The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.