Alert archive / Arkansas / Mesoscale Discussions in 2008
Mesoscale Discussion 412
The Storm Prediction Center issued this mesoscale discussion at Mar 15, 2008, 2:12 AM CDT for 4 states. It was in force for 93 min.
The area
The outline as issued.
The facts
- Issued
- Mar 15, 2008, 2:12 AM CDT (07:12 UTC)
- Expired
- Mar 15, 2008, 3:45 AM CDT
- In force
- 93 min
- Issued by
- the Storm Prediction Center
All 62 counties
Arkansas County, AR, Baxter County, AR, Cleburne County, AR, Conway County, AR, Craighead County, AR, Crittenden County, AR, Cross County, AR, Faulkner County, AR, Fulton County, AR, Greene County, AR, Independence County, AR, Izard County, AR, Jackson County, AR, Lawrence County, AR, Lee County, AR, Lonoke County, AR, Mississippi County, AR, Monroe County, AR, Perry County, AR, Phillips County, AR, Poinsett County, AR, Prairie County, AR, Pulaski County, AR, Randolph County, AR, Saline 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, Dunklin County, MO, Pemiscot County, MO, Alcorn County, MS, Benton County, MS, Coahoma County, MS, DeSoto County, MS, Lafayette County, MS, Lee County, MS, Marshall County, MS, Panola County, MS, Pontotoc County, MS, Prentiss County, MS, Quitman County, MS, Tate County, MS, Tippah County, MS, Tunica County, MS, Union County, MS, Yalobusha County, MS, Chester County, TN, Crockett County, TN, Dyer County, TN, Fayette County, TN, Gibson County, TN, Hardeman County, TN, Haywood County, TN, Lauderdale County, TN, Madison County, TN, McNairy County, TN, Shelby County, TN, Tipton County, TN
The radar
The Memphis radar (KNQA), 72 km from the middle of the area, began a volume at 07:14 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 00:00Z, 7.2 hours before the alert went out and 79 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
- 0 J/kg
- Mixed-layer CIN
- No buoyant parcel
- Mixed-layer LCL
- 1631 m above ground
- 0-6 km bulk shear
- 59 kt
- 0-1 km storm-relative helicity
- 167 m²/s²
- 0-3 km storm-relative helicity
- 283 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 14, 7:14 PM CDT | Tornado Watch | SPC | Arkansas, Ashley, Bradley, Calhoun, Chicot, Clark and 22 more | 7 hr |
| Mar 14, 8:01 PM CDT | Mesoscale Discussion | SPC | Benton, Washington | 29 min |
| Mar 14, 8:17 PM CDT | Severe Thunderstorm Watch | SPC | Benton, Carroll, Crawford, Franklin, Madison, Sebastian and 1 more | 5 hr |
| Mar 14, 9:50 PM CDT | Mesoscale Discussion | SPC | Arkansas, Ashley, Bradley, Calhoun, Chicot, Clark and 23 more | 55 min |
| Mar 14, 10:47 PM CDT | Mesoscale Discussion | SPC | Baxter, Benton, Boone, Carroll, Cleburne, Conway and 29 more | 28 min |
| Mar 14, 11:24 PM CDT | Severe Thunderstorm Watch | SPC | Baxter, Boone, Clay, Cleburne, Conway, Craighead and 32 more | 7 hr |
| Mar 14, 11:55 PM CDT | Mesoscale Discussion | SPC | Arkansas, Ashley, Bradley, Calhoun, Chicot, Clark and 15 more | 65 min |
| Mar 14, 11:55 PM CDT | Severe Thunderstorm Watch | SPC | Crittenden, Mississippi | 7 hr |
| Mar 15, 4:30 AM CDT | Mesoscale Discussion | SPC | Arkansas, Grant, Hot Spring, Jefferson, Lee, Monroe and 2 more | 90 min |
| Mar 15, 10:23 AM CDT | Mesoscale Discussion | SPC | Clay, Craighead, Crittenden, Cross, Greene, Lee and 4 more | 67 min |
| Mar 14, 10:36 PM CDT | Mesoscale Discussion | SPC | Attala, Calhoun, Carroll, Chickasaw, Choctaw, Clarke and 24 more | 84 min |
| Mar 14, 11:01 PM CDT | Tornado Watch | SPC | Attala, Calhoun, Carroll, Chickasaw, Choctaw, Clarke and 27 more | 3 hr |
| Mar 15, 1:47 AM CDT | Mesoscale Discussion | SPC | Attala, Carroll, Choctaw, Clarke, Clay, Copiah and 25 more | 88 min |
| Mar 15, 6:58 AM CDT | Mesoscale Discussion | SPC | Tishomingo | 62 min |
| Mar 14, 7:11 PM CDT | Mesoscale Discussion | SPC | Bradley, Polk | 64 min |
| Mar 15, 12:39 AM CDT | Mesoscale Discussion | SPC | Bedford, Coffee, Franklin, Giles, Grundy, Hamilton and 8 more | 66 min |
| Mar 15, 2:57 AM CDT | Mesoscale Discussion | SPC | Polk | 93 min |
| Mar 15, 2:39 PM CDT | Mesoscale Discussion | SPC | Hamilton, Marion | 2 hr |
Nearby
Mesoscale Discussions in Arkansas, 2008Mesoscale Discussions in Mississippi, 2008Mesoscale Discussions in Tennessee, 2008Every mesoscale discussion in 2008
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.