Alert archive / Arkansas / Severe Thunderstorm Watches in 2008
Severe Thunderstorm Watch 75
The Storm Prediction Center issued this severe thunderstorm watch at Feb 25, 2008, 7:20 PM CST for 23 counties in Arkansas; 15 parishes in Louisiana; 20 counties in Mississippi. It was in force for 7 hr.
The area
The outline as issued.
The facts
- Issued
- Feb 25, 2008, 7:20 PM CST (01:20 UTC)
- Expired
- Feb 26, 2008, 2:00 AM CST
- In force
- 7 hr
- Issued by
- the Storm Prediction Center
- Largest hail expected
- 2 in
- Strongest gust expected
- 60 kt
All 58 counties
Arkansas County, AR, Ashley County, AR, Bradley County, AR, Calhoun County, AR, Chicot County, AR, Clark County, AR, Cleveland County, AR, Columbia County, AR, Dallas County, AR, Desha County, AR, Drew County, AR, Grant County, AR, Hempstead County, AR, Hot Spring County, AR, Jefferson County, AR, Lafayette County, AR, Lincoln County, AR, Miller County, AR, Monroe County, AR, Nevada County, AR, Ouachita County, AR, Phillips County, AR, Union County, AR, Bienville Parish, LA, Bossier Parish, LA, Caddo Parish, LA, Claiborne Parish, LA, De Soto Parish, LA, East Carroll Parish, LA, Jackson Parish, LA, Lincoln Parish, LA, Morehouse Parish, LA, Ouachita Parish, LA, Red River Parish, LA, Richland Parish, LA, Union Parish, LA, Webster Parish, LA, West Carroll Parish, LA, Bolivar County, MS, Carroll County, MS, Coahoma County, MS, Grenada County, MS, Holmes County, MS, Humphreys County, MS, Issaquena County, MS, Lafayette County, MS, Leflore County, MS, Montgomery County, MS, Panola County, MS, Quitman County, MS, Sharkey County, MS, Sunflower County, MS, Tallahatchie County, MS, Tate County, MS, Tunica County, MS, Washington County, MS, Yalobusha County, MS, Yazoo County, MS
The radar
The Little Rock radar (KLZK), 138 km from the middle of the area, began a volume at 01:21 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.
What SPC expected
The probabilities SPC published with the watch, for the watch area over its life.
- Two or more tornadoes
- 20%
- One or more EF2 to EF5 tornadoes
- 5%
- Ten or more severe wind reports
- 30%
- One or more gusts of 65 knots or more
- 20%
- Ten or more severe hail reports
- 30%
- One or more hailstones of 2 inches or more
- 20%
- Six or more combined severe hail and wind reports
- 70%
Warnings issued inside it
17 tornado, severe thunderstorm and flash flood warnings for its counties while it was in force.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Feb 25, 7:48 PM CST | Severe Thunderstorm Warning | SHV | Claiborne, Webster | 57 min |
| Feb 25, 8:18 PM CST | Severe Thunderstorm Warning | SHV | Claiborne, Union | 33 min |
| Feb 25, 9:02 PM CST | Severe Thunderstorm Warning | SHV | Columbia, Hempstead, Lafayette, Miller, Nevada | 58 min |
| Feb 25, 9:23 PM CST | Severe Thunderstorm Warning | LZK | Ouachita | 52 min |
| Feb 25, 9:43 PM CST | Severe Thunderstorm Warning | SHV | Union | 47 min |
| Feb 25, 9:44 PM CST | Severe Thunderstorm Warning | LZK | Bradley, Cleveland | 46 min |
| Feb 25, 9:46 PM CST | Severe Thunderstorm Warning | LZK | Calhoun | 29 min |
| Feb 25, 9:54 PM CST | Severe Thunderstorm Warning | SHV | Bossier, Caddo | 66 min |
| Feb 25, 9:57 PM CST | Severe Thunderstorm Warning | LZK | Drew, Lincoln | 33 min |
| Feb 25, 10:07 PM CST | Severe Thunderstorm Warning | SHV | Claiborne, Webster | 53 min |
| Feb 25, 10:15 PM CST | Severe Thunderstorm Warning | LZK | Calhoun | 30 min |
| Feb 25, 10:17 PM CST | Severe Thunderstorm Warning | LZK | Desha | 58 min |
| Feb 25, 10:51 PM CST | Severe Thunderstorm Warning | SHV | Union | 39 min |
| Feb 25, 10:58 PM CST | Severe Thunderstorm Warning | JAN | Bolivar, Sunflower, Washington | 34 min |
| Feb 25, 11:01 PM CST | Severe Thunderstorm Warning | JAN | Ashley, Chicot | 44 min |
| Feb 26, 1:01 AM CST | Severe Thunderstorm Warning | JAN | Issaquena, Sharkey, Yazoo | 29 min |
| Feb 26, 1:28 AM CST | Severe Thunderstorm Warning | JAN | Attala, Choctaw, Montgomery | 32 min |
Discussions around it
SPC mesoscale discussions over the same counties from four hours before the watch to its end.
The nearest sounding before it
Shreveport, LA (KSHV), launched 00:00Z, 1.3 hours before the alert went out and 188 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
- 60 J/kg
- Mixed-layer CIN
- -384 J/kg
- Mixed-layer LCL
- 1105 m above ground
- 0-6 km bulk shear
- 77 kt
- 0-1 km storm-relative helicity
- 199 m²/s²
- 0-3 km storm-relative helicity
- 199 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
SPC that day
Everything else SPC issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Feb 25, 9:22 PM CST | Mesoscale Discussion | SPC | Arkansas, Ashley, Bradley, Calhoun, Chicot, Cleveland and 10 more | 83 min |
| Feb 25, 11:20 PM CST | Mesoscale Discussion | SPC | Ashley, Chicot | 85 min |
| Feb 26, 12:10 AM CST | Severe Thunderstorm Watch | SPC | Caldwell, Catahoula, Concordia, Franklin, Grant, LaSalle and 4 more | 7 hr |
| Feb 26, 2:50 AM CST | Mesoscale Discussion | SPC | Catahoula, Concordia, Franklin, Grant, LaSalle, Madison and 1 more | 85 min |
| Feb 26, 5:12 AM CST | Severe Thunderstorm Watch | SPC | George, Greene, Perry, Stone | 4 hr |
Nearby
Severe Thunderstorm Watches in Arkansas, 2008Severe Thunderstorm Watches in Mississippi, 2008Severe Thunderstorm Watches in Louisiana, 2008Every severe thunderstorm watch 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.