Alert archive / Mississippi / Mesoscale Discussions in 2008
Mesoscale Discussion 289
The Storm Prediction Center issued this mesoscale discussion at Feb 22, 2008, 1:05 AM CST for 14 counties in Alabama; 21 counties in Mississippi. It was in force for 55 min.
The area
The outline as issued.
The facts
- Issued
- Feb 22, 2008, 1:05 AM CST (07:05 UTC)
- Expired
- Feb 22, 2008, 2:00 AM CST
- In force
- 55 min
- Issued by
- the Storm Prediction Center
All 35 counties
Autauga County, AL, Bibb County, AL, Chilton County, AL, Clay County, AL, Coosa County, AL, Greene County, AL, Hale County, AL, Jefferson County, AL, Perry County, AL, Pickens County, AL, Shelby County, AL, Sumter County, AL, Talladega County, AL, Tuscaloosa County, AL, Attala County, MS, Carroll County, MS, Choctaw County, MS, Holmes County, MS, Humphreys County, MS, Issaquena County, MS, Kemper County, MS, Lauderdale County, MS, Leake County, MS, Lowndes County, MS, Madison County, MS, Montgomery County, MS, Neshoba County, MS, Newton County, MS, Noxubee County, MS, Oktibbeha County, MS, Scott County, MS, Sharkey County, MS, Washington County, MS, Winston County, MS, Yazoo County, MS
The radar
The Columbus AFB radar (KGWX), 103 km from the middle of the area, began a volume at 07:08 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 nearest sounding before it
Birmingham, AL (KBMX), launched 00:00Z, 7.1 hours before the alert went out and 131 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
- 784 m above ground
- 0-6 km bulk shear
- 63 kt
- 0-1 km storm-relative helicity
- -31 m²/s²
- 0-3 km storm-relative helicity
- 125 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 |
|---|---|---|---|---|
| Feb 21, 6:53 PM CST | Severe Thunderstorm Watch | SPC | Choctaw, Clarke, Greene, Marengo, Sumter, Washington | 7 hr |
| Feb 22, 1:44 AM CST | Severe Thunderstorm Watch | SPC | Autauga, Bibb, Chambers, Chilton, Choctaw, Clay and 17 more | 5 hr |
| Feb 22, 4:41 AM CST | Mesoscale Discussion | SPC | Autauga, Chilton, Choctaw, Clarke, Dallas, Marengo and 2 more | 64 min |
| Feb 21, 7:22 PM CST | Mesoscale Discussion | SPC | Hancock, Harrison, Jackson, Pearl River, Stone, Wilkinson | 83 min |
| Feb 21, 8:54 PM CST | Tornado Watch | SPC | Amite, Forrest, Greene, Lamar, Marion, Perry and 3 more | 7 hr |
| Feb 21, 10:31 PM CST | Mesoscale Discussion | SPC | Hancock, Harrison, Jackson, Pearl River, Stone, Wilkinson | 119 min |
| Feb 21, 10:59 PM CST | Mesoscale Discussion | SPC | Hancock, Harrison, Jackson, Pearl River, Stone, Wilkinson | 2 hr |
Nearby
Mesoscale Discussions in Mississippi, 2008Mesoscale Discussions in Alabama, 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.