Alert archive / Alabama / Mesoscale Discussions in 2008
Mesoscale Discussion 290
The Storm Prediction Center issued this mesoscale discussion at Feb 22, 2008, 4:41 AM CST for 8 counties in Alabama; 8 counties in Mississippi. It was in force for 64 min.
The area
The outline as issued.
The facts
- Issued
- Feb 22, 2008, 4:41 AM CST (10:41 UTC)
- Expired
- Feb 22, 2008, 5:45 AM CST
- In force
- 64 min
- Issued by
- the Storm Prediction Center
Counties Autauga County, AL, Chilton County, AL, Choctaw County, AL, Clarke County, AL, Dallas County, AL, Marengo County, AL, Perry County, AL, Wilcox County, AL, Clarke County, MS, Covington County, MS, Forrest County, MS, Jones County, MS, Lamar County, MS, Marion County, MS, Perry County, MS, Wayne County, MS
The radar
The Mobile radar (KMOB), 154 km from the middle of the area, began a volume at 10:41 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
Birmingham, AL (KBMX), launched 00:00Z, 10.7 hours before the alert went out and 167 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, 1:05 AM CST | Mesoscale Discussion | SPC | Autauga, Bibb, Chilton, Clay, Coosa, Greene and 8 more | 55 min |
| Feb 22, 1:44 AM CST | Severe Thunderstorm Watch | SPC | Autauga, Bibb, Chambers, Chilton, Choctaw, Clay and 17 more | 5 hr |
| 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 Alabama, 2008Mesoscale Discussions in Mississippi, 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.