Alert archive / Alabama / Mesoscale Discussions in 2007
Mesoscale Discussion 143
The Storm Prediction Center issued this mesoscale discussion at Feb 13, 2007, 4:50 AM CST for 6 counties in Alabama; Kemper County, Lauderdale County, Mississippi. It was in force for 85 min.
The area
The outline as issued.
The facts
- Issued
- Feb 13, 2007, 4:50 AM CST (10:50 UTC)
- Expired
- Feb 13, 2007, 6:15 AM CST
- In force
- 85 min
- Issued by
- the Storm Prediction Center
Counties Dallas County, AL, Greene County, AL, Hale County, AL, Marengo County, AL, Perry County, AL, Sumter County, AL, Kemper County, MS, Lauderdale County, MS
The radar
The Birmingham radar (KBMX), 129 km from the middle of the area, began a volume at 10:53 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
Jackson, MS (KJAN), launched 00:00Z, 10.8 hours before the alert went out and 209 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
- 1639 m above ground
- 0-6 km bulk shear
- 35 kt
- 0-1 km storm-relative helicity
- 103 m²/s²
- 0-3 km storm-relative helicity
- 162 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 13, 2:05 AM CST | Mesoscale Discussion | SPC | Mobile, Washington | 55 min |
| Feb 13, 2:43 AM CST | Tornado Watch | SPC | Baldwin, Butler, Choctaw, Clarke, Conecuh, Covington and 6 more | 10 hr |
| Feb 13, 5:26 AM CST | Mesoscale Discussion | SPC | Mobile, Washington | 94 min |
| Feb 13, 7:24 AM CST | Mesoscale Discussion | SPC | Baldwin, Conecuh, Escambia, Mobile, Monroe | 96 min |
| Feb 13, 9:07 AM CST | Tornado Watch | SPC | Coffee, Dale, Geneva, Henry, Houston | 7 hr |
| Feb 13, 11:03 AM CST | Mesoscale Discussion | SPC | Colbert, Franklin, Lamar, Marion | 87 min |
| Feb 13, 12:08 PM CST | Mesoscale Discussion | SPC | Coffee, Dale, Geneva, Henry, Houston | 67 min |
| Feb 13, 12:49 PM CST | Severe Thunderstorm Watch | SPC | Autauga, Bibb, Blount, Chilton, Colbert, Cullman and 21 more | 6 hr |
| Feb 13, 5:09 PM CST | Mesoscale Discussion | SPC | Autauga, Bibb, Blount, Bullock, Butler, Chilton and 21 more | 96 min |
| Feb 13, 5:18 PM CST | Tornado Watch | SPC | Autauga, Barbour, Bibb, Blount, Bullock, Calhoun and 29 more | 4 hr |
| Feb 12, 9:38 PM CST | Mesoscale Discussion | SPC | Wilkinson | 97 min |
Nearby
Mesoscale Discussions in Alabama, 2007Mesoscale Discussions in Mississippi, 2007Every mesoscale discussion in 2007
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.