Alert archive / Mississippi / Mesoscale Discussions in 2007
Mesoscale Discussion 141
The Storm Prediction Center issued this mesoscale discussion at Feb 13, 2007, 2:05 AM CST for Mobile County, Washington County, Alabama; 15 counties in Mississippi. It was in force for 55 min.
The area
The outline as issued.
The facts
- Issued
- Feb 13, 2007, 2:05 AM CST (08:05 UTC)
- Expired
- Feb 13, 2007, 3:00 AM CST
- In force
- 55 min
- Issued by
- the Storm Prediction Center
Counties Mobile County, AL, Washington County, AL, Covington County, MS, Forrest County, MS, George County, MS, Greene County, MS, Jefferson Davis County, MS, Jones County, MS, Lamar County, MS, Lawrence County, MS, Lincoln County, MS, Marion County, MS, Perry County, MS, Pike County, MS, Simpson County, MS, Stone County, MS, Walthall County, MS
The watches that followed
Watches SPC issued over any of the same counties within four hours of this discussion.
The nearest sounding before it
Slidell Radar S, LA (KSIL), launched 00:00Z, 8.1 hours before the alert went out and 90 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
- 807 m above ground
- 0-6 km bulk shear
- 40 kt
- 0-1 km storm-relative helicity
- 91 m²/s²
- 0-3 km storm-relative helicity
- 145 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, 2:43 AM CST | Tornado Watch | SPC | Baldwin, Butler, Choctaw, Clarke, Conecuh, Covington and 6 more | 10 hr |
| Feb 13, 4:50 AM CST | Mesoscale Discussion | SPC | Dallas, Greene, Hale, Marengo, Perry, Sumter | 85 min |
| 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 Mississippi, 2007Mesoscale Discussions in Alabama, 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.