Alert archive / Alabama / Mesoscale Discussions in 2005
Mesoscale Discussion 1641
The Storm Prediction Center issued this mesoscale discussion at Jul 4, 2005, 1:21 PM CDT for 22 counties in Alabama; 11 counties in Mississippi; 10 counties in Tennessee. It was in force for 84 min.
The area
The outline as issued.
The facts
- Issued
- Jul 4, 2005, 1:21 PM CDT (18:21 UTC)
- Expired
- Jul 4, 2005, 2:45 PM CDT
- In force
- 84 min
- Issued by
- the Storm Prediction Center
All 43 counties
Bibb County, AL, Blount County, AL, Colbert County, AL, Cullman County, AL, Fayette County, AL, Franklin County, AL, Greene County, AL, Hale County, AL, Jefferson County, AL, Lamar County, AL, Lauderdale County, AL, Lawrence County, AL, Limestone County, AL, Madison County, AL, Marion County, AL, Marshall County, AL, Morgan County, AL, Pickens County, AL, Shelby County, AL, Tuscaloosa County, AL, Walker County, AL, Winston County, AL, Chickasaw County, MS, Clay County, MS, Itawamba County, MS, Lee County, MS, Lowndes County, MS, Monroe County, MS, Noxubee County, MS, Oktibbeha County, MS, Pontotoc County, MS, Prentiss County, MS, Tishomingo County, MS, Bedford County, TN, Franklin County, TN, Giles County, TN, Lawrence County, TN, Lewis County, TN, Lincoln County, TN, Marshall County, TN, Maury County, TN, Moore County, TN, Wayne County, TN
The radar
The Columbus AFB radar (KGWX), 77 km from the middle of the area, began a volume at 18:23 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 12:00Z, 6.4 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
- 338 J/kg
- Mixed-layer CIN
- -87 J/kg
- Mixed-layer LCL
- 758 m above ground
- 0-6 km bulk shear
- 26 kt
- 0-1 km storm-relative helicity
- 18 m²/s²
- 0-3 km storm-relative helicity
- 33 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.1
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 |
|---|---|---|---|---|
| Jul 4, 12:50 PM CDT | Severe Thunderstorm Watch | SPC | Lake | 6 hr |
| Jul 4, 3:22 PM CDT | Mesoscale Discussion | SPC | Lake | 83 min |
| Jul 4, 5:41 PM CDT | Mesoscale Discussion | SPC | Benton, Carroll, Chester, Crockett, Decatur, Dyer and 19 more | 94 min |
Nearby
Mesoscale Discussions in Alabama, 2005Mesoscale Discussions in Mississippi, 2005Mesoscale Discussions in Tennessee, 2005Every mesoscale discussion in 2005
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.