Alert archive / Alabama / Mesoscale Discussions in 2003
Mesoscale Discussion 1568
The Storm Prediction Center issued this mesoscale discussion at Jul 1, 2003, 12:57 PM CDT for 9 counties in Alabama; 5 counties in Georgia. It was in force for 2 hr.
The area
The outline as issued.
The facts
- Issued
- Jul 1, 2003, 12:57 PM CDT (17:57 UTC)
- Expired
- Jul 1, 2003, 3:00 PM CDT
- In force
- 2 hr
- Issued by
- the Storm Prediction Center
Counties Barbour County, AL, Bullock County, AL, Chambers County, AL, Henry County, AL, Lee County, AL, Macon County, AL, Pike County, AL, Russell County, AL, Tallapoosa County, AL, Chattahoochee County, GA, Harris County, GA, Muscogee County, GA, Quitman County, GA, Stewart County, GA
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 12:00Z, 6.0 hours before the alert went out and 151 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
- 26 J/kg
- Mixed-layer CIN
- -7 J/kg
- Mixed-layer LCL
- 555 m above ground
- 0-6 km bulk shear
- 46 kt
- 0-1 km storm-relative helicity
- 449 m²/s²
- 0-3 km storm-relative helicity
- 762 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.8
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 |
|---|---|---|---|---|
| Jun 30, 7:22 PM CDT | Mesoscale Discussion | SPC | Coffee, Covington, Dale, Geneva, Henry, Houston and 1 more | 113 min |
| Jun 30, 9:40 PM CDT | Tornado Watch | SPC | Baldwin, Butler, Choctaw, Clarke, Conecuh, Covington and 5 more | 5 hr |
| Jul 1, 1:25 AM CDT | Tornado Watch | SPC | Autauga, Baldwin, Barbour, Bibb, Bullock, Butler and 41 more | 9 hr |
| Jul 1, 4:26 AM CDT | Mesoscale Discussion | SPC | Autauga, Baldwin, Barbour, Bibb, Bullock, Butler and 41 more | 2 hr |
| Jul 1, 7:28 AM CDT | Mesoscale Discussion | SPC | Barbour, Bullock, Calhoun, Chambers, Clay, Cleburne and 15 more | 62 min |
| Jul 1, 9:40 AM CDT | Tornado Watch | SPC | Barbour, Bullock, Calhoun, Chambers, Clay, Cleburne and 16 more | 6 hr |
| Jul 1, 2:49 PM CDT | Mesoscale Discussion | SPC | Barbour, Chambers, Cleburne, Henry, Houston, Lee and 2 more | 116 min |
| Jul 1, 3:05 PM CDT | Tornado Watch | SPC | Appling, Atkinson, Bacon, Baker, Baldwin, Ben Hill and 74 more | 6 hr |
| Jul 1, 4:26 PM CDT | Mesoscale Discussion | SPC | Bryan, Chatham, Effingham, Liberty | 94 min |
| Jul 1, 5:00 PM CDT | Tornado Watch | SPC | Bryan, Bulloch, Burke, Candler, Chatham, Columbia and 21 more | 4 hr |
Nearby
Mesoscale Discussions in Alabama, 2003Mesoscale Discussions in Georgia, 2003Every mesoscale discussion in 2003
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.