Alert archive / Alabama / Mesoscale Discussions in 2014
Mesoscale Discussion 1816
The Storm Prediction Center issued this mesoscale discussion at Oct 6, 2014, 3:28 PM CDT for 14 counties in Alabama; 9 counties in Mississippi; 11 counties in Tennessee. It was in force for 62 min.
The area
The outline as issued.
The facts
- Issued
- Oct 6, 2014, 3:28 PM CDT (20:28 UTC)
- Expired
- Oct 6, 2014, 4:30 PM CDT
- In force
- 62 min
- Issued by
- the Storm Prediction Center
- Chance of a watch
- 40%
All 34 counties
Colbert County, AL, Cullman County, AL, Fayette County, AL, Franklin 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, Walker County, AL, Winston County, AL, Chickasaw County, MS, Clay County, MS, Itawamba County, MS, Lee County, MS, Lowndes County, MS, Monroe County, MS, Pontotoc County, MS, Prentiss County, MS, Tishomingo County, MS, Bedford County, TN, Coffee 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), 104 km from the middle of the area, began a volume at 20:28 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, 8.5 hours before the alert went out and 178 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
- 1252 m above ground
- 0-6 km bulk shear
- 38 kt
- 0-1 km storm-relative helicity
- 150 m²/s²
- 0-3 km storm-relative helicity
- 133 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 |
|---|---|---|---|---|
| Oct 6, 6:36 PM CDT | Mesoscale Discussion | SPC | Colbert, Franklin, Jackson, Lauderdale, Lawrence, Limestone and 2 more | 84 min |
| Oct 6, 9:31 AM CDT | Mesoscale Discussion | SPC | Adams, Amite, Franklin, Jefferson, Pike, Wilkinson | 119 min |
| Oct 6, 5:20 PM CDT | Mesoscale Discussion | SPC | DeSoto, Tate, Tunica | 115 min |
| Oct 6, 2:49 PM CDT | Mesoscale Discussion | SPC | Benton, Carroll, Cheatham, Chester, Clay, Crockett and 35 more | 56 min |
Nearby
Mesoscale Discussions in Alabama, 2014Mesoscale Discussions in Tennessee, 2014Mesoscale Discussions in Mississippi, 2014Every mesoscale discussion in 2014
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.