Alert archive / Alabama / Mesoscale Discussions in 2020
Mesoscale Discussion 86
The Storm Prediction Center issued this mesoscale discussion at Feb 6, 2020, 2:02 AM CST for 24 counties in Alabama; 10 counties in Florida; 23 counties in Georgia. It was in force for 88 min.
The area
The outline as issued.
The facts
- Issued
- Feb 6, 2020, 2:02 AM CST (08:02 UTC)
- Expired
- Feb 6, 2020, 3:30 AM CST
- In force
- 88 min
- Issued by
- the Storm Prediction Center
- Chance of a watch
- 80%
All 57 counties
Baldwin County, AL, Barbour County, AL, Bullock County, AL, Butler County, AL, Chambers County, AL, Coffee County, AL, Conecuh County, AL, Covington County, AL, Crenshaw County, AL, Dale County, AL, Elmore County, AL, Escambia County, AL, Geneva County, AL, Henry County, AL, Houston County, AL, Lee County, AL, Lowndes County, AL, Macon County, AL, Monroe County, AL, Montgomery County, AL, Pike County, AL, Randolph County, AL, Russell County, AL, Tallapoosa County, AL, Bay County, FL, Calhoun County, FL, Escambia County, FL, Gulf County, FL, Holmes County, FL, Jackson County, FL, Okaloosa County, FL, Santa Rosa County, FL, Walton County, FL, Washington County, FL, Calhoun County, GA, Chattahoochee County, GA, Clay County, GA, Coweta County, GA, Early County, GA, Harris County, GA, Heard County, GA, Marion County, GA, Meriwether County, GA, Miller County, GA, Muscogee County, GA, Pike County, GA, Quitman County, GA, Randolph County, GA, Schley County, GA, Seminole County, GA, Stewart County, GA, Talbot County, GA, Taylor County, GA, Terrell County, GA, Troup County, GA, Upson County, GA, Webster County, GA
The radar
The Ft Rucker radar (KEOX), 87 km from the middle of the area, began a volume at 08:06 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 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 00:00Z, 8.0 hours before the alert went out and 191 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
- 117 J/kg
- Mixed-layer CIN
- -125 J/kg
- Mixed-layer LCL
- 712 m above ground
- 0-6 km bulk shear
- 78 kt
- 0-1 km storm-relative helicity
- 370 m²/s²
- 0-3 km storm-relative helicity
- 402 m²/s²
- Significant tornado parameter
- 0.1
- Supercell composite
- 1.4
The text
As transmitted.
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</html>SPC that day
Everything else SPC issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Feb 5, 6:33 PM CST | Mesoscale Discussion | SPC | Jackson, Limestone, Madison | 117 min |
| Feb 5, 9:43 PM CST | Mesoscale Discussion | SPC | Choctaw, Greene, Hale, Marengo, Perry, Pickens and 2 more | 2 hr |
| Feb 5, 11:15 PM CST | Mesoscale Discussion | SPC | Bibb, Chilton, Choctaw, Clarke, Dallas, Greene and 9 more | 2 hr |
| Feb 5, 11:48 PM CST | Tornado Watch | SPC | Autauga, Baldwin, Bibb, Calhoun, Cherokee, Chilton and 18 more | 8 hr |
| Feb 6, 3:27 AM CST | Tornado Watch | SPC | Autauga, Baldwin, Barbour, Bullock, Butler, Chambers and 20 more | 9 hr |
| Feb 6, 4:33 AM CST | Mesoscale Discussion | SPC | Chilton, Clarke, Dallas, Monroe, Perry, Washington and 1 more | 87 min |
| Feb 6, 6:40 AM CST | Mesoscale Discussion | SPC | Chambers, Clay, Cleburne, Coosa, Elmore, Randolph and 2 more | 95 min |
| Feb 6, 10:00 AM CST | Mesoscale Discussion | SPC | Barbour, Bullock, Chambers, Coffee, Covington, Crenshaw and 9 more | 2 hr |
| Feb 6, 11:17 AM CST | Tornado Watch | SPC | Coffee, Dale, Geneva, Henry, Houston | 8 hr |
| Feb 6, 10:45 AM CST | Mesoscale Discussion | SPC | Gadsden, Hamilton, Jefferson, Leon, Liberty, Madison and 2 more | 90 min |
| Feb 6, 1:32 PM CST | Mesoscale Discussion | SPC | Bay, Calhoun, Columbia, Franklin, Gadsden, Gulf and 11 more | 58 min |
| Feb 6, 3:29 PM CST | Mesoscale Discussion | SPC | Baker, Calhoun, Columbia, Franklin, Gadsden, Gulf and 9 more | 2 hr |
| Feb 6, 4:30 PM CST | Tornado Watch | SPC | Alachua, Baker, Bradford, Citrus, Clay, Columbia and 11 more | 7 hr |
| Feb 6, 8:50 AM CST | Mesoscale Discussion | SPC | Clarke, Columbia, Elbert, Greene, Hart, Lincoln and 6 more | 55 min |
| Feb 6, 9:12 AM CST | Tornado Watch | SPC | Baldwin, Banks, Barrow, Clarke, Columbia, Elbert and 21 more | 7 hr |
Nearby
Mesoscale Discussions in Alabama, 2020Mesoscale Discussions in Georgia, 2020Mesoscale Discussions in Florida, 2020Every mesoscale discussion in 2020
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.