Alert archive / Georgia / Severe Thunderstorm Watches in 2019
Severe Thunderstorm Watch 85
The Storm Prediction Center issued this severe thunderstorm watch at Apr 18, 2019, 7:22 PM CDT for 21 counties in Alabama; 40 counties in Georgia. It was in force for 7 hr.
The area
The outline as issued.
The facts
- Issued
- Apr 18, 2019, 7:22 PM CDT (00:22 UTC)
- Expired
- Apr 19, 2019, 2:00 AM CDT
- In force
- 7 hr
- Issued by
- the Storm Prediction Center
- Largest hail expected
- 1 in
- Strongest gust expected
- 60 kt
All 61 counties
Barbour County, AL, Bullock County, AL, Calhoun County, AL, Chambers County, AL, Cherokee County, AL, Clay County, AL, Cleburne County, AL, Cullman County, AL, DeKalb County, AL, Etowah County, AL, Jackson County, AL, Lawrence County, AL, Lee County, AL, Limestone County, AL, Macon County, AL, Madison County, AL, Marshall County, AL, Morgan County, AL, Randolph County, AL, Russell County, AL, Tallapoosa County, AL, Bartow County, GA, Butts County, GA, Carroll County, GA, Chattahoochee County, GA, Chattooga County, GA, Cherokee County, GA, Clayton County, GA, Cobb County, GA, Coweta County, GA, Crawford County, GA, Dade County, GA, DeKalb County, GA, Douglas County, GA, Fayette County, GA, Floyd County, GA, Fulton County, GA, Gordon County, GA, Haralson County, GA, Harris County, GA, Heard County, GA, Henry County, GA, Lamar County, GA, Macon County, GA, Marion County, GA, Meriwether County, GA, Monroe County, GA, Muscogee County, GA, Paulding County, GA, Pike County, GA, Polk County, GA, Schley County, GA, Spalding County, GA, Stewart County, GA, Sumter County, GA, Talbot County, GA, Taylor County, GA, Troup County, GA, Upson County, GA, Walker County, GA, Webster County, GA
The radar
The Atlanta radar (KFFC), 72 km from the middle of the area, began a volume at 00:25 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.
What SPC expected
The probabilities SPC published with the watch, for the watch area over its life.
- Two or more tornadoes
- 20%
- One or more EF2 to EF5 tornadoes
- 5%
- Ten or more severe wind reports
- 60%
- One or more gusts of 65 knots or more
- 20%
- Ten or more severe hail reports
- 20%
- One or more hailstones of 2 inches or more
- 10%
- Six or more combined severe hail and wind reports
- 80%
Warnings issued inside it
7 tornado, severe thunderstorm and flash flood warnings for its counties while it was in force.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Apr 18, 7:34 PM CDT | Severe Thunderstorm Warning | HUN | Cullman, Lawrence, Morgan | 26 min |
| Apr 18, 7:50 PM CDT | Severe Thunderstorm Warning | HUN | Lawrence | 32 min |
| Apr 18, 7:55 PM CDT | Severe Thunderstorm Warning | HUN | Cullman, Morgan | 52 min |
| Apr 18, 8:02 PM CDT | Severe Thunderstorm Warning | BMX | Etowah | 60 min |
| Apr 18, 8:09 PM CDT | Severe Thunderstorm Warning | BMX | Calhoun | 66 min |
| Apr 18, 8:42 PM CDT | Severe Thunderstorm Warning | HUN | Limestone, Madison | 33 min |
| Apr 18, 9:20 PM CDT | Severe Thunderstorm Warning | BMX | Bullock, Montgomery, Pike | 35 min |
Discussions around it
SPC mesoscale discussions over the same counties from four hours before the watch to its end.
The nearest sounding before it
Peachtre/Fal Fld, GA (KFFC), launched 00:00Z, 0.4 hours before the alert went out and 77 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
- 10 J/kg
- Mixed-layer CIN
- -12 J/kg
- Mixed-layer LCL
- 1569 m above ground
- 0-6 km bulk shear
- 57 kt
- 0-1 km storm-relative helicity
- 148 m²/s²
- 0-3 km storm-relative helicity
- 200 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
SPC that day
Everything else SPC issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Apr 18, 8:54 PM CDT | Mesoscale Discussion | SPC | Coffee, Dale, Geneva, Henry, Houston | 96 min |
| Apr 18, 9:29 PM CDT | Mesoscale Discussion | SPC | Bullock, Chambers, Lee, Pike, Russell | 91 min |
| Apr 18, 11:44 PM CDT | Mesoscale Discussion | SPC | Butler, Coffee, Conecuh, Covington, Crenshaw, Dale and 4 more | 2 hr |
| Apr 19, 12:33 AM CDT | Tornado Watch | SPC | Barbour, Bullock, Butler, Chambers, Coffee, Conecuh and 13 more | 9 hr |
| Apr 19, 2:42 AM CDT | Mesoscale Discussion | SPC | Barbour, Bullock, Chambers, Coffee, Covington, Crenshaw and 8 more | 2 hr |
| Apr 19, 5:28 AM CDT | Mesoscale Discussion | SPC | Barbour, Dale, Henry, Houston, Russell | 2 hr |
| Apr 19, 8:09 AM CDT | Mesoscale Discussion | SPC | Atkinson, Bacon, Baker, Baldwin, Barrow, Ben Hill and 76 more | 2 hr |
| Apr 19, 9:06 AM CDT | Mesoscale Discussion | SPC | Baldwin, Bibb, Bleckley, Columbia, Elbert, Glascock and 21 more | 84 min |
| Apr 19, 9:13 AM CDT | Tornado Watch | SPC | Appling, Atkinson, Bacon, Brantley, Camden, Charlton and 8 more | 6 hr |
| Apr 19, 9:31 AM CDT | Tornado Watch | SPC | Elbert, Hart | 9 hr |
| Apr 19, 9:44 AM CDT | Tornado Watch | SPC | Baldwin, Bryan, Bulloch, Burke, Candler, Chatham and 29 more | 5 hr |
| Apr 19, 12:19 PM CDT | Mesoscale Discussion | SPC | Bryan, Bulloch, Burke, Candler, Chatham, Columbia and 22 more | 86 min |
Nearby
Severe Thunderstorm Watches in Georgia, 2019Severe Thunderstorm Watches in Alabama, 2019Every severe thunderstorm watch in 2019
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.