Alert archive / Georgia / Severe Thunderstorm Watches in 2021
Severe Thunderstorm Watch 130
The Storm Prediction Center issued this severe thunderstorm watch at May 3, 2021, 3:23 PM EDT for 61 counties in Georgia. It was in force for 6 hr.
The area
The outline as issued.
The facts
- Issued
- May 3, 2021, 3:23 PM EDT (19:23 UTC)
- Expired
- May 3, 2021, 9:00 PM EDT
- In force
- 6 hr
- Issued by
- the Storm Prediction Center
- Largest hail expected
- 1.5 in
- Strongest gust expected
- 55 kt
All 61 counties
Baldwin County, GA, Barrow County, GA, Bibb County, GA, Butts County, GA, Carroll County, GA, Chattahoochee County, GA, Clarke County, GA, Clayton County, GA, Cobb County, GA, Coweta County, GA, Crawford County, GA, DeKalb County, GA, Dooly County, GA, Douglas County, GA, Fayette County, GA, Fulton County, GA, Glascock County, GA, Greene County, GA, Gwinnett County, GA, Hancock County, GA, Haralson County, GA, Harris County, GA, Heard County, GA, Henry County, GA, Houston County, GA, Jasper County, GA, Jefferson County, GA, Johnson County, GA, Jones County, GA, Lamar County, GA, Macon County, GA, Marion County, GA, Meriwether County, GA, Monroe County, GA, Morgan County, GA, Muscogee County, GA, Newton County, GA, Oconee County, GA, Oglethorpe County, GA, Paulding County, GA, Peach County, GA, Pike County, GA, Polk County, GA, Putnam County, GA, Rockdale County, GA, Schley County, GA, Spalding County, GA, Stewart County, GA, Sumter County, GA, Talbot County, GA, Taliaferro County, GA, Taylor County, GA, Troup County, GA, Twiggs County, GA, Upson County, GA, Walton County, GA, Warren County, GA, Washington County, GA, Webster County, GA, Wilkes County, GA, Wilkinson County, GA
The radar
The Robins AFB radar (KJGX), 78 km from the middle of the area, began a volume at 19:27 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
- 30%
- One or more gusts of 65 knots or more
- 10%
- 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
- 50%
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 |
|---|---|---|---|---|
| May 3, 3:41 PM EDT | Severe Thunderstorm Warning | FFC | Glascock, Jefferson, Washington | 34 min |
| May 3, 3:47 PM EDT | Severe Thunderstorm Warning | FFC | Wilkes | 13 min |
| May 3, 4:06 PM EDT | Severe Thunderstorm Warning | FFC | Jefferson | 24 min |
| May 3, 4:44 PM EDT | Severe Thunderstorm Warning | FFC | Twiggs, Wilkinson | 46 min |
| May 3, 4:55 PM EDT | Severe Thunderstorm Warning | FFC | Glascock, Hancock, Warren, Washington | 29 min |
| May 3, 5:21 PM EDT | Severe Thunderstorm Warning | FFC | Baldwin, Washington, Wilkinson | 24 min |
| May 3, 5:46 PM EDT | Severe Thunderstorm Warning | FFC | Glascock, Jefferson, Washington | 44 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 12:00Z, 7.4 hours before the alert went out and 83 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
- 674 J/kg
- Mixed-layer CIN
- -54 J/kg
- Mixed-layer LCL
- 671 m above ground
- 0-6 km bulk shear
- 42 kt
- 0-1 km storm-relative helicity
- 207 m²/s²
- 0-3 km storm-relative helicity
- 272 m²/s²
- Significant tornado parameter
- 0.8
- Supercell composite
- 4.8
The text
As transmitted.
593 WWUS20 KWNS 031919 SEL0 SPC WW 031919 GAZ000-040100- URGENT - IMMEDIATE BROADCAST REQUESTED Severe Thunderstorm Watch Number 130 NWS Storm Prediction Center Norman OK 320 PM EDT Mon May 3 2021 The NWS Storm Prediction Center has issued a * Severe Thunderstorm Watch for portions of Western and central Georgia * Effective this Monday afternoon and evening from 320 PM until 900 PM EDT. * Primary threats include... Isolated damaging wind gusts to 65 mph possible Isolated large hail events to 1.5 inches in diameter possible A tornado or two possible SUMMARY...Leading supercell in east-central Georgia will pose the greatest near-term severe threat. A few severe storms may yet develop farther west with a primary threat for isolated damaging winds and large hail. The severe thunderstorm watch area is approximately along and 70 statute miles east and west of a line from 20 miles west northwest of Athens GA to 40 miles southwest of Macon GA. For a complete depiction of the watch see the associated watch outline update (WOUS64 KWNS WOU0). PRECAUTIONARY/PREPAREDNESS ACTIONS... REMEMBER...A Severe Thunderstorm Watch means conditions are favorable for severe thunderstorms in and close to the watch area. Persons in these areas should be on the lookout for threatening weather conditions and listen for later statements and possible warnings. Severe thunderstorms can and occasionally do produce tornadoes. && OTHER WATCH INFORMATION...This severe thunderstorm watch replaces tornado watch number 127. Watch number 127 will not be in effect after 320 PM EDT. CONTINUE...WW 128...WW 129... AVIATION...A few severe thunderstorms with hail surface and aloft to 1.5 inches. Extreme turbulence and surface wind gusts to 55 knots. A few cumulonimbi with maximum tops to 450. Mean storm motion vector 26025. ...Grams
SPC that day
Everything else SPC issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| May 3, 12:45 AM EDT | Mesoscale Discussion | SPC | Colbert, Franklin, Marion | 2 hr |
| May 3, 10:29 AM EDT | Tornado Watch | SPC | Bullock, Chambers, Clay, Cleburne, Coosa, Elmore and 6 more | 5 hr |
| May 3, 11:38 AM EDT | Mesoscale Discussion | SPC | Butler, Clarke, Conecuh, Covington, Crenshaw, Dallas and 7 more | 97 min |
| May 3, 12:47 PM EDT | Severe Thunderstorm Watch | SPC | Autauga, Barbour, Bibb, Blount, Bullock, Butler and 46 more | 10 hr |
| May 3, 5:00 PM EDT | Mesoscale Discussion | SPC | Autauga, Barbour, Bibb, Bullock, Butler, Calhoun and 38 more | 90 min |
| May 3, 10:04 AM EDT | Mesoscale Discussion | SPC | Barrow, Butts, Carroll, Clayton, Cobb, Coweta and 15 more | 86 min |
| May 3, 11:20 AM EDT | Mesoscale Discussion | SPC | Clayton, DeKalb, Gwinnett, Rockdale | 55 min |
| May 3, 1:03 PM EDT | Mesoscale Discussion | SPC | Barrow, Butts, Clarke, Clayton, Cobb, Columbia and 30 more | 87 min |
| May 3, 1:25 PM EDT | Tornado Watch | SPC | Burke, Columbia, Elbert, Lincoln, McDuffie, Richmond | 6 hr |
| May 3, 3:05 PM EDT | Mesoscale Discussion | SPC | Baldwin, Barrow, Bibb, Butts, Carroll, Chattahoochee and 36 more | 55 min |
| May 3, 4:26 PM EDT | Mesoscale Discussion | SPC | Richmond | 94 min |
Nearby
Severe Thunderstorm Watches in Georgia, 2021Every severe thunderstorm watch in 2021
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.