Alert archive / Georgia / Severe Thunderstorm Warnings in 2018
Severe Thunderstorm Warning 142, NWS Atlanta, GA
NWS Atlanta, GA issued this severe thunderstorm warning at Jun 21, 2018, 2:31 PM EDT for Madison County, Oglethorpe County, Georgia. It was in force for 29 min. No storm report in the archive falls inside the area while it was in force.
The area
The outline as issued.
The facts
- Issued
- Jun 21, 2018, 2:31 PM EDT (18:31 UTC)
- Expired
- Jun 21, 2018, 3:00 PM EDT
- In force
- 29 min
- Issued by
- NWS Atlanta, GA
- Area
- Storm-based polygon
- Hail
- 1.0 in
- Wind
- 60.0 mph
Counties Madison County, GA, Oglethorpe County, GA
The radar
The Greer radar (KGSP), 122 km from the middle of the area, began a volume at 18:31 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
Peachtre/Fal Fld, GA (KFFC), launched 12:00Z, 6.5 hours before the alert went out and 152 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
- 354 J/kg
- Mixed-layer CIN
- -60 J/kg
- Mixed-layer LCL
- 1180 m above ground
- 0-6 km bulk shear
- 25 kt
- 0-1 km storm-relative helicity
- 44 m²/s²
- 0-3 km storm-relative helicity
- 90 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.4
The text
As transmitted.
905
WUUS52 KFFC 211831
SVRFFC
GAC195-221-211900-
/O.NEW.KFFC.SV.W.0142.180621T1831Z-180621T1900Z/
BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Peachtree City GA
231 PM EDT THU JUN 21 2018
The National Weather Service in Peachtree City has issued a
* Severe Thunderstorm Warning for...
Northern Oglethorpe County in northeastern Georgia...
Southeastern Madison County in northeastern Georgia...
* Until 300 PM EDT.
* At 231 PM EDT, a severe thunderstorm was located over Smithonia, or
8 miles south of Danielsville, moving east at 25 mph.
HAZARD...60 mph wind gusts and quarter size hail.
SOURCE...Radar indicated.
IMPACT...Hail damage to vehicles is expected. Expect wind damage
to roofs, siding, and trees.
* Locations impacted include...
Comer, Winterville, Colbert, Carlton, Hull, Diamond Hill,
Smithonia, Watson Mill Bridge State Park, Point Peter and Paoli.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
For your protection move to an interior room on the lowest floor of a
building.
Large hail and damaging winds and continuous cloud to ground
lightning is occurring with this storm. Move indoors immediately.
Lightning is one of nature's leading killers. Remember, if you can
hear thunder, you are close enough to be struck by lightning.
If you see wind damage...hail or flooding...wait until the storm has
passed...and then call the National Weather Service toll free
at 1 8 6 6 7 6 3 4 4 6 6 or tweet us your report at NWSATLANTA.
&&
LAT...LON 3397 8285 3396 8327 3398 8327 3400 8326
3401 8329 3407 8330 3412 8304 3411 8303
3410 8304 3408 8300 3405 8299 3403 8293
3401 8294 3401 8291
TIME...MOT...LOC 1831Z 264DEG 21KT 3401 8319
HAIL...1.00IN
WIND...60MPH
$$1 follow-up statement
629
WWUS52 KFFC 211851
SVSFFC
Severe Weather Statement
National Weather Service Peachtree City GA
251 PM EDT THU JUN 21 2018
GAC195-221-211900-
/O.EXP.KFFC.SV.W.0142.000000T0000Z-180621T1900Z/
Oglethorpe GA-Madison GA-
251 PM EDT THU JUN 21 2018
...THE SEVERE THUNDERSTORM WARNING FOR NORTHERN OGLETHORPE AND
SOUTHEASTERN MADISON COUNTIES WILL EXPIRE AT 300 PM EDT...
The storm which prompted the warning has weakened below severe
limits, and no longer poses an immediate threat to life or property.
Therefore, the warning will be allowed to expire.
LAT...LON 3397 8285 3396 8327 3398 8327 3400 8326
3401 8329 3407 8330 3412 8304 3411 8303
3410 8304 3408 8300 3405 8299 3403 8293
3401 8294 3401 8291
TIME...MOT...LOC 1850Z 264DEG 21KT 3402 8306
$$The office that day
Everything else NWS Atlanta, GA issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jun 20, 9:05 PM EDT | Special Weather Statement | FFC | Toombs | 25 min |
| Jun 21, 2:27 PM EDT | Special Weather Statement | FFC | Madison | 33 min |
| Jun 21, 3:34 PM EDT | Special Weather Statement | FFC | Coweta | 26 min |
| Jun 21, 3:38 PM EDT | Special Weather Statement | FFC | Gwinnett | 37 min |
| Jun 21, 3:57 PM EDT | Special Weather Statement | FFC | Morgan, Newton | 33 min |
| Jun 21, 4:04 PM EDT | Special Weather Statement | FFC | Fayette | 26 min |
| Jun 21, 4:46 PM EDT | Special Weather Statement | FFC | Madison | 14 min |
| Jun 21, 5:43 PM EDT | Special Weather Statement | FFC | Talbot | 32 min |
| Jun 21, 7:01 PM EDT | Special Weather Statement | FFC | Glascock | 14 min |
Nearby
Severe Thunderstorm Warnings in Georgia, 2018Every severe thunderstorm warning in 2018
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.