Alert archive / Georgia / Severe Thunderstorm Warnings in 2017
Severe Thunderstorm Warning 178, NWS Atlanta, GA
NWS Atlanta, GA issued this severe thunderstorm warning at May 18, 2017, 3:21 PM EDT for Hall County, Georgia. It was in force for 28 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
- May 18, 2017, 3:21 PM EDT (19:21 UTC)
- Expired
- May 18, 2017, 3:49 PM EDT
- In force
- 28 min
- Issued by
- NWS Atlanta, GA
- Area
- Storm-based polygon
- Hail
- 0.75 in
- Wind
- 60.0 mph
County Hall County, GA
The radar
The Atlanta radar (KFFC), 140 km from the middle of the area, began a volume at 19:22 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, 7.4 hours before the alert went out and 136 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
- 114 J/kg
- Mixed-layer CIN
- -215 J/kg
- Mixed-layer LCL
- 1009 m above ground
- 0-6 km bulk shear
- 24 kt
- 0-1 km storm-relative helicity
- 71 m²/s²
- 0-3 km storm-relative helicity
- 109 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
381
WUUS52 KFFC 181921
SVRFFC
GAC139-182000-
/O.NEW.KFFC.SV.W.0178.170518T1921Z-170518T2000Z/
BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Peachtree City GA
321 PM EDT THU MAY 18 2017
The National Weather Service in Peachtree City has issued a
* Severe Thunderstorm Warning for...
Eastern Hall County in north central Georgia...
* Until 400 PM EDT
* At 321 PM EDT, a severe thunderstorm was located near Gainesville,
moving northeast at 10 mph.
HAZARD...60 mph wind gusts.
SOURCE...Radar indicated.
IMPACT...Expect damage to roofs, siding, and trees.
* Locations impacted include...
Gainesville, Lula, Gillsville and Candler.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
For your protection move to an interior room on the lowest floor of a
building.
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 3443 8362 3442 8362 3442 8364 3440 8366
3436 8367 3435 8365 3432 8365 3430 8362
3418 8376 3431 8388 3449 8366 3449 8365
TIME...MOT...LOC 1921Z 235DEG 7KT 3429 8375
HAIL...<.75IN
WIND...60MPH
$$1 follow-up statement
574
WWUS52 KFFC 181949
SVSFFC
Severe Weather Statement
National Weather Service Peachtree City GA
349 PM EDT THU MAY 18 2017
GAC139-181959-
/O.CAN.KFFC.SV.W.0178.000000T0000Z-170518T2000Z/
Hall GA-
349 PM EDT THU MAY 18 2017
...THE SEVERE THUNDERSTORM WARNING FOR EASTERN HALL COUNTY IS
CANCELLED...
The storm which prompted the warning has weakened below severe
limits, and no longer poses an immediate threat to life or property.
Therefore the warning has been cancelled.
LAT...LON 3443 8362 3442 8362 3442 8364 3440 8366
3436 8367 3435 8365 3432 8365 3430 8362
3418 8376 3431 8388 3449 8366 3449 8365
TIME...MOT...LOC 1947Z 235DEG 7KT 3432 8370
$$The office that day
Everything else NWS Atlanta, GA issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| May 18, 3:14 PM EDT | Special Weather Statement | FFC | Hall | 31 min |
| May 18, 4:39 PM EDT | Severe Thunderstorm Warning | FFC | Banks, Madison | 32 min |
| May 18, 5:58 PM EDT | Special Weather Statement | FFC | Forsyth | 32 min |
| May 18, 6:10 PM EDT | Special Weather Statement | FFC | Cherokee | 35 min |
Nearby
Severe Thunderstorm Warnings in Georgia, 2017Every severe thunderstorm warning in 2017
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.