Alert archive / Georgia / Severe Thunderstorm Warnings in 2017
Severe Thunderstorm Warning 296, NWS Atlanta, GA
NWS Atlanta, GA issued this severe thunderstorm warning at Jul 20, 2017, 11:04 PM EDT for Jefferson County, Georgia. It was in force for 26 min. 1 report came from inside the area while it was in force.
The area
The outline as issued, with what was reported inside it.
The facts
- Issued
- Jul 20, 2017, 11:04 PM EDT (03:04 UTC)
- Expired
- Jul 20, 2017, 11:30 PM EDT
- In force
- 26 min
- Issued by
- NWS Atlanta, GA
- Area
- Storm-based polygon
- Hail
- 1.0 in
- Wind
- 60.0 mph
County Jefferson County, GA
The radar
The Robins AFB radar (KJGX), 118 km from the middle of the area, began a volume at 03:05 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 was reported inside it
| Time | Report | Where | Remark |
|---|---|---|---|
| Jul 20, 11:15 PM EDT | TSTM WND DMG | Matthews, GA | NUMEROUS LARGE LIMBS DOWN SOUTHWEST OF KEYS. |
Local storm reports filed while the alert was in force, from inside its polygon or its counties.
The nearest sounding before it
Peachtre/Fal Fld, GA (KFFC), launched 00:00Z, 3.1 hours before the alert went out and 207 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
- 1344 J/kg
- Mixed-layer CIN
- -11 J/kg
- Mixed-layer LCL
- 1543 m above ground
- 0-6 km bulk shear
- 19 kt
- 0-1 km storm-relative helicity
- 64 m²/s²
- 0-3 km storm-relative helicity
- 70 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
688
WUUS52 KFFC 210304
SVRFFC
GAC163-210330-
/O.NEW.KFFC.SV.W.0296.170721T0304Z-170721T0330Z/
BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Peachtree City GA
1104 PM EDT THU JUL 20 2017
The National Weather Service in Peachtree City has issued a
* Severe Thunderstorm Warning for...
Northeastern Jefferson County in east central Georgia...
* Until 1130 PM EDT
* At 1103 PM EDT, a severe thunderstorm was located over Keysville,
or 15 miles southwest of Fort Gordon, moving west at 5 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...
Matthews and Stellaville.
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 3321 8225 3317 8226 3316 8235 3329 8234
3328 8230 3327 8228 3327 8226 3323 8224
3323 8223
TIME...MOT...LOC 0303Z 099DEG 6KT 3321 8225
HAIL...1.00IN
WIND...60MPH
$$The office that day
Everything else NWS Atlanta, GA issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 20, 10:46 PM EDT | Special Weather Statement | FFC | Jefferson | 29 min |
| Jul 20, 11:29 PM EDT | Special Weather Statement | FFC | Richmond | 31 min |
| Jul 21, 2:02 PM EDT | Special Weather Statement | FFC | Marion | 28 min |
| Jul 21, 2:30 PM EDT | Special Weather Statement | FFC | Towns | 30 min |
| Jul 21, 2:44 PM EDT | Heat Advisory | FFC | Baldwin, Bibb, Bleckley, Chattahoochee, Crawford, Crisp and 31 more | 27 hr |
| Jul 21, 3:29 PM EDT | Special Weather Statement | FFC | Montgomery, Wheeler | 31 min |
| Jul 21, 3:43 PM EDT | Special Weather Statement | FFC | Telfair | 32 min |
| Jul 21, 3:51 PM EDT | Special Weather Statement | FFC | Emanuel | 39 min |
| Jul 21, 3:53 PM EDT | Special Weather Statement | FFC | Union | 37 min |
| Jul 21, 3:57 PM EDT | Special Weather Statement | FFC | Wheeler | 33 min |
| Jul 21, 4:00 PM EDT | Special Weather Statement | FFC | Dodge | 45 min |
| Jul 21, 4:24 PM EDT | Special Weather Statement | FFC | Pickens | 36 min |
| Jul 21, 4:26 PM EDT | Special Weather Statement | FFC | Lumpkin | 34 min |
| Jul 21, 5:58 PM EDT | Special Weather Statement | FFC | Macon | 32 min |
| Jul 21, 6:03 PM EDT | Special Weather Statement | FFC | Crisp | 27 min |
| Jul 21, 6:11 PM EDT | Special Weather Statement | FFC | Toombs | 49 min |
| Jul 21, 6:14 PM EDT | Special Weather Statement | FFC | Stewart, Webster | 31 min |
| Jul 21, 6:15 PM EDT | Special Weather Statement | FFC | Wilcox | 30 min |
| Jul 21, 6:25 PM EDT | Special Weather Statement | FFC | Crisp | 35 min |
| Jul 21, 6:49 PM EDT | Special Weather Statement | FFC | Dooly | 26 min |
| Jul 21, 6:53 PM EDT | Special Weather Statement | FFC | Webster | 37 min |
| Jul 21, 7:04 PM EDT | Special Weather Statement | FFC | Washington | 26 min |
| Jul 21, 7:08 PM EDT | Special Weather Statement | FFC | Putnam | 37 min |
| Jul 21, 7:12 PM EDT | Special Weather Statement | FFC | Macon | 33 min |
| Jul 21, 7:41 PM EDT | Special Weather Statement | FFC | Macon | 34 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; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.