Alert archive / Georgia / Special Weather Statements in 2021
Special Weather Statement, NWS Atlanta, GA
NWS Atlanta, GA issued this special weather statement at Aug 7, 2021, 6:01 PM EDT for Gwinnett 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
- Aug 7, 2021, 6:01 PM EDT (22:01 UTC)
- Expired
- Aug 7, 2021, 6:30 PM EDT
- In force
- 29 min
- Issued by
- NWS Atlanta, GA
- Hail
- 0.25 in
- Wind
- 40
County Gwinnett County, GA
The radar
The Atlanta radar (KFFC), 85 km from the middle of the area, began a volume at 22:02 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, 10.0 hours before the alert went out and 81 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
- 848 J/kg
- Mixed-layer CIN
- -15 J/kg
- Mixed-layer LCL
- 799 m above ground
- 0-6 km bulk shear
- 28 kt
- 0-1 km storm-relative helicity
- -5 m²/s²
- 0-3 km storm-relative helicity
- 20 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- -0.2
The text
As transmitted.
050
WWUS82 KFFC 072201
SPSFFC
Special Weather Statement
National Weather Service Peachtree City GA
601 PM EDT Sat Aug 7 2021
GAZ034-072230-
Gwinnett GA-
601 PM EDT Sat Aug 7 2021
...A STRONG THUNDERSTORM WILL IMPACT PORTIONS OF SOUTHWESTERN BARROW
AND CENTRAL GWINNETT COUNTIES THROUGH 630 PM EDT...
At 600 PM EDT...a strong thunderstorm was near Lawrenceville...moving
southeast at 10 mph.
HAZARD...Up to 40 mph wind...pea sized hail and frequent cloud to
ground lightning.
SOURCE...Radar indicated.
IMPACT...Expect minor damage to tree limbs and blowing around of
light...unsecured objects.
Some locations in the path of this storm include
Lawrenceville, Snellville, Suwanee, Lilburn, Dacula, Grayson,
Mountain Park, Harbin and Rosebud.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
People outdoors should seek shelter immediately. If you can hear
thunder...you are close enough to be struck by lightning.
LAT...LON 3398 8383 3393 8380 3377 8401 3389 8417
3404 8406
TIME...MOT...LOC 2200Z 299DEG 10KT 3394 8405
MAX HAIL SIZE...0.25IN
MAX WIND GUST...40MPH
$$The office that day
Everything else NWS Atlanta, GA issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 6, 9:15 PM EDT | Special Weather Statement | FFC | Fannin | 30 min |
| Aug 7, 12:58 PM EDT | Special Weather Statement | FFC | Lumpkin | 32 min |
| Aug 7, 1:52 PM EDT | Special Weather Statement | FFC | Chattooga | 23 min |
| Aug 7, 2:11 PM EDT | Special Weather Statement | FFC | Whitfield | 34 min |
| Aug 7, 2:27 PM EDT | Special Weather Statement | FFC | Fulton | 33 min |
| Aug 7, 2:48 PM EDT | Special Weather Statement | FFC | Gilmer, Murray | 27 min |
| Aug 7, 2:51 PM EDT | Special Weather Statement | FFC | Floyd | 24 min |
| Aug 7, 3:04 PM EDT | Special Weather Statement | FFC | Carroll | 26 min |
| Aug 7, 3:18 PM EDT | Special Weather Statement | FFC | Gilmer | 27 min |
| Aug 7, 3:19 PM EDT | Special Weather Statement | FFC | Floyd | 26 min |
| Aug 7, 3:27 PM EDT | Special Weather Statement | FFC | Fannin | 33 min |
| Aug 7, 3:28 PM EDT | Special Weather Statement | FFC | Union | 32 min |
| Aug 7, 3:39 PM EDT | Special Weather Statement | FFC | Dawson | 36 min |
| Aug 7, 3:40 PM EDT | Special Weather Statement | FFC | Towns | 35 min |
| Aug 7, 3:41 PM EDT | Special Weather Statement | FFC | Heard | 34 min |
| Aug 7, 3:51 PM EDT | Special Weather Statement | FFC | Paulding | 24 min |
| Aug 7, 4:18 PM EDT | Special Weather Statement | FFC | Paulding | 27 min |
| Aug 7, 4:41 PM EDT | Special Weather Statement | FFC | Forsyth | 34 min |
| Aug 7, 4:45 PM EDT | Special Weather Statement | FFC | Henry | 30 min |
| Aug 7, 4:53 PM EDT | Special Weather Statement | FFC | Cobb | 37 min |
| Aug 7, 4:57 PM EDT | Special Weather Statement | FFC | Pike | 33 min |
| Aug 7, 5:12 PM EDT | Special Weather Statement | FFC | Oconee | 33 min |
| Aug 7, 5:20 PM EDT | Special Weather Statement | FFC | DeKalb | 25 min |
| Aug 7, 5:22 PM EDT | Special Weather Statement | FFC | Gwinnett | 23 min |
| Aug 7, 6:28 PM EDT | Special Weather Statement | FFC | Harris | 32 min |
| Aug 7, 6:36 PM EDT | Special Weather Statement | FFC | Monroe | 24 min |
| Aug 7, 7:04 PM EDT | Special Weather Statement | FFC | Monroe | 26 min |
| Aug 7, 7:05 PM EDT | Special Weather Statement | FFC | Hancock | 25 min |
| Aug 7, 7:09 PM EDT | Special Weather Statement | FFC | Crawford | 36 min |
| Aug 7, 7:34 PM EDT | Special Weather Statement | FFC | Warren | 26 min |
| Aug 7, 7:58 PM EDT | Special Weather Statement | FFC | Glascock | 32 min |
Nearby
Special Weather Statements in Georgia, 2021Every special weather statement 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.