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, 5:20 PM EDT for DeKalb County, Georgia. It was in force for 25 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, 5:20 PM EDT (21:20 UTC)
- Expired
- Aug 7, 2021, 5:45 PM EDT
- In force
- 25 min
- Issued by
- NWS Atlanta, GA
- Hail
- 0.25 in
- Wind
- 40
County DeKalb County, GA
The radar
The Atlanta radar (KFFC), 62 km from the middle of the area, began a volume at 21:21 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, 9.3 hours before the alert went out and 59 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.
834
WWUS82 KFFC 072120
SPSFFC
Special Weather Statement
National Weather Service Peachtree City GA
520 PM EDT Sat Aug 7 2021
GAZ033-045-072145-
North Fulton GA-DeKalb GA-
520 PM EDT Sat Aug 7 2021
...A STRONG THUNDERSTORM WILL IMPACT PORTIONS OF WESTERN DEKALB,
SOUTHEASTERN COBB, SOUTHWESTERN GWINNETT AND CENTRAL FULTON COUNTIES
THROUGH 545 PM EDT...
At 520 PM EDT...a strong thunderstorm was over Chastain Memorial
Park, or 8 miles northwest of Decatur...moving east at 15 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
Atlanta, Decatur, Sandy Springs, Dunwoody, Chamblee, Doraville,
Clarkston, Stone Mountain, Avondale Estates, Pine Lake, Tucker,
Belvedere Park, North Decatur, North Atlanta, North Druid Hills,
Midtown, Candler-Mcafee, Druid Hills, Piedmont Park and Brookhaven.
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 3383 8446 3385 8446 3388 8444 3392 8444
3396 8439 3398 8438 3397 8426 3396 8427
3396 8428 3392 8426 3387 8420 3385 8416
3383 8413 3368 8420 3382 8448
TIME...MOT...LOC 2120Z 290DEG 12KT 3388 8437
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, 5:22 PM EDT | Special Weather Statement | FFC | Gwinnett | 23 min |
| Aug 7, 6:01 PM EDT | Special Weather Statement | FFC | Gwinnett | 29 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.