Alert archive / Georgia / Special Weather Statements in 2021
Special Weather Statement, NWS Atlanta, GA
NWS Atlanta, GA issued this special weather statement at Aug 27, 2021, 7:19 PM EDT for 6 counties in Georgia. It was in force for 11 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 27, 2021, 7:19 PM EDT (23:19 UTC)
- Expired
- Aug 27, 2021, 7:30 PM EDT
- In force
- 11 min
- Issued by
- NWS Atlanta, GA
- Wind
- 40
Counties Barrow County, GA, DeKalb County, GA, Fulton County, GA, Gwinnett County, GA, Rockdale County, GA, Walton County, GA
The radar
The Atlanta radar (KFFC), 83 km from the middle of the area, began a volume at 23:19 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, 11.3 hours before the alert went out and 78 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
- 528 J/kg
- Mixed-layer CIN
- -41 J/kg
- Mixed-layer LCL
- 850 m above ground
- 0-6 km bulk shear
- 11 kt
- 0-1 km storm-relative helicity
- 1 m²/s²
- 0-3 km storm-relative helicity
- -15 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
454
WWUS82 KFFC 272319
SPSFFC
Special Weather Statement
National Weather Service Peachtree City GA
719 PM EDT Fri Aug 27 2021
GAZ025-032>037-044>049-055-057-272330-
Morgan GA-Walton GA-Rockdale GA-Gwinnett GA-Newton GA-Henry GA-
South Fulton GA-Jackson GA-North Fulton GA-Barrow GA-Cobb GA-
Clayton GA-DeKalb GA-Clarke GA-Oconee GA-
719 PM EDT Fri Aug 27 2021
...STRONG THUNDERSTORMS WILL IMPACT PORTIONS OF DEKALB, GWINNETT,
WEST CENTRAL CLARKE, SOUTHWESTERN JACKSON, NORTH CENTRAL NEWTON,
ROCKDALE, NORTHWESTERN OCONEE, BARROW, NORTH CENTRAL MORGAN,
SOUTHEASTERN COBB, NORTHWESTERN HENRY, WALTON, CENTRAL FULTON AND
NORTHERN CLAYTON COUNTIES THROUGH 730 PM EDT...
At 718 PM EDT...a line of strong thunderstorms was along a line
extending from near Good Hope to Forest Park...and moving northwest
at 25 mph.
HAZARD...Up to 40 mph wind...frequent cloud to ground lightning and
heavy rain.
SOURCE...Radar indicated.
IMPACT...Expect minor damage to tree limbs and blowing around of
light...unsecured objects. Heavy rain may cause temporary
street flooding especially in poor drainage areas.
Some locations in the path of these storms include
Atlanta, Lawrenceville, Decatur, Conyers, Winder, Monroe, Jefferson,
Sandy Springs, Smyrna, Dunwoody, East Point, Duluth, Forest Park,
Snellville, Riverdale, College Park, Lilburn, Loganville, Chamblee
and Norcross.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
People outdoors should seek shelter immediately. If you can hear
thunder...you are close enough to be struck by lightning. Motorists
should slow down and be prepared for possible loss of control due to
hydroplaning.
LAT...LON 3414 8357 3376 8345 3354 8439 3385 8464
TIME...MOT...LOC 2318Z 156DEG 20KT 3382 8358 3363 8435
MAX HAIL SIZE...
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 26, 8:22 PM EDT | Special Weather Statement | FFC | Crawford, Peach | 23 min |
| Aug 26, 8:31 PM EDT | Special Weather Statement | FFC | Schley | 14 min |
| Aug 26, 8:38 PM EDT | Special Weather Statement | FFC | Macon | 22 min |
| Aug 26, 9:14 PM EDT | Special Weather Statement | FFC | Talbot, Taylor | 31 min |
| Aug 27, 2:50 AM EDT | Dense Fog Advisory | FFC | Fannin, Gilmer, Lumpkin, Towns, Union, White | 7 hr |
| Aug 27, 4:10 PM EDT | Special Weather Statement | FFC | Crisp | 20 min |
| Aug 27, 4:11 PM EDT | Special Weather Statement | FFC | Ben Hill | 34 min |
| Aug 27, 4:16 PM EDT | Special Weather Statement | FFC | Washington, Wilkinson | 29 min |
| Aug 27, 4:20 PM EDT | Special Weather Statement | FFC | Monroe | 25 min |
| Aug 27, 4:57 PM EDT | Special Weather Statement | FFC | Hancock, Putnam, Warren | 33 min |
| Aug 27, 4:59 PM EDT | Special Weather Statement | FFC | Webster | 31 min |
| Aug 27, 5:19 PM EDT | Special Weather Statement | FFC | Harris, Meriwether, Troup | 26 min |
| Aug 27, 5:39 PM EDT | Special Weather Statement | FFC | Butts, Jasper | 36 min |
| Aug 27, 5:55 PM EDT | Special Weather Statement | FFC | Muscogee | 35 min |
| Aug 27, 6:16 PM EDT | Special Weather Statement | FFC | Butts, Clarke, Henry, Jasper, Morgan, Newton and 3 more | 29 min |
| Aug 27, 6:39 PM EDT | Special Weather Statement | FFC | Muscogee | 36 min |
| Aug 27, 6:45 PM EDT | Special Weather Statement | FFC | Clarke, Clayton, Henry, Newton, Oconee, Rockdale and 1 more | 30 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.