Alert archive / Georgia / Severe Thunderstorm Warnings in 2021

Severe Thunderstorm Warning 140, NWS Atlanta, GA

August 30, 20214 counties in Georgia

NWS Atlanta, GA issued this severe thunderstorm warning at Aug 30, 2021, 5:29 PM EDT for 4 counties in Georgia. It was in force for 31 min. 3 reports 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
Aug 30, 2021, 5:29 PM EDT (21:29 UTC)
Expired
Aug 30, 2021, 6:00 PM EDT
In force
31 min
Issued by
NWS Atlanta, GA
Area
Storm-based polygon
Hail
0.75 in
Wind
60.0 mph

Counties Dawson County, GA, Fannin County, GA, Gilmer County, GA, Pickens County, GA

The radar

The Northeast Alabama radar (KHTX), 152 km from the middle of the area, began a volume at 21:34 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

TimeReportWhereRemark
Aug 30, 5:48 PM EDTTSTM WND DMG2 Wsw Ellijay, GATREE DOWNED ONTO POWER LINES AT LEGION RD AND NEWPORT DR
Aug 30, 5:51 PM EDTTSTM WND DMG1 Ene Roy, GATREE DOWNED ONTO POWER LINES ON JONES RD
Aug 30, 6:00 PM EDTTSTM WND DMGCherry Log, GATREE DOWNED ON CHERRY LOG ST

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 12:00Z, 9.5 hours before the alert went out and 153 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.

Skew-T log-pSkew-T log-p diagram, Peachtre/Fal Fld, GA at 12:00Z on 2021-08-30Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1025 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Peachtre/Fal Fld, GA at 12:00Z on 2021-08-30The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 24 square meters per square second.1939Sfc1 km3 km6 km9 kmRMLM
The wind turning with height, colored by layer: ground to 1 km, 1 to 3 km, 3 to 6 km, 6 to 10 km.
Mixed-layer CAPE
1025 J/kg
Mixed-layer CIN
-29 J/kg
Mixed-layer LCL
710 m above ground
0-6 km bulk shear
14 kt
0-1 km storm-relative helicity
24 m²/s²
0-3 km storm-relative helicity
38 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

052 
WUUS52 KFFC 302129
SVRFFC
GAC085-111-123-227-302200-
/O.NEW.KFFC.SV.W.0140.210830T2129Z-210830T2200Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Peachtree City GA
529 PM EDT Mon Aug 30 2021

The National Weather Service in Peachtree City has issued a

* Severe Thunderstorm Warning for...
  Gilmer County in north central Georgia...
  Western Dawson County in north central Georgia...
  Northern Pickens County in north central Georgia...
  Central Fannin County in north central Georgia...

* Until 600 PM EDT.

* At 529 PM EDT, a severe thunderstorm was located near Talona, or
  near Ellijay, moving north at 40 mph.

  HAZARD...60 mph wind gusts.

  SOURCE...Radar indicated.

  IMPACT...Expect damage to roofs, siding, and trees.

* Locations impacted include...
  Jasper, Ellijay, Blue Ridge, East Ellijay, Talking Rock, Sequoyah
  Lake, Talona, Dial, Cartecay, Pisgah, Blaine, Lake Tamarack, Cherry
  Log, Mountaintown, Roy and Roundtop.

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 3481 8419 3447 8435 3450 8457 3479 8461
      3482 8458 3484 8460 3490 8440
TIME...MOT...LOC 2129Z 187DEG 33KT 3460 8445 

HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...<.75 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...60 MPH

$$
2 follow-up statements
948 
WWUS52 KFFC 302150
SVSFFC

Severe Weather Statement
National Weather Service Peachtree City GA
550 PM EDT Mon Aug 30 2021

GAC085-227-302200-
/O.CAN.KFFC.SV.W.0140.000000T0000Z-210830T2200Z/
Dawson GA-Pickens GA-
550 PM EDT Mon Aug 30 2021

...THE SEVERE THUNDERSTORM WARNING FOR WESTERN DAWSON AND NORTHERN
PICKENS COUNTIES IS CANCELLED...
    
The severe thunderstorm which prompted the warning has moved out of 
the warned area. Therefore, the warning has been cancelled.

LAT...LON 3481 8419 3458 8430 3458 8433 3456 8435
      3456 8437 3455 8437 3455 8442 3456 8443
      3456 8449 3479 8461 3482 8458 3484 8460
      3485 8458 3490 8440
TIME...MOT...LOC 2150Z 187DEG 33KT 3480 8442 

$$

GAC111-123-302200-
/O.CON.KFFC.SV.W.0140.000000T0000Z-210830T2200Z/
Gilmer GA-Fannin GA-
550 PM EDT Mon Aug 30 2021

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 600 PM EDT
FOR GILMER AND CENTRAL FANNIN COUNTIES...

At 550 PM EDT, a severe thunderstorm was located over Cherry Log, or
7 miles southwest of Blue Ridge, moving north at 40 mph.

HAZARD...60 mph wind gusts.

SOURCE...Radar indicated.

IMPACT...Expect damage to roofs, siding, and trees.

Locations impacted include...
Ellijay, Blue Ridge, East Ellijay, Dial, Cartecay, Pisgah, Cherry
Log, Mountaintown and Roy.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

For your protection move to an interior room on the lowest floor of a
building.

&&

LAT...LON 3481 8419 3458 8430 3458 8433 3456 8435
      3456 8437 3455 8437 3455 8442 3456 8443
      3456 8449 3479 8461 3482 8458 3484 8460
      3485 8458 3490 8440
TIME...MOT...LOC 2150Z 187DEG 33KT 3480 8442 

HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...<.75 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...60 MPH

$$
883 
WWUS52 KFFC 302201
SVSFFC

Severe Weather Statement
National Weather Service Peachtree City GA
601 PM EDT Mon Aug 30 2021

GAC111-123-302211-
/O.EXP.KFFC.SV.W.0140.000000T0000Z-210830T2200Z/
Gilmer GA-Fannin GA-
601 PM EDT Mon Aug 30 2021

...THE SEVERE THUNDERSTORM WARNING FOR GILMER AND CENTRAL FANNIN
COUNTIES HAS EXPIRED...
                
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 allowed to expire. However gusty 
winds are still possible with this thunderstorm.

To report severe weather, contact your nearest law enforcement
agency. They will relay your report to the National Weather Service
Peachtree City.

LAT...LON 3481 8419 3458 8430 3458 8433 3456 8435
      3456 8437 3455 8437 3455 8442 3456 8443
      3456 8449 3479 8461 3482 8458 3484 8460
      3485 8458 3490 8440
TIME...MOT...LOC 2201Z 187DEG 33KT 3488 8441 

$$

The office that day

Everything else NWS Atlanta, GA issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Aug 30, 4:19 AM EDTFlood WatchFFCBartow, Catoosa, Chattooga, Cherokee, Dade, Dawson and 12 more1 min
Aug 30, 4:27 AM EDTFlash Flood WatchFFCBartow, Carroll, Catoosa, Chattooga, Cherokee, Cobb and 22 more43 hr
Aug 30, 2:29 PM EDTSpecial Weather StatementFFCChattooga31 min
Aug 30, 2:33 PM EDTSevere Thunderstorm WarningFFCChattooga, Floyd30 min
Aug 30, 4:09 PM EDTSpecial Weather StatementFFCCatoosa, Whitfield36 min
Aug 30, 4:11 PM EDTSpecial Weather StatementFFCGordon34 min
Aug 30, 4:34 PM EDTSpecial Weather StatementFFCPickens26 min
Aug 30, 4:41 PM EDTTornado WarningFFCGilmer, Gordon, Pickens14 min
Aug 30, 4:44 PM EDTSpecial Weather StatementFFCGordon31 min
Aug 30, 5:11 PM EDTSpecial Weather StatementFFCGilmer, Murray, Pickens, Whitfield34 min
Aug 30, 5:46 PM EDTSpecial Weather StatementFFCLamar29 min
Aug 30, 6:56 PM EDTSpecial Weather StatementFFCCoweta34 min
Aug 30, 7:23 PM EDTSpecial Weather StatementFFCCarroll22 min

Nearby

Severe Thunderstorm Warnings in Georgia, 2021Every severe thunderstorm warning 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; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.