Alert archive / Georgia / Severe Thunderstorm Warnings in 2011

Severe Thunderstorm Warning 502, NWS Atlanta, GA

November 16, 2011Fannin County, Union County, Georgia

NWS Atlanta, GA issued this severe thunderstorm warning at Nov 16, 2011, 1:59 PM EST for Fannin County, Union County, Georgia. It was in force for 31 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
Nov 16, 2011, 1:59 PM EST (18:59 UTC)
Expired
Nov 16, 2011, 2:30 PM EST
In force
31 min
Issued by
NWS Atlanta, GA
Area
Storm-based polygon

Counties Fannin County, GA, Union County, GA

The radar

The Knoxville radar (KMRX), 154 km from the middle of the area, began a volume at 18:59 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 watch it was issued in

The SPC watch in force over the same counties when this warning went out.

IssuedProductOfficeLasted
Nov 16, 10:46 AM ESTTornado WatchSPC7 hr

The nearest sounding before it

Peachtre/Fal Fld, GA (KFFC), launched 12:00Z, 7.0 hours before the alert went out and 177 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 2011-11-16Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 627 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 2011-11-16The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 108 square meters per square second.1939587897Sfc1 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
627 J/kg
Mixed-layer CIN
-1 J/kg
Mixed-layer LCL
484 m above ground
0-6 km bulk shear
61 kt
0-1 km storm-relative helicity
108 m²/s²
0-3 km storm-relative helicity
101 m²/s²
Significant tornado parameter
0.3
Supercell composite
2.1

Open this sounding in Storm Lab

The text

As transmitted, in the capitals the NWS used until 2016.

932 
WUUS52 KFFC 161859
SVRFFC
GAC111-291-161945-
/O.NEW.KFFC.SV.W.0502.111116T1859Z-111116T1945Z/

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE PEACHTREE CITY GA
159 PM EST WED NOV 16 2011

THE NATIONAL WEATHER SERVICE IN PEACHTREE CITY HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  NORTHERN FANNIN COUNTY IN NORTH CENTRAL GEORGIA
  NORTHWESTERN UNION COUNTY IN NORTH CENTRAL GEORGIA

* UNTIL 245 PM EST

* AT 155 PM EST...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM CAPABLE OF PRODUCING QUARTER SIZED HAIL...AND
  DAMAGING WINDS UP TO 60 MPH.  THIS STORM WAS LOCATED 9 MILES
  SOUTHWEST OF MCCAYSVILLE-COPPERHILL...MOVING EAST AT 40 MPH.

* OTHER LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO
  EPWORTH...MINERAL BLUFF...LOVING...NOTTELY DAM AND IVY LOG.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A TORNADO WATCH REMAINS IN EFFECT FOR THE WARNED AREA. IF A TORNADO
IS SPOTTED...ACT QUICKLY AND MOVE TO A PLACE OF SAFETY INSIDE A
STURDY STRUCTURE...SUCH AS A BASEMENT OR SMALL INTERIOR ROOM.

IF YOU SEE WIND DAMAGE...LARGE HAIL OR SIGNIFICANT 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.

A TORNADO WATCH REMAINS IN EFFECT UNTIL 900 PM EST WEDNESDAY EVENING
FOR GEORGIA. A TORNADO WATCH ALSO REMAINS IN EFFECT UNTIL 700 PM EST
WEDNESDAY EVENING FOR NORTHERN GEORGIA.

&&

LAT...LON 3499 8394 3497 8394 3494 8392 3485 8444
      3485 8456 3499 8461
TIME...MOT...LOC 1900Z 256DEG 36KT 3494 8446

$$
2 follow-up statements
956 
WWUS52 KFFC 161920
SVSFFC

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE PEACHTREE CITY GA
220 PM EST WED NOV 16 2011

GAC111-291-161945-
/O.CON.KFFC.SV.W.0502.000000T0000Z-111116T1945Z/
UNION GA-FANNIN GA-
220 PM EST WED NOV 16 2011

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 245 PM EST
FOR NORTHERN FANNIN AND NORTHWESTERN UNION COUNTIES...

AT 218 PM EST...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO
INDICATE A SEVERE THUNDERSTORM CAPABLE OF PRODUCING DAMAGING WINDS UP
TO 60 MPH. THIS STORM WAS LOCATED NEAR LOVING...MOVING EAST AT 40 
MPH.  THE STORM HAS WEAKENED SLIGHTLY.

OTHER LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO NOTTELY
DAM AND IVY LOG.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

IF YOU SEE WIND DAMAGE...LARGE HAIL OR SIGNIFICANT FLOODING...WAIT
UNTIL AFTER 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.

A TORNADO WATCH REMAINS IN EFFECT UNTIL 900 PM EST WEDNESDAY EVENING
FOR GEORGIA. A TORNADO WATCH ALSO REMAINS IN EFFECT UNTIL 700 PM EST
WEDNESDAY EVENING FOR NORTHERN GEORGIA.

&&

LAT...LON 3497 8394 3496 8393 3494 8394 3493 8396
      3492 8405 3492 8406 3485 8444 3488 8450
      3498 8435 3499 8394
TIME...MOT...LOC 1920Z 256DEG 36KT 3499 8422

$$
319 
WWUS52 KFFC 161930
SVSFFC

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE PEACHTREE CITY GA
230 PM EST WED NOV 16 2011

GAC111-291-161939-
/O.CAN.KFFC.SV.W.0502.000000T0000Z-111116T1945Z/
UNION GA-FANNIN GA-
230 PM EST WED NOV 16 2011

...THE SEVERE THUNDERSTORM WARNING FOR NORTHERN FANNIN AND
NORTHWESTERN UNION COUNTIES IS CANCELLED...

THE STORM THAT PROMPTED THE WARNING HAS WEAKENED TO BELOW SEVERE LIMITS. 

SEE WIND DAMAGE...LARGE HAIL OR SIGNIFICANT FLOODING...WAIT UNTIL 
AFTER 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.

A TORNADO WATCH REMAINS IN EFFECT UNTIL 900 PM EST WEDNESDAY EVENING
FOR GEORGIA. A TORNADO WATCH ALSO REMAINS IN EFFECT UNTIL 700 PM EST
WEDNESDAY EVENING FOR NORTHERN GEORGIA.

LAT...LON 3497 8394 3496 8393 3494 8394 3493 8396
      3492 8405 3492 8406 3485 8444 3488 8450
      3498 8435 3499 8394
TIME...MOT...LOC 1929Z 256DEG 36KT 3501 8412

$$

The office that day

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

IssuedProductOfficeCountiesLasted
Nov 16, 11:23 AM ESTSpecial Weather StatementFFCDade67 min
Nov 16, 12:04 PM ESTSpecial Weather StatementFFCFloyd, Polk41 min
Nov 16, 12:22 PM ESTSpecial Weather StatementFFCCarroll, Douglas38 min
Nov 16, 12:46 PM ESTTornado WarningFFCCobb, Paulding29 min
Nov 16, 1:06 PM ESTTornado WarningFFCCherokee, Cobb, Fulton39 min
Nov 16, 1:11 PM ESTTornado WarningFFCHarris, Troup49 min
Nov 16, 1:25 PM ESTSevere Thunderstorm WarningFFCCobb, DeKalb, Fulton35 min
Nov 16, 1:28 PM ESTSevere Thunderstorm WarningFFCCherokee, Forsyth47 min
Nov 16, 1:42 PM ESTSpecial Weather StatementFFCFannin, Murray48 min
Nov 16, 1:44 PM ESTTornado WarningFFCDeKalb, Fulton, Gwinnett26 min
Nov 16, 1:52 PM ESTTornado WarningFFCHarris, Meriwether, Talbot, Upson38 min
Nov 16, 2:04 PM ESTSpecial Weather StatementFFCHall26 min
Nov 16, 2:13 PM ESTSpecial Weather StatementFFCChattahoochee, Marion, Muscogee47 min
Nov 16, 2:24 PM ESTTornado WarningFFCLamar, Meriwether, Pike, Talbot, Upson36 min
Nov 16, 2:37 PM ESTSpecial Weather StatementFFCMurray53 min
Nov 16, 2:41 PM ESTSevere Thunderstorm WarningFFCChattahoochee, Marion24 min
Nov 16, 2:56 PM ESTSpecial Weather StatementFFCJasper, Lamar, Monroe34 min
Nov 16, 3:00 PM ESTSpecial Weather StatementFFCStewart, Webster45 min
Nov 16, 3:08 PM ESTTornado WarningFFCJasper, Jones, Monroe, Putnam39 min
Nov 16, 3:20 PM ESTSevere Thunderstorm WarningFFCBibb, Twiggs, Wilkinson40 min
Nov 16, 3:32 PM ESTSevere Thunderstorm WarningFFCGlascock, Jefferson, Washington58 min
Nov 16, 3:38 PM ESTSpecial Weather StatementFFCMacon, Marion, Schley, Sumter, Webster37 min
Nov 16, 3:44 PM ESTSpecial Weather StatementFFCHancock, Putnam46 min
Nov 16, 3:44 PM ESTTornado WarningFFCGlascock, Jefferson, Washington46 min
Nov 16, 3:54 PM ESTSevere Thunderstorm WarningFFCBleckley, Houston, Twiggs36 min
Nov 16, 4:03 PM ESTSevere Thunderstorm WarningFFCBaldwin, Washington, Wilkinson42 min
Nov 16, 4:13 PM ESTSpecial Weather StatementFFCMacon, Schley, Sumter, Taylor32 min
Nov 16, 4:17 PM ESTSevere Thunderstorm WarningFFCLaurens, Wilkinson43 min
Nov 16, 4:21 PM ESTSpecial Weather StatementFFCDooly39 min
Nov 16, 4:23 PM ESTTornado WarningFFCJefferson, Washington37 min
Nov 16, 4:50 PM ESTTornado WarningFFCJohnson, Laurens40 min
Nov 16, 5:00 PM ESTSpecial Weather StatementFFCCrisp30 min
Nov 16, 5:00 PM ESTTornado WarningFFCJefferson45 min
Nov 16, 5:06 PM ESTTornado WarningFFCJefferson39 min
Nov 16, 5:21 PM ESTSpecial Weather StatementFFCCrisp, Pulaski, Wilcox24 min
Nov 16, 5:27 PM ESTTornado WarningFFCEmanuel48 min
Nov 16, 5:41 PM ESTSpecial Weather StatementFFCDodge, Pulaski, Wilcox49 min
Nov 16, 5:54 PM ESTSevere Thunderstorm WarningFFCDodge, Telfair, Wilcox51 min
Nov 16, 6:40 PM ESTSevere Thunderstorm WarningFFCTelfair, Wheeler37 min
Nov 16, 6:51 PM ESTTornado WarningFFCMontgomery, Telfair, Wheeler39 min

Nearby

Severe Thunderstorm Warnings in Georgia, 2011Every severe thunderstorm warning in 2011

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.