Alert archive / Georgia / Severe Thunderstorm Warnings in 2011

Severe Thunderstorm Warning 3, NWS Atlanta, GA

February 25, 20115 counties in Georgia

NWS Atlanta, GA issued this severe thunderstorm warning at Feb 25, 2011, 1:51 AM EST for 5 counties in Georgia. It was in force for 54 min. 2 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
Feb 25, 2011, 1:51 AM EST (06:51 UTC)
Expired
Feb 25, 2011, 2:45 AM EST
In force
54 min
Issued by
NWS Atlanta, GA
Area
Storm-based polygon

Counties Carroll County, GA, Douglas County, GA, Haralson County, GA, Paulding County, GA, Polk County, GA

The radar

The Atlanta radar (KFFC), 82 km from the middle of the area, began a volume at 06:52 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
Feb 25, 2:30 AM ESTTSTM WND DMGFelton, GATWO TREES AND TWO POWER LINES DOWN.
Feb 25, 2:55 AM ESTTSTM WND DMGDallas, GAONE TREE DOWN ON HIGH SHOALS ROAD.

Local storm reports filed while the alert was in force, from inside its polygon or its counties.

The watch it was issued in

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

IssuedProductOfficeLasted
Feb 24, 11:59 PM ESTSevere Thunderstorm WatchSPC5 hr

The nearest sounding before it

Peachtre/Fal Fld, GA (KFFC), launched 00:00Z, 6.9 hours before the alert went out and 85 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 00:00Z on 2011-02-25Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 2 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 00:00Z on 2011-02-25The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 137 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
2 J/kg
Mixed-layer CIN
-38 J/kg
Mixed-layer LCL
1511 m above ground
0-6 km bulk shear
50 kt
0-1 km storm-relative helicity
137 m²/s²
0-3 km storm-relative helicity
274 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

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

409 
WUUS52 KFFC 250651
SVRFFC
GAC045-097-143-223-233-250745-
/O.NEW.KFFC.SV.W.0003.110225T0651Z-110225T0745Z/

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE PEACHTREE CITY GA
151 AM EST FRI FEB 25 2011

THE NATIONAL WEATHER SERVICE IN PEACHTREE CITY HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  NORTHWESTERN DOUGLAS COUNTY IN NORTH CENTRAL GEORGIA
  CARROLL COUNTY IN NORTHWEST GEORGIA
  HARALSON COUNTY IN NORTHWEST GEORGIA
  PAULDING COUNTY IN NORTHWEST GEORGIA
  POLK COUNTY IN NORTHWEST GEORGIA

* UNTIL 245 AM EST

* AT 149 AM EST...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  LINE OF SEVERE THUNDERSTORMS CAPABLE OF PRODUCING DAMAGING WINDS UP
  TO 60 MPH.  THESE STORMS WERE LOCATED ALONG A LINE EXTENDING FROM
  14 MILES WEST OF CEDARTOWN TO 20 MILES WEST OF TALLAPOOSA TO 38
  MILES WEST OF TALLAPOOSA...MOVING EAST AT 55 MPH.

* OTHER LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO
  ARAGON...BUCHANAN...ROCKMART...TAYLORSVILLE...BRASWELL...WACO...
  BREMEN...BOWDON...MOUNT ZION...TEMPLE...DALLAS...VILLA RICA...HIRAM
  AND CARROLLTON.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

THIS IS A DANGEROUS STORM. IF YOU ARE IN ITS PATH...PREPARE
IMMEDIATELY FOR DAMAGING WINDS...DESTRUCTIVE HAIL...AND DEADLY CLOUD
TO GROUND LIGHTNING. PEOPLE OUTSIDE SHOULD MOVE TO A SHELTER...
PREFERABLY INSIDE A STRONG BUILDING AND AWAY FROM WINDOWS.

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 SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 400 AM EST FRIDAY
MORNING FOR NORTHERN GEORGIA.

&&

LAT...LON 3409 8526 3410 8526 3411 8516 3409 8515
      3411 8511 3411 8504 3409 8504 3409 8495
      3408 8494 3409 8474 3382 8471 3352 8497
      3346 8504 3348 8531 3409 8542
TIME...MOT...LOC 0651Z 270DEG 50KT 3406 8546 3383 8559
          3357 8589

$$
1 follow-up statement
941 
WWUS52 KFFC 250719
SVSFFC

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE PEACHTREE CITY GA
219 AM EST FRI FEB 25 2011

GAC045-097-143-223-233-250745-
/O.CON.KFFC.SV.W.0003.000000T0000Z-110225T0745Z/
DOUGLAS GA-CARROLL GA-HARALSON GA-PAULDING GA-POLK GA-
219 AM EST FRI FEB 25 2011

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 245 AM EST
FOR POLK...PAULDING...HARALSON...CARROLL AND NORTHWESTERN DOUGLAS
COUNTIES...

AT 219 AM EST...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO 
INDICATE A LINE OF STRONG TO SEVERE THUNDERSTORMS CAPABLE OF 
PRODUCING DAMAGING WINDS UP TO 60 MPH. THESE STORMS WERE LOCATED 
ALONG A LINE EXTENDING FROM FISH CREEK TO TALLAPOOSA TO 20 MILES 
WEST OF BOWDON...AND MOVING EAST AT 50 MPH.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

FOR YOUR PROTECTION MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR OF 
YOUR HOME OR BUSINESS. THIS LINE OF STORMS HAS THE POTENTIAL TO 
CAUSE DAMAGE TO PROPERTY.

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 SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 400 AM EST FRIDAY
MORNING FOR NORTHERN GEORGIA.

&&

LAT...LON 3409 8526 3410 8526 3411 8516 3409 8515
      3411 8511 3411 8504 3409 8504 3409 8495
      3408 8494 3409 8474 3382 8471 3352 8497
      3346 8504 3348 8531 3409 8542
TIME...MOT...LOC 0717Z 269DEG 45KT 3405 8512 3382 8526
          3356 8556

$$

The office that day

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

IssuedProductOfficeCountiesLasted
Feb 25, 1:12 AM ESTSevere Thunderstorm WarningFFCCatoosa, Chattooga, Dade, Floyd, Walker63 min
Feb 25, 1:48 AM ESTSevere Thunderstorm WarningFFCBartow, Floyd, Gordon, Murray, Whitfield57 min
Feb 25, 2:25 AM ESTSevere Thunderstorm WarningFFCCherokee, Fannin, Gilmer, Pickens54 min
Feb 25, 2:36 AM ESTSevere Thunderstorm WarningFFCCarroll, Coweta, Heard, Troup54 min
Feb 25, 2:43 AM ESTSevere Thunderstorm WarningFFCCarroll, Cobb, Douglas, Fulton, Hall62 min
Feb 25, 2:48 AM ESTSevere Thunderstorm WarningFFCCarroll, Haralson, Paulding27 min
Feb 25, 3:19 AM ESTWind AdvisoryFFCBaldwin, Banks, Barrow, Bartow, Bibb, Bleckley and 90 more13 hr

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; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.