Alert archive / Georgia / Severe Thunderstorm Warnings in 2005

Severe Thunderstorm Warning 13, NWS Atlanta, GA

February 21, 2005Oglethorpe County, Wilkes County, Georgia

NWS Atlanta, GA issued this severe thunderstorm warning at Feb 21, 2005, 2:29 PM EST for Oglethorpe County, Wilkes County, Georgia. It was in force for 46 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
Feb 21, 2005, 2:29 PM EST (19:29 UTC)
Expired
Feb 21, 2005, 3:15 PM EST
In force
46 min
Issued by
NWS Atlanta, GA
Area
Counties, with a storm outline in the text

Counties Oglethorpe County, GA, Wilkes County, GA

The radar

The Greer radar (KGSP), 133 km from the middle of the area, began a volume at 19:30 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
Feb 21, 1:45 PM ESTSevere Thunderstorm WatchSPC5 hr

The nearest sounding before it

Peachtre/Fal Fld, GA (KFFC), launched 12:00Z, 7.5 hours before the alert went out and 159 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 2005-02-21Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 88 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°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 2005-02-21The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 187 square meters per square second.1939587897117Sfc1 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
88 J/kg
Mixed-layer CIN
-50 J/kg
Mixed-layer LCL
553 m above ground
0-6 km bulk shear
40 kt
0-1 km storm-relative helicity
187 m²/s²
0-3 km storm-relative helicity
177 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.

000 
WUUS52 KFFC 211930
SVRFFC
GAC221-317-212015-
/O.NEW.KFFC.SV.W.0013.050221T1929Z-050221T2015Z/

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE PEACHTREE CITY GA
229 PM EST MON FEB 21 2005

THE NATIONAL WEATHER SERVICE IN PEACHTREE CITY HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  WILKES COUNTY IN EAST CENTRAL GEORGIA
  OGLETHORPE COUNTY IN NORTHEAST GEORGIA

* UNTIL 315 PM EST

* AT 226 PM EST...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM CAPABLE OF PRODUCING NICKEL SIZE HAIL.  THIS
  STORM WAS LOCATED 14 MILES WEST OF PRATHER...AND MOVING EAST AT
  40 MPH.  A SECOND STORM WILL BE ENTERING SOUTHWEST OGLETHORPE
  COUNTY BY 245 PM AND IS ALSO CAPABLE OF PRODUCING PENNY-SIZED HAIL.

* OTHER LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO
  WASHINGTON...TIGNALL AND SANDTOWN.

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.

LAT...LON 3389 8304 3372 8306 3364 8258 3390 8261

$$
1 follow-up statement
000 
WWUS52 KFFC 212014
SVSFFC

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE PEACHTREE CITY GA
311 PM EST MON FEB 21 2005

GAC221-317-212021-
/O.EXP.KFFC.SV.W.0013.000000T0000Z-050221T2015Z/
WILKES-OGLETHORPE-
311 PM EST MON FEB 21 2005

...THE SEVERE THUNDERSTORM WARNING FOR OGLETHORPE AND WILKES 
COUNTIES WILL BE ALLOWED TO EXPIRE AT 315 PM EST...

THE STORM THAT TRIGGERED THE WARNING HAS MOVED OUT OF THESE 
COUNTIES.  ANOTHER STRONG THUNDERSTORM WILL MOVE ALONG THE SOUTHWEST 
BORDER OF WILKES COUNTY THROUGH 345 PM.  THIS STORM IS WEAKER THAN 
THE PREVIOUS STORM...BUT WILL STILL BE CAPABLE OF PRODUCING 
PEA-SIZED HAIL AND WIND GUSTS TO 40 MPH.

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.

LAT...LON 3389 8304 3372 8306 3364 8258 3390 8261

$$

The office that day

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

IssuedProductOfficeCountiesLasted
Feb 21, 11:47 AM ESTSevere Thunderstorm WarningFFCCatoosa, Walker43 min
Feb 21, 12:01 PM ESTSevere Thunderstorm WarningFFCCobb, Paulding44 min
Feb 21, 12:32 PM ESTSevere Thunderstorm WarningFFCFannin, Gilmer28 min
Feb 21, 12:52 PM ESTSevere Thunderstorm WarningFFCCobb, Paulding23 min
Feb 21, 1:07 PM ESTSevere Thunderstorm WarningFFCGwinnett23 min
Feb 21, 1:15 PM ESTSevere Thunderstorm WarningFFCDeKalb, Fulton30 min
Feb 21, 1:28 PM ESTSevere Thunderstorm WarningFFCBarrow, Gwinnett, Walton47 min
Feb 21, 1:45 PM ESTSevere Thunderstorm WarningFFCClarke, Oconee30 min
Feb 21, 4:08 PM ESTSevere Thunderstorm WarningFFCMurray37 min
Feb 21, 4:19 PM ESTSevere Thunderstorm WarningFFCFannin, Gilmer41 min
Feb 21, 4:26 PM ESTSevere Thunderstorm WarningFFCChattooga, Walker49 min
Feb 21, 4:51 PM ESTSevere Thunderstorm WarningFFCUnion39 min
Feb 21, 4:58 PM ESTSevere Thunderstorm WarningFFCFloyd, Gordon47 min
Feb 21, 5:03 PM ESTSevere Thunderstorm WarningFFCLumpkin, Towns, White27 min
Feb 21, 5:11 PM ESTSevere Thunderstorm WarningFFCDawson, Pickens34 min
Feb 21, 5:15 PM ESTSevere Thunderstorm WarningFFCChattooga30 min
Feb 21, 5:20 PM ESTSevere Thunderstorm WarningFFCBartow40 min
Feb 21, 5:34 PM ESTSevere Thunderstorm WarningFFCFloyd41 min
Feb 21, 5:42 PM ESTSevere Thunderstorm WarningFFCCherokee48 min
Feb 21, 6:08 PM ESTSevere Thunderstorm WarningFFCForsyth, Fulton52 min
Feb 21, 6:14 PM ESTSevere Thunderstorm WarningFFCBartow, Paulding46 min
Feb 21, 6:28 PM ESTSevere Thunderstorm WarningFFCGwinnett, Hall32 min
Feb 21, 6:30 PM ESTSevere Thunderstorm WarningFFCCobb30 min
Feb 21, 6:34 PM ESTSevere Thunderstorm WarningFFCHancock41 min
Feb 21, 6:39 PM ESTSevere Thunderstorm WarningFFCBaldwin, Washington51 min
Feb 21, 6:42 PM ESTSevere Thunderstorm WarningFFCBarrow48 min
Feb 21, 6:53 PM ESTSevere Thunderstorm WarningFFCDeKalb, Gwinnett52 min

Nearby

Severe Thunderstorm Warnings in Georgia, 2005Every severe thunderstorm warning in 2005

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.