Alert archive / Georgia / Severe Thunderstorm Warnings in 2013

Severe Thunderstorm Warning 113, NWS Atlanta, GA

May 21, 2013Hancock County, Washington County, Georgia

NWS Atlanta, GA issued this severe thunderstorm warning at May 21, 2013, 6:34 PM EDT for Hancock County, Washington County, Georgia. It was in force for 41 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
May 21, 2013, 6:34 PM EDT (22:34 UTC)
Expired
May 21, 2013, 7:15 PM EDT
In force
41 min
Issued by
NWS Atlanta, GA
Area
Storm-based polygon

Counties Hancock County, GA, Washington County, GA

The radar

The Robins AFB radar (KJGX), 82 km from the middle of the area, began a volume at 22:34 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.

The nearest sounding before it

Peachtre/Fal Fld, GA (KFFC), launched 12:00Z, 10.6 hours before the alert went out and 152 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 2013-05-21Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1321 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 2013-05-21The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -23 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
1321 J/kg
Mixed-layer CIN
-66 J/kg
Mixed-layer LCL
925 m above ground
0-6 km bulk shear
6 kt
0-1 km storm-relative helicity
-23 m²/s²
0-3 km storm-relative helicity
12 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.

624 
WUUS52 KFFC 212234
SVRFFC
GAC141-303-212315-
/O.NEW.KFFC.SV.W.0113.130521T2234Z-130521T2315Z/

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE PEACHTREE CITY GA
634 PM EDT TUE MAY 21 2013

THE NATIONAL WEATHER SERVICE IN PEACHTREE CITY HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  EASTERN HANCOCK COUNTY IN EAST CENTRAL GEORGIA
  NORTH CENTRAL WASHINGTON COUNTY IN EAST CENTRAL GEORGIA

* UNTIL 715 PM EDT

* AT 629 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM CAPABLE OF PRODUCING GOLF BALL SIZED HAIL...AND
  DAMAGING WINDS UP TO 60 MPH.  THIS STORM WAS LOCATED 10 MILES
  NORTHEAST OF SPARTA...MOVING SOUTHWEST AT 5 MPH.

* OTHER LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO
  HAMBURG STATE PARK...SPRINGFIELD...LINTON AND CULVERTON.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

IN ADDITION TO LARGE HAIL AND DAMAGING WINDS...CONTINUOUS CLOUD TO
GROUND LIGHTNING IS OCCURRING WITH THIS STORM. MOVE INDOORS
IMMEDIATELY! REMEMBER...IF YOU CAN HEAR THUNDER...YOU ARE CLOSE
ENOUGH TO BE STRUCK BY LIGHTNING.

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. YOU CAN ALSO TWEET YOUR REPORT USING HASHTAG GAWX.

&&

LAT...LON 3325 8275 3306 8288 3311 8303 3324 8306
      3340 8300 3344 8297 3343 8283 3339 8283
      3336 8280 3331 8280 3331 8278 3327 8278
TIME...MOT...LOC 2234Z 062DEG 5KT 3333 8283

$$
1 follow-up statement
897 
WWUS52 KFFC 212307
SVSFFC

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE PEACHTREE CITY GA
707 PM EDT TUE MAY 21 2013

GAC141-303-212315-
/O.CON.KFFC.SV.W.0113.000000T0000Z-130521T2315Z/
WASHINGTON GA-HANCOCK GA-
707 PM EDT TUE MAY 21 2013

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 715 PM EDT
FOR EASTERN HANCOCK AND NORTH CENTRAL WASHINGTON COUNTIES...

AT 704 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO
INDICATE A SEVERE THUNDERSTORM CAPABLE OF PRODUCING QUARTER SIZED 
HAIL...AND DAMAGING WINDS UP TO 60 MPH. THIS STORM WAS LOCATED ABOUT 
6 MILES EAST OF LINTON.  THIS STORM WAS NEARLY STATIONARY.

OTHER LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO
SPRINGFIELD...POWELTON...CULVERTON AND SPARTA.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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. YOU CAN ALSO TWEET YOUR REPORT USING HASHTAG GAWX.

&&

LAT...LON 3325 8275 3306 8288 3311 8303 3324 8306
      3340 8300 3344 8297 3343 8283 3339 8283
      3336 8280 3331 8280 3331 8278 3327 8278
TIME...MOT...LOC 2307Z 095DEG 1KT 3313 8289

$$

The office that day

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

IssuedProductOfficeCountiesLasted
May 21, 10:47 AM EDTRiver Flood WarningFFCFloyd72 hr
May 21, 2:44 PM EDTSpecial Weather StatementFFCFannin31 min
May 21, 2:48 PM EDTSpecial Weather StatementFFCOglethorpe27 min
May 21, 2:50 PM EDTSpecial Weather StatementFFCEmanuel25 min
May 21, 2:54 PM EDTSpecial Weather StatementFFCCobb36 min
May 21, 3:30 PM EDTSpecial Weather StatementFFCTaliaferro30 min
May 21, 5:04 PM EDTSpecial Weather StatementFFCLincoln26 min
May 21, 5:12 PM EDTSpecial Weather StatementFFCTelfair33 min
May 21, 6:10 PM EDTSevere Thunderstorm WarningFFCGlascock, Warren50 min
May 21, 6:13 PM EDTSpecial Weather StatementFFCWashington32 min
May 21, 6:55 PM EDTSpecial Weather StatementFFCWashington35 min
May 21, 7:11 PM EDTSpecial Weather StatementFFCHancock34 min
May 21, 7:15 PM EDTSpecial Weather StatementFFCCrisp30 min
May 21, 7:21 PM EDTSpecial Weather StatementFFCBaldwin39 min
May 21, 7:40 PM EDTSpecial Weather StatementFFCJackson50 min
May 21, 7:59 PM EDTSpecial Weather StatementFFCBaldwin31 min

Nearby

Severe Thunderstorm Warnings in Georgia, 2013Every severe thunderstorm warning in 2013

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.