Alert archive / Georgia / Severe Thunderstorm Warnings in 2014

Severe Thunderstorm Warning 261, NWS Atlanta, GA

October 9, 20144 counties in Georgia

NWS Atlanta, GA issued this severe thunderstorm warning at Oct 9, 2014, 2:36 PM EDT for 4 counties in Georgia. It was in force for 39 min. 1 report 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
Oct 9, 2014, 2:36 PM EDT (18:36 UTC)
Expired
Oct 9, 2014, 3:15 PM EDT
In force
39 min
Issued by
NWS Atlanta, GA
Area
Storm-based polygon

Counties Cobb County, GA, Douglas County, GA, Fulton County, GA, Paulding County, GA

The radar

The Atlanta radar (KFFC), 55 km from the middle of the area, began a volume at 18:36 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
Oct 9, 2:56 PM EDTHAIL 1Austell, GASHELL GAS STATION EMPLOYEE REPORTS QUARTER SIZE HAIL AT THE SHELL GAS STATION ON AUSTELL ROAD.

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, 6.6 hours before the alert went out and 55 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 2014-10-09Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1417 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 2014-10-09The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 15 square meters per square second.193958Sfc1 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
1417 J/kg
Mixed-layer CIN
-38 J/kg
Mixed-layer LCL
879 m above ground
0-6 km bulk shear
27 kt
0-1 km storm-relative helicity
15 m²/s²
0-3 km storm-relative helicity
57 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.2

Open this sounding in Storm Lab

The text

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

650 
WUUS52 KFFC 091836
SVRFFC
GAC067-097-121-223-091915-
/O.NEW.KFFC.SV.W.0261.141009T1836Z-141009T1915Z/

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE PEACHTREE CITY GA
236 PM EDT THU OCT 9 2014

THE NATIONAL WEATHER SERVICE IN PEACHTREE CITY HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  SOUTHERN COBB COUNTY IN NORTH CENTRAL GEORGIA
  NORTHEASTERN DOUGLAS COUNTY IN NORTH CENTRAL GEORGIA
  CENTRAL FULTON COUNTY IN NORTH CENTRAL GEORGIA
  SOUTHEASTERN PAULDING COUNTY IN NORTHWEST GEORGIA

* UNTIL 315 PM EDT

* AT 236 PM EDT...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 NEAR LITHIA
  SPRINGS...MOVING EAST AT 10 MPH.

* OTHER LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO
  POWDER SPRINGS...AUSTELL...SMYRNA AND MARIETTA.

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 OR TWEET US YOUR REPORT AT NWSATLANTA.

&&

LAT...LON 3398 8450 3376 8440 3371 8473 3387 8476
TIME...MOT...LOC 1837Z 253DEG 9KT 3381 8469

$$
2 follow-up statements
021 
WWUS52 KFFC 091847
SVSFFC

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE PEACHTREE CITY GA
247 PM EDT THU OCT 9 2014

GAC223-091858-
/O.CAN.KFFC.SV.W.0261.000000T0000Z-141009T1915Z/
PAULDING GA-
247 PM EDT THU OCT 9 2014

...THE SEVERE THUNDERSTORM WARNING FOR SOUTHEASTERN PAULDING COUNTY
IS CANCELLED...

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 3373 8471 3387 8472 3398 8450 3376 8440
TIME...MOT...LOC 1848Z 253DEG 9KT 3382 8466

$$

GAC067-097-121-091915-
/O.CON.KFFC.SV.W.0261.000000T0000Z-141009T1915Z/
COBB GA-DOUGLAS GA-FULTON GA-
247 PM EDT THU OCT 9 2014

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 315 PM EDT
FOR CENTRAL FULTON...NORTHEASTERN DOUGLAS AND SOUTHERN COBB
COUNTIES...

AT 246 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO
INDICATE A SEVERE THUNDERSTORM CAPABLE OF PRODUCING QUARTER SIZE
HAIL...AND DAMAGING WINDS IN EXCESS OF 60 MPH.  THIS STORM WAS
LOCATED NEAR LITHIA SPRINGS..MOVING EAST AT 10 MPH.

OTHER LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO
SWEETWATER CREEK STATE PARK...AUSTELL...MABLETON...BOLTON...
BANKHEAD...JIM R MILLER PARK...SIX FLAGS OVER GEORGIA...WHITE WATER
PARK...DOBBINS AIR RESERVE BASE...VININGS...SMYRNA AND MARIETTA

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 OR TWEET US YOUR REPORT AT NWSATLANTA.

&&

LAT...LON 3373 8471 3387 8472 3398 8450 3376 8440
TIME...MOT...LOC 1848Z 253DEG 9KT 3382 8466

$$
444 
WWUS52 KFFC 091913
SVSFFC

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE PEACHTREE CITY GA
313 PM EDT THU OCT 9 2014

GAC067-097-121-091923-
/O.EXP.KFFC.SV.W.0261.000000T0000Z-141009T1915Z/
COBB GA-DOUGLAS GA-FULTON GA-
313 PM EDT THU OCT 9 2014

...THE SEVERE THUNDERSTORM WARNING FOR CENTRAL FULTON...NORTHEASTERN
DOUGLAS AND SOUTHERN COBB COUNTIES WILL EXPIRE AT 315 PM EDT...

THIS IS STILL A STRONG STORM...WITH SMALL HAIL AND STRONG WINDS POSSIBLE. IF 
SEVERE WEATHER IS EXPECTED TO PERSIST BEYOND THE EXPIRATION TIME OF 
THIS WARNING...A NEW WARNING WILL BE ISSUED.

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 3373 8471 3387 8472 3398 8450 3376 8440
TIME...MOT...LOC 1913Z 253DEG 9KT 3384 8459

$$

The office that day

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

IssuedProductOfficeCountiesLasted
Oct 8, 8:14 PM EDTSpecial Weather StatementFFCBartow31 min
Oct 9, 1:28 PM EDTSpecial Weather StatementFFCLumpkin47 min
Oct 9, 1:37 PM EDTSpecial Weather StatementFFCClarke, Jackson38 min
Oct 9, 2:12 PM EDTSpecial Weather StatementFFCWhite33 min
Oct 9, 2:34 PM EDTSpecial Weather StatementFFCCobb, Fulton26 min
Oct 9, 3:02 PM EDTSpecial Weather StatementFFCWhite28 min
Oct 9, 3:08 PM EDTSpecial Weather StatementFFCCatoosa52 min
Oct 9, 3:27 PM EDTSpecial Weather StatementFFCWhitfield33 min
Oct 9, 3:33 PM EDTSpecial Weather StatementFFCMurray42 min
Oct 9, 3:37 PM EDTSpecial Weather StatementFFCBanks38 min
Oct 9, 3:39 PM EDTSpecial Weather StatementFFCDouglas, Fulton51 min
Oct 9, 3:41 PM EDTSpecial Weather StatementFFCWhite64 min
Oct 9, 3:53 PM EDTSevere Thunderstorm WarningFFCFannin, Gilmer, Murray, Whitfield52 min
Oct 9, 4:25 PM EDTSpecial Weather StatementFFCTreutlen50 min
Oct 9, 4:56 PM EDTSpecial Weather StatementFFCBanks49 min
Oct 9, 4:58 PM EDTSpecial Weather StatementFFCForsyth47 min
Oct 9, 5:01 PM EDTSevere Thunderstorm WarningFFCDawson, Forsyth, Hall44 min
Oct 9, 5:20 PM EDTSevere Thunderstorm WarningFFCBanks, Jackson, Madison40 min
Oct 9, 6:15 PM EDTSpecial Weather StatementFFCJackson45 min
Oct 9, 6:32 PM EDTSevere Thunderstorm WarningFFCLumpkin, Towns, Union, White58 min
Oct 9, 7:00 PM EDTSevere Thunderstorm WarningFFCBarrow, Clarke, Jackson, Madison, Oconee, Oglethorpe60 min

Nearby

Severe Thunderstorm Warnings in Georgia, 2014Every severe thunderstorm warning in 2014

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.