Alert archive / Georgia / Severe Thunderstorm Warnings in 2014

Severe Thunderstorm Warning 264, NWS Atlanta, GA

October 9, 2014Banks County, Jackson County, Madison County, Georgia

NWS Atlanta, GA issued this severe thunderstorm warning at Oct 9, 2014, 5:20 PM EDT for Banks County, Jackson County, Madison County, Georgia. It was in force for 40 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
Oct 9, 2014, 5:20 PM EDT (21:20 UTC)
Expired
Oct 9, 2014, 6:00 PM EDT
In force
40 min
Issued by
NWS Atlanta, GA
Area
Storm-based polygon

Counties Banks County, GA, Jackson County, GA, Madison County, GA

The radar

The Greer radar (KGSP), 134 km from the middle of the area, began a volume at 21:20 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, 9.3 hours before the alert went out and 136 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.

028 
WUUS52 KFFC 092120
SVRFFC
GAC011-157-195-092200-
/O.NEW.KFFC.SV.W.0264.141009T2120Z-141009T2200Z/

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

THE NATIONAL WEATHER SERVICE IN PEACHTREE CITY HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  SOUTHERN BANKS COUNTY IN NORTHEAST GEORGIA
  JACKSON COUNTY IN NORTHEAST GEORGIA
  WESTERN MADISON COUNTY IN NORTHEAST GEORGIA

* UNTIL 600 PM EDT

* AT 517 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
  PENDERGRASS...MOVING EAST AT 15 MPH.

* OTHER LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO
  MAYSVILLE...JEFFERSON...ARCADE...COMMERCE...NICHOLSON AND ILA.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

DOPPLER RADAR HAS INDICATED ROTATION WITHIN THIS STORM. ALTHOUGH
CURRENT DATA DOES NOT INDICATE THE EXISTENCE OF A TORNADO...A TORNADO
MAY STILL DEVELOP. 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...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 3425 8333 3427 8330 3426 8328 3403 8329
      3410 8371 3423 8369 3428 8364 3429 8335
TIME...MOT...LOC 2120Z 277DEG 13KT 3418 8359

$$
1 follow-up statement
403 
WWUS52 KFFC 092154
SVSFFC

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

GAC011-157-195-092204-
/O.EXP.KFFC.SV.W.0264.000000T0000Z-141009T2200Z/
MADISON GA-BANKS GA-JACKSON GA-
554 PM EDT THU OCT 9 2014

...THE SEVERE THUNDERSTORM WARNING FOR JACKSON...SOUTHERN BANKS AND
WESTERN MADISON COUNTIES WILL EXPIRE AT 600 PM EDT...

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 3425 8333 3427 8330 3426 8328 3403 8329
      3410 8371 3423 8369 3428 8364 3429 8335
TIME...MOT...LOC 2154Z 277DEG 13KT 3416 8344

$$

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, 2:36 PM EDTSevere Thunderstorm WarningFFCCobb, Douglas, Fulton, Paulding39 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, 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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.