Alert archive / Georgia / Special Weather Statements in 2014

Special Weather Statement, NWS Atlanta, GA

October 9, 2014Catoosa County, Georgia

NWS Atlanta, GA issued this special weather statement at Oct 9, 2014, 3:08 PM EDT for Catoosa County, Georgia. It was in force for 52 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, 3:08 PM EDT (19:08 UTC)
Expired
Oct 9, 2014, 4:00 PM EDT
In force
52 min
Issued by
NWS Atlanta, GA

County Catoosa County, GA

The radar

The Northeast Alabama radar (KHTX), 97 km from the middle of the area, began a volume at 19:10 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, 7.1 hours before the alert went out and 182 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°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 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.

775 
WWUS82 KFFC 091908
SPSFFC

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE PEACHTREE CITY GA
308 PM EDT THU OCT 9 2014

GAZ003-004-092000-
308 PM EDT THU OCT 9 2014

...SIGNIFICANT WEATHER ADVISORY FOR PEA SIZED HAIL AND 40 MPH WINDS
IN WHITFIELD AND CATOOSA COUNTIES UNTIL 400 PM EDT...

AT 307 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
STRONG THUNDERSTORM OVER SALEM...MOVING EAST AT 10 MPH.

THE LEADING EDGE OF THIS LINE OF STORMS HAS EXHIBITED AREAS OF
LOCALIZED...WEAK ROTATION...BUT NOTHING STRONG ENOUGH TO INDICATE THE
PRESENCE OF A TORNADO AT 307 PM EDT. STILL...THE ENVIRONMENT ALONG
THIS LINE SUGGESTS AN ENHANCED RISK OF A BRIEF...GENERALLY WEAK...
TORNADO FORMING. WIND GUSTS TO 40 MPH ARE ALSO POSSIBLE AS THE LINE
MOVES ACROSS WHITFIELD AND CATOOSA COUNTIES THROUGH 400 PM EDT.

SOME LOCATIONS IN THE PATH OF THESE STORMS INCLUDE RINGGOLD...INDIAN
SPRINGS...GRAYSVILLE...SALEM...VARNELL AND COHUTTA.

EVERYONE IN THIS AREA IS URGED TO REMAIN INDOORS AND BE ALERT TO THE
POSSIBILITY OF LOCALIZED WIND DAMAGE AND WEAK TORNADOES THAT FORM AND
DISSIPATE RAPIDLY. ONCE THIS LINE OF THUNDERSTORMS MOVES EAST OF YOUR
AREA...THE RISK OF TORNADO FORMATION WILL DECREASE SIGNIFICANTLY.

&&

LAT...LON 3499 8491 3488 8493 3491 8515 3499 8518
TIME...MOT...LOC 1908Z 260DEG 10KT 3498 8507

$$

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, 3:27 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

Special Weather Statements in Georgia, 2014Every special weather statement 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.