Alert archive / Georgia / Special Weather Statements in 2012

Special Weather Statement, NWS Atlanta, GA

December 10, 2012Catoosa County, Murray County, Whitfield County, Georgia

NWS Atlanta, GA issued this special weather statement at Dec 10, 2012, 6:13 AM EST for Catoosa County, Murray County, Whitfield County, Georgia. It was in force for 47 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
Dec 10, 2012, 6:13 AM EST (11:13 UTC)
Expired
Dec 10, 2012, 7:00 AM EST
In force
47 min
Issued by
NWS Atlanta, GA

Counties Catoosa County, GA, Murray County, GA, Whitfield County, GA

The radar

The Northeast Alabama radar (KHTX), 114 km from the middle of the area, began a volume at 11:16 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 00:00Z, 11.2 hours before the alert went out and 169 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 00:00Z on 2012-12-10Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCL10008507005003002001001 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 00:00Z on 2012-12-10The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 72 square meters per square second.1939587897Sfc1 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
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
1249 m above ground
0-6 km bulk shear
42 kt
0-1 km storm-relative helicity
72 m²/s²
0-3 km storm-relative helicity
120 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.

822 
WWUS82 KFFC 101113
SPSFFC

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE PEACHTREE CITY GA
613 AM EST MON DEC 10 2012

GAZ002>005-101200-
613 AM EST MON DEC 10 2012

...SIGNIFICANT WEATHER ADVISORY FOR 40 MPH WINDS IN WHITFIELD...
WALKER...MURRAY AND CATOOSA COUNTIES UNTIL 700 AM EST...

AT 607 AM EST...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED
STRONG THUNDERSTORMS FROM GRAYSVILLE TO 8 MILES WEST OF NOBLE...
MOVING EAST AT 40 MPH.

WIND GUSTS OF 40 MPH ARE LIKELY AS THESE STORMS MOVE ACROSS
WHITFIELD...WALKER...MURRAY AND CATOOSA COUNTIES THROUGH 700 AM EST.
SOME LOCATIONS IN THE PATH OF THESE STORMS INCLUDE BOYNTON...INDIAN
SPRINGS...GRAYSVILLE...FORT OGLETHORPE...CHICKAMAUGA...BLUE SPRING...
ROCK SPRING...SALEM...BEAUMONT...RINGGOLD...NOBLE...WOOD STATION...
TUNNEL HILL...VARNELL AND COHUTTA.

&&

LAT...LON 3499 8462 3486 8462 3483 8459 3467 8477
      3475 8540 3499 8524
TIME...MOT...LOC 1113Z 274DEG 33KT 3502 8507 3478 8533

$$

The office that day

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

IssuedProductOfficeCountiesLasted
Dec 10, 2:57 AM ESTWind AdvisoryFFCCatoosa, Chattooga, Dade, Fannin, Gilmer, Lumpkin and 6 more16 hr
Dec 10, 5:12 AM ESTSpecial Weather StatementFFCCatoosa, Chattooga, Dade, Walker63 min
Dec 10, 6:29 AM ESTSpecial Weather StatementFFCChattooga, Floyd31 min
Dec 10, 6:55 AM ESTSpecial Weather StatementFFCChattooga, Floyd35 min
Dec 10, 8:15 AM ESTDense Fog AdvisoryFFCEmanuel, Johnson, Laurens, Montgomery, Telfair, Toombs and 2 more105 min
Dec 10, 11:24 AM ESTSpecial Weather StatementFFCCarroll, Heard51 min
Dec 10, 11:50 AM ESTSevere Thunderstorm WarningFFCCarroll, Haralson25 min
Dec 10, 12:06 PM ESTSpecial Weather StatementFFCForsyth39 min
Dec 10, 12:12 PM ESTSpecial Weather StatementFFCCoweta, Douglas, Fulton, Heard48 min
Dec 10, 3:26 PM ESTSpecial Weather StatementFFCPike49 min
Dec 10, 3:29 PM ESTSpecial Weather StatementFFCMarion31 min
Dec 10, 3:58 PM ESTSpecial Weather StatementFFCMarion47 min
Dec 10, 4:02 PM ESTSevere Thunderstorm WarningFFCGreene, Hancock, Morgan, Putnam43 min

Nearby

Special Weather Statements in Georgia, 2012Every special weather statement in 2012

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.