Alert archive / Georgia / Special Weather Statements in 2013

Special Weather Statement, NWS Atlanta, GA

February 12, 2013Warren County, Georgia

NWS Atlanta, GA issued this special weather statement at Feb 12, 2013, 11:45 PM EST for Warren County, Georgia. It was in force for 30 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: Feb 12, 2013, 11:45 PM EST (04:45 UTC)
Expired: Feb 13, 2013, 12:15 AM EST
In force: 30 min
Issued by: NWS Atlanta, GA

County Warren County, GA

The radar

The Robins AFB radar (KJGX), 96 km from the middle of the area, began a volume at 04:45 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

Jacksonville, FL (KJAX), launched 00:00Z, 4.8 hours before the alert went out and 343 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-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

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: 218 J/kg
Mixed-layer CIN: -93 J/kg
Mixed-layer LCL: 887 m above ground
0-6 km bulk shear: 65 kt
0-1 km storm-relative helicity: 186 m²/s²
0-3 km storm-relative helicity: 359 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 1.6

Open this sounding in Storm Lab

The text

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

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What forecasters said that day

The local office's own words before this special weather statement went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.

NWS Atlanta, GA wrote its last area forecast discussion before this special weather statement went out at Feb 12, 7:12 PM EST, 4 hours 33 minutes earlier.

Area forecast discussion, Feb 12, 7:12 PM EST, 4 hours 33 minutes before

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Hazardous weather outlook, Feb 12, 10:28 PM EST, 1 hour 17 minutes before

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE PEACHTREE CITY GA
1028 PM EST TUE FEB 12 2013

GAZ001>009-011>016-019>025-027-030>039-041>062-066>076-078>086-
089>098-102>113-140330-
BALDWIN-BANKS-BARROW-BARTOW-BIBB-BLECKLEY-BUTTS-CARROLL-CATOOSA-
CHATTAHOOCHEE-CHATTOOGA-CHEROKEE-CLARKE-CLAYTON-COBB-COWETA-
CRAWFORD-CRISP-DADE-DAWSON-DEKALB-DODGE-DOOLY-DOUGLAS-EMANUEL-
FANNIN-FAYETTE-FLOYD-FORSYTH-GILMER-GLASCOCK-GORDON-GREENE-
GWINNETT-HALL-HANCOCK-HARALSON-HARRIS-HEARD-HENRY-HOUSTON-JACKSON-
JASPER-JEFFERSON-JOHNSON-JONES-LAMAR-LAURENS-LUMPKIN-MACON-
MADISON-MARION-MERIWETHER-MONROE-MONTGOMERY-MORGAN-MURRAY-
MUSCOGEE-NEWTON-NORTH FULTON-OCONEE-OGLETHORPE-PAULDING-PEACH-
PICKENS-PIKE-POLK-PULASKI-PUTNAM-ROCKDALE-SCHLEY-SOUTH FULTON-
SPALDING-STEWART-SUMTER-TALBOT-TALIAFERRO-TAYLOR-TELFAIR-TOOMBS-
TOWNS-TREUTLEN-TROUP-TWIGGS-UNION-UPSON-WALKER-WALTON-WARREN-
WASHINGTON-WEBSTER-WHEELER-WHITE-WHITFIELD-WILCOX-WILKES-
WILKINSON-
1028 PM EST TUE FEB 12 2013

THIS HAZARDOUS WEATHER OUTLOOK IS FOR NORTH AND CENTRAL GEORGIA.

.DAY ONE...TONIGHT...

...ADDITIONAL FLOODING IS POSSIBLE ACROSS CENTRAL AND PARTS OF NORTH
GEORGIA TONIGHT...

...ISOLATED SEVERE THUNDERSTORMS ARE POSSIBLE OVERNIGHT...

DISCUSSION...
A STATIONARY FRONT WILL REMAIN ACROSS NORTH FLORIDA THROUGH
TONIGHT. GULF MOISTURE WILL CONTINUE TO OVERRUN THE FRONT AND INTO
NORTH AND CENTRAL GEORGIA. THIS WILL PERIODS OF RAIN TO THE
REGION. SOME OF THE RAIN COULD BE HEAVY...ESPECIALLY ACROSS
CENTRAL AND PARTS OF NORTH GEORGIA. FOR MORE INFORMATION ON THE
FLOODING POTENTIAL...SEE THE LATEST FLOOD WATCH STATEMENT.

AN UPPER LEVEL LOW WILL APPROACH THE AREA TONIGHT. IN RESPONSE TO
THIS LOW...THE STATIONARY BOUNDARY SHOULD RETREAT NORTH OVERNIGHT
AS A WARM FRONT. LOW LEVEL AND DEEP LAYER SHEAR ASSOCIATED WITH
THIS WARM FRONT AND THE RETURN OF LOW LEVEL MOISTURE COULD LEAD TO
THE DEVELOPMENT OF STRONG TO ISOLATED SEVERE THUNDERSTORMS. AT
THIS TIME...IT APPEARS THAT DAMAGING WINDS AND HAIL WILL BE THE
PRIMARY THREATS.

.DAYS TWO THROUGH SEVEN...WEDNESDAY THROUGH MONDAY...
THUNDERSTORMS ARE POSSIBLE DURING THE DAY ON WEDNESDAY. SOME OF
THESE STORMS COULD BE STRONG TO SEVERE. THE THREAT OF SEVERE
WEATHER WILL DECREASE AS THE COLD FRONT SWEEPS THROUGH THE STATE
TOMORROW DURING THE DAY.

ALSO...AN ARCTIC COLD FRONT WILL MOVE ACROSS NORTH AND CENTRAL
GEORGIA FRIDAY NIGHT AND SATURDAY. RESIDUAL MOISTURE FROM THE
FRONT COULD PRODUCE LIGHT SNOW ACROSS THE NORTHEAST MOUNTAINS
WHICH COULD MAKE ROADS SLICK SATURDAY AND INTO SATURDAY NIGHT.

.SPOTTER INFORMATION STATEMENT...
SPOTTERS ACTIVATION IS NOT REQUESTED BUT SPOTTERS ARE ENCOURAGED
TO SUBMIT REPORTS OF SEVERE WEATHER THROUGH THE WEB BY GOING TO
WEATHER.GOV/ATLANTA.

In the hours before

Special weather statement, Feb 12, 10:56 PM EST, 49 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE PEACHTREE CITY GA
1056 PM EST TUE FEB 12 2013

GAZ056-058-059-070-071-130430-
1056 PM EST TUE FEB 12 2013

...SIGNIFICANT WEATHER ADVISORY FOR PEA SIZED HAIL AND 35 MPH WINDS
IN SPALDING...MONROE...LAMAR...BUTTS AND JASPER COUNTIES UNTIL 1130
PM EST...

AT 1049 PM EST...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
STRONG THUNDERSTORM OVER CHAPPEL MILL...MOVING EAST AT 70 MPH.

THIS STORM HAS THE POTENTIAL TO PRODUCE PEA SIZED HAIL...OCCASIONAL
CLOUD TO GROUND LIGHTNING AND WIND GUSTS TO 35 MPH AS IT MOVES ACROSS
SPALDING...MONROE...LAMAR...BUTTS AND JASPER COUNTIES THROUGH 1130 PM
EST. SOME LOCATIONS IN THE PATH OF THIS STORM INCLUDE BLOUNT...HIGH
FALLS STATE PARK...CHAPPEL MILL...MCKIBBEN...INDIAN SPRINGS STATE
PARK...JACKSON...STARK...FLOVILLA...MCELHENEYS CROSSROADS...EUDORA...
TURTLE COVE...CALVIN...ADGATEVILLE...MONTICELLO AND PIEDMONT.

THESE STORMS ARE NOT EXPECTED TO REACH SEVERE THUNDERSTORM
CRITERIA...WHICH IS HAIL THE SIZE OF QUARTERS OR LARGER OR DAMAGING
WIND GUSTS OF 58 MPH OR HIGHER.

&&

LAT...LON 3348 8361 3346 8358 3324 8354 3320 8355
      3317 8416 3324 8417
TIME...MOT...LOC 0356Z 255DEG 65KT 3325 8396

Special weather statement, Feb 12, 11:18 PM EST, 27 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE PEACHTREE CITY GA
1118 PM EST TUE FEB 12 2013

GAZ050-060-061-130445-
1118 PM EST TUE FEB 12 2013

...SIGNIFICANT WEATHER ADVISORY FOR PEA SIZED HAIL AND 35 MPH WINDS
IN PUTNAM...GREENE AND HANCOCK COUNTIES UNTIL 1145 PM EST...

AT 1114 PM EST...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
STRONG THUNDERSTORM 5 MILES WEST OF WILLARD...MOVING EAST AT 80 MPH.

THIS STORM HAS THE POTENTIAL TO PRODUCE PEA SIZED HAIL...OCCASIONAL
CLOUD TO GROUND LIGHTNING AND WIND GUSTS TO 35 MPH AS IT MOVES ACROSS
PUTNAM...GREENE AND HANCOCK COUNTIES THROUGH 1145 PM EST. SOME
LOCATIONS IN THE PATH OF THIS STORM INCLUDE WARFIELD...CENTRAL
GEORGIA EXPERIMENT STATION...WILLARD...EATONTON...ROCK EAGLE 4-H
CENTER...ROCKVILLE...OCONEE SPRINGS PARK...PHOENIX...REYNOLDS
PLANTATION...SHOULDERBONE...DEVEREUX...LIBERTY...SPARTA...WHITE
PLAINS AND SPRINGFIELD.

THESE STORMS ARE NOT EXPECTED TO REACH SEVERE THUNDERSTORM
CRITERIA...WHICH IS HAIL THE SIZE OF QUARTERS OR LARGER OR DAMAGING
WIND GUSTS OF 58 MPH OR HIGHER.

&&

LAT...LON 3320 8285 3312 8292 3305 8310 3315 8311
      3319 8328 3328 8323 3322 8354 3340 8354
      3341 8353 3353 8299 3349 8298 3347 8301
      3345 8299 3345 8287 3343 8282 3327 8278
      3324 8275
TIME...MOT...LOC 0417Z 257DEG 70KT 3332 8351

Special weather statement, Feb 12, 11:45 PM EST, 0 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE PEACHTREE CITY GA
1145 PM EST TUE FEB 12 2013

GAZ051-061-062-130515-
1145 PM EST TUE FEB 12 2013

...SIGNIFICANT WEATHER ADVISORY FOR PEA SIZED HAIL AND 35 MPH WINDS
IN WARREN...TALIAFERRO AND HANCOCK COUNTIES UNTIL 1215 AM EST...

AT 1138 PM EST...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
STRONG THUNDERSTORM 10 MILES WEST OF SPRINGFIELD...MOVING EAST AT 70
MPH.

THIS STORM HAS THE POTENTIAL TO PRODUCE PEA SIZED HAIL...OCCASIONAL
CLOUD TO GROUND LIGHTNING AND WIND GUSTS TO 35 MPH AS IT MOVES ACROSS
WARREN...TALIAFERRO AND HANCOCK COUNTIES THROUGH 1215 AM EST. SOME
LOCATIONS IN THE PATH OF THIS STORM INCLUDE SPRINGFIELD...POWELTON...
BARNETT...CADLEY...CAMAK...WARRENTON...NORWOOD AND MESENA.

THESE STORMS ARE NOT EXPECTED TO REACH SEVERE THUNDERSTORM
CRITERIA...WHICH IS HAIL THE SIZE OF QUARTERS OR LARGER OR DAMAGING
WIND GUSTS OF 58 MPH OR HIGHER.

&&

LAT...LON 3334 8313 3337 8314 3348 8300 3358 8263
      3346 8258 3342 8255 3341 8255
TIME...MOT...LOC 0444Z 257DEG 61KT 3342 8300

The office that day

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

Issued	Product	Office	Counties	Lasted
Feb 12, 10:56 PM EST	Special Weather Statement	FFC	Butts, Jasper	34 min
Feb 12, 11:18 PM EST	Special Weather Statement	FFC	Hancock, Putnam	27 min
Feb 13, 1:07 AM EST	Special Weather Statement	FFC	Jefferson	23 min
Feb 13, 1:32 AM EST	Special Weather Statement	FFC	Jefferson	13 min
Feb 13, 3:16 AM EST	River Flood Warning	FFC	Crawford, Talbot, Taylor, Upson	11 hr

Nearby

Special Weather Statements in Georgia, 2013 Every special weather statement 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.