Alert archive / Georgia / Special Weather Statements in 2015

Special Weather Statement, NWS Atlanta, GA

May 12, 2015Glascock County, Georgia

NWS Atlanta, GA issued this special weather statement at May 12, 2015, 3:09 PM EDT for Glascock County, Georgia. It was in force for 36 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
May 12, 2015, 3:09 PM EDT (19:09 UTC)
Expired
May 12, 2015, 3:45 PM EDT
In force
36 min
Issued by
NWS Atlanta, GA

County Glascock County, GA

The nearest sounding before it

Charleston AFB, SC (KCHS), launched 12:00Z, 7.2 hours before the alert went out and 224 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, Charleston AFB, SC at 12:00Z on 2015-05-12Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 716 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, Charleston AFB, SC at 12:00Z on 2015-05-12The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 60 square meters per square second.1939Sfc1 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
716 J/kg
Mixed-layer CIN
-87 J/kg
Mixed-layer LCL
987 m above ground
0-6 km bulk shear
11 kt
0-1 km storm-relative helicity
60 m²/s²
0-3 km storm-relative helicity
52 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.

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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 May 12, 1:51 PM EDT, 1 hour 18 minutes earlier.

Area forecast discussion, May 12, 1:51 PM EDT, 1 hour 18 minutes before
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Hazardous weather outlook, May 12, 1:32 AM EDT, 13 hours 37 minutes before
HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE PEACHTREE CITY GA
132 AM EDT TUE MAY 12 2015

GAZ001>009-011>016-019>025-027-030>039-041>062-066>076-078>086-
089>098-102>113-131100-
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-
132 AM EDT TUE MAY 12 2015

THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF NORTH AND CENTRAL GEORGIA.

.DAY ONE...TODAY AND TONIGHT...

...ISOLATED TO SCATTERED THUNDERSTORMS POSSIBLE TODAY...

WEATHER HAZARDS EXPECTED...
BRIEF WIND GUSTS TO 45 MPH... OCCASIONAL CLOUD TO GROUND
LIGHTNING AND LOCALLY HEAVY RAIN ARE POSSIBLE WITH ANY THUNDERSTORM
THAT DEVELOPS ALONG AND AHEAD OF A COLD FRONT TODAY.

DISCUSSION...
A COLD FRONT WILL BRING AN INCREASING RISK OF ISOLATED TO
SCATTERED THUNDERSTORMS TO MAINLY NORTH GEORGIA THIS MORNING...
THEN CENTRAL GEORGIA DURING THE AFTERNOON AND EVENING.
INSTABILITIES WILL BE MARGINAL... AND ALTHOUGH A FEW STORMS COULD
BE STRONG WITH GUSTY WINDS... SEVERE THUNDERSTORMS ARE NOT
EXPECTED AT THIS TIME.

.DAYS TWO THROUGH SEVEN...WEDNESDAY THROUGH MONDAY...

BEHIND A COLD FRONT... DRY CONDITIONS ARE EXPECTED FOR WEDNESDAY.
A DEVELOPING MOIST SOUTHERLY FLOW WILL BRING A CHANCE OF
THUNDERSTORMS TO PARTS OF CENTRAL GEORGIA ON THURSDAY... THEN
MUCH OF NORTH AND CENTRAL GEORGIA FRIDAY THROUGH MONDAY. AT THIS
TIME... SEVERE STORMS ARE NOT EXPECTED.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION IS NOT REQUESTED BUT SPOTTERS ARE ENCOURAGED
TO SUBMIT ANY STORM REPORTS THROUGH THE WEB BY GOING TO
WEATHER.GOV/ATLANTA.

In the hours before

Special weather statement, May 12, 2:51 PM EDT, 18 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE PEACHTREE CITY GA
251 PM EDT TUE MAY 12 2015

GAZ110-121915-
TELFAIR GA-
251 PM EDT TUE MAY 12 2015

...SIGNIFICANT WEATHER ADVISORY FOR 40 MPH WINDS IN TELFAIR COUNTY
UNTIL 315 PM EDT...

AT 250 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
STRONG THUNDERSTORM 8 MILES WEST OF LUMBER CITY...OR 11 MILES SOUTH
OF MCRAE...MOVING NORTHEAST AT 10 MPH.

WIND GUSTS OF 40 MPH ARE LIKELY WITH THIS STORM AS THIS STORM MOVES
ACROSS TELFAIR COUNTY THROUGH 315 PM EDT.

SOME LOCATIONS IN THE PATH OF THE STORM INCLUDE
LUMBER CITY AND TOWNS.

THESE WIND GUSTS MAY PRODUCE MINOR DAMAGE TO TREE LIMBS AND BLOW
LIGHT...UNSECURED OBJECTS AROUND.

LAT...LON 3192 8289 3204 8280 3202 8278 3201 8273
      3196 8269 3192 8265 3192 8268 3190 8269
      3190 8270 3189 8271 3188 8274 3186 8276
      3186 8285
TIME...MOT...LOC 1850Z 239DEG 7KT 3192 8283
Special weather statement, May 12, 3:09 PM EDT, 0 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE PEACHTREE CITY GA
309 PM EDT TUE MAY 12 2015

GAZ062-075-076-121945-
GLASCOCK GA-JEFFERSON GA-WARREN GA-
309 PM EDT TUE MAY 12 2015

...SIGNIFICANT WEATHER ADVISORY FOR 40 MPH WINDS IN GLASCOCK...
JEFFERSON AND WARREN COUNTIES UNTIL 345 PM EDT...

AT 309 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
STRONG THUNDERSTORM OVER EDGEHILL...OR NEAR GIBSON...MOVING EAST AT
25 MPH.

WIND GUSTS OF 40 MPH ARE LIKELY WITH THIS STORM AS THIS STORM MOVES
ACROSS GLASCOCK...JEFFERSON AND WARREN COUNTIES THROUGH 345 PM EDT.

SOME LOCATIONS IN THE PATH OF THE STORM INCLUDE
WRENS...STAPLETON...AVERA...EDGE HILL...EDGEHILL...STELLAVILLE AND
MATTHEWS.

THESE WIND GUSTS MAY PRODUCE MINOR DAMAGE TO TREE LIMBS AND BLOW
LIGHT...UNSECURED OBJECTS AROUND.

LAT...LON 3315 8227 3311 8228 3311 8262 3317 8264
      3332 8241 3331 8238 3331 8234 3330 8232
      3330 8231 3316 8226
TIME...MOT...LOC 1909Z 252DEG 20KT 3316 8260

The office that day

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

IssuedProductOfficeCountiesLasted
May 12, 3:55 AM EDTSpecial Weather StatementFFCHaralson50 min
May 12, 4:31 AM EDTSpecial Weather StatementFFCPolk29 min
May 12, 4:36 AM EDTSpecial Weather StatementFFCPaulding24 min
May 12, 4:57 AM EDTSpecial Weather StatementFFCBartow48 min
May 12, 5:05 AM EDTSpecial Weather StatementFFCPaulding10 min
May 12, 5:27 AM EDTSpecial Weather StatementFFCCherokee48 min
May 12, 2:51 PM EDTSpecial Weather StatementFFCTelfair24 min
May 12, 3:24 PM EDTSpecial Weather StatementFFCBleckley36 min
May 12, 3:30 PM EDTSpecial Weather StatementFFCBleckley30 min
May 12, 3:44 PM EDTSpecial Weather StatementFFCJefferson46 min
May 12, 3:59 PM EDTSpecial Weather StatementFFCLaurens31 min
May 12, 4:27 PM EDTSpecial Weather StatementFFCDodge, Laurens, Treutlen, Wilcox48 min
May 12, 5:03 PM EDTSpecial Weather StatementFFCEmanuel27 min
May 12, 5:13 PM EDTSpecial Weather StatementFFCTelfair32 min
May 12, 5:29 PM EDTSpecial Weather StatementFFCEmanuel31 min

Nearby

Special Weather Statements in Georgia, 2015Every special weather statement in 2015

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.