Alert archive / Georgia / Special Weather Statements in 2011

Special Weather Statement, NWS Atlanta, GA

June 28, 2011Harris County, Georgia

NWS Atlanta, GA issued this special weather statement at Jun 28, 2011, 12:57 PM EDT for Harris County, Georgia. It was in force for 33 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
Jun 28, 2011, 12:57 PM EDT (16:57 UTC)
Expired
Jun 28, 2011, 1:30 PM EDT
In force
33 min
Issued by
NWS Atlanta, GA

County Harris County, GA

The nearest sounding before it

Peachtre/Fal Fld, GA (KFFC), launched 12:00Z, 5.0 hours before the alert went out and 87 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 2011-06-28Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 2253 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 2011-06-28The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 8 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
2253 J/kg
Mixed-layer CIN
-49 J/kg
Mixed-layer LCL
734 m above ground
0-6 km bulk shear
16 kt
0-1 km storm-relative helicity
8 m²/s²
0-3 km storm-relative helicity
-4 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 Jun 28, 10:32 AM EDT, 2 hours 25 minutes earlier.

Area forecast discussion, Jun 28, 10:32 AM EDT, 2 hours 25 minutes before
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Hazardous weather outlook, Jun 28, 5:15 AM EDT, 7 hours 42 minutes before
HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE PEACHTREE CITY GA
515 AM EDT TUE JUN 28 2011

GAZ001>009-011>016-019>025-027-030>039-041>062-066>076-078>086-
089>098-102>113-290915-
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-
515 AM EDT TUE JUN 28 2011

THIS HAZARDOUS WEATHER OUTLOOK IS FOR NORTH AND CENTRAL GEORGIA.

.DAY ONE...TODAY AND TONIGHT
ISOLATED TO SCATTERED SEVERE THUNDERSTORMS EXPECTED THIS
AFTERNOON AND TONIGHT

.SYNOPSIS...
A WEAKENING COLD FRONT OVER THE TENNESSEE RIVER VALLEY WILL SINK
SOUTH INTO CENTRAL GEORGIA THROUGH TONIGHT.

.PRIMARY HAZARDS...
THE PRIMARY HAZARD FROM SCATTERED TO ISOLATED SEVERE THUNDERSTORMS
WILL BE FREQUENT CLOUD TO GROUND LIGHTNING...GUSTY WINDS TO 60
MPH...AND LOCALLY HEAVY RAIN. THE BEST LOCATION FOR SCATTERED SEVERE
STORMS WILL BE ACROSS NORTH GEORGIA WITH ISOLATED SEVERE STORMS
ACROSS CENTRAL GEORGIA THIS AFTERNOON AND TONIGHT.

.DISCUSSION...
A WEAKENING COLD FRONT OVER THE TENNESSEE RIVER VALLEY WILL SINK
SOUTH INTO CENTRAL GEORGIA THROUGH TONIGHT. A FEW WEAK WAVES ALONG
THE FRONT WILL ALSO MOVE INTO THE STATE BRINGING ISOLATED TO
SCATTERED SEVERE STORMS TO THE AREA. INSTABILITY INDICES INCREASE
THIS AFTERNOON WITH CAPES EXPECTED IN THE 2000 TO 2500 RANGE
ACROSS NORTH AND CENTRAL GEORGIA. THERE IS AN UPPER LEVEL RIDGE
BUILDING INTO THE REGION FROM THE WEST...BUT IT DOES NOT LOOK LIKE
IT WILL BE STRONG ENOUGH TO INHIBIT SEVERE WEATHER.

.DAYS TWO THROUGH SEVEN...WEDNESDAY THROUGH MONDAY
ISOLATED TO SCATTERED THUNDERSTORMS EXPECTED WEDNESDAY AND
THURSDAY...AND AGAIN ON MONDAY. NO HAZARDOUS WEATHER EXPECTED
FRIDAY THROUGH SUNDAY.

.SPOTTER INFORMATION STATEMENT...
SPOTTER ACTIVATION IS NOT EXPECTED THROUGH TONIGHT.

In the hours before

Special weather statement, Jun 28, 9:38 AM EDT, 3 hours 19 minutes before
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Local storm report, Jun 28, 9:43 AM EDT, 3 hours 14 minutes before
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Local storm report, Jun 28, 9:46 AM EDT, 3 hours 11 minutes before
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Local storm report, Jun 28, 10:20 AM EDT, 2 hours 37 minutes before
PRELIMINARY LOCAL STORM REPORT...CORRECTED
NATIONAL WEATHER SERVICE PEACHTREE CITY GA
1020 AM EDT TUE JUN 28 2011

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0830 AM     TSTM WND DMG     5 WNW TRION             34.57N 85.40W
06/28/2011                   CHATTOOGA          GA   EMERGENCY MNGR

            CHATTOOGA COUNTY EMERGENCY MANAGEMENT REPORTS A TREE DOWN
            ON HEMPHILL ROAD.

0840 AM     TSTM WND DMG     1 NNE SUMMERVILLE       34.50N 85.34W
06/28/2011                   CHATTOOGA          GA   EMERGENCY MNGR

            CHATTOOGA COUNTY EMERGENCY MANAGEMENT REPORTS A DOWNED
            TREE ON GOODWIN DRIVE AT WYLAN HILLS.

&&

RGARCIA
Special weather statement, Jun 28, 12:57 PM EDT, 0 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE PEACHTREE CITY GA
1257 PM EDT TUE JUN 28 2011

GAZ078-281730-
1257 PM EDT TUE JUN 28 2011

...SIGNIFICANT WEATHER ADVISORY FOR PEA SIZED HAIL AND 40 MPH WINDS
IN HARRIS COUNTY UNTIL 130 PM EDT...

AT 1254 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
STRONG THUNDERSTORM 5 MILES WEST OF WHITESVILLE-PINE LAKE...MOVING
SOUTHEAST AT 15 MPH.

THIS STORM HAS THE POTENTIAL TO PRODUCE PEA SIZED HAIL...FREQUENT
CLOUD TO GROUND LIGHTNING AND WIND GUSTS TO 40 MPH AS IT MOVES ACROSS
HARRIS COUNTY THROUGH 130 PM EDT. SOME LOCATIONS IN THE PATH OF THIS
STORM INCLUDE JONES CROSSROADS...WHITESVILLE-PINE LAKE...LAKE
HARDING...MOUNTAIN HILL...MULBERRY GROVE...FORTSON...CATAULA AND
HAMILTON. BRIEF HEAVY DOWNPOURS WILL CAUSE PONDING OF WATER ON
ROADWAYS.

&&

LAT...LON 3287 8503 3272 8474 3258 8486 3258 8490
      3261 8491 3261 8503 3269 8512 3273 8512
      3275 8515 3278 8513 3281 8517 3284 8516
      3287 8519
TIME...MOT...LOC 1658Z 307DEG 15KT 3280 8512

The office that day

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

IssuedProductOfficeCountiesLasted
Jun 28, 1:20 AM EDTSpecial Weather StatementFFCLumpkin, White25 min
Jun 28, 1:45 AM EDTSpecial Weather StatementFFCLumpkin, White30 min
Jun 28, 2:13 AM EDTSpecial Weather StatementFFCWhite47 min
Jun 28, 3:32 AM EDTSpecial Weather StatementFFCTowns28 min
Jun 28, 4:02 AM EDTSpecial Weather StatementFFCTowns28 min
Jun 28, 9:38 AM EDTSpecial Weather StatementFFCPaulding, Polk22 min
Jun 28, 1:43 PM EDTSpecial Weather StatementFFCTalbot47 min
Jun 28, 1:50 PM EDTSpecial Weather StatementFFCTelfair25 min
Jun 28, 2:20 PM EDTSpecial Weather StatementFFCCrawford25 min
Jun 28, 2:32 PM EDTSpecial Weather StatementFFCChattahoochee, Muscogee43 min
Jun 28, 2:42 PM EDTSevere Thunderstorm WarningFFCChattahoochee, Marion22 min
Jun 28, 3:12 PM EDTSpecial Weather StatementFFCHouston33 min
Jun 28, 3:14 PM EDTSpecial Weather StatementFFCEmanuel31 min
Jun 28, 3:35 PM EDTSpecial Weather StatementFFCStewart25 min
Jun 28, 3:41 PM EDTSpecial Weather StatementFFCWilcox34 min
Jun 28, 4:30 PM EDTSpecial Weather StatementFFCEmanuel, Montgomery, Toombs, Treutlen45 min
Jun 28, 4:41 PM EDTSpecial Weather StatementFFCCrisp49 min
Jun 28, 4:50 PM EDTSevere Thunderstorm WarningFFCCrisp, Sumter40 min
Jun 28, 4:55 PM EDTSpecial Weather StatementFFCPulaski50 min
Jun 28, 5:01 PM EDTSpecial Weather StatementFFCToombs44 min
Jun 28, 5:45 PM EDTSpecial Weather StatementFFCLaurens30 min
Jun 28, 6:01 PM EDTSevere Thunderstorm WarningFFCLaurens29 min
Jun 28, 6:16 PM EDTSpecial Weather StatementFFCWheeler44 min

Nearby

Special Weather Statements in Georgia, 2011Every special weather statement in 2011

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.