Alert archive / Georgia / Special Weather Statements in 2011
Special Weather Statement, NWS Atlanta, GA
NWS Atlanta, GA issued this special weather statement at Sep 27, 2011, 5:34 PM EDT for Morgan County, Oconee County, Georgia. It was in force for 26 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
- Sep 27, 2011, 5:34 PM EDT (21:34 UTC)
- Expired
- Sep 27, 2011, 6:00 PM EDT
- In force
- 26 min
- Issued by
- NWS Atlanta, GA
Counties Morgan County, GA, Oconee County, GA
The radar
The Atlanta radar (KFFC), 103 km from the middle of the area, began a volume at 21:35 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, 9.6 hours before the alert went out and 97 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.
- Mixed-layer CAPE
- 1343 J/kg
- Mixed-layer CIN
- -39 J/kg
- Mixed-layer LCL
- 839 m above ground
- 0-6 km bulk shear
- 30 kt
- 0-1 km storm-relative helicity
- 107 m²/s²
- 0-3 km storm-relative helicity
- 119 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 1.9
The text
As transmitted, in the capitals the NWS used until 2016.
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</html>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 Sep 27, 3:05 PM EDT, 2 hours 29 minutes earlier.
Area forecast discussion, Sep 27, 3:05 PM EDT, 2 hours 29 minutes before
AREA FORECAST DISCUSSION NATIONAL WEATHER SERVICE PEACHTREE CITY GA 305 PM EDT TUE SEP 27 2011 .SHORT TERM /TONIGHT THROUGH THURSDAY/... WEAK SLOW MOVING COLD FRONT ACROSS CENTRAL GA THE MAIN CONCERN. PLENTY OF MOISTURE AND INSTABILITY ASSOCIATED FOR SCATTERED SHOWERS AND THUNDERSTORMS ACROSS CENTRAL GA INTO TONIGHT. OVERALL ACTIVITY SHOULD DIMINISH OVERNIGHT BUT MAY NOT COMPLETELY END DUE TO WEAK SHORT WAVE ACTIVITY. BEST CHANCES FOR SHOWERS/THUNDERSTORMS WILL BE OVER CENTRAL GA FOR WEDNESDAY...MAINLY IN THE AFTERNOON/EVENING. THE BEST AREA WILL GREATLY DEPEND ON HOW FAR S THE FRONT GETS OVER THE CWA AND WHEN. MOISTURE AND INSTABILITY LOOK TO DIMINISH FOR THURSDAY WITH THE AFFECTS OF THE FRONT SHIFTING EAST AND SOUTH OF THE AREA...SO NO POPS WILL BE IN THE FORECAST FOR THURSDAY. A DRY OR MOSTLY DRY COLD FRONT MOVES INTO N GA THURSDAY NIGHT. AT THIS TIME...NO POPS WILL BE IN THE FORECAST. FORECAST LOW TEMPERATURES RUNNING 4 TO 7 DEGREES ABOVE NORMAL TONIGHT GENERALLY FAVORING THE WARM SIDE OF GUIDANCE....AND CLOSE TO NORMAL WEDNESDAY NIGHT. FORECAST HIGH TEMPERATURES RUNNING 3 TO 5 DEGREES ABOVE NORMAL FOR WEDNESDAY AND THURSDAY GENERALLY TAKING A MODEL BLEND. OVERALL CONFIDENCE IS MEDIUM. .LONG TERM /FRIDAY THROUGH TUESDAY/... NO CHANGES PLANNED TO THE LONG TERM. A DRY/MOSTLY DRY COLD FRONT MOVES ACROSS THE AREA FRIDAY WITH DRY HIGH PRESSURE MOVING TO/OVER THE AREA SATURDAY THROUGH TUESDAY. LOOK FOR TEMPS TO BE NEAR TO 10 DEGREES BELOW NORMAL MOST PLACES. && .AVIATION... 18Z UPDATE... AFTERNOON CONVECTION AND MVFR/IFR MORNING FOG/HAZE PRESENT LARGEST FORECAST CHALLENGES IN PERIOD...OTHERWISE VFR. TS EXPECTED TO STAY SOUTH OF ATL TODAY...MCN AND CSG CONVECTIVE FOCUS AS FRONT PASSES. WINDS TO STAY WESTERLY THROUGH THE PERIOD...CONVECTIVE VARIABLE GUSTINESS POSSIBLE. WOULD NOT RULE OUT A STRAY SHOWER AT ANY TAF SITE THIS AFTERNOON. //ATL CONFIDENCE...18Z UPDATE... MEDIUM CONFIDENCE ON MORNING CIGS/VSBYS AND AFTERNOON CONVECTION... HIGH CONFIDENCE ON ALL OTHER ELEMENTS. GFS BUFR AND NAM BUFR DIFFERED SLIGHTLY...HRRR TIMING BEHIND. 10 && .PRELIMINARY POINT TEMPS/POPS... ATHENS 63 85 60 85 / 10 10 10 5 ATLANTA 65 82 62 82 / 20 20 10 5 BLAIRSVILLE 55 76 55 76 / 10 10 10 5 CARTERSVILLE 60 83 56 83 / 10 10 10 5 COLUMBUS 68 87 65 86 / 40 30 10 5 GAINESVILLE 63 82 61 81 / 10 10 10 5 MACON 67 87 62 86 / 30 30 10 5 ROME 60 83 57 83 / 10 10 10 5 PEACHTREE CITY 62 82 58 83 / 20 20 10 5 VIDALIA 67 87 66 88 / 30 40 30 10 && .FFC WATCHES/WARNINGS/ADVISORIES... NONE. && BDL
Hazardous weather outlook, Sep 27, 11:30 AM EDT, 6 hours 4 minutes before
HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE PEACHTREE CITY GA 1130 AM EDT TUE SEP 27 2011 GAZ001>009-011>016-019>025-027-030>039-041>062-066>076-078>086- 089>098-102>113-281530- 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- 1130 AM EDT TUE SEP 27 2011 THIS HAZARDOUS WEATHER OUTLOOK IS FOR NORTH AND CENTRAL GEORGIA. .DAY ONE...THIS AFTERNOON AND TONIGHT ISOLATED TO SCATTERED THUNDERSTORMS POSSIBLE TODAY ACROSS NORTH AND CENTRAL GEORGIA. .SYNOPSIS... A FRONTAL BOUNDARY WILL PUSH THROUGH NORTH CENTRAL GEORGIA TODAY AND SLOWLY MEANDER SOUTHWARD OVER THE NEXT FEW DAYS. .PRIMARY HAZARDS... THE PRIMARY HAZARDS WILL BE OCCASIONAL CLOUD TO GROUND LIGHTNING AND HEAVY RAIN OVER PORTIONS OF NORTH AND CENTRAL GEORGIA TODAY. .DISCUSSION... A FRONTAL BOUNDARY HAS PUSHED INTO THE PEACH STATE...LOCATED ALONG A LINE FROM ATHENS TO LAGRANGE. BEST MOISTURE AND INSTABILITIES WILL REMAIN OVER CENTRAL GEORGIA...AND MOST LIKELY AREA FOR DEVELOPMENT OF THUNDERSTORMS WILL BE SOUTH OF A LINE FROM CARROLLTON TO WARRENTON. ISOLATED THUNDERSTORMS ARE POSSIBLE NORTH OF THIS LINE...BUT GENERALLY SOUTH OF A ROME TO ATHENS LINE. WITH CAPE VALUES BETWEEN 1500 AND 2000 J/KG ACROSS CENTRAL GEORGIA...AND LIFTED INDEX VALUES BETWEEN -2 AND -4...A FEW STORMS MAY BE STRONG...AND ISOLATED SEVERE STORMS ARE POSSIBLE. POTENTIALLY HEAVY RAIN IS POSSIBLE WITH THUNDERSTORMS...AND ALTHOUGH MOST AREAS SHOULD BE ABLE TO HANDLE 2 TO 3 INCHES OR MORE...LOCALIZED FLOODING MAY OCCUR. .DAYS TWO THROUGH SEVEN...WEDNESDAY THROUGH MONDAY THERE IS A CHANCE OF THUNDERSTORMS WEDNESDAY AND EARLY THURSDAY. .SPOTTER INFORMATION STATEMENT... SPOTTER ACTIVATION IS NOT EXPECTED THROUGH TONIGHT. 10
In the hours before
Special weather statement, Sep 27, 4:59 PM EDT, 35 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE PEACHTREE CITY GA
459 PM EDT TUE SEP 27 2011
GAZ048-058-059-272130-
459 PM EDT TUE SEP 27 2011
...SIGNIFICANT WEATHER ADVISORY FOR EXCESSIVE LIGHTNING IN NEWTON...
BUTTS AND JASPER COUNTIES UNTIL 530 PM EDT...
AT 457 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
STRONG THUNDERSTORM OVER TURTLE COVE...MOVING EAST AT 30 MPH.
WIND GUSTS OF 40 MPH ARE LIKELY AS THIS STORM MOVES ACROSS NEWTON...
BUTTS AND JASPER COUNTIES THROUGH 530 PM EDT. SOME LOCATIONS IN THE
PATH OF THE STORM INCLUDE TURTLE COVE...NORTH ALCOVY...STARK...
WORTHVILLE...INDIAN SPRINGS STATE PARK...FLOVILLA...JACKSON...
STEWART...EUDORA...MONTICELLO...CALVIN...NEWBORN...FARRAR AND SHADY
DALE.
&&
LAT...LON 3322 8394 3336 8401 3338 8399 3352 8368
3352 8367 3335 8354
TIME...MOT...LOC 2058Z 248DEG 26KT 3337 8381Local storm report, Sep 27, 5:12 PM EDT, 22 minutes before
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</html>Local storm report, Sep 27, 5:18 PM EDT, 16 minutes before
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</html>Local storm report, Sep 27, 5:28 PM EDT, 6 minutes before
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</html>Local storm report, Sep 27, 5:30 PM EDT, 4 minutes before
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</html>Special weather statement, Sep 27, 5:34 PM EDT, 0 minutes before
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</html>The office that day
Everything else NWS Atlanta, GA issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Sep 26, 8:18 PM EDT | Special Weather Statement | FFC | White | 27 min |
| Sep 27, 2:35 PM EDT | Special Weather Statement | FFC | Macon, Schley | 25 min |
| Sep 27, 2:39 PM EDT | Special Weather Statement | FFC | Crawford | 36 min |
| Sep 27, 3:05 PM EDT | Special Weather Statement | FFC | Wilkinson | 25 min |
| Sep 27, 3:34 PM EDT | Special Weather Statement | FFC | Washington | 26 min |
| Sep 27, 3:42 PM EDT | Severe Thunderstorm Warning | FFC | Bibb, Jones, Twiggs | 48 min |
| Sep 27, 3:56 PM EDT | Severe Thunderstorm Warning | FFC | Twiggs | 34 min |
| Sep 27, 4:14 PM EDT | Special Weather Statement | FFC | Wilkinson | 31 min |
| Sep 27, 4:27 PM EDT | Severe Thunderstorm Warning | FFC | Hancock, Washington | 33 min |
| Sep 27, 4:37 PM EDT | Severe Thunderstorm Warning | FFC | Butts, Jasper, Newton | 23 min |
| Sep 27, 4:42 PM EDT | Severe Thunderstorm Warning | FFC | Emanuel, Jefferson | 48 min |
| Sep 27, 4:50 PM EDT | Special Weather Statement | FFC | Johnson | 25 min |
| Sep 27, 4:53 PM EDT | Special Weather Statement | FFC | Glascock | 22 min |
| Sep 27, 4:59 PM EDT | Special Weather Statement | FFC | Butts, Jasper | 31 min |
| Sep 27, 5:09 PM EDT | Severe Thunderstorm Warning | FFC | Emanuel | 36 min |
| Sep 27, 5:37 PM EDT | Special Weather Statement | FFC | Butts | 23 min |
| Sep 27, 6:29 PM EDT | Special Weather Statement | FFC | Oglethorpe | 31 min |
| Sep 27, 7:24 PM EDT | Special Weather Statement | FFC | Wilkes | 36 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; radar from the NEXRAD Level II archive.