Alert archive / Georgia / Special Weather Statements in 2011
Special Weather Statement, NWS Atlanta, GA
NWS Atlanta, GA issued this special weather statement at Aug 11, 2011, 1:25 PM EDT for Harris County, Georgia. It was in force for 50 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
- Aug 11, 2011, 1:25 PM EDT (17:25 UTC)
- Expired
- Aug 11, 2011, 2:15 PM EDT
- In force
- 50 min
- Issued by
- NWS Atlanta, GA
County Harris County, GA
The nearest sounding before it
Peachtre/Fal Fld, GA (KFFC), launched 12:00Z, 5.4 hours before the alert went out and 85 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
- 764 J/kg
- Mixed-layer CIN
- -95 J/kg
- Mixed-layer LCL
- 1287 m above ground
- 0-6 km bulk shear
- 21 kt
- 0-1 km storm-relative helicity
- 16 m²/s²
- 0-3 km storm-relative helicity
- 66 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
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 Aug 11, 10:51 AM EDT, 2 hours 34 minutes earlier.
Area forecast discussion, Aug 11, 10:51 AM EDT, 2 hours 34 minutes before
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</html>Hazardous weather outlook, Aug 11, 5:32 AM EDT, 7 hours 53 minutes before
HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE PEACHTREE CITY GA 532 AM EDT THU AUG 11 2011 GAZ001>009-011>016-019>025-027-030>039-041>062-066>076-078>086- 089>098-102>113-120945- 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- 532 AM EDT THU AUG 11 2011 THIS HAZARDOUS WEATHER OUTLOOK IS FOR NORTH AND CENTRAL GEORGIA. .DAY ONE...TODAY AND TONIGHT ISOLATED THUNDERSTORMS POSSIBLE ACROSS NORTH AND CENTRAL GEORGIA. .SYNOPSIS... FRONTAL BOUNDARY ACROSS NORTH GEORGIA WILL PUSH SOUTH THROUGH THE DAY TODAY AS AN UPPER LEVEL DISTURBANCE ENTERS THE REGION. .PRIMARY HAZARDS... THE PRIMARY HAZARDS WILL BE CLOUD TO GROUND LIGHTNING AND GUSTY WINDS. .DISCUSSION... AN UPPER LEVEL DISTURBANCE DROPS DOWN INTO NORTH AND CENTRAL GEORGIA FROM THE TENNESSEE VALLEY TODAY AS FRONTAL BOUNDARY SHIFTS SOUTHWARD. MOST UNSTABLE ATMOSPHERE EXPECTED OVER ALABAMA...THOUGH MODELS INDICATE SOME WEAK TO MODERATE INSTABILITIES OVER NORTH AND CENTRAL GEORGIA. PROVIDED ENOUGH MOISTURE ACROSS THE AREA TODAY...THIS INSTABILITY IS ENOUGH TO PRODUCE ISOLATED THUNDERSTORMS ESPECIALLY ACROSS WEST CENTRAL GEORGIA. THUNDERSTORMS ARE EXPECTED TO REMAIN BELOW SEVERE LIMITS. .DAYS TWO THROUGH SEVEN...FRIDAY THROUGH WEDNESDAY THERE IS A CHANCE OF THUNDERSTORMS EACH DAY. .SPOTTER INFORMATION STATEMENT... SPOTTER ACTIVATION IS NOT EXPECTED THROUGH TONIGHT.
In the hours before
Special weather statement, Aug 11, 1:25 PM EDT, 0 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE PEACHTREE CITY GA
125 PM EDT THU AUG 11 2011
GAZ066-078-111815-
125 PM EDT THU AUG 11 2011
...SIGNIFICANT WEATHER ADVISORY FOR FREQUENT LIGHTNING IN TROUP AND
HARRIS COUNTIES UNTIL 215 PM EDT...
AT 122 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
STRONG THUNDERSTORM OVER WEST POINT...MOVING SOUTHEAST AT 25 MPH.
WIND GUSTS TO 35 MPH WILL BE POSSIBLE WITH THIS STORM. IN
ADDITION...LIGHTNING DETECTION SYSTEMS INDICATE NUMEROUS
CLOUD-TO-GROUND LIGHTNING STRIKES ACROSS TROUP AND HARRIS
COUNTIES...INCLUDING AREAS AROUND WEST POINT...WHITESVILLE-PINE
LAKE...JONES CROSSROADS...MOUNTAIN HILL...MULBERRY
GROVE...HAMILTON...PINE MOUNTAIN VALLEY...FORTSON AND CATAULA.
RESIDENTS IN THIS AREA SHOULD STAY INDOORS. ELECTRICAL APPLIANCES
AND TELEPHONES SHOULD NOT BE USED UNLESS IN AN EMERGENCY.
&&
LAT...LON 3295 8521 3295 8518 3279 8472 3258 8485
3258 8490 3261 8491 3261 8494 3270 8513
3273 8512 3275 8515 3278 8513 3281 8517
3284 8516 3287 8519
TIME...MOT...LOC 1724Z 297DEG 23KT 3284 8517The office that day
Everything else NWS Atlanta, GA issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 11, 1:52 PM EDT | Severe Thunderstorm Warning | FFC | Harris, Meriwether, Troup | 38 min |
| Aug 11, 2:11 PM EDT | Special Weather Statement | FFC | Muscogee | 34 min |
| Aug 11, 2:30 PM EDT | Severe Thunderstorm Warning | FFC | Chattahoochee, Harris, Marion, Muscogee, Talbot, Taylor | 45 min |
| Aug 11, 2:33 PM EDT | Special Weather Statement | FFC | Heard | 42 min |
| Aug 11, 3:07 PM EDT | Special Weather Statement | FFC | Bleckley, Twiggs | 38 min |
| Aug 11, 3:16 PM EDT | Special Weather Statement | FFC | Marion, Schley, Webster | 44 min |
| Aug 11, 3:34 PM EDT | Special Weather Statement | FFC | Bleckley, Laurens | 41 min |
| Aug 11, 4:11 PM EDT | Special Weather Statement | FFC | Dodge | 34 min |
| Aug 11, 4:18 PM EDT | Special Weather Statement | FFC | Crisp | 27 min |
| Aug 11, 4:36 PM EDT | Special Weather Statement | FFC | Crisp, Wilcox | 39 min |
| Aug 11, 4:45 PM EDT | Special Weather Statement | FFC | Montgomery, Wheeler | 45 min |
| Aug 11, 5:20 PM EDT | Special Weather Statement | FFC | Telfair | 25 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.