Alert archive / Georgia / Special Weather Statements in 2012
Special Weather Statement, NWS Atlanta, GA
NWS Atlanta, GA issued this special weather statement at Sep 18, 2012, 7:18 AM EDT for Marion County, Schley County, Webster County, Georgia. It was in force for 42 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 18, 2012, 7:18 AM EDT (11:18 UTC)
- Expired
- Sep 18, 2012, 8:00 AM EDT
- In force
- 42 min
- Issued by
- NWS Atlanta, GA
Counties Marion County, GA, Schley County, GA, Webster County, GA
The nearest sounding before it
Peachtre/Fal Fld, GA (KFFC), launched 00:00Z, 11.3 hours before the alert went out and 144 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
- 405 J/kg
- Mixed-layer CIN
- -25 J/kg
- Mixed-layer LCL
- 706 m above ground
- 0-6 km bulk shear
- 39 kt
- 0-1 km storm-relative helicity
- 220 m²/s²
- 0-3 km storm-relative helicity
- 203 m²/s²
- Significant tornado parameter
- 0.3
- Supercell composite
- 3.2
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 18, 3:42 AM EDT, 3 hours 36 minutes earlier.
Area forecast discussion, Sep 18, 3:42 AM EDT, 3 hours 36 minutes before
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</html>Hazardous weather outlook, Sep 18, 5:10 AM EDT, 2 hours 8 minutes before
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</html>In the hours before
Special weather statement, Sep 18, 6:25 AM EDT, 53 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE PEACHTREE CITY GA
625 AM EDT TUE SEP 18 2012
GAZ011-019-181130-
625 AM EDT TUE SEP 18 2012
...SIGNIFICANT WEATHER ADVISORY FOR 40 MPH WINDS IN CHATTOOGA AND
FLOYD COUNTIES UNTIL 730 AM EDT...
AT 614 AM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
STRONG THUNDERSTORM 25 MILES SOUTHWEST OF CHATTOOGAVILLE...MOVING
NORTHEAST AT 35 MPH.
THE LEADING EDGE OF THIS LINE OF STORMS HAS EXHIBITED AREAS OF
LOCALIZED...WEAK ROTATION...BUT NOTHING STRONG ENOUGH TO INDICATE THE
PRESENCE OF A TORNADO AT 614 AM EDT. WIND GUSTS TO 40 MPH ARE ALSO
POSSIBLE AS THE LINE MOVES ACROSS CHATTOOGA AND FLOYD COUNTIES
THROUGH 730 AM EDT.
SOME LOCATIONS IN THE PATH OF THESE STORMS INCLUDE COOSA...
CHATTOOGAVILLE...LYERLY...MENLO...HOLLAND...BERRYTON...JAMES H. FLOYD
STATE PARK...SUMMERVILLE...ARMUCHEE...TIDINGS AND TRION.
EVERYONE IN THIS AREA IS URGED TO REMAIN INDOORS AND BE ALERT TO THE
POSSIBILITY OF LOCALIZED WIND DAMAGE.
&&
LAT...LON 3459 8538 3453 8513 3432 8512 3416 8544
3417 8545 3447 8551
TIME...MOT...LOC 1024Z 230DEG 30KT 3415 8570Special weather statement, Sep 18, 7:18 AM EDT, 0 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE PEACHTREE CITY GA
718 AM EDT TUE SEP 18 2012
GAZ090>092-102>104-181200-
718 AM EDT TUE SEP 18 2012
...SIGNIFICANT WEATHER ADVISORY FOR AN ENHANCED RISK OF BRIEF
TORNADOES AND 40 MPH WINDS IN WEBSTER...SUMTER...STEWART...SCHLEY...
MARION AND CHATTAHOOCHEE COUNTIES UNTIL 800 AM EDT...
AT 658 AM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
STRONG THUNDERSTORM 6 MILES WEST OF TROUTMAN...MOVING NORTHEAST AT 40
MPH.
THE LEADING EDGE OF THIS AREA OF STORMS HAS EXHIBITED AREAS OF
LOCALIZED...WEAK ROTATION...BUT NOTHING STRONG ENOUGH TO INDICATE THE
PRESENCE OF A TORNADO AT 658 AM EDT. STILL...THE ENVIRONMENT ALONG
THIS LINE SUGGESTS AN ENHANCED RISK OF A BRIEF...GENERALLY WEAK...
TORNADO FORMING. WIND GUSTS TO 40 MPH ARE ALSO POSSIBLE AS THE LINE
MOVES ACROSS WEBSTER...SUMTER...STEWART...SCHLEY...MARION AND
CHATTAHOOCHEE COUNTIES THROUGH 800 AM EDT.
SOME LOCATIONS IN THE PATH OF THESE STORMS INCLUDE KIMBROUGH...
WESTON...WESTVILLE...TROUTMAN...BROOKLYN...RICHLAND...LUMPKIN...
PRESTON...SEMINOLE...CHURCH HILL...DRANEVILLE...FRIENDSHIP...
CONCORD...BUENA VISTA AND PUTNAM.
EVERYONE IN THIS AREA IS URGED TO REMAIN INDOORS AND BE ALERT TO THE
POSSIBILITY OF LOCALIZED WIND DAMAGE AND WEAK TORNADOES THAT FORM AND
DISSIPATE RAPIDLY. ONCE THIS LINE OF THUNDERSTORMS MOVES EAST OF YOUR
AREA...THE RISK OF TORNADO FORMATION WILL DECREASE SIGNIFICANTLY.
&&
LAT...LON 3194 8496 3240 8449 3234 8429 3226 8423
3191 8467 3192 8468 3191 8482
TIME...MOT...LOC 1118Z 228DEG 34KT 3205 8464The office that day
Everything else NWS Atlanta, GA issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Sep 18, 12:21 AM EDT | Special Weather Statement | FFC | Johnson, Laurens, Wilkinson | 24 min |
| Sep 18, 1:06 AM EDT | Special Weather Statement | FFC | Dade | 54 min |
| Sep 18, 3:27 AM EDT | River Flood Warning | FFC | Dade | 15 hr |
| Sep 18, 6:25 AM EDT | Special Weather Statement | FFC | Chattooga | 65 min |
| Sep 18, 7:52 AM EDT | Special Weather Statement | FFC | Crawford, Macon, Peach, Schley | 38 min |
| Sep 18, 8:22 AM EDT | Special Weather Statement | FFC | Baldwin, Jones | 23 min |
| Sep 18, 11:33 AM EDT | Special Weather Statement | FFC | Coweta, Troup | 27 min |
| Sep 18, 11:57 AM EDT | Special Weather Statement | FFC | Clayton, Coweta, Fayette | 33 min |
| Sep 18, 1:29 PM EDT | Special Weather Statement | FFC | Butts, Spalding | 46 min |
| Sep 18, 2:16 PM EDT | Special Weather Statement | FFC | Monroe, Upson | 29 min |
| Sep 18, 2:46 PM EDT | Special Weather Statement | FFC | Bibb, Jones, Monroe | 29 min |
| Sep 18, 3:42 PM EDT | Special Weather Statement | FFC | Hancock, Putnam | 48 min |
Nearby
Special Weather Statements in Georgia, 2012Every special weather statement in 2012
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.