Alert archive / Georgia / Special Weather Statements in 2012

Special Weather Statement, NWS Atlanta, GA

September 2, 2012Chattooga County, Georgia

NWS Atlanta, GA issued this special weather statement at Sep 2, 2012, 8:30 PM EDT for Chattooga County, Georgia. It was in force for 30 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 2, 2012, 8:30 PM EDT (00:30 UTC)
Expired: Sep 2, 2012, 9:00 PM EDT
In force: 30 min
Issued by: NWS Atlanta, GA

County Chattooga County, GA

The radar

The Northeast Alabama radar (KHTX), 84 km from the middle of the area, began a volume at 00:32 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 00:00Z, 0.5 hours before the alert went out and 146 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-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

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: 1453 J/kg
Mixed-layer CIN: -16 J/kg
Mixed-layer LCL: 1105 m above ground
0-6 km bulk shear: 14 kt
0-1 km storm-relative helicity: 50 m²/s²
0-3 km storm-relative helicity: 76 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 Sep 2, 8:10 PM EDT, 20 minutes earlier.

Area forecast discussion, Sep 2, 8:10 PM EDT, 20 minutes before

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Hazardous weather outlook, Sep 2, 7:05 PM EDT, 1 hour 25 minutes before

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE PEACHTREE CITY GA
705 PM EDT SUN SEP 2 2012

GAZ001>009-011>016-019>025-027-030>039-041>062-066>076-078>086-
089>098-102>113-031100-
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-
705 PM EDT SUN SEP 2 2012

THIS HAZARDOUS WEATHER OUTLOOK IS FOR NORTH AND CENTRAL GEORGIA.

.DAY ONE...TONIGHT...
ISOLATED SEVERE STORMS POSSIBLE OVER NORTHWEST GEORGIA TONIGHT.

.SYNOPSIS...
TROPICAL MOISTURE WILL PERSIST OVER NORTH AND CENTRAL GEORGIA
THROUGH TONIGHT. THE REMNANTS OF TROPICAL STORM ISAAC WILL MOVE INTO
THE OHIO AND TENNESSEE VALLEYS TONIGHT WITH A TRAILING COLD FRONT.

.PRIMARY HAZARDS...
NORTHWEST GEORGIA WILL HAVE THE GREATEST CHANCE FOR SEVERE STORMS
WITH STRONG WINDS AND ISOLATED TORNADOES THROUGH MIDNIGHT.
ELSEWHERE...THE PRIMARY HAZARDS FROM THUNDERSTORMS WILL BE GUSTY
WINDS...PERIODS OF HEAVY RAIN AND OCCASIONAL LIGHTNING.

.DISCUSSION...
DEEP TROPICAL MOISTURE REMAINS OVER GEORGIA. DYNAMICS ASSOCIATED
WITH THE REMNANTS OF ISAAC WILL MOVE INTO THE OHIO AND TENNESSEE
VALLEYS TONIGHT. THE MOISTURE AND MODERATE INSTABILITY WILL COMBINE
TO PRODUCE SCATTERED THUNDERSTORMS TONIGHT...MAINLY OVER NORTH
GEORGIA. WITH CAPES RANGING FROM 1500 TO 2500 THIS EVENING AND
MODERATE WIND SHEAR...A FEW THUNDERSTORMS COULD BECOME SEVERE...
MAINLY NORTHWEST. ENOUGH LOW LEVEL SHEAR WILL BE PRESENT THAT IF A
THUNDERSTORM BECOMES STRONG ENOUGH...A BRIEF TORNADO WILL BE
POSSIBLE.

.DAYS TWO THROUGH SEVEN...MONDAY THROUGH SATURDAY...
THE TROPICAL AIR MASS WILL CONTINUE THROUGH MOST OF THE PERIOD
WITH SCATTERED SHOWERS AND THUNDERSTORMS POSSIBLE EACH DAY.

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

16

In the hours before

Special weather statement, Sep 2, 5:16 PM EDT, 3 hours 14 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE PEACHTREE CITY GA
516 PM EDT SUN SEP 2 2012

GAZ074-076-022200-
516 PM EDT SUN SEP 2 2012

...SIGNIFICANT WEATHER ADVISORY FOR 40 MPH WINDS IN WASHINGTON AND
JEFFERSON COUNTIES UNTIL 600 PM EDT...

AT 507 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
STRONG THUNDERSTORM OVER BARTOW...MOVING NORTHEAST AT 15 MPH.

THESE STORMS HAVE THE POTENTIAL TO PRODUCE FREQUENT CLOUD TO GROUND
LIGHTNING AND WIND GUSTS TO 40 MPH AS THEY MOVE ACROSS WASHINGTON
AND JEFFERSON COUNTIES THROUGH 600 PM EDT. SOME LOCATIONS IN THE
PATH OF THESE STORMS INCLUDE BARTOW...WADLEY...MOXLEY AND
LOUISVILLE. HEAVY DOWNPOURS WILL CAUSE PONDING OF WATER ON ROADWAYS.

&&

LAT...LON 3288 8229 3282 8256 3292 8263 3309 8235
      3294 8226
TIME...MOT...LOC 2116Z 244DEG 11KT 3290 8251

Special weather statement, Sep 2, 6:35 PM EDT, 1 hour 55 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE PEACHTREE CITY GA
635 PM EDT SUN SEP 2 2012

GAZ001-022330-
635 PM EDT SUN SEP 2 2012

...SIGNIFICANT WEATHER ADVISORY FOR 45 MPH WINDS IN DADE COUNTY UNTIL
730 PM EDT...

AT 632 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED
STRONG THUNDERSTORMS FROM 15 MILES NORTHWEST OF COLE CITY TO 23 MILES
WEST OF STEPHENSVILLE...MOVING EAST AT 30 MPH.

WIND GUSTS OF 45 MPH ARE LIKELY AS THIS STORM MOVES ACROSS DADE
COUNTY THROUGH 730 PM EDT. SOME LOCATIONS IN THE PATH OF THE STORM
INCLUDE COLE CITY...HOOKER...MORGANVILLE...STEPHENSVILLE...
WILDWOOD...NEW ENGLAND...TRENTON...RISING FAWN AND CLOUDLAND CANYON
STATE PARK.

A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT. CONTINUE TO MONITOR
NOAA WEATHER RADIO...WEATHER.GOV OR OTHER MEDIA OUTLETS FOR FURTHER
STATEMENTS OR POSSIBLE WARNINGS ON THESE STORMS.

&&

LAT...LON 3499 8536 3498 8536 3484 8545 3477 8545
      3473 8546 3469 8549 3466 8550 3463 8554
      3498 8561 3499 8560
TIME...MOT...LOC 2236Z 275DEG 26KT 3512 8572 3498 8573
          3485 8592

Special weather statement, Sep 2, 7:27 PM EDT, 1 hour 3 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE PEACHTREE CITY GA
727 PM EDT SUN SEP 2 2012

GAZ001>003-030000-
727 PM EDT SUN SEP 2 2012

...SIGNIFICANT WEATHER ADVISORY FOR 45 MPH WINDS IN WALKER...CATOOSA
AND DADE COUNTIES UNTIL 800 PM EDT...

AT 723 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED
STRONG THUNDERSTORMS FROM 8 MILES NORTH OF LAKEVIEW TO
STEPHENSVILLE...MOVING EAST AT 35 MPH.

WIND GUSTS OF 45 MPH ARE LIKELY AS THESE STORMS MOVE ACROSS WALKER...
CATOOSA AND DADE COUNTIES THROUGH 800 PM EDT. SOME LOCATIONS IN THE
PATH OF THESE STORMS INCLUDE COLE CITY...HOOKER...MORGANVILLE...
STEPHENSVILLE...WILDWOOD...RISING FAWN...NEW ENGLAND...TRENTON...
LOOKOUT MOUNTAIN...CLOUDLAND CANYON STATE PARK...COOPER HEIGHTS...
LAKEVIEW...CHATTANOOGA VALLEY...FORT OGLETHORPE AND FAIRVIEW.

A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT. CONTINUE TO MONITOR
NOAA WEATHER RADIO...WEATHER.GOV OR OTHER MEDIA OUTLETS FOR FURTHER
STATEMENTS OR POSSIBLE WARNINGS ON THESE STORMS.

&&

LAT...LON 3499 8498 3491 8501 3491 8502 3488 8501
      3487 8506 3484 8507 3471 8556 3494 8561
      3499 8560
TIME...MOT...LOC 2327Z 262DEG 31KT 3510 8519 3499 8538
          3486 8553

Special weather statement, Sep 2, 7:55 PM EDT, 35 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE PEACHTREE CITY GA
755 PM EDT SUN SEP 2 2012

GAZ001-002-011-030030-
755 PM EDT SUN SEP 2 2012

...SIGNIFICANT WEATHER ADVISORY FOR 40 MPH WINDS IN WALKER...
CHATTOOGA AND DADE COUNTIES UNTIL 830 PM EDT...

AT 747 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED
STRONG THUNDERSTORMS FROM 14 MILES WEST OF COLE CITY TO 15 MILES WEST
OF CLOUDLAND...MOVING EAST AT 45 MPH.

WIND GUSTS OF 40 MPH ARE LIKELY AS THESE STORMS MOVE ACROSS WALKER...
CHATTOOGA AND DADE COUNTIES THROUGH 830 PM EDT. SOME LOCATIONS IN THE
PATH OF THESE STORMS INCLUDE RISING FAWN...CEDAR GROVE...COLE CITY...
STEPHENSVILLE...CLOUDLAND CANYON STATE PARK...TRENTON...CLOUDLAND...
COOPER HEIGHTS...NEW ENGLAND...LAFAYETTE...LINWOOD...HOOKER...
MORGANVILLE...WILDWOOD AND CENTER POST.

A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT. CONTINUE TO MONITOR
NOAA WEATHER RADIO...WEATHER.GOV OR OTHER MEDIA OUTLETS FOR FURTHER
STATEMENTS OR POSSIBLE WARNINGS ON THESE STORMS.

&&

LAT...LON 3499 8533 3489 8526 3486 8526 3485 8524
      3475 8518 3447 8538 3450 8552 3495 8561
      3498 8561 3499 8560
TIME...MOT...LOC 2355Z 259DEG 38KT 3495 8571 3471 8553
          3455 8565

Local storm report, Sep 2, 8:18 PM EDT, 12 minutes before

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Special weather statement, Sep 2, 8:30 PM EDT, 0 minutes before

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The office that day

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

Issued	Product	Office	Counties	Lasted
Sep 3, 2:55 PM EDT	Special Weather Statement	FFC	Dooly	50 min
Sep 3, 3:07 PM EDT	Special Weather Statement	FFC	Clarke, Greene, Madison, Oglethorpe	38 min
Sep 3, 3:46 PM EDT	Special Weather Statement	FFC	Madison	29 min
Sep 3, 4:00 PM EDT	Special Weather Statement	FFC	Baldwin, Twiggs	30 min
Sep 3, 4:02 PM EDT	Special Weather Statement	FFC	Chattahoochee, Muscogee	43 min
Sep 3, 4:08 PM EDT	Special Weather Statement	FFC	Crisp	52 min
Sep 3, 4:29 PM EDT	Special Weather Statement	FFC	Wilkinson	31 min
Sep 3, 4:41 PM EDT	Special Weather Statement	FFC	Chattahoochee, Marion, Muscogee, Stewart	34 min
Sep 3, 4:51 PM EDT	Special Weather Statement	FFC	Bibb, Jones	39 min
Sep 3, 4:58 PM EDT	Special Weather Statement	FFC	Crisp	32 min
Sep 3, 5:10 PM EDT	Special Weather Statement	FFC	Stewart, Webster	35 min
Sep 3, 5:20 PM EDT	Special Weather Statement	FFC	Marion	25 min
Sep 3, 5:27 PM EDT	Special Weather Statement	FFC	Baldwin, Jones	33 min
Sep 3, 5:41 PM EDT	Special Weather Statement	FFC	Marion, Schley, Taylor, Webster	34 min
Sep 3, 5:58 PM EDT	Special Weather Statement	FFC	Baldwin, Hancock	32 min
Sep 3, 6:11 PM EDT	Special Weather Statement	FFC	Crawford, Macon, Peach, Schley, Sumter, Taylor	34 min

Nearby

Special Weather Statements in Georgia, 2012 Every 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; radar from the NEXRAD Level II archive.