Alert archive / Georgia / Special Weather Statements in 2012

Special Weather Statement, NWS Atlanta, GA

January 11, 2012Murray County, Georgia

NWS Atlanta, GA issued this special weather statement at Jan 11, 2012, 12:47 PM EST for Murray County, Georgia. It was in force for 28 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: Jan 11, 2012, 12:47 PM EST (17:47 UTC)
Expired: Jan 11, 2012, 1:15 PM EST
In force: 28 min
Issued by: NWS Atlanta, GA

County Murray County, GA

The nearest sounding before it

Peachtre/Fal Fld, GA (KFFC), launched 12:00Z, 5.8 hours before the alert went out and 168 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: 128 J/kg
Mixed-layer CIN: -82 J/kg
Mixed-layer LCL: 501 m above ground
0-6 km bulk shear: 50 kt
0-1 km storm-relative helicity: 376 m²/s²
0-3 km storm-relative helicity: 332 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.5

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 Jan 11, 10:13 AM EST, 2 hours 34 minutes earlier.

Area forecast discussion, Jan 11, 10:13 AM EST, 2 hours 34 minutes before

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE PEACHTREE CITY GA
1013 AM EST WED JAN 11 2012

.SHORT TERM /TONIGHT THROUGH FRIDAY/...
SHOWERS AND ISOLATED THUNDERSTORMS EXITING THE CWA AS THE LOW
PRESSURE SYSTEM OVER WEST CENTRAL ALABAMA MOVES INTO THE OHIO
VALLEY TODAY. EXPECTING NEXT AREA OF SHOWERS TO MOVE INTO NW GA
BETWEEN 16-17Z. COLD FRONT IS EXPECTED TO PUSH THROUGH THE STATE
AND INTO THE CAROLINAS BY 21Z TODAY. HAVE MADE ADJUSTMENTS TO THE
MORNING AND AFTERNOON POPS TO ACCOUNT FOR CURRENT RADAR TRENDS AND
LATEST MODEL SOLUTIONS. HAVE ALSO EDITED SKY AND WX GRIDS TO
ACCOUNT FOR THE CHANGE IN POPS. HAVE ALSO MADE SOME CHANGES TO THE
HOURLY WEATHER GRIDS AND DEW POINTS BASED ON CURRENT TRENDS.

31

&&

.SHORT TERM /TODAY THROUGH THURSDAY NIGHT/...
/ISSUED 403 AM EST WED JAN 11 2012/
LATEST SURFACE ANALYSIS SHOWS THE MAIN SURFACE LOW JUST EAST OF THE
MEMPHIS AREA. THE COLD FRONT IS SWEEPING THROUGH ALABAMA AND SHOULD
BE NEAR THE AL/GA BORDER BY 12Z. THERE ARE SOME ISOLATED TO
SCATTERED THUNDERSTORMS WITH THIS SYSTEM BUT NO SEVERE STORMS AS OF
YET. A FEW REPORTS OF PEA TO DIME SIZE HAIL ACROSS AL BUT THAT HAS
BEEN IT SO FAR. THIS IS A FAST MOVING COLD FRONT AND IT SHOULD BE
EAST OF OUR CWA BY 18Z. AS IT MOVES THROUGH IT CONTINUES TO LOOK
LIKE THE BIGGEST THREAT WILL BE DAMAGING WINDS...ESPECIALLY WITH
ANY BOWING SECTIONS OF THE LINE. THE MODELS STILL SHOW THE LOW LEVEL
JET MOVING ACROSS OUR AREA WITH THE FRONT BUT THEY ARE SHOWING THE
CAPE OUT AHEAD OF THE FRONT. MUCAPES EXPECTED AROUND 300 J/KG WITH
0-6KM BULK SHEAR PEAKING AROUND 60KT BETWEEN 12-18Z. LIFTED
INDICES ARE STRONGEST RIGHT AT 12Z ALONG THE GA/AL BORDER WITH
READINGS IN THE 0 TO -2 RANGE. COULD NOT RULE OUT AN ISOLATED
TORNADO OR TWO WITH THIS ENVIRONMENT. ONCE THIS FRONT MOVES EAST
OF THE AREA DRIER AIR BEGINS TO MOVE INTO THE REGION. THERE IS A
SECOND...MUCH DRIER COLD FRONT THAT SWEEPS THROUGH THE STATE THU
AND THIS IS THE FRONT THAT WILL USHER IN THE COLDER AIRMASS.
TEMPS ARE EXPECTED TO DROP TO NEAR OR EVEN SLIGHTLY BELOW SEASONAL
NORMS THU/FRI.

.LONG TERM /FRIDAY THROUGH TUESDAY/...
/ISSUED 403 AM EST WED JAN 11 2012/
MODELS CONTINUE TO SHOW A DRY AND CHILLY TREND INTO THE BEGINNING OF
NEXT WEEK. TEMPS WILL BE ON AVERAGE ALMOST 10-15 DEG COOLER THAN WE
HAVE SEEN OVER THE PAST FEW DAYS. LOOKS LIKE THESE DRY CONDITIONS
WILL CONTINUE THROUGH AT LEAST MON AS NEXT FRONTAL SYSTEM LOOKS TO
MOVE INTO NW GA TUESDAY. HAVE INCREASED POPS FOR DAY 7 INTO THE
SLIGHT/CHANCE RANGE.

01

&&

.AVIATION...
12Z UPDATE...
/ISSUED 655 AM EST WED JAN 11 2012/
EXPECT IFR CIGS TO DOMINATE THOUGH MID MORNING....BEFORE IMPROVING
INTO THE MVFR-LOW VFR RANGE LATE MORNING/EARLY AFTERNOON.
HOWEVER...EXPECT CIGS TO LOWER AGAIN BACK INTO THE IFR RANGE
AFTER SUNSET. VSBYS GENERALLY IN THE MVFR RANGE THIS MORNING IN
SHOWERS/ISOLATED THUNDERSTORMS...BUT IMPROVING TO 6 PLUS BY LATE
MORNING AS PRECIP TAPERS OFF. SOUTHEAST WINDS 10 TO 15 KTS
EARLY...BECOMING SOUTHWEST TO WEST BY LATE MORNING AS FRONT
PUSHES THROUGH. WIND GUSTS UP TO 23 KTS POSSIBLE THROUGH THE
AFTERNOON.

//ATL CONFIDENCE...06Z UPDATE...
LOW TO MEDIUM CONFIDENCE ALL ELEMENTS.

49

&&

.PRELIMINARY POINT TEMPS/POPS...
ATHENS          41  59  27  45 /  10  10  10   5
ATLANTA         43  54  26  43 /  10  10  10   5
BLAIRSVILLE     42  50  24  37 /  20  20  10  10
CARTERSVILLE    43  53  25  42 /  10  10  10   5
COLUMBUS        44  60  29  50 /   0   5  10   5
GAINESVILLE     42  54  26  41 /  20  10  10   5
MACON           42  63  29  50 /   0   5  10   5
ROME            44  52  24  43 /  20  20  10   5
PEACHTREE CITY  40  57  24  46 /  10   5  10   5
VIDALIA         46  68  34  52 /   0   5  10   5

&&

.FFC WATCHES/WARNINGS/ADVISORIES...
NONE.
&&

31/49/01

Hazardous weather outlook, Jan 11, 5:09 AM EST, 7 hours 38 minutes before

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE PEACHTREE CITY GA
509 AM EST WED JAN 11 2012

GAZ001>009-011>016-019>025-027-030>039-041>062-066>076-078>086-
089>098-102>113-121015-
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-
509 AM EST WED JAN 11 2012

THIS HAZARDOUS WEATHER OUTLOOK IS FOR NORTH AND CENTRAL GEORGIA.

.DAY ONE...TODAY AND TONIGHT...
ISOLATED THUNDERSTORMS EXPECTED THIS MORNING ACROSS NORTH AND
CENTRAL GEORGIA.

.SYNOPSIS...
A FAST MOVING COLD FRONT WILL SWEEP THROUGH THE STATE THIS
MORNING. THIS FRONT IS EXPECTED TO BE EAST OF THE AREA BY 1PM.

.PRIMARY HAZARDS...
THE PRIMARY HAZARDS FROM THUNDERSTORMS THIS MORNING WILL BE GUSTY
WINDS...LIGHTNING...AND SMALL HAIL.

.DISCUSSION...
SHOWERS AND ISOLATED THUNDERSTORMS MOVING INTO THE AREA FROM THE
WEST THIS MORNING. CAPES EXPECTED AROUND 300 WITH LIFTED INDICES
EXPECTED IN THE 0 TO -2 RANGE BY 10AM. THIS COMBINED WITH WIND SHEAR
WILL LEAD TO ISOLATED THUNDERSTORMS THAT COULD PRODUCE GUSTY
WINDS...LIGHTNING AND SMALL HAIL.

.DAYS TWO THROUGH SEVEN...THURSDAY THROUGH TUESDAY...
NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME.

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

In the hours before

Special weather statement, Jan 11, 11:13 AM EST, 1 hour 34 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE PEACHTREE CITY GA
1113 AM EST WED JAN 11 2012

GAZ003-004-111645-
1113 AM EST WED JAN 11 2012

...SIGNIFICANT WEATHER ADVISORY FOR PEA SIZED HAIL IN WHITFIELD AND
CATOOSA COUNTIES UNTIL 1145 AM EST...

AT 1112 AM EST...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
STRONG THUNDERSTORM OVER TUNNEL HILL...AND MOVING NORTH AT 25 MPH.

WIND GUSTS OF 35 MPH AND SMALL HAIL ARE POSSIBLE AS THIS STORM MOVES
ACROSS PARTS OF WHITFIELD AND CATOOSA COUNTIES THROUGH 1145 AM EST.
SOME LOCATIONS IN THE PATH OF THE STORM INCLUDE MILL CREEK...ROCKY
FACE...TUNNEL HILL...WOOD STATION...RINGGOLD...VARNELL...SALEM AND
COHUTTA.

&&

LAT...LON 3498 8482 3472 8502 3478 8517 3499 8513
      3499 8483
TIME...MOT...LOC 1613Z 199DEG 21KT 3483 8509

Special weather statement, Jan 11, 11:31 AM EST, 1 hour 16 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE PEACHTREE CITY GA
1131 AM EST WED JAN 11 2012

GAZ002-011-019-111700-
1131 AM EST WED JAN 11 2012

...SIGNIFICANT WEATHER ADVISORY FOR PEA SIZED HAIL IN WALKER...
CHATTOOGA AND FLOYD COUNTIES UNTIL NOON EST...

AT 1130 AM EST...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
STRONG THUNDERSTORM OVER JAMES H. FLOYD STATE PARK...AND MOVING
NORTHEAST AT 45 MPH.

WIND GUSTS OF 35 MPH AND SMALL HAIL ARE LIKELY AS THIS STORM MOVES
ACROSS PARTS OF WALKER...CHATTOOGA AND FLOYD COUNTIES THROUGH NOON
EST.

&&

LAT...LON 3476 8534 3471 8513 3463 8505 3459 8506
      3459 8507 3455 8506 3454 8509 3449 8509
      3427 8523 3440 8544
TIME...MOT...LOC 1631Z 206DEG 41KT 3445 8529

Special weather statement, Jan 11, 11:55 AM EST, 52 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE PEACHTREE CITY GA
1155 AM EST WED JAN 11 2012

GAZ002>004-111730-
1155 AM EST WED JAN 11 2012

...SIGNIFICANT WEATHER ADVISORY FOR PEA SIZED HAIL IN WHITFIELD...
WALKER AND CATOOSA COUNTIES UNTIL 1230 PM EST...

AT 1154 AM EST...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
STRONG THUNDERSTORM OVER DALTON...AND MOVING NORTH AT 30 MPH.

WIND GUSTS OF 35 MPH AND SMALL HAIL ARE LIKELY AS THIS STORM MOVES
ACROSS PARTS OF WHITFIELD...WALKER AND CATOOSA COUNTIES THROUGH 1230
PM EST. SOME LOCATIONS IN THE PATH OF THE STORM INCLUDE TILTON...
MILL CREEK...ROCKY FACE...DALTON...TUNNEL HILL... DAWNVILLE...
VARNELL...SALEM...BEAVERDALE AND COHUTTA.

&&

LAT...LON 3493 8484 3491 8483 3471 8491 3471 8494
      3469 8492 3468 8492 3468 8494 3467 8493
      3463 8494 3472 8512 3499 8508 3499 8482
TIME...MOT...LOC 1655Z 196DEG 28KT 3478 8498

Special weather statement, Jan 11, 12:14 PM EST, 33 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE PEACHTREE CITY GA
1214 PM EST WED JAN 11 2012

GAZ007-013-111745-
1214 PM EST WED JAN 11 2012

...SIGNIFICANT WEATHER ADVISORY FOR PEA SIZED HAIL IN PICKENS AND
GILMER COUNTIES UNTIL 1245 PM EST...

AT 1213 PM EST...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
STRONG THUNDERSTORM OVER TALONA...AND MOVING NORTH AT 25 MPH.

WIND GUSTS OF 35 MPH AND SMALL HAIL ARE LIKELY AS THIS STORM MOVES
ACROSS PARTS OF PICKENS AND GILMER COUNTIES THROUGH 1245 PM EST.
SOME LOCATIONS IN THE PATH OF THE STORM INCLUDE TALKING
ROCK...BLAINE...ROUNDTOP...TALONA...CARTECAY...EAST
ELLIJAY...ELLIJAY...MOUNTAINTOWN AND CHERRY LOG.

&&

LAT...LON 3484 8439 3484 8438 3482 8433 3480 8431
      3448 8444 3451 8462 3485 8456 3485 8442
TIME...MOT...LOC 1714Z 194DEG 22KT 3461 8450

Local storm report, Jan 11, 12:43 PM EST, 4 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE PEACHTREE CITY GA
1243 PM EST WED JAN 11 2012

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

1150 AM     HAIL             DALTON                  34.77N 84.97W
01/11/2012  E0.75 INCH       WHITFIELD          GA   PUBLIC

            PENNY SIZE HAIL REPORTED ON CORPORATE DRIVE

&&

VMURRELL

Special weather statement, Jan 11, 12:47 PM EST, 0 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE PEACHTREE CITY GA
1247 PM EST WED JAN 11 2012

GAZ005-111815-
1247 PM EST WED JAN 11 2012

...SIGNIFICANT WEATHER ADVISORY FOR PEA SIZED HAIL IN MURRAY COUNTY
UNTIL 115 PM EST...

AT 1243 PM EST...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
STRONG THUNDERSTORM OVER ETON...AND MOVING NORTH AT 15 MPH.

WIND GUSTS OF 35 MPH AND SMALL HAIL ARE LIKELY AS THIS STORM MOVES
ACROSS MURRAY COUNTY THROUGH 115 PM EST. SOME LOCATIONS IN THE PATH
OF THE STORM INCLUDE FORT MOUNTAIN STATE PARK...CHATSWORTH...
ETON...CRANDALL...SUMAC...CISCO...GREGORY AND TENNGA.

&&

LAT...LON 3499 8463 3475 8470 3474 8486 3479 8486
      3480 8484 3481 8486 3483 8485 3485 8486
      3487 8482 3493 8484 3499 8481
TIME...MOT...LOC 1747Z 194DEG 9KT 3486 8478

The office that day

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

Issued	Product	Office	Counties	Lasted
Jan 11, 4:38 AM EST	Special Weather Statement	FFC	Carroll	22 min
Jan 11, 5:11 AM EST	Special Weather Statement	FFC	Coweta	34 min
Jan 11, 5:27 AM EST	Special Weather Statement	FFC	Fayette	33 min
Jan 11, 5:45 AM EST	Special Weather Statement	FFC	Fulton	30 min
Jan 11, 6:53 AM EST	Special Weather Statement	FFC	Pike, Spalding	37 min
Jan 11, 7:11 AM EST	Special Weather Statement	FFC	Henry, Rockdale	34 min
Jan 11, 9:45 AM EST	Special Weather Statement	FFC	Jefferson, Johnson	45 min
Jan 11, 10:28 AM EST	Special Weather Statement	FFC	Catoosa	32 min
Jan 11, 11:00 AM EST	Special Weather Statement	FFC	Floyd	30 min
Jan 11, 11:13 AM EST	Special Weather Statement	FFC	Catoosa, Whitfield	32 min
Jan 11, 11:31 AM EST	Special Weather Statement	FFC	Chattooga, Walker	29 min
Jan 11, 11:55 AM EST	Special Weather Statement	FFC	Whitfield	35 min
Jan 11, 12:14 PM EST	Special Weather Statement	FFC	Gilmer	31 min
Jan 11, 1:16 PM EST	Special Weather Statement	FFC	Fannin	29 min
Jan 11, 1:31 PM EST	Special Weather Statement	FFC	Lumpkin, Towns, Union	29 min
Jan 11, 2:05 PM EST	Wind Advisory	FFC	Baldwin, Banks, Barrow, Bartow, Bibb, Bleckley and 90 more	34 hr
Jan 11, 2:21 PM EST	Winter Weather Advisory	FFC	Catoosa, Dade, Fannin, Gilmer, Lumpkin, Murray and 5 more	37 hr

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.