Alert archive / Georgia / Special Weather Statements in 2015

Special Weather Statement, NWS Atlanta, GA

July 21, 2015Bleckley County, Houston County, Georgia

NWS Atlanta, GA issued this special weather statement at Jul 21, 2015, 12:50 PM EDT for Bleckley County, Houston County, Georgia. It was in force for 40 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: Jul 21, 2015, 12:50 PM EDT (16:50 UTC)
Expired: Jul 21, 2015, 1:30 PM EDT
In force: 40 min
Issued by: NWS Atlanta, GA

Counties Bleckley County, GA, Houston County, GA

The radar

The Robins AFB radar (KJGX), 32 km from the middle of the area, began a volume at 16:50 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, 4.8 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.

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: 1213 J/kg
Mixed-layer CIN: -59 J/kg
Mixed-layer LCL: 1086 m above ground
0-6 km bulk shear: 16 kt
0-1 km storm-relative helicity: 37 m²/s²
0-3 km storm-relative helicity: 3 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 Jul 21, 7:35 AM EDT, 5 hours 15 minutes earlier.

Area forecast discussion, Jul 21, 7:35 AM EDT, 5 hours 15 minutes before

AREA FORECAST DISCUSSION...UPDATED FOR AVIATION
NATIONAL WEATHER SERVICE PEACHTREE CITY GA
735 AM EDT TUE JUL 21 2015

.SHORT TERM /TODAY THROUGH WEDNESDAY/...
THE UPPER RIDGE OVER THE TX/LA REGION WILL GRADUALLY SLIDE WESTWARD
DURING THE SHORT TERM AS A TROUGH DEEPENS INTO THE GREAT LAKES AREA.
THIS WILL PUT THE FORECAST AREA INTO A MORE NORTHWEST FLOW ALOFT
ESPECIALLY BY WEDNESDAY. EXPECTING DIURNAL THUNDERSTORMS AGAIN THIS
AFTERNOON BUT WITH LITTLE TO FOCUS THEM. THE SURFACE BOUNDARY
CURRENTLY IN THE OH VALLEY REGION SHOULD DRIFT INTO NORTH GA ON
WEDNESDAY AS HEIGHTS FALL ALOFT. NOT SURE AT THIS TIME HOW FAR INTO
THE FORECAST AREA THIS BOUNDARY WILL GET. MODELS INDICATE THERE MAY
BE A SHORT WAVE ON THIS BOUNDARY THAT COULD AFFECT US
WEDNESDAY...AND SPC HAS INCLUDED A PORTION OF THE AREA IN A MARGINAL
RISK. FOR NOW...CHANCE POPS LOOK OKAY FOR TODAY AND AGAIN WEDNESDAY
AREA WIDE. SOME STORMS MAY LINGER INTO THE OVERNIGHT HOURS TONIGHT.

EXPECTING CONTINUED HOT WEATHER TODAY. HAVE ISSUED A HEAT ADVISORY
GENERALLY ALONG AND SOUTH OF A LINE FROM LA GRANGE TO MONTICELLO TO
WARRENTON. THERE MAY BE MORE CLOUDINESS AND MORE CONVECTION ON
WEDNESDAY...SO HAVE FORECAST THE MAX TEMPERATURES A FEW DEGREES
LOWER IN MOST AREAS. WILL LET NEXT SHIFTS TAKE A LOOK AT ANY
POSSIBILITY OF A HEAT ADVISORY FOR WEDNESDAY.

41

.LONG TERM /WEDNESDAY NIGHT THROUGH MONDAY/...
GFS AND THE EUROPEAN MODELS ARE FAIRLY CONSISTENT STARTING THE LONG
TERM WITH WNW UPPER LEVEL FLOW AND A NEARLY STATIONARY FRONT ACROSS
THE N TO CENTRAL GA AREA. THE FRONT SEEMS TO MEANDER ACROSS THE AREA
THROUGH THE LONG TERM AS THE UPPER FLOW BECOMES MORE NNW FRIDAY AND
THROUGH THE WEEKEND. THE UPPER FLOW COULD BE FAIRLY ACTIVE WITH SHORT
WAVE ACTIVITY UNTIL IT BECOMES MORE NORTHERLY BY THE WEEKEND.
THE GFS AND EUROPEAN START TO DIFFER BY SUNDAY WITH THE GFS NOSING IN
MORE OF AN UPPER RIDGE FOR N GA AND THE EUROPEAN MORE OF AN EASTERN
SEABOARD TROUGH AND THIS CONTINUES THROUGH MONDAY.
GENERALLY EXPECT MAINLY AFTERNOON AND EVENING SHOWERS AND
THUNDERSTORMS EACH DAY. THIS PATTERN WILL HELP LOWER DAYTIME
HIGHS AND ASSOCIATED HEAT INDEX VALUES TOWARD WEEKS END.

FORECAST TEMPERATURES ARE RUNNING NEAR TO A FEW DEGREES ABOVE
NORMAL DURING THE LONG TERM PERIOD.

BDL

&&

.AVIATION...
12Z UPDATE...
DIURNAL CUMULUS AND AFTERNOON AND EVENING THUNDERSTORMS EXPECTED
AGAIN TODAY. SHOULD BE VFR OUTSIDE OF STORMS. WINDS WILL REMAIN
ON THE WEST SIDE WITH SOME GUSTS TO AROUND 15KT THIS AFTERNOON.

//ATL CONFIDENCE...12Z UPDATE...
HIGH CONFIDENCE ALL ELEMENTS.

41

&&

.PRELIMINARY POINT TEMPS/POPS...
ATHENS          96  74  95  73 /  40  30  40  30
ATLANTA         93  75  92  74 /  40  30  40  40
BLAIRSVILLE     87  66  86  66 /  40  30  50  30
CARTERSVILLE    93  72  91  72 /  40  30  40  40
COLUMBUS        97  77  96  76 /  40  30  40  40
GAINESVILLE     92  74  92  73 /  40  30  40  30
MACON           99  75  97  74 /  40  30  40  40
ROME            96  73  93  72 /  40  30  40  40
PEACHTREE CITY  94  73  92  73 /  40  30  40  40
VIDALIA         98  77  97  76 /  40  30  50  40

&&

.FFC WATCHES/WARNINGS/ADVISORIES...
HEAT ADVISORY FROM 1 PM THIS AFTERNOON TO 7 PM EDT THIS EVENING
FOR THE FOLLOWING ZONES: BALDWIN...BIBB...BLECKLEY...
CHATTAHOOCHEE...CRAWFORD...CRISP...DODGE...DOOLY...EMANUEL...
GLASCOCK...HANCOCK...HARRIS...HOUSTON...JASPER...JEFFERSON...
JOHNSON...JONES...LAMAR...LAURENS...MACON...MARION...
MERIWETHER...MONROE...MONTGOMERY...MUSCOGEE...PEACH...PIKE...
PULASKI...PUTNAM...SCHLEY...STEWART...SUMTER...TALBOT...TAYLOR...
TELFAIR...TOOMBS...TREUTLEN...TROUP...TWIGGS...UPSON...WARREN...
WASHINGTON...WEBSTER...WHEELER...WILCOX...WILKINSON.

&&

SHORT TERM...41
LONG TERM....BDL
AVIATION...41

Hazardous weather outlook, Jul 21, 4:45 AM EDT, 8 hours 5 minutes before

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE PEACHTREE CITY GA
445 AM EDT TUE JUL 21 2015

GAZ001>009-011>016-019>025-027-030>039-041>062-066>076-078>086-
089>098-102>113-221000-
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-
445 AM EDT TUE JUL 21 2015

THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF NORTH AND
CENTRAL GEORGIA.

.DAY ONE...TODAY AND TONIGHT...

HEAT ADVISORY IN EFFECT FOR MUCH OF CENTRAL GEORGIA THIS AFTERNOON.
ISOLATED STRONG TO SEVERE THUNDERSTORMS ARE POSSIBLE THIS AFTERNOON
INTO THE EVENING.

WEATHER HAZARDS EXPECTED...
MAX HEAT INDICES OF 103 TO 109 CAN BE EXPECTED. REFER TO THE
HEAT ADVISORY /ATLNPWFFC/ FOR MORE INFORMATION.

GUSTY WINDS...FREQUENT LIGHTNING AND BRIEF HEAVY RAINFALL...CAN BE
EXPECTED WITH ANY STRONG THUNDERSTORMS. ISOLATED STORMS COULD
PRODUCE DAMAGING WINDS.

.DAYS TWO THROUGH SEVEN...WEDNESDAY THROUGH MONDAY...

HEAT INDICES OF 105 OR GREATER WILL BE POSSIBLE OVER PORTIONS OF
CENTRAL GEORGIA ON WEDNESDAY.

ISOLATED STRONG THUNDERSTORMS WILL BE POSSIBLE DURING THE AFTERNOON AND
EVENING HOURS MOST EVERY DAY. GUSTY WINDS...FREQUENT LIGHTNING AND
BRIEF HEAVY RAINFALL WILL BE THE MAIN HAZARDS.

.SPOTTER INFORMATION STATEMENT...
SPOTTER ACTIVATION WILL NOT BE NEEDED THROUGH TONIGHT.

In the hours before

Special weather statement, Jul 21, 12:50 PM EDT, 0 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE PEACHTREE CITY GA
1250 PM EDT TUE JUL 21 2015

GAZ083-084-093-095>097-105-107-211730-
TWIGGS GA-BLECKLEY GA-WILKINSON GA-MACON GA-LAURENS GA-HOUSTON GA-
DOOLY GA-PULASKI GA-
1250 PM EDT TUE JUL 21 2015

...SIGNIFICANT WEATHER ADVISORY FOR TWIGGS...BLECKLEY...WILKINSON...
MACON...LAURENS...HOUSTON...DOOLY AND PULASKI COUNTIES UNTIL 130 PM
EDT...

AT 1248 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
LINE OF STRONG THUNDERSTORMS EXTENDING FROM MONTROSE TO NEAR
DOOLING...AND MOVING EAST AT 20 MPH.

  HAZARD...WINDS UP TO 40 MPH...PEA SIZED HAIL AND FREQUENT
           LIGHTNING.

  IMPACT...PEOPLE OUTDOORS SHOULD SEEK SHELTER IMMEDIATELY. EXPECT
           MINOR DAMAGE TO TREE LIMBS AND BLOWING AROUND OF
           LIGHT...UNSECURED OBJECTS. ELECTRICAL APPLIANCES SHOULD
           NOT BE USED UNLESS IN AN EMERGENCY.

SOME LOCATIONS IN THE PATH OF THESE STORMS INCLUDE
DUBLIN...PERRY...COCHRAN...HAWKINSVILLE...OGLETHORPE...UNADILLA...
MONTEZUMA...EAST DUBLIN...DUDLEY...BYROMVILLE...PINEHURST...
DANVILLE...MONTROSE...LILLY...ALLENTOWN...DOOLING...FOUNTAINVILLE...
GROVANIA...THE OCMULGEE PUBLIC FISHING AREA AND ROYAL.

LAT...LON 3228 8418 3269 8316 3262 8270 3244 8316
      3245 8318 3241 8323 3210 8396
TIME...MOT...LOC 1648Z 270DEG 15KT 3258 8316 3226 8396

The office that day

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

Issued	Product	Office	Counties	Lasted
Jul 20, 8:06 PM EDT	Special Weather Statement	FFC	Polk	24 min
Jul 20, 8:15 PM EDT	Special Weather Statement	FFC	Cobb	30 min
Jul 20, 8:44 PM EDT	Special Weather Statement	FFC	Cobb, Fulton	31 min
Jul 20, 9:14 PM EDT	Special Weather Statement	FFC	DeKalb	31 min
Jul 21, 3:53 AM EDT	Heat Advisory	FFC	Baldwin, Bibb, Bleckley, Chattahoochee, Crawford, Crisp and 40 more	15 hr
Jul 21, 1:09 PM EDT	Severe Thunderstorm Warning	FFC	Bleckley, Dodge, Laurens	51 min
Jul 21, 1:19 PM EDT	Special Weather Statement	FFC	Bleckley, Dooly, Pulaski	41 min
Jul 21, 1:45 PM EDT	Special Weather Statement	FFC	Crisp, Dodge, Wilcox	45 min
Jul 21, 1:54 PM EDT	Special Weather Statement	FFC	Laurens, Treutlen	36 min
Jul 21, 2:25 PM EDT	Special Weather Statement	FFC	Crisp, Dodge, Treutlen, Wheeler, Wilcox	65 min
Jul 21, 2:28 PM EDT	Special Weather Statement	FFC	Paulding, Polk	47 min
Jul 21, 2:31 PM EDT	Special Weather Statement	FFC	Stewart, Webster	44 min
Jul 21, 2:50 PM EDT	Special Weather Statement	FFC	Fannin	40 min
Jul 21, 2:59 PM EDT	Special Weather Statement	FFC	Cobb, Douglas, Fulton	46 min
Jul 21, 3:10 PM EDT	Special Weather Statement	FFC	Montgomery, Telfair, Toombs	50 min
Jul 21, 3:13 PM EDT	Severe Thunderstorm Warning	FFC	Cobb, Douglas, Fulton, Paulding	27 min
Jul 21, 3:24 PM EDT	Special Weather Statement	FFC	Fannin	51 min
Jul 21, 3:28 PM EDT	Special Weather Statement	FFC	DeKalb	32 min
Jul 21, 3:43 PM EDT	Special Weather Statement	FFC	DeKalb, Fulton	32 min
Jul 21, 3:52 PM EDT	Special Weather Statement	FFC	Walker, Whitfield	23 min
Jul 21, 3:56 PM EDT	Special Weather Statement	FFC	Towns, Union	34 min
Jul 21, 4:04 PM EDT	Special Weather Statement	FFC	Clayton, DeKalb	26 min
Jul 21, 4:08 PM EDT	Special Weather Statement	FFC	Chattooga, Gilmer, Gordon, Murray, Pickens, Walker and 1 more	52 min
Jul 21, 4:22 PM EDT	Special Weather Statement	FFC	Lumpkin, White	38 min
Jul 21, 4:25 PM EDT	Special Weather Statement	FFC	Butts, Henry, Newton, Rockdale, Spalding	50 min
Jul 21, 4:46 PM EDT	Special Weather Statement	FFC	Morgan	44 min
Jul 21, 4:51 PM EDT	Special Weather Statement	FFC	Cherokee	39 min
Jul 21, 4:54 PM EDT	Special Weather Statement	FFC	Dawson, Gilmer, Pickens	51 min
Jul 21, 5:27 PM EDT	Special Weather Statement	FFC	Bartow, Cherokee	48 min
Jul 21, 5:31 PM EDT	Special Weather Statement	FFC	Forsyth, Hall, Lumpkin	44 min
Jul 21, 6:07 PM EDT	Special Weather Statement	FFC	Barrow, Forsyth, Gwinnett	38 min
Jul 21, 6:44 PM EDT	Special Weather Statement	FFC	Clarke, Jackson, Oconee, Oglethorpe	46 min
Jul 21, 7:22 PM EDT	Special Weather Statement	FFC	Oglethorpe	38 min

Nearby

Special Weather Statements in Georgia, 2015 Every special weather statement in 2015

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.