Alert archive / Georgia / Special Weather Statements in 2014

Special Weather Statement, NWS Atlanta, GA

July 11, 20144 counties in Georgia

NWS Atlanta, GA issued this special weather statement at Jul 11, 2014, 5:02 PM EDT for 4 counties in 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: Jul 11, 2014, 5:02 PM EDT (21:02 UTC)
Expired: Jul 11, 2014, 5:30 PM EDT
In force: 28 min
Issued by: NWS Atlanta, GA

Counties Cobb County, GA, Douglas County, GA, Fulton County, GA, Paulding County, GA

The radar

The Atlanta radar (KFFC), 57 km from the middle of the area, began a volume at 21:04 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, 9.0 hours before the alert went out and 57 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: 710 J/kg
Mixed-layer CIN: -46 J/kg
Mixed-layer LCL: 877 m above ground
0-6 km bulk shear: 11 kt
0-1 km storm-relative helicity: -3 m²/s²
0-3 km storm-relative helicity: 34 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 11, 3:45 PM EDT, 1 hour 17 minutes earlier.

Area forecast discussion, Jul 11, 3:45 PM EDT, 1 hour 17 minutes before

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE PEACHTREE CITY GA
345 PM EDT FRI JUL 11 2014

.SHORT TERM /TONIGHT THROUGH SATURDAY NIGHT/...
WEAK UPPER TROUGH AXIS FINALLY EAST OF THE FORECAST AREA AND WEAK
UPPER RIDGING IS TRYING TO BUILD INTO THE REGION...HOWEVER AMPLE
MOISTURE REMAINS OVER THE AREA FOR ISOLATED TO SCATTERED...MAINLY
DIURNAL...CONVECTION. PRECIPITABLE WATER VALUES REMAIN MODERATE BUT
SLOW MOVEMENT OF STORMS IN A WEAK STEERING ENVIRONMENT WILL CONTINUE
A THREAT FOR LOCALLY HEAVY RAIN...ALTHOUGH WIDESPREAD HYDROLOGICAL
ISSUES ARE NOT ANTICIPATED. LIKEWISE...INSTABILITY REMAINS MODERATE
AT BEST BUT SUFFICIENT FOR A FEW STRONG TO MARGINALLY SEVERE STORMS
EACH AFTERNOON. MAIN THREAT WOULD BE ISOLATED DAMAGING WINDS AS
FREEZING LEVELS AND WET-BULB ZERO HEIGHTS REMAIN A BIT HIGH FOR A
LARGE HAIL THREAT.

20

.LONG TERM /SUNDAY THROUGH FRIDAY/...
NO CHANGES MADE TO THE EXTENDED FORECAST. AMPLIFICATION OF
RIDGE/TROUGH PATTERN ACROSS CONUS BEGINNING SUNDAY/MONDAY STILL ON
TRACK PER 00Z MED RANGE MODELS...WHICH SHOW VERY GOOD AGREEMENT.
WRN RIDGE BUILDS NORTH WHILE NICE UPPER LOW AND BROAD/DEEP TROUGH
PROGGED TO DIP INTO UPPER MIDWEST STATES MON. BULK OF BELOW NORMAL
TEMPS SHOULD STAY NORTH OF THE STATE BUT SHOULD SEE A BRIEF PUSH
OF DRIER AIR AND SLIGHTLY BELOW NORMAL TEMPS ON WED. AS WESTERLIES
ALONG PERIPHERY TROUGH MOVE OVER THE STATE TUES THEN RETURN BACK
NORTH ON THURS...SHOULD SEE GOOD CHANCE OF CONVECTION. NO TROPICAL
ACTIVITY OR OTHER HIGH IMPACT EVENTS SEEN IN MODEL GUIDANCE. USED
BIAS CORRECTED BLEND OF GUIDANCE FOR TEMPS.

01

&&

AVIATION...
18Z UPDATE...
MIXTURE OF MVFR/VFR CONDITIONS CURRENTLY BUT I EXPECT ALL AREAS VFR
BY 19Z OUTSIDE OF SCATTERED CONVECTION. CONVECTIVE COVERAGE WILL
INCREASE SOME ACROSS ALL OF THE FORECAST AREA THROUGH 22Z THEN BEGIN
DIMINISHING. WIDESPREAD MVFR CONDITIONS ARE EXPECTED TO DEVELOP
BETWEEN 06Z AND 14Z WITH LOCAL IFR OR LOWER CONDITIONS. RIGHT NOW I
DO NOT EXPECT ANY IFR OR LOWER CONDITIONS AT ANY TAF SITE DURING
THAT PERIOD...HOWEVER ANY SITE THAT RECEIVES SIGNIFICANT RAINFALL ON
OR IN THE VICINITY OF THE AIRFIELD MAY EVENTUALLY END UP WITH AT
LEAST BRIEF IFR VISIBILITIES AND/OR CEILINGS BY 10Z. ISOLATED TO
SCATTERED CONVECTION WILL DEVELOP AGAIN TOMORROW BY 18Z. WINDS WILL
REMAIN LIGHT...8KTS OR LESS...AND GENERALLY EASTERLY THROUGH THE
PERIOD OUTSIDE OF CONVECTION.

//ATL CONFIDENCE...18Z UPDATE...
MEDIUM.

&&

.PRELIMINARY POINT TEMPS/POPS...
ATHENS          71  92  71  94 /  30  30  10  20
ATLANTA         72  91  73  91 /  20  30  10  20
BLAIRSVILLE     63  87  63  88 /  20  20  10  20
CARTERSVILLE    68  91  68  92 /  20  20  10  20
COLUMBUS        72  94  73  94 /  30  30  20  20
GAINESVILLE     71  90  72  91 /  20  30  10  20
MACON           70  93  70  93 /  30  30  20  20
ROME            67  91  68  92 /  20  20  10  20
PEACHTREE CITY  68  91  68  92 /  20  30  20  20
VIDALIA         72  92  72  95 /  30  50  20  20

&&

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

SHORT TERM...20
LONG TERM....01
AVIATION...20

Hazardous weather outlook, Jul 11, 6:15 AM EDT, 10 hours 47 minutes before

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE PEACHTREE CITY GA
615 AM EDT FRI JUL 11 2014

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-
615 AM EDT FRI JUL 11 2014

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

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

...ISOLATED STRONG TO SEVERE THUNDERSTORMS ARE POSSIBLE THIS
AFTERNOON AND EVENING...

WEATHER HAZARDS EXPECTED...
STRONG GUSTY WINDS...HEAVY RAINFALL AND FREQUENT LIGHTNING MAINLY
EAST OF A CARROLLTON TO BLAIRSVILLE LINE BETWEEN NOON AND 10 PM.

DISCUSSION...
SLIGHTLY DRIER AIR ACROSS FAR NORTH GEORGIA SHOULD PRECLUDE
DEVELOPMENT OF THUNDERSTORMS THERE...BUT ELSEWHERE MODERATE
INSTABILITY WILL ALLOW STORMS TO APPROACH SEVERE LEVELS ONCE
AGAIN.

.DAYS TWO THROUGH SEVEN...SATURDAY THROUGH THURSDAY...

DRIER AIR MAY FILTER ACROSS THE REST OF GEORGIA THIS WEEKEND
LIMITING THE CHANCE FOR THUNDERSTORMS. HOWEVER AS MOISTURE RETURNS
MONDAY...THE CHANCE FOR STORMS WILL INCREASE. THE MAIN HAZARDS
FROM ANY STORMS WILL BE STRONG GUSTY WINDS...FREQUENT LIGHTNING
AND HEAVY RAIN.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION IS NOT REQUESTED BUT SPOTTERS ARE ENCOURAGED TO
SUBMIT STRONG STORM REPORTS THROUGH THE WEB BY GOING TO
WEATHER.GOV/ATLANTA.

In the hours before

Special weather statement, Jul 11, 3:28 PM EDT, 1 hour 34 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE PEACHTREE CITY GA
328 PM EDT FRI JUL 11 2014

GAZ041>044-112000-
328 PM EDT FRI JUL 11 2014

...SIGNIFICANT WEATHER ADVISORY FOR HEAVY RAIN AND 35 MPH WINDS IN
CARROLL...DOUGLAS...HARALSON AND FULTON COUNTIES UNTIL 400 PM EDT...

AT 324 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED
STRONG THUNDERSTORMS FROM BILL ARP TO 5 MILES WEST OF TALLAPOOSA...
MOVING SOUTHEAST AT 10 MPH.

THESE STORMS HAVE THE POTENTIAL TO PRODUCE PEA SIZED HAIL...FREQUENT
CLOUD TO GROUND LIGHTNING AND WIND GUSTS TO 35 MPH AS THEY MOVE
ACROSS CARROLL...DOUGLAS...HARALSON AND FULTON COUNTIES THROUGH 400
PM EDT. SOME LOCATIONS IN THE PATH OF THESE STORMS INCLUDE WINSTON...
LAKE VAL-DO-MAR...BOWDON JUNCTION...VILLA RICA...TEMPLE...BREMEN...
WACO...TALLAPOOSA...ABILENE...BILL ARP...TREASURE LAKE...FAIRPLAY...
CHATTAHOOCHEE HILL COUNTRY...HANNAH AND SEATON LAKE. HEAVY DOWNPOURS
WILL CAUSE PONDING OF WATER ON ROADWAYS.

&&

LAT...LON 3377 8525 3377 8476 3357 8466 3349 8516
      3366 8535 3381 8537
TIME...MOT...LOC 1928Z 322DEG 7KT 3368 8480 3364 8514
          3375 8538

Local storm report, Jul 11, 3:37 PM EDT, 1 hour 25 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE PEACHTREE CITY GA
337 PM EDT FRI JUL 11 2014

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

0730 PM     TSTM WND DMG     MCDONOUGH               33.45N  84.15W
07/09/2014                   HENRY              GA   EMERGENCY MNGR

            EMERGENCY MANAGER REPORTED 7 TREES WERE DOWN AND SHED
            DAMAGE.

&&

EVENT NUMBER FFC1400753

KOVACIK

Special weather statement, Jul 11, 4:05 PM EDT, 57 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE PEACHTREE CITY GA
405 PM EDT FRI JUL 11 2014

GAZ031>033-042>044-053-112030-
405 PM EDT FRI JUL 11 2014

...SIGNIFICANT WEATHER ADVISORY FOR HEAVY RAIN AND 35 MPH WINDS IN
PAULDING...CARROLL...COBB...COWETA...DOUGLAS AND FULTON COUNTIES
UNTIL 430 PM EDT...

AT 359 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED
STRONG THUNDERSTORMS FROM UNION TO CAMPBELLTON...MOVING SOUTH AT 5
MPH.

THESE STORMS HAVE THE POTENTIAL TO PRODUCE DIME SIZED HAIL...FREQUENT
CLOUD TO GROUND LIGHTNING AND WIND GUSTS TO 35 MPH AS THEY MOVE
ACROSS PAULDING...CARROLL...COBB...COWETA...DOUGLAS AND FULTON
COUNTIES THROUGH 430 PM EDT. SOME LOCATIONS IN THE PATH OF THESE
STORMS INCLUDE SANDTOWN...SWEETWATER CREEK STATE PARK...LITHIA
SPRINGS...SIX FLAGS OVER GEORGIA...AUSTELL...BROWNSVILLE...
YORKVILLE...DOUGLASVILLE...UNION...NEW GEORGIA...CAMPBELLTON...
CHATTAHOOCHEE HILL COUNTRY...PALMETTO...BILL ARP AND WINSTON. HEAVY
DOWNPOURS WILL CAUSE PONDING OF WATER ON ROADWAYS.

&&

LAT...LON 3395 8503 3395 8499 3395 8498 3397 8497
      3387 8482 3377 8448 3350 8464 3359 8485
      3368 8501
TIME...MOT...LOC 2004Z 351DEG 6KT 3387 8495 3378 8480
          3368 8463

Special weather statement, Jul 11, 4:30 PM EDT, 32 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE PEACHTREE CITY GA
430 PM EDT FRI JUL 11 2014

GAZ031>033-043-044-112100-
430 PM EDT FRI JUL 11 2014

...SIGNIFICANT WEATHER ADVISORY FOR EXCESSIVE LIGHTNING AND HEAVY
RAIN IN PAULDING...COBB...DOUGLAS AND FULTON COUNTIES UNTIL 500 PM
EDT...

AT 427 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED
STRONG THUNDERSTORMS OVER BROWNSVILLE. THESE THUNDERSTORMS WERE
NEARLY STATIONARY.

WIND GUSTS OF 40 MPH ARE LIKELY AS THESE STORMS MOVE ACROSS
PAULDING...COBB...DOUGLAS AND FULTON COUNTIES THROUGH 500 PM EDT.
SOME LOCATIONS IN THE PATH OF THESE STORMS INCLUDE BOLTON...LITHIA
SPRINGS...LOST MOUNTAIN PARK...JIM R MILLER PARK...DOBBINS AIR
RESERVE BASE...VININGS...MABLETON...AUSTELL...POWDER SPRINGS...
SMYRNA...MARIETTA...BROWNSVILLE...HIRAM...DALLAS AND NEW GEORGIA.

&&

LAT...LON 3391 8494 3400 8444 3374 8445 3363 8490
      3373 8491 3378 8490 3379 8494
TIME...MOT...LOC 2029Z 357DEG 2KT 3379 8471

Special weather statement, Jul 11, 4:51 PM EDT, 11 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE PEACHTREE CITY GA
451 PM EDT FRI JUL 11 2014

GAZ021-112115-
451 PM EDT FRI JUL 11 2014

...SIGNIFICANT WEATHER ADVISORY FOR LIGHTNING AND HEAVY RAIN IN
CHEROKEE COUNTY UNTIL 515 PM EDT...

AT 448 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
STRONG THUNDERSTORM OVER REAVIS MOUNTAIN...MOVING SOUTHWEST AT 5 MPH.

THIS STORM HAS THE POTENTIAL TO PRODUCE FREQUENT CLOUD TO GROUND
LIGHTNING AND HEAVY RAIN AS IT MOVES SLOWLY ACROSS CHEROKEE COUNTY
THROUGH 515 PM EDT. SOME LOCATIONS IN THE PATH OF THIS STORM INCLUDE
REAVIS MOUNTAIN...BUFFINGTON AND BALL GROUND. HEAVY DOWNPOURS WILL
CAUSE PONDING OF WATER ON ROADWAYS AND TEMPORARY STREET FLOODING.

&&

LAT...LON 3438 8442 3438 8426 3428 8426 3419 8444
      3438 8455 3438 8445 3439 8444 3439 8443
TIME...MOT...LOC 2049Z 064DEG 3KT 3435 8435

16

Special weather statement, Jul 11, 5:02 PM EDT, 0 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE PEACHTREE CITY GA
502 PM EDT FRI JUL 11 2014

GAZ031>033-043-044-112130-
502 PM EDT FRI JUL 11 2014

...SIGNIFICANT WEATHER ADVISORY FOR HEAVY RAIN AND FREQUENT
LIGHTNING IN PAULDING...COBB...DOUGLAS AND FULTON COUNTIES UNTIL 530
PM EDT...

AT 459 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED
STRONG THUNDERSTORMS OVER AUSTELL. THESE THUNDERSTORMS WERE NEARLY
STATIONARY.

RUNOFF FROM THESE STORMS WILL CAUSE MINOR FLOODING OF SMALL CREEKS
AND STREAMS...URBAN AREAS...HIGHWAYS...STREETS AND UNDERPASSES ACROSS
PAULDING...COBB...DOUGLAS AND FULTON COUNTIES...INCLUDING AREAS
AROUND DUE WEST...LOST MOUNTAIN PARK...JIM R MILLER PARK...WHITE
WATER PARK...DOBBINS AIR RESERVE BASE...VININGS...MABLETON...
AUSTELL...POWDER SPRINGS...SMYRNA...MARIETTA...KENNESAW...
BROWNSVILLE...HIRAM AND DALLAS. ADDITIONALLY...COUNTRY ROADS AND
FARMLANDS ALONG THE BANKS OF CREEKS AND STREAMS ARE SUBJECT TO MINOR
FLOODING.

&&

LAT...LON 3405 8437 3364 8443 3362 8486 3402 8488
TIME...MOT...LOC 2101Z 354DEG 1KT 3381 8465

The office that day

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

Issued	Product	Office	Counties	Lasted
Jul 10, 9:06 PM EDT	Special Weather Statement	FFC	Floyd	39 min
Jul 10, 9:57 PM EDT	Special Weather Statement	FFC	Floyd	63 min
Jul 10, 10:15 PM EDT	Flash Flood Warning	FFC	Floyd	6 hr
Jul 10, 10:33 PM EDT	Special Weather Statement	FFC	Heard	42 min
Jul 10, 11:04 PM EDT	Special Weather Statement	FFC	White	41 min
Jul 11, 12:00 AM EDT	Special Weather Statement	FFC	Lumpkin	30 min
Jul 11, 2:47 PM EDT	Special Weather Statement	FFC	Clayton, Fayette	28 min
Jul 11, 2:52 PM EDT	Special Weather Statement	FFC	Meriwether, Troup	38 min
Jul 11, 3:25 PM EDT	Special Weather Statement	FFC	Fayette, Spalding	35 min
Jul 11, 3:28 PM EDT	Special Weather Statement	FFC	Carroll, Douglas	32 min
Jul 11, 4:05 PM EDT	Special Weather Statement	FFC	Douglas	25 min
Jul 11, 4:30 PM EDT	Special Weather Statement	FFC	Cobb, Douglas, Fulton, Paulding	30 min
Jul 11, 4:51 PM EDT	Special Weather Statement	FFC	Cherokee	24 min
Jul 11, 5:32 PM EDT	Special Weather Statement	FFC	Cobb	28 min
Jul 11, 6:01 PM EDT	Special Weather Statement	FFC	Cherokee	29 min
Jul 11, 6:23 PM EDT	Special Weather Statement	FFC	Laurens, Treutlen, Wheeler	37 min
Jul 11, 6:39 PM EDT	Flash Flood Warning	FFC	Forsyth, Fulton, Gwinnett	6 hr
Jul 11, 7:30 PM EDT	Special Weather Statement	FFC	Barrow	30 min

Nearby

Special Weather Statements in Georgia, 2014 Every special weather statement in 2014

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.