Alert archive / Georgia / Special Weather Statements in 2015

Special Weather Statement, NWS Atlanta, GA

August 19, 2015Clarke County, Oconee County, Georgia

NWS Atlanta, GA issued this special weather statement at Aug 19, 2015, 2:09 PM EDT for Clarke County, Oconee County, Georgia. It was in force for 51 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
Aug 19, 2015, 2:09 PM EDT (18:09 UTC)
Expired
Aug 19, 2015, 3:00 PM EDT
In force
51 min
Issued by
NWS Atlanta, GA

Counties Clarke County, GA, Oconee County, GA

The radar

The Atlanta radar (KFFC), 115 km from the middle of the area, began a volume at 18:08 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, 6.2 hours before the alert went out and 110 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-pSkew-T log-p diagram, Peachtre/Fal Fld, GA at 12:00Z on 2015-08-19Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 323 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Peachtre/Fal Fld, GA at 12:00Z on 2015-08-19The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 63 square meters per square second.1939Sfc1 km3 km6 km9 kmRMLM
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
323 J/kg
Mixed-layer CIN
-95 J/kg
Mixed-layer LCL
988 m above ground
0-6 km bulk shear
16 kt
0-1 km storm-relative helicity
63 m²/s²
0-3 km storm-relative helicity
57 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.6

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 Aug 19, 11:13 AM EDT, 2 hours 56 minutes earlier.

Area forecast discussion, Aug 19, 11:13 AM EDT, 2 hours 56 minutes before
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Hazardous weather outlook, Aug 19, 10:58 AM EDT, 3 hours 11 minutes before
HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE PEACHTREE CITY GA
1058 AM EDT WED AUG 19 2015

GAZ001>009-011>016-019>025-027-030>039-041>062-066>076-078>086-
089>098-102>113-201500-
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-
1058 AM EDT WED AUG 19 2015

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

.DAY ONE...THIS AFTERNOON AND TONIGHT...

A VERY MOIST AND MODERATELY UNSTABLE ENVIRONMENT WILL REMAIN
ACROSS NORTH AND CENTRAL GEORGIA THROUGH TONIGHT. SCATTERED
SHOWERS AND ISOLATED THUNDERSTORMS WILL INCREASE IN COVERAGE THIS
AFTERNOON AND CONTINUE THROUGH THIS EVENING. SOME OF THE
THUNDERSTORMS COULD BECOME STRONG TO BRIEFLY SEVERE.

WEATHER HAZARDS EXPECTED...

THE MAIN STORM THREATS WILL BE WIND GUSTS TO 50 MPH...LOCALLY HEAVY
RAIN THAT COULD CAUSE BRIEF FLOODING ALONG LOW LYING FLOOD PRONE
AREAS...AND LIGHTNING. THE MOST LIKELY TIME FOR STRONG WINDS AND
LIGHTNING WILL BE BETWEEN 2PM AND 10PM.

.DAYS TWO THROUGH SEVEN...THURSDAY THROUGH TUESDAY...

AFTERNOON AND EVENING THUNDERSTORMS WILL REMAIN POSSIBLE THROUGH
TUESDAY WITH HEAVY RAINFALL...GUSTY WINDS AND LIGHTNING EXPECTED.

.SPOTTER INFORMATION STATEMENT...

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

In the hours before

Special weather statement, Aug 19, 12:10 PM EDT, 1 hour 59 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE PEACHTREE CITY GA
1210 PM EDT WED AUG 19 2015

GAZ012-019-020-191645-
GORDON GA-BARTOW GA-FLOYD GA-
1210 PM EDT WED AUG 19 2015

...SIGNIFICANT WEATHER ADVISORY FOR GORDON...NORTHERN BARTOW AND
SOUTHEASTERN FLOYD COUNTIES UNTIL 1245 PM EDT...

AT 1209 PM EDT...A STRONG THUNDERSTORM WAS OVER SHANNON...OR 8 MILES
NORTHEAST OF ROME...MOVING EAST AT 35 MPH.

  HAZARD...40 TO 50 MPH WIND AND HEAVY RAIN.

  IMPACT...PEOPLE OUTDOORS SHOULD SEEK SHELTER IMMEDIATELY. EXPECT
           MINOR DAMAGE TO TREE LIMBS AND BLOWING AROUND OF
           LIGHT...UNSECURED OBJECTS. LOCALIZED FLOODING IN LOW
           LYING AND POOR DRAINAGE AREAS IS ALSO LIKELY. MOTORISTS
           SHOULD SLOW DOWN AND BE PREPARED FOR POSSIBLE LOSS OF
           CONTROL DUE TO HYDROPLANING. WHEN WATER COVERS THE
           ROAD...REMEMBER TO TURN AROUND DON'T DROWN.

SOME LOCATIONS IN THE PATH OF THIS STORM INCLUDE
ROME...CARTERSVILLE...CALHOUN...ADAIRSVILLE...WHITE...KINGSTON...
PLAINVILLE...SHANNON...CASSVILLE...FAIRMOUNT...RANGER...REDBUD...PINE
LOG...FUNKHOUSER...ARMUCHEE...FOLSOM...PINSON...SONORAVILLE...OAKMAN
AND LINDALE.

LAT...LON 3436 8530 3460 8473 3460 8472 3461 8472
      3459 8470 3458 8465 3448 8466 3444 8466
      3436 8465 3435 8464 3435 8465 3424 8465
      3419 8524
TIME...MOT...LOC 1609Z 255DEG 31KT 3433 8506
Special weather statement, Aug 19, 2:09 PM EDT, 0 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE PEACHTREE CITY GA
209 PM EDT WED AUG 19 2015

GAZ025-027-035>038-047-049-050-191900-
MADISON GA-MORGAN GA-OGLETHORPE GA-OCONEE GA-GREENE GA-BARROW GA-
CLARKE GA-JACKSON GA-WALTON GA-
209 PM EDT WED AUG 19 2015

...SIGNIFICANT WEATHER ADVISORY FOR SOUTHWESTERN MADISON...
NORTHWESTERN MORGAN...WESTERN OGLETHORPE...OCONEE...NORTHWESTERN
GREENE...SOUTHEASTERN BARROW...CLARKE...SOUTHEASTERN JACKSON AND
NORTHEASTERN WALTON COUNTIES UNTIL 300 PM EDT...

AT 208 PM EDT...A STRONG THUNDERSTORM WAS NEAR BOSTWICK...OR 7 MILES
NORTH OF MADISON...MOVING EAST AT 10 MPH.

  HAZARD...FREQUENT CLOUD TO GROUND LIGHTNING AND HEAVY RAIN.

  IMPACT...PEOPLE OUTDOORS SHOULD SEEK SHELTER IMMEDIATELY.
           ELECTRICAL APPLIANCES SHOULD NOT BE USED UNLESS IN AN
           EMERGENCY. LOCALIZED FLOODING IN LOW LYING AND POOR
           DRAINAGE AREAS IS ALSO LIKELY. MOTORISTS SHOULD SLOW DOWN
           AND BE PREPARED FOR POSSIBLE LOSS OF CONTROL DUE TO
           HYDROPLANING. WHEN WATER COVERS THE ROAD...REMEMBER TO
           TURN AROUND DON'T DROWN.

SOME LOCATIONS IN THE PATH OF THIS STORM INCLUDE
WINDER...MONROE...WATKINSVILLE...ATHENS...STATHAM...ARCADE...
NICHOLSON...WINTERVILLE...BOGART...CRAWFORD...NORTH HIGH SHOALS...
BETHLEHEM...COLBERT...BOSTWICK...ARNOLDSVILLE...ILA...GOOD HOPE...
BISHOP...MAXEYS AND HULL.

LAT...LON 3361 8353 3392 8380 3420 8331 3376 8307
TIME...MOT...LOC 1808Z 276DEG 10KT 3371 8347

The office that day

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

IssuedProductOfficeCountiesLasted
Aug 18, 8:36 PM EDTSpecial Weather StatementFFCCoweta, Fayette39 min
Aug 18, 11:52 PM EDTAreal Flood WarningFFCMorgan, Oconee4 hr
Aug 19, 12:07 AM EDTRiver Flood WarningFFCGwinnett, Walton7 days
Aug 19, 12:10 PM EDTSpecial Weather StatementFFCBartow, Floyd, Gordon35 min
Aug 19, 2:54 PM EDTSpecial Weather StatementFFCMorgan, Oconee51 min
Aug 19, 3:19 PM EDTSpecial Weather StatementFFCBanks, Hall41 min
Aug 19, 3:53 PM EDTSpecial Weather StatementFFCBarrow52 min
Aug 19, 4:44 PM EDTSpecial Weather StatementFFCHancock, Warren46 min
Aug 19, 4:48 PM EDTSpecial Weather StatementFFCDeKalb, Rockdale42 min
Aug 19, 4:51 PM EDTSpecial Weather StatementFFCBartow, Cherokee39 min
Aug 19, 5:09 PM EDTSpecial Weather StatementFFCDouglas51 min
Aug 19, 5:31 PM EDTSpecial Weather StatementFFCWarren44 min
Aug 19, 5:35 PM EDTSpecial Weather StatementFFCBarrow40 min
Aug 19, 5:53 PM EDTSpecial Weather StatementFFCFulton52 min
Aug 19, 6:00 PM EDTSpecial Weather StatementFFCGilmer, Gordon, Murray45 min
Aug 19, 6:02 PM EDTFlash Flood WarningFFCCarroll6 hr
Aug 19, 6:14 PM EDTFlash Flood WarningFFCDouglas, Fulton6 hr
Aug 19, 6:22 PM EDTSpecial Weather StatementFFCCherokee, Dawson, Forsyth38 min
Aug 19, 6:48 PM EDTSpecial Weather StatementFFCChattooga, Gordon42 min
Aug 19, 7:33 PM EDTSpecial Weather StatementFFCMurray, Whitfield57 min

Nearby

Special Weather Statements in Georgia, 2015Every 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.