Alert archive / Georgia / Special Weather Statements in 2015

Special Weather Statement, NWS Atlanta, GA

July 21, 2015Oglethorpe County, Georgia

NWS Atlanta, GA issued this special weather statement at Jul 21, 2015, 7:22 PM EDT for Oglethorpe County, Georgia. It was in force for 38 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, 7:22 PM EDT (23:22 UTC)
Expired
Jul 21, 2015, 8:00 PM EDT
In force
38 min
Issued by
NWS Atlanta, GA

County Oglethorpe County, GA

The radar

The Robins AFB radar (KJGX), 130 km from the middle of the area, began a volume at 23:23 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, 11.4 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-pSkew-T log-p diagram, Peachtre/Fal Fld, GA at 12:00Z on 2015-07-21Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1213 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 2015-07-21The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 37 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
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, 3:32 PM EDT, 3 hours 50 minutes earlier.

Area forecast discussion, Jul 21, 3:32 PM EDT, 3 hours 50 minutes before
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Hazardous weather outlook, Jul 21, 7:21 PM EDT, 1 minute before
HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE PEACHTREE CITY GA
721 PM EDT TUE JUL 21 2015

GAZ001>009-011>016-019>025-027-030>039-041>062-066>076-078>086-
089>098-102>113-222330-
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-
721 PM EDT TUE JUL 21 2015

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

.DAY ONE...TONIGHT...

ISOLATED STRONG TO SEVERE THUNDERSTORMS ARE POSSIBLE THROUGH THIS
EVENING.

WEATHER HAZARDS EXPECTED...

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, 5:27 PM EDT, 1 hour 55 minutes before
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Local storm report, Jul 21, 5:28 PM EDT, 1 hour 54 minutes before
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Special weather statement, Jul 21, 5:31 PM EDT, 1 hour 51 minutes before
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Special weather statement, Jul 21, 6:07 PM EDT, 1 hour 15 minutes before
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Special weather statement, Jul 21, 6:44 PM EDT, 38 minutes before
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Special weather statement, Jul 21, 7:22 PM EDT, 0 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE PEACHTREE CITY GA
722 PM EDT TUE JUL 21 2015

GAZ027-036>039-050-051-220000-
MADISON GA-TALIAFERRO GA-OGLETHORPE GA-OCONEE GA-GREENE GA-CLARKE GA-
WILKES GA-
722 PM EDT TUE JUL 21 2015

...SIGNIFICANT WEATHER ADVISORY FOR MADISON...TALIAFERRO...
OGLETHORPE...OCONEE...GREENE...CLARKE AND WILKES COUNTIES UNTIL 800
PM EDT...

AT 722 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
LINE OF STRONG THUNDERSTORMS EXTENDING FROM NEAR COLBERT TO
ARNOLDSVILLE TO NEAR WATKINSVILLE...MOVING SOUTHEAST AT 30 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
GREENSBORO...LEXINGTON...UNION POINT...CRAWFORD...ARNOLDSVILLE...
WOODVILLE...WHITE PLAINS...SILOAM...MAXEYS...RAYLE...ATHENS...
STEPHENS...SMITHONIA...PENFIELD...BARNETT SHOALS...JACKSONS
CROSSROADS...HUTCHINGS...LYNEVILLE...CELESTE AND VESTA.

LAT...LON 3391 8280 3366 8278 3349 8307 3378 8339
      3390 8325 3407 8319
TIME...MOT...LOC 2322Z 303DEG 24KT 3401 8324 3391 8323 3383 8338

The office that day

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

IssuedProductOfficeCountiesLasted
Jul 20, 8:06 PM EDTSpecial Weather StatementFFCPolk24 min
Jul 20, 8:15 PM EDTSpecial Weather StatementFFCCobb30 min
Jul 20, 8:44 PM EDTSpecial Weather StatementFFCCobb, Fulton31 min
Jul 20, 9:14 PM EDTSpecial Weather StatementFFCDeKalb31 min
Jul 21, 3:53 AM EDTHeat AdvisoryFFCBaldwin, Bibb, Bleckley, Chattahoochee, Crawford, Crisp and 40 more15 hr
Jul 21, 12:50 PM EDTSpecial Weather StatementFFCBleckley, Houston40 min
Jul 21, 1:09 PM EDTSevere Thunderstorm WarningFFCBleckley, Dodge, Laurens51 min
Jul 21, 1:19 PM EDTSpecial Weather StatementFFCBleckley, Dooly, Pulaski41 min
Jul 21, 1:45 PM EDTSpecial Weather StatementFFCCrisp, Dodge, Wilcox45 min
Jul 21, 1:54 PM EDTSpecial Weather StatementFFCLaurens, Treutlen36 min
Jul 21, 2:25 PM EDTSpecial Weather StatementFFCCrisp, Dodge, Treutlen, Wheeler, Wilcox65 min
Jul 21, 2:28 PM EDTSpecial Weather StatementFFCPaulding, Polk47 min
Jul 21, 2:31 PM EDTSpecial Weather StatementFFCStewart, Webster44 min
Jul 21, 2:50 PM EDTSpecial Weather StatementFFCFannin40 min
Jul 21, 2:59 PM EDTSpecial Weather StatementFFCCobb, Douglas, Fulton46 min
Jul 21, 3:10 PM EDTSpecial Weather StatementFFCMontgomery, Telfair, Toombs50 min
Jul 21, 3:13 PM EDTSevere Thunderstorm WarningFFCCobb, Douglas, Fulton, Paulding27 min
Jul 21, 3:24 PM EDTSpecial Weather StatementFFCFannin51 min
Jul 21, 3:28 PM EDTSpecial Weather StatementFFCDeKalb32 min
Jul 21, 3:43 PM EDTSpecial Weather StatementFFCDeKalb, Fulton32 min
Jul 21, 3:52 PM EDTSpecial Weather StatementFFCWalker, Whitfield23 min
Jul 21, 3:56 PM EDTSpecial Weather StatementFFCTowns, Union34 min
Jul 21, 4:04 PM EDTSpecial Weather StatementFFCClayton, DeKalb26 min
Jul 21, 4:08 PM EDTSpecial Weather StatementFFCChattooga, Gilmer, Gordon, Murray, Pickens, Walker and 1 more52 min
Jul 21, 4:22 PM EDTSpecial Weather StatementFFCLumpkin, White38 min
Jul 21, 4:25 PM EDTSpecial Weather StatementFFCButts, Henry, Newton, Rockdale, Spalding50 min
Jul 21, 4:46 PM EDTSpecial Weather StatementFFCMorgan44 min
Jul 21, 4:51 PM EDTSpecial Weather StatementFFCCherokee39 min
Jul 21, 4:54 PM EDTSpecial Weather StatementFFCDawson, Gilmer, Pickens51 min
Jul 21, 5:27 PM EDTSpecial Weather StatementFFCBartow, Cherokee48 min
Jul 21, 5:31 PM EDTSpecial Weather StatementFFCForsyth, Hall, Lumpkin44 min
Jul 21, 6:07 PM EDTSpecial Weather StatementFFCBarrow, Forsyth, Gwinnett38 min
Jul 21, 6:44 PM EDTSpecial Weather StatementFFCClarke, Jackson, Oconee, Oglethorpe46 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.