Alert archive / Georgia / Special Weather Statements in 2013

Special Weather Statement, NWS Atlanta, GA

August 14, 2013Dawson County, Georgia

NWS Atlanta, GA issued this special weather statement at Aug 14, 2013, 9:34 PM EDT for Dawson County, Georgia. It was in force for 41 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 14, 2013, 9:34 PM EDT (01:34 UTC)
Expired: Aug 14, 2013, 10:15 PM EDT
In force: 41 min
Issued by: NWS Atlanta, GA

County Dawson County, GA

The radar

The Atlanta radar (KFFC), 126 km from the middle of the area, began a volume at 01:35 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 00:00Z, 1.6 hours before the alert went out and 124 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: 939 J/kg
Mixed-layer CIN: -2 J/kg
Mixed-layer LCL: 587 m above ground
0-6 km bulk shear: 7 kt
0-1 km storm-relative helicity: -8 m²/s²
0-3 km storm-relative helicity: 26 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 Aug 14, 8:45 PM EDT, 49 minutes earlier.

Area forecast discussion, Aug 14, 8:45 PM EDT, 49 minutes before

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Hazardous weather outlook, Aug 14, 12:00 PM EDT, 9 hours 34 minutes before

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE PEACHTREE CITY GA
1200 PM EDT WED AUG 14 2013

GAZ001>009-011>016-019>025-027-030>039-041>062-066>076-078>086-
089>098-102>113-151000-
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-
1200 PM EDT WED AUG 14 2013

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

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

SCATTERED TO POSSIBLY NUMEROUS THUNDERSTORMS ACROSS PORTIONS OF
CENTRAL GEORGIA INTO TONIGHT

WEATHER HAZARDS EXPECTED...
LOCALLY HEAVY RAIN AND FREQUENT LIGHTNING WITH ANY THUNDERSTORM.
ISOLATED STRONG THUNDERSTORMS WILL HAVE GUSTY WINDS AND POSSIBLY
SMALL HAIL.

DISCUSSION...
A SLOW MOVING COLD FRONT WILL MOVE TO CENTRAL TO SOUTH GEORGIA
THROUGH TONIGHT. MOISTURE AND INSTABILITY WILL COMBINE TO PRODUCE
SCATTERED TO POSSIBLY NUMEROUS THUNDERSTORMS OVER PORTIONS OF
CENTRAL GEORGIA WITH ISOLATED STRONG STORMS POSSIBLE. SCATTERED
THUNDERSTORMS CAN BE EXPECTED FURTHER TO THE NORTH.

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

WEATHER HAZARDS EXPECTED...
HEAVY RAIN WITH LOCALIZED FLOODING...OCCASIONAL LIGHTNING AND GUSTY
WINDS.

DISCUSSION...
A STATIONARY FRONT AND DEVELOPING UPPER LEVEL TROUGH WILL BECOME THE
FOCUS FOR A WET PERIOD AS DEEP TROPICAL MOISTURE MOVES OVER THE AREA
FOR THE WEEKEND. CONDITIONS WILL CONTINUE TO BE MONITORED CLOSELY
FOR POTENTIAL FLOODING.

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

In the hours before

Special weather statement, Aug 14, 6:47 PM EDT, 2 hours 47 minutes before

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Special weather statement, Aug 14, 6:59 PM EDT, 2 hours 35 minutes before

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Special weather statement, Aug 14, 7:46 PM EDT, 1 hour 48 minutes before

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Special weather statement, Aug 14, 8:11 PM EDT, 1 hour 23 minutes before

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Special weather statement, Aug 14, 9:20 PM EDT, 14 minutes before

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Special weather statement, Aug 14, 9:34 PM EDT, 0 minutes before

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The office that day

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

Issued	Product	Office	Counties	Lasted
Aug 14, 8:11 PM EDT	Special Weather Statement	FFC	Emanuel	49 min
Aug 14, 9:04 PM EDT	Flash Flood Warning	FFC	Laurens	6 hr
Aug 14, 9:20 PM EDT	Special Weather Statement	FFC	Jefferson, Johnson	40 min
Aug 14, 9:38 PM EDT	Special Weather Statement	FFC	Fulton	52 min
Aug 15, 5:48 AM EDT	Special Weather Statement	FFC	Harris, Muscogee	57 min
Aug 15, 6:46 AM EDT	Special Weather Statement	FFC	Harris, Muscogee	59 min
Aug 15, 10:15 AM EDT	Special Weather Statement	FFC	Bibb	2 hr
Aug 15, 10:43 AM EDT	Flash Flood Warning	FFC	Baldwin, Hancock, Putnam	6 hr
Aug 15, 12:37 PM EDT	Flash Flood Warning	FFC	Dodge, Laurens, Treutlen	6 hr
Aug 15, 2:03 PM EDT	Special Weather Statement	FFC	Crisp, Dooly, Sumter, Wilcox	42 min
Aug 15, 2:56 PM EDT	Special Weather Statement	FFC	Crisp	94 min
Aug 15, 3:09 PM EDT	Special Weather Statement	FFC	Telfair	96 min
Aug 15, 3:45 PM EDT	Flash Flood Watch	FFC	Baldwin, Barrow, Bartow, Bibb, Bleckley, Butts and 82 more	4 days

Nearby

Special Weather Statements in Georgia, 2013 Every special weather statement in 2013

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.