Alert archive / Georgia / Special Weather Statements in 2015

Special Weather Statement, NWS Atlanta, GA

July 29, 2015Bleckley County, Wilkinson County, Georgia

NWS Atlanta, GA issued this special weather statement at Jul 29, 2015, 2:56 PM EDT for Bleckley County, Wilkinson County, Georgia. It was in force for 34 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 29, 2015, 2:56 PM EDT (18:56 UTC)
Expired: Jul 29, 2015, 3:30 PM EDT
In force: 34 min
Issued by: NWS Atlanta, GA

Counties Bleckley County, GA, Wilkinson County, GA

The radar

The Robins AFB radar (KJGX), 19 km from the middle of the area, began a volume at 18:56 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

Tallahassee Rgnl, FL (KTLH), launched 12:00Z, 6.9 hours before the alert went out and 267 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: 568 J/kg
Mixed-layer CIN: -69 J/kg
Mixed-layer LCL: 1542 m above ground
0-6 km bulk shear: 8 kt
0-1 km storm-relative helicity: 5 m²/s²
0-3 km storm-relative helicity: 49 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 29, 1:43 PM EDT, 1 hour 13 minutes earlier.

Area forecast discussion, Jul 29, 1:43 PM EDT, 1 hour 13 minutes before

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Hazardous weather outlook, Jul 29, 1:20 PM EDT, 1 hour 36 minutes before

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE PEACHTREE CITY GA
120 PM EDT WED JUL 29 2015

GAZ001>009-011>016-019>025-027-030>039-041>062-066>076-078>086-
089>098-102>113-301100-
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-
120 PM EDT WED JUL 29 2015

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

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

...SCATTERED THUNDERSTORMS EXPECTED THIS AFTERNOON...
...A FEW COULD BE STRONG TO SEVERE...
...HEAT ADVISORY IN EFFECT FOR PARTS OF CENTRAL GEORGIA THIS
AFTERNOON AND EARLY EVENING...

WEATHER HAZARDS EXPECTED...MAIN THREATS FROM THE THUNDERSTORMS
WILL BE STRONG TO POSSIBLY SEVERE WIND GUSTS...FREQUENT LIGHTNING
...LOCALLY HEAVY DOWNPOURS AND SMALL HAIL.

MAX HEAT INDICES OF 105 TO 108 CAN BE EXPECTED FOR AREAS GENERALLY
ALONG AND SOUTH OF A COLUMBUS TO MACON TO SWAINSBORO LINE THIS
AFTERNOON AND EARLY EVENING. PLEASE REFER TO THE HEAT ADVISORY
/ATLNPWFFC/ FOR MORE INFORMATION.

DISCUSSION...
AN UPPER DISTURBANCE WILL INTERACT WITH INCREASING MOISTURE AND
INSTABILITY TO PRODUCE SCATTERED SHOWERS AND THUNDERSTORMS THIS
AFTERNOON AND EVENING. A FEW OF THE STORMS COULD BECOME STRONG TO
SEVERE DURING MAX HEATING. THESE STORMS WILL BE POSSIBLE JUST ABOUT
ANYWHERE THIS AFTERNOON AS THEY MOVE FROM NORTH TO SOUTH.

.DAYS TWO THROUGH SEVEN...THURSDAY THROUGH TUESDAY...
A COLD FRONT WITH SCATTERED SHOWERS AND THUNDERSTORMS WILL PUSH
ACROSS NORTH GEORGIA ON THURSDAY...THEN STALL ACROSS CENTRAL
GEORGIA ON FRIDAY WHERE IT PROVIDES A FOCUS FOR SCATTERED
THUNDERSTORMS OVER THE WEEKEND. THE FRONT PUSHES SOUTH OF THE AREA
BY MONDAY...WITH A DRIER NORTHERLY FLOW LESSONING RAIN CHANCES
ACROSS THE AREA FOR MONDAY AND TUESDAY. BEHIND THE FRONT...PARTS
OF NORTH GEORGIA MAY SEE SLIGHTLY COOLER HIGH TEMPERATURES...
WHILE DAYTIME HIGHS ACROSS CENTRAL GEORGIA REMAIN A BIT ABOVE
SEASONAL NORMALS...PRODUCING AFTERNOON HEAT INDICES IN THE UPPER
90S TO NEAR 105 DEGREES EACH DAY.

.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.

39/16

In the hours before

Special weather statement, Jul 29, 1:48 PM EDT, 1 hour 8 minutes before

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Special weather statement, Jul 29, 2:56 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
Jul 28, 8:10 PM EDT	Special Weather Statement	FFC	Gwinnett	35 min
Jul 29, 2:17 AM EDT	Heat Advisory	FFC	Bibb, Bleckley, Chattahoochee, Crawford, Crisp, Dodge and 23 more	18 hr
Jul 29, 1:48 PM EDT	Special Weather Statement	FFC	Bibb	27 min
Jul 29, 3:08 PM EDT	Special Weather Statement	FFC	Walker	37 min
Jul 29, 4:54 PM EDT	Special Weather Statement	FFC	Washington	36 min
Jul 29, 5:23 PM EDT	Special Weather Statement	FFC	Madison	37 min
Jul 29, 6:26 PM EDT	Special Weather Statement	FFC	Upson	34 min
Jul 29, 7:58 PM EDT	Special Weather Statement	FFC	Walker	32 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.