Alert archive / Georgia / Special Weather Statements in 2015

Special Weather Statement, NWS Atlanta, GA

July 29, 2015Upson County, Georgia

NWS Atlanta, GA issued this special weather statement at Jul 29, 2015, 6:26 PM EDT for Upson 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, 6:26 PM EDT (22:26 UTC)
Expired: Jul 29, 2015, 7:00 PM EDT
In force: 34 min
Issued by: NWS Atlanta, GA

County Upson County, GA

The radar

The Atlanta radar (KFFC), 72 km from the middle of the area, began a volume at 22:29 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

Birmingham, AL (KBMX), launched 12:00Z, 10.4 hours before the alert went out and 241 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: 1420 J/kg
Mixed-layer CIN: -47 J/kg
Mixed-layer LCL: 969 m above ground
0-6 km bulk shear: 5 kt
0-1 km storm-relative helicity: -18 m²/s²
0-3 km storm-relative helicity: -22 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, 3:41 PM EDT, 2 hours 45 minutes earlier.

Area forecast discussion, Jul 29, 3:41 PM EDT, 2 hours 45 minutes before

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Hazardous weather outlook, Jul 29, 1:20 PM EDT, 5 hours 6 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, 4 hours 38 minutes before

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Special weather statement, Jul 29, 2:56 PM EDT, 3 hours 30 minutes before

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Special weather statement, Jul 29, 3:08 PM EDT, 3 hours 18 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE PEACHTREE CITY GA
308 PM EDT WED JUL 29 2015

GAZ002-291945-
WALKER GA-
308 PM EDT WED JUL 29 2015

...SIGNIFICANT WEATHER ADVISORY FOR SOUTHERN WALKER COUNTY UNTIL 345
PM EDT...

AT 307 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
STRONG THUNDERSTORM NEAR LA FAYETTE...OR NEAR LAFAYETTE...MOVING
SOUTH AT 10 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
LAFAYETTE...LA FAYETTE...NOBLE...NAOMI...COOPER HEIGHTS...CENTER
POST...ROCK SPRING...SUTTLES MILL AND LINWOOD.

LAT...LON 3482 8543 3485 8526 3463 8511 3459 8531
      3459 8535 3458 8535 3458 8537 3459 8537
      3459 8543
TIME...MOT...LOC 1907Z 346DEG 10KT 3478 8533

Special weather statement, Jul 29, 4:54 PM EDT, 1 hour 32 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE PEACHTREE CITY GA
454 PM EDT WED JUL 29 2015

GAZ074-292130-
WASHINGTON GA-
454 PM EDT WED JUL 29 2015

...SIGNIFICANT WEATHER ADVISORY FOR SOUTHERN WASHINGTON COUNTY UNTIL
530 PM EDT...

AT 454 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
STRONG THUNDERSTORM NEAR RIDDLEVILLE...OR 7 MILES SOUTHEAST OF
SANDERSVILLE...MOVING WEST AT 5 MPH.

  HAZARD...40 TO 50 MPH WIND...FREQUENT CLOUD TO GROUND LIGHTNING
           AND HEAVY RAIN.

  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. 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
SANDERSVILLE...TENNILLE...HARRISON AND RIDDLEVILLE.

LAT...LON 3280 8278 3280 8280 3281 8280 3279 8287
      3278 8291 3304 8292 3308 8268 3281 8266
TIME...MOT...LOC 2054Z 093DEG 5KT 3291 8272

Special weather statement, Jul 29, 5:23 PM EDT, 1 hour 3 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE PEACHTREE CITY GA
523 PM EDT WED JUL 29 2015

GAZ027-038-292200-
MADISON GA-OGLETHORPE GA-
523 PM EDT WED JUL 29 2015

...SIGNIFICANT WEATHER ADVISORY FOR SOUTHERN MADISON AND NORTHWESTERN
OGLETHORPE COUNTIES UNTIL 600 PM EDT...

AT 523 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
STRONG THUNDERSTORM NEAR COMER...OR 8 MILES EAST OF DANIELSVILLE...
MOVING SOUTHWEST AT 15 MPH.

  HAZARD...40 TO 50 MPH WIND...FREQUENT CLOUD TO GROUND LIGHTNING
           AND HEAVY RAIN.

  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. 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
DANIELSVILLE...LEXINGTON...COMER...WINTERVILLE...CRAWFORD...
COLBERT...ARNOLDSVILLE...CARLTON...HULL...ATHENS-CLARKE COUNTY
(BALANCE)...SMITHONIA...DIAMOND HILL...POINT PETER...WATSON MILL
BRIDGE STATE PARK...PAOLI AND DUNLAP.

LAT...LON 3417 8310 3415 8306 3412 8305 3411 8303
      3410 8304 3403 8296 3385 8313 3396 8327
      3400 8327 3400 8328 3404 8336 3419 8310
TIME...MOT...LOC 2123Z 046DEG 12KT 3409 8308

Special weather statement, Jul 29, 6:26 PM EDT, 0 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE PEACHTREE CITY GA
626 PM EDT WED JUL 29 2015

GAZ069-079-080-292300-
TALBOT GA-UPSON GA-TAYLOR GA-
626 PM EDT WED JUL 29 2015

...SIGNIFICANT WEATHER ADVISORY FOR NORTHEASTERN TALBOT...UPSON AND
NORTHERN TAYLOR COUNTIES UNTIL 700 PM EDT...

AT 626 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
STRONG THUNDERSTORM NEAR THE ROCK...OR NEAR THOMASTON...MOVING SOUTH
AT 15 MPH.

  HAZARD...40 TO 50 MPH WIND...FREQUENT CLOUD TO GROUND LIGHTNING
           AND HEAVY RAIN.

  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. 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
THOMASTON...YATESVILLE...LINCOLN PARK...THE ROCK...CARSONVILLE...BIG
LAZER CREEK WMA...REDBONE CROSSROADS...SALEM...LOGTOWN AND HANNAHS
MILL.

LAT...LON 3274 8446 3299 8428 3299 8414 3280 8415
      3269 8420 3269 8419 3268 8415 3267 8415
TIME...MOT...LOC 2226Z 013DEG 13KT 3291 8425

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, 2:56 PM EDT	Special Weather Statement	FFC	Bleckley, Wilkinson	34 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, 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.