Alert archive / Georgia / Special Weather Statements in 2016

Special Weather Statement, NWS Atlanta, GA

July 30, 2016Coweta County, Georgia

NWS Atlanta, GA issued this special weather statement at Jul 30, 2016, 3:21 PM EDT for Coweta County, Georgia. It was in force for 24 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 30, 2016, 3:21 PM EDT (19:21 UTC)
Expired: Jul 30, 2016, 3:45 PM EDT
In force: 24 min
Issued by: NWS Atlanta, GA

County Coweta County, GA

The radar

The Atlanta radar (KFFC), 22 km from the middle of the area, began a volume at 19:23 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, 7.4 hours before the alert went out and 27 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: 412 J/kg
Mixed-layer CIN: -39 J/kg
Mixed-layer LCL: 920 m above ground
0-6 km bulk shear: 16 kt
0-1 km storm-relative helicity: -12 m²/s²
0-3 km storm-relative helicity: -10 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

The text

As transmitted.

735 
WWUS82 KFFC 301921
SPSFFC

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE PEACHTREE CITY GA
321 PM EDT SAT JUL 30 2016
 
GAZ042-044-053-054-301945-
SOUTH FULTON GA-COWETA GA-CARROLL GA-FAYETTE GA-
321 PM EDT SAT JUL 30 2016

...SIGNIFICANT WEATHER ADVISORY FOR SOUTH FULTON...NORTHERN COWETA...
SOUTHEASTERN CARROLL AND NORTHWESTERN FAYETTE COUNTIES UNTIL 345 PM
EDT...

AT 321 PM EDT...A LINE OF STRONG THUNDERSTORMS WAS ALONG A LINE
EXTENDING FROM NEAR CHATTAHOOCHEE HILL COUNTRY TO NEAR NEWNAN...AND
MOVING EAST AT 30 MPH.

  HAZARD...UP TO 40 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. LIGHTNING IS ONE OF NATURE'S 
           LEADING KILLERS. REMEMBER...IF YOU CAN HEAR THUNDER...YOU 
           ARE CLOSE ENOUGH TO BE STRUCK BY LIGHTNING. ELECTRICAL 
           APPLIANCES SHOULD NOT BE USED UNLESS IN AN EMERGENCY. 
           MOTORISTS SHOULD SLOW DOWN AND BE PREPARED FOR POSSIBLE 
           LOSS OF CONTROL DUE TO HYDROPLANING. ALSO...THE HEAVY 
           RAIN MAY CAUSE TEMPORARY STREET FLOODING OR ROAD PONDING 
           IN SLOW DRAINAGE AREAS. WHEN WATER COVERS THE 
           ROAD...REMEMBER TO TURN AROUND DON'T DROWN. 

SOME LOCATIONS IN THE PATH OF THESE STORMS INCLUDE
NEWNAN...PEACHTREE
CITY...FAIRBURN...TYRONE...PALMETTO...SHARPSBURG...
TURIN...CHATTAHOOCHEE HILL COUNTRY...EAST NEWNAN...THOMAS
CROSSROADS... ARNCO-SARGENT...MADRAS...BYERS CROSSROADS...DUNAWAY
GARDENS...ROSCOE... SANDY CREEK...CANNONGATE AND PLANT YATES.

LAT...LON 3344 8491 3349 8489 3355 8488 3357 8488
      3358 8464 3353 8450 3342 8451 3329 8465
      3331 8478 3336 8496
TIME...MOT...LOC 1921Z 276DEG 26KT 3356 8479 3347 8479 3337 8487 

$$

DJN

The office that day

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

Issued	Product	Office	Counties	Lasted
Jul 30, 1:13 PM EDT	Special Weather Statement	FFC	Clayton	47 min
Jul 30, 2:55 PM EDT	Special Weather Statement	FFC	Carroll	35 min
Jul 30, 3:04 PM EDT	Special Weather Statement	FFC	Greene	26 min
Jul 30, 3:48 PM EDT	Special Weather Statement	FFC	Coweta	27 min
Jul 30, 4:20 PM EDT	Special Weather Statement	FFC	Haralson	25 min
Jul 30, 4:31 PM EDT	Special Weather Statement	FFC	Monroe	29 min
Jul 30, 4:40 PM EDT	Special Weather Statement	FFC	Meriwether	35 min
Jul 30, 4:59 PM EDT	Special Weather Statement	FFC	Troup	31 min
Jul 30, 5:02 PM EDT	Special Weather Statement	FFC	Baldwin, Jones	28 min
Jul 30, 5:17 PM EDT	Special Weather Statement	FFC	Upson	43 min
Jul 30, 5:32 PM EDT	Special Weather Statement	FFC	Baldwin, Jones	43 min
Jul 30, 6:09 PM EDT	Special Weather Statement	FFC	Glascock	36 min
Jul 30, 6:28 PM EDT	Special Weather Statement	FFC	Marion, Muscogee	32 min
Jul 30, 6:29 PM EDT	Special Weather Statement	FFC	Stewart	31 min

Nearby

Special Weather Statements in Georgia, 2016 Every special weather statement in 2016

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.