Alert archive / Georgia / Special Weather Statements in 2015

Special Weather Statement, NWS Atlanta, GA

July 11, 2015Gordon County, Georgia

NWS Atlanta, GA issued this special weather statement at Jul 11, 2015, 3:21 PM EDT for Gordon 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 11, 2015, 3:21 PM EDT (19:21 UTC)
Expired: Jul 11, 2015, 3:45 PM EDT
In force: 24 min
Issued by: NWS Atlanta, GA

County Gordon County, GA

The radar

The Northeast Alabama radar (KHTX), 119 km from the middle of the area, began a volume at 19:24 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 139 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: 614 J/kg
Mixed-layer CIN: -87 J/kg
Mixed-layer LCL: 1284 m above ground
0-6 km bulk shear: 11 kt
0-1 km storm-relative helicity: -11 m²/s²
0-3 km storm-relative helicity: 2 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.

407 
WWUS82 KFFC 111921
SPSFFC

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE PEACHTREE CITY GA
321 PM EDT SAT JUL 11 2015
 
GAZ012-111945-
GORDON GA-
321 PM EDT SAT JUL 11 2015

...SIGNIFICANT WEATHER ADVISORY FOR GORDON COUNTY UNTIL 345 PM EDT...

AT 320 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A 
LINE OF STRONG THUNDERSTORMS EXTENDING FROM ETON TO NEAR RESACA TO 
SOUTHWEST OF TUNNEL HILL...MOVING SOUTH AT 20 MPH.

  HAZARD...WINDS UP TO 40 MPH...UP TO PENNY SIZED HAIL...FREQUENT 
           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 THESE STORMS INCLUDE
CALHOUN...RESACA...RANGER...REDBUD...NICKELSVILLE...SUGAR VALLEY...
SONORAVILLE...OAKMAN AND AUDUBON.

LAT...LON 3463 8491 3462 8491 3462 8486 3461 8486
      3461 8475 3462 8472 3461 8472 3461 8473
      3460 8473 3458 8465 3449 8466 3443 8481
      3452 8502 3459 8506 3462 8506 3462 8493
      3463 8493
TIME...MOT...LOC 1920Z 340DEG 16KT 3481 8473 3464 8488 3477 8514 

$$

The office that day

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

Issued	Product	Office	Counties	Lasted
Jul 11, 3:28 AM EDT	Heat Advisory	FFC	Bibb, Bleckley, Chattahoochee, Crawford, Crisp, Dodge and 26 more	17 hr
Jul 11, 2:55 PM EDT	Special Weather Statement	FFC	Catoosa, Murray, Whitfield	50 min
Jul 11, 3:41 PM EDT	Special Weather Statement	FFC	Gordon	64 min
Jul 11, 4:20 PM EDT	Special Weather Statement	FFC	Cherokee	40 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.