Alert archive / Georgia / Severe Thunderstorm Warnings in 2014

Severe Thunderstorm Warning 113, NWS Atlanta, GA

June 18, 2014Gordon County, Georgia

NWS Atlanta, GA issued this severe thunderstorm warning at Jun 18, 2014, 3:50 PM EDT for Gordon County, Georgia. It was in force for 40 min. 1 report came from inside the area while it was in force.

The area

The outline as issued, with what was reported inside it.

The facts

Issued: Jun 18, 2014, 3:50 PM EDT (19:50 UTC)
Expired: Jun 18, 2014, 4:30 PM EDT
In force: 40 min
Issued by: NWS Atlanta, GA
Area: Storm-based polygon

County Gordon County, GA

The radar

The Atlanta radar (KFFC), 128 km from the middle of the area, began a volume at 19:51 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.

What was reported inside it

Time	Report	Where	Remark
Jun 18, 4:05 PM EDT	TSTM WND DMG	1 S Colima, GA	FOUR TREES REPORTED DOWN ON ROADS INCLUDING HWY 411 AND HWY 53 IN THE EASTERN PART OF THE COUNTY.

Local storm reports filed while the alert was in force, from inside its polygon or its counties.

The nearest sounding before it

Peachtre/Fal Fld, GA (KFFC), launched 12:00Z, 7.8 hours before the alert went out and 128 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: 703 J/kg
Mixed-layer CIN: -108 J/kg
Mixed-layer LCL: 1209 m above ground
0-6 km bulk shear: 10 kt
0-1 km storm-relative helicity: 26 m²/s²
0-3 km storm-relative helicity: 29 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.

419 
WUUS52 KFFC 181950
SVRFFC
GAC129-182030-
/O.NEW.KFFC.SV.W.0113.140618T1950Z-140618T2030Z/

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE PEACHTREE CITY GA
350 PM EDT WED JUN 18 2014

THE NATIONAL WEATHER SERVICE IN PEACHTREE CITY HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  EASTERN GORDON COUNTY IN NORTHWEST GEORGIA

* UNTIL 430 PM EDT

* AT 346 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  LINE OF SEVERE THUNDERSTORMS CAPABLE OF PRODUCING DAMAGING WINDS UP
  TO 60 MPH.  THESE STORMS WERE LOCATED ALONG A LINE EXTENDING   
  FROM RANGER TO FAIRMOUNT. THESE STORMS WERE MOVING WEST AT 5 MPH.

* OTHER LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO
  OAKMAN.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

IN ADDITION TO LARGE HAIL AND DAMAGING WINDS...CONTINUOUS CLOUD TO
GROUND LIGHTNING IS OCCURRING WITH THIS STORM. MOVE INDOORS
IMMEDIATELY! REMEMBER...IF YOU CAN HEAR THUNDER...YOU ARE CLOSE
ENOUGH TO BE STRUCK BY LIGHTNING.

IF YOU SEE WIND DAMAGE...HAIL OR FLOODING...WAIT UNTIL THE STORM HAS
PASSED...AND THEN CALL THE NATIONAL WEATHER SERVICE TOLL FREE AT 1 8
6 6 7 6 3 4 4 6 6. YOU CAN ALSO TWEET YOUR REPORT USING HASHTAG GAWX.

&&

LAT...LON 3458 8466 3453 8466 3443 8466 3441 8466
      3441 8481 3460 8480
TIME...MOT...LOC 1950Z 203DEG 1KT 3453 8470 3448 8469
          3442 8469

$$

The office that day

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

Issued	Product	Office	Counties	Lasted
Jun 18, 12:26 PM EDT	Special Weather Statement	FFC	Dawson, Fannin, Lumpkin	64 min
Jun 18, 12:54 PM EDT	Special Weather Statement	FFC	Paulding	66 min
Jun 18, 1:33 PM EDT	Special Weather Statement	FFC	Lumpkin	57 min
Jun 18, 2:01 PM EDT	Special Weather Statement	FFC	Towns	59 min
Jun 18, 2:07 PM EDT	Severe Thunderstorm Warning	FFC	Towns	23 min
Jun 18, 3:14 PM EDT	Special Weather Statement	FFC	Pickens	46 min
Jun 18, 4:02 PM EDT	Special Weather Statement	FFC	Bartow, Gordon	58 min
Jun 18, 4:43 PM EDT	Special Weather Statement	FFC	Cobb	62 min
Jun 18, 5:46 PM EDT	Special Weather Statement	FFC	Union	44 min

Nearby

Severe Thunderstorm Warnings in Georgia, 2014 Every severe thunderstorm warning in 2014

Sources

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.