Alert archive / Georgia / Severe Thunderstorm Warnings in 2014

Severe Thunderstorm Warning 251, NWS Atlanta, GA

September 6, 20144 counties in Georgia

NWS Atlanta, GA issued this severe thunderstorm warning at Sep 6, 2014, 7:59 PM EDT for 4 counties in Georgia. It was in force for 30 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: Sep 6, 2014, 7:59 PM EDT (23:59 UTC)
Expired: Sep 6, 2014, 8:29 PM EDT
In force: 30 min
Issued by: NWS Atlanta, GA
Area: Storm-based polygon

Counties Lamar County, GA, Monroe County, GA, Pike County, GA, Spalding County, GA

The radar

The Atlanta radar (KFFC), 38 km from the middle of the area, began a volume at 00:01 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
Sep 6, 8:15 PM EDT	TSTM WND DMG	Experiment, GA	911 CENTER REPORTS A TREE DOWN AT THE SOUTH 18TH STREET AND WALL STREET INTERSECTION AND AT MLK PARKWAY AND ODELL ROAD. THERE IS ALSO A POWER OUTAGE AND A RESIDENT WAS STRUCK BY LIGHTNING.

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, 12.0 hours before the alert went out and 33 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: 805 J/kg
Mixed-layer CIN: -38 J/kg
Mixed-layer LCL: 1022 m above ground
0-6 km bulk shear: 6 kt
0-1 km storm-relative helicity: -18 m²/s²
0-3 km storm-relative helicity: -8 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.

526 
WUUS52 KFFC 062359
SVRFFC
GAC171-207-231-255-070045-
/O.NEW.KFFC.SV.W.0251.140906T2359Z-140907T0045Z/

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE PEACHTREE CITY GA
759 PM EDT SAT SEP 6 2014

THE NATIONAL WEATHER SERVICE IN PEACHTREE CITY HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  NORTHWESTERN MONROE COUNTY IN CENTRAL GEORGIA
  NORTHERN LAMAR COUNTY IN WEST CENTRAL GEORGIA
  NORTHEASTERN PIKE COUNTY IN WEST CENTRAL GEORGIA
  EASTERN SPALDING COUNTY IN WEST CENTRAL GEORGIA

* UNTIL 845 PM EDT

* AT 757 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM CAPABLE OF PRODUCING DAMAGING WINDS UP TO 60
  MPH.  THIS STORM WAS LOCATED NEAR GRIFFIN...MOVING SOUTHEAST AT 5
  MPH.

* OTHER LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO
  MILNER AND ORCHARD HILL.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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 OR TWEET US YOUR REPORT AT NWSATLANTA.

&&

LAT...LON 3333 8425 3323 8412 3320 8412 3320 8409
      3316 8404 3304 8430 3327 8439
TIME...MOT...LOC 2359Z 331DEG 5KT 3326 8427

$$

1 follow-up statement

591 
WWUS52 KFFC 070029
SVSFFC

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE PEACHTREE CITY GA
829 PM EDT SAT SEP 6 2014

GAC171-207-231-255-070039-
/O.CAN.KFFC.SV.W.0251.000000T0000Z-140907T0045Z/
SPALDING GA-PIKE GA-MONROE GA-LAMAR GA-
829 PM EDT SAT SEP 6 2014

...THE SEVERE THUNDERSTORM WARNING FOR NORTHERN LAMAR...NORTHWESTERN
MONROE...NORTHEASTERN PIKE AND SPALDING COUNTIES IS CANCELLED...

THE THUNDERSTORM HAS WEAKENED AND IS NO LONGER EXPECTED TO PRODUCE
SEVERE WEATHER. HOWEVER...STRONG GUSTY WINDS UP TO 45 MPH...VERY
HEAVY RAIN...AND SMALL HAIL ARE STILL POSSIBLE WITH THIS STORM.

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 OR TWEET US YOUR REPORT AT NWSATLANTA.

LAT...LON 3333 8425 3323 8412 3320 8412 3320 8409
      3316 8404 3304 8430 3327 8439
TIME...MOT...LOC 0029Z 331DEG 5KT 3322 8425

$$

The office that day

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

Issued	Product	Office	Counties	Lasted
Sep 6, 12:33 PM EDT	Special Weather Statement	FFC	Lumpkin	42 min
Sep 6, 1:49 PM EDT	Special Weather Statement	FFC	Fannin	41 min
Sep 6, 2:55 PM EDT	Special Weather Statement	FFC	Union	35 min
Sep 6, 4:13 PM EDT	Special Weather Statement	FFC	Harris	32 min
Sep 6, 4:45 PM EDT	Special Weather Statement	FFC	Harris	30 min
Sep 6, 5:14 PM EDT	Special Weather Statement	FFC	Stewart	31 min
Sep 6, 5:25 PM EDT	Special Weather Statement	FFC	Meriwether	35 min
Sep 6, 6:21 PM EDT	Special Weather Statement	FFC	Meriwether	24 min
Sep 6, 6:38 PM EDT	Special Weather Statement	FFC	Clayton	37 min
Sep 6, 6:45 PM EDT	Special Weather Statement	FFC	Chattahoochee	30 min
Sep 6, 6:47 PM EDT	Special Weather Statement	FFC	Jackson	28 min
Sep 6, 7:02 PM EDT	Special Weather Statement	FFC	Meriwether	28 min
Sep 6, 7:21 PM EDT	Special Weather Statement	FFC	Spalding	24 min
Sep 6, 7:42 PM EDT	Special Weather Statement	FFC	Pike	33 min
Sep 6, 7:44 PM EDT	Special Weather Statement	FFC	Madison	31 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.