Alert archive / Georgia / Special Weather Statements in 2017

Special Weather Statement, NWS Atlanta, GA

August 7, 2017Toombs County, Georgia

NWS Atlanta, GA issued this special weather statement at Aug 7, 2017, 6:29 PM EDT for Toombs County, Georgia. It was in force for 31 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: Aug 7, 2017, 6:29 PM EDT (22:29 UTC)
Expired: Aug 7, 2017, 7:00 PM EDT
In force: 31 min
Issued by: NWS Atlanta, GA
Hail: 0.25 in
Wind: 40

County Toombs County, GA

The radar

The Robins AFB radar (KJGX), 119 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

Jacksonville, FL (KJAX), launched 12:00Z, 10.5 hours before the alert went out and 184 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: 1371 J/kg
Mixed-layer CIN: -28 J/kg
Mixed-layer LCL: 764 m above ground
0-6 km bulk shear: 16 kt
0-1 km storm-relative helicity: -30 m²/s²
0-3 km storm-relative helicity: -40 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

The text

As transmitted.

819 
WWUS82 KFFC 072229
SPSFFC

Special Weather Statement
National Weather Service Peachtree City GA
629 PM EDT MON AUG 7 2017
 
GAZ113-072300-
Toombs GA-
629 PM EDT MON AUG 7 2017

...SIGNIFICANT WEATHER ADVISORY FOR TOOMBS COUNTY UNTIL 700 PM EDT...

At 628 PM EDT...a strong thunderstorm was over Toombs Central, or 9
miles south of Lyons...moving northeast at 30 mph.

  HAZARD...Up to 40 mph wind...pea sized hail and frequent cloud to 
           ground lightning. 

  IMPACT...Expect minor damage to tree limbs and blowing around of 
           light...unsecured objects. 

Some locations in the path of this storm include
Lyons, Vidalia, Santa Claus, Center, Toombs Central, Ohoopee, New
Branch, Ponderosa, South Thompson, English Eddy, Rock Springs, Cedar
Crossing and Johnson Corner.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

People outdoors should seek shelter immediately. If you can hear
thunder...you are close enough to be struck by lightning.

LAT...LON 3194 8228 3193 8230 3195 8231 3193 8231
      3194 8238 3195 8238 3196 8241 3195 8240
      3196 8242 3228 8240 3230 8236 3229 8235
      3229 8228 3232 8224 3217 8218 3214 8220
      3191 8223
TIME...MOT...LOC 2228Z 229DEG 24KT 3207 8233 

HAIL...0.25IN
WIND...40MPH

$$

The office that day

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

Issued	Product	Office	Counties	Lasted
Aug 6, 8:00 PM EDT	Special Weather Statement	FFC	Cobb, Fulton	45 min
Aug 6, 8:02 PM EDT	Special Weather Statement	FFC	Henry, Spalding	43 min
Aug 6, 8:11 PM EDT	Special Weather Statement	FFC	Bartow, Floyd	49 min
Aug 6, 8:30 PM EDT	Special Weather Statement	FFC	Troup	45 min
Aug 6, 8:37 PM EDT	Special Weather Statement	FFC	Cherokee, Forsyth	23 min
Aug 6, 9:04 PM EDT	Special Weather Statement	FFC	Cherokee, Dawson, Forsyth, Pickens	41 min
Aug 6, 9:17 PM EDT	Special Weather Statement	FFC	Clayton, Coweta, Fayette	43 min
Aug 6, 10:47 PM EDT	Special Weather Statement	FFC	Jasper, Morgan, Putnam	43 min
Aug 6, 11:19 PM EDT	Special Weather Statement	FFC	Clarke, Greene, Madison, Morgan, Oconee, Oglethorpe and 1 more	56 min
Aug 7, 2:38 PM EDT	Special Weather Statement	FFC	Upson	37 min
Aug 7, 3:13 PM EDT	Special Weather Statement	FFC	Marion, Taylor	32 min
Aug 7, 3:38 PM EDT	Special Weather Statement	FFC	Talbot	37 min
Aug 7, 3:42 PM EDT	Special Weather Statement	FFC	Taylor	33 min
Aug 7, 4:17 PM EDT	Special Weather Statement	FFC	Harris	28 min
Aug 7, 5:31 PM EDT	Special Weather Statement	FFC	Gilmer, Murray	29 min
Aug 7, 5:39 PM EDT	Special Weather Statement	FFC	Emanuel	36 min
Aug 7, 5:41 PM EDT	Special Weather Statement	FFC	Montgomery, Wheeler	34 min
Aug 7, 6:54 PM EDT	Special Weather Statement	FFC	Gilmer	36 min
Aug 7, 7:27 PM EDT	Special Weather Statement	FFC	Pickens	33 min

Nearby

Special Weather Statements in Georgia, 2017 Every special weather statement in 2017

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.