Alert archive / Georgia / Severe Thunderstorm Warnings in 2016

Severe Thunderstorm Warning 228, NWS Atlanta, GA

July 21, 2016Wilkes County, Georgia

NWS Atlanta, GA issued this severe thunderstorm warning at Jul 21, 2016, 3:04 PM EDT for Wilkes County, Georgia. It was in force for 41 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: Jul 21, 2016, 3:04 PM EDT (19:04 UTC)
Expired: Jul 21, 2016, 3:45 PM EDT
In force: 41 min
Issued by: NWS Atlanta, GA
Area: Storm-based polygon
Hail: 1.0 in
Wind: 60.0 mph

County Wilkes County, GA

The radar

The Robins AFB radar (KJGX), 133 km from the middle of the area, began a volume at 19:04 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
Jul 21, 3:10 PM EDT	TSTM WND DMG	Washington, GA	911 CALL CENTER RECEIVED NUMEROUS REPORTS OF TREES DOWN...MAINLY NEAR WASHINGTON. LOCATIONS INCLUDE ONE TREE ON HWY 44...ONE ON HWY 47...ONE ON OAK ST...AND ONE TREE ON HOUSE ON LINCOLNTON RD

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, 7.1 hours before the alert went out and 178 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: 1259 J/kg
Mixed-layer CIN: -79 J/kg
Mixed-layer LCL: 1185 m above ground
0-6 km bulk shear: 8 kt
0-1 km storm-relative helicity: -8 m²/s²
0-3 km storm-relative helicity: 24 m²/s²
Significant tornado parameter: 0.0
Supercell composite: -0.2

Open this sounding in Storm Lab

The text

As transmitted.

956 
WUUS52 KFFC 211904
SVRFFC
GAC317-211945-
/O.NEW.KFFC.SV.W.0228.160721T1904Z-160721T1945Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE PEACHTREE CITY GA
304 PM EDT THU JUL 21 2016

THE NATIONAL WEATHER SERVICE IN PEACHTREE CITY HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  CENTRAL WILKES COUNTY IN EAST CENTRAL GEORGIA...

* UNTIL 345 PM EDT

* AT 304 PM EDT...A SEVERE THUNDERSTORM WAS LOCATED OVER TIGNALL...OR
  NEAR WASHINGTON...MOVING SOUTH AT 10 MPH.

  HAZARD...60 MPH WIND GUSTS AND QUARTER SIZE HAIL. 

  SOURCE...RADAR INDICATED. 

  IMPACT...HAIL DAMAGE TO VEHICLES IS EXPECTED. EXPECT WIND DAMAGE 
           TO ROOFS...SIDING...AND TREES. 

* OTHER LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO
  WASHINGTON...TIGNALL...NEWTOWN...HOLLIDAY
  PARK...METASVILLE...LUNDBERG... AONIA...FLORAL
  HILL...MALLORYSVILLE...ROCKY CREEK FIRE DEPT....DELHI AND DANBURG.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

FOR YOUR PROTECTION MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR OF A
BUILDING.

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 3366 8251 3364 8256 3365 8258 3363 8258
      3364 8259 3363 8262 3362 8262 3361 8265
      3360 8265 3360 8269 3362 8269 3362 8271
      3374 8281 3389 8284 3392 8263 3386 8261
      3387 8258 3387 8257 3383 8260 3364 8248
TIME...MOT...LOC 1904Z 348DEG 10KT 3384 8272 

HAIL...1.00IN
WIND...60MPH
 
$$

The office that day

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

Issued	Product	Office	Counties	Lasted
Jul 20, 9:30 PM EDT	Special Weather Statement	FFC	Taliaferro	30 min
Jul 20, 9:43 PM EDT	Special Weather Statement	FFC	DeKalb	32 min
Jul 20, 10:19 PM EDT	Special Weather Statement	FFC	DeKalb	26 min
Jul 20, 10:34 PM EDT	Special Weather Statement	FFC	Taliaferro	56 min
Jul 20, 10:51 PM EDT	Flash Flood Warning	FFC	Taliaferro, Wilkes	6 hr
Jul 20, 11:22 PM EDT	Special Weather Statement	FFC	Wilkes	23 min
Jul 20, 11:43 PM EDT	Special Weather Statement	FFC	Wilkes	32 min
Jul 21, 1:59 PM EDT	Special Weather Statement	FFC	Coweta	31 min
Jul 21, 2:03 PM EDT	Severe Thunderstorm Warning	FFC	Carroll, Coweta, Heard	42 min
Jul 21, 2:08 PM EDT	Severe Thunderstorm Warning	FFC	Bibb, Crawford, Houston, Peach	31 min
Jul 21, 2:18 PM EDT	Special Weather Statement	FFC	Lumpkin, White	42 min
Jul 21, 2:41 PM EDT	Special Weather Statement	FFC	Wilkes	34 min
Jul 21, 2:51 PM EDT	Severe Thunderstorm Warning	FFC	Dawson, Fannin, Gilmer, Lumpkin, Pickens, Union	39 min
Jul 21, 2:51 PM EDT	Severe Thunderstorm Warning	FFC	Carroll, Douglas, Fulton	39 min
Jul 21, 3:02 PM EDT	Severe Thunderstorm Warning	FFC	Greene, Oglethorpe, Taliaferro, Wilkes	43 min
Jul 21, 3:32 PM EDT	Special Weather Statement	FFC	Douglas	28 min
Jul 21, 3:36 PM EDT	Special Weather Statement	FFC	Dawson	54 min
Jul 21, 3:39 PM EDT	Severe Thunderstorm Warning	FFC	Cherokee, Forsyth, Pickens	51 min
Jul 21, 3:40 PM EDT	Special Weather Statement	FFC	Bartow	35 min
Jul 21, 3:44 PM EDT	Severe Thunderstorm Warning	FFC	Taliaferro, Warren, Wilkes	46 min
Jul 21, 3:59 PM EDT	Special Weather Statement	FFC	Gwinnett	31 min
Jul 21, 4:03 PM EDT	Severe Thunderstorm Warning	FFC	Gwinnett, Walton	42 min
Jul 21, 4:09 PM EDT	Special Weather Statement	FFC	Clarke	36 min
Jul 21, 4:21 PM EDT	Special Weather Statement	FFC	Forsyth	24 min
Jul 21, 4:26 PM EDT	Special Weather Statement	FFC	Bartow	34 min
Jul 21, 4:28 PM EDT	Severe Thunderstorm Warning	FFC	DeKalb, Fulton, Gwinnett	47 min
Jul 21, 4:34 PM EDT	Severe Thunderstorm Warning	FFC	Gilmer, Gordon, Murray, Pickens	41 min
Jul 21, 4:38 PM EDT	Severe Thunderstorm Warning	FFC	Bartow, Paulding, Polk	52 min
Jul 21, 4:41 PM EDT	Severe Thunderstorm Warning	FFC	DeKalb, Fulton	49 min
Jul 21, 4:43 PM EDT	Severe Thunderstorm Warning	FFC	Chattahoochee, Muscogee	47 min
Jul 21, 4:49 PM EDT	Severe Thunderstorm Warning	FFC	Clayton, Henry, Spalding	41 min
Jul 21, 5:04 PM EDT	Special Weather Statement	FFC	Newton, Rockdale	26 min
Jul 21, 5:10 PM EDT	Special Weather Statement	FFC	Bibb, Twiggs	35 min
Jul 21, 5:12 PM EDT	Special Weather Statement	FFC	Dodge	33 min
Jul 21, 5:14 PM EDT	Special Weather Statement	FFC	Stewart	31 min
Jul 21, 5:18 PM EDT	Special Weather Statement	FFC	Floyd	27 min
Jul 21, 5:21 PM EDT	Special Weather Statement	FFC	Bleckley	24 min
Jul 21, 5:32 PM EDT	Special Weather Statement	FFC	DeKalb, Gwinnett	58 min
Jul 21, 5:35 PM EDT	Severe Thunderstorm Warning	FFC	Houston, Peach	40 min
Jul 21, 5:36 PM EDT	Special Weather Statement	FFC	Henry	24 min
Jul 21, 5:45 PM EDT	Severe Thunderstorm Warning	FFC	Chattahoochee, Harris, Marion, Muscogee, Talbot	45 min
Jul 21, 5:50 PM EDT	Special Weather Statement	FFC	Twiggs	25 min
Jul 21, 5:50 PM EDT	Severe Thunderstorm Warning	FFC	Morgan, Newton, Walton	40 min
Jul 21, 5:58 PM EDT	Severe Thunderstorm Warning	FFC	Barrow, Jackson, Oconee, Walton	47 min
Jul 21, 6:11 PM EDT	Special Weather Statement	FFC	Chattahoochee, Muscogee	34 min
Jul 21, 6:14 PM EDT	Special Weather Statement	FFC	Pulaski	31 min
Jul 21, 6:24 PM EDT	Special Weather Statement	FFC	Laurens	36 min
Jul 21, 6:26 PM EDT	Special Weather Statement	FFC	Montgomery, Treutlen	34 min
Jul 21, 6:32 PM EDT	Special Weather Statement	FFC	Marion, Schley, Taylor	28 min
Jul 21, 6:38 PM EDT	Special Weather Statement	FFC	Bibb	52 min
Jul 21, 6:45 PM EDT	Severe Thunderstorm Warning	FFC	Jasper, Jones	45 min
Jul 21, 7:18 PM EDT	Special Weather Statement	FFC	Johnson	27 min

Nearby

Severe Thunderstorm Warnings in Georgia, 2016 Every severe thunderstorm warning 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; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.