Alert archive / Georgia / Severe Thunderstorm Warnings in 2016

Severe Thunderstorm Warning 158, NWS Atlanta, GA

July 5, 2016Walton County, Georgia

NWS Atlanta, GA issued this severe thunderstorm warning at Jul 5, 2016, 2:48 PM EDT for Walton County, Georgia. It was in force for 27 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 5, 2016, 2:48 PM EDT (18:48 UTC)
Expired: Jul 5, 2016, 3:15 PM EDT
In force: 27 min
Issued by: NWS Atlanta, GA
Area: Storm-based polygon
Hail: 0.75 in
Wind: 60.0 mph

County Walton County, GA

The radar

The Atlanta radar (KFFC), 93 km from the middle of the area, began a volume at 18:50 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 5, 3:00 PM EDT	TSTM WND DMG	1 Nw Monroe, GA	A TREE WAS BLOWN DOWN ON HIGHWAY 11.

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, 6.8 hours before the alert went out and 88 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: 1207 J/kg
Mixed-layer CIN: -20 J/kg
Mixed-layer LCL: 701 m above ground
0-6 km bulk shear: 13 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.

476 
WUUS52 KFFC 051848
SVRFFC
GAC297-051915-
/O.NEW.KFFC.SV.W.0158.160705T1848Z-160705T1915Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE PEACHTREE CITY GA
248 PM EDT TUE JUL 5 2016

THE NATIONAL WEATHER SERVICE IN PEACHTREE CITY HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  NORTHWESTERN WALTON COUNTY IN NORTH CENTRAL GEORGIA...

* UNTIL 315 PM EDT

* AT 248 PM EDT...A SEVERE THUNDERSTORM WAS LOCATED OVER
  LOGANVILLE... OR 9 MILES SOUTHEAST OF LAWRENCEVILLE...MOVING EAST
  AT 30 MPH.

  HAZARD...60 MPH WIND GUSTS. 

  SOURCE...RADAR INDICATED. 

  IMPACT...EXPECT DAMAGE TO ROOFS...SIDING...AND TREES. 

* OTHER LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO
  MONROE...LOGANVILLE...BETWEEN...NICHOLASVILLE...GRATIS...BOLD
  SPRINGS... CAMPTON AND WINDSOR.

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 3388 8363 3379 8369 3380 8394 3382 8394
      3389 8385 3391 8377 3389 8376 3390 8374
      3390 8373 3391 8370
TIME...MOT...LOC 1848Z 261DEG 28KT 3384 8389 

HAIL...<.75IN
WIND...60MPH
 
$$

1 follow-up statement

173 
WWUS52 KFFC 051911
SVSFFC

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE PEACHTREE CITY GA
311 PM EDT TUE JUL 5 2016

GAC297-051921-
/O.EXP.KFFC.SV.W.0158.000000T0000Z-160705T1915Z/
WALTON GA-
311 PM EDT TUE JUL 5 2016

...THE SEVERE THUNDERSTORM WARNING FOR NORTHWESTERN WALTON COUNTY
WILL EXPIRE AT 315 PM EDT...
                
THE STORM WHICH PROMPTED THE WARNING HAS WEAKENED BELOW SEVERE
LIMITS...AND NO LONGER POSE AN IMMEDIATE THREAT TO LIFE OR PROPERTY.
THEREFORE THE WARNING WILL BE ALLOWED TO EXPIRE.

LAT...LON 3388 8363 3379 8369 3380 8394 3382 8394
      3389 8385 3391 8377 3389 8376 3390 8374
      3390 8373 3391 8370
TIME...MOT...LOC 1909Z 261DEG 28KT 3384 8389 

$$

The office that day

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

Issued	Product	Office	Counties	Lasted
Jul 5, 3:21 AM EDT	Heat Advisory	FFC	Baldwin, Bibb, Bleckley, Crawford, Crisp, Dodge and 28 more	15 hr
Jul 5, 11:33 AM EDT	Special Weather Statement	FFC	Cherokee, Cobb, Forsyth, Hall	27 min
Jul 5, 12:42 PM EDT	Special Weather Statement	FFC	Carroll, Haralson, Polk	33 min
Jul 5, 1:31 PM EDT	Special Weather Statement	FFC	Douglas, Fulton	29 min
Jul 5, 2:02 PM EDT	Special Weather Statement	FFC	Muscogee	28 min
Jul 5, 2:03 PM EDT	Special Weather Statement	FFC	DeKalb, Fulton	27 min
Jul 5, 2:32 PM EDT	Special Weather Statement	FFC	Gwinnett	28 min
Jul 5, 2:40 PM EDT	Special Weather Statement	FFC	Lamar, Spalding	20 min
Jul 5, 2:56 PM EDT	Special Weather Statement	FFC	Butts, Monroe	34 min
Jul 5, 3:09 PM EDT	Special Weather Statement	FFC	Jasper	36 min
Jul 5, 3:25 PM EDT	Special Weather Statement	FFC	Putnam	35 min
Jul 5, 3:40 PM EDT	Special Weather Statement	FFC	Baldwin, Greene	20 min
Jul 5, 3:44 PM EDT	Special Weather Statement	FFC	Bibb	31 min
Jul 5, 4:05 PM EDT	Special Weather Statement	FFC	Hancock, Taliaferro	25 min
Jul 5, 4:08 PM EDT	Special Weather Statement	FFC	Baldwin, Wilkinson	37 min
Jul 5, 4:28 PM EDT	Special Weather Statement	FFC	Glascock, Jefferson	32 min
Jul 5, 4:49 PM EDT	Special Weather Statement	FFC	Johnson	26 min
Jul 5, 5:47 PM EDT	Special Weather Statement	FFC	Emanuel	28 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.