Alert archive / Georgia / Severe Thunderstorm Warnings in 2017

Severe Thunderstorm Warning 237, NWS Atlanta, GA

June 15, 2017Houston County, Twiggs County, Georgia

NWS Atlanta, GA issued this severe thunderstorm warning at Jun 15, 2017, 9:37 PM EDT for Houston County, Twiggs County, Georgia. It was in force for 33 min. 3 reports 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 15, 2017, 9:37 PM EDT (01:37 UTC)
Expired: Jun 15, 2017, 10:10 PM EDT
In force: 33 min
Issued by: NWS Atlanta, GA
Area: Storm-based polygon
Hail: 0.75 in
Wind: 60.0 mph

Counties Houston County, GA, Twiggs County, GA

The radar

The Robins AFB radar (KJGX), 19 km from the middle of the area, began a volume at 01:39 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 15, 9:42 PM EDT	TSTM WND DMG	River West, GA	A TREE WAS REPORTED DOWN NEAR THE INTERSECTION OF CHATOOGA WAY AND HIWASSEE DRIVE.
Jun 15, 9:55 PM EDT	TSTM WND DMG	2 Ne District Path, GA	LARGE TREE ON ROAD NEAR MISSLE BASE RD AND HAMLIN-FLOYD RD
Jun 15, 9:56 PM EDT	TSTM WND DMG	2 Nne District Path, GA	TWO TREES ON US HWY 80 NEAR TURKEY CREEK BRIDGE

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 00:00Z, 1.6 hours before the alert went out and 132 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: 1 J/kg
Mixed-layer CIN: No buoyant parcel
Mixed-layer LCL: 1575 m above ground
0-6 km bulk shear: 19 kt
0-1 km storm-relative helicity: -88 m²/s²
0-3 km storm-relative helicity: -22 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

The text

As transmitted.

494 
WUUS52 KFFC 160137
SVRFFC
GAC153-289-160230-
/O.NEW.KFFC.SV.W.0237.170616T0137Z-170616T0230Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Peachtree City GA
937 PM EDT THU JUN 15 2017

The National Weather Service in Peachtree City has issued a

* Severe Thunderstorm Warning for...
  Twiggs County in central Georgia...
  Northeastern Houston County in central Georgia...

* Until 1030 PM EDT

* At 937 PM EDT, a severe thunderstorm was located over Bonaire, or
  12 miles northeast of Perry, moving northeast at 30 mph.

  HAZARD...60 mph wind gusts. 

  SOURCE...Radar indicated. 

  IMPACT...Expect damage to roofs, siding, and trees. 

* Locations impacted include...
  Jeffersonville, Warner Robins, Robins Air Force Base, Marion,
  Tarversville, Bullard, Fitzpatrick, Ripley, Huber, District Path,
  Myricks Mill, Bonaire and Kathleen.

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 3242 8353 3254 8372 3287 8339 3263 8325
      3246 8348 3246 8349
TIME...MOT...LOC 0137Z 223DEG 25KT 3254 8355 

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

1 follow-up statement

852 
WWUS52 KFFC 160210
SVSFFC

Severe Weather Statement
National Weather Service Peachtree City GA
1010 PM EDT THU JUN 15 2017

GAC153-289-160220-
/O.CAN.KFFC.SV.W.0237.000000T0000Z-170616T0230Z/
Twiggs GA-Houston GA-
1010 PM EDT THU JUN 15 2017

...THE SEVERE THUNDERSTORM WARNING FOR TWIGGS AND NORTHEASTERN
HOUSTON COUNTIES IS CANCELLED...
                
The storm which prompted the warning has weakened below severe
limits, and no longer poses an immediate threat to life or property.
Therefore the warning has been cancelled.  However gusty winds are
still possible with this thunderstorm.

LAT...LON 3242 8353 3254 8372 3287 8339 3263 8325
      3246 8348 3246 8349
TIME...MOT...LOC 0209Z 223DEG 25KT 3271 8336 

$$

The office that day

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

Issued	Product	Office	Counties	Lasted
Jun 15, 8:15 PM EDT	Special Weather Statement	FFC	Dooly	30 min
Jun 15, 8:16 PM EDT	Special Weather Statement	FFC	Montgomery, Toombs	29 min
Jun 15, 8:22 PM EDT	Special Weather Statement	FFC	Putnam	23 min
Jun 15, 8:38 PM EDT	Severe Thunderstorm Warning	FFC	Dooly, Houston, Macon	37 min
Jun 15, 8:41 PM EDT	Special Weather Statement	FFC	Sumter	64 min
Jun 15, 9:04 PM EDT	Severe Thunderstorm Warning	FFC	Houston	41 min
Jun 15, 9:05 PM EDT	Special Weather Statement	FFC	Peach	25 min
Jun 15, 9:08 PM EDT	Severe Thunderstorm Warning	FFC	Glascock, Jefferson, Washington	52 min
Jun 15, 9:36 PM EDT	Special Weather Statement	FFC	Twiggs	24 min
Jun 15, 10:10 PM EDT	Special Weather Statement	FFC	Wilkinson	35 min
Jun 15, 10:37 PM EDT	Special Weather Statement	FFC	Washington	23 min
Jun 15, 11:12 PM EDT	Special Weather Statement	FFC	Jefferson	33 min
Jun 16, 2:20 AM EDT	Dense Fog Advisory	FFC	Banks, Barrow, Bartow, Catoosa, Chattooga, Cherokee and 21 more	7 hr

Nearby

Severe Thunderstorm Warnings in Georgia, 2017 Every severe thunderstorm warning 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; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.