Alert archive / Georgia / Severe Thunderstorm Warnings in 2017

Severe Thunderstorm Warning 233, NWS Atlanta, GA

June 15, 20174 counties in Georgia

NWS Atlanta, GA issued this severe thunderstorm warning at Jun 15, 2017, 7:07 PM EDT for 4 counties in Georgia. It was in force for 53 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: Jun 15, 2017, 7:07 PM EDT (23:07 UTC)
Expired: Jun 15, 2017, 8:00 PM EDT
In force: 53 min
Issued by: NWS Atlanta, GA
Area: Storm-based polygon
Hail: 1.0 in
Wind: 60.0 mph

Counties Lamar County, GA, Meriwether County, GA, Pike County, GA, Spalding County, GA

The radar

The Atlanta radar (KFFC), 30 km from the middle of the area, began a volume at 23:11 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 watch it was issued in

The SPC watch in force over the same counties when this warning went out.

Issued	Product	Office	Lasted
Jun 15, 5:43 PM EDT	Severe Thunderstorm Watch	SPC	3 hr

The nearest sounding before it

Peachtre/Fal Fld, GA (KFFC), launched 12:00Z, 11.1 hours before the alert went out and 28 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: 315 J/kg
Mixed-layer CIN: -96 J/kg
Mixed-layer LCL: 1056 m above ground
0-6 km bulk shear: 1 kt
0-1 km storm-relative helicity: -1 m²/s²
0-3 km storm-relative helicity: 51 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

The text

As transmitted.

413 
WUUS52 KFFC 152307
SVRFFC
GAC171-199-231-255-160000-
/O.NEW.KFFC.SV.W.0233.170615T2307Z-170616T0000Z/

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

The National Weather Service in Peachtree City has issued a

* Severe Thunderstorm Warning for...
  Western Spalding County in west central Georgia...
  Northeastern Meriwether County in west central Georgia...
  Pike County in west central Georgia...
  Northwestern Lamar County in west central Georgia...

* Until 800 PM EDT

* At 707 PM EDT, a severe thunderstorm was located near Hollonville,
  or 10 miles west of Zebulon, moving east at 15 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. 

* Locations impacted include...
  Griffin, Zebulon, Milner, Molena, Williamson, Orchard Hill, Gay,
  Highland Mills, Experiment, Hilltop, Hollonville, Alvaton, Rover,
  Zetella and Vaughn.

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 3300 8452 3316 8461 3333 8430 3312 8417
TIME...MOT...LOC 2307Z 254DEG 11KT 3315 8451 

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

1 follow-up statement

921 
WWUS52 KFFC 152333
SVSFFC

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

GAC199-152343-
/O.CAN.KFFC.SV.W.0233.000000T0000Z-170616T0000Z/
Meriwether GA-
733 PM EDT THU JUN 15 2017

...THE SEVERE THUNDERSTORM WARNING FOR NORTHEASTERN MERIWETHER COUNTY
IS CANCELLED...
    
The severe thunderstorm which prompted the warning has moved out of 
the warned area. Therefore, the warning has been cancelled.

A severe thunderstorm watch remains in effect until 1100 PM EDT for
west central Georgia.

LAT...LON 3306 8452 3308 8453 3308 8451 3310 8453
      3310 8452 3318 8451 3320 8449 3322 8450
      3333 8430 3312 8417 3300 8452 3304 8454
TIME...MOT...LOC 2333Z 254DEG 11KT 3317 8442 

$$

GAC171-231-255-160000-
/O.CON.KFFC.SV.W.0233.000000T0000Z-170616T0000Z/
Spalding GA-Pike GA-Lamar GA-
733 PM EDT THU JUN 15 2017

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 800 PM EDT
FOR WESTERN SPALDING...PIKE AND NORTHWESTERN LAMAR COUNTIES...

At 733 PM EDT, a severe thunderstorm was located over Hollonville, or
near Zebulon, moving east at 15 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. 

Locations impacted include...
Griffin, Zebulon, Milner, Molena, Williamson, Orchard Hill, Highland
Mills, Experiment, Hilltop, Hollonville, Rover, Zetella and Vaughn.

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 3306 8452 3308 8453 3308 8451 3310 8453
      3310 8452 3318 8451 3320 8449 3322 8450
      3333 8430 3312 8417 3300 8452 3304 8454
TIME...MOT...LOC 2333Z 254DEG 11KT 3317 8442 

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
Jun 14, 8:02 PM EDT	Special Weather Statement	FFC	Fulton	28 min
Jun 14, 8:12 PM EDT	Special Weather Statement	FFC	Cobb, Paulding	33 min
Jun 14, 8:41 PM EDT	Severe Thunderstorm Warning	FFC	Cobb, Paulding	36 min
Jun 14, 8:46 PM EDT	Special Weather Statement	FFC	Fulton	29 min
Jun 15, 3:13 PM EDT	Special Weather Statement	FFC	Whitfield	32 min
Jun 15, 3:29 PM EDT	Severe Thunderstorm Warning	FFC	Whitfield	31 min
Jun 15, 3:39 PM EDT	Special Weather Statement	FFC	Dade	36 min
Jun 15, 4:02 PM EDT	Severe Thunderstorm Warning	FFC	Murray, Whitfield	28 min
Jun 15, 4:07 PM EDT	Severe Thunderstorm Warning	FFC	Chattooga, Dade, Walker	38 min
Jun 15, 4:11 PM EDT	Special Weather Statement	FFC	Chattooga	34 min
Jun 15, 4:18 PM EDT	Severe Thunderstorm Warning	FFC	Chattooga, Floyd, Gordon	42 min
Jun 15, 4:33 PM EDT	Special Weather Statement	FFC	Gilmer, Gordon	27 min
Jun 15, 4:37 PM EDT	Special Weather Statement	FFC	Jasper	38 min
Jun 15, 4:48 PM EDT	Severe Thunderstorm Warning	FFC	Floyd, Polk	42 min
Jun 15, 4:59 PM EDT	Severe Thunderstorm Warning	FFC	Bartow, Floyd, Gordon	31 min
Jun 15, 5:21 PM EDT	Severe Thunderstorm Warning	FFC	Bartow, Haralson, Paulding, Polk	39 min
Jun 15, 5:23 PM EDT	Special Weather Statement	FFC	Gwinnett	37 min
Jun 15, 5:32 PM EDT	Severe Thunderstorm Warning	FFC	Gwinnett	28 min
Jun 15, 5:42 PM EDT	Special Weather Statement	FFC	DeKalb	33 min
Jun 15, 5:43 PM EDT	Special Weather Statement	FFC	Cherokee	32 min
Jun 15, 5:50 PM EDT	Severe Thunderstorm Warning	FFC	Carroll, Clayton, Cobb, Coweta, Douglas, Fayette and 4 more	40 min
Jun 15, 5:52 PM EDT	Severe Thunderstorm Warning	FFC	DeKalb, Henry, Rockdale	53 min
Jun 15, 5:55 PM EDT	Special Weather Statement	FFC	Oconee	35 min
Jun 15, 6:00 PM EDT	Special Weather Statement	FFC	Walton	30 min
Jun 15, 6:02 PM EDT	Special Weather Statement	FFC	Gwinnett	28 min
Jun 15, 6:13 PM EDT	Severe Thunderstorm Warning	FFC	Oglethorpe	47 min
Jun 15, 6:19 PM EDT	Severe Thunderstorm Warning	FFC	Barrow, Oconee, Walton	41 min
Jun 15, 6:20 PM EDT	Severe Thunderstorm Warning	FFC	Coweta, Fayette, Harris, Heard, Meriwether, Pike and 1 more	40 min
Jun 15, 6:23 PM EDT	Special Weather Statement	FFC	Newton	37 min
Jun 15, 6:30 PM EDT	Special Weather Statement	FFC	Hall	30 min
Jun 15, 6:45 PM EDT	Special Weather Statement	FFC	Talbot	30 min
Jun 15, 6:47 PM EDT	Special Weather Statement	FFC	DeKalb, Rockdale	28 min
Jun 15, 6:52 PM EDT	Severe Thunderstorm Warning	FFC	Meriwether, Pike, Upson	38 min
Jun 15, 7:00 PM EDT	Special Weather Statement	FFC	Oglethorpe	30 min
Jun 15, 7:01 PM EDT	Special Weather Statement	FFC	Harris, Lamar, Meriwether, Monroe, Muscogee, Pike and 3 more	44 min
Jun 15, 7:19 PM EDT	Special Weather Statement	FFC	Clarke, Madison	26 min
Jun 15, 7:39 PM EDT	Special Weather Statement	FFC	Chattahoochee, Muscogee	36 min
Jun 15, 7:50 PM EDT	Special Weather Statement	FFC	Sumter	25 min

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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.