Alert archive / Georgia / Severe Thunderstorm Warnings in 2017

Severe Thunderstorm Warning 162, NWS Atlanta, GA

April 23, 20174 counties in Georgia

NWS Atlanta, GA issued this severe thunderstorm warning at Apr 23, 2017, 5:29 PM EDT for 4 counties in Georgia. It was in force for 31 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: Apr 23, 2017, 5:29 PM EDT (21:29 UTC)
Expired: Apr 23, 2017, 6:00 PM EDT
In force: 31 min
Issued by: NWS Atlanta, GA
Area: Storm-based polygon
Hail: 1.0 in
Wind: 60.0 mph

Counties Bleckley County, GA, Houston County, GA, Peach County, GA, Twiggs County, GA

The radar

The Robins AFB radar (KJGX), 37 km from the middle of the area, began a volume at 21:29 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.

What was reported inside it

Time	Report	Where	Remark
Apr 23, 5:29 PM EDT	TSTM WND DMG	1 E Perry, GA	TREE BLOWN OVER ONTO A HOUSE

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, 9.5 hours before the alert went out and 129 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: 60 J/kg
Mixed-layer CIN: -75 J/kg
Mixed-layer LCL: 772 m above ground
0-6 km bulk shear: 30 kt
0-1 km storm-relative helicity: 75 m²/s²
0-3 km storm-relative helicity: 117 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

The text

As transmitted.

667 
WUUS52 KFFC 232129
SVRFFC
GAC023-153-225-289-232200-
/O.NEW.KFFC.SV.W.0162.170423T2129Z-170423T2200Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Peachtree City GA
529 PM EDT SUN APR 23 2017

The National Weather Service in Peachtree City has issued a

* Severe Thunderstorm Warning for...
  Southwestern Twiggs County in central Georgia...
  West central Bleckley County in central Georgia...
  Southeastern Peach County in central Georgia...
  Central Houston County in central Georgia...

* Until 600 PM EDT

* At 528 PM EDT, a severe thunderstorm was located over Perry, moving
  northeast at 35 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...
  Perry, Warner Robins, Robins Air Force Base, Tarversville,
  Meadowdale, Sand Bed, Bullard, Houston Lake, Grove Park, Magnolia,
  Royal, Moss Oak, Bonaire, Kathleen, Clinchfield and Hayneville.

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 3235 8378 3249 8385 3266 8349 3244 8335
TIME...MOT...LOC 2128Z 247DEG 30KT 3245 8370 

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

1 follow-up statement

314 
WWUS52 KFFC 232144
SVSFFC

Severe Weather Statement
National Weather Service Peachtree City GA
544 PM EDT SUN APR 23 2017

GAC225-232153-
/O.CAN.KFFC.SV.W.0162.000000T0000Z-170423T2200Z/
Peach GA-
544 PM EDT SUN APR 23 2017

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

LAT...LON 3252 8373 3252 8372 3255 8372 3266 8349
      3244 8335 3238 8365
TIME...MOT...LOC 2143Z 247DEG 30KT 3250 8356 

$$

GAC023-153-289-232200-
/O.CON.KFFC.SV.W.0162.000000T0000Z-170423T2200Z/
Twiggs GA-Bleckley GA-Houston GA-
544 PM EDT SUN APR 23 2017

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 600 PM EDT
FOR SOUTHWESTERN TWIGGS...WEST CENTRAL BLECKLEY AND NORTHEASTERN
HOUSTON COUNTIES...

At 543 PM EDT, a severe thunderstorm was located near Kathleen, or 10
miles east of Perry, moving northeast at 35 mph.

HAZARD...60 mph wind gusts and nickel size hail. 

SOURCE...Radar indicated. 

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

Locations impacted include...
Perry, Warner Robins, Robins Air Force Base, Royal, Tarversville,
Sand Bed, Bullard, Houston Lake, Bonaire, Magnolia, Kathleen and
Clinchfield.

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 3252 8373 3252 8372 3255 8372 3266 8349
      3244 8335 3238 8365
TIME...MOT...LOC 2143Z 247DEG 30KT 3250 8356 

HAIL...0.88IN
WIND...60MPH
 
$$

The office that day

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

Issued	Product	Office	Counties	Lasted
Apr 22, 8:03 PM EDT	Special Weather Statement	FFC	Walker	27 min
Apr 23, 6:00 AM EDT	Special Weather Statement	FFC	Henry, Rockdale, Walton	45 min
Apr 23, 6:45 AM EDT	Special Weather Statement	FFC	Barrow, Clarke, Madison, Oconee, Rockdale, Walton	45 min
Apr 23, 11:31 AM EDT	River Flood Warning	FFC	Dade	30 hr
Apr 23, 2:29 PM EDT	Special Weather Statement	FFC	Morgan	31 min
Apr 23, 3:00 PM EDT	Special Weather Statement	FFC	Oconee	30 min
Apr 23, 4:04 PM EDT	Special Weather Statement	FFC	Rockdale, Walton	26 min
Apr 23, 4:15 PM EDT	Special Weather Statement	FFC	Jasper	30 min
Apr 23, 4:43 PM EDT	Special Weather Statement	FFC	Jasper	32 min
Apr 23, 4:45 PM EDT	Special Weather Statement	FFC	Macon	30 min
Apr 23, 5:07 PM EDT	Severe Thunderstorm Warning	FFC	Houston, Macon, Peach	23 min
Apr 23, 5:22 PM EDT	Special Weather Statement	FFC	Jones	23 min
Apr 23, 5:30 PM EDT	Flash Flood Warning	FFC	Gwinnett	4 hr
Apr 23, 5:48 PM EDT	Flash Flood Warning	FFC	Newton, Rockdale, Walton	4 hr
Apr 23, 5:59 PM EDT	Special Weather Statement	FFC	Twiggs	31 min
Apr 23, 6:14 PM EDT	Severe Thunderstorm Warning	FFC	Twiggs, Wilkinson	31 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; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.