Alert archive / Georgia / Severe Thunderstorm Warnings in 2017

Severe Thunderstorm Warning 241, NWS Atlanta, GA

June 22, 20176 counties in Georgia

NWS Atlanta, GA issued this severe thunderstorm warning at Jun 22, 2017, 8:13 PM EDT for 6 counties in Georgia. It was in force for 47 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: Jun 22, 2017, 8:13 PM EDT (00:13 UTC)
Expired: Jun 22, 2017, 9:00 PM EDT
In force: 47 min
Issued by: NWS Atlanta, GA
Area: Storm-based polygon
Tornado: Possible
Hail: 0.75 in
Wind: 60.0 mph

Counties Greene County, GA, Morgan County, GA, Newton County, GA, Oconee County, GA, Putnam County, GA, Walton County, GA

The radar

The Robins AFB radar (KJGX), 90 km from the middle of the area, began a volume at 00:17 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 22, 8:30 PM EDT	TSTM WND DMG	3 Ene Godfrey, GA	TREE DOWN AT THE INTERSECTION OF PIERCE DAIRY ROAD AND 7 ISLAND ROAD.

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, 0.2 hours before the alert went out and 91 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: 279 J/kg
Mixed-layer CIN: -39 J/kg
Mixed-layer LCL: 870 m above ground
0-6 km bulk shear: 20 kt
0-1 km storm-relative helicity: 159 m²/s²
0-3 km storm-relative helicity: 201 m²/s²
Significant tornado parameter: 0.1
Supercell composite: 0.6

Open this sounding in Storm Lab

The text

As transmitted.

374 
WUUS52 KFFC 230013
SVRFFC
GAC133-211-217-219-237-297-230100-
/O.NEW.KFFC.SV.W.0241.170623T0013Z-170623T0100Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Peachtree City GA
813 PM EDT THU JUN 22 2017

The National Weather Service in Peachtree City has issued a

* Severe Thunderstorm Warning for...
  South central Oconee County in northeastern Georgia...
  Morgan County in north central Georgia...
  Northwestern Putnam County in central Georgia...
  Southeastern Walton County in north central Georgia...
  Northwestern Greene County in east central Georgia...
  Northeastern Newton County in north central Georgia...

* Until 900 PM EDT

* At 813 PM EDT, severe thunderstorms were located along a line
  extending from Oxford to near Godfrey to near Adgateville, moving
  northeast at 25 mph.

  HAZARD...60 mph wind gusts. 

  SOURCE...Radar indicated. 

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

* Locations impacted include...
  Covington, Eatonton, Madison, Social Circle, Rutledge, Bostwick,
  Good Hope, Buckhead, Phoenix, Ebenezer, Harmony, Wrayswood,
  Godfrey, Hard Labor Creek State Park, Greshamville, Brick Store,
  Pannell, Willard, Rock Eagle 4-H Center and Central Georgia
  Experiment Stn.

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 3323 8354 3339 8354 3343 8353 3344 8355
      3345 8355 3364 8386 3385 8360 3370 8330
      3339 8326
TIME...MOT...LOC 0013Z 220DEG 24KT 3362 8385 3349 8354 3325 8363 

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

The office that day

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

Issued	Product	Office	Counties	Lasted
Jun 22, 8:06 PM EDT	Special Weather Statement	FFC	Forsyth, Gwinnett, Walton	39 min
Jun 22, 8:47 PM EDT	Severe Thunderstorm Warning	FFC	Clarke, Greene, Jackson, Madison, Oconee, Oglethorpe and 1 more	43 min
Jun 22, 9:17 PM EDT	Special Weather Statement	FFC	Hancock	28 min
Jun 22, 9:29 PM EDT	Special Weather Statement	FFC	Clarke, Madison, Oglethorpe	31 min
Jun 22, 9:44 PM EDT	Special Weather Statement	FFC	Greene, Taliaferro, Wilkes	31 min
Jun 22, 9:45 PM EDT	Special Weather Statement	FFC	Greene, Taliaferro, Wilkes	30 min
Jun 23, 3:59 AM EDT	Flash Flood Watch	FFC	Banks, Barrow, Bartow, Carroll, Catoosa, Chattooga and 38 more	35 hr
Jun 23, 4:36 PM EDT	Special Weather Statement	FFC	Chattooga, Dade, Walker	39 min
Jun 23, 5:13 PM EDT	Special Weather Statement	FFC	Chattooga, Floyd, Gordon, Polk, Walker, Whitfield	47 min
Jun 23, 5:27 PM EDT	Severe Thunderstorm Warning	FFC	Bartow, Chattooga, Floyd, Gordon, Polk	48 min
Jun 23, 6:08 PM EDT	Severe Thunderstorm Warning	FFC	Haralson, Polk	52 min
Jun 23, 6:11 PM EDT	Severe Thunderstorm Warning	FFC	Bartow, Cherokee, Gilmer, Gordon, Murray, Pickens	34 min
Jun 23, 6:45 PM EDT	Severe Thunderstorm Warning	FFC	Bartow, Cherokee, Cobb, Haralson, Paulding, Polk	45 min
Jun 23, 6:51 PM EDT	Special Weather Statement	FFC	Dawson, Pickens	39 min
Jun 23, 7:00 PM EDT	Special Weather Statement	FFC	Carroll, Haralson	45 min
Jun 23, 7:26 PM EDT	Severe Thunderstorm Warning	FFC	Cherokee, Cobb, Forsyth, Fulton	49 min
Jun 23, 7:39 PM EDT	Special Weather Statement	FFC	Lumpkin, White	51 min
Jun 23, 7:40 PM EDT	Special Weather Statement	FFC	Carroll, Heard	50 min
Jun 23, 7:55 PM EDT	Severe Thunderstorm Warning	FFC	Carroll, Coweta, Douglas, Fulton, Heard	50 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.