Alert archive / Georgia / Severe Thunderstorm Warnings in 2017

Severe Thunderstorm Warning 308, NWS Atlanta, GA

July 26, 2017Greene County, Hancock County, Taliaferro County, Georgia

NWS Atlanta, GA issued this severe thunderstorm warning at Jul 26, 2017, 5:07 PM EDT for Greene County, Hancock County, Taliaferro County, Georgia. It was in force for 38 min. 2 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: Jul 26, 2017, 5:07 PM EDT (21:07 UTC)
Expired: Jul 26, 2017, 5:45 PM EDT
In force: 38 min
Issued by: NWS Atlanta, GA
Area: Storm-based polygon
Hail: 1.0 in
Wind: 60.0 mph

Counties Greene County, GA, Hancock County, GA, Taliaferro County, GA

The radar

The Robins AFB radar (KJGX), 86 km from the middle of the area, began a volume at 21:10 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 26, 5:07 PM EDT	TSTM WND DMG	3 Ene Siloam, GA	A TREE WAS REPORTED DOWN NEAR THE INTERSECTION OF BETHANY ROAD AND OLD BETHANY ROAD.
Jul 26, 5:36 PM EDT	TSTM WND DMG	3 Nw Reynolds Plantatio, GA	A TREE WAS REPORTED DOWN NEAR THE INTERSECTION OF VILLAGE MAIN STREET AND FOUNDERS ROW.

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, 9.1 hours before the alert went out and 124 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: 752 J/kg
Mixed-layer CIN: -74 J/kg
Mixed-layer LCL: 1155 m above ground
0-6 km bulk shear: 12 kt
0-1 km storm-relative helicity: 32 m²/s²
0-3 km storm-relative helicity: 42 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

The text

As transmitted.

725 
WUUS52 KFFC 262107
SVRFFC
GAC133-141-265-262145-
/O.NEW.KFFC.SV.W.0308.170726T2107Z-170726T2145Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Peachtree City GA
507 PM EDT WED JUL 26 2017

The National Weather Service in Peachtree City has issued a

* Severe Thunderstorm Warning for...
  Northwestern Hancock County in east central Georgia...
  Southeastern Greene County in east central Georgia...
  Southwestern Taliaferro County in east central Georgia...

* Until 545 PM EDT

* At 507 PM EDT, a severe thunderstorm was located over Siloam, or 8
  miles west of Crawfordville, moving southwest at 10 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...
  Greensboro, Union Point, White Plains, Siloam, Reynolds Plantation,
  Liberty and Veazey.

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 3332 8311 3336 8317 3337 8317 3339 8319
      3339 8321 3345 8326 3347 8328 3350 8328
      3363 8308 3352 8291
TIME...MOT...LOC 2107Z 042DEG 11KT 3354 8304 

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

1 follow-up statement

596 
WWUS52 KFFC 262138
SVSFFC

Severe Weather Statement
National Weather Service Peachtree City GA
538 PM EDT WED JUL 26 2017

GAC133-141-265-262148-
/O.EXP.KFFC.SV.W.0308.000000T0000Z-170726T2145Z/
Hancock GA-Greene GA-Taliaferro GA-
538 PM EDT WED JUL 26 2017

...THE SEVERE THUNDERSTORM WARNING FOR NORTHWESTERN HANCOCK...
SOUTHEASTERN GREENE AND SOUTHWESTERN TALIAFERRO COUNTIES WILL EXPIRE
AT 545 PM EDT...
                
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 will be allowed to expire.  However gusty winds
are still possible with this thunderstorm.

LAT...LON 3332 8311 3336 8317 3337 8317 3339 8319
      3339 8321 3345 8326 3347 8328 3350 8328
      3363 8308 3352 8291
TIME...MOT...LOC 2138Z 042DEG 11KT 3348 8311 

$$

The office that day

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

Issued	Product	Office	Counties	Lasted
Jul 26, 2:15 PM EDT	Special Weather Statement	FFC	Baldwin, Putnam	30 min
Jul 26, 2:44 PM EDT	Special Weather Statement	FFC	Jones	46 min
Jul 26, 3:33 PM EDT	Special Weather Statement	FFC	Bibb	42 min
Jul 26, 3:48 PM EDT	Special Weather Statement	FFC	Glascock	42 min
Jul 26, 4:01 PM EDT	Special Weather Statement	FFC	Hancock, Warren	44 min
Jul 26, 4:24 PM EDT	Special Weather Statement	FFC	Bibb, Peach	51 min
Jul 26, 4:31 PM EDT	Special Weather Statement	FFC	Glascock	44 min
Jul 26, 4:44 PM EDT	Severe Thunderstorm Warning	FFC	Crawford, Houston, Macon, Peach, Taylor, Twiggs	46 min
Jul 26, 5:01 PM EDT	Special Weather Statement	FFC	Glascock, Greene, Hancock, Jefferson, Taliaferro, Warren	44 min
Jul 26, 5:26 PM EDT	Special Weather Statement	FFC	Taylor	49 min
Jul 26, 5:31 PM EDT	Severe Thunderstorm Warning	FFC	Morgan, Walton	44 min
Jul 26, 6:16 PM EDT	Severe Thunderstorm Warning	FFC	Butts, Henry, Jasper, Morgan, Newton	44 min
Jul 26, 6:48 PM EDT	Special Weather Statement	FFC	Sumter, Webster	57 min
Jul 26, 7:02 PM EDT	Special Weather Statement	FFC	Butts	43 min
Jul 26, 7:27 PM EDT	Special Weather Statement	FFC	Cherokee, Pickens	48 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.