Alert archive / Georgia / Severe Thunderstorm Warnings in 2015

Severe Thunderstorm Warning 142, NWS Atlanta, GA

June 18, 2015Crisp County, Dooly County, Georgia

NWS Atlanta, GA issued this severe thunderstorm warning at Jun 18, 2015, 8:45 PM EDT for Crisp County, Dooly County, Georgia. It was in force for 30 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: Jun 18, 2015, 8:45 PM EDT (00:45 UTC)
Expired: Jun 18, 2015, 9:15 PM EDT
In force: 30 min
Issued by: NWS Atlanta, GA
Area: Storm-based polygon
Hail: 1.0 in
Wind: 60.0 mph

Counties Crisp County, GA, Dooly County, GA

The radar

The Robins AFB radar (KJGX), 73 km from the middle of the area, began a volume at 00:45 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 18, 8:45 PM EDT	TSTM WND DMG	2 Sw Richwood, GA	THE CRISP COUNTY EMERGENCY MANAGER REPORTED SEVERAL TREES AND POWER LINES DOWN IN NORTHERN CRISP COUNTY.
Jun 18, 8:50 PM EDT	TSTM WND DMG	1 Wnw Lamb Town, GA	THE DOOLY COUNTY EMERGENCY MANAGER REPORTED A LARGE CENTER-PIVOT IRRIGATION SYSTEM BLOWN OVER IN SOUTHEASTERN DOOLY COUNTY. THE CONCRETE CENTER ANCHOR POINT WAS PULLED UP OUT OF THE GROUND.

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, 0.8 hours before the alert went out and 156 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: 270 J/kg
Mixed-layer CIN: -124 J/kg
Mixed-layer LCL: 1480 m above ground
0-6 km bulk shear: 25 kt
0-1 km storm-relative helicity: -4 m²/s²
0-3 km storm-relative helicity: 15 m²/s²
Significant tornado parameter: -0.0
Supercell composite: -0.3

Open this sounding in Storm Lab

The text

As transmitted, in the capitals the NWS used until 2016.

542 
WUUS52 KFFC 190045
SVRFFC
GAC081-093-190115-
/O.NEW.KFFC.SV.W.0142.150619T0045Z-150619T0115Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE PEACHTREE CITY GA
845 PM EDT THU JUN 18 2015

THE NATIONAL WEATHER SERVICE IN PEACHTREE CITY HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  NORTH CENTRAL CRISP COUNTY IN CENTRAL GEORGIA...
  EASTERN DOOLY COUNTY IN CENTRAL GEORGIA...

* UNTIL 915 PM EDT

* AT 845 PM EDT...A SEVERE THUNDERSTORM WAS LOCATED OVER VIENNA...
  MOVING NORTHEAST AT 20 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. 

* OTHER LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO
  VIENNA...UNADILLA...PINEHURST AND RICHWOOD. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

PREPARE IMMEDIATELY FOR LARGE HAIL AND DAMAGING WINDS. PEOPLE OUTSIDE
SHOULD MOVE TO A SHELTER...INSIDE A STRONG BUILDING AND AWAY FROM
WINDOWS.

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 3208 8390 3227 8376 3220 8361 3211 8361
      3197 8374
TIME...MOT...LOC 0045Z 218DEG 19KT 3209 8377 

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

1 follow-up statement

781 
WWUS52 KFFC 190110
SVSFFC

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE PEACHTREE CITY GA
910 PM EDT THU JUN 18 2015

GAC081-093-190119-
/O.EXP.KFFC.SV.W.0142.000000T0000Z-150619T0115Z/
CRISP GA-DOOLY GA-
910 PM EDT THU JUN 18 2015

...THE SEVERE THUNDERSTORM WARNING FOR NORTH CENTRAL CRISP AND
EASTERN DOOLY COUNTIES WILL EXPIRE AT 915 PM EDT...
                
THE STORM WHICH PROMPTED THE WARNING HAS WEAKENED BELOW SEVERE
LIMITS...AND NO LONGER POSE AN IMMEDIATE THREAT TO LIFE OR PROPERTY.
THEREFORE THE WARNING WILL BE ALLOWED TO EXPIRE.

LAT...LON 3208 8390 3227 8376 3220 8361 3211 8361
      3197 8374
TIME...MOT...LOC 0109Z 218DEG 19KT 3209 8377 

$$

The office that day

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

Issued	Product	Office	Counties	Lasted
Jun 18, 8:24 PM EDT	Special Weather Statement	FFC	Dooly	36 min
Jun 18, 8:27 PM EDT	Special Weather Statement	FFC	Bibb, Jones, Twiggs	33 min
Jun 18, 8:34 PM EDT	Special Weather Statement	FFC	Johnson	26 min
Jun 18, 9:09 PM EDT	Special Weather Statement	FFC	Dooly	36 min
Jun 18, 9:46 PM EDT	Special Weather Statement	FFC	Emanuel	29 min

Nearby

Severe Thunderstorm Warnings in Georgia, 2015 Every severe thunderstorm warning in 2015

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.