Alert archive / Georgia / Severe Thunderstorm Warnings in 2016

Severe Thunderstorm Warning 37, NWS Atlanta, GA

May 11, 2016White County, Georgia

NWS Atlanta, GA issued this severe thunderstorm warning at May 11, 2016, 3:03 PM EDT for White County, Georgia. It was in force for 27 min. 3 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: May 11, 2016, 3:03 PM EDT (19:03 UTC)
Expired: May 11, 2016, 3:30 PM EDT
In force: 27 min
Issued by: NWS Atlanta, GA
Area: Storm-based polygon
Hail: 1.0 in
Wind: 60.0 mph

County White County, GA

The radar

The Greer radar (KGSP), 136 km from the middle of the area, began a volume at 19:03 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
May 11, 3:10 PM EDT	HAIL 1	1 Sw Stovall Mill, GA	THE PUBLIC REPORTED QUARTER SIZED HAIL THAT LASTED 20 MINUTES NEAR STOVALL ROAD IN CLEVELAND.
May 11, 3:11 PM EDT	TSTM WND DMG	1 Nnw Kinseytown, GA	TREE DOWN AT INTERSECTION OF DEAN MOUNTAIN ROAD AND MICKEY MOUSE DRIVE.
May 11, 3:12 PM EDT	HAIL 0.88	1 Sse Kinseytown, GA	NICKEL-SIZE HAIL NEAR WHITE AND HABERSHAM COUNTY LINE ALONG HWY 115. REPORTED BY PUBLIC. TIME ESTIMATED FROM RADAR.

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, 7.1 hours before the alert went out and 158 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: 115 J/kg
Mixed-layer CIN: -155 J/kg
Mixed-layer LCL: 889 m above ground
0-6 km bulk shear: 23 kt
0-1 km storm-relative helicity: 31 m²/s²
0-3 km storm-relative helicity: -20 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

The text

As transmitted.

147 
WUUS52 KFFC 111903
SVRFFC
GAC311-111930-
/O.NEW.KFFC.SV.W.0037.160511T1903Z-160511T1930Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE PEACHTREE CITY GA
303 PM EDT WED MAY 11 2016

THE NATIONAL WEATHER SERVICE IN PEACHTREE CITY HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  SOUTHERN WHITE COUNTY IN NORTHEASTERN GEORGIA...

* UNTIL 330 PM EDT

* AT 303 PM EDT...A SEVERE THUNDERSTORM WAS LOCATED NEAR CLEVELAND...
  MOVING SOUTHEAST 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
  CLEVELAND...HELEN...MOSSY CREEK...SAUTEE AND LEAF. 

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 3470 8364 3467 8364 3465 8366 3462 8364
      3458 8364 3455 8362 3453 8363 3450 8367
      3450 8374 3460 8383 3473 8368
TIME...MOT...LOC 1903Z 315DEG 14KT 3461 8370 

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
May 11, 2:18 PM EDT	Special Weather Statement	FFC	White	27 min
May 11, 3:13 PM EDT	Special Weather Statement	FFC	Gordon	32 min
May 11, 3:21 PM EDT	Severe Thunderstorm Warning	FFC	Gordon	24 min

Nearby

Severe Thunderstorm Warnings in Georgia, 2016 Every severe thunderstorm warning in 2016

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.