Alert archive / Georgia / Severe Thunderstorm Warnings in 2016

Severe Thunderstorm Warning 254, NWS Atlanta, GA

August 13, 20164 counties in Georgia

NWS Atlanta, GA issued this severe thunderstorm warning at Aug 13, 2016, 8:50 PM EDT for 4 counties in Georgia. It was in force for 25 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
Aug 13, 2016, 8:50 PM EDT (00:50 UTC)
Expired
Aug 13, 2016, 9:15 PM EDT
In force
25 min
Issued by
NWS Atlanta, GA
Area
Storm-based polygon
Hail
0.75 in
Wind
60.0 mph

Counties Baldwin County, GA, Hancock County, GA, Washington County, GA, Wilkinson County, GA

The radar

The Robins AFB radar (KJGX), 44 km from the middle of the area, began a volume at 00:54 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

TimeReportWhereRemark
Aug 13, 9:05 PM EDTTSTM WND DMGMontpelier, GAA TREE WAS BLOWN DOWN AT THE INTERSECTION OF SPARTA HIGHWAY AND STEMBRIDGE RD.

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 139 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-pSkew-T log-p diagram, Peachtre/Fal Fld, GA at 00:00Z on 2016-08-14Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1882 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Peachtre/Fal Fld, GA at 00:00Z on 2016-08-14The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -1 square meters per square second.1939Sfc1 km3 km6 km9 kmRMLM
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
1882 J/kg
Mixed-layer CIN
-20 J/kg
Mixed-layer LCL
1114 m above ground
0-6 km bulk shear
2 kt
0-1 km storm-relative helicity
-1 m²/s²
0-3 km storm-relative helicity
-43 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

057 
WUUS52 KFFC 140050
SVRFFC
GAC009-141-303-319-140115-
/O.NEW.KFFC.SV.W.0254.160814T0050Z-160814T0115Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE PEACHTREE CITY GA
850 PM EDT SAT AUG 13 2016

THE NATIONAL WEATHER SERVICE IN PEACHTREE CITY HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  NORTHEASTERN WILKINSON COUNTY IN CENTRAL GEORGIA...
  SOUTH CENTRAL HANCOCK COUNTY IN EAST CENTRAL GEORGIA...
  EASTERN BALDWIN COUNTY IN CENTRAL GEORGIA...
  WEST CENTRAL WASHINGTON COUNTY IN EAST CENTRAL GEORGIA...

* UNTIL 915 PM EDT

* AT 850 PM EDT...A SEVERE THUNDERSTORM WAS LOCATED 8 MILES SOUTHWEST
  OF DEEPSTEP...OR 10 MILES SOUTHEAST OF MILLEDGEVILLE...MOVING NORTH
  AT 15 MPH.

  HAZARD...60 MPH WIND GUSTS AND PENNY SIZE HAIL. 

  SOURCE...RADAR INDICATED. 

  IMPACT...EXPECT DAMAGE TO ROOFS...SIDING...AND TREES. 

* OTHER LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO
  MILLEDGEVILLE...MIDWAY-HARDWICK...LINTON...HARDWICK...HEBRON AND
  SCOTTSBORO.

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 3291 8299 3289 8316 3311 8328 3315 8297
TIME...MOT...LOC 0050Z 169DEG 14KT 3297 8310 

HAIL...0.75IN
WIND...60MPH
 
$$
1 follow-up statement
238 
WWUS52 KFFC 140104
SVSFFC

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE PEACHTREE CITY GA
904 PM EDT SAT AUG 13 2016

GAC009-141-303-319-140115-
/O.CON.KFFC.SV.W.0254.000000T0000Z-160814T0115Z/
WILKINSON GA-HANCOCK GA-BALDWIN GA-WASHINGTON GA-
904 PM EDT SAT AUG 13 2016

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 915 PM EDT
FOR NORTH CENTRAL WILKINSON...SOUTH CENTRAL HANCOCK...EASTERN BALDWIN
AND WEST CENTRAL WASHINGTON COUNTIES...

AT 904 PM EDT...A SEVERE THUNDERSTORM WAS LOCATED 7 MILES SOUTHEAST
OF MILLEDGEVILLE...MOVING NORTH AT 15 MPH.

HAZARD...60 MPH WIND GUSTS AND PENNY SIZE HAIL. 

SOURCE...RADAR INDICATED. 

IMPACT...EXPECT DAMAGE TO ROOFS...SIDING...AND TREES. 

OTHER LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO
MILLEDGEVILLE...MIDWAY-HARDWICK...LINTON...HARDWICK AND HEBRON. 

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 3295 8299 3293 8318 3311 8328 3315 8297
TIME...MOT...LOC 0104Z 169DEG 14KT 3303 8311 

HAIL...0.75IN
WIND...60MPH
 
$$

The office that day

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

IssuedProductOfficeCountiesLasted
Aug 13, 8:00 PM EDTSpecial Weather StatementFFCWilcox30 min
Aug 13, 8:12 PM EDTSpecial Weather StatementFFCTwiggs33 min
Aug 13, 8:13 PM EDTSpecial Weather StatementFFCWilkinson32 min
Aug 13, 8:28 PM EDTSpecial Weather StatementFFCWilkinson32 min
Aug 13, 8:32 PM EDTSpecial Weather StatementFFCDooly28 min
Aug 13, 8:38 PM EDTSpecial Weather StatementFFCWilcox37 min
Aug 13, 8:42 PM EDTSpecial Weather StatementFFCTwiggs33 min
Aug 13, 8:44 PM EDTSpecial Weather StatementFFCBaldwin31 min
Aug 13, 8:59 PM EDTSpecial Weather StatementFFCHouston, Pulaski31 min
Aug 13, 9:15 PM EDTSpecial Weather StatementFFCBaldwin, Hancock, Jones, Washington, Wilkinson30 min
Aug 13, 9:26 PM EDTSpecial Weather StatementFFCTwiggs34 min
Aug 13, 9:42 PM EDTSpecial Weather StatementFFCTwiggs33 min
Aug 13, 9:44 PM EDTSpecial Weather StatementFFCBaldwin31 min
Aug 13, 9:57 PM EDTSpecial Weather StatementFFCGreene, Taliaferro, Warren33 min
Aug 13, 10:14 PM EDTSpecial Weather StatementFFCBaldwin, Jones31 min
Aug 13, 10:29 PM EDTSpecial Weather StatementFFCGreene, Taliaferro, Warren, Wilkes31 min
Aug 13, 11:54 PM EDTSpecial Weather StatementFFCLaurens36 min

Nearby

Severe Thunderstorm Warnings in Georgia, 2016Every 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.