Alert archive / Georgia / Severe Thunderstorm Warnings in 2016

Severe Thunderstorm Warning 264, NWS Atlanta, GA

September 12, 2016Floyd County, Georgia

NWS Atlanta, GA issued this severe thunderstorm warning at Sep 12, 2016, 7:22 PM EDT for Floyd County, Georgia. It was in force for 38 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
Sep 12, 2016, 7:22 PM EDT (23:22 UTC)
Expired
Sep 12, 2016, 8:00 PM EDT
In force
38 min
Issued by
NWS Atlanta, GA
Area
Storm-based polygon
Hail
1.0 in
Wind
60.0 mph

County Floyd County, GA

What was reported inside it

TimeReportWhereRemark
Sep 12, 7:32 PM EDTHAIL 11 W Wax, GA

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, 11.4 hours before the alert went out and 116 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 12:00Z on 2016-09-12Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 30 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 12:00Z on 2016-09-12The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 13 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
30 J/kg
Mixed-layer CIN
-252 J/kg
Mixed-layer LCL
1431 m above ground
0-6 km bulk shear
10 kt
0-1 km storm-relative helicity
13 m²/s²
0-3 km storm-relative helicity
22 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

693 
WUUS52 KFFC 122322
SVRFFC
GAC115-130000-
/O.NEW.KFFC.SV.W.0264.160912T2322Z-160913T0000Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE PEACHTREE CITY GA
722 PM EDT MON SEP 12 2016

THE NATIONAL WEATHER SERVICE IN PEACHTREE CITY HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  FLOYD COUNTY IN NORTHWESTERN GEORGIA...

* UNTIL 800 PM EDT

* AT 722 PM EDT...A SEVERE THUNDERSTORM WAS LOCATED NEAR SENEY...OR 9
  MILES SOUTHEAST OF ROME...MOVING NORTHWEST 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
  ROME...CAVE SPRING...COOSA...LINDALE AND SENEY. 

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 3429 8546 3429 8539 3433 8537 3437 8534
      3438 8531 3422 8502 3421 8505 3410 8505
      3410 8512 3408 8512 3408 8515 3410 8516
      3410 8526 3409 8526 3415 8544 3428 8546
TIME...MOT...LOC 2322Z 118DEG 19KT 3414 8510 

HAIL...1.00IN
WIND...60MPH
 
$$
1 follow-up statement
576 
WWUS52 KFFC 122352
SVSFFC

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE PEACHTREE CITY GA
752 PM EDT MON SEP 12 2016

GAC115-130002-
/O.EXP.KFFC.SV.W.0264.000000T0000Z-160913T0000Z/
FLOYD GA-
752 PM EDT MON SEP 12 2016

...THE SEVERE THUNDERSTORM WARNING FOR FLOYD COUNTY WILL EXPIRE AT
800 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.  HOWEVER GUSTY WINDS
AND HEAVY RAIN ARE STILL POSSIBLE WITH THIS THUNDERSTORM.

LAT...LON 3429 8546 3429 8539 3433 8537 3437 8534
      3438 8531 3422 8502 3421 8505 3410 8505
      3410 8512 3408 8512 3408 8515 3410 8516
      3410 8526 3409 8526 3415 8544 3428 8546
TIME...MOT...LOC 2348Z 118DEG 19KT 3414 8510 

$$

The office that day

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

IssuedProductOfficeCountiesLasted
Sep 11, 8:01 PM EDTSpecial Weather StatementFFCSumter, Webster44 min
Sep 11, 8:03 PM EDTSpecial Weather StatementFFCHouston42 min
Sep 11, 8:06 PM EDTSpecial Weather StatementFFCCandler24 min
Sep 11, 8:45 PM EDTSpecial Weather StatementFFCSumter30 min
Sep 11, 8:47 PM EDTSpecial Weather StatementFFCDooly28 min
Sep 11, 9:15 PM EDTSpecial Weather StatementFFCDooly30 min
Sep 11, 10:13 PM EDTSpecial Weather StatementFFCEmanuel, Toombs47 min
Sep 11, 10:58 PM EDTSpecial Weather StatementFFCEmanuel, Toombs47 min
Sep 11, 11:45 PM EDTSpecial Weather StatementFFCTreutlen30 min
Sep 12, 12:23 AM EDTSpecial Weather StatementFFCToombs67 min
Sep 12, 2:13 PM EDTSpecial Weather StatementFFCMeriwether32 min
Sep 12, 2:38 PM EDTSpecial Weather StatementFFCLamar, Pike37 min
Sep 12, 2:55 PM EDTSpecial Weather StatementFFCButts, Monroe35 min
Sep 12, 3:11 PM EDTSevere Thunderstorm WarningFFCLamar, Monroe34 min
Sep 12, 3:30 PM EDTSpecial Weather StatementFFCUpson30 min
Sep 12, 3:45 PM EDTSpecial Weather StatementFFCLamar, Monroe30 min
Sep 12, 4:17 PM EDTSpecial Weather StatementFFCJones28 min
Sep 12, 4:19 PM EDTSpecial Weather StatementFFCLamar26 min
Sep 12, 4:29 PM EDTSpecial Weather StatementFFCClayton, Henry31 min
Sep 12, 4:42 PM EDTSpecial Weather StatementFFCJones, Monroe, Upson33 min
Sep 12, 5:13 PM EDTSpecial Weather StatementFFCBibb32 min
Sep 12, 5:19 PM EDTSpecial Weather StatementFFCHarris26 min
Sep 12, 5:21 PM EDTSpecial Weather StatementFFCTalbot24 min
Sep 12, 5:28 PM EDTSpecial Weather StatementFFCSchley32 min
Sep 12, 5:36 PM EDTSpecial Weather StatementFFCBibb, Peach24 min
Sep 12, 5:44 PM EDTSpecial Weather StatementFFCCobb31 min
Sep 12, 5:58 PM EDTSpecial Weather StatementFFCBibb32 min
Sep 12, 6:02 PM EDTSpecial Weather StatementFFCMarion43 min
Sep 12, 6:06 PM EDTSpecial Weather StatementFFCPeach24 min
Sep 12, 6:26 PM EDTSpecial Weather StatementFFCPaulding34 min
Sep 12, 6:28 PM EDTSpecial Weather StatementFFCPaulding32 min
Sep 12, 6:34 PM EDTSpecial Weather StatementFFCHouston26 min
Sep 12, 6:45 PM EDTSpecial Weather StatementFFCChattahoochee30 min
Sep 12, 7:29 PM EDTSpecial Weather StatementFFCGilmer31 min
Sep 12, 7:34 PM EDTSpecial Weather StatementFFCMontgomery, Treutlen26 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.