Alert archive / Georgia / Severe Thunderstorm Warnings in 2012

Severe Thunderstorm Warning 264, NWS Tallahassee, FL

July 17, 2012Early County, Miller County, Georgia

NWS Tallahassee, FL issued this severe thunderstorm warning at Jul 17, 2012, 1:14 PM EDT for Early County, Miller County, Georgia. It was in force for 31 min. No storm report in the archive falls inside the area while it was in force.

The area

The outline as issued.

The facts

Issued
Jul 17, 2012, 1:14 PM EDT (17:14 UTC)
Expired
Jul 17, 2012, 1:45 PM EDT
In force
31 min
Issued by
NWS Tallahassee, FL
Area
Storm-based polygon

Counties Early County, GA, Miller County, GA

The watch it was issued in

The SPC watch in force over the same counties when this warning went out.

IssuedProductOfficeLasted
Jul 17, 12:49 PM EDTSevere Thunderstorm WatchSPC7 hr

The nearest sounding before it

Tallahassee Rgnl, FL (KTLH), launched 12:00Z, 5.2 hours before the alert went out and 112 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, Tallahassee Rgnl, FL at 12:00Z on 2012-07-17Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 2058 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Tallahassee Rgnl, FL at 12:00Z on 2012-07-17The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 18 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
2058 J/kg
Mixed-layer CIN
-40 J/kg
Mixed-layer LCL
906 m above ground
0-6 km bulk shear
19 kt
0-1 km storm-relative helicity
18 m²/s²
0-3 km storm-relative helicity
38 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

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

479 
WUUS52 KTAE 171714
SVRTAE
GAC099-201-171745-
/O.NEW.KTAE.SV.W.0264.120717T1714Z-120717T1745Z/

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE TALLAHASSEE FL
114 PM EDT TUE JUL 17 2012

THE NATIONAL WEATHER SERVICE IN TALLAHASSEE HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  EARLY COUNTY IN SOUTHWEST GEORGIA...
  MILLER COUNTY IN SOUTHWEST GEORGIA...

* UNTIL 145 PM EDT

* AT 112 PM EDT...THE NATIONAL WEATHER SERVICE DETECTED A SEVERE
  THUNDERSTORM CAPABLE OF PRODUCING QUARTER SIZE HAIL...AND DAMAGING
  WINDS NEAR 60 MPH.  THIS STORM WAS LOCATED NEAR
  SAWHATCHEE...AND MOVING SOUTHEAST AT 10 MPH.

* OTHER LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO
  CENTERVILLE...CEDAR SPRINGS...SAFFOLD...MAYHAW...JONES CROSSROADS
  AND HOWARDS MILL

PRECAUTIONARY/PREPAREDNESS ACTIONS...

CONTINUOUS CLOUD TO GROUND LIGHTNING IS OCCURRING WITH THIS STORM.
LIGHTNING IS ONE OF NATURES NUMBER ONE KILLERS. REMEMBER...IF YOU
CAN HEAR THUNDER...YOU ARE CLOSE ENOUGH TO BE STRUCK BY LIGHTNING.

&&

LAT...LON 3117 8479 3111 8504 3113 8506 3114 8506
      3117 8510 3129 8510 3132 8508 3137 8498
TIME...MOT...LOC 1713Z 335DEG 9KT 3126 8501

$$

9-FOURNIER

The office that day

Everything else NWS Tallahassee, FL issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Jul 17, 12:16 PM EDTSevere Thunderstorm WarningTAETift, Turner, Worth29 min
Jul 17, 12:38 PM EDTSevere Thunderstorm WarningTAETift, Turner, Worth37 min
Jul 17, 12:56 PM EDTSevere Thunderstorm WarningTAEGrady, Mitchell34 min
Jul 17, 1:01 PM EDTSevere Thunderstorm WarningTAETift, Turner, Worth29 min
Jul 17, 1:07 PM EDTSevere Thunderstorm WarningTAEBerrien, Cook, Lanier, Lowndes23 min
Jul 17, 1:33 PM EDTAreal Flood AdvisoryTAEBerrien, Irwin, Tift117 min
Jul 17, 1:34 PM EDTSevere Thunderstorm WarningTAEBerrien, Irwin, Tift26 min
Jul 17, 1:49 PM EDTSevere Thunderstorm WarningTAEBen Hill, Irwin26 min
Jul 17, 1:56 PM EDTSevere Thunderstorm WarningTAECalhoun, Dougherty, Terrell34 min
Jul 17, 2:18 PM EDTSevere Thunderstorm WarningTAEBen Hill, Berrien, Irwin27 min
Jul 17, 2:24 PM EDTSevere Thunderstorm WarningTAEDecatur, Grady36 min
Jul 17, 2:31 PM EDTSevere Thunderstorm WarningTAEDecatur29 min
Jul 17, 2:54 PM EDTSevere Thunderstorm WarningTAEDecatur, Seminole36 min
Jul 17, 3:10 PM EDTSevere Thunderstorm WarningTAEEarly, Miller35 min
Jul 17, 3:22 PM EDTSevere Thunderstorm WarningTAEGrady, Thomas23 min
Jul 17, 4:30 PM EDTSevere Thunderstorm WarningTAETerrell45 min
Jul 17, 4:58 PM EDTSevere Thunderstorm WarningTAEClay32 min

Nearby

Severe Thunderstorm Warnings in Georgia, 2012Every severe thunderstorm warning in 2012

Sources

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; the sounding from the Mesonet's radiosonde archive.