Alert archive / Georgia / Severe Thunderstorm Warnings in 2012

Severe Thunderstorm Warning 3, NWS Jacksonville, FL

January 21, 2012Appling County, Georgia

NWS Jacksonville, FL issued this severe thunderstorm warning at Jan 21, 2012, 6:45 PM EST for Appling 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
Jan 21, 2012, 6:45 PM EST (23:45 UTC)
Expired
Jan 21, 2012, 7:15 PM EST
In force
30 min
Issued by
NWS Jacksonville, FL
Area
Storm-based polygon

County Appling County, GA

What was reported inside it

TimeReportWhereRemark
Jan 21, 6:45 PM ESTHAIL 1.759 N Baxley, GAGOLFBALL SIZE HAIL REPORTED 9 MILES NORTH OF BAXLEY
Jan 21, 7:08 PM ESTHAIL 0.758 Nne Baxley, GADIME TO PENNY SIZE HAIL REPORTED 8.5 MILES NORTHEAST OF BAXLEY

Local storm reports filed while the alert was in force, from inside its polygon or its counties.

The nearest sounding before it

Jacksonville, FL (KJAX), launched 12:00Z, 11.8 hours before the alert went out and 164 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, Jacksonville, FL at 12:00Z on 2012-01-21Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCL10008507005003002001001 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, Jacksonville, FL at 12:00Z on 2012-01-21The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 237 square meters per square second.19395878Sfc1 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
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
948 m above ground
0-6 km bulk shear
42 kt
0-1 km storm-relative helicity
237 m²/s²
0-3 km storm-relative helicity
159 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.

453 
WUUS52 KJAX 212345
SVRJAX
GAC001-220015-
/O.NEW.KJAX.SV.W.0003.120121T2345Z-120122T0015Z/

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE JACKSONVILLE FL
645 PM EST SAT JAN 21 2012

THE NATIONAL WEATHER SERVICE IN JACKSONVILLE HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  NORTHEASTERN APPLING COUNTY IN SOUTHEAST GEORGIA

* UNTIL 715 PM EST

* AT 645 PM EST...NATIONAL WEATHER SERVICE METEOROLOGISTS WERE
  TRACKING A SEVERE THUNDERSTORM CAPABLE OF PRODUCING QUARTER SIZE
  HAIL...AND DAMAGING WINDS IN EXCESS OF 60 MPH.  THIS STORM WAS
  LOCATED NEAR PLANT HATCH...AND MOVING SOUTHEAST AT 35 MPH.

* THE SEVERE THUNDERSTORM WILL OTHERWISE REMAIN OVER MAINLY RURAL
  AREAS OF THE INDICATED COUNTY.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

REPORT SEVERE WEATHER OR DAMAGE TO THE NEAREST LAW ENFORCEMENT AGENCY
OR YOUR COUNTY EMERGENCY MANAGEMENT.

&&

LAT...LON 3193 8228 3191 8222 3188 8211 3176 8214
      3190 8241 3194 8234
TIME...MOT...LOC 2345Z 289DEG 30KT 3190 8229

$$

ZIBURA
1 follow-up statement
153 
WWUS52 KJAX 220003
SVSJAX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE JACKSONVILLE FL
703 PM EST SAT JAN 21 2012

GAC001-220015-
/O.CON.KJAX.SV.W.0003.000000T0000Z-120122T0015Z/
APPLING GA-
703 PM EST SAT JAN 21 2012

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 715 PM EST
FOR CENTRAL APPLING COUNTY...

AT 703 PM EST...NATIONAL WEATHER SERVICE METEOROLOGISTS CONTINUED TO
TRACK A SEVERE THUNDERSTORM CAPABLE OF PRODUCING GOLFBALL SIZE HAIL...
AND DAMAGING WINDS IN EXCESS OF 60 MPH.  THIS STORM WAS LOCATED OVER
NORTHEASTERN APPLING COUNTY...OR 10 MILES NORTH OF SURRENCY...MOVING
SOUTHEAST AT 35 MPH.

THE SEVERE THUNDERSTORM WILL OTHERWISE REMAIN OVER MAINLY RURAL AREAS
OF THE INDICATED COUNTY.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

REPORT SEVERE WEATHER OR DAMAGE TO THE NEAREST LAW ENFORCEMENT AGENCY
OR YOUR COUNTY EMERGENCY MANAGEMENT.

&&

LAT...LON 3185 8232 3191 8221 3188 8211 3176 8214
TIME...MOT...LOC 0003Z 288DEG 28KT 3186 8213

$$

ZIBURA

The office that day

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

IssuedProductOfficeCountiesLasted
Jan 21, 6:12 PM ESTSevere Thunderstorm WarningJAXAppling, Jeff Davis48 min
Jan 21, 6:26 PM ESTSevere Thunderstorm WarningJAXAppling, Bacon, Coffee, Jeff Davis49 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; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive.