Alert archive / Florida / Severe Thunderstorm Warnings in 2012

Severe Thunderstorm Warning 224, NWS Tallahassee, FL

July 1, 2012Jefferson County, Madison County, Florida; Brooks County, Lowndes County, Georgia

NWS Tallahassee, FL issued this severe thunderstorm warning at Jul 1, 2012, 11:38 PM EDT for Jefferson County, Madison County, Florida; Brooks County, Lowndes County, Georgia. It was in force for 37 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
Jul 1, 2012, 11:38 PM EDT (03:38 UTC)
Expired
Jul 2, 2012, 12:15 AM EDT
In force
37 min
Issued by
NWS Tallahassee, FL
Area
Storm-based polygon

Counties Jefferson County, FL, Madison County, FL, Brooks County, GA, Lowndes County, GA

What was reported inside it

TimeReportWhereRemark
Jul 1, 11:40 PM EDTTSTM WND DMGQuitman, GATREES AND POWER LINES DOWN.

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

The nearest sounding before it

Tallahassee Rgnl, FL (KTLH), launched 00:00Z, 3.6 hours before the alert went out and 89 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 00:00Z on 2012-07-02Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 8567 joules per kilogram.LCLEL10008507005003002001001 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 00:00Z on 2012-07-02The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -33 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
8567 J/kg
Mixed-layer CIN
0 J/kg
Mixed-layer LCL
502 m above ground
0-6 km bulk shear
13 kt
0-1 km storm-relative helicity
-33 m²/s²
0-3 km storm-relative helicity
178 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.

556 
WUUS52 KTAE 020338
SVRTAE
FLC065-079-GAC027-185-020415-
/O.NEW.KTAE.SV.W.0224.120702T0338Z-120702T0415Z/

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE TALLAHASSEE FL
1138 PM EDT SUN JUL 1 2012

THE NATIONAL WEATHER SERVICE IN TALLAHASSEE HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  NORTHEASTERN JEFFERSON COUNTY IN FLORIDA...
  MADISON COUNTY IN FLORIDA...
  SOUTHERN BROOKS COUNTY IN SOUTH CENTRAL GEORGIA...
  SOUTHERN LOWNDES COUNTY IN SOUTH CENTRAL GEORGIA...

* UNTIL 1215 AM EDT

* AT 1136 PM EDT...THE NATIONAL WEATHER SERVICE HAS DETECTED A LINE
  OF SEVERE THUNDERSTORMS CAPABLE OF PRODUCING DAMAGING WINDS IN
  EXCESS OF 60 MPH.  THESE STORMS WERE LOCATED ALONG A LINE EXTENDING
  FROM 8 MILES SOUTHWEST OF QUITMAN TO 20 MILES NORTHEAST OF
  MADISON...OR ALONG A LINE EXTENDING FROM GROOVERVILLE TO
  JENNINGS...AND MOVING SOUTHWEST AT 30 MPH.

* OTHER LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO
  EMPRESS...PINETTA...LOVETT...CHERRY LAKE...ASHVILLE...HANSON...
  HAMBURG...DILLS...LEE...GREENVILLE...AUCILLA AND HOPEWELL.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

THIS IS A DANGEROUS STORM. IF YOU ARE IN ITS PATH...PREPARE
IMMEDIATELY. PEOPLE OUTSIDE SHOULD MOVE INSIDE A STRONG BUILDING BUT
AWAY FROM WINDOWS.

&&

LAT...LON 3062 8326 3043 8322 3042 8319 3039 8317
      3034 8320 3031 8321 3028 8323 3042 8390
      3066 8379 3066 8374 3076 8374 3089 8368
      3077 8313 3063 8313
TIME...MOT...LOC 0339Z 025DEG 28KT 3071 8369 3060 8314

$$

42-DVD

The office that day

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

IssuedProductOfficeCountiesLasted
Jul 1, 11:53 PM EDTSevere Thunderstorm WarningTAEGadsden, Jefferson, Leon52 min
Jul 2, 12:11 AM EDTSevere Thunderstorm WarningTAEJefferson, Madison49 min
Jul 2, 12:28 AM EDTSevere Thunderstorm WarningTAEGadsden, Jackson62 min
Jul 2, 12:46 AM EDTSpecial Weather StatementTAEGadsden, Leon44 min
Jul 2, 1:31 AM EDTSpecial Weather StatementTAEHolmes59 min
Jul 2, 1:42 AM EDTSpecial Weather StatementTAECalhoun, Liberty33 min
Jul 2, 1:53 AM EDTSevere Thunderstorm WarningTAEHolmes, Jackson37 min
Jul 2, 2:01 AM EDTSevere Thunderstorm WarningTAEBay, Calhoun, Gulf, Holmes, Jackson, Liberty and 1 more44 min
Jul 2, 2:27 AM EDTSevere Thunderstorm WarningTAEHolmes, Walton48 min
Jul 2, 2:59 AM EDTSpecial Marine WarningTAE61 min
Jul 2, 3:11 AM EDTSpecial Weather StatementTAEWalton64 min
Jul 2, 6:30 PM EDTSpecial Weather StatementTAELafayette45 min
Jul 1, 9:06 PM EDTSevere Thunderstorm WarningTAEBen Hill, Irwin, Tift, Turner, Worth54 min
Jul 1, 9:51 PM EDTSevere Thunderstorm WarningTAEBerrien, Cook, Dougherty, Irwin, Lanier, Lee and 4 more54 min
Jul 1, 10:26 PM EDTSevere Thunderstorm WarningTAEBerrien, Brooks, Colquitt, Cook, Dougherty, Lanier and 4 more64 min
Jul 1, 10:44 PM EDTSevere Thunderstorm WarningTAEBaker, Calhoun, Dougherty, Mitchell, Randolph, Terrell46 min
Jul 1, 11:08 PM EDTSevere Thunderstorm WarningTAEBaker, Brooks, Decatur, Grady, Mitchell, Thomas67 min
Jul 1, 11:29 PM EDTSevere Thunderstorm WarningTAEBaker, Decatur, Early, Grady, Miller, Mitchell and 1 more61 min
Jul 2, 12:05 AM EDTAreal Flood AdvisoryTAEQuitman, Randolph115 min

Nearby

Severe Thunderstorm Warnings in Florida, 2012Severe 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.