Alert archive / Florida / Severe Thunderstorm Warnings in 2012

Severe Thunderstorm Warning 201, NWS Tallahassee, FL

June 11, 2012Madison County, Florida

NWS Tallahassee, FL issued this severe thunderstorm warning at Jun 11, 2012, 5:10 PM EDT for Madison County, Florida. It was in force for 36 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
Jun 11, 2012, 5:10 PM EDT (21:10 UTC)
Expired
Jun 11, 2012, 5:46 PM EDT
In force
36 min
Issued by
NWS Tallahassee, FL
Area
Storm-based polygon

County Madison County, FL

The nearest sounding before it

Tallahassee Rgnl, FL (KTLH), launched 12:00Z, 9.2 hours before the alert went out and 84 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 2012-06-11Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1839 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 2012-06-11The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 145 square meters per square second.193958Sfc1 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
1839 J/kg
Mixed-layer CIN
-20 J/kg
Mixed-layer LCL
713 m above ground
0-6 km bulk shear
30 kt
0-1 km storm-relative helicity
145 m²/s²
0-3 km storm-relative helicity
194 m²/s²
Significant tornado parameter
0.0
Supercell composite
4.6

Open this sounding in Storm Lab

The text

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

041 
WUUS52 KTAE 112110
SVRTAE
FLC079-112200-
/O.NEW.KTAE.SV.W.0201.120611T2110Z-120611T2200Z/

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE TALLAHASSEE FL
510 PM EDT MON JUN 11 2012

THE NATIONAL WEATHER SERVICE IN TALLAHASSEE HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  MADISON COUNTY IN FLORIDA...

* UNTIL 600 PM EDT

* AT 506 PM EDT...THE NATIONAL WEATHER SERVICE HAS DETECTED A SEVERE
  THUNDERSTORM CAPABLE OF PRODUCING DAMAGING WINDS IN EXCESS OF 60
  MPH.  THIS STORM WAS LOCATED 17 MILES WEST OF MADISON...OR NEAR
  GREENVILLE...AND MOVING EAST AT 30 MPH.

* OTHER LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO
  EBB...HAMBURG...HOPEWELL...CHERRY LAKE...HANSON...PINETTA AND LEE.

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 3034 8370 3052 8372 3063 8329 3062 8327
      3057 8327 3046 8323 3042 8323
TIME...MOT...LOC 2110Z 269DEG 25KT 3043 8366

$$

17-GOULD
1 follow-up statement
895 
WWUS52 KTAE 112146
SVSTAE

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE TALLAHASSEE FL
546 PM EDT MON JUN 11 2012

FLC079-112155-
/O.CAN.KTAE.SV.W.0201.000000T0000Z-120611T2200Z/
MADISON FL-
546 PM EDT MON JUN 11 2012

...THE SEVERE THUNDERSTORM WARNING FOR MADISON COUNTY IS CANCELLED...

RELAY REPORTS OF SEVERE WEATHER TO THE NATIONAL WEATHER SERVICE IN
TALLAHASSEE AT (8 5 0) 9 4 2 8 8 3 3. OR...YOU MAY CONTACT THE
NEAREST LAW ENFORCEMENT AGENCY OR YOUR COUNTY EMERGENCY MANAGEMENT.
THEY WILL RELAY YOUR REPORT TO THE NATIONAL WEATHER SERVICE.

LAT...LON 3034 8370 3052 8372 3063 8329 3062 8327
      3057 8327 3046 8323 3042 8323
TIME...MOT...LOC 2145Z 269DEG 25KT 3043 8338

$$

17-GOULD

The office that day

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

IssuedProductOfficeCountiesLasted
Jun 11, 11:37 AM EDTRip Current StatementTAEBay, Franklin, Gulf, Walton32 hr
Jun 11, 12:23 PM EDTSevere Thunderstorm WarningTAEWalton54 min
Jun 11, 2:27 PM EDTSevere Thunderstorm WarningTAEJackson33 min
Jun 11, 2:53 PM EDTSevere Thunderstorm WarningTAEJackson24 min
Jun 11, 3:40 PM EDTSevere Thunderstorm WarningTAEGadsden, Leon, Liberty35 min
Jun 11, 3:57 PM EDTSevere Thunderstorm WarningTAEJefferson, Leon48 min
Jun 11, 4:23 PM EDTSevere Thunderstorm WarningTAEJefferson, Madison52 min
Jun 11, 4:48 PM EDTSevere Thunderstorm WarningTAEJefferson, Madison27 min

Nearby

Severe Thunderstorm Warnings in Florida, 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.