Alert archive / Florida / Tornado Warnings in 2004

Tornado Warning 55, NWS Tallahassee, FL

September 15, 2004Liberty County, Florida

NWS Tallahassee, FL issued this tornado warning at Sep 15, 2004, 9:24 PM EDT for Liberty County, Florida. It was in force for 51 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
Sep 15, 2004, 9:24 PM EDT (01:24 UTC)
Expired
Sep 15, 2004, 10:15 PM EDT
In force
51 min
Issued by
NWS Tallahassee, FL
Area
Counties, with a storm outline in the text

County Liberty County, FL

The radar

The Tallahassee radar (KTLH), 56 km from the middle of the area, began a volume at 01:26 UTC, the scan nearest the moment this went out.

Open the radar archive at this moment

The archived warnings, watches and discussions in force at that minute are drawn over the scan, this one among them.

The watch it was issued in

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

IssuedProductOfficeLasted
Sep 15, 1:00 PM EDTTornado WatchSPC10 hr
Sep 15, 4:50 PM EDTTornado WatchSPC10 hr

The nearest sounding before it

Tallahassee Rgnl, FL (KTLH), launched 00:00Z, 1.4 hours before the alert went out and 59 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 2004-09-16Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1235 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 00:00Z on 2004-09-16The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 241 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
1235 J/kg
Mixed-layer CIN
-11 J/kg
Mixed-layer LCL
843 m above ground
0-6 km bulk shear
51 kt
0-1 km storm-relative helicity
241 m²/s²
0-3 km storm-relative helicity
308 m²/s²
Significant tornado parameter
1.7
Supercell composite
11.2

Open this sounding in Storm Lab

The text

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

000 
WFUS52 KTAE 160126
TORTLH
FLC077-160215-
/X.NEW.KTAE.TO.W.0034.040916T0124Z-040916T0215Z/

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE TALLAHASSEE FL
924 PM EDT WED SEP 15 2004

THE NATIONAL WEATHER SERVICE IN TALLAHASSEE HAS ISSUED A

* TORNADO WARNING FOR...
  CENTRAL LIBERTY COUNTY IN FLORIDA

* UNTIL 1015 PM EDT

* AT 920 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED   
  A DEVELOPING TORNADO 14 MILES NORTHWEST OF CARRABELLE OR ABOUT 10  
  EAST OF SUMATRA...MOVING NORTH AT 40 MPH.

* THE TORNADO IS EXPECTED TO BE NEAR...
  WILMA BY 935 PM EDT...
  VILAS AND CENTRAL CITY BY 940 PM EDT...
  LIBERTY BY 945 PM EDT...

WHEN A TORNADO WARNING IS ISSUED BASED ON DOPPLER RADAR...IT MEANS
THAT STRONG ROTATION HAS BEEN DETECTED IN THE STORM. A TORNADO MAY
ALREADY BE ON THE GROUND...OR IS EXPECTED TO DEVELOP SHORTLY. IF YOU
ARE IN THE PATH OF THIS DANGEROUS STORM...MOVE INDOORS AND TO THE
LOWEST LEVEL OF THE BUILDING. STAY AWAY FROM WINDOWS. IF DRIVING...DO
NOT SEEK SHELTER UNDER A HIGHWAY OVERPASS.

RELAY REPORTS OF SEVERE WEATHER TO THE NATIONAL WEATHER SERVICE IN
TALLAHASSEE AT (850) 942-8833.

A TORNADO WATCH ALSO REMAINS IN EFFECT UNTIL 300 AM EDT THURSDAY.

LAT...LON 3030 8502 3035 8504 3047 8499 3049 8485
      3025 8479 3019 8476 3008 8475 3002 8472
      3002 8493

$$

12-WATSON

The office that day

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

IssuedProductOfficeCountiesLasted
Sep 15, 8:01 PM EDTTornado WarningTAEBay, Calhoun29 min
Sep 15, 8:14 PM EDTTornado WarningTAECalhoun, Gulf, Liberty46 min
Sep 15, 8:29 PM EDTTornado WarningTAEBay, Washington31 min
Sep 15, 8:56 PM EDTTornado WarningTAEHolmes34 min
Sep 15, 8:56 PM EDTTornado WarningTAEJackson49 min
Sep 15, 10:08 PM EDTTornado WarningTAECalhoun, Jackson, Liberty52 min
Sep 15, 10:27 PM EDTTornado WarningTAEFranklin, Liberty48 min
Sep 15, 11:19 PM EDTTornado WarningTAECalhoun, Jackson, Liberty41 min
Sep 16, 2:01 AM EDTTornado WarningTAEFranklin, Wakulla29 min
Sep 16, 2:44 AM EDTTornado WarningTAEGadsden, Leon46 min
Sep 16, 5:26 AM EDTTornado WarningTAEJefferson, Leon34 min
Sep 16, 6:30 AM EDTTornado WarningTAEMadison, Taylor45 min
Sep 16, 7:27 AM EDTTornado WarningTAEBay48 min
Sep 16, 7:28 AM EDTTornado WarningTAEBay, Gulf47 min
Sep 16, 8:00 AM EDTTornado WarningTAEBay, Calhoun, Jackson, Washington45 min
Sep 16, 8:40 AM EDTTornado WarningTAEBay, Gulf35 min
Sep 16, 9:59 AM EDTTornado WarningTAELafayette, Taylor31 min

Nearby

Tornado Warnings in Florida, 2004Every tornado warning in 2004Tornadoes in 2004

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; radar from the NEXRAD Level II archive.