Alert archive / Florida / Tornado Warnings in 2003

Tornado Warning 8, NWS Melbourne, FL

July 25, 2003Okeechobee County, Florida

NWS Melbourne, FL issued this tornado warning at Jul 25, 2003, 7:59 PM EDT for Okeechobee County, Florida. 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 25, 2003, 7:59 PM EDT (23:59 UTC)
Expired
Jul 25, 2003, 8:30 PM EDT
In force
31 min
Issued by
NWS Melbourne, FL
Area
Counties, with a storm outline in the text

County Okeechobee County, FL

The radar

The Melbourne radar (KMLB), 109 km from the middle of the area, began a volume at 00:03 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 nearest sounding before it

Cape Canaveral, FL (KXMR), launched 12:00Z, 12.0 hours before the alert went out and 151 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, Cape Canaveral, FL at 12:00Z on 2003-07-25Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 378 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, Cape Canaveral, FL at 12:00Z on 2003-07-25The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 28 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
378 J/kg
Mixed-layer CIN
-3 J/kg
Mixed-layer LCL
549 m above ground
0-6 km bulk shear
11 kt
0-1 km storm-relative helicity
28 m²/s²
0-3 km storm-relative helicity
16 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.

883 
WFUS52 KMLB 252359
TORMLB
FLC093-260030-

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE MELBOURNE FL
757 PM EDT FRI JUL 25 2003

THE NATIONAL WEATHER SERVICE IN MELBOURNE HAS ISSUED A

* TORNADO WARNING FOR...
  SOUTHWEST OKEECHOBEE COUNTY
  IN EAST CENTRAL FLORIDA

* UNTIL 830 PM EDT

* AT 747 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR AND GROUND 
OBSERVERS INDICATED A WATERSPOUT OVER LAKE OKEECHOBEE ABOUT 10  
MILES SOUTHWEST OF OKEECHOBEE CITY...MOVING NORTHWEST AT 20 MPH 
TOWARD SHORE.

* THE TORNADO IS EXPECTED TO BE...
OVER RURAL SOUTHWEST OKEECHOBEE COUNTY AT 810 PM  

THE SAFEST PLACE TO BE DURING A TORNADO IS IN A STRONG BUILDING ON
THE LOWEST FLOOR IN AN INTERIOR ROOM AWAY FROM WINDOWS. GET UNDER A
WORKBENCH OR OTHER PIECE OF STURDY FURNITURE. USE BLANKETS OR PILLOWS
TO COVER YOUR HEAD AND BODY.

EVACUATE MOBILE HOMES OR VEHICLES FOR MORE SUBSTANTIAL SHELTER. IF NO
SHELTER IS AVAILABLE...LIE FLAT IN THE NEAREST UNFLOODED DITCH...
CULVERT...OR OTHER LOW SPOT AND COVER YOUR HEAD WITH YOUR HANDS.
NEVER TRY TO OUTRUN A NEARBY TORNADO IN YOUR CAR.

LAT...LON 2704 8089 2710 8079 2734 8092 2728 8103

$$

The office that day

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

IssuedProductOfficeCountiesLasted
Jul 25, 7:47 AM EDTSpecial Marine WarningMLB88 min
Jul 25, 3:09 PM EDTSevere Thunderstorm WarningMLBBrevard51 min
Jul 25, 6:33 PM EDTSevere Thunderstorm WarningMLBOsceola42 min

Nearby

Tornado Warnings in Florida, 2003Every tornado warning in 2003Tornadoes in 2003

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.