Alert archive / Florida / Tornado Warnings in 2004

Tornado Warning 29, NWS Melbourne, FL

September 6, 2004Osceola County, Florida

NWS Melbourne, FL issued this tornado warning at Sep 6, 2004, 8:01 AM EDT for Osceola County, Florida. It was in force for 59 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 6, 2004, 8:01 AM EDT (12:01 UTC)
Expired
Sep 6, 2004, 9:00 AM EDT
In force
59 min
Issued by
NWS Melbourne, FL
Area
Counties, with a storm outline in the text

County Osceola County, FL

The radar

The Melbourne radar (KMLB), 62 km from the middle of the area, began a volume at 12:01 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 6, 7:55 AM EDTTornado WatchSPC6 hr

The nearest sounding before it

Tampa Bay, FL (KTBW), launched 12:00Z, 0.0 hours before the alert went out and 116 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, Tampa Bay, FL at 12:00Z on 2004-09-06Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 457 joules per kilogram.LCLEL10008507005003002001001 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, Tampa Bay, FL at 12:00Z on 2004-09-06The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 10 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
457 J/kg
Mixed-layer CIN
-1 J/kg
Mixed-layer LCL
612 m above ground
0-6 km bulk shear
17 kt
0-1 km storm-relative helicity
10 m²/s²
0-3 km storm-relative helicity
31 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.2

Open this sounding in Storm Lab

The text

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

415 
WFUS52 KMLB 061201
TORMLB
FLC097-061300-

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE MELBOURNE FL
759 AM EDT MON SEP 6 2004

THE NATIONAL WEATHER SERVICE IN MELBOURNE HAS ISSUED A

* TORNADO WARNING FOR...
  OSCEOLA COUNTY
  IN EAST CENTRAL FLORIDA

* UNTIL 900 AM EDT

* AT 751 AM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED
  SEVERAL CELLS CAPABLE OF PRODUCING A TORNADO IN AN OUTER RAIN BAND
  ASSOCIATED WITH TROPICAL STORM FRANCES ALONG A LINE EXTENDING FROM
  5 MILES SOUTHWEST OF LAKE KISSIMMEE TO 44 MILES SOUTH OF LAKE
  KISSIMMEE...OR ALONG A LINE EXTENDING FROM 5 MILES SOUTHWEST OF
  LAKE KISSIMMEE TO 13 MILES SOUTHWEST OF SEBRING...MOVING
  NORTHEAST AT 60 MPH.

* THE THREAT FOR CELLS MOVING INTO OSCEOLA COUNTY TO PRODUCE
  TORNADOES IS HIGH

TORNADOES ASSOCIATED WITH TROPICAL CYCLONES ARE OFTEN WRAPPED IN
HEAVY RAIN AND ARE HARD TO SEE OR HEAR UNTIL THEY ARE VERY CLOSE. DO
NOT GET CAUGHT OFFGUARD

IF YOU ARE IN THE PATH OF A TORNADO...THE SAFEST PLACE IS IN A STRONG
BUILDING ON THE LOWEST FLOOR. MOVE TO AN INTERIOR ROOM AND KEEP AWAY
FROM WINDOWS.

LAT...LON 2795 8130 2724 8159 2786 8116 2857 8087

$$

CRISTALDI

The office that day

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

IssuedProductOfficeCountiesLasted
Sep 6, 7:29 AM EDTTornado WarningMLBOsceola31 min
Sep 6, 9:56 AM EDTTornado WarningMLBVolusia34 min
Sep 6, 10:45 AM EDTTornado WarningMLBOsceola60 min
Sep 6, 11:43 AM EDTTornado WarningMLBVolusia32 min
Sep 6, 11:45 AM EDTTornado WarningMLBBrevard, Volusia30 min
Sep 6, 11:59 AM EDTTornado WarningMLBBrevard, Orange, Volusia31 min
Sep 6, 12:06 PM EDTTornado WarningMLBOrange, Osceola24 min
Sep 6, 12:30 PM EDTTornado WarningMLBBrevard, Orange, Volusia60 min
Sep 6, 12:34 PM EDTSpecial Marine WarningMLB116 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.