Alert archive / Florida / Tornado Warnings in 2004

Tornado Warning 18, NWS Melbourne, FL

August 13, 2004Lake County, Orange County, Osceola County, Florida

NWS Melbourne, FL issued this tornado warning at Aug 13, 2004, 6:50 PM EDT for Lake County, Orange County, Osceola County, Florida. It was in force for 55 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: Aug 13, 2004, 6:50 PM EDT (22:50 UTC)
Expired: Aug 13, 2004, 7:45 PM EDT
In force: 55 min
Issued by: NWS Melbourne, FL
Area: Counties, with a storm outline in the text

Counties Lake County, FL, Orange County, FL, Osceola County, FL

The radar

The Tampa radar (KTBW), 84 km from the middle of the area, began a volume at 22:50 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.

Issued	Product	Office	Lasted
Aug 13, 1:45 PM EDT	Tornado Watch	SPC	12 hr

The nearest sounding before it

Tampa Bay, FL (KTBW), launched 12:00Z, 10.8 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-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

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: 0 J/kg
Mixed-layer CIN: No buoyant parcel
Mixed-layer LCL: 1607 m above ground
0-6 km bulk shear: 12 kt
0-1 km storm-relative helicity: -160 m²/s²
0-3 km storm-relative helicity: -117 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.

000 
WFUS52 KMLB 132250
TORMLB
FLC069-095-097-132345-

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE MELBOURNE FL
645 PM EDT FRI AUG 13 2004

THE NATIONAL WEATHER SERVICE IN MELBOURNE HAS ISSUED A

* TORNADO WARNING FOR...
  SOUTHERN LAKE COUNTY
  ORANGE COUNTY
  NORTHWESTERN OSCEOLA COUNTY
  IN EAST CENTRAL FLORIDA

* UNTIL 745 PM EDT

* AT 642 PM EDT...THE NATIONAL WEATHER SERVICE HAS ISSUED A TORNADO 
  WARNING FOR DESTRUCTIVE WINDS OVER 100 MPH AND TORNADOES IN THE 
  EYE WALL AND INNER RAIN BANDS OF HURRICANE CHARLEY. 

* THE LEADING EDGE OF HURRICANE CHARLEYS DESTRUCTIVE WINDS IS
  EXPECTED TO MOVE INTO THE KISSIMMEE AND GREATER ORLANDO AREA BY
  715 PM.   
   

THE THREAT FOR DAMAGING WINDS AND TORNADOES WILL LAST THROUGH 9 PM 
OR LONGER. 

PEOPLE IN THE PATH OF THIS ADVANCING STORM ARE URGED TO QUICKLY 
PREPARE FOR ITS APPROACH. THIS IS A DANGEROUS SITUATION ACT NOW. 

IF YOU ARE IN THE PATH OF THIS STORM...THE SAFEST PLACE IS IN A 
STRONG BUILDING ON THE LOWEST FLOOR. MOVE TO AN INTERIOR ROOM SUCH 
AS A BATHROOM OR CLOSET. KEEP AWAY FROM WINDOWS. IF NECESSARY...GET 
UNDER A WORKBENCH OR OTHER PIECE OF STURDY FURNITURE. USE BLANKETS 
OR PILLOWS TO COVER YOUR BODY. ABANDON YOUR MOBILE HOME OR RV FOR 
MORE SUBSTANTIAL SHELTER. 

LAT...LON 2792 8210 2779 8140 2856 8117 2868 8189

$$
DD

The office that day

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

Issued	Product	Office	Counties	Lasted
Aug 13, 11:59 AM EDT	Tornado Warning	MLB	Okeechobee	61 min
Aug 13, 1:01 PM EDT	Severe Thunderstorm Warning	MLB	Okeechobee, Osceola	59 min
Aug 13, 1:23 PM EDT	Tornado Warning	MLB	Okeechobee, Osceola	62 min
Aug 13, 1:35 PM EDT	Tornado Warning	MLB	Lake	55 min
Aug 13, 2:06 PM EDT	Tornado Warning	MLB	Orange	44 min
Aug 13, 2:31 PM EDT	Tornado Warning	MLB	Lake	59 min
Aug 13, 2:38 PM EDT	Tornado Warning	MLB	Osceola	37 min
Aug 13, 3:54 PM EDT	Tornado Warning	MLB	Brevard, Volusia	66 min
Aug 13, 4:51 PM EDT	Special Marine Warning	MLB		54 min
Aug 13, 5:00 PM EDT	Tornado Warning	MLB	Orange, Osceola	60 min
Aug 13, 7:09 PM EDT	Tornado Warning	MLB	Volusia	36 min

Nearby

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