Alert archive / Florida / Tornado Warnings in 2004

Tornado Warning 11, NWS Melbourne, FL

August 13, 2004Okeechobee County, Osceola County, Florida

NWS Melbourne, FL issued this tornado warning at Aug 13, 2004, 1:23 PM EDT for Okeechobee County, Osceola County, Florida. It was in force for 62 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, 1:23 PM EDT (17:23 UTC)
Expired: Aug 13, 2004, 2:25 PM EDT
In force: 62 min
Issued by: NWS Melbourne, FL
Area: Counties, with a storm outline in the text

Counties Okeechobee County, FL, Osceola County, FL

The radar

The Melbourne radar (KMLB), 65 km from the middle of the area, began a volume at 17:23 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, 7:30 AM EDT	Tornado Watch	SPC	10 hr

The nearest sounding before it

Tampa Bay, FL (KTBW), launched 12:00Z, 5.4 hours before the alert went out and 118 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 131723
TORMLB
FLC093-097-131825-

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

THE NATIONAL WEATHER SERVICE IN MELBOURNE HAS ISSUED A

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

* UNTIL 225 PM EDT

* AT 123 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED 
STRONG ROTATION WITHIN A SQUALL LINE EXTENDING FROM YEEHAW JUNCTION 
TO LAKE KISSIMMEE. ANOTHER LINE OF STORMS APPROACHING THE CITY OF 
OKEECHOBEE FROM THE SOUTH SHOWS STRONG ROTATION...THESE STORMS ARE 
MOVING NORTH AT 40 MPH.

* STORM PRODUCING STORMS ARE EXPECTED TO BE...
  NEAR LAKE KISSIMMEE...KENANSVILLE AT 140 PM EDT
  NEAR WEST LAKE TOHO...HOLOPAW AT 205 PM EDT
  NEAR HARMONY...SAINT CLOUD AT 210 PM EDT
  
THE IMMEDIATE DANGER OF A TORNADO IS HIGH. PEOPLE IN THE PATH OF THIS
DEVELOPING TORNADO ARE URGED TO QUICKLY PREPARE FOR ITS APPROACH.
THIS IS A DANGEROUS SITUATION ACT NOW AS SECONDS CAN SAVE LIVES

IF YOU ARE IN THE PATH OF A TORNADO...THE SAFEST PLACE IS IN A STRONG
BUILDING ON THE LOWEST FLOOR. ABANDON YOUR MOBILE HOME OR RV FOR 
MORE SUBSTANTIAL SHELTER. IF YOU ARE CAUGHT OUTSIDE...GET INTO AN 
UNFLOODED DITCH OR LOW SPOT AND COVER YOUR HEAD WITH YOUR HANDS AND 
ARMS. ABANDON YOUR VEHICLE IF THE TORNADO IS NEARBY.

LAT...LON 2751 8142 2739 8084 2821 8089 2833 8146

$$

JP

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, 1:35 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, 6:50 PM EDT	Tornado Warning	MLB	Lake, Orange, Osceola	55 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.