Alert archive / Florida / Tornado Warnings in 2004

Tornado Warning 12, NWS Melbourne, FL

August 13, 2004Lake County, Florida

NWS Melbourne, FL issued this tornado warning at Aug 13, 2004, 1:35 PM EDT for Lake 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, 1:35 PM EDT (17:35 UTC)
Expired
Aug 13, 2004, 2:30 PM EDT
In force
55 min
Issued by
NWS Melbourne, FL
Area
Counties, with a storm outline in the text

County Lake County, FL

The radar

The Tampa radar (KTBW), 121 km from the middle of the area, began a volume at 17:36 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

Tampa Bay, FL (KTBW), launched 12:00Z, 5.6 hours before the alert went out and 121 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 2004-08-13Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCL10008507005003002001001 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 2004-08-13The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -160 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
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 131735
TORMLB
FLC069-131830-

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

THE NATIONAL WEATHER SERVICE IN MELBOURNE HAS ISSUED A

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

* UNTIL 230 PM EDT

* AT 131 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  STORM CAPABLE OF PRODUCING A TORNADO 29 MILES SOUTH OF CLERMONT...
  OR ABOUT 5 MILES WEST OF HAINES CITY...MOVING NORTH AT 35 MPH.

* THE STORM IS EXPECTED TO BE...
  NEAR CLERMONT AT 215 PM 
  NEAR FERNDALE AT 220 PM    
  NEAR HOWEY IN THE HILLS AT 230 PM 

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 2877 8168 2838 8168 2835 8171 2838 8185
      2874 8188 2877 8192 2880 8188 2880 8165

$$

RL

The office that day

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

IssuedProductOfficeCountiesLasted
Aug 13, 11:59 AM EDTTornado WarningMLBOkeechobee61 min
Aug 13, 1:01 PM EDTSevere Thunderstorm WarningMLBOkeechobee, Osceola59 min
Aug 13, 1:23 PM EDTTornado WarningMLBOkeechobee, Osceola62 min
Aug 13, 2:06 PM EDTTornado WarningMLBOrange44 min
Aug 13, 2:31 PM EDTTornado WarningMLBLake59 min
Aug 13, 2:38 PM EDTTornado WarningMLBOsceola37 min
Aug 13, 3:54 PM EDTTornado WarningMLBBrevard, Volusia66 min
Aug 13, 4:51 PM EDTSpecial Marine WarningMLB54 min
Aug 13, 5:00 PM EDTTornado WarningMLBOrange, Osceola60 min
Aug 13, 6:50 PM EDTTornado WarningMLBLake, Orange, Osceola55 min
Aug 13, 7:09 PM EDTTornado WarningMLBVolusia36 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.