Alert archive / Florida / Tornado Warnings in 1999

Tornado Warning 2, NWS Melbourne, FL

January 3, 1999Osceola County, Florida

NWS Melbourne, FL issued this tornado warning at Jan 3, 1999, 1:03 AM EST for Osceola County, Florida. It was in force for 32 min. 1 report came from inside the area while it was in force.

The area

The counties it named, with what was reported inside it.

The facts

Issued
Jan 3, 1999, 1:03 AM EST (06:03 UTC)
Expired
Jan 3, 1999, 1:35 AM EST
In force
32 min
Issued by
NWS Melbourne, FL
Area
Whole counties

County Osceola County, FL

The radar

The Melbourne radar (KMLB), 49 km from the middle of the area, began a volume at 06:05 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.

What was reported inside it

TimeReportWhereRemark
Jan 3, 1:10 AM ESTThunderstorm Wind 61Deer Park, FLA spotter measured a wind gust of 70 mph with home based equipment.

NCEI Storm Data entries that began inside the alert's area while it was in force. Before 2003 the local storm report archive is thin, so this is the record of what happened rather than what was phoned in.

The watch it was issued in

The SPC watch in force over the same counties when this warning went out.

IssuedProductOfficeLasted
Jan 2, 9:00 PM ESTTornado WatchSPC6 hr

The nearest sounding before it

Cape Canaveral, FL (KXMR), launched 00:00Z, 6.1 hours before the alert went out and 78 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 00:00Z on 1999-01-03Temperature 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, Cape Canaveral, FL at 00:00Z on 1999-01-03The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 3 square meters per square second.19395878Sfc1 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
1021 m above ground
0-6 km bulk shear
32 kt
0-1 km storm-relative helicity
3 m²/s²
0-3 km storm-relative helicity
86 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.

999 
WFUS01 KMLB 030604 RRA
TORMLB
FLC097-030635-

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE MELBOURNE FL
103 AM EST SUN JAN 3 1999

THE NATIONAL WEATHER SERVICE IN MELBOURNE HAS ISSUED A

* TORNADO WARNING FOR...

     CENTRAL AND EASTERN OSCEOLA COUNTY IN EAST CENTRAL FLORIDA

* UNTIL 135 AM EST

* AT 105 AM... NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  DEVELOPING TORNADO NEAR NEW EDEN.  MOVEMENT WAS NORTHEAST
  AT 35 MPH.

* THE TORNADO IS EXPECTED TO AFFECT NORTHEAST OSCEOLA COUNTY ALONG
STATE ROADS 532 AND 419 THROUGH 135 AM


CARS AND MOBILE HOMES CAN BE TOSSED ABOUT BY TORNADO WINDS. DO NOT
TRY TO OUTRUN A TORNADO IN YOUR VEHICLE. ABANDON VEHICLES AND MOBILE
HOMES WHEN THREATENED BY A TORNADO AND GO TO A STRONG BUILDING. IF NO
STRUCTURE IS NEARBY...SEEK SHELTER IN A DITCH OR LOW SPOT.

The office that day

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

IssuedProductOfficeCountiesLasted
Jan 2, 11:28 PM ESTSevere Thunderstorm WarningMLBLake62 min
Jan 3, 12:10 AM ESTTornado WarningMLBOrange, Seminole30 min
Jan 3, 12:29 AM ESTSevere Thunderstorm WarningMLBVolusia61 min
Jan 3, 12:33 AM ESTSevere Thunderstorm WarningMLBOrange, Osceola, Seminole62 min
Jan 3, 1:10 AM ESTSevere Thunderstorm WarningMLBBrevard60 min
Jan 3, 1:31 AM ESTTornado WarningMLBBrevard49 min
Jan 3, 1:36 AM ESTSevere Thunderstorm WarningMLBOkeechobee64 min
Jan 3, 2:29 AM ESTSevere Thunderstorm WarningMLBIndian River, Saint Lucie31 min

Nearby

Tornado Warnings in Florida, 1999Every tornado warning in 1999Tornadoes in 1999

Sources

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; verification from NCEI's Storm Data; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.