Alert archive / Florida / Tornado Warnings in 1998

Tornado Warning 53, NWS Melbourne, FL

September 25, 1998Osceola County, Florida

NWS Melbourne, FL issued this tornado warning at Sep 25, 1998, 1:27 PM EDT for Osceola County, Florida. It was in force for 58 min. No storm report in the archive falls inside the area while it was in force.

The area

The counties it named.

The facts

Issued
Sep 25, 1998, 1:27 PM EDT (17:27 UTC)
Expired
Sep 25, 1998, 2:25 PM EDT
In force
58 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 17:30 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 25, 11:00 AM EDTTornado WatchSPC12 hr

The nearest sounding before it

Cape Canaveral, FL (KXMR), launched 12:00Z, 5.5 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 12:00Z on 1998-09-25Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 2959 joules per kilogram.LCLLFCEL10008507005003002001001 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 12:00Z on 1998-09-25The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 13 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
2959 J/kg
Mixed-layer CIN
-2 J/kg
Mixed-layer LCL
632 m above ground
0-6 km bulk shear
2 kt
0-1 km storm-relative helicity
13 m²/s²
0-3 km storm-relative helicity
89 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.

660 
WFUS01 KMLB 251729 RRA
TORMLB
FLC097-251825-

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE MELBOURNE FL
127 PM EDT FRI SEP 25 1998

THE NATIONAL WEATHER SERVICE IN MELBOURNE HAS ISSUED A

* TORNADO WARNING FOR...

     OSCEOLA COUNTY IN EAST CENTRAL FLORIDA

* UNTIL 225 PM EDT

* AT 122 PM... NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  TORNADO NEAR THE FLORIDA TURNPIKE 10 MILES SOUTH OF HOLOPAW.
  MOVEMENT WAS NORTHWEST AT 30 MPH.

* THE TORNADO IS EXPECTED TO BE NEAR...

    SOUTHERN ST CLOUD BETWEEN 145 AND 200 PM.
    WEST LAKE TOHO BETWEEN 200 AND 210 PM.

EARLIER STORMS PRODUCE A CONFIRMED TORNADO TOUCHDOWN ALONG CANOE
CREEK ROAD 8 MILES SOUTH OF ST CLOUD AROUND 113 PM. NO DAMAGE WAS
REPORTED.

IF YOU ARE CAUGHT OUTSIDE IN THE PATH OF A TORNADO...SEEK SHELTER IN
A NEARBY REINFORCED BUILDING. AS A LAST RESORT...SEEK SHELTER IN
A DITCH OR LOW SPOT AND COVER YOUR HEAD WITH YOUR HANDS.

&

The office that day

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

IssuedProductOfficeCountiesLasted
Sep 25, 6:10 AM EDTTornado WarningMLBMartin30 min
Sep 25, 6:43 AM EDTTornado WarningMLBSaint Lucie62 min
Sep 25, 7:23 AM EDTTornado WarningMLBOkeechobee62 min
Sep 25, 7:29 AM EDTTornado WarningMLBMartin61 min
Sep 25, 8:05 AM EDTFlash Flood WarningMLBMartin, Saint Lucie115 min
Sep 25, 10:08 AM EDTTornado WarningMLBSaint Lucie67 min
Sep 25, 10:34 AM EDTTornado WarningMLBIndian River66 min
Sep 25, 11:34 AM EDTTornado WarningMLBIndian River56 min
Sep 25, 12:16 PM EDTTornado WarningMLBBrevard59 min
Sep 25, 12:23 PM EDTTornado WarningMLBOsceola57 min
Sep 25, 1:15 PM EDTTornado WarningMLBBrevard65 min

Nearby

Tornado Warnings in Florida, 1998Every tornado warning in 1998Tornadoes in 1998

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.