Alert archive / Florida / Tornado Warnings in 1998

Tornado Warning 13, NWS Miami, FL

March 1, 1998Hendry County, Florida

NWS Miami, FL issued this tornado warning at Mar 1, 1998, 3:15 AM EST for Hendry County, Florida. It was in force for 35 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
Mar 1, 1998, 3:15 AM EST (08:15 UTC)
Expired
Mar 1, 1998, 3:50 AM EST
In force
35 min
Issued by
NWS Miami, FL
Area
Whole counties

County Hendry County, FL

The radar

The Miami radar (KAMX), 129 km from the middle of the area, began a volume at 07:57 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
Mar 1, 3:15 AM ESTTornado WatchSPC6 hr

The nearest sounding before it

Miami, FL (KMFL), launched 00:00Z, 8.3 hours before the alert went out and 120 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, Miami, FL at 00:00Z on 1998-03-01Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1449 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Miami, FL at 00:00Z on 1998-03-01The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 37 square meters per square second.1939587897117Sfc1 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
1449 J/kg
Mixed-layer CIN
-8 J/kg
Mixed-layer LCL
748 m above ground
0-6 km bulk shear
44 kt
0-1 km storm-relative helicity
37 m²/s²
0-3 km storm-relative helicity
45 m²/s²
Significant tornado parameter
0.3
Supercell composite
2.2

Open this sounding in Storm Lab

The text

As transmitted, in the capitals the NWS used until 2016.

000 
TTAA00 KMIA 010815 RRA
TORMIA
FLC051-010850-

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE MIAMI FL
315 AM EST SUN MAR 1 1998

THE NATIONAL WEATHER SERVICE IN MIAMI FL HAS ISSUED A
TORNADO WARNING EFFECTIVE UNTIL 350 AM EST
FOR PEOPLE IN THE FOLLOWING LOCATION...

IN SOUTHERN FLORIDA

   ...EAST CENTRAL HENDRY COUNTY

AT 313 AM EST... DOPPLER RADAR INDICATED A POSSIBLE TORNADO
OVER EAST CENTRAL HENDRY COUNTY ABOUT MIDWAY BETWEEN DEVILS GARDEN
AND THE BIG CYPRESS SEMINOLE INDIAN RESERVATION. THE STORM IS MOVING
EAST AT 20 TO 25 MPH.

IF YOU ARE IN THE PATH OF A TORNADO...THE SAFEST PLACE IS UNDER
STURDY FURNITURE IN AN INTERIOR ROOM ON THE LOWEST FLOOR. USE
PILLOWS TO PROTECT YOUR HEAD. AVOID WINDOWS. A MOBILE HOME IS NOT A
SAFE REFUGE FROM A TORNADO. MOVE TO A MORE SUBSTANTIAL BUILDING. DO
NOT TRY TO OUTRUN A TORNADO IN YOUR VEHICLE.

The office that day

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

IssuedProductOfficeCountiesLasted
Mar 1, 3:01 AM ESTSevere Thunderstorm WarningMFLHendry49 min
Mar 1, 4:21 AM ESTTornado WarningMFLPalm Beach49 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.