Alert archive / Florida / Tornado Warnings in 1998

Tornado Warning 20, NWS Miami, FL

June 21, 1998Glades County, Florida

NWS Miami, FL issued this tornado warning at Jun 21, 1998, 6:22 PM EDT for Glades County, Florida. It was in force for 38 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
Jun 21, 1998, 6:22 PM EDT (22:22 UTC)
Expired
Jun 21, 1998, 7:00 PM EDT
In force
38 min
Issued by
NWS Miami, FL
Area
Whole counties

County Glades County, FL

The nearest sounding before it

Tampa Bay, FL (KTBW), launched 12:00Z, 10.4 hours before the alert went out and 146 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 1998-06-21Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1764 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, Tampa Bay, FL at 12:00Z on 1998-06-21The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 2 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
1764 J/kg
Mixed-layer CIN
-67 J/kg
Mixed-layer LCL
862 m above ground
0-6 km bulk shear
6 kt
0-1 km storm-relative helicity
2 m²/s²
0-3 km storm-relative helicity
-34 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.

979 
WFUS1 KMIA 212223 RRA
TORMIA
FLC043-212325-

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE MIAMI FL
622 PM EDT SUN JUN 21 1998

THE NATIONAL WEATHER SERVICE IN MIAMI HAS ISSUED A

* TORNADO WARNING FOR...
  EXTREME SOUTHEASTERN GLADES COUNTY IN SOUTHERN FLORIDA

* UNTIL 700 PM EDT.

* AT 619 PM EDT... LAW ENFORCEMENT REPORTS INDICATED A TORNADO
IN A FIELD NEAR THE INTERSECTIONS OF US27 AND ROUTE 720 ABOUT 3 TO 5
MILES SOUTHEAST OF MOORE HAVEN. APPARENT MOVEMENT OF THE TORNADO IS
EAST AT 15 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
Jun 21, 4:36 PM EDTSevere Thunderstorm WarningMFLBroward, Hendry49 min
Jun 21, 5:21 PM EDTSevere Thunderstorm WarningMFLHendry49 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.