Alert archive / Florida / Tornado Warnings in 1998

Tornado Warning 23, NWS Miami, FL

August 3, 1998Broward County, Florida

NWS Miami, FL issued this tornado warning at Aug 3, 1998, 7:37 PM EDT for Broward 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
Aug 3, 1998, 7:37 PM EDT (23:37 UTC)
Expired
Aug 3, 1998, 8:35 PM EDT
In force
58 min
Issued by
NWS Miami, FL
Area
Whole counties

County Broward County, FL

The radar

The Miami radar (KAMX), 60 km from the middle of the area, began a volume at 23:39 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

Miami, FL (KMFL), launched 12:00Z, 11.6 hours before the alert went out and 40 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 12:00Z on 1998-08-03Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1826 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 12:00Z on 1998-08-03The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -26 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
1826 J/kg
Mixed-layer CIN
-10 J/kg
Mixed-layer LCL
816 m above ground
0-6 km bulk shear
4 kt
0-1 km storm-relative helicity
-26 m²/s²
0-3 km storm-relative helicity
-27 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.

742 
WFUS1 KMIA 032339 RRA
TORMIA
FLC011-040035-

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE MIAMI FL
737 PM EDT MON AUG 3 1998

THE NATIONAL WEATHER SERVICE IN MIAMI HAS ISSUED A

* TORNADO WARNING FOR...
  EASTERN BROWARD COUNTY IN SOUTHEASTERN FLORIDA

* UNTIL 835 PM EDT

* AT 730 PM...A REPORT WAS RECEIVED OF A DEVELOPING TORNADO
  IN THE CORAL SPRINGS AND MARGATE AREA. THIS WAS PRODUCED BY
  A LINE OF THUNDERSTORMS SWEEPING THROUGH EASTERN BROWARD
  COUNTY. MOVEMENT WILL BE EAST NORTHEAST AT 10 MPH AND WILL
  AFFECT THE POMPANO BEACH AREA BETWEEN 8 AND 830 PM.

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
Aug 3, 5:41 PM EDTTornado WarningMFLMiami-Dade59 min
Aug 3, 5:59 PM EDTTornado WarningMFLBroward, Miami-Dade61 min
Aug 3, 7:15 PM EDTSevere Thunderstorm WarningMFLBroward65 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.