Alert archive / Florida / Tornado Warnings in 1998

Tornado Warning 28, NWS Miami, FL

September 24, 1998Miami-Dade County, Florida

NWS Miami, FL issued this tornado warning at Sep 24, 1998, 9:56 PM EDT for Miami-Dade County, Florida. It was in force for 44 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 24, 1998, 9:56 PM EDT (01:56 UTC)
Expired
Sep 24, 1998, 10:40 PM EDT
In force
44 min
Issued by
NWS Miami, FL
Area
Whole counties

County Miami-Dade County, FL

The radar

The Miami radar (KAMX), 9 km from the middle of the area, began a volume at 01:59 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 00:00Z, 1.9 hours before the alert went out and 31 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 1998-09-25Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1419 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 1998-09-25The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 83 square meters per square second.193958Sfc1 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
1419 J/kg
Mixed-layer CIN
-6 J/kg
Mixed-layer LCL
969 m above ground
0-6 km bulk shear
18 kt
0-1 km storm-relative helicity
83 m²/s²
0-3 km storm-relative helicity
83 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.

210 
WFUS1 KMIA 250158 RRA
TORMIA
FLC025-250240-

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE MIAMI FL
956 PM EDT THU SEP 24 1998

THE NATIONAL WEATHER SERVICE IN MIAMI HAS ISSUED A

* TORNADO WARNING FOR...
  NORTHERN DADE COUNTY IN SOUTHEASTERN FLORIDA

* UNTIL 1040 PM EDT

* AT 952 PM EDT... DOPPLER RADAR INDICATED A DEVELOPING TORNADO
  NEAR BAL HARBOUR. THE STORM WAS MOVING WEST AT 40 MPH. SOME AREAS
  IN THE PATH OF THIS STORM ARE SUNNY ISLES...BAL HARBOUR...NORTH
  MIAMI...NORTH MIAMI BEACH...CAROL CITY AND OPA LOCKA.

IF YOU LIVE IN A HOME OR APARTMENT...SEEK REFUGE IN THE INNERMOST
PORTION OF THE BUILDING ON THE LOWEST FLOOR. AVOID WINDOWS AND
PROTECT YOUR BODY FROM FLYING DEBRIS WITH CUSHIONS...BLANKETS...OR
PILLOWS.

The office that day

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

IssuedProductOfficeCountiesLasted
Sep 24, 9:01 PM EDTTornado WarningMFLMonroe44 min
Sep 24, 9:29 PM EDTTornado WarningMFLMiami-Dade46 min
Sep 25, 1:42 PM EDTTornado WarningMFLBroward48 min
Sep 25, 6:40 PM EDTFlash Flood WarningMFLMiami-Dade115 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.