Alert archive / Florida / Severe Thunderstorm Warnings in 1989

Severe Thunderstorm Warning 5, NWS Miami, FL

May 24, 1989Broward County, Miami-Dade County, Florida

NWS Miami, FL issued this severe thunderstorm warning at May 24, 1989, 3:44 PM EDT for Broward County, Miami-Dade County, Florida. It was in force for 46 min.

The area

The counties it named.

The facts

Issued
May 24, 1989, 3:44 PM EDT (19:44 UTC)
Expired
May 24, 1989, 4:30 PM EDT
In force
46 min
Issued by
NWS Miami, FL
Area
Whole counties

Counties Broward County, FL, Miami-Dade County, FL

The radar

The WSR-88D network and its archive begin in 1991, so there is no radar volume for this alert.

The nearest sounding before it

Key West, FL (KEYW), launched 12:00Z, 7.7 hours before the alert went out and 193 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, Key West, FL at 12:00Z on 1989-05-24Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1460 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, Key West, FL at 12:00Z on 1989-05-24The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 21 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
1460 J/kg
Mixed-layer CIN
-44 J/kg
Mixed-layer LCL
1142 m above ground
0-6 km bulk shear
21 kt
0-1 km storm-relative helicity
21 m²/s²
0-3 km storm-relative helicity
10 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

The text of this product is not in the archive. The NWS text archive before 2002 is incomplete.

What forecasters said that day

The local office's own words before this severe thunderstorm warning went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.

In the hours before

Special weather statement, May 24, 1:50 PM EDT, 1 hour 54 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE MIAMI FL
150 PM EDT WED MAY 24 1989

...THUNDERSTORMS DEVELOPING OVER DADE AND BROWARD COUNTIES...

RADAR AND SURFACE OBSERVATIONS INDICATE THAT THUNDERSTORMS HAVE
BEGUN TO DEVELOP OVER LAND.  AT 140 PM MOST OF THESE THUNDERSTORMS
EXTENDED FROM THE COAST WESTWARD ACROSS HOMESTEAD INTO THE
EVERGLADES.  CONDITIONS ARE FAVORABLE FOR THESE THUNDERSTORMS TO
INTENSIFY RAPIDLY.  RESIDENTS OF DADE ANsD BROWARD COUNTIES ESPECIALLY
IN THE WESTERN SUBURBS SHOULD BE PREPARED TO CURTAIL THEIR OUTSIDE
ACTIVITIES AS THESE STORMS MOVE EASTWARD LATER THIS AFTERNOON.
Special weather statement, May 24, 2:29 PM EDT, 1 hour 15 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE MIAMI FL
230 PM EDT WED MAY 24 1989

...THUNDERSTORMS DEVELOPING RAPIDLY OVER SOUTHERN DADE COUNTY...

THUNDERSTORMS CONTINUED TO DEVELOP RAPIDLY OVER SOUTHERN DADE
COUNTY.  AT 225 PM THUNDERSTORMS EXTENDED FROM HOMESTEAD NORTHWARD
TO EAST OF CORAL GABLES.  AT 200 PM SMALL HAIL WAS REPORTED FROM ONE
OF THESE STORMS IN PERRINE.  THESE STORMS ARE INTENSIFYING RAPIDLY
NOW AND RESIDENTS OF SOUTHERN DADE COUNTY SHOULD CURTAIL THEIR OUTSIDE
ACTIVITIES AT THIS TIME.  THESE STORMS WILL BE ACOMPANIED BY
STRONG GUSTY WINDS...SMALL HAIL AND FREQUENT LIGHTNING AS WELL AS
HEAVY RAIN.  ALSO BY 3 PM THESE STORMS SHOULD HAVE DEVELOPED INTO
NORTHEASERN DADE AND SOUTHEASTERN BROWARD COUNTIES.
Local storm report, May 24, 2:34 PM EDT, 1 hour 10 minutes before
LOCAL STORM REPORT
NATIONAL WEATHER SERVICE MIAMI FL
233 PM EDT WED MAY 24 1989

BETWEEN 220 PM AND 230 PM HAIL 1 INCH IN DIAMETER WAS OBSERVED IN
HOMESTEAD BY REPORTERS AT THE SOUTH DADE NEW LEADER NEWSPAPER.

The office that day

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

IssuedProductOfficeCountiesLasted
May 24, 2:51 PM EDTSevere Thunderstorm WarningMFLMiami-Dade69 min

Nearby

Severe Thunderstorm Warnings in Florida, 1989Every severe thunderstorm warning in 1989

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.