Alert archive / Florida / Tornado Warnings in 1987

Tornado Warning 12, NWS Miami, FL

September 28, 1987Miami-Dade County, Florida

NWS Miami, FL issued this tornado warning at Sep 28, 1987, 3:57 PM EDT for Miami-Dade County, Florida. It was in force for 37 min.

The area

The counties it named.

The facts

Issued
Sep 28, 1987, 3:57 PM EDT (19:57 UTC)
Expired
Sep 28, 1987, 4:34 PM EDT
In force
37 min
Issued by
NWS Miami, FL
Area
Whole counties

County 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, 8.0 hours before the alert went out and 169 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 1987-09-28Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 2676 joules per kilogram.LCLEL10008507005003002001001 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 1987-09-28The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 0 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
2676 J/kg
Mixed-layer CIN
-3 J/kg
Mixed-layer LCL
729 m above ground
0-6 km bulk shear
2 kt
0-1 km storm-relative helicity
0 m²/s²
0-3 km storm-relative helicity
7 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.

000 
TTAA00 KMIA 281957
TORMIA
FLC025-282100-
 
BULLETIN - EBS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE MIAMI FL
357 PM EDT MON SEP 28 1987
 
THE NATIONAL WEATHER SERVICE HAS ISSUED A TORNADO WARNING
EFFECTIVE UNTIL  500 PM EDT FOR PEOPLE IN THE FOLLOWING COUNTY...
 
IN SOUTHEAST FLORIDA
          ...SOUTHEASTERN DADE
 
A TORNADO WAS OBSERVED MOVING INLAND OVER THE IMMEDIATE COASTAL
SECTIONS OF BISCAYNE BAY JUST SOUTH OF MATHESON HAMMOCK.
 
IF YOUR ARE IN THE PATH OF A TORNADO..THE SAFEST PLACE IS UNDER A
PIECE OF STURDY FURNITURE IN AN INTERIOR ROOM ON THE LOWEST FLOOR.
USE BLANKETS OR PILLOWS TO COVER YOUR BODY.  AVOID WINDOWS.  DEADLY
LIGHTNING..HAIL..AND VERY HEAVY RAIN ARE ALL POSSIBLE INe THIS STORM.

Nearby

Tornado Warnings in Florida, 1987Every tornado warning in 1987Tornadoes in 1987

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.