Alert archive / Florida / Tornado Warnings in 1986

Tornado Warning 1, NWS Miami, FL

February 7, 1986Miami-Dade County, Florida

NWS Miami, FL issued this tornado warning at Feb 7, 1986, 3:35 PM EST for Miami-Dade County, Florida. It was in force for 55 min.

The area

The counties it named.

The facts

Issued
Feb 7, 1986, 3:35 PM EST (20:35 UTC)
Expired
Feb 7, 1986, 4:30 PM EST
In force
55 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, 8.6 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 1986-02-07Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 756 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 1986-02-07The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 16 square meters per square second.19395878Sfc1 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
756 J/kg
Mixed-layer CIN
-36 J/kg
Mixed-layer LCL
902 m above ground
0-6 km bulk shear
33 kt
0-1 km storm-relative helicity
16 m²/s²
0-3 km storm-relative helicity
15 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.6

Open this sounding in Storm Lab

The text

As transmitted, in the capitals the NWS used until 2016.

000 
TTAA00 KMIA 072032
TORMIA
FLC025-072130-

ZZZZZ
BULLETIN / EBS ACTIVIATION REQUESTED
TORNADO WARNING AND SPECIAL MARINE WARNING
NATIONAL WEATHER SERVICE MIAMI FL
335 PM EST FRI FEB 7 1986

THE NATIONAL WEATHER SERVICE HAS ISSUED A TORNADO WARNING AND SPECIAL
MARINE WARNING EFFECTIVE UNTIL 430 PM EST FOR PERSONS IN THE FOLLOWING
COUNTY AND ADJACENT COASTAL WATERS.
SOUTH FLORIDA...DADE.

A TORNADO BRIEFLY TOUCHED DOWN IN EAST DADE COUNTY AROUND MATHESON
HAMMOCK AREA AT 330 PM. ADDITIONAL TORNADOES MAY FORM IN EASTERN
DADE FROM THAT SEVERE THUNDERSTORM DURING THE NEXT HOUR.

The office that day

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

IssuedProductOfficeCountiesLasted
Feb 7, 3:30 PM ESTSevere Thunderstorm WarningMFLMiami-Dade60 min

Nearby

Tornado Warnings in Florida, 1986Every tornado warning in 1986Tornadoes in 1986

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.