Alert archive / Florida / Severe Thunderstorm Warnings in 1995

Severe Thunderstorm Warning 13, NWS Miami, FL

February 20, 1995Broward County, Collier County, Florida

NWS Miami, FL issued this severe thunderstorm warning at Feb 20, 1995, 2:12 PM EST for Broward County, Collier County, Florida. It was in force for 63 min.

The area

The counties it named.

The facts

Issued
Feb 20, 1995, 2:12 PM EST (19:12 UTC)
Expired
Feb 20, 1995, 3:15 PM EST
In force
63 min
Issued by
NWS Miami, FL
Area
Whole counties

Counties Broward County, FL, Collier County, FL

The nearest sounding before it

Key West, FL (KEYW), launched 12:00Z, 7.2 hours before the alert went out and 192 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 1995-02-20Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 31 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 1995-02-20The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 71 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
31 J/kg
Mixed-layer CIN
-59 J/kg
Mixed-layer LCL
642 m above ground
0-6 km bulk shear
42 kt
0-1 km storm-relative helicity
71 m²/s²
0-3 km storm-relative helicity
110 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 201914 RRA
SVRMIA
FLC011-021-202015-
 
BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE MIAMI FL
212 PM EST MON FEB 20 1995
 
THE NATIONAL WEATHER SERVICE IN MIAMI HAS ISSUED A
SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL  315 PM EST
FOR PEOPLE IN THE FOLLOWING LOCATIONS...
 
IN SOUTHEAST FLORIDA
 
   ...WESTERN BROWARD COUNTY
 
IN SOUTHWEST FLORIDA
 
   ...EASTERN COLLIER COUNTY
 
AT 205 PM...A SEVERE THUNDERSTORM WAS CENTERED OVER ALLIGATOR
ALLEY IN EASTERN COLLIER COUNTY. MOVEMENT WAS EAST AT 35 MPH.
MAIN THREAT IS WINDS IN EXCESS OF 58 MPH.
 
PERSONS IN WESTERN BROWARD WILL BE AFFECTED BETWEEN 230 PM
AND 330 PM.
 
 
IF THREATENING WEATHER IS SIGHTED...TAKE SHELTER...THEN REPORT THE
SEVERE WEATHER TO YOUR LOCAL LAW ENFORCEMENT AGENCY.

The office that day

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

IssuedProductOfficeCountiesLasted
Feb 20, 12:53 PM ESTSevere Thunderstorm WarningMFLCollier67 min
Feb 20, 2:30 PM ESTTornado WarningMFLBroward60 min
Feb 20, 3:23 PM ESTSevere Thunderstorm WarningMFLMiami-Dade52 min

Nearby

Severe Thunderstorm Warnings in Florida, 1995Every severe thunderstorm warning in 1995

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.