Alert archive / Florida / Severe Thunderstorm Warnings in 1994

Severe Thunderstorm Warning 18, NWS Miami, FL

June 19, 1994Miami-Dade County, Florida

NWS Miami, FL issued this severe thunderstorm warning at Jun 19, 1994, 3:18 PM EDT for Miami-Dade County, Florida. It was in force for 27 min.

The area

The counties it named.

The facts

Issued
Jun 19, 1994, 3:18 PM EDT (19:18 UTC)
Expired
Jun 19, 1994, 3:45 PM EDT
In force
27 min
Issued by
NWS Miami, FL
Area
Whole counties

County Miami-Dade County, FL

The nearest sounding before it

Key West, FL (KEYW), launched 12:00Z, 7.3 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 1994-06-19Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 782 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 1994-06-19The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 8 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
782 J/kg
Mixed-layer CIN
-49 J/kg
Mixed-layer LCL
1068 m above ground
0-6 km bulk shear
13 kt
0-1 km storm-relative helicity
8 m²/s²
0-3 km storm-relative helicity
23 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 
WUUS1 KMIA 191920
SVRMFL
FLC025-192015-
 
BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE MIAMI FL
318 PM EDT SUN JUN 19 1994
 
THE NATIONAL WEATHER SERVICE IN MIAMI HAS ISSUED A
SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL  415 PM EDT
FOR PEOPLE IN THE FOLLOWING LOCATION......
 
IN SOUTHEAST FLORIDA
 
   ...DADE COUNTY
 
 
THE MIAMI DOPPLER RADAR INDICATES A SEVERE THUNDERSTORM IS MOVING
NORTHWARD OVER THE KENDALL AREA AND WILL MOVE NORTH OVER THE AREA JUST
TO THE WEST OF THE MIAMI AIRPORT.
 
DAMAGING WIND IN EXCESS OF 55 MPH...LARGE HAIL...VERY HEAVY RAIN...
AND DEADLY LIGHTNING ARE ALL POSSIBLE IN A SEVERE THUNDERSTORM. SEEK
SHELTER IN A STRONG BUILDING. STAY AWAY FROM WINDOWS. DO NOT USE
TELEPHONES OR ELECTRICAL APPLIANCES.

Nearby

Severe Thunderstorm Warnings in Florida, 1994Every severe thunderstorm warning in 1994

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.