Alert archive / Florida / Severe Thunderstorm Warnings in 1996

Severe Thunderstorm Warning 12, NWS Miami, FL

April 30, 1996Collier County, Hendry County, Florida

NWS Miami, FL issued this severe thunderstorm warning at Apr 30, 1996, 12:54 PM EDT for Collier County, Hendry County, Florida. It was in force for 66 min. No storm report in the archive falls inside the area while it was in force.

The area

The counties it named.

The facts

Issued
Apr 30, 1996, 12:54 PM EDT (16:54 UTC)
Expired
Apr 30, 1996, 2:00 PM EDT
In force
66 min
Issued by
NWS Miami, FL
Area
Whole counties

Counties Collier County, FL, Hendry County, FL

The radar

The Miami radar (KAMX), 117 km from the middle of the area, began a volume at 16:54 UTC, the scan nearest the moment this went out.

Open the radar archive at this moment

The archived warnings, watches and discussions in force at that minute are drawn over the scan, this one among them.

The nearest sounding before it

Miami, FL (KMFL), launched 12:00Z, 4.9 hours before the alert went out and 113 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, Miami, FL at 12:00Z on 1996-04-30Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1176 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, Miami, FL at 12:00Z on 1996-04-30The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 34 square meters per square second.193958Sfc1 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
1176 J/kg
Mixed-layer CIN
-1 J/kg
Mixed-layer LCL
682 m above ground
0-6 km bulk shear
21 kt
0-1 km storm-relative helicity
34 m²/s²
0-3 km storm-relative helicity
120 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 301700 COR
SVRMIA
FLC051-021-301800-

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE MIAMI FL
1254 PM EDT TUE APR 30 1996

THE NATIONAL WEATHER SERVICE IN MIAMI HAS ISSUED A
SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL  200 PM EDT
FOR PEOPLE IN THE FOLLOWING LOCATION...

IN SOUTH FLORIDA

   ...WESTERN HENDRY COUNTY

IN SOUTHWEST FLORIDA

   ...NORTHERN COLLIER COUNTY

DOPPLER RADAR HAS INDICATED A SEVERE THUNDERSTORM MOVING INTO
NORTHERN COLLIER AND WESTERN HENDRY COUNTIES. RECENTLY A
WIND GUST OF 58 MPH WAS REPORTED AT SOUTHWEST REGIONAL AIRPORT
NEAR FORT MYERS.  THE STORM IS MOVING EAST-NORTHEAST AT 25 TO
30 MPH.

DAMAGING WIND IN EXCESS OF 55 MPHT...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, 1996Every severe thunderstorm warning in 1996

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; radar from the NEXRAD Level II archive.