Alert archive / Florida / Severe Thunderstorm Warnings in 1996

Severe Thunderstorm Warning 74, NWS Miami, FL

October 7, 1996Broward County, Florida

NWS Miami, FL issued this severe thunderstorm warning at Oct 7, 1996, 11:18 AM EDT for Broward County, Florida. It was in force for 57 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
Oct 7, 1996, 11:18 AM EDT (15:18 UTC)
Expired
Oct 7, 1996, 12:15 PM EDT
In force
57 min
Issued by
NWS Miami, FL
Area
Whole counties

County Broward County, FL

The radar

The Miami radar (KAMX), 60 km from the middle of the area, began a volume at 15:20 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, 3.3 hours before the alert went out and 40 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 1996-10-07Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1232 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 1996-10-07The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 67 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
1232 J/kg
Mixed-layer CIN
-3 J/kg
Mixed-layer LCL
622 m above ground
0-6 km bulk shear
26 kt
0-1 km storm-relative helicity
67 m²/s²
0-3 km storm-relative helicity
78 m²/s²
Significant tornado parameter
0.3
Supercell composite
2.0

Open this sounding in Storm Lab

The text

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

000 
TTAA00 KMIA 071520
SVRMIA
FLC011-071615-
 
BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE MIAMI FL
1118 AM EDT MON OCT 7 1996
 
THE NATIONAL WEATHER SERVICE IN MIAMI HAS ISSUED A
SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL 1215 PM EDT
FOR PEOPLE IN THE FOLLOWING LOCATION......
 
IN SOUTHEAST FLORIDA
 
   ...EASTERN BROWARD COUNTY
 
AND THE ADJACENT COASTAL WATERS
 
AT 1115 AM DOPPLER RADAR IN MIAMI INDICATED A SEVERE THUNDERSTORM MOVING
RAPIDLY ACROSS EASTERN BROWARD COUNTY. ESTIMATES FROM RADAR INDICATE
WINDS TO NEAR 60 MPH WITH THIS STORM. A TORNADO WATCH IS ALSO IN EFFECT
AND SEVERE THUNDERSTORMS CAN PRODUCE TORNADOES. RESIDENTS IN ALL OF
EASTERN BROWARD COUNTY SHOULD TAKE COVER IMMEDIATELY.
 
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.

What forecasters said that day

The local office's own words before this severe thunderstorm warning went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.

In the hours before

Local storm report, Oct 7, 7:43 AM EDT, 3 hours 35 minutes before
STORM REPORT
NATIONAL WEATHER SERVICE MIAMI, FL
739 AM EDT MON OCT 07 1996

TIME(EST)   ....CITY LOCATION....            ...EVENT/REMARKS...

115 AM      NAPLES, FL FROM 5TH AVE          POSSIBLE TORNADO-
            SOUTH NORTHWARD THROUGH          MINOR WIND DAMAGE TO
            TIN CITY TO 5TH AVE NORTH        RESTAURANTS...CAR WASH
                                             AND FRONT OF POLICE
                                             DEPT. 10 BLOCKS AFFECTED.
                                             (RECEIVED INFO FROM COLLIER
                                             CO. EM OFFICE ABOUT 710 AM)

The office that day

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

IssuedProductOfficeCountiesLasted
Oct 7, 5:43 PM EDTSevere Thunderstorm WarningMFLGlades, Hendry62 min

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.