Alert archive / Florida / Severe Thunderstorm Warnings in 1996

Severe Thunderstorm Warning 2, NWS Key West, FL

May 14, 1996Levy County, Florida

NWS Key West, FL issued this severe thunderstorm warning at May 14, 1996, 4:20 PM EDT for Levy County, Florida. It was in force for 60 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
May 14, 1996, 4:20 PM EDT (20:20 UTC)
Expired
May 14, 1996, 5:20 PM EDT
In force
60 min
Issued by
NWS Key West, FL
Area
Whole counties

County Levy County, FL

The radar

The Jacksonville radar (KJAX), 170 km from the middle of the area, began a volume at 20:25 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

Jacksonville, FL (KJAX), launched 12:00Z, 8.3 hours before the alert went out and 171 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, Jacksonville, FL at 12:00Z on 1996-05-14Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 107 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Jacksonville, FL at 12:00Z on 1996-05-14The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 28 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
107 J/kg
Mixed-layer CIN
-16 J/kg
Mixed-layer LCL
634 m above ground
0-6 km bulk shear
44 kt
0-1 km storm-relative helicity
28 m²/s²
0-3 km storm-relative helicity
50 m²/s²
Significant tornado parameter
0.0
Supercell composite
-0.3

Open this sounding in Storm Lab

The text

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

000 
TTAA00 KEYW 142023
SVREYW
FLC075-142120-

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE KEY WEST FL
420 PM EDT TUE MAY 14 1996

THE NATIONAL WEATHER SERVICE IN KEY WEST HAS ISSUED A
SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL  520 PM EDT
FOR PEOPLE IN THE FOLLOWING LOCATION......

IN SOUTHWEST FLORIDA

        ...MAINLAND MONROE COUNTY...

NATIONAL WEATHER SERVICE RADAR INDIACTED A SEVERE THUNDERSTORM WAS
OVER NORTHEAST MAINLAND MONROE COUNTY. LITTLE OR NO MOVEMENT WAS    
INDICATED.                                                   

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

Special weather statement, May 14, 4:09 PM EDT, 11 minutes before
FLZ075-142100-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE KEY WEST FL
408 PM EDT TUE MAY 14 1996

...STRONG CLUSTERS OF THUNDERSTORMS OVER MAINLAND MONROE...

AT 400 PM EDT NATIONAL WEATHER SERVICE RADAR INDICATED NUMEROUS STRONG
THUNDERSTORMS OVER EASTERN MAINLAND MONROE COUNTY...

THESE STORMS WILL PRODUCE VERY HEAVY RAIN...STRONG AND GUSTY WINDS...
DANGEROUS LIGHTNING AND SMALL HAIL.

LITTLE OR NO MOVEMENT WAS INDICATED.

HEAVY RAINFALL FROM THE SLOW MOVING STORMS COULD CREATE FLOODING
IN LOW LYING AREAS AND ROADWAYS.

STAY TUNED TO THIS STATION FOR THE LATEST INFORMATION FROM THE
NATIONAL WEATHER SERVICE IN KEY WEST.
.
/4

The office that day

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

IssuedProductOfficeCountiesLasted
May 14, 4:20 PM EDTSevere Thunderstorm WarningKEYMonroe60 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.