Alert archive / Florida / Severe Thunderstorm Warnings in 1995

Severe Thunderstorm Warning 9, NWS Miami, FL

February 13, 1995Collier County, Florida

NWS Miami, FL issued this severe thunderstorm warning at Feb 13, 1995, 9:50 PM EST for Collier County, Florida. It was in force for 55 min.

The area

The counties it named.

The facts

Issued: Feb 13, 1995, 9:50 PM EST (02:50 UTC)
Expired: Feb 13, 1995, 10:45 PM EST
In force: 55 min
Issued by: NWS Miami, FL
Area: Whole counties

County Collier County, FL

The nearest sounding before it

Key West, FL (KEYW), launched 00:00Z, 2.8 hours before the alert went out and 174 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-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

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: 1416 J/kg
Mixed-layer CIN: -24 J/kg
Mixed-layer LCL: 811 m above ground
0-6 km bulk shear: 58 kt
0-1 km storm-relative helicity: 76 m²/s²
0-3 km storm-relative helicity: 98 m²/s²
Significant tornado parameter: 1.1
Supercell composite: 6.1

Open this sounding in Storm Lab

The text

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

000 
TTAA00 KMIA 140251 RRA
SVRMIA
FLC021-140345-
 
BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE MIAMI FL
950 PM EST MON FEB 13 1995
 
THE NATIONAL WEATHER SERVICE IN MIAMI HAS ISSUED A
SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL 1045 PM EST
FOR PEOPLE IN THE FOLLOWING LOCATION......
 
IN SOUTHWEST FLORIDA
 
   ...NORTHERN COLLIER COUNTY
 
A SEVERE THUNDERSTORM OVER SOUTHERN GLADES COUNTY IS MOVING TO
THE RIGHT TO ITS NORMAL STEERING AND WILL LIKELY CONTAIN VERY
STRONG DAMAGING WINDS AS IT REACHES NORTHERN COLLIER COUNTY WITHIN
THE NEXT 10 MINUTES. CURRENTLY THIS SEVERE THUNDERSTORM IS
MOVING TOWARD THE SOUTHEAST AT 10 TO 15 MPH.
 
RESIDENTS ARE URGED TO TAKE COVER AND PREPARE FOR THE ARRIVAL OF
SEVERE WEATHER.
 
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.
 
IF THREATENING WEATHER IS SIGHTED...TAKE SHELTER...THEN REPORT THE
SEVERE WEATHER TO YOUR LOCAL LAW ENFORCEMENT AGENCY.
 
 
 
&

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, Feb 13, 9:40 PM EST, 10 minutes before

FLZ067-068-502-140345-
SPECIAL WEATHER STATEMENT AND RADAR SUMMARY
NATIONAL WEATHER SERVICE WEST PALM BEACH FL
940 PM EST MON FEB 13 1995

....A SEVERE THUNDERSTORM WATCH IS IN EFFECT UNTIL 1 AM EST FOR
             PALM BEACH COUNTY....

AT 935 PM EST WEATHER SERVICE RADAR SHOWED A LARGE AREA OF RAIN
WITH EMBEDED THUNDERSTORMS. TWO OF THE THUNDERSTORMS WERE SEVERE
AND THEY WERE LOCATED OVER WESTERN GLADES COUNTY AND OVER TEH ST LUCIE
COUNTY COASTAL WATERS. THESE THUNDERSTORMS WERE MOVING EAST AT 20 MILES
AN HOUR.
THE AREA OF RAIN WAS 50 MILES WIDE AND EXTENDED FROM CHARLOTTE HARBOR
TO VERO BEACH THEN OUT INTO THE ATLANTIC 150 MILES. THE NORTHERN
EXTENT OF THE RAIN WAS A LINE FROM FORT MEADE TO MELBOURNE WHILE
THE SOUTHERN EXTENT WAS FROM FORT MYERS TO HOBE SOUND.
RAIN AND THUNDERSTORMS WERE ALSO WIDESPREAD OVER THE BAHAMAS AND THE
GREAT BAHAMA BANK.

MOVEMENT WAS EAST AT 20 MILES AN HOUR.

REMEMBER...A SEVERE THUNDERSTORM WATCH MEANS THAT CONDITIONS ARE
FAVORABLE FOR SEVERE THUNDERSTORMSIN...OR CLOSE TO...THE
WATCH AREA.

SEVERE THUNDERSTORMS PRODUCE DAMAGING WIND IN EXCESS OF
55 MPH...DESTRUCTIVE HAIL...DEADLY LIGHTNING...AND VERY HEAVY
RAINFALL.

STAY TUNED TO NOAA WEATHER RADIO AND...OR...LOCAL TV AND RADIO
STATIONS FOR WARNINGS SHOULD THEY BE REQUIRED.

NNNN

The office that day

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

Issued	Product	Office	Counties	Lasted
Feb 13, 9:07 PM EST	Severe Thunderstorm Warning	MFL	Glades	68 min
Feb 13, 9:55 PM EST	Severe Thunderstorm Warning	MFL	Glades	20 min
Feb 13, 10:00 PM EST	Severe Thunderstorm Warning	MFL	Collier	45 min

Nearby

Severe Thunderstorm Warnings in Florida, 1995 Every 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.