Alert archive / Florida / Severe Thunderstorm Warnings in 1995

Severe Thunderstorm Warning 24, NWS Miami, FL

May 17, 1995Collier County, Florida

NWS Miami, FL issued this severe thunderstorm warning at May 17, 1995, 4:55 PM EDT for Collier County, Florida. It was in force for 65 min.

The area

The counties it named.

The facts

Issued
May 17, 1995, 4:55 PM EDT (20:55 UTC)
Expired
May 17, 1995, 6:00 PM EDT
In force
65 min
Issued by
NWS Miami, FL
Area
Whole counties

County Collier County, FL

The radar

The Miami radar (KAMX), 111 km from the middle of the area, began a volume at 20:56 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

Key West, FL (KEYW), launched 12:00Z, 8.9 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-pSkew-T log-p diagram, Key West, FL at 12:00Z on 1995-05-17Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1358 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 1995-05-17The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -13 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
1358 J/kg
Mixed-layer CIN
-42 J/kg
Mixed-layer LCL
993 m above ground
0-6 km bulk shear
9 kt
0-1 km storm-relative helicity
-13 m²/s²
0-3 km storm-relative helicity
20 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 172058
SVRMIA
FLC021-172200-
 
BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE MIAMI FL
455 PM EDT WED MAY 17 1995
 
THE NATIONAL WEATHER SERVICE IN MIAMI HAS ISSUED A
SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL  600 PM EDT
FOR PEOPLE IN THE FOLLOWING LOCATION......
 
IN SOUTHWEST FLORIDA
 
   ...NORTHERN COLLIER COUNTY
 
AT 450 PM EDT...DOPPLER RADAR AT MIAMI WAS INDICATING A SEVERE
THUNDERSTORM NEAR IMMMOKALEE IN NORTHERN COLLIER COUNTY. THIS
THUNDERSTORM IS DRIFTING SLOWLY SOUTHEAST.
 
 
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 17, 12:14 PM EDT, 4 hours 41 minutes before
FLZ063-066>074-171630-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE MIAMI FL
1230 PM EST WED MAY 17 1995

...STRONG LIGHTNING OCCURRING OVER SOUTHEAST FLORIDA...

THE THUNDERSTORMS DEVELOPING ALONG THE SEABREEZE FRONT OF SOUTHERN
FLORIDA ARE BEING ACCOMPANINED BY FREQUENT CLOUD TO GROUND LIGHTNING
STRIKES.  IF YOU ARE IN THE VICINITY OF THESE THUNDERSTORMS
YOU DO NOT HAVE TO BE DIRECTLY UNDER THE STORMS TO BE A TARGET FOR THESE
LIGHTNING STRIKES.

SINCE IT HAS BEEN A LITTLE WHILE SINCE SOUTH FLORIDA HAS EXPERIENCED
INTENSE LIGHTNING... REMEMBER  LIGHTNING CAN STRIKE MILES FROM THE
ACTUAL THUNDERSTORM. DURING THUNDERSTORMS DO NOT MAKE A TARGET OF
YOURSELF...DO NOT USE ELECTRICIAL APPLIANCES... DO NOT USE THE TELEPHONE
... TO NOT ALLOW YOURSELF TO BE A TARGET BY BEING THE HIGHEST OBJECT
NEARBY.

The office that day

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

IssuedProductOfficeCountiesLasted
May 16, 9:00 PM EDTSevere Thunderstorm WarningMFLGlades45 min

Nearby

Severe Thunderstorm Warnings in Florida, 1995Every 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; radar from the NEXRAD Level II archive.