Alert archive / Florida / Severe Thunderstorm Warnings in 1995

Severe Thunderstorm Warning 13, NWS Tampa Bay, FL

March 18, 1995Polk County, Florida

NWS Tampa Bay, FL issued this severe thunderstorm warning at Mar 18, 1995, 12:53 PM EST for Polk County, Florida. It was in force for 67 min.

The area

The counties it named.

The facts

Issued
Mar 18, 1995, 12:53 PM EST (17:53 UTC)
Expired
Mar 18, 1995, 2:00 PM EST
In force
67 min
Issued by
NWS Tampa Bay, FL
Area
Whole counties

County Polk County, FL

The nearest sounding before it

Tampa Bay, FL (KTBW), launched 12:00Z, 5.9 hours before the alert went out and 74 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, Tampa Bay, FL at 12:00Z on 1995-03-18Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 158 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, Tampa Bay, FL at 12:00Z on 1995-03-18The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 42 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
158 J/kg
Mixed-layer CIN
-50 J/kg
Mixed-layer LCL
972 m above ground
0-6 km bulk shear
34 kt
0-1 km storm-relative helicity
42 m²/s²
0-3 km storm-relative helicity
86 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 
WUUS1 KTBW 181758 RRA
SVRTBW
FLC105-181900-
 
BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE TAMPA BAY AREA RUSKIN FL
1253 PM EST SAT MAR 18 1995
 
THE NATIONAL WEATHER SERVICE IN TAMPA BAY AREA RUSKIN HAS ISSUED A
SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL  200 PM EST
FOR PEOPLE......
 
IN CENTRAL FLORIDA
 
   ...POLK COUNTY
 
STRONG TO SEVERE THUNDERSTORMS WERE DETECTED BY RADAR JUST WEST OF
LAKELAND AND JUST NORTHWEST OF POLK CITY.  THE MOVEMENT WAS TO THE
EAST AT 20 MPH.
 
SEVERE THUNDERSTORMS PRODUCE DAMAGING WIND IN EXCESS OF 55
MPH...DESTRUCTIVE HAIL...DEADLY LIGHTNING...AND VERY HEAVY RAIN.
CARS AND MOBILE HOMES ARE NOT SAFE. IF YOU ARE IN THE PATH OF A
SEVERE THUNDERSTORM MOVE TO A REINFORCED BUILDING.

The office that day

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

IssuedProductOfficeCountiesLasted
Mar 18, 10:32 AM ESTSevere Thunderstorm WarningTBWManatee, Sarasota43 min
Mar 18, 11:14 AM ESTSevere Thunderstorm WarningTBWManatee61 min
Mar 18, 11:55 AM ESTSevere Thunderstorm WarningTBWPasco65 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.