Alert archive / Florida / Severe Thunderstorm Warnings in 1994

Severe Thunderstorm Warning 49, NWS Tampa Bay, FL

June 9, 1994Polk County, Florida

NWS Tampa Bay, FL issued this severe thunderstorm warning at Jun 9, 1994, 3:45 PM EDT for Polk County, Florida. It was in force for 60 min.

The area

The counties it named.

The facts

Issued
Jun 9, 1994, 3:45 PM EDT (19:45 UTC)
Expired
Jun 9, 1994, 4:45 PM EDT
In force
60 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, 7.8 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 1994-06-09Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 2743 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 1994-06-09The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 84 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
2743 J/kg
Mixed-layer CIN
0 J/kg
Mixed-layer LCL
519 m above ground
0-6 km bulk shear
17 kt
0-1 km storm-relative helicity
84 m²/s²
0-3 km storm-relative helicity
79 m²/s²
Significant tornado parameter
0.0
Supercell composite
3.4

Open this sounding in Storm Lab

The text

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

000 
WUUS1 KTBW 091948 RRA
SVRTBW
FLC105-092045-
 
BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE TAMPA BAY AREA RUSKIN FL
345 PM EDT THU JUN 9 1994
 
THE NATIONAL WEATHER SERVICE IN TAMPA BAY AREA RUSKIN HAS ISSUED A
SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL 445 PM EDT
FOR PEOPLE......
 
IN CENTRAL FLORIDA
 
   ...SOUTHERN POLK COUNTY
 
A SEVERE THUNDERSTORM WAS DETECTED BY RADAR JUST SOUTH OF BARTOW...ALONG
US HIGHWAY 17.  THE THUNDERSTORM WAS MOVING TO THE EAST...SOUTHEAST AT 2MPH.
 
SEVERE THUNDERSTORMS PRODUCE DAMAGING WIND IN EXCESS OF 55 MPH...DESTRUC
VHAIL...DEADLY LIGHTNING...AND VERY HEAVY RAIN.  CARS AND MOBILE HOMES ARNOT SAFE. IF YOU ARE IN THE PATH OF A SEVERE THUNDERSTORM MOVE TO A
REINFORCED BUILDING.

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, Jun 9, 11:22 AM EDT, 4 hours 23 minutes before
FLZ039-042-043-048>052-091625-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE RUSKIN FL
1122 AM EDT THU JUN 9 1994

    ...STRONG GUSTY WINDS OCCURRING OVER WEST CENTRAL FLORIDA...

AT 1115 AM...NATIONAL WEATHER SERVICE RADAR INDICATED A BAND OF
SHOWERS AND ISOLATED THUNDERSTORMS EXTENDED ACROSS THE PENINSULA
FROM WESTERN VOLUSIA COUNTY SOUTHWEST TO NORTHERN HILLSBOROUGH
COUNTY.  THESE SHOWERS AND THUNDERSTORMS MAY PRODUCE STRONG GUSTY
WINDS OVER THE NEXT FEW HOURS.

RESIDENTS OF CENTRAL FLORIDA ARE CAUTIONED TO BE AWARE OF THESE
SOME OF THESE STORMS MAY CONTAIN SMALL HAIL...
GUSTY WINDS... FREQUENT LIGHTNING AND VERY HEAVY DOWNPOURS OF RAIN.
Special weather statement, Jun 9, 11:26 AM EDT, 4 hours 19 minutes before
FLZ039-042-043-048>052-091625-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE RUSKIN FL
1122 AM EDT THU JUN 9 1994

    ...STRONG GUSTY WINDS OCCURRING OVER WEST CENTRAL FLORIDA...

AT 1115 AM...NATIONAL WEATHER SERVICE RADAR INDICATED A BAND OF
SHOWERS AND ISOLATED THUNDERSTORMS EXTENDED ACROSS THE PENINSULA
FROM WESTERN VOLUSIA COUNTY SOUTHWEST TO NORTHERN HILLSBOROUGH
COUNTY.  THESE SHOWERS AND THUNDERSTORMS MAY PRODUCE STRONG GUSTvY
WINDS OVER THE NEXT FEW HOURS.

RESIDENTS OF CENTRAL FLORIDA ARE CAUTIONED TO BE AWARE OF THESE
THUNDERSTORMS AS SOME OF THESE STORMS MAY CONTAIN SMALL HAIL...
GUSTY WINDS... FREQUENT LIGHTNING AND VERY HEAVY DOWNPOURS OF RAIN.
Special weather statement, Jun 9, 3:19 PM EDT, 26 minutes before
FLZ051-092015-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE TAMPA BAY AREA RUSKIN FL
319 PM EDT THU JUN 9 1994

              ...FUNNEL CLOUDS OVER APPOLO BEACH...

REPORTS HAVE BEEN RECEIVED OF FUNNEL CLOUDS OVER THE APPOLO BEACH AREA
MOVING EAST AT 20 MILES AN HOUR.

OTHER FUNNEL CLOUDS COULD FORM THIS AFTERNOON FROM THUNDERSTORMS IN THE
AREA AND RESIDENTS ARE URGED TO KEEP A SHARP WEATHER EYE OUT AND BE
PREPARED TO MOVE TO A PLACE OF SAFTY IF THREATENING WEATHER APPROACHES.

&
Special weather statement, Jun 9, 3:19 PM EDT, 26 minutes before
FLZ051-092015-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE TAMPA BAY AREA RUSKIN FL
319 PM EDT THU JUN 9 1994

              ...FUNNEL CLOUDS OVER APPOLO BEACH...

REPORTS HAVE BEEN RECEIVED OF FUNNEL CLOUDS OVER THE APPOLO BEACH AREA
MOVING EAST AT 20 MILES AN HOUR.

OTHER FUNNEL CLOUDS COULD FORM THIS AFTERNOON FROM THUNDERSTORMS IN THE
AREA AND RESIDENTS ARE URGED TO KEEP A SHARP WEATHER EYE OUT AND BE
PREPARED TO MOVE TO A PLACE OF SAFTY IF THREATENING WEATHER APPROACHES.

&
Special weather statement, Jun 9, 3:30 PM EDT, 15 minutes before
FLZ039-042-043-046>052-055>057-060>062-065-082235-

SPECIAL WEATHER STATEMENT AND RADAR SUMMARY
NATIONAL WEATHER SERVICE RUSKIN FL
330 PM EDT THU JUN 9 1994

    ...THUNDERSTORMS DEVELOPING OVER WEST CENTRAL FLORIDA...

NEWLY DEVELOPED THUNDERSTORMS OVER WEST CENTRAL FLORIDA HAVE GENERATED
REPORTS OF FUNNEL CLOUDS IN THE VICINITY OF APPOLO BEACH DURING THE PAST
HOUR.  THUNDERSTORMS DEVELOPING ALONG THE SEA BREEZE THIS AFTERNOON COULD
RESULT IN OTHER FUNNEL CLOUDS DEVELOPING AS THESE STORMS MOVE INLAND OVER
THE HOT INTERIOR SECTIONS.

ELSEWHERE...OTHER SHOWERS AND THUNDERSTORMS WERE SCATTERED FROM THE NORTHEAST
GULF WEST OF CRYSTAL RIVER AND ALONG THE COASTAL SECTIONS OF LEVY AND CITRUS
COUNTIES.  ALSO OVER THE CENTRAL PORTION OF THE STATE FROM EASTERN
HILLSBOROUGH COUNTY ACROSS THE STATE TO THE EAST COAST BETWEEN VERO BEACH
AND DAYTONA BEACH.

MOVEMENT WAS EASTERLY AT 15 MILES AN HOUR.
Special weather statement, Jun 9, 3:45 PM EDT, 0 minutes before
FLZ039-042-043-046>052-055>057-060>062-065-082235-

SPECIAL WEATHER STATEMENT AND RADAR SUMMARY
NATIONAL WEATHER SERVICE RUSKIN FL
330 PM EDT THU JUN 9 1994

    ...THUNDERSTORMS DEVELOPING OVER WEST CENTRAL FLORIDA...

NEWLY DEVELOPED THUNDERSTORMS OVER WEST CENTRAL FLORIDA HAVE GENERATED
REPORTS OF FUNNEL CLOUDS IN THE VICINITY OF APPOLO BEACH DURING THE PAST
HOUR.  THUNDERSTORMS DEVELOPING ALONG THE SEA BREEZE THIS AFTERNOON COULD
RESULT IN OTHER FUNNEL CLOUDS DEVELOPING AS THESE STORMS MOVE INLAND OVER
THE HOT INTERIOR SECTIONS.

ELSEWHERE...OTHER SHOWERS AND THUNDERSTORMS WERE SCATTERED FROM THE NORTHEAST
GULF WEST OF CRYSTAL RIVER AND ALONG THE COASTAL SECTIONS OF LEVY AND CITRUS
COUNTIES.  ALSO OVER THE CENTRAL PORTION OF THE STATE FROM EASTERN
HILLSBOROUGH COUNTY ACROSS THE STATE TO THE EAST COAST BETWEEN VERO BEACH
AND DAYTONA BEACH.

MOVEMENT WAS EASTERLY AT 15 MILES AN HOUR.

Nearby

Severe Thunderstorm Warnings in Florida, 1994Every severe thunderstorm warning in 1994

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.