Alert archive / Florida / Tornado Warnings in 1993

Tornado Warning 33, NWS Tampa Bay, FL

August 10, 1993Manatee County, Florida

NWS Tampa Bay, FL issued this tornado warning at Aug 10, 1993, 4:20 PM EDT for Manatee County, Florida. It was in force for 40 min. 1 report came from inside the area while it was in force.

The area

The counties it named, with what was reported inside it.

The facts

Issued: Aug 10, 1993, 4:20 PM EDT (20:20 UTC)
Expired: Aug 10, 1993, 5:00 PM EDT
In force: 40 min
Issued by: NWS Tampa Bay, FL
Area: Whole counties

County Manatee County, FL

What was reported inside it

Time	Report	Where	Remark
Aug 10, 4:31 PM EDT	Tornado F0	Longboat Key, FL	A tornado touched down briefly on Longboat Key.

NCEI Storm Data entries that began inside the alert's area while it was in force. Before 2003 the local storm report archive is thin, so this is the record of what happened rather than what was phoned in. Storm Data before 1996 records only tornadoes, thunderstorm wind and hail.

The nearest sounding before it

Tampa Bay, FL (KTBW), launched 12:00Z, 8.3 hours before the alert went out and 26 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: 1208 J/kg
Mixed-layer CIN: -36 J/kg
Mixed-layer LCL: 787 m above ground
0-6 km bulk shear: 8 kt
0-1 km storm-relative helicity: -37 m²/s²
0-3 km storm-relative helicity: -5 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 KTBW 102024
TORTBW
FLC081-102100-
 
BULLETIN - EBS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE TAMPA BAY AREA RUSKIN FL
420 PM EDT TUE AUG 10 1993
 
THE NATIONAL WEATHER SERVICE IN TAMPA BAY AREA RUSKIN HAS ISSUED A
TORNADO WARNING EFFECTIVE UNTIL  500 PM EDT
FOR PEOPLE......
 
IN WEST CENTRAL FLORIDA
 
   ...WESTERN MANATEE COUNTY
 
AND ADJACENT COASTAL WATERS
INCLUDING THE BAY AND INLAND WATERS
 
 
A WATERSPOUT WAS SIGHTED OFF BRADENTON BEACH. A TORNADO WAS OBSERVED
NEAR BEERIDGE IN SARASOTA COUNTY MOVING NORTH TOWARDS MANATEE COUNTY.
RADAR INDICATIONS ARE THAT A LARGE TORNADO WILL MOVE ACROSS WESTERN
MANATEE COUNTY DURING THE NEXT 40 MINUTES.
 
IF YOU ARE IN THE PATH OF A TORNADO MOVE TO A REINFORCED SHELTER
TO A SMALL INTERIOR ROOM ON THE LOWEST FLOOR. AVOID WINDOWS.
ABANDON CARS AND MOBILE HOMES FOR A REINFORCED BUILDING OR GET
INTO A DITCH OR CULVERT.
 
MARINE INTERESTS IN THESE WATERS SHOULD AVOID THESE STORMS AND
SEEK SAFE HARBOR.
 
THIS IS A DANGEROUS STORM. TAKE COVER IMMEDIATELY!
 
IF YOU SEE A TORNADO... WATERSPOUT... HAIL OR DAMAGING WIND...
CALL THE WEST CENTRAL AND SOUTHWEST FLORIDA SEVERE WEATHER LINE AT
1-800-282-5584.
 
 
 
&

What forecasters said that day

The local office's own words before this tornado warning went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.

In the hours before

Local storm report, Aug 10, 2:38 PM EDT, 1 hour 42 minutes before

STORM REPORT CORRECTED
NATIONAL WEATHER SERVICE TAMPA BAY-RUSKIN, FL
238 PM EDT TUE AUG 10 1993

DATE    TIME      LOCATION
8/9/93  1800 EDT  CITRUS COUNTY, CRYSTAL RIVER, US19 AND HWY 44W
                  TORNADO, F0, SMALL METAL STORAGE BUILDING LIFTED UP AND
                  THROWN ONTO TELEPHONE WIRES, EYEWITNESS DID SEE FUNNEL
                  DESCEND. LIGHTNING DAMAGE, 3 BRUSH FIRES STARTED IN
                  COUNTY, ACREAGE BURNED AND TIME OF OCCURRENCE UNKNOWN.

8/9/93  ???? EDT  CITRUS COUNTY, CRYSTAL RIVER, PLANTATION INN GOLF COURSE
                  WIND DAMAGE, APPROX 20 TREES KNOCKED DOWN. DIAMETER AND
                  TIME OF OCCURRENCE UNCERTAIN. PRIVATE CITIZEN ESTIMATED
                  AROUND 1900 EDT.

Local storm report, Aug 10, 2:47 PM EDT, 1 hour 33 minutes before

STORM REPORT CORRECTED
NATIONAL WEATHER SERVICE TAMPA BAY-RUSKIN, FL
238 PM EDT TUE AUG 10 1993

DATE    TIME      LOCATION
8/9/93  1800 EDT  CITRUS COUNTY, CRYSTAL RIVER, US19 AND HWY 44W
                  TORNADO, F0, SMALL METAL STORAGE BUILDING LIFTED UP AND
                  THROWN ONTO TELEPHONE WIRES, EYEWITNESS DID SEE FUNNEL
                  DESCEND. LIGHTNING DAMAGE, 3 BRUSH FIRES STARTED IN
                  COUNTY, ACREAGE BURNED AND TIME OF OCCURRENCE UNKNOWN.

8/9/93  ???? EDT  CITRUS COUNTY, CRYSTAL RIVER, PLANTATION INN GOLF COURSE
                  WIND DAMAGE, APPROX 20 TREES KNOCKED DOWN. DIAMETER AND
                  TIME OF OCCURRENCE UNCERTAIN. PRIVATE CITIZEN ESTIMATED
                  AROUND 1900 EDT.

The office that day

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

Issued	Product	Office	Counties	Lasted
Aug 10, 2:48 PM EDT	Severe Thunderstorm Warning	TBW	DeSoto	27 min
Aug 10, 2:55 PM EDT	Severe Thunderstorm Warning	TBW	Highlands	65 min
Aug 10, 3:42 PM EDT	Severe Thunderstorm Warning	TBW	Sarasota	63 min
Aug 10, 4:07 PM EDT	Tornado Warning	TBW	Sarasota	23 min
Aug 10, 4:20 PM EDT	Severe Thunderstorm Warning	TBW	Lee	40 min
Aug 10, 4:29 PM EDT	Severe Thunderstorm Warning	TBW	Hillsborough, Pinellas	61 min
Aug 10, 4:55 PM EDT	Tornado Warning	TBW	Pinellas	35 min

Nearby

Tornado Warnings in Florida, 1993 Every tornado warning in 1993 Tornadoes in 1993

Sources

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; verification from NCEI's Storm Data; the sounding from the Mesonet's radiosonde archive.