Alert archive / Florida / Flash Flood Warnings in 1995

Flash Flood Warning 1, NWS Tampa Bay, FL

August 25, 1995Lee County, Florida

NWS Tampa Bay, FL issued this flash flood warning at Aug 25, 1995, 12:35 AM EDT for Lee County, Florida. It was in force for 5 hr.

The area

The counties it named.

The facts

Issued
Aug 25, 1995, 12:35 AM EDT (04:35 UTC)
Expired
Aug 25, 1995, 6:00 AM EDT
In force
5 hr
Issued by
NWS Tampa Bay, FL
Area
Whole counties

County Lee County, FL

The radar

The Tampa radar (KTBW), 132 km from the middle of the area, began a volume at 04:35 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

Tampa Bay, FL (KTBW), launched 00:00Z, 4.6 hours before the alert went out and 132 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 00:00Z on 1995-08-25Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 2078 joules per kilogram.LCLEL10008507005003002001001 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 00:00Z on 1995-08-25The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -20 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
2078 J/kg
Mixed-layer CIN
-1 J/kg
Mixed-layer LCL
619 m above ground
0-6 km bulk shear
15 kt
0-1 km storm-relative helicity
-20 m²/s²
0-3 km storm-relative helicity
18 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 250442 COR
FFWTBW
FLC071-251000-

BULLETIN - EBS ACTIVATION REQUESTED
FLOOD WARNING...CORRECTED FOR EXPIRATION TIME
NATIONAL WEATHER SERVICE TAMPA BAY AREA RUSKIN FL
1235 AM EDT FRI AUG 25 1995

THE NATIONAL WEATHER SERVICE IN TAMPA BAY AREA RUSKIN HAS ISSUED A
FLOOD WARNING EFFECTIVE UNTIL  600 AM  EDT FOR PEOPLE IN THE
FOLLOWING LOCATION...

IN SOUTHWEST FLORIDA

   ...LEE COUNTY

AT 1200 AM...NATIONAL WEATHER SERVICE DOPPLER RADAR WAS SHOWING BANDS OF
SHOWERS AND SOME THUNDERSTORMS CONTINUING TO DEVELOP OVER MANY PORTIONS
OF SOUTHWEST FLORIDA...ESPECIALLY FROM PUNTA GORDA SOUTHWARD TO NAPLES.

THE HEAVIEST RAINFALL HAS BEEN OCCURING OVER WESTERN PORTIONS OF THE
COUNTY INCLUDING SANIBEL ISLAND...WHERE OVER 13 INCHES OF RAINFALL HAVE
FALLEN IN THE LAST 24 HOURS AND THE CAPE CORAL AREA...WHERE THERE HAS
BEEN BETWEEN 7 TO 8 INCHES OF RAIN IN THE LAST 24 HOURS.

TWO TO FOUR INCHES OF ADDITIONAL RAINFALL IS POSSIBLE THROUGH THE REST OF
THE EARLY MORNING HOURS. HOURLY RAINFALL ESTIMATES FROM THE DOPPLER RADAR
CURRENTLY SHOW NEAR ONE INCH JUST OFFSHORE...WITH THIS AREA MOVING
EASTWARD TOWARD THE LEE COUNTY COAST.

BE ESPECIALLY CAUTIOUS AT NIGHT WHEN IT IS HARDER TO RECOGNIZE
THE DANGERS OF FLOODS. IF FLOODING IS OBSERVED...ACT QUICKLY.
MOVE UP TO ESCAPE FLOOD WATERS.  DO NOT STAY IN AREAS SUBJECT
TO FLOODING WHEN WATER BEGINS RISING.

DO NOT DRIVE YOUR VEHICLE INTO AREAS WHERE THE WATER COVERS THE
ROADWAY.  THE WATER DEPTH MAY BE TOO GREAT TO ALLOW YOUR CAR TO
CROSS SAFELY.  VEHICLES CAUGHT IN RISING WATER SHOULD BE
ABANDONED QUICKLY.  MOVE TO HIGHER GROUND.

A FLOOD WARNING MEANS THAT FLOODING IS OCCURRING OR IS IMMINENT.
MOST FLOOD DEATHS OCCUR IN AUTOMOBILES.  DO NOT ATTEMPT TO CROSS
BRIDGES...DIPS...OR LOW SPOTS IF WATER COVERS THE ROADWAY. NEVER
TRY TO CROSS A FLOWING STREAM...EVEN A SMALL ONE...ON FOOT. TO
ESCAPE RISING WATER MOVE UP TO HIGHER GROUND.

MORALES

What forecasters said that day

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

NWS Tampa Bay, FL wrote its last area forecast discussion before this flash flood warning went out at Aug 24, 8:19 PM EDT, 4 hours 16 minutes earlier.

Area forecast discussion, Aug 24, 8:19 PM EDT, 4 hours 16 minutes before
AREA FORECAST DISCUSSION CORRECTED FOR GROUPINGS AGAIN...
NATIONAL WEATHER SERVICE TAMPA BAY-RUSKIN, FL
818 PM EDT THU AUG 24 1995

LATEST INDICATIONS FROM 88-D SHOWS THAT CENTER OF JERRY MAYBE DRIFTING
EASTWARD IN HERNANDO COUNTY. WILL WAIT TO SEE WHAT NHC SAYS ABOUT THIS
LATEST TREND. HEAVIEST RAINFALL CONTINUES TO BE OVER SW FA...WHERE
RADAR INDICATING 1HR RAINFALL AMTS BACK UP AROUND ONE INCH. FLOOD
WARNING WILL REMAIN IN EFFECT FOR LEE COUNTY THROUGH AT LEAST
MIDNIGHT...AND MAY HAVE TO BE EXTENED. SW WINDS STARTING TO INCRS TO
NEAR 15 MPH...WITH SOME HIGHER GUST FROM TPA SOUTH. WILL CHNG WIND DIR
TO SW FOR GROUPS 2 AND 4 AND INCR SPDS. SFC OBS SHOWING GOOD CONFLUENT
BNDRY IN CENTRAL FA BETWEEN SW AND S FLOW...WHICH COULD BE FOCUS FOR
HEAVIER RAINFALL TONIGHT. ALL N ALL...NOT MUCH CHNG EXPECTED FOR
CURRENT PACKAGE AS JERRY SEEMINGLY STATIONARY. THANKS MIA FOR COORD.

@1 LEVY CITRUS
@2 HERNANDO PASCO
@3 PINELLAS HILLSBOROUGH MANATEE SARASOTA
@4 SUMTER POLK HARDEE DESOTO HIGHLANDS
@5 CHARLOTTE LEE

MORALES

The office that day

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

IssuedProductOfficeCountiesLasted
Aug 25, 11:55 AM EDTTornado WarningTBWHillsborough35 min

Nearby

Flash Flood Warnings in Florida, 1995Every flash flood 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.