Alert archive / Florida / Flash Flood Warnings in 1997

Flash Flood Warning 1, NWS Melbourne, FL

December 13, 1997Osceola County, Florida

NWS Melbourne, FL issued this flash flood warning at Dec 13, 1997, 6:45 AM EST for Osceola County, Florida. It was in force for 3 hr. No storm report in the archive falls inside the area while it was in force.

The area

The counties it named.

The facts

Issued
Dec 13, 1997, 6:45 AM EST (11:45 UTC)
Expired
Dec 13, 1997, 9:40 AM EST
In force
3 hr
Issued by
NWS Melbourne, FL
Area
Whole counties

County Osceola County, FL

The nearest sounding before it

Cape Canaveral, FL (KXMR), launched 00:00Z, 11.8 hours before the alert went out and 78 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, Cape Canaveral, FL at 00:00Z on 1997-12-13Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 156 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, Cape Canaveral, FL at 00:00Z on 1997-12-13The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 72 square meters per square second.1939587897Sfc1 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
156 J/kg
Mixed-layer CIN
-55 J/kg
Mixed-layer LCL
709 m above ground
0-6 km bulk shear
41 kt
0-1 km storm-relative helicity
72 m²/s²
0-3 km storm-relative helicity
189 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.2

Open this sounding in Storm Lab

The text

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

000 
TTAA00 KMLB 131145
FFWMLB
FLC097-131440-

BULLETIN - EAS ACTIVATION REQUESTED
FLOOD WARNING
NATIONAL WEATHER SERVICE MELBOURNE FL
645 AM EST SAT DEC 13 1997

THE NATIONAL WEATHER SERVICE IN MELBOURNE FL HAS ISSUED A
FLOOD WARNING EFFECTIVE UNTIL 940 AM EST
FOR PEOPLE IN THE FOLLOWING LOCATION...

IN EAST CENTRAL FLORIDA

   ...OSCEOLA COUNTY
 
AT 630 AM THIS MORNING...OSCEOLA EMERGENCY MANAGEMENT REPORTED
FLOODING CONTINUES IN THE SMALL LAKE TOHO REGION OF OSCEOLA COUNTY.
HOMES IN THE BLACKBERRY SUBDIVISION HAVE BEEN EVACUATED DUE TO THE
HIGH WATER. FLOODING HAS ALSO BEEN REPORTED IN THE TOWN OF
KISSIMMEE.

DOPPLER RADAR IN TAMPA BAY INDICATED AT 630 AM THAT ANOTHER LARGE
AREA OF MODERATE TO OCCASIONALLY HEAVY RAIN HAS DEVELOPED JUST
OFFSHORE OF WEST CENTRAL FLORIDA AND IS MOVING NORTHEAST AT 40 MPH.
THIS AREA OF MODERATE TO OCCASSIONALLY HEAVY RAIN WILL MOVE INTO
OSCEOLA COUNTY AFTER 8 AM THIS MORNING.

DUE TO THE CONTINUING STRONG SOUTHWEST FLOW IN THE MIDDLE
ATMOSPHERE...MORE MODERATE TO HEAVY RAIN WILL AFFECT OSCEOLA COUNTY
LATER THIS AFTERNOON AND INTO TONIGHT WHICH WILL ONLY MAKE THE
FLOODING WORSE.

RESIDENTS WHO LIVE IN FLOOD PRONE AREAS IN OSCEOLA COUNTY SHOULD
TAKE NECESSARY  PRECAUTIONS DUE TO THE CONTINUED HEAVY RAIN THREAT.
 

&

The office that day

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

IssuedProductOfficeCountiesLasted
Dec 13, 4:02 AM ESTSevere Thunderstorm WarningMLBIndian River58 min
Dec 13, 9:36 AM ESTFlash Flood WarningMLBOsceola4 hr
Dec 13, 1:41 PM ESTFlash Flood WarningMLBOsceola17 hr

Nearby

Flash Flood Warnings in Florida, 1997Every flash flood warning in 1997

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.