Alert archive / Florida / Flash Flood Warnings in 1998

Flash Flood Warning 2, NWS Tampa Bay, FL

January 24, 1998Manatee County, Florida

NWS Tampa Bay, FL issued this flash flood warning at Jan 24, 1998, 2:00 AM EST for Manatee County, Florida. It was in force for 8 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
Jan 24, 1998, 2:00 AM EST (07:00 UTC)
Expired
Jan 24, 1998, 9:50 AM EST
In force
8 hr
Issued by
NWS Tampa Bay, FL
Area
Whole counties

County Manatee County, FL

The radar

The Tampa radar (KTBW), 26 km from the middle of the area, began a volume at 07:02 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, 7.0 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-pSkew-T log-p diagram, Tampa Bay, FL at 00:00Z on 1998-01-24Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 154 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 00:00Z on 1998-01-24The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 60 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
154 J/kg
Mixed-layer CIN
-57 J/kg
Mixed-layer LCL
724 m above ground
0-6 km bulk shear
49 kt
0-1 km storm-relative helicity
60 m²/s²
0-3 km storm-relative helicity
25 m²/s²
Significant tornado parameter
0.1
Supercell composite
0.6

Open this sounding in Storm Lab

The text

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

000 
TTAA00 KTBW 240711 COR
FFWTBW
FLC081-241450-

BULLETIN - EAS ACTIVATION REQUESTED
FLOOD WARNING
NATIONAL WEATHER SERVICE TAMPA BAY AREA - RUSKIN FL
200 AM EST SAT JAN 24 1998

THE NATIONAL WEATHER SERVICE HAS REISSUED A...FLOOD WARNING
EFFECTIVE UNTIL 950 AM EST FOR

...MANATEE COUNTY

AT 130 AM NUMEROUS RESIDENTIAL HOMES IN LOWLAND AREAS OF EASTERN
MANATEE COUNTY REMAIN EMPACTED BY THE HEAVY RAINS WHICH OCCURED
YESTERDAY. WITH THE ALREADY SATURATED SOIL CONDITIONS...STAHNDING WATER
IN ANY FLOODED AREAS WILL BE SLOW TO SOAK INTO THE GROUND OR DRAIN
OFF. MOTORIST SHOULD USE CAUTION ON FLOODED ROADWAYS. RESTRICT CHILDREN
FROM FLOODED AREAS. BY LATE SATURDAY MORNING THESE FLOODING CONDITIONS
SHOULD IMPROVE.

The office that day

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

IssuedProductOfficeCountiesLasted
Jan 23, 7:31 PM ESTFlash Flood WarningTBWManatee6 hr

Nearby

Flash Flood Warnings in Florida, 1998Every flash flood warning in 1998

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.