Alert archive / Florida / Flash Flood Warnings in 2003

Flash Flood Warning 3, NWS Tampa Bay, FL

June 20, 2003Citrus County, Florida

NWS Tampa Bay, FL issued this flash flood warning at Jun 20, 2003, 7:45 AM EDT for Citrus County, Florida. It was in force for 4 hr. No storm report in the archive falls inside the area while it was in force.

The area

The outline as issued.

The facts

Issued
Jun 20, 2003, 7:45 AM EDT (11:45 UTC)
Expired
Jun 20, 2003, 12:00 PM EDT
In force
4 hr
Issued by
NWS Tampa Bay, FL
Area
Counties, with a storm outline in the text

County Citrus County, FL

The nearest sounding before it

Tampa Bay, FL (KTBW), launched 00:00Z, 11.8 hours before the alert went out and 128 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 2003-06-20Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 373 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 2003-06-20The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 53 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
373 J/kg
Mixed-layer CIN
-54 J/kg
Mixed-layer LCL
906 m above ground
0-6 km bulk shear
20 kt
0-1 km storm-relative helicity
53 m²/s²
0-3 km storm-relative helicity
34 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.9

Open this sounding in Storm Lab

The text

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

000 
WGUS52 KTBW 201148
FFWTBW
FLC017-201600-

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE TAMPA BAY AREA - RUSKIN FL
745 AM EDT FRI JUN 20 2003

THE NATIONAL WEATHER SERVICE IN RUSKIN HAS ISSUED A

* FLASH FLOOD WARNING FOR...
  CITRUS COUNTY IN FLORIDA.

  FLOODING WILL AFFECT THE FOLLOWING CITIES.
  INVERNESS.
  HOMOSASSA SPRINGS.
  CRYSTAL RIVER.
  BEVERLY HILLS.

* UNTIL 1200 PM EDT

* AT 745 AM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED   
TORRENTIAL RAINS OF TWO TO FOUR INCHES PER HOUR.

AT 745 AM EDT...LAW ENFORCEMENT OFFICIALS ALSO REPORTED SOME MINOR 
ROAD CLOSERS WITH MAJOR ROADS NEAR FLOODING.

RADAR TRENDS CONTINUE TO SHOW SHOWERS AND THUNDERSTORMS REDEVELOPING 
AND MOVING OVER CITRUS COUNTY.

EXCESSIVE RUNOFF WILL CAUSE FLOODING OF LOW LYING AREAS AND
INTERSECTIONS. POOR DRAINAGE AREAS ARE MOST AT RISK. DO NOT DRIVE 
THROUGH FLOODED ROADS.

EXCESSIVE RUNOFF WILL CAUSE FLOODING OF SMALL CREEKS AND STREAMS...
AND SOME COUNTRY ROADS. FARMLAND ALONG STREAM BANKS WILL BE
INUNDATED. MOVE TO HIGHER GROUND.

DONT BECOME A STATISTIC. TURN AROUND...DONT DROWN

&&

LAT...LON 2897 8232 2880 8223 2870 8229 2870 8266
          2902 8273

$$

25

The office that day

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

IssuedProductOfficeCountiesLasted
Jun 20, 11:52 AM EDTFlash Flood WarningTBWCitrus3 hr
Jun 20, 12:15 PM EDTFlash Flood WarningTBWLevy3 hr
Jun 20, 3:00 PM EDTFlash Flood WarningTBWCitrus, Levy3 hr
Jun 20, 4:59 PM EDTTornado WarningTBWPinellas31 min
Jun 20, 5:17 PM EDTSpecial Marine WarningTBW43 min

Nearby

Flash Flood Warnings in Florida, 2003Every flash flood warning in 2003

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.