Alert archive / Florida / Flash Flood Warnings in 2006

Flash Flood Warning 2, NWS Tampa Bay, FL

February 3, 2006Hillsborough County, Florida

NWS Tampa Bay, FL issued this flash flood warning at Feb 3, 2006, 12:19 PM EST for Hillsborough County, Florida. It was in force for 116 min. No storm report in the archive falls inside the area while it was in force.

The area

The outline as issued.

The facts

Issued
Feb 3, 2006, 12:19 PM EST (17:19 UTC)
Expired
Feb 3, 2006, 2:15 PM EST
In force
116 min
Issued by
NWS Tampa Bay, FL
Area
Counties, with a storm outline in the text

County Hillsborough County, FL

The radar

The Tampa radar (KTBW), 26 km from the middle of the area, began a volume at 17:22 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.

Did it verify

Not verified. The Iowa Environmental Mesonet's Cow found no qualifying storm report inside this flash flood warning while it was in force. That is not proof nothing happened: reports are thin where few people live.

Cow counts a report within 15 km of the polygon while the warning was in force: a tornado for a tornado warning; hail of 1 inch or more, a gust of 58 mph or more or wind damage for a severe thunderstorm warning; a flash flood report for a flash flood warning.

The nearest sounding before it

Tampa Bay, FL (KTBW), launched 12:00Z, 5.3 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-pSkew-T log-p diagram, Tampa Bay, FL at 12:00Z on 2006-02-03Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1253 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 12:00Z on 2006-02-03The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 240 square meters per square second.19395878Sfc1 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
1253 J/kg
Mixed-layer CIN
-16 J/kg
Mixed-layer LCL
637 m above ground
0-6 km bulk shear
49 kt
0-1 km storm-relative helicity
240 m²/s²
0-3 km storm-relative helicity
247 m²/s²
Significant tornado parameter
1.8
Supercell composite
8.0

Open this sounding in Storm Lab

The text

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

000 
WGUS52 KTBW 031722
FFWTBW
FLC057-031915-

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE TAMPA BAY AREA - RUSKIN FL
1219 PM EST FRI FEB 3 2006

THE NATIONAL WEATHER SERVICE IN RUSKIN HAS ISSUED A

* FLASH FLOOD WARNING FOR...
  CENTRAL HILLSBOROUGH COUNTY IN FLORIDA.

  LOCATIONS AFFECTED INCLUDE...
  TEMPLE TERRACE.
  TAMPA.
  BRANDON.
  MACDILL AIR FORCE BASE.

* UNTIL 215 PM EST

* AT 1219 PM EST...A LINE OF THUNDERSTORMS WITH HEAVY RAINFALL IS 
TRAINING OVER CENTRAL HILLSBOROUGH COUNTY. THIS LINE IS SLOWLY 
MOVING NORTHEAST. 

AT 1219 PM EST...SPOTTERS AND LAW ENFORCEMENT OFFICIALS REPORTED 
NUMEROUS FLOODED ROADS...MANY OF WHICH ARE IMPASSABLE. 

A FLASH FLOOD WARNING MEANS THAT FLOODING IS IMMINENT OR OCCURRING. 
MOVE TO HIGHER GROUND NOW. EXCESSIVE RUNOFF WILL CAUSE FLOODING OF 
LOW LYING AREAS AND INTERSECTIONS. POOR DRAINAGE AREAS ARE MOST AT 
RISK. DO NOT DRIVE THROUGH FLOODED ROADS

RESIDENTS LIVING ALONG STREAMS AND CREEKS...SHOULD TAKE PRECAUTIONS 
NOW TO PROTECT LIFE AND PROPERTY. DO NOT ATTEMPT TO CROSS SWIFTLY 
FLOWING WATERS...OR WATERS OF UNKNOWN DEPTH...BY FOOT OR BY 
AUTOMOBILE. SEEK HIGHER GROUND.

MOST FLOOD DEATHS OCCUR IN AUTOMOBILES. DO NOT CROSS FLOODED 
ROADWAYS OR STREAMS. IF NEARING A FLOOD AREA...TURN AROUND AND DRIVE 
TO HIGHER TERRAIN.

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

&&

LAT...LON 2797 8263 2780 8256 2778 8226 2810 8232

$$

17

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 Feb 3, 9:30 AM EST, 2 hours 49 minutes earlier.

Area forecast discussion, Feb 3, 9:30 AM EST, 2 hours 49 minutes before
WEST CENTRAL AND SOUTHWEST FLORIDA FORECAST DISCUSSION...UPDATED
NATIONAL WEATHER SERVICE TAMPA BAY RUSKIN FL
930 AM EST FRI FEB 3 2006

...TORNADO WATCH FROM PASCO COUNTY AND SOUTHWARD INTO LEE COUNTY
UNTIL 300 PM EST...

...SHOWERS AND THUNDERSTORMS MOVING INTO THE AREA FROM THE WEST
COAST WATERS AND WILL CONTINUE TO AFFECT MOST OF CENTRAL AND
SOUTHERN FL THROUGH THE DAY...

.DISCUSSION...A SQUALL LINE SYSTEM DEVELOPED AROUND 730 AM EST OVER
THE NEARSHORE WATERS AND MOVED INLAND OVER WESTERN PASCO AND
NORTHERN HILLSBOROUGH COUNTIES. SPC HAS ISSUED A TORNADO WATCH FROM
PASCO COUNTY SOUTHWARD INTO LEE COUNTY AS THUNDERSTORM ACTIVITY
BECOMES BETTER ORGANIZED OVER THE AREA. A STRONG MCS EARLIER
PROMPTED A SVR ISSUANCE FOR PASCO COUNTY. ADDITIONAL DEVELOPMENT IS
EXPECTED THROUGH THE DAY. SOME MINOR FLOODING IS ALSO POSSIBLE.

THE MAIN FEATURE OF THE EVENT IS DEPICTED BY A PROMINENT SHORTWAVE
AHEAD OF A MAIN UPPER TROUGH WHICH IS PROVIDING ENOUGH DYNAMIC
SUPPORT FOR THUNDERSTORMS TO CONTINUE DEVELOPING OVER THE EASTERN
GULF WATERS...WHICH WILL CONTINUE TO PROPAGATE INLAND THROUGH THE
DAY. FALLING HEIGHTS AHEAD OF THE APPROACHING MAIN FRONT BOUNDARY
AND INCREASING FAVORABLE DYNAMICS ALOFT WHICH WILL COMBINE WITH
ABUNDANT DEEP LAYER ATMOSPHERIC MOISTURE FOR INCREASING CHANCES OF
SEVERE THUNDERSTORMS THROUGH TOMORROW MORNING.

&&

.MARINE...SCEC IN EFFECT UNTIL 700 PM EST FOR ALL MARINE ZONES
EXCEPT THE SOUTHERN MOST NEAR SHORE WATERS. WINDS IN THE 15 TO 20 KT
RANGE WILL CONTINUE TODAY WITH LOCALLY HIGHER SEAS AND WINDS IN THE
VICINITY OF THUNDERSTORMS. WINDS WILL INCREASE...POSSIBLY INTO THE
SCA RANGE OVER THE NORTHERN AND CENTRAL WATERS TONIGHT. OFFSHORE
WATERS MAY REACH THE 20 TO 25 KNOTS. AN SCA WILL PROBABLY BE ISSUED
LATER TODAY.

&&

.AVIATION...MULTI-LAYERED CLOUDS ACROSS THE AREA EXPECTED TODAY WITH
INCREASING SOUTHERLY WINDS AT LOCATIONS NEAR FAVORABLE WATER FETCH
(KPIE/KSPG/KSRQ) GUSTING PERHAPS TOWARD 30KT ONCE AGAIN.
LATER THIS MORNING AND PERHAPS THIS AFTERNOON...ENOUGH LEFTOVER
MOISTURE FROM THE ONGOING CONVECTION TO OUR NORTHWEST COMBINED WITH
INCREASING JET DYNAMICS WILL INCREASE RAIN CHANCES ACROSS THE TAMPA
BAY AND SARASOTA TERMINALS AFTER 15Z...WITH PERHAPS SOME THUNDER IN
THE AFTERNOON.  MORE ORGANIZED RAIN AND WIDESPREAD IFR/MVFR
CONDITIONS ARE EXPECTED THIS EVENING AS THE FRONTAL SYSTEM ORGANIZES
FURTHER.

&&

.TBW WATCHES/WARNINGS/ADVISORIES...
FL...TORNADO WATCH FOR PASCO...HILLSBOROUGH...PINELLAS...POLK...
     MANATEE...HARDEE...HIGHLANDS...DESOTO...SARASOTA...CHARLOTTE
     AND LEE COUNTIES UNTIL 300 PM EST.

GULF WATERS...SMALL CRAFT EXERCISE CAUTION THROUGH THIS EVENING
              BONITA BEACH TO TARPON SPRINGS FROM 20 TO 60 NM
              OFFSHORE AND FROM ENGLEWOOD TO TARPON SPRINGS OUT
              TO 20 NM INCLUDING TAMPA BAY.

              SMALL CRAFT EXERCISE CAUTION BEGINNING THIS AFTERNOON
              ALL OTHER WATERS EXCEPT FOR BONITA BEACH TO
              ENGLEWOOD OUT 20 NM.

&&

AR
Hazardous weather outlook, Feb 3, 5:05 AM EST, 7 hours 14 minutes before
HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE TAMPA BAY AREA - RUSKIN FL
505 AM EST FRI FEB 3 2006

FLZ039-042-043-048-049-031615-
LEVY-CITRUS-SUMTER-HERNANDO-PASCO-
505 AM EST FRI FEB 3 2006

THIS HAZARDOUS WEATHER OUTLOOK IS FOR LEVY...CITRUS...
SUMTER...HERNANDO...AND PASCO COUNTIES.

.DAY ONE...TODAY

A COUPLE OF UPPER LEVEL DISTURBANCES WILL COMBINE WITH WARM AND
MOIST SOUTHERLY FLOW TO PRODUCE LIKELY CHANCES FOR RAIN WITH A
GOOD CHANCE FOR SOME THUNDERSTORMS. A FEW OF THE STORMS MAY BE
STRONG TO SEVERE WITH LARGE HAIL...DAMAGING WINDS...AND AN
ISOLATED TORNADO ALL POSSIBLE. ALSO...HEAVY RAINS OVERNIGHT WILL
MEAN THAT ADDITIONAL HEAVY RAINS COULD BRING SOME INLAND FLOODING.
MOTORISTS SHOULD STAY ALERT FOR AREAS OF PONDING ON ROADWAYS AS
YOU CANNOT TELL IF THE ROADWAY UNDERNEATH HAS COLLAPSED.

FOR MARINERS...EXPECT WINDS TO PICK UP TO SMALL CRAFT EXERCISE
CAUTION CRITERIA LATER THIS AFTERNOON AND THEN ADVISORY CRITERIA
OVERNIGHT AS A STRONG COLD FRONT PUSHES INTO OUR REGION. MARINERS
MAY WANT TO POSTPONE TRAVEL UNTIL CONDITIONS IMPROVE.

.DAYS TWO THROUGH SEVEN...SATURDAY THROUGH THURSDAY

SHOWERS ARE LIKELY WITH A SLIGHT CHANCE OF THUNDERSTORMS EARLY
SATURDAY MORNING...HOWEVER SEVERE WEATHER IS NOT EXPECTED AT THIS
TIME.

AFTER THE FRONT MOVES THROUGH SATURDAY MORNING...BELOW NORMAL
TEMPERATURES ARE EXPECTED FOR MOST OF THE REST OF THE PERIOD.
READINGS MAY HIT THE FREEZING MARK MONDAY MORNING...BUT SHOULD
REMAIN ABOVE FREEZING FOR THE REST OF THE WEEK.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION MAY BE NECESSARY LATER TODAY.

FLZ050>052-055>057-060-061-031615-
PINELLAS-HILLSBOROUGH-POLK-MANATEE-HARDEE-HIGHLANDS-SARASOTA-
DE SOTO-
505 AM EST FRI FEB 3 2006

THIS HAZARDOUS WEATHER OUTLOOK IS FOR PINELLAS...HILLSBOROUGH...
POLK...MANATEE...HARDEE...HIGHLANDS...SARASOTA...AND DESOTO COUNTIES.

.DAY ONE...TODAY AND TONIGHT

A COUPLE OF UPPER LEVEL DISTURBANCES WILL COMBINE WITH WARM AND
MOIST SOUTHERLY FLOW TO PRODUCE LIKELY CHANCES FOR RAIN WITH A
GOOD CHANCE FOR SOME THUNDERSTORMS. A FEW OF THE STORMS MAY BE
STRONG WITH DAMAGING WINDS AND AN ISOLATED TORNADO POSSIBLE.

FOR MARINERS...EXPECT WINDS AT SMALL CRAFT EXERCISE CAUTION
CRITERIA TODAY AND THEN ADVISORY CRITERIA OVERNIGHT AS A STRONG
COLD FRONT PUSHES INTO OUR REGION. MARINERS MAY WANT TO POSTPONE
TRAVEL UNTIL CONDITIONS IMPROVE.

THE STRONGER WINDS OVER THE WATERS MEANS THAT THERE IS A MODERATE
RISK FOR RIP CURRENTS AT AREA BEACHES TODAY. THOSE SWIMMERS WHO
WANT TO VENTURE INTO THE WATERS TODAY ARE URGED TO SWIM AT
LIFEGUARDED BEACHES AND TO HEED THE ADVICE OF THE LOCAL BEACH PATROL.

.DAYS TWO THROUGH SEVEN...SATURDAY THROUGH THURSDAY

SHOWERS ARE LIKELY WITH A CHANCE OF THUNDERSTORMS EARLY SATURDAY
MORNING...HOWEVER SEVERE WEATHER IS NOT EXPECTED AT THIS TIME.

AFTER THE FRONT MOVES THROUGH SATURDAY MORNING...BELOW NORMAL
TEMPERATURES ARE EXPECTED FOR MOST OF THE REST OF THE PERIOD.
HOWEVER...AT THIS TIME...READINGS ARE EXPECTED TO REMAIN ABOVE
FREEZING THROUGH THE PERIOD.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION MAY BE NECESSARY LATER TODAY.

FLZ062-065-031615-
CHARLOTTE-LEE-
505 AM EST FRI FEB 3 2006

THIS HAZARDOUS WEATHER OUTLOOK IS FOR CHARLOTTE AND LEE COUNTIES.

.DAY ONE...TODAY

A COUPLE OF UPPER LEVEL DISTURBANCES WILL COMBINE WITH WARM AND
MOIST SOUTHERLY FLOW TO PRODUCE A GOOD CHANCE FOR RAIN OVER THE
REGION TODAY.

FOR MARINERS...EXPECT WINDS AT SMALL CRAFT EXERCISE CAUTION
CRITERIA TODAY AND THEN ADVISORY CRITERIA OVERNIGHT AS A STRONG
COLD FRONT PUSHES INTO OUR REGION. MARINERS MAY WANT TO POSTPONE
TRAVEL UNTIL CONDITIONS IMPROVE.

THE STRONGER WINDS OVER THE WATERS MEANS THAT THERE IS A MODERATE
RISK FOR RIP CURRENTS AT AREA BEACHES TODAY. THOSE SWIMMERS WHO
WANT TO VENTURE INTO THE WATERS TODAY ARE URGED TO SWIM AT
LIFEGUARDED BEACHES AND TO HEED THE ADVICE OF THE LOCAL BEACH PATROL.

.DAYS TWO THROUGH SEVEN...SATURDAY THROUGH THURSDAY

SHOWERS ARE LIKELY WITH A CHANCE OF THUNDERSTORMS SATURDAY
MORNING. A SQUALL LINE MAY DEVELOP OVER THE REGION WITH DAMAGING
WINDS...HAIL...AND ISOLATED TORNADOES ALONG AND IN ANY INDIVIDUAL
THUNDERSTORMS THAT DEVELOP AHEAD OF THE MAIN LINE.

AFTER THE FRONT MOVES THROUGH SATURDAY AFTERNOON...BELOW NORMAL
TEMPERATURES ARE EXPECTED FOR MOST OF THE REST OF THE PERIOD.
HOWEVER...AT THIS TIME...READINGS ARE EXPECTED TO REMAIN ABOVE
FREEZING THROUGH THE PERIOD.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION WILL NOT BE NECESSARY TODAY.

In the hours before

Special weather statement, Feb 3, 7:47 AM EST, 4 hours 32 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE TAMPA BAY AREA - RUSKIN FL
747 AM EST FRI FEB 3 2006

FLZ049>051-031415-
PINELLAS-HILLSBOROUGH-PASCO-
747 AM EST FRI FEB 3 2006

...TORRENTIAL RAINS WILL AFFECT THE TAMPA BAY REGION...

A LINE OF STRONG THUNDERSTORMS WITH GUSTY WINDS IS MOVING EAST AT 20
MPH...AND WILL AFFECT THE TAMPA BAY REGION DURING THE MORNING RUSH
HOUR. IN PARTICULAR...MUCH OF PASCO AND PINELLAS COUNTY WILL SEE
HEAVY RAIN AND STRONG WINDS BETWEEN 8 AND 9 AM EST. THIS LINE WILL
ALSO AFFECT HILLSBOROUGH COUNTY. GUSTY WINDS UP TO 50 MPH MAY CAUSE
LOOSE OBJECTS TO BLOW AROUND. SOME DAMAGE TO TREE LIMBS AND WIRES IS
POSSIBLE. FREQUENT CLOUD TO GROUND LIGHTNING IS EXPECTED. THIS STORM
WILL PRODUCE PEA SIZE HAIL. TORRENTIAL RAINS WILL REDUCE VISIBILITY
TO NEAR ZERO AT TIMES. MOTORISTS MAY WANT TO DELAY TRAVEL.

NP
Special weather statement, Feb 3, 9:16 AM EST, 3 hours 3 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE TAMPA BAY AREA - RUSKIN FL
916 AM EST FRI FEB 3 2006

FLZ050-051-031530-
PINELLAS-HILLSBOROUGH-
916 AM EST FRI FEB 3 2006

...TORRENTIAL RAINS WILL AFFECT THE TAMPA BAY REGION THIS MORNING...

A LINE OF STRONG THUNDERSTORMS MOVING EAST AT 25 MPH...WILL CONTINUE
TO AFFECT MUCH OF THE TAMPA BAY REGION THROUGH 1030 AM EST. CITIES
IN THE PATH OF THE LINE OF STORMS INCLUDES TAMPA...SAINT
PETERSBURG...BRANDON...BLOOMINDALE...MACDILL AIR FORCE BASE...AND
MADEIRA BEACH. GUSTY WINDS UP TO 40 MPH ARE POSSIBLE. EXCESSIVE
CLOUD TO GROUND LIGHTNING IS EXPECTED THIS STORM WILL PRODUCE PEA
SIZE HAIL...AND TORRENTIAL RAINS WILL REDUCE VISIBILITY TO NEAR ZERO
AT TIMES. MOTORISTS MAY WANT TO DELAY TRAVEL.

NP

The office that day

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

IssuedProductOfficeCountiesLasted
Feb 3, 2:02 AM ESTSpecial Marine WarningTBW43 min
Feb 3, 7:47 AM ESTSpecial Marine WarningTBW88 min
Feb 3, 7:57 AM ESTSevere Thunderstorm WarningTBWPasco33 min
Feb 3, 10:57 AM ESTSpecial Marine WarningTBW48 min
Feb 3, 11:19 AM ESTFlash Flood WarningTBWPinellas86 min
Feb 3, 12:26 PM ESTSpecial Marine WarningTBW49 min
Feb 3, 12:42 PM ESTFlash Flood WarningTBWPinellas2 hr
Feb 3, 1:01 PM ESTSpecial Marine WarningTBW59 min
Feb 3, 2:03 PM ESTSpecial Marine WarningTBW57 min
Feb 3, 2:15 PM ESTFlash Flood WarningTBWHillsborough105 min
Feb 3, 2:45 PM ESTFlash Flood WarningTBWPinellas2 hr
Feb 3, 4:18 PM ESTSpecial Marine WarningTBW42 min
Feb 3, 4:29 PM ESTSevere Thunderstorm WarningTBWSumter24 min
Feb 3, 5:57 PM ESTSevere Thunderstorm WarningTBWLevy24 min

Nearby

Flash Flood Warnings in Florida, 2006Every flash flood warning in 2006

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.