Alert archive / Florida / Red Flag Warnings in 2008

Red Flag Warning 6, NWS Tampa Bay, FL

January 19, 20086 counties in Florida

NWS Tampa Bay, FL issued this red flag warning at Jan 19, 2008, 1:17 PM EST for 6 counties in Florida. It took effect at Jan 20, 2008, 4:31 AM EST. It was in force for 13 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 19, 2008, 1:17 PM EST (18:17 UTC)
In effect from
Jan 20, 2008, 4:31 AM EST
Expired
Jan 20, 2008, 6:00 PM EST
In force
13 hr
Issued by
NWS Tampa Bay, FL

Counties DeSoto County, FL, Hardee County, FL, Highlands County, FL, Pinellas County, FL, Polk County, FL, Sumter County, FL

The radar

The Tampa radar (KTBW), 49 km from the middle of the area, began a volume at 18:21 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 12:00Z, 6.3 hours before the alert went out and 49 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 2008-01-19Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 13 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 2008-01-19The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 170 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
13 J/kg
Mixed-layer CIN
-57 J/kg
Mixed-layer LCL
560 m above ground
0-6 km bulk shear
56 kt
0-1 km storm-relative helicity
170 m²/s²
0-3 km storm-relative helicity
233 m²/s²
Significant tornado parameter
0.0
Supercell composite
-0.0

Open this sounding in Storm Lab

What forecasters said that day

The local office's own words before this red flag 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 red flag warning went out at Jan 19, 9:53 AM EST, 3 hours 24 minutes earlier.

Area forecast discussion, Jan 19, 9:53 AM EST, 3 hours 24 minutes before
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Hazardous weather outlook, Jan 19, 6:02 AM EST, 7 hours 15 minutes before
HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE TAMPA BAY RUSKIN FL
602 AM EST SAT JAN 19 2008

FLZ039-042-043-048>052-055>057-060>062-065-191500-
LEVY-CITRUS-SUMTER-HERNANDO-PASCO-PINELLAS-HILLSBOROUGH-POLK-
MANATEE-HARDEE-HIGHLANDS-SARASOTA-DE SOTO-CHARLOTTE-LEE-
602 AM EST SAT JAN 19 2008

THIS HAZARDOUS WEATHER OUTLOOK IS FOR WEST CENTRAL AND SOUTHWEST
FLORIDA.

.DAY ONE...TODAY AND TONIGHT.

...DENSE FOG/SMOKE IMPACT...
AREAS OF FOG HAVE DEVELOPED ACROSS THE AREA THIS MORNING REDUCING
VISIBILITIES TO GENERALLY 1 TO 3 MILES. SOME DENSE PATCHES ARE
REDUCING VISIBILITIES BELOW ONE HALF MILE MAINLY FROM THE TAMPA
BAY AREA SOUTH THROUGH LEE COUNTY. MOTORISTS SHOULD SLOW
DOWN...USE LOW BEAM HEADLIGHTS...AND MAINTAIN A SAFE FOLLOWING
DISTANCE BETWEEN VEHICLES THROUGH 9 AM.

...THUNDERSTORM IMPACT...
SHOWERS AND THUNDERSTORMS WILL BE POSSIBLE ACROSS THE AREA TODAY
AND TONIGHT AS A LOW PRESSURE AREA MOVES ACROSS NORTHERN FLORIDA
THIS AFTERNOON AND EVENING AND PUSHES A COLD FRONT THROUGH THE
AREA TONIGHT. THE BEST CHANCES FOR THUNDERSTORMS WILL BE ACROSS
THE NORTH TODAY AND THEN ACROSS THE TAMPA BAY AREA TONIGHT. SOME
OF THE THUNDERSTORMS WILL BE STRONG WITH GUSTY WINDS OF 40 MPH AND
FREQUENT DEADLY LIGHTNING POSSIBLE. BRIEF PERIODS OF HEAVY RAIN
MAY ALSO CAUSE PONDING OF WATER ON ROADWAYS.

...RIP CURRENT IMPACT...
AS WINDS INCREASE ACROSS THE AREA THIS MORNING AND BECOME WEST TO
SOUTHWEST...CONDITIONS WILL BECOME ROUGH AND CAUSE A MODERATE
RISK OF RIP CURRENTS AT ALL AREA BEACHES TODAY.

IF CAUGHT IN THE SEAWARD PULL OF A RIP CURRENT...DO NOT ATTEMPT
TO MOVE DIRECTLY TOWARD SHORE. INSTEAD...MOVE SIDEWAYS ACROSS THE
RIP CURRENT UNTIL THE PULL EASES. ANOTHER METHOD OF ESCAPE IS TO
LET THE RIP CURRENT PULL YOU SEAWARD 50 TO 100 YARDS...WHERE THE
FORCE WEAKENS. THEN...SWIM TOWARD THE BEACH AT AN ANGLE AWAY FROM
THE CURRENT.

...WIND AND SEA IMPACT...
WINDS WILL INCREASE THROUGH THE MORNING TO 20 TO 25 KNOTS ACROSS
THE COASTAL WATERS AS AN AREA OF LOW PRESSURE APPROACHES AND MOVES
ACROSS THE STATE THROUGH THIS EVENING. SEAS WILL INCREASE UP TO 9
FEET BY TONIGHT AS WINDS SHIFT FROM SOUTHWEST THIS AFTERNOON TO
NORTHWEST THIS EVENING AS A COLD FRONT PUSHES THROUGH THE AREA IN
THE WAKE OF THE LOW. A SMALL CRAFT ADVISORY WILL BE IN EFFECT FROM
10 AM THIS MORNING AND CONTINUE THROUGH TONIGHT.

.DAYS TWO THROUGH SEVEN...SUNDAY THROUGH FRIDAY.

...WIND AND SEA IMPACT...
WINDS AND SEAS WILL REMAIN HIGH FOR SUNDAY THROUGH EARLY TUESDAY AS
HIGH PRESSURE BUILDS ACROSS THE AREA BEHIND THE FRONT AND REMAINS
IN PLACE THROUGH TUESDAY. SMALL CRAFT WILL NEED TO CONTINUE USING
EXTREME CAUTION ON AREA WATERS OR POSTPONE TRIPS UNTIL CONDITIONS
IMPROVE TUESDAY.

...FIRE WEATHER IMPACT...
COOLER AND DRIER AIR WILL MOVE INTO THE AREA BEHIND THE COLD FRONT
FOR SUNDAY. AFTERNOON HUMIDITIES ARE EXPECTED TO FALL BELOW 35
PERCENT FOR A FEW HOURS SUNDAY AFTERNOON AND IN ADDITION...WINDS
WILL BE 10 TO 20 MPH AND GUSTY...ENHANCING THE FIRE WEATHER
DANGER.

.SPOTTER INFORMATION STATEMENT...

SPOTTERS SHOULD MONITOR THE WEATHER AND SELF ACTIVATE IF NEEDED.

COLSON

The office that day

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

IssuedProductOfficeCountiesLasted
Jan 19, 6:11 AM ESTFire Weather WatchTBWDeSoto, Hardee, Highlands, Pinellas, Polk, Sumter22 hr
Jan 19, 6:28 AM ESTDense Fog AdvisoryTBWDeSoto, Hardee, Highlands, Pinellas, Polk3 hr
Jan 19, 2:56 PM ESTSpecial Marine WarningTBW64 min
Jan 19, 3:50 PM ESTSevere Thunderstorm WarningTBWLevy55 min
Jan 19, 3:53 PM ESTCoastal Flood StatementTBWPinellas5 hr
Jan 19, 4:00 PM ESTSpecial Marine WarningTBW60 min
Jan 19, 4:58 PM ESTSpecial Marine WarningTBW62 min
Jan 19, 5:11 PM ESTSevere Thunderstorm WarningTBWPasco, Pinellas34 min
Jan 19, 5:16 PM ESTTornado WarningTBWPinellas29 min
Jan 19, 5:16 PM ESTTornado WarningTBWPasco29 min
Jan 19, 5:24 PM ESTSevere Thunderstorm WarningTBWHillsborough, Pasco51 min
Jan 19, 5:34 PM ESTTornado WarningTBWHernando26 min
Jan 19, 5:38 PM ESTTornado WarningTBWPinellas18 min
Jan 19, 6:02 PM ESTTornado WarningTBWHernando, Sumter28 min
Jan 19, 6:03 PM ESTSpecial Marine WarningTBW57 min
Jan 19, 6:07 PM ESTSevere Thunderstorm WarningTBWHillsborough, Manatee53 min
Jan 19, 6:18 PM ESTSevere Thunderstorm WarningTBWHillsborough, Polk42 min
Jan 19, 6:54 PM ESTSpecial Marine WarningTBW96 min

Nearby

Red Flag Warnings in Florida, 2008Every red flag warning in 2008

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.