Alert archive / Florida / Small Craft Advisories in 2012

Small Craft Advisory 15, NWS Tampa Bay, FL

April 21, 2012

NWS Tampa Bay, FL issued this small craft advisory at Apr 21, 2012, 4:17 PM EDT. It took effect at Apr 21, 2012, 8:00 PM EDT. It was in force for 63 hr.

The area

The counties it named.

The facts

Issued: Apr 21, 2012, 4:17 PM EDT (20:17 UTC)
In effect from: Apr 21, 2012, 8:00 PM EDT
Expired: Apr 24, 2012, 11:00 AM EDT
In force: 63 hr
Issued by: NWS Tampa Bay, FL

What forecasters said that day

The local office's own words before this small craft advisory 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 small craft advisory went out at Apr 21, 2:05 PM EDT, 2 hours 12 minutes earlier.

Area forecast discussion, Apr 21, 2:05 PM EDT, 2 hours 12 minutes before

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Hazardous weather outlook, Apr 21, 6:02 AM EDT, 10 hours 15 minutes before

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE TAMPA BAY RUSKIN FL
602 AM EDT SAT APR 21 2012

FLZ039-042-043-048>052-055>057-060>062-065-211800-
LEVY-CITRUS-SUMTER-HERNANDO-PASCO-PINELLAS-HILLSBOROUGH-POLK-
MANATEE-HARDEE-HIGHLANDS-SARASOTA-DE SOTO-CHARLOTTE-LEE-
602 AM EDT SAT APR 21 2012

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

.DAY ONE...TODAY AND TONIGHT.

...THUNDERSTORM IMPACT...
THERE WILL BE STRONG TO SEVERE THUNDERSTORMS ACROSS THE AREA TODAY
AS A STRONG LOW PRESSURE SYSTEM APPROACHES THE AREA TODAY AND THEN
MOVES ACROSS THE AREA TONIGHT. A STRONG LOW LEVEL JET AND VERY
COLD AIR ALOFT WILL ALLOW STRONGER THUNDERSTORMS TO PRODUCE
DAMAGING WINDS...LARGE HAIL AND POSSIBLY ISOLATED TORNADOES. THE
BEST CHANCES FOR THIS WILL BE LATER THIS AFTERNOON AND TONIGHT AS
DAYTIME HEATING ADDS TO THE INSTABILITY AND THEN THE UPPER LOW
MOVES OVER THE AREA. IN ADDITION...HEAVY RAINFALL IS EXPECTED WITH
THIS SYSTEM AND A WIDESPREAD 1 TO 3 INCHES WILL BE POSSIBLE WITH
LOCALLY HEAVIER AMOUNTS. THIS MAY CAUSE SOME MINOR FLOODING OF
ROADWAYS...LOW LYING AREAS AND SMALL STREAMS. RESIDENTS AND
VISITORS SHOULD MONITOR CONDITIONS CLOSELY TODAY AND TONIGHT FOR
ANY POSSIBLE WATCHES OR WARNINGS.

...RIP CURRENT IMPACT...
THERE IS A MODERATE RISK OF RIP CURRENTS TODAY FROM TARPON SPRINGS
SOUTH AS WINDS INCREASE AND BECOME SOUTHWESTERLY THROUGH THE LATE
MORNING AND AFTERNOON. A RIP CURRENT IS A 10 TO 30 YARD WIDE
CHANNEL OF WATER THAT CAN PULL EVEN A STRONG SWIMMER INTO DEEPER
WATER.

TO AVOID GETTING CAUGHT IN A RIP CURRENT...SWIM AT GUARDED
BEACHES AND HEED THE ADVICE OF THE BEACH PATROL. AT UNGUARDED
BEACHES AND NEAR PIERS...JETTIES...AND INLETS...DO NOT GO INTO THE
SURF MUCH ABOVE YOUR KNEES.

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 AND SEAS WILL BE INCREASING BRIEFLY THROUGH THE AFTERNOON
AND SMALL CRAFT OPERATORS SHOULD TAKE CAUTION IF TRAVELING
OFFSHORE. WINDS AND SEAS WILL THEN INCREASE TO 20 TO 25 KNOTS WITH
HIGHER GUSTS OVERNIGHT WITH SEAS GRADUALLY BUILDING UP TO 8 FEET.
FISHERMEN AND OTHER SMALL CRAFT OPERATORS MAY WANT TO POSTPONE
TRIPS UNTIL CONDITIONS IMPROVE.

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

...THUNDERSTORM IMPACT...
A FEW LINGERING SHOWERS AND THUNDERSTORMS WILL BE POSSIBLE THROUGH
SUNDAY AFTERNOON AS THE COLD FRONT PUSHES THROUGH THE AREA. GUSTY
WINDS AND DEADLY LIGHTNING WILL BE POSSIBLE WITH THE STORMS.

...RIP CURRENT IMPACT...
STRONG ONSHORE FLOW WILL CAUSE RIP CURRENTS ALONG AREA BEACHES. IN
ADDITION...HIGH SURF MAY OCCUR WITH WAVE HEIGHTS OF 3 TO 5 FEET.

...WIND AND SEA IMPACT...
WINDS AND SEAS WILL REMAIN ABOVE ADVISORY LEVELS THROUGH MONDAY
NIGHT. SMALL CRAFT OPERATORS SHOULD USE EXTREME CAUTION OR
POSTPONE TRIPS UNTIL CONDITIONS IMPROVE.

...FIRE WEATHER IMPACT...
DRIER AIR WILL MOVE INTO THE AREA BEHIND THE COLD FRONT FOR MONDAY
AFTERNOON AND CAUSE SEVERAL HOURS OF CRITICAL HUMIDITIES. IN
ADDITION WINDS WILL BE NEAR 15 MPH. THIS WILL ALLOW FOR THE RAPID
SPREAD OF WILDFIRES. DRY CONDITIONS WILL CONTINUE THROUGH MID-WEEK
WITH A FEW HOURS OF CRITICAL HUMIDITIES POSSIBLE.

.SPOTTER INFORMATION STATEMENT...

SPOTTERS SHOULD MONITOR THE WEATHER. FORMAL ACTIVATION MAY BE
NEEDED.

COLSON

In the hours before

Special weather statement, Apr 21, 2:32 PM EDT, 1 hour 45 minutes before

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Special weather statement, Apr 21, 2:35 PM EDT, 1 hour 42 minutes before

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Local storm report, Apr 21, 2:52 PM EDT, 1 hour 25 minutes before

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Local storm report, Apr 21, 3:04 PM EDT, 1 hour 13 minutes before

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Special weather statement, Apr 21, 3:39 PM EDT, 38 minutes before

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Local storm report, Apr 21, 3:47 PM EDT, 30 minutes before

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The office that day

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

Issued	Product	Office	Counties	Lasted
Apr 21, 12:47 AM EDT	Special Weather Statement	TBW	Charlotte, Lee	43 min
Apr 21, 2:15 PM EDT	Special Weather Statement	TBW	Levy	45 min
Apr 21, 2:19 PM EDT	Special Marine Warning	TBW		26 min
Apr 21, 2:32 PM EDT	Special Weather Statement	TBW	Hillsborough, Pasco	58 min
Apr 21, 2:33 PM EDT	Special Marine Warning	TBW		42 min
Apr 21, 2:35 PM EDT	Special Weather Statement	TBW	Charlotte, Manatee, Sarasota	85 min
Apr 21, 3:39 PM EDT	Special Weather Statement	TBW	Citrus, Hernando, Levy, Pasco, Sumter	66 min

Nearby

Small Craft Advisories in Florida, 2012 Every small craft advisory in 2012

Sources

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text.