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 IMPORTANT NOTICE TO MARINERS...MARINE FORECASTS ARE ISSUED AT LEAST  FOUR TIMES A DAY. BOATERS ON EXTENDED TRIPS SHOULD ROUTINELY MONITOR  SUBSEQUENT FORECAST ISSUANCES AND UPDATED FOR THE LATEST MARINE  WEATHER INFORMATION.    THE WAVE HEIGHTS ARE FORECAST AS SIGNIFICANT WAVE HEIGHT WHICH  IS THE AVERAGE OF THE HIGHEST ONE-THIRD OF THE WAVES.  THE HIGHEST WAVES MAY RARELY BE TWICE THE SIGNIFICANT WAVE HEIGHT.  THE WINDS AND SEAS NEAR THUNDERSTORMS MAY BE HIGHER THAN FORECAST.        GMZ830-221000-  TAMPA BAY WATERS-  243 PM EST TUE FEB 21 2017    TONIGHT  SOUTH WINDS AROUND 10 KNOTS THEN BECOMING SOUTHEAST AFTER  MIDNIGHT. BAY AND INLAND WATERS A LIGHT CHOP. SCATTERED SHOWERS LATE.  WEDNESDAY  SOUTHEAST WINDS AROUND 10 KNOTS. BAY AND INLAND WATERS  A LIGHT CHOP. RAIN AND A CHANCE OF THUNDERSTORMS.  WEDNESDAY NIGHT  NORTHEAST WINDS AROUND 10 KNOTS. BAY AND INLAND  WATERS A LIGHT CHOP. A CHANCE OF SHOWERS.  THURSDAY  NORTHEAST WINDS 5 TO 10 KNOTS THEN BECOMING NORTH IN THE  AFTERNOON. BAY AND INLAND WATERS SMOOTH. A CHANCE OF SHOWERS.  THURSDAY NIGHT  NORTH WINDS AROUND 10 KNOTS. BAY AND INLAND WATERS  A LIGHT CHOP.  FRIDAY  NORTH WINDS AROUND 5 KNOTS. BAY AND INLAND WATERS SMOOTH.  FRIDAY NIGHT  NORTHWEST WINDS AROUND 10 KNOTS THEN BECOMING NORTH  AROUND 5 KNOTS AFTER MIDNIGHT. BAY AND INLAND WATERS A LIGHT CHOP.  SATURDAY  NORTHWEST WINDS AROUND 10 KNOTS. BAY AND INLAND WATERS A  LIGHT CHOP.  SATURDAY NIGHT  NORTHWEST WINDS 5 TO 10 KNOTS THEN BECOMING NORTH  AROUND 15 KNOTS AFTER MIDNIGHT. BAY AND INLAND WATERS A MODERATE  CHOP.  SUNDAY  NORTH WINDS AROUND 15 KNOTS. BAY AND INLAND WATERS A  MODERATE CHOP.    $$

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