Very Heavy Rainfall and High Risk Flood Event in the South-Central U.S.

Thunderstorms, some severe, will continue to produce tremendously heavy rainfall over the same areas through the day today. The area with the greatest potential for excessive rainfall includes Oklahoma, Arkansas, and Missouri. Very heavy rains will extend broadly from the Southern Plains to the Upper Midwest. Life threatening flash flooding is expected with these storms.
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Last Update: 856 PM EDT SAT APR 29 2017

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Tampa Bay, FL Local Forecast Office

8NM W Lynn Silvertooth Reef FL

Marine Zone Forecast

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.

Synopsis: AN EVENING SOUTHEASTERLY SURGE WILL BRING WINDS INTO THE CAUTIONARY RANGE OVERNIGHT...REQUIRING EXERCISE CAUTION HEADLINES FOR THE OFFSHORE WATERS. THESE ENHANCED WINDS WILL CONTINUE THROUGH SUNDAY MORNING FOLLOWED BY DECREASING WINDS AS A SEA BREEZE CIRCULATION DEVELOPS IN THE AFTERNOON. WINDS COULD AGAIN INCREASE SUNDAY NIGHT WITH A SURGE...THEN HIGH PRESSURE WILL SETTLE OVER THE WATERS ON MONDAY RESULTING IN LIGHTER WINDS. A WEAK COLD FRONT WILL MOVE ACROSS NORTH FLORIDA LATE MONDAY AND MONDAY NIGHT...THEN STALL AND BECOME DIFFUSE TUESDAY AND WEDNESDAY. A STRONGER COLD FRONT WILL MOVE INTO THE NORTHWEST GULF LATE THURSDAY...WHICH COULD BRING AN INCREASE IN WINDS FROM THE SOUTHEAST.

Rest Of Tonight
Southeast winds 5 to 10 knots increasing to around 15 knots after midnight. Seas 2 to 3 feet. Bay and inland waters a moderate chop.
Sunday
Southeast winds around 15 knots then becoming south in the afternoon. Seas 2 to 4 feet. Bay and inland waters a moderate chop.
Sunday Night
South winds 5 to 10 knots then becoming southeast around 15 knots after midnight. Seas 2 to 3 feet. Bay and inland waters a moderate chop.
Monday
South winds around 15 knots. Seas 2 to 4 feet. Bay and inland waters a moderate chop. A slight chance of thunderstorms.
Monday Night
South winds around 10 knots. Seas 2 to 3 feet. Bay and inland waters a light chop. A chance of showers and a slight chance of thunderstorms.
Tuesday
South winds around 10 knots then becoming southwest in the afternoon. Seas 2 feet. Bay and inland waters a light chop. A chance of showers and a slight chance of thunderstorms.
Tuesday Night
North winds around 5 knots then becoming east after midnight. Seas 2 feet. Bay and inland waters smooth.
Wednesday
East winds around 10 knots then becoming south in the afternoon. Seas 2 feet. Bay and inland waters a light chop.
Wednesday Night
West winds around 5 knots then becoming southeast around 10 knots after midnight. Seas 2 feet. Bay and inland waters a light chop.
Thursday
South winds around 15 knots. Seas 2 to 3 feet. Bay and inland waters a moderate chop. A slight chance of thunderstorms.
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ABOUT THIS FORECAST

Last Update: 856 PM EDT SAT APR 29 2017
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