Increasing Risk for Flash and River Flooding Through the Weekend

A storm system will track across the central U.S. and set the stage for severe thunderstorms and widespread heavy rainfall through the weekend. There will be a threat for flash and river flooding for portions of the Southern Plains into the Upper Midwest.
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Last Update: 243 PM EDT FRI APR 28 2017

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Tampa Bay, FL Local Forecast Office

28NM SSW Pass-a-grille 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: HIGH PRESSURE WILL CONTINUE TO BUILD ACROSS THE EASTERN GULF OF MEXICO INTO THE WEEKEND, WITH GENERALLY EASTERLY/SOUTHEASTERLY WINDS, TURNING ONSHORE EACH AFTERNOON WITH THE SEA BREEZE. NOCTURNAL SURGES COULD BRING WINDS UP TO CAUTIONARY LEVELS DURING THE LATE NIGHT/EARLY MORNING HOURS. AN APPROACHING COLD FRONT WILL CAUSE A LONGER PERIOD OF CAUTIONARY OR POSSIBLY LOW END ADVISORY LEVEL WINDS SATURDAY NIGHT THROUGH SUNDAY. WINDS WILL THEN RELAX DURING THE EARLY PART OF THE WEEK AS THE FRONT WASHES OUT ACROSS THE AREA.

Tonight
South winds 5 to 10 knots then becoming southeast around 15 knots after midnight. Seas 2 to 3 feet.
Saturday
Southeast winds around 15 knots. Seas 2 to 4 feet.
Saturday Night
Southeast winds 10 to 15 knots increasing to 15 to 20 knots after midnight. Seas 2 to 4 feet.
Sunday
Southeast winds 15 to 20 knots. Seas 3 to 5 feet.
Sunday Night
South winds 10 to 15 knots then becoming southeast 15 to 20 knots after midnight. Seas 2 to 4 feet.
Monday
South winds around 15 knots. Seas 2 to 4 feet. A slight chance of thunderstorms.
Monday Night
South winds around 15 knots. Seas 2 to 3 feet. A chance of showers and isolated thunderstorms.
Tuesday
South winds around 10 knots then becoming east in the afternoon. Seas 2 feet.
Tuesday Night
Northeast winds around 5 knots then becoming east around 10 knots after midnight. Seas 2 feet.
Wednesday
Southeast winds around 10 knots. Seas 2 feet.
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ABOUT THIS FORECAST

Last Update: 243 PM EDT FRI APR 28 2017
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