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: 431 AM EDT SUN APR 30 2017

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Tampa Bay, FL Local Forecast Office

6NM NNW Captiva 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 UPDATES 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 ACROSS THE WATERS FROM THE ATLANTIC WILL CONTINUE THROUGH TONIGHT THEN BEGIN TO SLIDE EAST MONDAY AS A COLD FRONT MOVES INTO THE GULF WATERS. THIS FRONT REACHES THE EAST GULF MONDAY NIGHT THEN STALLS ACROSS THE STATE AND BECOMES DIFFUSE THROUGH MIDWEEK... BEFORE LIFTING NORTH. A STRONGER FRONT MAY APPROACH THE AREA LATE IN THE WEEK. SOME ROBUST WINDS WILL CONTINUE THIS MORNING THEN DIMINISH BUT PICK BACK UP THIS EVENING...WITH EXERCISE CAUTION HEADLINES IN PLACE. SHOWERS AND THUNDERSTORMS WILL PROVIDE LOCALLY HIGHER WINDS AND SEAS.

Today
Southeast winds around 15 knots. Seas 2 to 3 feet. Bay and inland waters a moderate chop.
Tonight
Southeast winds around 15 knots. Seas 2 to 3 feet. Bay and inland waters a moderate chop.
Monday
South winds around 15 knots. Seas 2 to 3 feet. Bay and inland waters a moderate chop.
Monday Night
Southeast winds around 10 knots. Seas 2 feet. Bay and inland waters a light chop. A slight chance of thunderstorms after midnight.
Tuesday
South winds around 10 knots then becoming southwest late in the afternoon. Seas 2 feet. Bay and inland waters a light chop. A slight chance of thunderstorms.
Tuesday Night
West winds around 5 knots then becoming northwest late in the evening, then becoming east around 5 knots after midnight. Seas 2 feet or less. Bay and inland waters smooth. A slight chance of thunderstorms in the evening.
Wednesday
Southeast winds around 5 knots. Seas 2 feet or less. Bay and inland waters smooth. A slight chance of thunderstorms.
Wednesday Night
Southeast winds around 10 knots. Seas 2 feet or less. Bay and inland waters a light chop.
Thursday
South winds around 10 knots. Seas 2 to 3 feet. Bay and inland waters a light chop.
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ABOUT THIS FORECAST

Last Update: 431 AM EDT SUN APR 30 2017
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