Severe thunderstorms and heavy rain for portions of the southern U.S.

A storm system will produce scattered severe thunderstorms and heavy rain in portions of lower-mid Mississippi River Valley and Gulf Coast region on Saturday. Very large hail, locally damaging winds, isolated tornadoes and flash flooding are possible in this area. Some of the flooding could be significant in portions of Louisiana, Mississippi and southeast Arkansas.
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Last Update: 632 AM EDT SAT APR 30 2016

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New York, NY Local Forecast Office

17NM SE Islip NY

Marine Zone Forecast

...SMALL CRAFT ADVISORY FOR HAZARDOUS SEAS IN EFFECT UNTIL NOON

Synopsis: A HIGH PRESSURE RIDGE SHIFTS THROUGH THE WATERS TODAY. LOW PRESSURE THEN APPROACHES TONIGHT AND SUNDAY BEFORE PASSING THROUGH SUNDAY NIGHT AND MONDAY. WEAK HIGH PRESSURE THEN FOLLOWS THROUGH WEDNESDAY.

Today
E winds 5 to 10 kt...becoming SE late. Seas 3 to 5 ft...mainly in a SE swell...subsiding to 2 to 4 ft by afternoon. Rough conditions around inlets.
Tonight
SE winds 5 to 10 kt. Seas 2 to 4 ft.
Sun
E winds 10 to 15 kt...increasing to 15 to 20 kt with gusts up to 25 kt in the afternoon. Seas 2 to 4 ft...building to 3 to 5 ft in the afternoon. Rain.
Sun Night
NE winds 15 to 20 kt with gusts up to 25 kt... Diminishing to 10 to 15 kt after midnight. Seas 4 to 7 ft. Rain.
Mon
NE winds around 10 kt with gusts up to 20 kt...becoming N in the afternoon. Seas 4 to 6 ft. Rain likely...mainly in the morning.
Mon Night
NW winds 10 to 15 kt with gusts up to 20 kt... Diminishing to 5 to 10 kt after midnight. Seas 3 to 5 ft.
Tue
NW winds 5 to 10 kt...becoming SW. Seas 2 to 4 ft.
Wed
SE winds 5 to 10 kt...becoming S after midnight. Seas 3 to 4 ft. Chance of showers at night.
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ABOUT THIS FORECAST

Last Update: 632 AM EDT SAT APR 30 2016
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