NY NJ PA Weather Forecasts

Boat and beach report for Saturday, June 20 2009

6:38 AM

Clouds will continue to increase through the morning hours as a low pressure system and warm front approaches the coast.  Showers and thunderstorms will move through the coastal water late this morning through early in the evening.  The showers and thunderstorms will move quickly, however will be capable of very heavy downpours.  A few of the thunderstorms over central and southern New Jersey down through the Delaware Bay have the potential to become severe with frequent lightning, large hail over 0.5″ in diameter, wind gusts exceeding 50 mph, and an isolated tornado.  Tonight through Sunday morning, the low pressure system will slowly exit the region with lingering showers and partly cloudy skies.  Scattered showers will linger over the forecast area through Sunday, especially over the coastal waters.  High pressure will build into the Mid Atlantic on Monday with clear and dry conditions.

Winds this morning will be light and variable, however by the afternoon winds will be from the south around 5 to 15 mph increasing to 10 to 20 mph this evening.  Tonight, winds will veer from the south to west around 15 to 30 mph with higher gusts in stronger thunderstorms.  By Sunday morning, winds will veer to the west and northwest around 15 to 30 mph and to the northwest by the afternoon hours.  On Monday, winds will be from the north around 15 to 30 mph.  

Temperatures this afternoon will rise into the lower to upper 70’s for afternoon highs ahead of the showers and thunderstorms.  On Saturday, temperatures will fall into the lower to upper 60’s for morning lows and rebound into the upper 60’s to mid 70’s for afternoon highs.  On Monday, temperatures will fall into the upper 50’s to lower 60’s for morning lows and rebound into the lower to mid 70’s for afternoon highs.

Water temperatures range from the mid 60’s to lower 70’s throughout the coastal waters with the exception of the coastal waters just east of Long Island where water temperatures range from the mid to upper 50’s.

Wave heights will range from 3 to 6 feet through the period with higher swells in and around strong to severe thunderstorms.  A small craft advisory is in effect for the coastal waters through Sunday evening.

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