Lisa Epstein at Jones Beach on Monday. Beachgoers were urged to stay...

Lisa Epstein at Jones Beach on Monday. Beachgoers were urged to stay out of ocean because of a high risk of rip currents. Credit: Newsday/Alejandra Villa Loarca

Relief from the oppressive heat is on the way this week, according to the National Weather Service, but not before some unsettled weather moves in. 

Heat advisories that lasted much of last week and the weekend should be ending Tuesday at 8 p.m. The combination of heat and humidity that made it feel like 95 to 100 degrees in recent days will continue Tuesday before the changeover but it could be stormy.

"One more day of the offshore Bermuda high set up will result in hot and humid conditions. Thereafter the weather pattern will break down resulting in gradually lowering temperatures and humidity through Wednesday and into Thursday," the weather service said in a Monday evening advisory.

Tuesday morning, after a windy overnight with a slight chance of rain, there is a 30% chance of a thunderstorm, with a 50% chance overnight. But during the day, expect a high of 89 degrees that will feel more like 99, with even higher values further west on the Island.

Tuesday night into Wednesday looks like the transition when Mother Nature will send the Bermuda high packing along with the high heat. Southwest winds will turn around to the north overnight, the weather service said.

Forecasters said there is a chance for localized flash flooding Tuesday afternoon and evening from the storms, although that risk is higher for points west of Long Island.

Wednesday looks unsettled most of the day, with rain and thunderstorm but Wednesday's high should be a far cooler 83 degrees. The wet weather may go into Thursday, when the high will also be in the low 80s, the weather service said. The forecast Thursday is for partly sunny skies but there is also a 40% chance of showers.

Friday, the sun will finally return with another pleasant high in the low 80s, forecasters said.

There’s also a small craft advisory in effect until 6 a.m. Tuesday for all South Shore waters and from 4 p.m. through 4 a.m. Tuesday for the eastern Long Island Sound — and for Peconic Bay and Gardiners Bay.

High rip current risks also remain in effect for all South Shore beaches through Tuesday evening.

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