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Long Island weather: Late storms moving through LI should begin cooling temps

Elizabeth and Fred Rosenberg from Aquebogue enjoy a

Elizabeth and Fred Rosenberg from Aquebogue enjoy a quiet afternoon at Iron Pier Beach in Jamesport. Credit: Randee Daddona

Severe weather that could break the extreme heat this week is forecast to move in late Wednesday night, the National Weather Service said.

The weather service warned of a severe thunderstorm moving through Nassau and into Suffolk County until 10:15 p.m. Wednesday.

Heavy rain and damaging winds could accompany the storms, which are a prelude to another set of storms Thursday that prompted the weather service to issue a flash flood warning for Western Long Island.

"We are then expecting another round of isolated to scattered severe thunderstorms Thursday afternoon and evening as a slow moving cold front approaches. The greatest threat is for New York City, Western Long Island, and northeastern NJ. Localized to scattered areas of flash flooding are also possible with these slow moving storms," the weather service said in a briefing Wednesday afternoon.

The severe weather will help ease the high heat and humidity that has held Long Island and the region captive for the last three days, with temperatures hitting the low 90s Wednesday and a heat index closer to 100 degrees, forecasters said.

The heat advisory issued since Monday remains in effect for Long Island, except southeastern Suffolk, through 8 p.m. Wednesday.

The state Department of Environmental Conservation also issued an air quality health advisory for Long Island on Wednesday, with ozone the pollutant of concern, according to Suffolk officials.

Leading into the holiday weekend, rain is also likely Friday, with a high of 78 degrees and a low of 63.

There’s a chance of rain Saturday, when there will be a high of 75 degrees and a low of 61.

On Sunday, Independence Day, the high will be 77 degrees and the low will be 64. Showers and thunderstorms are possible.

With Keldy Ortiz

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