Mae Mullen, 16, of Rockville Centre, left, and Michelle Baller,...

Mae Mullen, 16, of Rockville Centre, left, and Michelle Baller, 16, of West Gilgo Beach, right, jog along Lido Beach, July 18, 2022 in Lido Beach, NY. There's a 60% of precipitation, mainly after 3 p.m., with new rainfall amounts between a quarter and half of an inch possible, the National Weather Service says. Credit: Debbie Egan-Chin

Powerful thunderstorms that made Monday on parts of Long Island a washout will be replaced Tuesday by a wave of heat forecast to continue for the rest of the week.

Temperatures Tuesday will climb into the low 90s and hover there through at least Saturday, according to the National Weather Service. The day will start out cloudy before sunshine gradually breaks through and the humidity climbs to about 80%.

Several cooling centers will open, while pools and beach hours will be extended.

Tuesday night will be mostly clear with a low of 73 degrees.

The heat wave follows Monday's thunderstorms, which dumped nearly 4 inches of rain in spots, mainly across the North Shore. The wet weather was part of a system stretching from Washington D.C. to Boston on Monday. 

Areas from Riverhead to Greenport received 2 to 4 inches of rain, said Matthew Wunsch, a meteorologist with the weather service. Northern Nassau County had 1 to 3 inches of rain, while northwest Suffolk County had 1 to 2 inches, Wunsch said. 

A flash flood was reported in Greenport, according to a weather service storm update late Monday.

Wind speeds of 42 mph were reported in Glen Cove.

On its website, the weather service said the risk of flooding across the East Coast was mitigated by "recent dry conditions" that led to "low stream flows."

Even so, flooding was reported on Long Island. Scott Russell, the Southold town supervisor, said flooding led to the temporary closure of part of Front Street in Greenport, as well as “some flooding in areas that we’re not used to,” including Oregon Road in Cutchogue. 

“We had flooding throughout the town,” he said. There were also downed utility wires and trees.

With the heat turning up Tuesday, Nassau County will open the Cantiague Park Administration Office in Hicksville and the Wantagh Park Administration Building as cooling centers from 8 a.m. to 6 p.m., county spokesman Chris Boyle said.

In Hempstead Town, beach hours will extend to 7 p.m., while town pools will stay open until 8 p.m., town officials said. 

Senior centers will be open for cooling from 9 a.m. to 4 p.m. at several locations, including Baldwin, Bellmore, Elmont, Franklin Square, Levittown, Merrick, Oceanside and Wantagh, Hempstead Town officials said.

In Suffolk County, cooling centers are run by Suffolk towns and residents should contact their local municpality to find a location near them. 

In a news release, Gov. Kathy Hochul's office urged residents to visit cooling centers and check in on "vulnerable neighbors."

"The New York State Division of Homeland Security and Emergency Services' Emergency Operations Center is monitoring weather conditions, communicating with local emergency managers and will coordinate any response needs from local governments," the release said. "The State's stockpiles are prepared to deploy assets to support localities in need." 

The heat will remain Wednesday and Thursday, with highs both days about 93. There's possible relief after 2 p.m. Thursday with a 30% chance of thunderstorms, according to the weather service. On Friday, another day with temperatures in the low 90s is in store, along with sunny skies. The low Friday night will dip to 72.

A small craft advisory remains in effect from Sandy Hook, New Jersey, to Fire Island Inlet until 8 a.m. Tuesday. The advisory remains in effect until 4 p.m. Tuesday from Fire Island Inlet to Moriches Inlet, and from Moriches Inlet to Montauk Point.

Conditions will be "hazardous" for all small craft, the weather service said.

With John Valenti

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