Flooding on Heidi Behr Way along the Peconic Riverfront Dec. 16. File photo: Peter Blasl

A winter storm will bring rain and strong winds into the region tonight through much of tomorrow, according to the National Weather Service.

A coastal flood warning is in effect for Riverhead starting from 5 a.m. until 1 p.m. tomorrow, especially for areas along the Peconic bay and riverfront. High tides are expected to reach as much as 3.5 feet above normal during the morning high tide cycle Friday, causing moderate to major flooding.

Rainfall of 1 to 2 inches is forecast across the North Fork this afternoon, with temperatures falling into the mid 40s tonight. Rain may be heavy at times after midnight, the weather service said.

Rain showers will continue into Friday, with thunderstorms possible in the morning and a slight chance of thunderstorms and snow showers in the afternoon, according to the forecast. There is a chance of snow showers Friday evening, with temperatures falling to as low as 16 degrees.

A wind advisory is in effect from 10 p.m. tonight to 10 p.m. tomorrow. Southeast to south winds are expected to reach 20 to 30 mph, with gusts up to 55 mph. Winds will shift to the southwest Friday afternoon, according to the forecast.

Wind chills Friday evening will fall into the single digits and then drop to -5 to -10 below Friday night into Saturday morning.

A gale warning is in effect for the Long Island Sound and Peconic Bay from 7 p.m. Thursday to 5 a.m. Friday.

PSEG Long Island said in a press release that weather conditions may cause tree limbs to break, which can pull down wires, causing outages. Stay at least 30 feet away from downed power lines, especially those near water. If you encounter large pools of slush or standing water while driving, stop, back up and choose another path, PSEG said.

To report an outage or downed wire to PSEG, call the 24-hour Electric Service number: 800-490-0075, use the web chat feature at www.psegliny.com or call 911. PSEG Long Island’s MyPower map shows the latest outage information, restoration times and crew locations across Long Island.

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Alek Lewis is a lifelong Riverhead resident and a 2021 graduate of Stony Brook University’s School of Communication and Journalism. Previously, he served as news editor of Stony Brook’s student newspaper, The Statesman, and was a member of the campus’s chapter of the Society of Professional Journalists. Email: alek@riverheadlocal.com