Long Island forecast: Nor'easter brings heavy rain, snow and gusty winds Monday, Tuesday

A two-day Nor’easter is expected to hit the region, starting Monday, bringing heavy rain, at least a couple of inches of snow and moderate flooding to Long Island, according to the National Weather Service.

Monday will kick off with rain sometime before 8 a.m. with a high near 45. The rain will continue into the night, heavy at times. The evening low will be 33 with wind gusts as high as 40 to 50 mph. In total, up to 2 inches of rain are possible, according to the weather service, which issued a coastal flood advisory for Long Island.

“We’re mainly looking at some minor to locally moderate coastal flooding around the times of high tide both tonight and again on tomorrow night high tide cycles, which are mainly around or shortly after midnight,” said Brian Ciemnecki of the National Weather Service, referring to Sunday overnight and Monday night.

The conditions for Tuesday include a mixture of rain and snow, before becoming fully snow after 2 p.m. but forecasters warned the timing of the transition to snow was still uncertain and could be earlier. The daily high will be in the upper 30s, but wind chill values will make it feel between 20 and 25. Wind gusts are expected to be as high as 38 mph.

Snow is likely for Tuesday night, which has a low of 32. The breezy evening will feature wind gusts as high as 36 mph, with higher gusts out East, especially Tuesday night. In all, between 2 and four inches of snow is possible. Impacts could include downed trees limbs and power lines.

Conditions are expected to dry off for a partly sunny Wednesday with a high near 42. Clouds enter the mix at night with a low near 33.

Thursday’s forecast includes sunny skies with a high around 50. Nighttime will be cloudy with temperatures dipping to 35.

More sun is expected for Friday morning, which has a high near 51, before a 50% chance of showers comes in at night. The nightly low is around 43.

A 40% chance of showers with partly sunny skies and a high near 52, is forecast for Saturday. Conditions will be mostly clear at night with a low near 31.

Sunday will be mostly sunny with a high in the mid-40s, the weather service said.