Long Island weather: Clearing skies arriving after snow brings up to 3.7 inches, hazardous roads

Long Islanders awakened to clearing skies and wet, slushy roads Monday after a wintry mix of rain and snow fell across the region Sunday and overnight into Monday.

The clear skies will usher in a week of colder temperatures, forecasters said.unday's storm, which played out in two separate bands of precipitation, allowed sanders and plows to do their job Sunday, leaving the prospect of drying road conditions through the morning, authorities said.

Up to 5 inches were initially expected in some parts of Long Island when the storm finally passed. But the National Weather Service reported Monday the highest snowfall amounts in Nassau County were along the North Shore, where 3.7 inches were recorded in Roslyn Heights and 3.6 inches fell in Syosset.

In Suffolk, Flanders recorded the highest county total, at 2.5 inches. Smithtown came in at 2.4 inches, the NWS said.

“It wasn’t a big event,” weather service meteorologist Jay Engel said. “Temperatures were a little too warm, and we also didn't get some of the heavier bands that we thought we might get.”

An inch of snow was recorded at New York's Central Park.

Other Long Island snow totals can be found here.

Long Island's major thoroughfares, including the Long Island Expressway and both the Northern and Southern State parkways, were moving at speed through the late morning, with traffic light due to the Martin Luther King holiday, according to 511 New York.

Suffolk police said they received dozens of reports of crashes on Sunday due to slippery road conditions. One left a woman seriously injured after a 2017 Porsche fishtailed into opposite lanes of traffic on East Deer Park Road in Dix Hills, crashing into two cars.

Nassau police reported no major incidents.

Monday's forecast calls for mostly sunny skies, with a high temperature in the mid-30s and wind gusts reaching 25 mph. The wind could make it feel closer to between 15 and 20 degrees, the weather service said.

Tuesday is expected to be sunny, with a high near 22. Wind chill values will be between 5 and 10 from a west wind of 11 to 15 mph, with gusts as high as 26 mph., the weather service said.

Tuesday night will be mostly clear with a low of around 12 and wind chills between 5 and 10. 

A winter weather advisory had been in effect for Nassau County, New York City and the lower Hudson Valley beginning until midnight Monday. For Suffolk, the advisory ended at 4 a.m. on Monday. 

Most branches of the Long Island Rail Road were running on or close to schedule and operating on a weekday schedule Monday. The exception was the Montauk Branch, which was operating 15 to 20 minutes late through the morning due to equipment trouble. Off-peak fares were in effect for the holiday.

After reporting significant weather-related delays Saturday and Sunday, New York's three major airports were reporting virtually no delays on Monday morning, according to the website FlightAware.

Newsday's Maureen Mullarkey contributed to this report.