Massive nor'easter rolls into Nassau County

UPDATED, 8 a.m. Tuesday: A massive nor'easter out of the west swept across Long Island early Monday, dropping 12 to 18 inches of snow across the area by Tuesday, with wind gusts reaching 30 miles per hour.

Nassau County and town officials urged people to stay off the roads during the storm if they could.  Road conditions  were already "treacherous" by Monday morning. On Tuesday, conditions had improved, but remained icy and slick, with main roads clearer than side streets.

"Wind is going to play a signifcant role in this storm," said County Executive Laura Curran during a news conference Sunday. "We're talking about blizzard-like conditions .... It's going to be heavy, wet snow with a lot of wind."

The biggest snow fall will came between 10 a.m. and 11 p.m. Monday. The South Shore was "most vulnerable," the county executive said.

"As the day goes on, conditions are going to get more dangerous for driving," Curran said.

School districts across the county closed ahead of the storm.  A handful of districts like Franklin Square and Elmont switched to remote-only learning for the day. Most others took a "traditional snow day."

The Jones Beach vaccination center also closed Monday because of the storm.

For your hyperlocal forecast by zip code, see the National Weather Service here.

Power outages were expected. To report one, go to PSEGliny.com.

Expect delays and service disruptions on the Long Island Rail Road and NICE Bus. 

For more on NICE Bus, go to nicebus.com.

For more on the LIRR, go to mta.info.