BOSTON (WBZ-AM) -- The third nor'easter in as many weeks is dumping heavy snow across much of Massachusetts and bringing blizzard conditions to the eastern part of the state.
A blizzard warning is in effect until 8 p.m. for all of coastal Massachusetts, Plymouth County, the Cape, and Islands. The rest of the state was under a winter storm warning.
In Boston and several other areas, the storm was officially confirmed to be a blizzard mid-day Tuesday.
Weather Service: It's Officially a Blizzard
The heaviest snowfall was expected to end by late afternoon across much of the state, but snow could continue falling until around 5 a.m. Wednesday in Boston.
The National Weather Service said Boston was in the 12-18" range, while parts of the Cape and South Shore could see as much as two feet.
Nor'easter Could Break Boston Record for March Storm
Snow is expected to fall at rates of 1-3" per hour.
"This particular storm that we're seeing now is really going to be, from a snowfall perspective, the most significant of all of them--and probably the most significant so far of the season," MEMA spokesperson Chris Besse said.
Update: Here Are The Latest Snowfall Totals From Tuesday's Storm
In addition, wind gusts could reach 50-60 mph, threatening to down trees and power lines and cause more power outages.
MEMA's power outage map showed more than 233,000 people without power as of 2 p.m. Tuesday.
The snow and wind were also creating dangerous travel conditions--which is why Gov. Charlie Baker and Mayor Marty Walsh urged people to stay home if they can.
"The biggest thing is, if people can stay off the roads during the height of the storm, please do so," Besse said. "During the day and the morning commute, it's really going to be hazardous driving between the winds, the heavy snowfall, and just very low visibility."
A speed restriction of 40 mph was in place on I-90 from the New York border to Interchange 14 in Weston.
Logan Airport showed cancellation after cancellation early Tuesday morning.
The MBTA and Commuter Rail were both operating on reduced schedules Tuesday. Those schedules could be found at mbta.com/winter.
Officials were also concerned about coastal flooding, as in the last two nor'easters to hit the area this month.
A coastal flood warning was in effect on the coast from Hull to Plymouth, Cape Cod, and Nantucket--with a coastal flood advisory for Dukes and Essex counties.
WBZ NewsRadio 1030's Ben Parker reports