Winter Storm Nemo arrived in New York City early Monday morning but the worst of the snow has yet to hit.

The snow is expected to intensify by the afternoon, with blizzard conditions kicking at around 9 p.m. as the National Weather Service issued a blizzard warning on Friday. The weather warning for the New York City area remains in effect through 1 p.m. on Saturday.

The storm will start to get heavier around rush hour in the New York City metropolitan area which may see up to 18 inches of snow. However, a majority of the accumulation will likely occur overnight as mix of rain and slush is expected throughout the day. One to two inches of snow is expected to hit the city per hour, according to The Huffington Post.

The Weather Channel is providing live updates and maps of the storm's track.

The path of the storm will continue to head north and Massachusetts will reportedly see the worst of Nemo on Friday, with over 2 feet of snow or more in some areas as well as snow drifts up to 5 feet, according to The New York Times. The worst conditions for Boston are expected between 2 and 5 p.m. Friday with coastal wind gusts that could reach around 70 mph.

Travel will be impossible during the worst of the storm and could be disrupted for several days, and 1,700 flights scheduled for Friday are already cancelled, according to FlightAware.com.

As Nemo continues up the East Coast, Maine is predicted to feel the wrath of Nemo on Saturday, with forecasts calling for the largest snowstorm since 1979.

Around 4 inches of snow has already fallen in Portland as of Friday morning and at least a foot is expected total. Maine still is not expected to see the heaviest of the snow until Saturday between 9 a.m. and noon.