❄ Immediate coastal areas will get 3-4" as a mix of rain and snow holds down accumulations

❄ Inland areas will get 6-8 inches where there's no mix

❄ Winds will gust between 35-40 mph along the coast and 25-30 mph inland

❄ Heavy wet snow could bring down powerlines

A slight change in the projected track of the next winter storm means more heavy, wet snow accumulation for most of the Seacoast region, creating a fine line for accumulations and gusty winds.

Meteorologist Jon Palmer from the National Weather Service in Gray, Maine, said a more southern track allowed more snow than rain, especially in Rockingham County.

"Overnight models took a little bit of a different track than they did Saturday which bumped the storm more to the south, which ultimately increased snow totals across the Seacoast and bumped the rain snow line to the south as well," Palmer told Seacoast Current.

A Winter Weather Advisory is in effect for the immediate Rockingham County coast line and inland Essex County from 7 p.m. Sunday until 10 p.m. Monday with an accumulation of 2-4 inches. Inland Rockingham County, Strafford County, and York County are under a Winter Storm Warning for higher accumulation of 3-6 inches.

Commuting Challenges Bring Cancellations, Delays

Both the morning and afternoon commutes will be impacted with low visibility and periods of moderate to heavy snow.

Maine state offices will be closed on Monday due to the storm.

The winter break at UNH got just a little longer as the school announced Sunday afternoon it will delay the opening of the Durham campus until 10 a.m. on Monday. It's the first day back since the holidays.

The accumulations will be held down in coastal areas as a rain/snow line develops in coastal Rockingham County Monday morning. Interior Rockingham and Strafford counties are expected to remain all snow, although there could be some mixed rain and snow as the storm exits the region.

It all creates a sharp gradient for accumulations, according to Palmer.

"We are looking at maybe an inch or two along the immediate coast. But even as we head maybe a few more miles inland from there, the snow accumulates three to five inches of snow. On the other side of the county up towards Deerfield, we are expecting almost up to eight inches of snow," Palmer said.

Winds will gust between 35-40 mph along the coast and 25-30 mph inland. The snow ends by 7 p.m.

The precipitation will be mostly mixed in coastal Essex County where a Coastal Flood Advisory is in effect.

The storm's timeline:

  • SUNDAY: Snow develops by late evening across the entire Seacoast
  • MONDAY: Snow continues inland but a rain/snow line sets up across coastal Rockingham County that will hold down accumulations. Winds will gust between 35-40 mph along the coast and 25-30 mph inland. The snow ends by 7 p.m.
Expected snow totals from snow Sunday and Monday 1/22-1/23
Expected snow totals from snow Sunday and Monday 1/22-1/23 (NWS Gray)

Parking Restrictions in Effect

The City of Dover has instituted a citywide parking ban on all city streets starting at 10 p.m. Sunday night until 6 a.m. Monday morning. Parking is also banned in the Third Street and Belknap parking lots, and the Orchard Street lot's public parking spaces.

Somersworth has a winter storm parking ban from 10 p.m. Sunday until 8 p.m. Sunday.

Rochester is banning parking on all city streets and city parking lots at 9 p.m. Sunday and all day Monday.

After several weeks of relatively quiet weather, the third winter storm within a week could be headed towards the Seacoast for Wednesday night and Thursday.

This snow accumulations from last week’s storm and this storm could create large buildups around building vents.

The New Hampshire Division of Homeland Security and Emergency Management offered some tips about fire and carbon monoxide safety.

“If you do get a lot of snow, be sure to shovel it away from any vents, and if you lose power, never run a generator inside or right next to a home. You want to make sure a generator is outside, and at least 10 feet away from windows, doors, and vents," State Fire Marshal Sean Toomey said in a statement.

Depending on the next storm's track, it could start as snow for all areas before changing to a wintry mix for Thursday. A more coastal track could bring more snow.

Contact reporter Dan Alexander at Dan.Alexander@townsquaremedia.com or via Twitter @DanAlexanderNH

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