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Feb 12, 2017 3:29 PM

NH1 First Alert Weather Warning: Storm brings heavy snow, then gusty winds to NH

NH1 Meteorologist

The snow is underway, and with cold air firmly in place, roads are snow-covered and slippery, and will remain that way into Monday morning.

This nor'easter is drawn out and will come in a few phases. Phase one is the snow Sunday afternoon and evening, falling up to about an inch per hour in spots. The second phase will bring lighter, but steady snow to most of the state overnight. The last portion of the storm Monday morning will bring heavier bands of snow to eastern and southeastern New Hampshire, while the rest of the state sees the snow taper during the morning.

STORM TIMING

NOW THROUGH 8 P.M. SUNDAY

Snow continues to fall around 1 inch per hour into the early evening. Roads are snow covered and slick with a widespread 4 to 8 inches of snow by 8 p.m.

OVERNIGHT SUNDAY NIGHT

The snow may lessen in intensity for a while, but overall a steady snow will continue. Bursts of heavier snow are likely in eastern and southern New Hampshire at times. After midnight, bands of snow will start to develop in Maine, and they may pivot into parts of Carroll, Strafford, and Rockingham counties. These bands may drop 1 to 3 inches of snow in just an hour.

MONDAY MORNING TO MIDDAY

Snow will be heavy early Monday morning in the eastern part of New Hampshire. School cancellations are likely and those who need to get to work will need to be extremely careful. The morning "commute" will be nearly impossible in southeastern New Hampshire with periods of heavy snow and near blizzard conditions. Farther northwest, the steadier snow will taper to snow shower during the morning, but the snow may linger into the early afternoon near the seacoast.

SNOW TOTALS, WIND GUSTS, COASTAL ISSUES

Most of New Hampshire will see between 10 and 20 inches of snow in total, with the least in western areas and the most in eastern New Hampshire. The snow will be powdery and lighter and nature farther inland. Closer to the coast, it will start as a wetter, heavier snow, but become lighter during the second half of the storm, as colder air moves in.

As the storm pulls away, the wind will shift from the northeast to the north-northwest, gusting to 40 mph at the coast and 30 mph inland Monday afternoon and evening. The strongest wind will come after the snow ends, so an official blizzard will be unlikely in New Hampshire. Blowing and drifting snow will become an issue on Monday, even after the snow ends. Scattered power outages are possible as well.

High tides are around 12 a.m. and 12 p.m. Monday. Beach erosion is a certainty due to the combination of a strong onshore wind and breaking waves. The highest waves will come on Monday, but the wind will be switching around to the northwest at that time. However, some minor coastal flooding cannot be ruled out in the susceptible areas of the seacoast.

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