Feb 12, 2015 11:04 PM

Clayton Stiver's 7-Day NH1 Forecast for Friday, Feb. 13, 2015

Source: Clayton Stiver

High pressure moves back in for Friday leading to sunshine. The high will keep fair skies in place through the morning hours Saturday. A decent dip in the jet stream will allow arctic air to move back across NH. Cold temperatures are expected from Friday through the beginning of next week.

Things look quite interesting for Valentine's Day PM into Sunday. Initially, another "clipper" system will swing through, but this time, it will slow down just off Cape Cod and rapidly intensify as it moves north-northeastward. This storm will build into a major Nor'Easter as it moves through the Gulf of Maine and the Canadian Maritimes. Another significant snowfall can be expected for much of the Granite State with many seeing 6"-12" of snow with 12" or more possible for portions of Rockingham, Strafford, and Carroll Counties. Gusty winds will also make for blowing/drifting snow and reduced visibility (blizzard conditions possible for the Seacoast). Minor coastal flooding and beach erosion will also be possible a few hours either side of the 7am high tide on Sunday.

High pressure will once again settle back in for the start of next week leading to quiet weather. Yet another storm system could potentially bring significant wintry weather to NH for Tuesday Night into Wednesday.

Friday: Mostly sunny, breezy and cold, highs 8-12. Friday Night: Clear to partly cloudy, lighter winds, quite cold, lows -3 to -13. Valentine's Day: Increasing clouds with snow likely mainly after 2pm, snow could be heavy at night, highs 16-20. Sunday: Snow likely mainly before 1pm, some heavy, mostly cloudy in the afternoon, windy and cold, highs 8-12. President's Day: Mostly sunny, continued breezy and cold, highs 10-14. Tuesday: Partly sunny, warmer, chance of snow at night, highs 20-24. Wednesday: Cloudy with a chance of snow possibly mixed with sleet and freezing rain, highs 27-31. Thursday: Mostly sunny, highs 19-23.

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