Dec 30, 2014 8:23 PM
Clayton Stiver's 7-day NH1 Forecast for Wednesday, Dec. 31, 2014
Source: NH1 Chief Meteorologist - NH1.com
A broad dip in the jet stream will remain locked in place across the Granite State and the Northeast for the rest of the week. This setup will keep temperatures at or below normal for this time of the year. High pressure in control at the surface overall will continue to make for quiet weather for several days.
A series of weak cold fronts and weak upper level disturbances will track through the next several days. Isolated flurries or snow showers will be possible but little or no snow accumulation is expected. A cold front will gradually sag south of the region Friday Night as high pressure builds in from the west. This high pressure system will crest over the region Saturday and provide a northeast wind to re-enforce a seasonably cold air mass.
Our weather looks to get a little more interesting Saturday Night into Sunday. Low pressure will track north to near the Eastern Great Lakes Saturday Night. A secondary low pressure system will develop around southeastern New England Sunday Morning and track northeastward. The air mass for much of NH will initially be cold enough for the storm to start as snow; however, depending on how fast the secondary low develops and the exact track it takes...a mix of sleet, freezing rain, and rain could take over. Snow and ice accumulations certainly look possible at this time but it is too early to make any calls on amounts. This forecast is very much subject to change so stay tuned!
High pressure and a very cold air mass look to build in for the start of next week.
New Year's Eve: Partly sunny, isolated flurry possible, little breezy and cold, highs 23-27. New Year's Eve Night: Partly cloudy, cold, lows 10-15. New Year's Day: Sun and clouds, isolated flurry possible, little breezy and cold, highs 26-30. Friday: Sun and clouds, isolated flurry possible, highs 30-34. Saturday: Mostly sunny (a chance of snow at night), highs 27-31. Sunday: A chance of snow, mixed with sleet, freezing rain, and rain, highs 33-37. Monday: Mostly sunny, windy and cold, highs 22-26. Tuesday: Sun and clouds, quite cold, highs 15-19.