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Jan 13, 2016 1:00 AM

NH1 Weather Insider with Joe Joyce: January 13, 2015

NH1 Chief Meteorologist

Cold air is on the move today! Roads will start out slippery for the morning commute, especially side roads which are untreated. A storm has deepened off the coast and continues to track into the Canadian Maritimes where it is turning into a much larger storm. Gusty westerly winds are directing colder air back into New England. Highs today will only be in the 20's. Winds will gust 30-40 mph. Wind chills feel in the single digits and teens in the stronger gusts. The wind and sunshine will help to dry out the roads somewhat during the day, so improvement on the roads will happen quickly as the sun gets higher in the sky. Ski Resorts have some new snow to play with, but I am concerned about gusty winds for 40-50 mph at the summits and windchills below zero. Prepare for extremes if you are heading out for the freshies Wednesday!

Weak high pressure and upper level ridging on the east coast will allow for the colder air to gradually begin to lift out Thursday into Friday with moderating temps. Thursday will still only be in the 20's with a mix of sun and clouds. Friday will climb above freezing.

All eyes will be focused on moisture coming out of the Gulf of Mexico and being directed up into the Northeast for this weekend. One low from the Midwest will track up through the Great Lakes and track west of New England, with a stronger more powerful low gathering steam off the Carolina coastline and tracking just southeast of Nantucket Saturday morning as a powerful Nor'easter! This will bring warm air along with it, so it looks like a windswept rain storm for southern New England, but temperatures will remain just cold enough for interior New Hampshire for mostly snow. Southern New Hampshire will be dealing with a rainy mix, with the potential for a brief period of strong winds at the seacoast depending on the track of the low. Where there is rain mixing in, obviously accumulations will be low. Where it remains all snow, there is the potential for up to to a half foot of snow, especially across the mountains.

Snow will be ending Saturday night. There is a potential low which could follow behind the other one and bring in a few more late day snow showers into Sunday night thanks to an inverted trough. Gusty, and persistent NW winds will deliver another blast of Arctic air for the start of next week Monday-Wednesday with highs only in the Lwr-mid 20's. Temperatures will likely average below normal in the next 6-10 day period. That is a trend we have not seen much of for the past few months!


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