Dec 1, 2015 11:39 PM
NH1 Chief Meteorologist
Wednesday is going to be a wet day. No other way to spin that. A good day for the raincoats and umbrellas. The morning will start off with a little fog and drizzle at dawn, but the rain will quickly be filling in. A warm front will be lifting north and providing the necessary lift to trigger the periodic rain through much of the morning as the warmer air aloft will be overriding the cooler air at the ground. Meanwhile, a cold front will be pushing eastward during the day with a developing low riding up along it. This will come with a heavier batch of rain which will be pushing through during the afternoon and evening. Total rainfall will range from .50-1" by the time the rainfall begins to wrap up after midnight Wednesday night into early Thursday morning.
The Low will tracking right through New England during the overnight and be just off the coast early Thursday morning. Low clouds will start the day with the chance of an early shower. Any leftover moisture or showers will be changing to snow in the northern mountains across NH. Snow will begin during the morning and continue through Thursday night. Gusty NW winds will develop Thursday afternoon as the low pulls away. These NW winds will be up sloping up the north facing slopes with accumulating snows of 1-3" in the lower elevations with up to 3-6+" across the northern summits. NW winds will downslope and dry out the air as it descends down the mountain. I expect skies to become partly sunny across central and southern New Hampshire Thursday afternoon, with highs in the mid 40's, but temps dropping by sunset with cold air advection settling in for a colder night.
High pressure returns with sunshine for the weekend with highs in the 40's nearing 50 by Sunday. We will be watching the east coast next week for a more powerful Nor'easter to last the coast with wind and rain likely sometime Tuesday night and Wednesday, but it is far enough a way to not take too seriously at the moment. Just something we are watching in a trend where temps will stay above average in the 40's while the norm this time of year is 42. The Climate Prediction Center has a very warm optimistic look for the month of December. So it is in an El Nino winter. It will be tough to get snow in this pattern, but just because it is a mild trend...does not we will not get any snow. Sometimes things come together just right. This year...that is what it's going to take!
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