During the last post, I stated that weather models were all over the place, they have since came into general agreement, Now it is how much precipitation makes it in before the 850mb 0c line makes it. This will determine how much snow we have in the area. I believe it will be a light snowfall in the terms of 3 inches being possible. Highest amounts the further north you go. This will not be the important part of this system, I believe many inland locations including many in the Merrimack Valley will see a good period of freezing rain. Snow will likely change right over to freezing rain after 3am, then most will remain on the cooler side with highs will range around the freezing point (32 degrees) which will allow for periods of rain and freezing rain through out the day. All should change to plain rain by Wednesday evening. Wednesday we will see the warmer side as temperatures reach the 50s. Periods of rain will end in the late afternoon. Then the mix of a Ridge in the west and a trough in the east, we will see generally sunny skies with highs in the 30s for the weekend.
Forecast for the Merrimack Valley
Tonight. clear, lows in the low to mid 10s
Tuesday. Increasing clouds, highs in the low to mid 30s
Tuesday night. snow likely in the evening. then periods of snow and freezing rain after midnight. Light snow accumulation possible, Lows in the mid to upper 20s
Wednesday. Periods of snow, freezing rain and rain in the morning then rain and freezing rain in the afternoon, highs in the low 30s. Minor Ice accretion possible.
Wednesday night. Periods of heavy rain, lows in the 30s.
Thursday. Periods of rain ending in the late afternoon, highs in the 50s
Thursday night. decreasing clouds, lows in the upper 20s to low 30s
Friday through Sunday mostly to partly cloudy, Highs in the 30s, but upper 20s to mid 30s north. Lows in the 10s
Sunday night and Monday, chance of snow, highs in the mid 20s to low 30s, lows in the 10s
Lots can change but the first few weeks of March could be interesting and exciting in the weather department.
Merrimack valley weather 