These details are provided by the NWS offices in Gray Maine, and the surrounding NWS offices in New York, and Massachusetts.  I have modified some of the technical stuff to help make it more understandable for the average reader. Spelling and grammer issues can be directed to the NWS office in Gray Maine.

Last update: 2/04 - 5:16 PM

NEAR TERM /UNTIL 6 AM SUNDAY MORNING:
The end of the brief but intense cold snap is nigh. WAA(Warm Air Advection) is already occurring in a deep layer as clouds increase from the southwest this evening. The main question is how fast the winds come down and how quickly the clouds come in. It appears that at least portions of northern NH and a good portion of our ME forecast area could radiate for awhile. Have attempted to take this into account in our hourly temperature grids. Otherwise, near steady or rising temperatures late tonight with cloudy skies. Snow showers in the mountains possible late.

SHORT TERM /6 AM SUNDAY MORNING THROUGH SUNDAY NIGHT:
A mostly cloudy day is in store Sunday with snow showers possible in the mountains. However, high temperatures will be a good 30 degrees higher than today's values. Will probably see mid 40s in the far south which may feel like summer to some folks.

Sunday night will feature a cold front approaching from the west. Some light snow or snow showers will be possible in the mountains and portion of the CT River Valley late. Otherwise it will be dry with lows in the 20s.

LONG TERM /MONDAY THROUGH SATURDAY:
Overview: Strong low pressure will develop and pass over the open Atlantic Monday, while high pressure drifts over the region. Some snow showers will be possible in the mountains, with otherwise mostly dry conditions. The next chance of widespread precipitation will be Tuesday night into Wednesday as a front quickly passes through. Another weather maker will follow up Thursday into Friday with the chance for greater amounts of precipitation as it advects moisture northward.

Details: Upper jet will be strengthening along the east coast as uppr trough begins to tilt negative. These features are more likely to bring in a region of very dry air to the region vs moisture from developing low pressure over the open Atlantic. While a trough will be weakening at the surface, the only precip chances currently would be to the mountains in the morning and early afternoon. Did mention the brief chance of snow showers crossing into the foothills once flow becomes unblocked w/ passage, but dry air reigns supreme aloft despite some remaining low level moisture.

The only real noticeable effect from this front will be breezy conditions Monday afternoon amid cooling temps. Monday night is expected to be cooler based on added CAA(Cold Air Advection) behind the front and the potential for a good radiational cooling night. Winds should be slackening in the evening by midnight, with very little to speak of for cloud cover. Utilized some MOS(Model Output Statistics) data to bring overnight lows down...into the teens and lower 20s for the coast and southern NH...and single digits for the interior and mtns/foothills.

Tuesday will feature increasing clouds in the form of high clouds during the morning. Eventually, lower clouds should develop ahead of an incoming front from the west. Onshore return flow will also promote another front of low clouds that could plunge northward in the early afternoon. The NAM is most robust with this, and expect other hires guidance to follow suite once they are in range. Depth of the moisture is in question, as it could bring drizzle or flurries. However, it will need to overcome dry air at the surface for this to occur. Temps should rebound quickly in the morning based on the veering surface flow. These temps should then stay steady into the evening and a good portion of the overnight during WAA(Warm Air Advection).

This will be ahead of an advancing cold front which could pack a decent amount of precip on the front end. A wide region of lift will be present ahead of the system as mid level jet exit region pushes through with intensifying LLJ(Low Level Jet) along the coast. Moisture should have at least a brief connection with moisture running up the TX coast, through the Ark-La-Tex region and TN Valley, into southern New England. Far to travel and a thin path, but IVT shows this brief connection. Ensembles bring just about a half inch of Precipitable Water Values into ME. Precip type is currently set for mostly a snow event, but this weighs on the trough to the north being strong enough to displace a ridge to the south that had taken up a portion of the Northeast. Residence time is short, and this along w/ moisture will likely be the greatest determining factor of potential snowfall, and these appear to be trending light at this time.

Brief lull between systems Wednesday into Thursday morning before the next system takes shape. Still a broad range of timing and development for this system. But, it will have the potential to have more moisture and redevelopment of low pressure in the region for additional precipitation next weekend.

Temperatures through the week look to return to above normal, for normal to below normal values possible overnight if good radiational cooling patterns set up. However, when looking at the anti-diurnal trend setting up during the beginning of the week, these nights may be few or far between.