New England Weather This Week: Busy

New England remains in an active pattern with multiple systems set to move through this week. Zonal Flow will be in place, so these systems will generally be quick-moving and low-impact. With all these systems moving through, it will be a breezy week as well.

MONDAY & TUESDAY

A southerly flow ahead of an approaching system will allow for a decent warm-up today after a pretty cold start. Surface high pressure will slide away from New England through the day today as a cold front approaches from the west. At the same time, a developing southern stream system will pass New England well offshore this evening and into the overnight hours. These two features will bring the region a widespread quarter to half inch of rain through Tuesday morning.

Some showers from the southern stream system may push into southern New England as early as this afternoon, but a bulk of showers will come more toward this evening from the cold front. Showers will quickly move west to east this evening through the overnight hours. They will likely be exiting Maine by the pre-dawn hours Tuesday, with only mountain rain and snow showers lingering behind.

Below: HRRR showing potential weather around mid-afternoon today (1st image) and later this evening (2nd image):

After the frontal passage, winds will shift to the west, which will allow for efficient mixing and gusty winds. The pressure gradient will tighten on Tuesday with the strengthening system to the east and building high pressure to the west. The system to the east will once again drop to sub-980 millibars while the high pressure to the west will sit around 1,030 millibars. This difference will support gusts of 35-45mph Tuesday afternoon. Other than the winds, it will be dry and chilly, with temperatures a notch lower than Monday, along with a chilly breeze.

Below: Pressure and flow Tuesday afternoon, showing New England once again caught between high and low pressure, a recipe for high winds:

WEDNESDAY & THURSDAY

New England's next system will dive through New England later Wednesday into Thursday morning. Overall, Wednesday and Thursday's setup will be pretty similar to Monday and Tuesday. A big difference will be that it will be a notch cooler. Wednesday afternoon, a strengthening Alberta Clipper will dive into northern New England, bringing the next round of showers. These will move west to east from the evening through the early morning hours.

Alberta Clippers tend to deposit the most amount of precipitation on their north sides. With the system moving through northern New England, it will be the northern tier of the region that sees the most, with a widespread quarter to half inch. Central and southern New England will likely see much lighter and spottier shower activity, with a tenth to quarter of an inch.

Below: Euro showing potential weather early Thursday morning, with widespread activity across the north and more scattered activity across southern New England:

There is a spread in the exact track, which will determine just how widespread any mixing and snowfall can get across northern New England. Some guidance does show a strong enough system that can spread some snow further down into the mountain valleys Wednesday night.

Overall, the system may start as snow or mixing in the mountains during the day Wednesday before switching to mainly rain. Snow levels would then drop Wednesday night into Thursday as the temperature drops. Any snow accumulations will be light, but this system may represent the first accumulation on roadways this season.

Below: GFS showing potential weather Thursday morning, with more widespread wintry precipitation falling across the higher elevations of northern New England:

Thursday during the day will be very similar to Tuesday, with a tight pressure gradient and windy conditions as the system pulls away. Afternoon gusts will likely once again be in the 30-40mph range. It will generally be colder than it was on Tuesday as well, with highs struggling to reach the 50s anywhere in the region.

FRIDAY & WEEKEND

Thursday night and much of Friday will likely see high pressure win out across New England, with lighter winds and dry weather (outside of potential mountain showers). The next system blows through later Friday through Saturday morning. This system will once again play out like the others earlier in the week. A quick round of (mainly overnight) showers will be likely across the region.

Yet another system looks to push through Saturday night through Sunday, bringing more of the same as all the others. It should be noted that tides will be reaching their astronomical highs this week, so, while these systems will generally be weaker and low-impact, some minor coastal flooding will be possible, especially during this upcoming weekend.

Below: Current weather map for Sunday morning (November 9):