When one system exits, another system arrives. That is the case for New England until further notice. After a brief break from the unsettled weather over the weekend, a new area of low pressure is working across the country, poised to strike New England. This upcoming week will be similar to last week, although it won't be exact as it's a different set up.
An area of low pressure will very slowly crawl across the Great Lakes early next week. This track will send an associated cold front across New England on Monday. A secondary area of low pressure will likely develop along the front. The timing of this front has slowed significantly versus model runs from the previous couple days. After isolated showers in the morning, the bulk of the rain will not begin until after sunset Monday.
Showers will begin to break out from southwest to northeast Monday evening through Tuesday morning as the front approaches. A steadier rain will likely break out quickly after showers begin. This steady rain will be very widespread, nearly all of New England will likely see a quarter to a half inch of rainfall Monday evening through Tuesday midday.
The Green and White Mountains will likely be the jackpot for rain, with up to an inch possible in these areas. This does not look like a soaking rain, so totals will likely not get too high. Areas on the map below are more likely to underachieve than overachieve at this time. This will be very beneficial rain for Vermont, which is currently the driest place in New England.
Moisture from the cold front does appear to begin fizzling out as it pushes north, so northern Maine will not see much rain at all. The northern tip of Maine may not see any rain fall during this storm.
This front is slow to arrive thanks to blocking, and once this system arrives, that same blocking will make this rain slower to exit. Steadier rain will end southwest west to northeast on Tuesday, but clouds and showers will linger region wide for much of the day.
Beyond Tuesday, this week will be rather unsettled as the main area of low pressure slowly pushes east past the Great Lakes and into the northeast. There will likely be afternoon thunderstorms and showers for much of the region Wednesday, with the possibility of strong thunderstorms across southern New England.
Unsettled weather will likely persist through Friday, with afternoon showers or thunderstorms possible through this week. There will be breaks in the shower activity with no washouts expected, much like last week. New England could also catch another break this weekend, but with a system exiting on Friday and another poised to come through early next week, the weekend forecast is very much up in the air.
Despite the unsettled weather, temperatures are looking to be seasonable with most topping out in the 70s throughout the week, with the exception of a cool Tuesday. As long as this unsettled pattern continues, there will not be much summer heat. Temperatures will continue to favor being below average until a major pattern change occurs, and that is not in the forecast at this time.
As mentioned before, this unsettled weather will continue until further notice. There are no clear signs of when this pattern will end as a parade of low pressure systems looks to continue through at least early next week (June 19-20).
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