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After Spectacular Eclipse Weather, Wet Weather Returns Later this Week

After a stunning eclipse day, New England's weather will remain quiet for a little bit longer. Mainly cloudy skies will return to the region on Wednesday ahead of our next system. Beginning around mid-March, we began writing that New England would likely have to "thread the needle" to get a day that was decent for eclipse viewing. We managed to do just that with unsettled weather pulling away just in time and the region's next system arriving later this week.


Burlington, Vermont observed and forecast weather from April 1-13, showing April 8 & 9 as the only mainly sunny days:


Some high clouds began working into western areas of the region on eclipse day, but these did not completely obscure the sun. Farther east, there was wire to wire sunshine for the entirety of the event. During the eclipse itself in Rangeley, Maine, the temperature dropped off quickly and wind gusts that had preceded totality died off.


New England's next bout of clouds and showers will arrive later in the day on Wednesday as a front arrives. This will bring showery weather to the region. Later in the week, toward Thursday, an area of low pressure will lift to the north of New England, dragging its fronts across the region. This will bring a more soaking rain to the region Thursday afternoon into Friday.




The atmosphere will once again be primed with moisture with this system, so it will be capable of producing bouts of moderate to heavy rainfall. As of right now, the cold front associated with the system appears to be more progressive, which will help keep rainfall amounts down somewhat.


Still, a widespread 1-2 inches of rain will be possible across New England. Where the heaviest axis of rain sets up is still fluid, but guidance currently points toward southwestern New England and the White Mountains into western Maine.


QPF (liquid precipitation) through Saturday:


This will bring areas of northern New England a flood risk due to the rainfall combined with rapid snowmelt from a snowpack now primed for melting. The area of greatest concern here will be across the White mountains and into western and central Maine, where the greatest amount of rain could fall on top of the melting snowpack.


This could result in widespread minor river flooding in the mountains with potentially isolated pockets of more notable flooding. Trends will need to be watched closely over the next 36 hours.




The Green Mountains will generally see less rain than the White and Maine Mountains, so the flood threat is not as high there, but rises in rivers could still occur. With the axis of heaviest rain still a bit fluid, trends will need to be watched for Vermont.


This system will also likely bring gusty winds. A strong low-level jet will cross the region Friday morning, but poor conditions for mixing will likely limit just how strong the wind gusts can get. Overall, wind isn't a major concern at this time, but gusts of up to 40mph will be possible. Trends on the winds will also need to be watched, but this doesn't look like a major wind event.


Low-level jet of 80-85mph crossing New England Friday morning. How much of this can mix to the surface is always the question:


Looking ahead to the Boston Marathon on Monday, conditions are looking mainly dry at the moment and mild with temperatures on a warming trend. It could reach into the low to mid 60s in the afternoon. Winds are currently looking to be out of the west.


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