A 60 degree temperature swing ahead!

 A 60 degree temperature swing ahead!

Hot enough to make things uncomfortable in rooms without AC, but not quite hot enough for record highs. Yes, it can certainly get hot in September in New England. In fact, temperatures in the 90s can (and have) occurred well into October. The daily record for September 11th remains at 99 degrees, and the all-time September record at Boston-Logan is a whopping 102 degrees. We officially hit 97 on Wednesday, with heat indices well into the triple digits. In any case, it was certainly hot enough for many.

Big storms are rumbling to our west tonight, and a few may survive as brief downpours into the Boston area. But most of eastern Mass will stay dry overnight as the forcing for these storms is much weaker in this part of the region. The highest chance of seeing one overnight will be across Worcester and northern Middlesex/Essex Counties. Take a peek at an HRRR forecast, showing a simulated radar. You can easily spot the trend of storms weakening to the east.

HRRR Simulated Radar

For tomorrow, we’ll still be in a sultry summer air mass. Our winds will shift slightly to nearly due south, and dew points will stay extremely high in the low 70s. We’ll have a lot more cloud cover mixed in, due to the debris left over from previous storms Wednesday night. Those storms will spark anew as we head into the afternoon hours, but again they will start mainly to our west. The overall setup is more conducive to severe weather across the Hudson Valley and western New England, where a wind maxima will be rotating through. Shear will be higher there, and forcing stronger along the cold front.

So in these parts, we’ll be watching the radar. With a more unidirectional flow from the south through levels of the atmosphere, …read more

Source: CBS local Boston

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