Frigid Arctic air is currently firmly entrenched across much of Southern New England, the likes of which have not been seen since mid January of 2009, and for some dating back to 2008 ! Dangerously cold weather expected overnight with temperatures in single digits to below zero for most the region, along with brisk winds at times making the feel like well below zero region wide. Bitterly cold and dry weather expected again for your Thursday with highs on average 10-22°. Friday is frigid again for most though milder air will start creep in along and south and east of the Interstate 95 corridor during the eve hours as some moisture gets infiltrated from the southwest side of a developing ocean storm well to our south and east.
The potential storm we are watching originates from Alberta Canada (Alberta Clipper) screams southeast from the Great Lakes , taps some gulf of Mexico moisture before transferring its energy off the Virginia coast or a bit further to the north into a primary low pressure system and tracks east northeast and should make a pass WELL southeast of the 40/70 benchmark. That in itself insures this is not a major event along with the added fact of the Arctic Dome to our northwest is far too heavy and will suppress most the heaviest moisture once again out of our area. This leaves the best opportunity of light-perhaps a moderate snowfall even over extreme southeast southern New England very late Friday into early morning Saturday. Snow showers and periods of light snow are possible for the rest of the interior. Still bears a bit of watching to swing some more moisture in here, but in the end it seem like more hope than reality as the Jet stream remains fairly flat and very progressive along with limited to zero blocking. Still this wont require much moisture at all to add up as ratio's look very favorable again. Any addition and any less moisture is what needs to be watch throughout Thursday and early Friday.
It also fits well with the pattern that has been in place all winter with NAO indices hovering right around the neutral phase and tough to get the “Big One”. Milder air starts to creep in Sunday and especially next week when we may return back to normal or maybe even slightly above normal for this time of year. There are indications that once again it is short lived and more cold to perhaps arctic air return in time for February . ~Anthony
UPDATED 5 DAY FORECAST GRAPHIC FRIDAY-TUESDAY
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