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Ocean Effect Snow and its impact on Cape Cod, MA and Islands


USCAPEWEATHERAF

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Look Ray, every time a major lake effect snow event looks this good at day 4 and actually happens, much more snow falls instead especially with these LES events.  Was the BUF event last year forecasted 4 days out no, it happens within 2 days of time.  We will leave on Thursday morning, arrive there in the afternoon, we wouldn't miss much in the way of snow as 850mb temps cool.  Then the real stuff happens Thursday night, we take video nonstop of the event.  We need a driver and a decent vehicle.

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There are sort of 3 types of OE stuff. Direct ocean effect which is just bands of snow off the ocean. Ocean enhanced, which show up as a band, or cellular echoes moving from east to west across SE MA. These tend to be rimed flakes, but will add to totals. There is also the coastal front type ocean effect in which moist air is lifted up and over CF across SE MA. Ocean enhanced stuff happens a lot and does not need a big temp differential. A 50kt LLJ slamming against the coastline will do it. I see it often. Very notable in rain events. 

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