An Alberta Clipper comes through Fri/Sat from northern MI across northern New England. A few inches of snow and a shot of cold air. Behind this Clipper is a tropical plume...currently SW of Baja Mexico.
This will be the winter storm. Yes, classic nor'easters are bomb-like lows developing through energy conversions by mixing cold continental air and maritime air across the Atlantic coastline. This is more an El Nino signal, so just technical jargon. It'll spread snow from Nebraska across Missouri, IL, IN, OH, PA, and up into New England. NE and MO on Sunday, OH, PA, and NY on Monday, and up to Maine on Monday night into Tuesday.
As these tropical plumes propagate, they track in a more zonal fashion. Thus, Kansas City to Philly looks like the rain/snow line...snow north, rain south, ice along the line. More snow for Boston, rain to snow to NYC...a headache. I really hope Boston doesn't get rain or ice. That would be awful. There's thick snowpack across New England, and I hope this helps keep the rain/snow line around Philly. The rain/snow line rotates counter-clockwise as the low hits the coast and moves up into New Brunswick and Nova Scotia.
I see more lows reinforcing the cold air trough over the east coast of the U.S. At some point, the pattern will break down. When? This is the transition of weather to climate. A big storm changed the pattern ~Jan 22, and it brought the U.S. into the current low-frequency regime. This is the low-frequency variability that no one can predict. Maybe if funding went to study this instead of wasting time on proving "global warming" our forecasts would be much better. Sigh.
It's these slow moving patterns that dictate weather for a couple weeks to a couple of months. Changes in the solar wind can often dictate or precede changes in these low-frequency patterns. That's what I observe in my spare time. Thus, I need to study the sun spots and come up with potential changes to the pattern via solar flares...I'll do that this weekend :)
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