It was a brisk, blustery but brilliantly bright start to Tuesday up and down the Eastern Seaboard this morning as an intense low exits into Atlantic Canada while high pressure builds in from the Upper Midwest.

Great sunrises in the eastern cities.

Despite the sunshine, winds were intense over Mount Washington this morning where a gust of 133 mph was recorded.

This built up the snowdrifts.

A fresh batch of heavy snow fell from Sierra to Wasatch within the last 36 hours.

Today the focus is on the Intermountain West snowstorm which slides east tonight into Wednesday. With winds increasing on the rear as the low gains energy from the Gulf, blizzard conditions will break out over southeast Wyoming, western Nebraska and possibly Colorado.

With the recent series of snowstorms, we’re seeing epic snowpack and ski conditions in the Colorado high country. Loveland Ski Area has just cracked the 300″ mark for the season.

With the low entering the Plains and by tomorrow and Great Lakes Thursday, so the eastern high slides off the East Coast and winds turning SW pumping warm air north.

Note the near 100 degree high for the Rio Grande Valley, ne Mexico, Yucatan and Cuba.

In between the contrasting air masses, you have the battle zone where flash flooding, severe weather and tornadoes is likely.

Here’s the GFS meteogram for NYC.

Note temps climb towards 70 midweek then barely reaches freezing this weekend with lows near 20.

More detail on the upcoming arctic blast tomorrow.

See this morning’s video.

[/s2If][s2If current_user_cannot(access_s2member_level1)][magicactionbox id=”18716″][/s2If]