We have a large and powerful storm system continuing it eastward journey through the Lakes and eventually up into Canada. It’s brought all weather types with heavy snow and blizzard conditions across parts of Wyoming, Nebraska and into Colorado, summer-like warmth up the East Coast while there’s been devastating tornadoes over parts of Oklahoma and the South.

Note in the below visible and water vapour images how there’s cold dry air flowing in from the northwest while warm, moist air flows up from Mexico and the Caribbean, merging over the Midwest where there’s been severe weather and flash flooding.

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Here’s a scene from the system’s cold side.

Ahead of the system.

Sun & 70s for NYC and I-95 yesterday, some 80s today!

In between…

A clipper system dives ESE across the Great Lakes and Northeast this weekend and looks likely to lay down a significant 3-6, locally 12 inch swath.

In the Northeast, the warmth prevails for now thanks to a strong southwest flow.

This warmth was accompanied by stiff, gusty winds.

DC reached 83 degrees this afternoon. Warmest of the year for them.

ECMWF forecasted temps this afternoon.

Clipper 1

Clipper/system 2

A huge drop in maximum temperature between today and Sunday.

Check out the vast thermal gradient between DC and Boston Monday as the second system pushes through.

There’s 3 waves of cold which follow each system over the next 5-7 days with each one colder than the last.

More tomorrow.

See today’s video.

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