Powerful Arctic Vortex To Blast The Region Once Again This Weekend!

As mentioned in my last blog; round two of a very similar Arctic air mass to the one earlier this month is slated to plow south into the Great Lakes this weekend and hold over the region well into next week. This bitter Arctic air, straight out of the Polar region and directed by another intense Arctic vortex, will drive due south into the Great Lakes and Southeast Lower Michigan on Saturday. The cold in this air mass should be similar to one experienced back earlier in the month on the 6th through the 8th when temperatures plunged below zero across the region.

What will make this air mass change especially dangerous will be the wind chills created by very strong southwest to west winds that will blow in advance of the Arctic front itself on Friday; this in spite of the warmer air moderation ahead of the Arctic front passage during Saturday. Then, the sharp, bitter colder strong north winds pushing across the land behind it on Saturday into Sunday!  A powerful low pressure system will spin up along Arctic air mass and drive snow and snow squalls along with considerable blowing snow on Friday into Saturday as it approaches. Depending on the atmosphere and wind trajectory Saturday,  snow squalls off the Lakes could be quite aggressive.

More as this system develops and particulars become more evident...

Making weather fun while we all learn,
Bill Deedler -SEMI_WeatherHistorian