We have one of the biggest cold outbreaks in history now diving into the Lower 48. This pattern appears to deliver TWO waves of cold of which the second is likely to be stronger since snow cover will be extensive with wave 2. Wave one lays the ground work for wave 2.

This is an unbelievable map. Something that would be highly impressive in mid winter never mind mid November.

Todays see a significant snow storm for the Twin Cities as a storm system rides the leading edge of the arctic high. Once the carpet is laid and the high sinks south, expect lows near or below zero mid to late week.

COVER IMAGE CREDIT: WeatherBug

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Note the arctic high stretches some 2-3000 miles from the pole to southern plains!

Here comes wave one. Notice the trough deepens as it pivots east through the lakes!

Here comes wave two (note the ‘kink’ in the isobars on the western edge of the trough… This new wave of cold will run over the snow laid down by wave one!

SNOW ON THE GROUND forecast by day 10!

A WILD upcoming 10 days.

Look at the 7-day MEAN 500mb heights from day 3 through 10 off the ECMWF.

CFSv2 holds cold firmly over the majority of the US next 2 weeks.

AO/PNA and to lesser extent NAO ALL favour a cold pattern for much of the rest of November…

See video for a detailed discussion…

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