After some respite across the US from the extreme cold to start January, the pattern is resetting and going back to where it was to start 2014. The Pacific high is intensifying once again and so the cold now over the Plains and Midwest will grow deeper next week. The current ridge-trough set is such that the cold over the Midwest is a more typical brand for the time of year but as the ridge begins to build up into Alaska, the Pacific air that’s currently mixing with the NW flow, will get cut off.

That flow driving a series of clippers south will begin to tap the pure arctic air this weekend and drill it south into the Midwest next week. Expect the pattern to go to the extreme mid next week to mid the following week. The cold may get to the same bitter depths as the last outbreak.

[s2If current_user_can(access_s2member_level1)]

First we must replenish some of that snow cover. The clippers will help bring a lot of reflective white to many including the Ohio Valley and Northeast.

Here’s the GFS snow forecast through Tuesday.

120 hrs

The GFS is going to the extreme.

Here’s the GFS 500mb height anomalies through the next 14 days.

7 day mean

7-14 day mean

Check out the colder and colder 850s with each wave.

Wave 1 (current)

Second wave comes down on the heels the of weekend clipper (No. 3)

126 hrs (21st)

156 hrs (23rd)

3rd and biggest wave of all comes in the last week and could rival the outbreak during the first 7 days of the month!

264 hrs (27th)

See Video from earlier!

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

Tags: cold, cold blast, polar vortex, snow, US Arctic Outbreak, winter