Baroclinic War: First -40 For Rockies Next Week While Southeast Stays Warm!

Written by on December 27, 2014 in United States of America, Winter 2014/15 with 0 Comments

The stage looks set early next week with all in place for some extreme cold in the West that will eventually push south and east.

Snowfall has continued to pile up over the Rockies and West from Christmas through today.

GFS suggests 1-3ft of snow cover widely into early next week.

Credit: AccuWeather Pro

Credit: AccuWeather Pro

GFS also continues to show a surface high pressure building close to 1060mb over Montana on Tuesday with thicknesses around 504 which means some very cold air.

Credit: AccuWeather Pro

Credit: AccuWeather Pro

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2-metre temps 6z Wed (New Years Eve), yes don’t be surprised to see 40 below zero over Wyoming Tuesday if not Wednesday morning.

Credit: AccuWeather Pro

Credit: AccuWeather Pro

GFS 500mb and 2-metre temp anomalies show the war setting up between extreme cold in the N Rockies vs warmth in Southeast.

gfs-hgt--conus-72-C-500hgtanom

gfs-tmp--conus-72-C-2mtempanom

That stronger than normal Southeast ridge will sharpen the baroclinic zone in the East day 7-10 as arctic air dives out of Canada, setting the stage for increased storm potential and wild weather

Check out the thermal gradient between Florida and Montana in the GFS 168 hour surface chart.

Credit: AccuWeather Pro

Credit: AccuWeather Pro

 

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Credit: AccuWeather Pro

Credit: AccuWeather Pro

See video for more.

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