SI
SI
discoversearch

We've detected that you're using an ad content blocking browser plug-in or feature. Ads provide a critical source of revenue to the continued operation of Silicon Investor.  We ask that you disable ad blocking while on Silicon Investor in the best interests of our community.  If you are not using an ad blocker but are still receiving this message, make sure your browser's tracking protection is set to the 'standard' level.
Politics : Evolution -- Ignore unavailable to you. Want to Upgrade?


To: Brumar89 who wrote (65073)1/22/2015 6:19:41 PM
From: J_F_Shepard  Read Replies (1) | Respond to of 69300
 
What do the curves in total tell you???



To: Brumar89 who wrote (65073)1/22/2015 6:40:03 PM
From: TigerPaw  Read Replies (1) | Respond to of 69300
 
Here is a description of the polar vortex.
crh.noaa.gov

Note the last picture where it shows the influx of Pacfic air pushing the vortex into North America.

Smaller influx leads to cool fronts, not the headline grabbing freezes, but they are essentially the same.