Monday, January 23, 2012

Mild Then Wild

Just a very brief post without any graphics as I am unable to do so this morning...but I wanted to alert everyone to the possibility that winter will be making a renewed appearance beginning this weekend and possibly continuing through much of February! The GFS ensembles and the Euro all keep the NAO and the AO negative through the end of the month. Also, both modeling groups along with the Canadian are showing a return to cold and stormy conditions beginning this weekend and being portrayed on the numerical models through their extended runs. I was telling a few of you about a former teacher's theory concerning the earth's heat balance and how not only in the long run, but in the shorter periods (within a season) that when part of the season might be anomalously warm, another part of it will be equally cold. This is simply how the earth balances out it thermal imbalances due to many physical factors. Whether we are talking a strong amplified jet or an oceanic oscillation, the nature of the physical world is to move towards higher entropy or simply greater mixing or randomness. Thus, pockets of air that tend to be warm will be ultimately replaced with pockets of air that tend to be cold...and vice versa. Sometimes this will occur gradually; other times this will occur rapidly or snap like the potential energy converting mechanically in a stretched rubber band! If the modeling is any indication, there is a very real possibility that the next few weeks could "snap" in response to the above normal temps we've been experiencing over the eastern half of the US. February does tend to be our snowiest month here in Harrisburg climatologically. Time will only tell..... Enjoy your week...and I'll keep y'all posted on the upcoming potential for another moderate snowfall late this week and upcoming weekend.... I saw this and thought it to be appropriate! I liked....
I hope it posted. Smitty AA: Mild week followed by a potentially cold and stormy few weeks into mid-February. Watching a snow potential for this weekend.

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