LA NINA AND MILD WINTERS. WHAT HAPPENED LAST WINTER?

The Pacific La Nina has existed during the past two winters.

La Nina is usually related to mild winters for much the eastern U.S. But the winter of 2010-11 was anything but mild! The north Atlantic low pressures combined with cold Arctic air dominated overwhelmed the La Nina effect. That is why this winter has not been so cold.

As far as rain is concerned, this winter’s lack of rain is also similar to a TYPICAL LA NINA winter. Much of Florida is having a MODERATE TO SEVERE DROUGHT. Last winter was not only NOT TYPICAL in temperatures, it was also NOT TYPICAL with rainfall. It was WET with the December 2010 -January 2011 rainfall 11 inches more than normal!

We keep watching what's happening up north!

The cold winters of 2008-9 and 2009-10 brought big snows and bitter cold to the northeast U.S., and abnormally cold weather the past two years to our part of the country. This winter we have had a warm December, and except for a brief cold snap on January 3 and 4, a mild January. The previous two cold winters saw the Arctic Oscillation dip into minus 3 to minus 5 range. This winter it has risen to plus 3, but winter may not be over. This index has dipped to the minus 2 range since the end of January and we may not be out of the woods through mid-February. Punxsutawney Phil may have been right!

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2 Responses to “LA NINA AND MILD WINTERS. WHAT HAPPENED LAST WINTER?”


  1. 1 boatman1 February 9, 2012 at 12:49 pm

    i have been watching you since the day you started…….actually got a degree in meteorology from univ. of hawaii, mostly because of you, but ended up in boat design/manufacturing.

    john is good and very personable……a good choice for the torch-pass.

    of all your assistants, i always thought he was the best.

    i’m still watching here…….nice to get your climatology.

    i can only guess your health issue was arterial/heart.

    this has saved my life and many of my friends.

    all the best to you always.

    http://www.paulingtherapy.com/

    • 2 geotv4 February 10, 2012 at 1:38 am

      Nice to hear from you. At the age of 80, I am still learning. In studying our atypical winters, I have been late in discovering the Arctic Oscillation Index and it’s relation to opening the door for cold air mass invasions into the eastern/southern U.S. It was a week ago (Feb 2) that I saw the chance of the freeze that is now appearing in the forecasts for this weekend (Sunday and Monday). Fortunately, this is not going to be a severe freeze, but in light of the 25 days of reaching 70 since the first of the year, it is a reminder that we can still get a few more winter-like cold snaps. Yes, my health issues are heart related. Since my recovery from cardiac arrest, I learned that we are not alone being the recipients of the today’s miraculous life-saving medical advances in heart care and cardiology.


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