Here are the main points of the LRC: The weather pattern sets up every fall between October 1st and November 10th This pattern then cycles and repeats regularly through winter, spring and into summer Every year is unique The LRC can be used to make accurate forecasts both for the next day and seasonally
I have been monitoring weather patterns for over two decades now and sometime in the early 1990s I noticed storm systems that would occur in the early part of autumn seemed to repeat over and over again at regular intervals through that season. By the mid 1990s I noticed that it wasn't just a storm or two, but the entire pattern that seemed to be cycling. Long wave troughs and ridges that set up in early fall become the major long term long wave troughs and ridges the rest of the season. The ridge and trough combinations moving through across the northern hemisphere are all part of an overall pattern we call the LRC. And now after years of watching these weather patterns develop and cycle we have developed a technique that allows our weather team to make accurate medium and long range forecasts. In my presentation I will do a recap of winter 2009-2010 and introduce the audience to the LRC and the major influences and new findings this year.
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