Lezak’s Recurring Cycle

Those TV weather guys are often rather strange. One took note of a pattern in winter storms and now uses his idea of recurring cycles to aid in his forecasting about winter storms. Lezak’s Recurring Cycle posits that a unique weather pattern sets up in October or so each year to establish atmospheric conditions. That pattern cycles and repeats over and over during the winter until it slowly falls apart during the next summer.

LRC & April 10th Storm says

We are currently in the fourth cycle of the LRC which has had a cycle length between 45 and 54 days centered at right around 49 to 50 days. A major storm is now expected to form over the western states. We can go back to cycles 1, 2, and 3 and see very clearly this part of the weather pattern and how it is now repeating in cycle 4. Remember it isn’t just this one snapshot in time, but the entire weather pattern that is cycling. Take a look at the next three maps, and you can click on any map to make it a larger picture:

This year has been particularly interesting as the storm cycle is on top of the La Niña phase of the Pacific Ocean’s tropical temperature pattern. As wikipedia notes “Expected La Niña impacts during November – January include …

For the contiguous United States, potential impacts include above average precipitation in the Northern Rockies, Northern California, and in southern and eastern regions of the Pacific Northwest. Below-average precipitation is expected across the southern tier, particularly in the southwestern and southeastern states.

That is what has been the case in the 2010 – 2011 Winter with near record snow in the Sierra’s reinforced at intervals during the winter. Since this cycle is just shy of two months, anybody planning monthly meetings requiring travel might want to see if they can use the idea to help plan meeting dates.

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