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NAM Says Snow, Is It So? =)

28 Sep 2008, 12:20 pm

I was playing around with some of our HAMmodels this morning before church, and came across an astonishing site! My actual goal was to decide if I want to make precipitation forecasts for snow and rain as partial transparencies so they can be overlain onto topographic maps similar to what I do for our HAMrad II products.

In my annual excitement to see snow begin to fall, I’ve been watching GFS et. al. forecast snow in the Canadian rockies slowly inching in our direction. Yet today as I was playing with NAM, low and behold NAM says that snow will fall (trace – note scale at bottom) in the tri-state area of Illinois, Kentucky, and Missouri (note graphics below, click for full size) at 00 & 03z Tuesday Morning!

If you are unfamiliar with Z time, Ed Hopkins from Wisconsin has a nice little article about it.

So the question of the day is: Is NAM right? Will there be snow? Or is something sinister afoot? =)

00z Tuesday, September 30, 2008 03hr Snowfall 03z Tuesday, September 30, 2008 03hr Snowfall



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