#2 Postby PurdueWx80 » Sun Feb 27, 2005 9:52 pm
The surface prog on the NAM shows temperatures in the middle to upper 40's in ATL at that time. It might be best to look at the low-level thickness scheme here (1000-850 critical thickness) which indicates that it will be much too warm at the surface to snow that far south. Thicknesses are so low because the upper low is so strong, and digging, but the low-level cold air hasn't made it's way far enough south by then for frozen precip.
Meanwhile, the NAM is further east with the low, but it brings low-level warm air into the NYC just in time for the heaviest precipitation. I'm sure it will be a VERY close call, but even w/ the further east track, enough warm air may sneak in to change snow over to heavy rain in the city.
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