Tuesday, January 27, 2009

Let it Snow? Snow is back into the picture here and it's a tricky little system. Let me explain my thinking by first pointing to why the weather service is forecasting a heavy snow. One of the numerical models is putting out 5 plus inches for the Fort Wayne area. The GFS-NAM model is putting this information. Many times I see this model over-doing precipitation, especially with snowfall forecasts. Here is my thinking on this one.










You can see in the 48 hour 850 mb plot that the low which will be responsible for this storm is well across the Northeast. I don't believe it travels far enough to the north and east for us to get into the heaviest snowfall. In fact, I put it on more of a Cincy to Buffalo track. This would bring snowfall in but would relegate the heaviest snowfall south of Fort Wayne. Maybe Bluffton on south ward may get 4 inches of snow. South of that especially in the Muncie are we could be looking at about 6"

Here is one of the models we use here at the weather center it's called Addonis and we call it Futurecast on TV. It shows the low across southern Kentucky. More importantly it takes it on a southward track.

Take a look at this snap shot early Wednesday morning. The track takes it south of Columbus, Ohio. That would put the heaviest snowfall south of our area.










Cold air will be back after that through Friday morning as 850 Celisus temperatures drop to around -12 degrees.

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