Above, is the forecasted position of the jet stream for Wednesday, March 26th. You can see it runs just to the North of Erie. When the position is this close, you can usually (other things NOT considered) count on temperatures near the average. Which this time of year is 48 degrees. We are forecasting, at the time of this posting, 43 degrees.

On Thursday, the jet stream is expected to push further to the North. This will allow warm air to seep into Erie. Here, the Storm Team is looking for temperatures to get close to 50 degrees, or a little above average.

Now, on Friday, you can see the western portions of the jet stream are forecasted to start dropping a little southward. In cases like this, where the jet stream starts to get wavy (the official term is "meridonal"), you can usually count on cooling temperatures over the course of the day. While the "jet" is sagging to the south, on the surface, we are expecting a cold front to swing through the region. This is how the upper air features translate to what happens on the ground. For Friday, we are looking for early rain showers to change over to snow as our temperatures fall during the day.