Wednesday's forecast is looking very difficult to really pinpoint at this time. There will be a storm coming out of the OH Valley and moving towards BUF, deepening along the way, but it will not be able to just shoot up the St. Lawrence River Valley because of our blocking to the north. This will allow a secondary to pop out somewhere between LI and SEMA. This transfer of energy will likely keep the flow near the surface from the NNE, thus keeping surface temperatures near or slightly below 32F for the duration of the event, especially north of the Mass Pike and W of 495. However, midlevels will not stay cold enough for all snow in these regions and infact warm to levels where the snowflakes will switch to rain drops. If we can keep the surface layer of cold deep enough, then we would be looking at lots of sleet, but I think it is going to be a shallow pool of cold air in these places hit hard by the DEC 11th Icestorm, thus giving more freezing rain and ice to areas that do not need it. It looks like a quick inch or two south of the Pike before a switch to sleet then rain. But north of the Pike looks good for 2-4" of snow then sleet and then a half inch of ice NW of 495. It could spell trouble. I'll have a map tomorrow.