There is considerable confidence that substantial precipitation will occur from Star Valley northward to Yellowstone Park with a couple feet of snow in the higher mountains. The latest computer model forecast precipitation for the next 3 days clearly focuses the precipitation in this area.
|72 Hour total precipitation ending Wednesday evening Feb 4 2015|
|500mb analysis Sunday evening Feb 1 2015|
|model sounding over Star Valley Tue pm Feb 3 2015|
The NWS forecasters at the Weather Prediction Center provide a 72 hour accumulation of snow ending Wednesday evening. They are predicting a 50 percent chance of well over a foot in the higher elevations from Star Valley to Yellowstone NP. Near 2 feet is being forecast for locations such as the Tetons and possibly the northern Wyoming and Salt Ranges as well.