Winter Weather Advisory issued December 15 at 12:07AM MST until December 15 at 5:00PM MST by NWS Riverton WY

* WHAT…Snow. Additional snow accumulations between 2 and 4 inches
expected for a majority of the Park. Higher totals are expected
for Madison and Pitchstone Plateaus, where an additional 10 to 14
inches are expected.

* WHERE…Yellowstone National Park.

* WHEN…Until 5 PM MST this afternoon.

* IMPACTS…Travel could be very difficult to impossible.