Numerous U.S. states are currently subject to winter storm warnings issued by the National Weather Service (NWS). As much as 20 inches of snow is expected to fall in Alaska, while Idaho, Montana, Washington and Wyoming are all expected to be hit by considerable snowfall throughout Tuesday and overnight.

As much as 20 inches of snow is expected to fall in Alaska, while Idaho, Montana, Washington and Wyoming are all expected to be hit by considerable snowfall throughout Tuesday and overnight. The poor conditions are likely to cause difficult driving conditions and in some cases are expected to cause power outages.