Winter Storm — Upper Green River Basin Foothills, Wyoming

2014-12-21 · Upper Green River Basin Foothills, Wyoming

Event narrative

Snowfall amounts across the Upper Green River Basin Foothills ranged from 5 to 8.5 inches. The highest amounts fell north and west of Daniel.

Wider weather episode

A moist Pacific storm moved into Wyoming and brought heavy snow to areas west of the Continental Divide. The heaviest snow fell in the Salt and Wyoming ranges where many areas received over a foot of new snow. The maximum amount was 26 inches estimated at the Spring Creek Divide SNOTEL. Amounts over a foot also fell in the Tetons, Yellowstone National Park, and the Absaroka Range. The western valleys generally received between 6 and 10 inches of snow.

East of the Continental Divide, the same storm system produced strong winds near Clark and across eastern Sweetwater and southern Fremont counties. A tight pressure gradient and strong low level winds mixed to the ground to create the high winds. Peak speeds were registered near the foothills around Clark where a maximum gust of 92 mph was recorded. Portions of Fremont and Sweetwater counties saw wind gusts of 60 to 69 mph.

Source: NOAA Storm Events Database, event_id 549095. Narrative written by the NWS forecast office that issued the report.