Expires:201903231615;Remove:201903231615;218709 FPUS75 KRIW 231346 NOWRIW Short Term Forecast National Weather Service Riverton WY 746 AM MDT Sat Mar 23 2019 WYZ026-231615- Upper Green River Basin- Including the cities of La Barge, Big Piney, and Farson 746 AM MDT Sat Mar 23 2019 .Areas of fog this morning... Areas of dense fog will continue this morning over Highway 28 west of South Pass to areas surrounding Farson. Visibilities of a quarter mile or less will be possible in these areas. Expect these conditions to persist through 10 AM this morning. $$