KRIW issues SPS valid 2019-12-06T21:42:00Z 203 WWUS85 KRIW 062142 SPSRIW Special Weather Statement National Weather Service Riverton WY 242 PM MST Fri Dec 6 2019 WYZ025>027-071300- Upper Green River Basin Foothills-Upper Green River Basin- South Lincoln County- Including the cities of Pinedale, La Barge, Big Piney, Farson, Kemmerer, and Cokeville 242 PM MST Fri Dec 6 2019 ...Patchy dense freezing fog to redevelop tonight... This is a Special Weather Statement from the National Weather Service. * WHAT...Areas of dense freezing fog and low clouds. Visibility less than 1/2 mile is possible in some locations. * WHERE...Portions of Sublette and southern Lincoln counties. Likely areas include, Big Piney, Pinedale, La Barge and Kemmerer. * WHEN...Tonight through Saturday morning. Fog will likely dissipate by late morning. * ADDITIONAL DETAILS...Travelers are advised to be cautious when driving through these areas. Please slow down and allow plenty of stopping distance, and use only low beam headlights. Patchy black ice will also be possible due to the freezing fog. $$ WYZ017-071300- Wind River Basin- Including the cities of Riverton and Shoshoni 242 PM MST Fri Dec 6 2019 ...Patchy dense freezing fog is expected through the morning hours... This is a Special Weather Statement from the National Weather Service. * WHAT...Patchy dense freezing fog. Visibility less than 1/4 mile is possible in some locations. * WHERE...Low lying areas of the Wind River Basin, including along the Wind River and Boysen Reservoir. Areas near Pavillion, along with 8 Mile Rd and Missouri Valley Road north of Riverton. * WHEN...Tonight through Saturday morning. Fog will likely dissipate by late morning. * ADDITIONAL DETAILS...Travelers are advised to be cautious when driving through these areas. Please slow down and allow plenty of stopping distance, and use only low beam headlights. Patchy black ice will also be possible due to the freezing fog. $$ WYZ019-071300- Green Mountains and Rattlesnake Range- Including the city of Jeffrey City 242 PM MST Fri Dec 6 2019 ...Strong Gusty winds Saturday... This is a Special Weather Statement from the National Weather Service. * WHAT...Southwest winds 20 to 25 mph with gusts up to 50 mph. * WHERE...Southeast Fremont and southwest Natrona counties, including Beaver Rim, Bairoil and Alcova Reservoir. * WHEN...Saturday morning through Saturday evening. * ADDITIONAL DETAILS...Travel could be difficult over Highway 789, especially for high profile vehicles. Strong cross winds will enhance the blowover risk for lightweight and high profile vehicles, including camping trailers. Winds will be gusty both tonight and Saturday night. $$ WYZ003-071300- Cody Foothills- Including the cities of Clark, Cody, and Meeteetse 242 PM MST Fri Dec 6 2019 ...Gusty Winds expected late Tonight into Saturday morning... This is a Special Weather Statement from the National Weather Service. * WHAT...West to southwest winds 15 to 20 mph gusting up to 40 mph. Isolated gusts up to 50 mph will be possible. * WHERE...Foothills north of Cody, especially in the vicinity of Clark. * WHEN...The strongest winds will likely occur Saturday morning between 12 am and 8 AM. * ADDITIONAL DETAILS...Be prepared for sudden strong crosswinds if you are traveling Wyoming highways 120 or 296. $$ WYZ001-024-071300- Yellowstone National Park-Salt River and Wyoming Ranges- Including the cities of Lake, Mammoth, and Old Faithful 242 PM MST Fri Dec 6 2019 ...Significant Snow expected Saturday into Sunday... This is a Special Weather Statement from the National Weather Service. * WHAT...5 to 10 inches of snow. 12 to 18 inches possible over southwest portions of the Park, as well as the higher peaks of the Salt Range. * WHERE...Yellowstone National Park and the Salt/Wyoming Ranges. * WHEN...Saturday afternoon over Yellowstone/Saturday evening over the Salt/Wyoming Ranges through Sunday evening. $$