Dense Fog Advisory issued December 6 at 9:40PM MST until December 7 at 11:00AM MST by NWS Salt Lake City UT
* WHAT...Visibility one quarter mile or less in dense fog. * WHERE...Northern Wasatch Front, Salt Lake Valley, and Tooele Valley. Especially along routes close to the Great Salt Lake including I-80 between Salt Lake City and Grantsville, and routes along and west of I-15 including the Legacy Highway and the West Davis Highway. * WHEN...Until 11 AM MST Saturday. * IMPACTS...Low visibility could make driving conditions hazardous. When driving into the fog bank, expect rapidly deteriorating conditions. * ADDITIONAL DETAILS...Higher elevation locations, including benches, mainly east of I-15, as well as the west Salt Lake Valley bench are largely expected
Freezing Fog Advisory issued December 6 at 7:48PM PST until December 7 at 11:00AM PST by NWS Pendleton OR
* WHAT...Visibility less than a quarter mile in freezing fog. * WHERE...North Central Oregon. * WHEN...Until 11 AM PST Saturday. * IMPACTS...Low visibility could make driving conditions hazardous.
Dense Fog Advisory issued December 6 at 2:47PM MST until December 7 at 11:00AM MST by NWS Boise ID
* WHAT...For the Air Stagnation Advisory in valleys, an extended period of stagnant air, with light winds and little vertical mixing. This is due to an inversion near the surface that will continue to trap pollutants. For the Dense Fog Advisory, visibility one quarter mile or less in dense fog. * WHERE...Treasure Valley Zones and the Weiser Basin. * WHEN...For the Air Stagnation Advisory, until 5 PM MST Saturday. For the Dense Fog Advisory, until 11 AM MST Saturday. * IMPACTS...Poor air quality may cause issues for people with respiratory problems. Low visibility could make driving conditions hazardous. * ADDITIONAL
High Wind Watch issued December 7 at 1:54AM MST until December 7 at 11:00AM MST by NWS Cheyenne WY
* WHAT...For the High Wind Watch this morning, west winds 25 to 35 mph with gusts up to 60 mph possible. For the High Wind Warning starting later today, west winds 35 to 50 mph with gusts up to 75 mph possible. * WHERE...Bordeaux area along Interstate 25 between Chugwater and Wheatland. * WHEN...For the High Wind Watch, until 11 AM MST this morning. For the High Wind Warning, from 8 PM this evening to 5 PM MST Sunday. * IMPACTS...Mainly to transportation. Strong cross winds will be hazardous to light weight or high profile vehicles, including campers and tractor
High Wind Watch issued December 6 at 11:11AM MST until December 9 at 11:00AM MST by NWS Glasgow MT
* WHAT...West winds 20 to 35 mph with gusts up to 60 mph possible. * WHERE...Southwest Phillips County. * WHEN...From Saturday evening through Monday morning. * IMPACTS...High winds may move loose debris, damage property, and cause power bumps. Travel could be difficult, especially for high profile vehicles. * ADDITIONAL DETAILS...Slightly higher winds are possible again Sunday Night.
Dense Fog Advisory issued December 5 at 5:37PM MST until December 6 at 11:00AM MST by NWS Salt Lake City UT
* WHAT...Visibility one quarter mile or less in dense fog. * WHERE...Northern Wasatch Front, Salt Lake Valley, and Tooele Valley. Especially along routes close to the Great Salt Lake including I-80 between Salt Lake City and Grantsville, and routes west of I-15 including the Legacy Highway and the West Davis Corridor. * WHEN...Until 11 AM MST Friday. * IMPACTS...Low visibility could make driving conditions hazardous. When driving into the fog bank, expect rapidly deteriorating conditions. * ADDITIONAL DETAILS...Higher elevation locations, including benches, mainly along and east of I-15, as well as the west Salt Lake Valley bench are largely expected
Freezing Fog Advisory issued December 5 at 5:17PM PST until December 6 at 11:00AM PST by NWS Pendleton OR
* WHAT...Visibility one quarter of a mile or less in freezing fog. * WHERE...John Day Basin. * WHEN...Until 11 AM PST Friday. * IMPACTS...Low visibility and slick roads could make driving conditions hazardous.
Dense Fog Advisory issued December 5 at 4:03PM PST until December 6 at 11:00AM PST by NWS Portland OR
* WHAT...For the Air Stagnation Advisory, light winds and limited air movement will lead to a period of stagnant air conditions. This scenario could result in the build up of air pollutants over time. For the Dense Fog Advisory, visibility frequently below one quarter mile in dense fog and areas of freezing fog. * WHERE...South Willamette Valley. * WHEN...For the Air Stagnation Advisory, until 4 AM PST Saturday. For the Dense Fog Advisory, until 11 AM PST Friday. * IMPACTS...Poor air quality may cause issues for people with respiratory problems. Low visibility could make driving conditions hazardous. * ADDITIONAL DETAILS...Fog
Freezing Fog Advisory issued December 5 at 5:03PM MST until December 6 at 11:00AM MST by NWS Missoula MT
* WHAT...Visibility to one quarter mile in freezing fog. * WHERE...Missoula/Bitterroot Valleys. * WHEN...Until 11 AM MST Friday. * IMPACTS...Low visibility could make driving conditions hazardous. Watch out for black ice, particularly on bridges.
Dense Fog Advisory issued December 6 at 1:25AM MST until December 7 at 11:00AM MST by NWS Boise ID
* WHAT...For the Dense Fog Advisory, visibility one quarter mile or less in dense fog. For the Air Stagnation Advisory in valleys, an extended period of stagnant air, with light winds and little vertical mixing. This is due to an inversion near the surface that will continue to trap pollutants. * WHERE...Treasure Valley Zones and the Weiser Basin. * WHEN...For the Dense Fog Advisory, until 11 AM MST Saturday. For the Air Stagnation Advisory, until 5 PM MST Saturday. * IMPACTS...Low visibility could make driving conditions hazardous. Poor air quality may cause issues for people with respiratory problems. * ADDITIONAL