Special Weather Statement issued January 22 at 8:27PM MST by NWS

…PATCHY DENSE FOG EXPECTED INTO MONDAY MORNING… Fog is developing across the area tonight. Locally dense fog could reduce visibility to below one half mile at times, with dense fog most likely in or near river valleys. Visibility may change quickly over a short distance. If traveling, be aware of quickly changing conditions and possible slick spots on roads.