Expires:202308221500;Remove:202308221500;328119 WWUS73 KUNR 221237 NPWUNR URGENT - WEATHER MESSAGE National Weather Service Rapid City SD 637 AM MDT Tue Aug 22 2023 SDZ001-002-012>014-031-073-WYZ071-221500- /O.CON.KUNR.FG.Y.0011.000000T0000Z-230822T1500Z/ Harding-Perkins-Butte-Northern Meade Co Plains-Ziebach- Pennington Co Plains-Southern Meade Co Plains-Northeastern Crook- Including the cities of Buffalo, Lemmon, Bison, Belle Fourche, Faith, Dupree, Box Elder, Caputa, Wall, Ellsworth AFB, Union Center, and Colony 637 AM MDT Tue Aug 22 2023 ...DENSE FOG ADVISORY REMAINS IN EFFECT UNTIL 9 AM MDT THIS MORNING... * WHAT...Visibility one quarter mile or less in dense fog. * WHERE...Portions of northwestern and southwestern South Dakota and northeast Wyoming. This includes the Tribal Lands of the Cheyenne River Reservation. * WHEN...Until 9 AM MDT this morning. * IMPACTS...Hazardous driving conditions due to low visibility. PRECAUTIONARY/PREPAREDNESS ACTIONS... If driving, slow down, use your low-beam headlights, and leave plenty of distance ahead of you. && $$