Please see below from Estes regarding weather related service interruptions 

Terminal Limited
23 Charleston, WV – CWV/23
30 Lexington, KY – LEX/30
56 Little Rock, AR – LRK/56
86 Louisville, KY – LOU/86
105 Fort Smith, AR – FTS/105
140 Fargo, ND – FGO/140
173 Bismarck, ND – BS2/173
215 Cheyenne, WY – CWY/215
216 Casper, WY – CPW/216
251 Butte, MT – BTT/251
254 Missoula, MT – MLA/254
263 Missoula (agent), MT – MIS/263
265 Butte (agent), MT – BUT/265