000 SXUS75 KCYS 150741 RERAIA RECORD EVENT REPORT NATIONAL WEATHER SERVICE CHEYENNE WY 1232 AM MST MON FEB 15 2021 ...RECORD LOW TEMPERATURE SET AT ALLIANCE NEBRASKA AIRPORT... A RECORD LOW TEMPERATURE OF -28 WAS SET AT ALLIANCE NEBRASKA AIRPORT YESTERDAY. THIS BREAKS THE OLD RECORD OF -22 SET IN 1936. $$ MB