Hard Freeze Warning issued May 20 at 3:32AM CDT until May 21 at 10:00AM CDT by NWS

...HARD FREEZE WARNING IN EFFECT FROM 9 PM THIS EVENING TO 9 AM MDT SATURDAY... * WHAT...Sub-freezing temperatures as low as 22 expected. * WHERE...Portions of east-central, south-central and southeast Wyoming and panhandle Nebraska. This includes Cheyenne, Laramie, Rawlins, Douglas, Kimball, and Saratoga.