From the National Weather Service:

Freeze Warning issued October 27 at 3:52AM CDT expiring October 27 at 12:00PM CDT by NWS Amarillo …FREEZE WARNING REMAINS IN EFFECT UNTIL 10 AM CDT THIS MORNING… …FREEZE WATCH IN EFFECT FROM THIS EVENING THROUGH FRIDAY MORNING… THE NATIONAL WEATHER SERVICE IN AMARILLO HAS ISSUED A FREEZE WATCH…WHICH IS IN EFFECT FROM THIS EVENING THROUGH FRIDAY MORNING FOR THE WESTERN HALF OF THE TEXAS AND OKLAHOMA PANHANDLES. A FREEZE WARNING REMAINS IN EFFECT UNTIL 10 AM CDT THIS MORNING. * EVENT: TEMPERATURES WILL CONTINUE TO FALL INTO THE 26 TO 32 DEGREE RANGE THIS MORNING MAINLY ALONG AND WEST OF A TYRONE TO AMARILLO TO PALO DURO CANYON LINE. * TIMING: TEMPERATURES WILL FALL TO 32 DEGREES OR LOWER ACROSS THE ENTIRE ADVISORY AREA BY 7 AM CDT. THE LOWEST TEMPERATURES WILL BE BETWEEN 6 AND 9 AM CDT THIS MORNING. * IMPACTS: THE FORECAST LOW TEMPERATURES THIS MORNING WILL LIKELY RESULT IN A FREEZE. LIGHT SNOW ACCUMULATIONS CAN BE EXPECTED AS WELL. THOSE WITH OUTDOOR SENSITIVE CROPS…PLANTS AND VEGETATION SHOULD TAKE ACTION TO PROTECT THEM FROM SUB FREEZING TEMPERATURES.