Add information here. Warm and dry conditions occurred on December 2-4, with daytime temperatures well-above normal. Highs were mostly in the 70s on the 2nd, and in the upper 70s to lower 80s on the 3rd. On the 4th, temperatures reached the upper 70s to mid-80s, ahead of an approaching strong, Canadian cold front.
A major change in the pattern brought an abrupt end to the above normal temperatures across the region, and resulted in record cold conditions with wintry precipitation. Following passage of the strong cold front, much colder air overspread West Central Texas on the 5th, with falling temperatures and brisk north winds on the 5th. On the afternoon of the 5th, temperatures were around 50 degrees colder than during the previous afternoon. The approach of a strong upper level disturbance brought mixed winter precipitation to West Central Texas, from the evening of the 5th into the early morning of the 6th. Freezing rain and sleet transitioned to all sleet across the Big Country, Concho Valley and Heartland, while the precipitation was mostly freezing in southern sections of West Central Texas. Some of the precipitation was accompanied by lightning and thunder to the southeast of a Sonora to Brownwood line. With temperatures well-below freezing, sleet accumulated to one-half inch, and ice from the freezing rain accumulated to between one tenth and one quarter of an inch. The most hazardous travel conditions occurred across the Big Country, where numerous traffic accidents were reported.
Mention freezing drizzle on the 7th into the early morning of the 8th, along with the prolonged cold as strong high pressure moved south and reinforced the cold air.