Weather change

We are in for a change in the weather today. I always listen to NOAA weather radio while getting dressed in the morning. Cold fronts always come from the northwest in Texas, so if the temperature in Amarillo is 30 degrees with snow flurries, a cold front is on the way. The next town whose temperature is given is Abilene, many miles to the southeast of Amarillo. If Abilene is similarly cold, one gets an idea about how fast the front is traveling. If it is still warm in Abilene, the front won't be here until the afternoon.