I expect people from Houston to Brownsville and back up to Laredo and El Paso would have serious problems
were they to hit an accumulation of snow.. Even more challenging, would be ice.
That is not belittling those drivers, because when I drove through the desert of Arizona and New Mexico...I paid
heed to what the locals said, knowing that trouble could crop up in the deserts.
One thing that often fakes out the most experienced drivers...is "black ice".. Often times you won't even know you are on it, until you sense that your vehicle is starting to skid.
Black ice most often occurs at higher temperatures..around the freezing point. It most often shows up on bridges or open, unsheltered areas, where the wind chills it.
A hint to avoid black ice... watch the taillights of the vehicle you are following they will reflect off of black ice.