Hello CindyDawg.
I haven't been on the horse thread for a while. Busy.
My ex's relatives are in Highlands (suburb of Houston)but most are youngish and only one elderly in a scooter chair, they should be all right.
I would get them out. I used to live between highlands and Crosby. It's a tornado alley and floods. Our mobile home was totaled there during Alica.