According to Facebook posts from Jefferson and Karnack ISDa:
Karnack ISD will be closed the entire day- Wednesday, February 1st due to flooding on the majority of our routes, as well as the possibility of morning ice. Safety is our top priority. There will no bus transportation tomorrow. If you have high school student, you will need to provide transportation to Jefferson High. We are sorry for any inconveniences this may cause.
Jefferson posted that due to pending inclement weather the schools would be closed.