Hurricane-Help my Sister's family

My sister and her family are victims of the devastating flooding in Houston, caused by Hurricane Harvey.  Karen, a single mom and her family have lived in this house less than a year.   Her home has substantial damage from the flooding in every room.  The water damaged her furniture, which will need to be replaced, and most likely her car which was submurged.   A few friends have asked me how they can help her.  A small donation to help her meet some of these costs would greatly be appreciated.