Here are the shows that will be airing weekdays at 6PM. From 5-6PM will still be Storm Stories.
Mondays
5:00 PM Storm Stories
5:30 PM Storm Stories
6:00 PM SeaTek
6:30 PM SeaTek
Tuesdays
5:00 PM Storm Stories
5:30 PM Storm Stories
6:00 PM Weather Proof
Wednesdays
5:00 PM Storm Stories
5:30 PM Storm Stories
6:00 PM When Weather Changed History
Thursdays
5:00 PM Storm Stories
5:30 PM Storm Stories
6:00 PM SeaTek
6:30 PM SeaTek
Fridays
5:00 PM Storm Stories
5:30 PM Storm Stories
6:00 PM When Weather Changed History
And both Zap2it and TV Guide lists Weather Center airing on weekends with the Sunday showings being from 7PM-4AM.