* A local weatherman's pet cat: Some weathermen have used their pet cats for on-air segments. These might have earned nicknames like "Bob the Weather Cat."
* A fictional character: There could be a fictional weather cat named Bob in a children's book, cartoon, or other media.
* A misunderstanding: It's possible there's a mistake in the name or the context.
To help me identify who you're thinking of, could you please provide more details?
* Where did you hear about Bob the Weather Cat?
* What do you remember about him?
* Was he from a specific region or country?
With more information, I might be able to figure out who you're looking for.