I’ve never been there. I’m not sure how far north it will be ... Aleutians? At least it’s not a Great Lakes icebreaker. She’ll be a general seaman, cleaning and maintenance and fetching and whatever.
I’d have no way to know how far north she’ll go, but folks who get in trouble are usually pretty far north. And rescue is one of the duties for Coast Guard.
On the other hand, her ship will not be the only one out there.