We kinda touched on this in that powerfeeding thread; I know snakes can - and do - eat larger meals in the wild than they normally would in captivity, but I agree that a snake of that length (unless it's some sort of blood python!) should not have a rat that size...you're inviting trouble because even if you up the temps. to allow the snake to increase its metabolism you're pushing the snake's whole system to adjust to something it probably couldn't do in nature.
As far as hurricanes and the like Frank, where I grew up and places I've live in Florida (all over when working for DEP) my snakes certainly responded to something "in the air" when serious storms where getting near. Before big rain/thunderstorms/tropical storms they were all out and about, very alert and moving around, pushing against their cages - all of the snakes - before some of them just tucked themselves away nice and tight in their hide boxes.
Interesting observation and I'm sure snakes can sense these kind of events long before we can react to them.
-John