Perhaps by the end of the work week it could be posing a threat to Bermuda, but not the US.

Katrina could reach category-one hurricane strength before the center reaches the southeastern coast of Florida.

That doesn't mean it will blow tropical storm force winds for six hours or 12 hours. It could be one minute or three, but it means if you have awnings that can't withstand tropical force winds, you should take them down.

Once Irene hits the icy waters of the North Atlantic in about 48 hours, any remaining tropical characteristics should quickly disappear.

It is going to be a very dangerous situation. We could easily see 15 inches of rain in some mountain areas, and that could cause flash floods and mudslides.

But it's not going to threaten any land anywhere over the weekend.

The threat of any intensification is over.

On this track, Maria should remain well to the east of Bermuda and only pose a threat to shipping interests.