Hurricane Dorian continues to strengthen as it impacts the U.S Virgin Islands and Puerto Rico

Hurricane Dorian continues to strengthen as it impacts the U.S Virgin Islands and Puerto Rico.

The big question now - how strong will it become - and where will it hit next?

Hurricane-force wind gusts, torrential rain, flooding, and widespread power outages are just some of the dangers Puerto Rico is experiencing.

The storm could dump up to 10 inches of rain and is likely to impact many of the areas hardest hit by Hurricane Maria two years ago.

Officials and residents are hoping they're more prepared this time as many areas are still vulnerable.

Emergency crews are on standby and officials say that the thousands of residents still using blue tarp roofs are the priority. Many have been evacuated to shelters.

Another major concern, what Dorian does next.

Fox 4 meteorologists say the storm is likely to strengthen as it moves over the warm Atlantic waters, and slam into the southern US coast over Labor Day weekend possibly as a Category 3 Hurricane.

Ahead of Hurricane Dorian 29 pups from the All Sato Rescue in Puerto Rico were sent to Southwest Florida. They will now be living at the Humane Society in Naples.