Stranded Humpback Whale Timmy Awaits Rescue
Whale is 12-15 meters long and failed previous rescues due to low salt content.
500-meter protection zone established to prevent bystander stress.
67-year-old woman attempted to approach whale from boat.
New plan uses air cushions to lift whale onto tarp.
Tugboat will transport whale out of Baltic Sea by Friday.
2 days ago