If an outdoor cat goes missing, immediate action is crucial. Start by searching the nearby area, including places where the cat could hide. Alert neighbors, local animal shelters, and veterinarians, providing a detailed description and recent photos of your cat. Utilize social media and lost pet websites to broaden your search. Consider placing flyers in the community. Microchipping your cat beforehand greatly increases the chances of reunification, as shelters and vets can scan found pets. Lastly, keep checking local shelters regularly, as sometimes it may take time for a lost cat to be brought in.