The film was shot primarily at the Warner Bros. Studios, Burbank, in order to keep costs down. The beach and hotel exterior were constructed on the Warner Bros. backlot; the interior scenes were filmed on a sound stage; and the boat scenes were filmed in Sound Stage 21, a huge indoor water tank. Exterior shots of the hurricane were taken from stock footage used in "Night Unto Night", a Ronald Reagan melodrama which Warner Bros. also produced in 1948. Filming took 78 days.