Super Bowl visitors to the Valley were expecting a sunny week, and they were caught off-guard when rain began falling Thursday night.The weather put a damper on the activities at Super Bowl Central in downtown Phoenix. Twelve city blocks and parking lots have been transformed into a variety of NFL-related activities.When the clouds rolled in, the crowd found indoor activities in tents. They include several virtual-reality games, interactive football player holograms, and other football-related challenges.Some tourists laughed when the Grand Canyon-themed climbing wall was closed because of the rain, and workers put a sign up blaming it on "inclement weather.""We're used to this. This isn't really rain. This is a light mist compared to what we're used to," a Seahawks fan from Seattle said."This is what we brought with us," another fan added. "It's a sign from God (that the Seahawks will win)."Most of the Super Bowl Central events are free and open to the public. The event will be open, rain or shine, through the weekend.