A shark sighting at Hanalei Bay in Hawaiʻi has prompted safety officials on Kauaʻi to urge people to stay out of the water for now. The precaution follows the sighting of a 6- to 7-foot shark Sunday afternoon. What happened? Officials with the Kauai Ocean Safety Bureau said a shark was seen near the Pavilion Tower at Hanalei Bay at about 2:15 p.m. Sunday, Hawaii News Now reported. Officials quickly issued a warning to the public. Signs were post…