HOUSTON Galveston Mayor Jim Yarbrough announced a mask order for residents Monday that will go into effect just after midnight. Effective midnight, residents in the city of Galveston will be required to wear face coverings in all Galveston businesses that serve the public, officials announced Monday evening. The face coverings must cover the customers nose and mouth, officials wrote. City officials say the order came in response to the growing number of coronavirus cases in the city and county. The order will remain in effect until 11:59 p.m. on June 30 and may be extended if Galveston City Council votes to extend the order at a meeting Thursday.