An updated cold weather advisory was issued by the National Weather Service on Thursday at 12:51 a.m. valid for Friday between midnight and 10 a.m. for Orange County.The weather service adds, "Use caution while traveling outside. Wear appropriate clothing, a hat, and gloves. Keep pets indoors as muc h as possible. Make frequent checks on older family, friends, and neighbors. Ensure portable heaters are used correctly. Do not use generators or grills inside." ...read more read less