Troopers with the Washington State Patrol on Thursday said they have arrested a second person for intentionally starting a brush fire in Pierce County. Troopers said someone saw a man setting fire to grass with a match near State Route 512 and State Route 7 and called police. Troopers arrived at the scene, chased the man, and took him into custody. Thursday’s arrest comes one day after a 36-year-old Puyallup man was arrested for allegedly starting a large brushfire which temporarily shut down state Route 167 and several ramps near Meridian Avenue. Fire danger remains very high across Washington due to low humidity and high temperatures. More than 480,000 acres in Washington have burned since Monday.