A new wildfire north of Los Angeles that’s grown to nearly 5,000 acres is forcing thousands to evacuate the area. It’s just one of blazes in the West with others burning in the state and in Colorado, and the relentless heatwave is elevating the danger. Meanwhile, temperatures are skyrocketing in Arizona, with Phoenix reaching 188 degrees Thursday. NBC’s Dana Griffin reports and TODAY’s Al Roker tracks the latest forecast…