Multiple fires have ignited this week with searing heat expected to last days and extend to Pacific north-westMultiple wildfires have ignited across California as the state continues to scorch in a multi-day heatwave that is expected to last through the weekend.The largest this week, named the Pickett fire, exploded in size on Thursday as it burned in a remote area of Napa county, and covered more than 2,100 acres (850 hectares) by Friday morning. Evacuation orders and warnings have been issued Thursday for hundreds of residents around Calistoga, a small city in the region known for its wine, as firefighters faced challenging conditions, working through dangerously high temperatures and rugged terrain. The fire’s perimeter is 0% contained. Continue reading…