On a late June afternoon, 18 mile-per-hour winds whistle across an open meadow on a small piece of private land in the Jemez Mountains. In the saddle between two pine-covered ridges at the edge of the property, an aspen tree teeters over onto the bare wire of an electrical pole, causing a spark. Over the next 14 hours, the resulting fire burns 43,000 acres, or one acre every 1.17 seconds. It devours areas the size of a football field in (literally) two seconds. In a little over a month, it has spread through 156,000 acres and incinerated 63 homes.