This thermal image, taken from the helicopter on today's overflight...

This thermal image, taken from the helicopter on today's overflight, shows the area of active pāhoehoe near the flow front of the Kahauale‘a 2 flow, northeast of Pu‘u ‘Ō‘ō. Blue and purple areas show warm but inactive areas of the flow, while the white and yellow areas are actively flowing lava. The flow surface consists of numerous scattered pāhoehoe lobes, and the advancement of the flow as a whole results from the combined, incremental movement of these individual lobes. The black (cold) area at the top of the image is forest.