GOES-15 0.63 µm visible channel images (click image to play animation)
As mentioned on the CIMSS Satellite Blog, record heat in Alaska led to an increase in wildfire activity in Alaska — and GOES-15 (GOES-West) 0.63 µm visible channel images (above; click image to play animation) showed the development of pyrocumulonimbus clouds associated with large fires burning in southwestern Alaska (to the northeast and northwest of Sparrevohn, PASV, left panels) and in southeastern Alaska (to the southeast of Northway PAOR, right panels) on 17 June 2013.