Daily Archives: June 28, 2013

West Fork fire complex: pyrocumulonimbus penetration of existing cumulonimbus clouds

McIDAS images of 1-km resolution GOES-15 (GOES-West) and GOES-13 (GOES-East) 0.63 ┬Ám visible channel data (above; click image to play animation) showed a pyrocumulonimbus (pyroCb) cloud from the West Fork fire complex rapidly penetrating the tops of surrounding orographically-induced cumulonimbus (Cb) clouds, beginning around 20:10 UTC or 2:10 PM local time on 28 June 2013. […]