Monday, July 20, 2009
Approaching Cold Front
A long north to south cold front was crossing Lake Huron during the early afternoon hours. Gusty southerly winds had already blown over #1082 "Range Light Mourning" which as a larger piece of canvas, behaved like a sail. Mid level instability was sufficient to produce rain showers that reached the ground as pale sheets as in the northern portion of this painting. The altocumulus castellanus to the left were less well developed and had not yet developed into full fledged towering cumulus clouds and showers. The upper levels of the atmosphere were still layered and mainly stable. The fishing boat (steel turtle) had just headed out and I sketched it as it went past.