Complex cloud layers

October 27th was very warm, with a high of 79 degrees and 77 percent humidity  This was in advance of a cold front that has dropped the temperature overnight to the current 45 degrees.


Due to the cold front, a complex collection of clouds covered the evening sky. Cloud types in this sky are cirrostratus, cumulonimbus and cirrus which are all typical of a cold front.


This drawing was begun at about 6 pm with blue-gray, rose and crisp yellow-white clouds in  the eastern sky. All that color and I decided to draw in graphite! I was intrigued by all the shapes and tones of the clouds so I found a nice sharp 4B pencil and got started.


Pencils are graded by their hardness. The harder the graphite the lighter the line drawn with it. Here's a link to the HB scale to see where 4B (soft) fits into the scheme. The old number 2 pencil from school days is usually an HB pencil which is in the middle of the scale.