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Old April 10, 2010, 12:08 PM   #6
Tuzo
Senior Member
 
Join Date: June 14, 2007
Location: Louisiana
Posts: 724
Smoke and wind speed estimation

Smoke rising veritcally - 0 mph. Smoke is nearly horizontal, 85 degrees, at about 35 mph. At 60 degrees from vertical 22 mph. At 40 degrees from vertical 15 mph.

Quick estimate would be 12 o'clock 0 mph; 1 o'clock 15 mph; 2 o'clock 30 mph; 3 o'clock 40 mph.
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