AEROGRAPH ER'S MATE 3 & 2 



Table 10-2. — Estimating intensity of precipitation (other than drizzle) on rate-of-fall basis 



Light Scattered drops or flakes that do not completely wet 



or cover an exposed surface, regardless of duration 

 to 0.10 inch per hour; maximum 0.01 inch in 6 min- 

 utes. 



Moderate 0.11 inch to 0.30 inch per hour; more than 0.01 inch 



to 0.03 inch in 6 minutes. 



Heavy More than 0.30 inch per hour; more than 0.03 inch in 



6 minutes. 



Table 10-3. — Estimating intensity of drizzle on rate-of-fall basis 



Light Scattered drops that do not completely wet an exposed 



surface, regardless of duration to 0.01 inch per hour 



Moderate More than 0.01 inch to 0.02 inch per hour. 



Heavy More than 0.02 inch per hour. 



Table 10-4. — Intensity of drizzle or snow with visibility as criteria 



Light Visibility 5/8 statute mile or more. 



Moderate Visibility less than 5/8 statute mile but not less 



than 5/16 statute mile. 



Heavy Visibility less than 5/16 statute mile. 



Table 10-5.— Estimating intensity of ice pellets 



Light Few pellets falling with little, if any, accumula 



tion. 



Moderate Slow accumulation. 



Heavy Rapid accumulation. 



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