no. 3609 D ATA PROCESSING SEABIRDS — KING, WATSON, GOULD 27 



Slight at time of 

 observation. 



Moderate at time of 

 observation. 



Heavy at time of 

 observation. 



60-69 Rain at time of observation. 



60 Rain, not freezing, 



intermittent. 



61 Rain, not freezing, 



continuous. 



62 Rain, not freezing, 



intermittent. 



63 Rain, not freezing, 



continuous. 



64 Rain, not freezing, 



intermittent. 



65 Rain, not freezing, 



continuous. 



66 Rain, freezing, slight. 



67 Rain, freezing, moderate or 



heavy. 



68 Rain or drizzle and snow, 



slight. 



69 Rain or drizzle and snow, 



moderate or heavy. 

 70-79 Solid precipitation not in showers at time of observation. 



70 Intermittent fall of snow 



flakes. 



71 Continuous fall of snow 



flakes. 



72 Intermittent fall of snow 



flakes. 



73 Continuous fall of snow 



flakes. 



74 Intermittent fall of snow 



flakes. 



75 Continuous fall of snow 



flakes. 



76 Ice needles (with or without 



fog. 



77 Granular snow (with or 



without fog). 



78 Isolated starlike snow 



crystals (with or without 

 fog). 



79 Ice pellets. 



Slight at time of 

 observation. 



Moderate at time of 

 observation. 



Heavy at time of 

 observation. 



