TABLE 25 (Cont'd) 



Code figure 



44 Fog or ice fog, sky visible \ no appreciable change during the preced- 



45 Fog or ice fog, sky invi-sible | ing hour 



46 Fog or ice fog, sky visible 1 has begun or has become thicker during 



47 Fog or ice fog, sky invisible j the preceding hour 



48 Fog, depositing rime, sky visible 



49 Fog, depositing rime, sky invisible 



WW = 50 - 99 Precipitation at the station at the time of observation 



ww= 50-59 Drizzle 



WW 



50 Drizzle, not freezing, intermittent ( 



51 Drizzle, not freezing, continuous f 



52 Drizzle, not freezing, intermittent \ 



53 Drizzle, not freezing, continuous f 



54 Drizzle, not freezing, intermittent | 



55 Drizzle, not freezing, continuous | 



56 Drizzle, freezing, slight 



57 Drizzle, freezing, moderate or heavy (dense) 



58 Drizzle and rain, slight 



59 Drizzle and rain, moderate or heavy 



slight at time of observation 

 moderate at time of observation 

 heavy (dense) at time of observation 



WW =60 -69 Rain 



WW 



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 



slight at time of observation 

 moderate at time of observation 

 heavy at time of observation 



WW =70 -79 Solid precipitation not in showers 



WW 



70 

 71 

 72 

 73 



Intermittent fall of snow flakes 

 Continuous fail of snow flakes 

 Intermittent fall of snow flakes 

 Continuous fall of snow flakes 



slight at time of observation 



moderate at time of observation 



66 



