TABLE 25 (Cont'd) 



heavy at time of observation 



Code figure 



74 intermittent fall of snow flakes \ 



75 Continuous fall of snow flakes | 



76 Ice prisms (with or without fog) 



77 Snow grains (with or without fog) 



78 Isolated starlike snow crystals (with or without fog) 



79 Ice pellets, type (a) 



WW = 80 -99 Showery precipitation, or precipitation with current or recent thunder- 

 storm 



WW 



80 

 81 

 82 

 83 

 84 

 85 

 86 

 87 



88 

 89 



90 



91 

 92 



93 



94 



95 



96 



97 



98 



99 



Rain shower(s), slight 



Rain shower(s), moderate or heavy 



Rain shower(s), violent 



Shower(s) of rain and snow mixed, slight 



Shower(s) of rain and snow mixed, moderate or heavy 



Snow shower(s), slight 



Snow shower(s), moderate or heavy 



j Shower(s) of snow pellets or ice j - slight 



pellets, type (b), with or without 

 rain or rain and snow mixed 



Shower(s) of hail*, with or 

 without rain or rain and snow 

 mixed, not associated with 

 thunder 



Slight rain at time of observation 



Moderate or heavy rain at time of 

 observation 



Slight snow, or rain and snow mixed 

 or hail** at time of observation 



Moderate or heavy snow, or rain and 

 snow mixed or hail** at time of 

 observation 



Thunderstorm, slight or moderate, 

 without hail**, but with rain and/or 

 snow at time of observation 



Thunderstorm, slight or moderate, 

 with hail** at time of observation 

 Thunderstorm, heavy, without hail**, 

 but with rain and/or snow at time of 

 observation 



Thunderstorm combined with dust- 

 storm or sandstorm at time of obser- 

 vation 



Thunderstorm, heavy, with hail** 

 at time of observation 



- moderate or heavy 



- slight 



- moderate or heavy 



thunderstorm during the pre- 

 ceding hour but not at time of 

 observation 



thunderstorm at time of 

 observation 



* French : grele. 

 ** Hail, ice pellets, type (b), snow pellets. 



French : grele, gresil ou neige roulee. 



67 



