TABLE 2k 

 Present Weather 

 Conversion from 1936 International Meteorological Organization Code to the 



WMO Code ij-501 



Code Underlined WMO 



Code 



ABBREVIATED DESCRIPTION OF SKY AND SPECIAL PHENOMEKA 4501 



(modified) 



00 Cloudless 



01 Partly cloudy. 1 



02 Cloudy. 1 



03 Overcast. 2 

 oh Low fog, on ground or over sea. ^ 



05 Haze (but visibility greater than 2,000 m., 2,200 yds). ^4- 



06 Dust devils seen. 4 



07 Distant lightning. 9 



08 Light fog or mist (visibility between 1,000 and 2,000 m. , k 

 1,100 and 2,200 yds). 



09 Fog at a distance, but not at the ship. h 



10 Precipitation within sight. 6 



11 Thunder, without precipitation at the ship. 9 



12 Dust storm within sight, but not at the ship. 3 



13 Ugly, threatening sky. 9 

 ik Squally weather. 9 



15 Heavy squalls. ) ^^ ^^gt 3 hours 9 



16 Waterspouts seen. ) 9 



PRECIPITATION IN LAST HOUR BUT NOT AT TIME OF OBSERVATION 



20 Precipitation (rain, drizzle, hail, snow, or sleet) \ 



21 Drizzle ^ J 5 



^^ ^^^^ > other than showers / . ^ , , ^ ^ v 



23 Snow ( [ m last hour 7 



24 Rain and snow or sleet / V but not at 7 



25 Rain shower (s). /time of 8 



26 Snow shower (s). i observation. 7 



27 Hail or rain and hail shower (s). 1 9 



28 Slight thunderstorm. I 9 



29 HeaAry thunderstorm. / 9 



60 



