Cloud Code 



Type Cloud type according to WMO Code 0500. 



Code Type Code Type 



Cirrus 5 Nimbostratus 



1 Cirrocumulus 6 Stratocumulus 



2 Cirrostratus 7 Stratus 



3 Altocumulus 8 Cumulus 



4 Altostratus 9 Cumulonimbus 



X Clouds not visible due to darkness, fog, or other analagous phenomena 



Amount Cloud amount in eighths. Entry of the numeral 9 in- 

 dicates cloud amount could not be estimated. 



Wind 



Dir Rounded to nearest multiple of 10 degrees. 



Speed Wind speed in knots. 



Barometer Barometric pressure given in tens, units, and tenths 



of millibars. 



Vis. Code Visibility according to WMO Code 4300. 



Code Visibility Code Visibility 



Less than 50m 5 2-4km 



1 50-200m 6 4-10km 



2 200-500m 7 10-20km 



3 500-1000m 8 20-50km 



4 l-2km 9 50km or more 



Dyn. Ht Dynamic height in dynamic meters with respect to 



1000 decibar reference surface. 



Messenger time Entered in hours and tenths of an hour. Indicates 



the starting time for lowering the STD sensor. 



Depth Depth to nearest meter. 



Temp Temperature to hundredths of a degree Celsius. 



Sal Salinity to hundredths of a part per thousand. 



Sig-t Sigma-t value. 



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