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 analogous phenomena 



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

 cates 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-lOkm 



2 200-500m 7 10-20km 



3 500-lOOOm 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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