Meteorological and Hydrographic data

Introduction/Additional information: 
This message should not be transmitted when positional information or time of measurement are not available. If there is no data available for that particular data field, it should be displayed as "not available"
Permitted as from: 
01/06/2010
Registrant: 
IMO Circ. 289
Message number: 
8
DAC: 
1
FI: 
31
State: 
in force
Number of slots (max): 
2