Functionality level 1 
Functionality level 2 
Function 
Input information 
Output information 
2.3 Identify bad weather 
regions 
2.3.1 Record data 
• Expected wind conditions 
• Expected air temperatures 
• Expected water temperatures 
• Assessment criteria 
• Information necessary for identifying bad 
weather regions 
2.3.2 Select information 
• Result from 2.3.1 
• Planned route 
• Identification of bad weather regions along the 
planned route 
2.3.3 Provide information 
• Result from 2.3.2 
• Information on potential bad weather regions is 
available for further use during planning phase 
2.4 Determine expected 
visibility conditions 
2.4.1 Record data 
• Monthly charts 
• Sea and ocean handbooks 
• Collected data on visibility conditions and mist 
frequency 
2.4.2 Select information 
• Result from 2.4.1 
• Planned route 
• Season 
• Selection of information on visibility conditions 
relevant as regards planned route 
2.4.3 Provide information 
• Result from 2.4.2 
• Information on visibility conditions is available 
for further use during planning phase