The weather overlay visualises the motion of wind direction, bands of rain, and atmospheric pressure to give an overview of the five day forecast during the planning phase. The mariner can preview dangers zone and take appropriate actions.
Regions can be selected and viewed from the five oceans list, while for more accurate and specific METAREAs, a link in Seal Passage Planner sends users to the Joint Technical Commission for Oceanography and Marine Meteorology (JCOMM) website.
For the piracy overlay, warning data is collated from the International Chamber of Commerce (ICC) and updated every 24 hours. Seall users can see areas where armed robberies have taken place in port or out at sea, and access notices and reports so as to take precautionary measures.
The Seall Passage Planner then automates validation of planned routes against that piracy information.