GeoAdriatic Implementation of new technologies has not only simplified the visualisation of spatial data but has also made it necessary.  Hydrographic Institute of the Republic of Croatia (HHI) has created a geoportal GeoAdriatic to share with the public its specific spatial data used for producing up-to-date navigational charts and publications.  The HHI Nautical Department is National Coordinator for Navigational Warnings, as part of Maritime Safety Information (MSI), and publishes navigational warnings on the HHI website. Besides providing textual presentation of radio navigational warnings, Geoportal also enables a spatial view.  The data are collected, analysed, and published on working days from 7:30 a.m. to 3:30 p.m. S-124 Standard In the light of S-124 Standard, HHI has assumed a new structure of radio navigational warning information, and adapted it for update and display through GIS applications. Opensource QGIS The data are entered and updated through Opensource QGIS applic