GSI first told you about the Marine Weather service from SIRIUS here
The units are now for sale and are now the talk of the boating world. More
Raymarine E-Series Displays Now Deliver Real-Time Weather Forecasts from SIRIUS Satellite Radio’s New Marine Weather Service.
On-demand access to detailed weather forecast information from SIRIUS Satellite Radio via Raymarine's E-Series high performance multifunction navigation displays.
Multifunction E-Series Displays provide on-demand access to detailed weather forecast information. Using SR100 satellite weather receiver module, boats have access to WSI NOWRad weather radar, storm tracks, sea surface temperature, wind, surface pressure, wave heights, and lightning. Captains can view and animate weather forecasts in full screen or within window alongside radar, chartplotter, and fishfinder functions.