Don't know if this has been posted before, but I came across this on a
boat today - WAY cool.

http://www.sirius.com/marineweather

If you are a Sirius subscriber, it looks very interesting. And very
real time although there wasn't a lot of "weather" to watch.

The unit I saw this feature on was a Raymarine C120 system on a 33
Grady White Canyon center console.

And it has everything from real time buoy monitoring, surface temp
readouts for the area, wave reports, real time Nexrad - very
impressive. What was really neat was you could put all four readouts
(radar, sounder, GPS and WX) up on the display at the same time - that
was nifty. Mix and match was interesting - radar/WX, GPS/WX and there
is a way to overlay the displays but I didn't get around to playing
with that.

A tad expensive for the small boater, but to be honest, being the
semi-geek I am, I could see spending the $4k to put an entire C70
system on my Ranger if only because I boat in the NE where things can
change in a hurry. It would be nice to call up real time WX radar
when things get snarky and overlay the WX radar on GPS.

The Sirius isn't that expensive either all things considered - $800
for the receiver/translator and $30/month for the data. Considering
the average boating season, six months, the $180 is well spent - to me
anyway.

By the way, I am very impressed with the Canyon 33 - this is one sweet
CC, very comparable to my Contender Fisharound. only with more room
for some reason even with similar configuration.