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Old Today, 08:04   #61
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Join Date: Aug 2009
Location: between the devil and the deep blue sea
Boat: a sailing boat
Posts: 19,454
Re: What weather information makes you take action when offshore?

Quote:
Originally Posted by s/v Moondancer View Post
We left Guam heading north for Japan and there was absolutely nothing on the satellite weather systems to worry about. Two days later and 250 nm north the satphone gribs showed a cat2-3 two days behind us and heading straight over our course!

My wife immediately said, "Saipan looks nice" and we changed course 90 deg to starboard!

Pays to have a good coms system, we would have been one of those boats that just disappeared and good to have a real mariner as a wife and partner.

Phil,


What exactly did you see there that you call a 'cat-2'.


Gribs do not show cat-2 anything features - you will see winds, maybe in the spiral form that may suggest something, but I cannot recal ant text data in gribs, nothing that pops up as a 'cat-x'.


???


Do you mean you interpreted the grib data as a 'cat-2' or do you have onboard a software that does that? If so, what is the package name?


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