Overlay GRIB Data on Satellite Images in OpenCPN

Overlay GRIB Data on Satellite Images in OpenCPN by Chris “Tweed” Harris s/v Morgane “I receive NOAA APT weather satellite images which are quite useful when used alone but with GRIB wind and rain data overlaid they can be very useful in checking the validity of the GRIB model’s forecast.” Chris Harris’s article demonstrates all…

How to Sail off the Chart with Confidence Using Satellite Imagery

How to Sail off the Chart with Confidence Using Satellite Imagery by Rory Garland s/v Streetcar Google Earth Navigation on OpenCPN Charts Use a range of techniques to navigate safely in far-flung places that have poor chart coverage. Rory’s article, published in Yachting World magazine, highlights the usefulness of satellite imagery overlays and how to…

OpenCPN Unleashed on SSCA

OpenCPN Unleashed on SSCA by Dave Register OpenCPN Unleashed Seminar SSCA Gam Melbourne, FL  11 Nov 2016 First, I would like to thank the Seven Seas Cruising Association for the opportunity to speak at this year’s gam. The OpenCPN Unleashed seminar was well attended. The presentation began with an introduction to OpenCPN, then covered highlights…

Commercial Traffic Zones and What the Lights Mean

Commercial Traffic Zones and What the Lights Mean by Roz Butziger Green and Purple Shapes on my OpenCPN Charts Those are Traffic Separation Zones.  They can be rather confusing if you’re not familiar with them. Roz Butziger, of the Warwick Beacon, describes the traffic lanes found on some charts and how to navigate them. She…