Seattle Area Sea Kayaking Meetup Group Message Board › Navigation Q&A Forum › Internet links to Currents, Charts, and Navigation aids
Current and Tide Charts
50/90 Rule: "… the speed of the current at the end of each hour." Counting from slack, the current will flow at 50% of its maximum speed at the end of the first hour, 90% at the end of the second hour and full 100% or maximum speed at the end of the third hour and then back to zero with the same steps. The full rule should be stated as 0/50/90/100/90/50/0.
NOAA Nautical Charts
Other good websites and apps:
Deep Zoom has a Windows app for currents as well as an online version.
You can find an Android version called "Currents". You can read about it here: http://yoyana.com/sup...
Also the Marine Weather app and one of the many freight traffic app's are also useful.
Edited by Lara on Jan 17, 2014 2:36 PM