Your'e scarin folks again. Basically we only have tides over 2 knots in narrow channels called "tidal rapids". There are a number of violent rapids like Ford's Terror, Nakwakto Rapids and Seymour Narrows that can flow 15 knots and they only have a few minutes of slack water during tide changes but most all rapids are below 7 knots max and most tides are of far less volume than spring tides. On the coast I only rarely need to alter plans to deal w tidal current.
I use tide tables and the Garmin plotter.
Haha, we get pretty rapid tides I'm guessin' 4-5 knots in a place called Snow's Cut, where they cut a channel between a big river and the ICW.** Otherwise around inlets 2-3 knots, but in*most places you worry mostly about depth.
*We have 5-6 foot tides in our area and so you always carry a paper tide table no matter what, however the Garmin tide prediction station tables are very accurate and I use them now almost exclusively.* The thing to remember is that on a falling tide if you are inland of the station it will be deeper and on a rising tide if you are inland it will be more shallow, and vice-versa.* But I only pay attention to that much detail when I'm in my 19' Grady White when I'm going up a creek and don't want to hit bottom.*
Around here, we have a chalkboard with the day's tides on it.* Life depends on them.*
I've seen some lake boaters here at the coast say "hey where did all the water go?" seriously they didn't know....* And some end up high and dry and there is no way off* for at least 6 hours.** I take photos to remind myself to be careful.* Note:* they guy in the picture isn't a lake boater, he just got taken off guard near an inlet.
-- Edited by Egregious on Thursday 23rd of September 2010 08:31:24 PM
-- Edited by Egregious on Thursday 23rd of September 2010 09:19:01 PM