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What Every Seaglasser MUST Know About Tides
May 05, 2014
Lin and I hope this letter finds you in good health. Or at least in reasonable health.If you're getting on in years, I'd like to share a remark a friend made yesterday, "You're only old once, so enjoy it while you can."
It's nice listening to the sound of the ocean. Many songwriters have included lines bringing to mind the ocean, such as this familiar one.
"Ebb Tide," written early in the past century, was recorded by many different artists including Frank Sinatra and the Righteous Brothers.
For seaglassers, the words may have more significance than to the average person.
We discuss that in this newsletter.
Here's what you'll find in this May 2014 edition of the Odyssey Sea Glass Newsletter.
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First, we’ll discuss these two reasons in general terms and then get a little more specific.
Although the lyrics to the song quoted at the beginning of this newsletter state that the tide “plants a kiss on the shore,” in reality it may be a harsh and unwanted kiss. Why?
It’s important to know the times of high and low tide at the particular beach you’ll be going to because some beaches are dangerous at high tide. No wants that kind of a kiss.
Tides will vary quite a bit from one beach to another, so be sure to get a tide chart report on the beach closest to your destination.
~ Have you ever been on a narrow beach backed by cliffs with the tide coming in and a long hike (run) ahead of you? ~
If you have been in that position you are not alone. Many of us have faced a similar situation and some have had to be rescued by helicopter when the incoming tide closed off the only way out.
So, for safety reasons, you will need to know first if the beach poses any dangers at high tide, and second, what time is high tide.
For most ocean beaches, the best time to find sea glass is at low tide and the worst time is at high tide.
So to plan a successful trip, you’ll want to schedule a day that includes at least a few hours when the tide is lowest.
What would be the ideal time to go based on tides?
I popped that question to Lin and she immediately said, “Noon.” Then she thought a little and qualified it, saying "it would be noon in the winter but a little later in summer to take advantage of longer hours of daylight."
For safety reasons and also for the success and enjoyment of your trip, it is essential to know in advance the times of the local tides.
Large tidal changes – approx. 6+ feet (2.0+m)
Medium tidal changes - 2-6 feet (1.0 to 2.0m)
Minimal tidal changes - 0-2 feet (0 to 0.6m)
The biggest changes between high and low tides occur inside long bays opening on the ocean.
The tides cover and uncover huge stretches of shoreline twice a day. This allows a large sea glass search area that is constantly renewing the surface.
At high tide, though, it may be difficult or impossible to find beach glass. You will need to check the tides carefully to avoid dangerous conditions.
The optimal time to start your search is when the tide is going out (falling or dropping). This will give you plenty of time to search before the tide comes back in and gets you.
The area with the largest tide changes in the world is at the Bay of Fundy in Canada. The Bay of Fundy is between Nova Scotia and New Brunswick. At certain times of the year, the tide change is 53 feet (17 meters) .
In the United States, the largest tidal changes are near Anchorage,Alaska and run about 40 feet (12.2 meters).
In both these areas of Canada and Alaska, some good sea glass can be found. But you’ll definitely want to consult the locals about the dangers that might be involved..
Most ocean beaches will have tides in the medium range for most of the year. Depending on the phase of the moon/sun, these tides can vary quite a bit from week to week.
Medium tides give a nice sea glass search area that is being constantly renewed. At high tide, there may be little or no exposed beach area to search. The best time to hunt for sea glass is when the tide is dropping.
Many seaglassers like to start hunting about 3 hours before low tide. That gives a good 6 hours of time to search in the optimal section of the beach.
When traveling to an ocean beach, always check the local tide tables (or ask a fisherman) in order to hit the beach on the best days and at the best times. A good source is http://tidesandcurrents.noaa.gov/tide_predictions.html.
Islands in the middle of the ocean have smaller tidal ranges generally. Bays and inlets may have larger variations.
Lakes, even big ones, will have no noticeable tides. In areas with very little or no tidal change, the change in surface height of the water along the beaches is more affected by storms (high winds) than by tides, so the best time to search is after storms.
It is very important on beaches with tides to check the tide tables for that particular beach well ahead of your trip. Checking the tide tables well before planning your seaglassing excursion will ensure your safety and also give the best opportunity of finding good sea glass.
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