[Public-List] (no subject)

[Gordon Laco]

Hello gang -

Well there might be a military answer to the anomaly... my first guess  
would be that you saw the remains of the wake of a high speed ship.   
The travel for many miles and the size is about right.  This summer we  
were doing high speed maneauvres aboard a frigate in Lake Ontario in  
flat water... at 35 knots the wake was fairly much as you describe and  
the wave train would easily have continued for many miles even over  
the horizon for a yacht.

I know that is an rather inglorious solution - but perhaps a likely one.

Gord



On 21-Sep-09, at 10:14 PM, dan walker wrote:

> i think u need to check with gordon laco. my be3t is a canadian nuke  
> sub. came south to grab some cherries
>
> --- On Sun, 9/20/09, Dave Terrell <Dterrell at message.nmc.edu> wrote:
>
>> From: Dave Terrell <Dterrell at message.nmc.edu>
>> Subject: Re: [Public-List] (no subject)
>> To: public-list at lists.alberg30.org
>> Date: Sunday, September 20, 2009, 10:26 AM
>> Thanks to all who responded
>>
>> I sail in West Grand Traverse Bay in northwestern
>> Michigan.Grand Traverse Bay is about 30 miles long and is
>> divided into east and west bay by an 18 mile long peninsula.
>> Both bays are fairly narrow. I think I was between a
>> half mile and a  mile from shore.  Since the end
>> of August the mid west  has been the beneficary of a
>> stable large high. That day there was hardly any wind. I
>> have no reason to think the lake and the bay were having
>> much different conditions. I could check the weather history
>> and confirm that observation. These waves came from east to
>> west. To the extent that there was any wave train that day,
>> it would typically be from the northeast.
>>
>> A soliton looks like looks like a good possibility. What I
>> could see from the boat looked a lot like the soliton in the
>> strait of Gibralter image. The one difference is that that
>> the Gibralter soliton appeared to be curved while the wave
>> pattern I saw was straighter. It held together going all the
>> way across the bay.
>>
>> I am interested in any other approaches to understanding
>> this event that may be out there.
>>
>> David
>>
>>>>> Hugh McCormack <hugh_alberg at hotmail.com>
>> 09/19/09 8:58 AM >>>
>>
>> Hello Dave,
>>
>>
>>
>> I am intrigued by your experience and was looking at Google
>> Maps for some ideas. I have some questions that might help
>> solve the mystery. From the info you have already given I
>> think it is safe to say that the local 2-4 knots of wind
>> were not the cause.
>>
>>
>>
>> Where abouts on the bay were you when you experienced these
>> waves? Was Lake Michigan as calm as the bay? Also what was
>> the approximate distance between wave crests? From which
>> direction did the wave train come?
>>
>>
>> Cheers,
>>
>>
>>
>> Hugh
>>
>>
>>> Date: Fri, 18 Sep 2009 09:35:01 -0400
>>> From: Dterrell at message.nmc.edu
>>
>>> To: public-list at alberg30.org
>>
>>> Subject: [Public-List] (no subject)
>>>
>>> Earlier this summer while I was sailing Grand Traverse
>> Bay in winds of 2 to 4 kts apparent with calm flat water and
>> no power boats in the area, there suddenly appeared about
>> about ten wave crests - one was a breaking wave - I thiink
>> some of them might have been two feet high. The water around
>> these waves was flat like all the rest of the water on the
>> bay. When they passed - having bumped me around pretty well
>> - the sea remained flat and the winds remained at the same
>> speeds for most of the rest of the afternoon. The wave
>> crests went all the way across the bay. I saw an other sail
>> boat get knocked around as I was. The whole event lasted
>> about two minutes - maybe a little more or less.
>>
>>
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