Coriolis on lakes?

[DaveC426913]

In this month's Ontario Sailor magazine, there is an article on weather observing and forecasting on the Great Lakes by Serge Besner.

He says "Because of the Coriolis Effect that bends winds counterclockwise in the Northern hemisphere, the left side passage around an island is usually the fastest."

Could CE have a measureable effect at this scale?
Why left hand? That would mean you'd be heading upwind?
Would it not be conditional on the point of sail?
Would it not also be conditional on whether you're ahead of the system or behind the system at the time?

[dlandersson]

I'm not sure the author understood what he was writing.

In this month's Ontario Sailor magazine, there is an article on weather observing and forecasting on the Great Lakes by Serge Besner.

He says "Because of the Coriolis Effect that bends winds counterclockwise in the Northern hemisphere, the left side passage around an island is usually the fastest."

Could CE have a measureable effect at this scale?
Why left hand? That would mean you'd be heading upwind?
Would it not be conditional on the point of sail?
Would it not also be conditional on whether you're ahead of the system or behind the system at the time?

[silverfox441]

If you want to see coriolis effect, look at your sink when you flush water. The twisting motion of water as it drains is the direct result of coriolis effect. Here it is responsible for the formation of cyclone. It's always there and constant. Because it's constant, you don't have to worry about it, it has the same effect every day. Just check your marine forecast. It will go the other way in the southern hemisphere.

[NiceAft]

You now have given me inspiration to take a vacation south of the equator and flush a toilet.

Ray

[Highlander]

You now have given me inspiration to take a vacation south of the equator and flush a toilet.

Ray

Assuming u now have all ur plumbing issue,s resolved !

J

[DaveC426913]

If you want to see coriolis effect, look at your sink when you flush water. The twisting motion of water as it drains is the direct result of coriolis effect.

No. This is a myth with very long legs.

How much torque is applied by Earth's rotation to a body of water a mere foot across?

It takes an entire minute for the Earth to turn a bowl of water 660 microns. Way, way too small to set up a rotation.


Contrary to (almost as) popular belief, even tornadoes are too small to be affected by CE.

"Despite the large amount of misinformation, toilets—and even tornadoes—are too small to be affected by the Coriolis, whose force would only begin to directly influence a storm's swirling mass if it were approximately three times larger than the supercell storm systems that typically generate tornadoes.
Tornadoes usually rotate in the same direction as the thunderstorm they're associated with."

https://www.scientificamerican.com/arti ... direction/

i.e. the storm cell itself is much larger than the tornado; the tornado gets its rotation from its storm cell.

[DaveC426913]

I'm not sure the author understood what he was writing.

Well, I gotta think he knows his stuff better than I do.

Serge Besner
"An avid boater and fisherman with over 30 years of experience in the weather service from launching weather balloons in the High Arctic to forecasting for Aviation, Marine and Public."

[Highlander]

well u give me that nymph with very long legs & I,ll let u know how long she takes to turn me around / up-side down & more

J

[DaveC426913]

well u give me that nymph with very long legs & I,ll let u know how long she takes to turn me around / up-side down & more

Is that song lyrics??

[Highlander]

well u give me that nymph with very long legs & I,ll let u know how long she takes to turn me around / up-side down & more

Is that song lyrics??

Can,t answer right now too busy tossin & turnin & rollin !!

J

[dlandersson]

The reporter - probably not. There is an Corolis effect - but it applies to largish bodies of water - like Lale Michigan, etc. It would be failry hard to notice most of the time with regards to the wind - hurricans/tornados excepted - in term of the direction they rotate.

I'm not sure the author understood what he was writing.

Well, I gotta think he knows his stuff better than I do.

Serge Besner
"An avid boater and fisherman with over 30 years of experience in the weather service from launching weather balloons in the High Arctic to forecasting for Aviation, Marine and Public."

[Catigale]

Filed under the overflowing cabinet labelled

" The Demise of expertise"

[DaveC426913]

Filed under the overflowing cabinet labelled

" The Demise of expertise"

I take it your'e callin' foul too?

[Highlander]

Next thing u,ll b tellin us u r chasin Whales in Lake Ontario !!!
https://www.google.ca/maps/uv?hl=en&pb= ... AQoioIfjAK

J
PS & that,s BC by the way

[sailboatmike]

Well I can tell you at 38.0778428 South we have a clockwise CE