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50' Post in Rough Water - Lake Huron

Discussion in 'Post Yacht' started by jrp4783, Sep 25, 2013.

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  1. jrp4783, Sep 25, 2013
    #1
    jrp4783

    jrp4783 Member

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    Here's a video from August running North on Lake Huron. The winds were coming out of the North about 25 knts with gusts to 30 knts. The kids were actually in the master stateroom watching movies. It's hard to see the size of the waves in the video. The weather forecast called them 5-7 ft with a max wave height if 10 ft.

    https://www.youtube.com/watch?v=3rTp2jBym48
  2. Beau, Sep 25, 2013
    #2
    Beau

    Beau Senior Member

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    JRP

    Classic head sea ride for a Post. Not enough bow flare to knock down the spray, but a hugh forward stateroom. What rpm were you turning?
  3. coastalgeorge, Sep 25, 2013
    #3
    coastalgeorge

    coastalgeorge New Member

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    Im with you Beau, that looks like a typical day when we see 4/5 plus. I run a 46 and if I cant get 18/20 knots I push water 30 feet in all directions!! haha but I wouldn't trade that boat for anything but a bigger Post!!!
  4. Capt J, Sep 25, 2013
    #4
    Capt J

    Capt J Senior Member

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    The 50' Post likes to run with the FWD tank empty as quick as possible.......meaning transfer it to the main aft tank as quick as possible, especially with the weight of a dinghy.....but the 50' post does usually ride pretty decent in a head sea, but is a wet boat also.....
  5. RT46, Sep 25, 2013
    #5
    RT46

    RT46 Senior Member

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    its really hard to tell from the video, but that is about how my 46 would ride at the same speed in the same conditions.
  6. jrp4783, Sep 25, 2013
    #6
    jrp4783

    jrp4783 Member

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    I think around 1400-1500 rpms. When I run that slow the soot is usually pretty bad.
  7. jrp4783, Sep 25, 2013
    #7
    jrp4783

    jrp4783 Member

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    Capt J - I had transferred the fuel to the rear. The dinghy may be a bit heavy for the boat. It's a 13ft AB with a 60 hp Yamaha. It most conditions less than what's in the video I normally can't tell it's there.
  8. RB480, Sep 25, 2013
    #8
    RB480

    RB480 Senior Member

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    I think I was probably traveling from Harrison township around the same time on a 56 Hatteras. We had those conditions on Huron the whole way.
  9. Beau, Sep 26, 2013
    #9
    Beau

    Beau Senior Member

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    RB Just curious, did your Hatt also have white water up on the bridge?
  10. RB480, Sep 26, 2013
    #10
    RB480

    RB480 Senior Member

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    We did for sure!
  11. MBevins, Sep 26, 2013
    #11
    MBevins

    MBevins Senior Member

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    Gotta remember that 5-7's on the Great Lakes are nastier than the same on the the ocean.
  12. Capt Ralph, Sep 26, 2013
    #12
    Capt Ralph

    Capt Ralph Senior Member

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    I don't understand that, Maybe;

    Folks on the lakes can not measure feet and it's really 7 to 9?

    Ah, the lake effect and there is an undertow of current?

    Water temp is lower and it is more dense water (than salt water?).

    When predicting the weather, the forecaster really types A after every sentence?

    Or, your really surprised when the forecast is for smooth seas and it turns to mush.

    I was really enjoying another fine Post thread. I love you guys and enjoy every Post, post. Until this one... WTF?
  13. Capt J, Sep 27, 2013
    #13
    Capt J

    Capt J Senior Member

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    I agree that 5-7' on the Great Lakes are rougher than on the ocean. You have less floatation because freshwater is less bouyant (which is a smaller effect). But the waves are always short and steep. They are never spaced far apart or swells...... it's like being in a nasty chop, but just bigger.
  14. Capt Ralph, Sep 27, 2013
    #14
    Capt Ralph

    Capt Ralph Senior Member

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    Give me a break. There is no nasty chop in the oceans. It's bigger in the lakes. Less buoyant water makes it worse.

    Stuff happens everywhere. It gets ugly anywhere. When it breaks loose and your not prepared, well then it's the worst.
  15. Capt J, Sep 27, 2013
    #15
    Capt J

    Capt J Senior Member

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    I'm comparing it to a 1-2' nasty chop in an ocean. Not one that is unsafe, but one where you're in a 30' CC and get your teeth jarred. The 5-7's in the Great Lakes are never swells, they are also very short spaced and uncomfortable. All I am saying is 5-7' in the Great Lakes is more uncomfortable than most 5-7's in the ocean, not comparing them to 20' seas.
  16. MBevins, Sep 27, 2013
    #16
    MBevins

    MBevins Senior Member

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    You are absolutely correct. We rarely get swells. They are always very close together, and steep (no matter the wave height). I was caught in a storm years back on Lake Huron that produced 15-20's that were breaking.
  17. P46-Curaçao, Sep 27, 2013
    #17
    P46-Curaçao

    P46-Curaçao Senior Member

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    A little confused here

    As I live in Curaçao and maybe we have different weather conditions, I'm a little confused here, so please help me out...

    I'm reading '1-2' nasty chop', for me that's 30-60 cm and we don't even call that a wave, it's just a wrinkle in the water...:)

    I prefer not to go out with waves over 2-2.5 meter (6-8 feet), just for comfort, not because my 46 Post can't handle it.

    For our weather and sea conditions, you can look at:
    WindGURU: Curaçao - Curacao
  18. Off Duty, Sep 27, 2013
    #18
    Off Duty

    Off Duty Member

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    I hate days like that, very tiring after a while. When I am getting 3 waves in a row on the bridge I usually pull back to ten knots to keep the spray lower so I can see lobster traps. It would be impossible to clear one off the props in those conditions. I once picked up a loose piece of fishing net in the Gulf Stream coming back from the Bahamas in 4 to 6 feet. Luckily it only caught one prop, had to run on one engine right up to the beach off Ft Lauderdale and go under to cut it off. It took about 50 dives to get it off, after that I bought a Brownies hooka system and permanently mounted it in the engine room with a fresh air pickup in the saloon behind the couch. Clearing lines from the props is much easier now if the waves permit going under the boat.