Offshore swell question

PENN

seasaw

Newbie
Oct 31, 2007
6
1
San Diego
Name
Stephen Speiser
Boat
24 Seapro
I've been using swell watch and noaa to decide if I want to take my relatively small (23 ft) boat offshore for blues.
I didn't go out because the forcasts were for 3 - 5 ft swell Friday & yesterday. Then I read reports from folks who say it is calm & nice. What am I doing wrong (besides not just going)? Any advice would be most welcome!
 
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longboard85

I Should Upgrade My Account
  • Dec 14, 2011
    1,580
    5,725
    La mesa ca
    Name
    cody
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    17 ft invader cc (Somethings Fishy)
    Lately the period of the swell has been spread out which makes for a smooth ride and also helps while spotting kelp I've been taking my 17ft er all over lately.
     
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    John S.

    Member
    Aug 4, 2008
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    Valley Center, CA
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    John
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    1996 Seaswirl 1850 W/A
    Ideal? Variable winds at 10 knots or less. Swell at 14 seconds or longer. I have been out in very large swells at 20 second intervals and had no concerns. I have been out in mixed seas with a tight interval and had to really watch what I was doing. I run a 19 foot W/A. I was out Saturday offshore and it was very nice. Winds out of the South suck. So, watch the wind forecast and really pay attention to the swell interval and if a mixed swell is forecasted.

    John
     
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    RyanErb

    Love to fish!
    Aug 7, 2012
    1,668
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    Ryan
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    OnTheWater
    Swell period should be at least two times the height. Etc 5ft 10s. Fun way to test is look at the forecast, go out, see how it is and turn around if it's too hairy!


    Sent from my iPhone using Tapatalk
     
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    Frijolez

    Member
    Apr 22, 2013
    264
    113
    Huntington Beach, ca, u.s.a.
    Name
    Dan
    Boat
    Mako 192 cc
    I charge 70-100 miles every time I go out on my 19 foot center console. I agree with everyone above- long duration 14 to 16 seconds or more is great. I dream of the day when I can have a 23 footer running off shore!
     
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    Arima-bob

    Ship faced aquaholic
    Mar 9, 2012
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    Beeulzebob
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    uh....
    My last trip out was for the yellowtail shootout. Forecasts called for five foot swells st 19 seconds... A little lump at the gate, but pretty much glass all day.
     
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    tanner.s

    Fish Slaughterer
    Oct 18, 2012
    1,896
    599
    San Diego
    Name
    Tanner
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    1997 Proline 23 W/A
    As others have said, as long as it is long period, you'll never even notice a swell.

    Sent from my SM-G925V using Tapatalk
     
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    ReelTight

    Reeltard
    Aug 24, 2015
    100
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    oceanside ca
    Name
    Robert Harned
    Boat
    "Yeah, She's Gone!" 175 Aquasport Striper
    Lately the period of the swell has been spread out which makes for a smooth ride and also helps while spotting kelp I've been taking my 17ft er all over lately.

    My 17' aquasport striper handles 30 mi offshore no prob!! Love the deep v design for offshore stability!! 17' is a good boat for just enough fuel range to get on the "hot zone", in the warm water months!! (Original post) Long periods are mellow but watch out for wind chop.
     
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    dcarlisle

    Captain
    Jun 25, 2008
    668
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    The Island
    Name
    Dave
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    Boatless
    It's more about a combo between the swell, wind, and current.
    If the swell is short period, and the wind is against it, then you get into the steep stuff. 23' is pretty good size if you have decent height on the gunnels. If driven correctly, you should be safe in the average seas we get in SoCal.
     
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    Reel hip

    Meet my "Well known Member"
    Feb 19, 2008
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    Doug
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    25ft Skipjack fly
    Ideal? Variable winds at 10 knots or less. Swell at 14 seconds or longer. I have been out in very large swells at 20 second intervals and had no concerns. I have been out in mixed seas with a tight interval and had to really watch what I was doing. I run a 19 foot W/A. I was out Saturday offshore and it was very nice. Winds out of the South suck. So, watch the wind forecast and really pay attention to the swell interval and if a mixed swell is forecasted.

    John
    Yes pay attention to the wind. On smaller boats it can make or break your day
     
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    Predatormonster

    PredatorMonster
    May 18, 2013
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    Cali
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    Dan Monster
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    Predatormonster
    I have a 23 footer and pay most attention to wind . When there has not been any wind for atleast 12 hours , its usually really nice . Duration on swell watch will tell me when its too close together . You can check the actual bouys on noaa and it will tell you the wind wave height . Thats a great tool .
     
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    spize909

    I Should Upgrade My Account
    Mar 14, 2004
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    jeff
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    no
    I have a 23 footer and pay most attention to wind . When there has not been any wind for atleast 12 hours , its usually really nice . Duration on swell watch will tell me when its too close together . You can check the actual bouys on noaa and it will tell you the wind wave height . Thats a great tool .

    This is a good one for wind too.
    http://passageweather.com/
     
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    Islandhook'r

    Almost A Member
    May 24, 2009
    106
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    thousand oaks/ca/usa
    Name
    Scott Reynolds
    Boat
    21' wellcraft sportfisher CC
    Time on the water is what you need ! You will figured out your limits cause i promise you that boat can handle more weather then you can. No disrespect but same with my boat. i'll head in way before my boats in any real danger. Sometimes you got to test your limits and you would be surprise on what you can do. And hopefully ride home is down hill to make for a smooth ride home
     
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    Derby

    My "Member" is Well Known.
    Sep 9, 2010
    5,064
    2,511
    SouthBay SF
    Name
    The Kid
    Boat
    Aquasport 222 FFV
    Swell period should be at least two times the height.

    Exactly. It's not just the period, but the period in relation to the magnitude.

    A 14 sec period is fine for 5-8' swells....not so much for a 12-14' swell. But 10-12' at 20 sec...perfectly fine.

    Then add wind and multiple swell directions.

    You just got to go out and be prepared for plan B...even if that is going home.
     
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