Weather for Sailors

[@viggosimonsen]

Excellent presentation. Good old-fashioned lecturing, thorough and deep - and without all the annoying distractions of loud background music and flashy graphics. Just as we like it. Thanks a lot

[@MihaSinkovec1981]

That was just a fantastic presentation! I'm almost lost for words. Thanks for sharing!

[@anesthesiabeyond8519]

It is an intense course for serous sailor. Loved so much! I learned so much from your presentation which was packed with information and personal experience! Thank you captain so much for sharing 👍👍👍

[@Mayaadventures]

This is GOLD! Thank you, very much!

[@GreenMntMoto]

I’m happy to have found your school - hopefully I’ll take full advantage’ many thanks for your guidance

[@EduardoMiri]

Best explanation I ever saw!! Thank you very much!

[@victorstellini3780]

Very nice indeed. Thanks for all the effort and the info. I am really looking forward to see the rest of lessons!

[@kerbifer]

A great presentation. Lots of the 'why' we tend to forget, which connects all the other knowledge we know together. Thanks for taking the time out to make, and upload this.

[@pasoslargos9329]

Excellent video. I was in need to review my meteorology and you explain things incredibly well in this video. It’s simple and straight forward. I appreciate it.

[@wernereckardt]

Thanks for making this lecture available. I have learned a lot!

[@armagan2613]

thanks a lot for presentation

[@miguelsilvano]

Great lesson (like all your other lessons)! Thank you for your time and effort.

[@lucaheierli4857]

Amazingly comprehensive lesson. Thank you for making this available. Wish I found this before my ocean trip to st Helena :)

[@donvito6924]

Thank you.... much appreciated

[@paraworth]

Amazing effort you have gone to help impart your knowledge. I am most grateful Thank you

[@nothwestresponse]

Excellent! Thank you.

[@lukethompson8942]

Thanks for a great presentation. Just have to reverse everything in my head because I'm in the southern hemisphere. Just one little mistake, cyclones don't intensify and turn into hurricanes, they're just hurricanes that spin the wrong way around.

[@CARLOSGONZALEZ-kq1od]

👍 that’s why there’s a low pressure in the sea of Cortez in the summer Thank you

[@shawn2742]

Outstanding video. Very knowledgeable. Not doubting your info but have a question that maybe you could explain: at roughly 29:30 you are talking about steering/heading relative to storm track. If the wind/waves is/are coming from NW, wouldn't I want my bow INTO them? Why would I want them coming into my stern? Again, not doubting the information, but from a very, very green sailor (only spent about 3 years periodically underway in US Navy FFG. No real sailing experience.) it would seem that I would always, especially in a storm, want my bow into the wind/wave.

[@mdschoolofsailing]

ShawnMichael121277 Shawn...Thank you for your comment and question. The recommended maneuvers sail you away from the storm track. Sailing into the wind on the left of track boat in the diagram will sail you into the storm track, and that's what we're trying to avoid... Tom

[@bromptonmicroadventures]

thank you very much

[@xferdroid]

Wouldn't it be more appropriate to characterize "warm air rising" as warmer less dense air in the center of a LOW is "pushed up" rather than "rising" because of the more dense cooler air surrounding that tends to spread into the less dense warmer air seeking its lowest possible point ? In other words, does a warm air molecule have special powers that defy gravity or does it merely float upon denser air below it?

[@Sorker00]

Great, great lesson, thanks. I suggest that the Wave Height Distribution bell curve has an error, in that Hs is by definition the wave height that is the 66.7 percentile of all waves, which means (as you say) that 1/3 will be higher. However, your "grey area" under the curve does not have the 1/3 point coinciding with the Hs point. I offer this out of respect for the important, very-credible work you have presented and I assume this is just a glitch. Thanks again.

[@mdschoolofsailing]

Sorker00...I understand the definition of Significant Wave Height to be the average height of the upper one-third of all waves, and this is, I believe, what the diagram shows... Thank you for your comments... MDS

[@Oceanchartercaptain]

Thanks

[@billturner2360]

I have a question. You mentioned these eddies can be moving 3 and a half to 4 knots. Can you get trapped in these while sailing? Lets say the winds died.... would you get trapped? Having to motor out of an eddie?

[@mdschoolofsailing]

A perceptive question... Yes, you can get trapped in an eddy in a sailing vessel when the wind dies... A number of years ago, I was trapped in one for a day and a half

[@billturner2360]

I know this might not be a good question.... but an eddie on a river can be very strong and trap you.

[@mdschoolofsailing]

Yes, and the same thing can happen at sea if the winds are lights and you are not able to maintain a good boat speed to help you get away from the eddy as some can be quite large, 50 miles or more in diameter.

[@Nretap]

min 47 PORTUGAL, not Spain. PORTUGAL

[@patrickmolloy6994]

47:17 he says Portugal

[@abatesnz]

V = f * L. And f = 1/T. So V = L / T or L = V * T. Yet at 45:36 you are saying v (knots) = 3 x T, so the longer the period, the faster the wave. What does that imply for the wavelength, L? A 10 second interval wave travels at 30 knots, a 13 second interval wave travels at 39 knots. This implies a 10 second interval period wave, travelling at 30 knots (so 55km/h), in comparison with a 13 second interval period wave, travelling at 39 knots (so 55km/h), has a L of 30 Knts * 10 = 300 NM / time unit as against a L = 39 * 13 = 507 NM / time unit, which is to say a ratio of 1 : 1.69 (or the square of v1 to v2). Hmmmm, are you sure that's right? I can imagine wavelength varying in proportion with V if T is constant, or L varying in inverse proportion to F, and thus in proportion to T, if V is constant, but V being proportionate to T seems a bit skew-whiff.

[@abatesnz]

OK, so at 47:53, you are saying L (ft) = 5 x T^2, so a 10 second wave has a L of 500 ft and travels at 30 knots, whereas a 13 sec wave has a 5 x 169 = 845 ft L and travels at 39 knots. Well, I guess what you are saying is consistent, but what is going on here ... the harder the wind blows, the faster the wave travels, the longer the square root of the wave is, the longer it takes to pass. That's astounding. A harder blowing wind results in a longer wave, by a factor of squares.

[@joebwan0240]

Great lecture! However the pronunciation of "height" as "height-th" (with a th sound at end) was driving me crazy. "Depth" and "Width" have a 'th' sound at the end, but "height" as a 't' sound at the end. Other than that verbal tick, the content was excellent by any measure.

[@nomadequipment2177]

Yeah that heighth was so cringey I couldn't watch this 😖

[@moonj24]

@@nomadequipment2177 Hang in there. Don't let your grammarian sensibilities be an obstacle to learning from someone who obviously knows his subject and teaches it well.

[@TERRY72763]

You Should Update Your Weather awareness Training, and Stop The Coriolis Effect Suggestions as We Know Storms are Independent and often 2 storms near one another will have counter rotation, irrespective of Equatorial Location, The Forces that cause Rotational direction are NOT a Coriolis effect and are still being Theorized... Just an observation