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-   -   Rate the rough water? (https://www.offshoreonly.com/forums/general-boating-discussion/240705-rate-rough-water.html)

redlinecat 10-13-2010 12:24 AM

Rate the rough water?
 
Is this 3' to 4's or what? Pictures are from destin.

http://i54.tinypic.com/i2ud1f.jpg
http://i53.tinypic.com/2bwuw5.jpg


Thanks

Audiofn 10-13-2010 01:23 AM

always looks smaller in a picture but I am going to say 1-2's

Indy 10-13-2010 06:39 AM

Hard to tell without scale but 3s in the top pic.

VetteLT193 10-13-2010 06:40 AM

no frame of reference, very hard to tell. I have pics that look like that and it was easily 3-5's. Other pics look the same and it's tiny 1 footers.

offshoredrillin 10-13-2010 06:57 AM

to me they look like about 2' rollers.

CigDaze 10-13-2010 07:06 AM

The perspective may be misleading me, but the first pic looks like they might be at most 1'ers - meaning 2' from trough to crest.

Catastrophe 10-13-2010 07:17 AM

If you were telling a story about racing a guy in them and winning........they'd be 6s.

:lolhit:

rchevelle71 10-13-2010 07:22 AM


Originally Posted by offshoredrillin (Post 3229288)
to me they look like about 2' rollers.

Agreed with 2'

rchevelle71 10-13-2010 07:23 AM


Originally Posted by catastrophe (Post 3229299)
If you were telling a story about racing a guy in them and winning........they'd be 6s.

:lolhit:

Funny, but TRUE:drink:

t500hps 10-13-2010 07:27 AM

I got in a long arguement on THT 6-7 weeks ago about wave heights on some pictures I posted. (42 Tiger at speed, out of the water, clearing 2 boat lengths). I called them 3, occasional 4 and everyone there swore they were 1-2's. That first pic looks very similar to the pics I posted.
Someone did finally say that wave height should be measured by the average 2/3rd's of the waves and from "level" to the top of a wave and not bottom of trough to top of the wave (1/2 of the total height we seem to measure).

Catastrophe 10-13-2010 07:52 AM


Originally Posted by t500hps (Post 3229306)
I got in a long arguement on THT 6-7 weeks ago about wave heights on some pictures I posted. (42 Tiger at speed, out of the water, clearing 2 boat lengths). I called them 3, occasional 4 and everyone there swore they were 1-2's. That first pic looks very similar to the pics I posted.
Someone did finally say that wave height should be measured by the average 2/3rd's of the waves and from "level" to the top of a wave and not bottom of trough to top of the wave (1/2 of the total height we seem to measure).

How do you know where LEVEL is ?
Shouldnt measurement be from the highest water that the boat can ride on to the lowest water the boat can ride on?

Never heard of 1/2 the distance.

redlinecat 10-13-2010 08:00 AM

OK so 2 to3s?
Ran from Destins cut to PanamaCity and back on the gulf.

First pic was the water we ran in. What a ride . Lots of air time.

Its hard to react as fast on the sticks as the motors rev. (ros280s) HaHa.

Boat pic was taken earlier in the day from the beach. got alot rougher later in the day.

Thanks

DollaBill 10-13-2010 08:05 AM


Originally Posted by CigDaze (Post 3229293)
The perspective may be misleading me, but the first pic looks like they might be at most 1'ers - meaning 2' from trough to crest.

Yes. 1's. Most people think 1/2's are 3/4's. REAL 4's are pretty big

AB From Windsor 10-13-2010 08:06 AM

To me they looked like 2-3'.

offshoredrillin 10-13-2010 08:08 AM


Originally Posted by catastrophe (Post 3229324)
How do you know where LEVEL is ?
Shouldnt measurement be from the highest water that the boat can ride on to the lowest water the boat can ride on?

Never heard of 1/2 the distance.

because the constant is always changing the calculation starts at half. meaning while looking at a beach with waves, the waves may come up 4 feet at crest and braking however when they go out they may go down 2 feet under normal level. there fore making the constant 2 ft above center :)

bigboat28 10-13-2010 08:13 AM

I just wish I was there to see for my self:drink:

Catastrophe 10-13-2010 08:14 AM


Originally Posted by offshoredrillin (Post 3229341)
because the constant is always changing the calculation starts at half. meaning while looking at a beach with waves, the waves may come up 4 feet at crest and braking however when they go out they may go down 2 feet under normal level. there fore making the constant 2 ft above center :)

But if I'm in rollers like in the pic and I am NOT launching the boat into the air and I fall 4 ft. into a hole where the boat rides next in the water, am I not in 4 ft. waves ?

Am I in 2 ft waves?

redlinecat 10-13-2010 08:30 AM

A few more pics.

http://i51.tinypic.com/mimgya.jpg
http://i55.tinypic.com/118lgs5.jpg
http://i56.tinypic.com/jtt3mf.jpg

Back4More 10-13-2010 09:10 AM

We call that "Flat" on Lake Mich.

30ctsutphen 10-13-2010 09:14 AM

Its a hard one to say especially from pics. we used to go out to glamis (Imperial sand dunes) youd take pics and look at them later and the place looked flat compared to how tall the razor backs really were.

Works the same in the waves they just look flat on camera.

I would call those pics 1 foot or less here in the bottom picture on LI sound!

But that could just be the camera flattening it out. We dont see the rollers you guys do down in FLA unless wereout in the atlantic then its a whole different story

smokeybandit 10-13-2010 09:16 AM

Last pics I would say "dead flat". But the sunset is beautiful.

t500hps 10-13-2010 09:20 AM


Originally Posted by catastrophe (Post 3229348)
But if I'm in rollers like in the pic and I am NOT launching the boat into the air and I fall 4 ft. into a hole where the boat rides next in the water, am I not in 4 ft. waves ?

Am I in 2 ft waves?

according the everyone on THT that is correct......and remember, I was in a Top Gun running beside a Tiger and at 70 we were getting 1-2 boat lengths of undisturbed water under the boat.
A number of other photos were posted and all had the same results. They claim was also made that true 3-4 footers would require enough wind to create that they WOULD have significant white caps.

Here are a couple of the photos I posted and was told they were 1-2's: linked from Randy Nuzzo's site.

http://photos.powerboatphotos.com/p2...69151#hf3ea188

http://photos.powerboatphotos.com/p2...9151#h111d7d45

http://photos.powerboatphotos.com/p2...9151#h12049c9b

offshoredrillin 10-13-2010 09:26 AM

1 Attachment(s)

Originally Posted by catastrophe (Post 3229348)
But if I'm in rollers like in the pic and I am NOT launching the boat into the air and I fall 4 ft. into a hole where the boat rides next in the water, am I not in 4 ft. waves ?

Am I in 2 ft waves?

Theoretically yes, ...see chart below

Wave Anatomy:

* Still-Water Line - The level of the sea surface if it were perfectly calm and flat.
* Crest - The highest point on the wave above the still-water line.
* Trough - The lowest point on the wave below the still-water line.
* Wave Height - The vertical distance between crest and trough.
* Wavelength - The horizontal distance between successive crests or troughs.
* Wave Period - The time it takes for one complete wave to pass a particular point.
* Wave Frequency - The number of waves that pass a particular point in a given time period.
* Amplitude - One-half the wave height or the distance from either the crest or the trough to the still-water line.
* Depth - the distance from the ocean bottom to the still-water line.
* Direction of Propagation - the direction in which a wave is travelling.

that's where the interpretation takes a turn, for all general purposes this shows total wave height. from trough to top

redlinecat 10-13-2010 09:27 AM


Originally Posted by t500hps (Post 3229399)
according the everyone on THT that is correct......and remember, I was in a Top Gun running beside a Tiger and at 70 we were getting 1-2 boat lengths of undisturbed water under the boat.
A number of other photos were posted and all had the same results. They claim was also made that true 3-4 footers would require enough wind to create that they WOULD have significant white caps.

Here are a couple of the photos I posted and was told they were 1-2's: linked from Randy Nuzzo's site.

http://photos.powerboatphotos.com/p2...69151#hf3ea188

http://photos.powerboatphotos.com/p2...9151#h111d7d45

http://photos.powerboatphotos.com/p2...9151#h12049c9b

Nice pics

Stormrider 10-13-2010 09:30 AM

In the 1st pic, 2s.
In the 2nd pic... flat.

Either is not rough, even for a 13ft whaler.

AIR TIME 10-13-2010 09:31 AM


Originally Posted by offshoredrillin (Post 3229404)
Theoretically yes, but not reality...see chart below

Wave Anatomy:

* Still-Water Line - The level of the sea surface if it were perfectly calm and flat.
* Crest - The highest point on the wave above the still-water line.
* Trough - The lowest point on the wave below the still-water line.
* Wave Height - The vertical distance between crest and trough.
* Wavelength - The horizontal distance between successive crests or troughs.
* Wave Period - The time it takes for one complete wave to pass a particular point.
* Wave Frequency - The number of waves that pass a particular point in a given time period.
* Amplitude - One-half the wave height or the distance from either the crest or the trough to the still-water line.
* Depth - the distance from the ocean bottom to the still-water line.
* Direction of Propagation - the direction in which a wave is travelling.

I was looking for that chart we all thank you for posting it.

Catastrophe 10-13-2010 09:37 AM

So this is the answer ??

Wave Height - The vertical distance between crest and trough.

redlinecat 10-13-2010 09:43 AM


Originally Posted by Stormrider (Post 3229408)
In the 1st pic, 2s.
In the 2nd pic... flat.

Either is not rough, even for a 13ft whaler.

First pic is rough for me running 80 to 100mph.

For your 13 foot whaler it would have been sunk if you made it thru the cut. lol

Heres a wave crushing 13' cat.
http://i54.tinypic.com/118io2q.jpg

redlinecat 10-13-2010 09:46 AM

Im gonna say 2's. It was a blast either way.

thanks

AIR TIME 10-13-2010 09:48 AM


Originally Posted by t500hps (Post 3229399)
according the everyone on THT that is correct......and remember, I was in a Top Gun running beside a Tiger and at 70 we were getting 1-2 boat lengths of undisturbed water under the boat.
A number of other photos were posted and all had the same results. They claim was also made that true 3-4 footers would require enough wind to create that they WOULD have significant white caps.

Here are a couple of the photos I posted and was told they were 1-2's: linked from Randy Nuzzo's site.

http://photos.powerboatphotos.com/p2...69151#hf3ea188

http://photos.powerboatphotos.com/p2...9151#h111d7d45

http://photos.powerboatphotos.com/p2...9151#h12049c9b

that water looks like it has a chop 1' and a wave height of 2 to 3 ' height and length of 15' apart which would give you the air, to me anyway. the length is like the start of a ramp as you go over it at 70 plus you get air sometimes ending up in a trough or crest. I have seen that low wave height but lots of air out at browns bank at the 1990 apba race after the sand bar which was under water[high tide] it cause length wise 30ft swell that was 3' tall once in a while 4' tall on the back coarse everywhere else it was a 2 to 3 foot chop and not much air at all, I think Freeze Frame has a video of it[plymouth mass 1990] the over all leader was a 32ft vee D-50 and in B class lady L was there with the rest of the gang. we were all on the out side of the coarse and never saw the swells until the video. they got a lot of air couple boat lengths on the back side and zip where we were.

Brad Zastrow 10-13-2010 10:00 AM


Originally Posted by Back4More (Post 3229390)
We call that "Flat" on Lake Mich.

Exactly what I thought. Nice flat day on Lake Michigan. Those are 1-2's at best.

VtSteve 10-13-2010 11:24 AM

Lots of different measurements. If you measure the back of the wave, it's generally thought to be more accurate for surfing conditions because you'd be measuring the wave, not the swell as it grows in shallower water. Interestingly, this method is somewhat larger than 1/2 of the face height (Crest to Trough).

Most of the world seems to use 2/3rds the height. Different for inland waterways than the ocean as well. Generally speaking, if the wave face on the lake is 4', then there are 4 footers. I think the NWS takes the face height average of two thirds of the highest waves.

Being out in the ocean on three to fives can be significantly different than Champlain, or the Great Lakes. The period is much shorter (usually) on inland lakes, and while your boat in in the trough, the crest of the next wave can be headed for the top of your bow. If they're close enough together, larger boats can effectively ride the top for a ways if consistent enough.

We've had some very windy days on Champlain now since mid-August, so I got to see a lot of how NOAA measures them. 2-3s are pretty irritating and painful for my little 22'. 3-4's mean I shouldn't have gone out, pay attention. One day I was doing the cross lake journey, it started out as 2-3's, built up to 4-5's. That meant I could be SOL. Thankfully, they were close enough that I didn't have to ride them down. But they were large enough that I couldn't go into the straight following sea, the bow would have stuffed on many of the larger ones.

My guess from the picture was 1-2. But pictures rarely show the proper perspective


Then you can see whacked out waves like these :eek:

Teahupoo

SHAWNA 10-13-2010 11:42 AM


Originally Posted by Back4More (Post 3229390)
We call that "Flat" on Lake Mich.

That's what I was thinking. Actually, I'd call them "foot-and-a-halfers"!

SS930 10-13-2010 12:00 PM

Looks like 1-2, but pics can be very deceiving!

Stormrider 10-13-2010 12:29 PM


Originally Posted by redlinecat (Post 3229425)
First pic is rough for me running 80 to 100mph. Could very well be, but that was not the question.

For your 13 foot whaler it would have been sunk if you made it thru the cut. lol Impossible... really.

Heres a wave crushing 13' cat.
http://i54.tinypic.com/118io2q.jpg

1985 13ft whaler, 28evinrude, 7ft waves. Every one a big breaking whitecap. No other boats outside of E.R. Inlet (Atlantic), except for a tug. Followed him back in the inlet at 5mph. Prayed the whole way in.

DMAX 10-13-2010 04:56 PM

1 Attachment(s)
How big are these? Lake Winni in Sept "09"

DMAX 10-13-2010 05:01 PM

1 Attachment(s)
another

seafordguy 10-13-2010 06:02 PM


Originally Posted by t500hps (Post 3229306)
I got in a long arguement on THT .

My God - how a year changes things. Last year you were pounding waves in a nice Formula 382 - now you're passing time by picking fights on a fishing boat website. Queer......:evilb::evilb::evilb:

ActiveThunder 10-13-2010 06:05 PM


Originally Posted by DMAX (Post 3229744)
How big are these? Lake Winni in Sept "09"

A better question is how big are those rocks you people have just under the water level? :drink:

Comanche3Six 10-13-2010 06:06 PM

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