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Rogue Waves


Planet X-1

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I have no clue as to what those charts mean or how to read them properly sorry.....

 

 

What does all that mean in layman's terms? the easier the better for me thanks

 

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Thanks for this, X-1! Fascinating stuff. yes.gif
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Rogue waves, in theory, never exceed 40-50'. Even during large storms, waves up to 90' were considered to happen only in legends. It has been calculated that waves can`t exceed 100` due to the weight of the water.

 

For a 162' or (260') to even exist is unreal. Something must be triggering the large waves.

 

a real 50' wave

 

http://www.naval.com/heavy-seas/3/burin.jpg

 

vs

A computer image of 72' Andrea Gail hit by 110' wave (based on readings)

 

http://www.sgi.co.jp/features/2000/sep/summerfx/images/lg_perfect_storm1.jpg

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Just to add:

Based on the size of the Andrea Gail, the wave pictured above would be about the size of the wave 162' reported by the USCGC NORTHLAND. And the wave is probably 100' smaller than the 260' wave reported by the HANSA VISBY.

 

 

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QUOTE (chaotica @ May 31 2006, 08:30 AM)
I have no clue as to what those charts mean or how to read them properly sorry.....


What does all that mean in layman's terms? the easier the better for me thanks

There's a link at the bottom of the NOAA website that explains the symbols.

here's what it all means, hope it helps.

 

ship ID - NLGF

Hour (GMT) - 12

Lat. - 26.0 North

long. - -20.3 East (the minus sign denotes East as opposed to no minus sign which is West, the hemisphere we inhabit.)

WDIR (wind direction) none given

WSPD (wind speed) none given

GST (wind gusts) none given

WHT (wave height) 162.4 feet

DPD (dominant wave period) period of time between wave crests - 99.0 seconds

Pres (atmospheric pressure) none given

Ptdy (pressure tendency) in other words, is the pressure rising or falling? -0.01. The negative number indicates it is falling.

Atmp (atmospheric temperature) - 80.1 degrees F

Wtmp (water temperature) - 73.0 degrees F

Dewp (dewpoint) - none given

Vis (visibility) - 6.2 miles

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QUOTE (Grandpa Grizz @ May 31 2006, 12:00 PM)
The Cutter Northland was commisioned eighty years ago and has a colorful history.  From the website Planet posted, it appears that the 162' wave was the most recent report from that ship.  That was nineteen hours ago. ohmy.gif

I'm so way off. This Northland is the second ship to carry that name, commissioned in 1984.

 

I was 12 hours off on the time thingy too. unsure.gif

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this is really interesting, altho i don't understand a lot of it.

so....there aer multiple readings of rogue waves, on separate days, and from separate locations, and also separate vessels?

 

where/how can we look for more collaborating info? nothing's been in the news that i've seen. where else to look?

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