14' swells !!!!

Travel discussion for St. John
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Pia
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14' swells !!!!

Post by Pia »

OK, hold on here we go :D

There is a "front" moving through with expected waves of 14' with wind as well :shock: - should effect the N Shore for the next few days.

http://forecast.weather.gov/shmrn.php?mz=amz730

Pia
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Steve S
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Post by Steve S »

OK surfer dudes, what do 12' swells in the open sea typically translate to on the shore?
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augie
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Post by augie »

Steve S wrote:OK surfer dudes, what do 12' swells in the open sea typically translate to on the shore?
Depends on the contour of the bottom, but in layman's terms, I'd expect the waves to be "big".

8)
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alw1977
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Post by alw1977 »

Wow, I'd love to see some pics or videos of what this looks like if anyone captures some images. 14-foot swells don't sound very Caribbeanish to me.

This is why I stick to travel in the off-season (ok, well this and the rates). Absent a hurricane, seas are usually flat, flat, flat.
jmq
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Post by jmq »

These wind and wave reports are for nearby BVIs

Big swells noted in this report
http://magicseaweed.com/Cane-Garden-Bay ... eport/480/

Note wave height on this one given in meters. Surfs up!
http://www.windfinder.com/forecast/beef_isl_tortola

Should be some decent wave action on STJ north shore over next couple of days.
When we come to place where the sea and the sky collide
Throw me over the edge and let my spirit glide
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waterguy
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Post by waterguy »

Pia stay out of the water we don't want you drifting to Africa
Tom
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KatieH
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Post by KatieH »

12' swells :shock: Yikes! I am not looking forward to that ferry ride tomorrow.....
minnjim
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Post by minnjim »

We don't arrive until Sunday. Hope it moves out by then. Hey, somebody take some pictures!!!! :shock:
Badger5
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Post by Badger5 »

What is normal for this time of year?? We will be arriving on Thursday.
Nic in KC
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Post by Nic in KC »

Wow, I can't even imagine what that looks like on St. John. I'd love to see pictures too.
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Exit Zero
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Post by Exit Zero »

Read the advisories on : www. wunderground.com -use 00801 Zip

or www. weathercarib.com which all the sailors swear by

to google some real data - NBDC Station 41043

The NWS is giving the possible VI wave heights at 20' in their coastal flood warnings

The surfers are waxing the boards!!!
They are moving the boats off the moorings in Hull Bay as well.
minnjim
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Post by minnjim »

From Weatherunderground:

Statement as of 10:18 AM AST on March 18, 2008


... Coastal Flood Watch now in effect through Friday afternoon...
... High surf advisory in effect until 2 PM AST Friday...

Very large long period northerly swells generated from a major
winter storm system across the northwest Atlantic are approaching
the regional Atlantic waters this morning... and will begin to move
into the coastal zones of the local islands late this afternoon
and evening. The leading edge... or first swells... of this swell event
had just begun to reach buoy 41043... located some 185 miles due
north of St Thomas... around 8 am this morning. These swells will
begin to reach the local coastlines with exposure to the
north... by mid to late afternoon... and increase quickly after
sunset to 6 to 8 feet overnight across the deep open waters.

A secondary surge of swells of 10 to 12 feet or greater are then
expected to arrive along the local coastlines late Wednesday
afternoon or evening and increase further overnight through
Thursday... when the peak wave heights are anticipated. Long period
swells moving through the local waters typically produce breaking
waves 2 times that of the swell height... due to the steep slope
of the ocean floor. Breaking wave heights along the outer reefs
and Shoals of the local Atlantic coastlines are therefore expected
to build to 12 to 16 feet tonight... and increase further... peaking
at 20 to 24 feet late Wednesday through Thursday. This will
create a high potential for coastal flooding along the local
beaches with northwest through northeast exposure... Tuesday
evening through Friday afternoon. This may become the largest
winter swell event in the past few years. Wave run-up along the
local beaches may reach elevations 2 to 4 feet above sea level.

High surf warnings for breaking waves of 20 feet and greater will
likely be issued Wednesday or as conditions warrant.


The greatest potential for coastal flooding and beach erosion will
be during times of high tide.

The times of the high tide for the following locations are:

San Juan harbor: 6:36 PM Tuesday at 1.0 feet
Magens Bay St thomas: 5:41 PM Tuesday at 0.3 feet

A coastal Flood Watch means that conditions are possible for coastal
flooding... causing inundation of coastal roads... low lying areas...
and beach erosion. Residents and local officials should be prepared
to take protective actions in case coastal flooding occurs or
warnings are issued. This situation will be closely monitored. Keep
tuned to NOAA Weather Radio for further information. While there is
still time... coastal residents should make important preliminary
plans to protect your life and property.

Large breaking waves will generate strong and dangerous currents
within the surf zone... called rip currents. These narrow outward
flowing currents can carry people and animals away from the coast
line and out to sea. If you become caught in a rip current... do
not panic. Calmly... remain afloat... gather your bearings relative
to the beach... and swim parallel to the beach. You will eventually
leave the grip of this narrow current... and be able to safely swim
to shore.

Local beach goers... surfers and swimmers are urged to stay out of
the water until these hazardous surf conditions subside. Persons
on the beach should be vigilant for large breaking waves surging
upon the shore... which can carry people of all sizes into the
ocean. You should avoid being near the shore line and stay off of
rock formations.

Stay tuned for any additional statements or possible watches or
warnings from your National Weather Service forecast office in
San Juan.

This product... along with other weather... hydrological and
climate information... is available on the web at
http://www.Srh.NOAA.Gov/sju or at http://weather.Gov.
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Chet
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Post by Chet »

OK surfer dudes, what do 12' swells in the open sea typically translate to on the shore?
Take the Zodiac to the north shore of Tortola. Or fly to San Juan and go to Aviones, or La Ocho, or drive west to Rincon and Gas Chambers. The best waves are found where the swell is not slowed by a continental shelf or other islands. The north shore of Tortola and PR are open to the deep Puerto Rico Trench. The wave speed and period are unaffected and the swell jacks up on the reefs and rocks at full power. But you still gotta know where to look. And remember - localism rules when the waves get above 10'...the locals wait and wait for days like this, and a bunch of groms mucking up the break is not cool.
When the going gets weird, the weird turn pro.

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shoemak38
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