Molokai 2007 - weather forecast Print E-mail
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Written by Rob Mousley   
Wednesday, 16 May 2007

ImageThe Molokai Challenge is famous for its huge downwind conditions – and for this reason many paddlers consider it to be the holy grail of surf ski paddling.

Typically a 15-20kt ENE wind blows across the Molokai Channel and paddlers ride 10ft swells with 20-30ft faces.

But the weather forecast for the 2007 race shows a very different picture.

NOAA Forecast

Lead weather forecaster Pat Caldwell released this bulletin for Sunday:

Brutal conditions with minimal trade windswell in the models for Sunday.  

Large scale flow light to gentle out of SE, so with the upstream island shadows, pretty darn glassy except for localized coastal breezes. 

The southie (from 190-200 degrees) should be 3'  17 sec open ocean, meaning top spots 2-3 ocn 4 Hawaii scale, just a moderate episode.  At most, the odd 5 Hawaii scale set for the biggest spots, one of which is Portlock, so some lucky bugga could luck out and get the odd big set (one such set about every 2 hours).  The travel distance is 4500 nm, which is a bit further than the average south swell, so the sets should be less frequent.  The buoy is out on the equator, so no updates to the forecast until it hits buoy 51002, with about a 9 hour lead time.

The NOAA website is at http://www.prh.noaa.gov/hnl/pages/SRF.php

Buoyweather

Buoyweather shows the following forecast.  Seems to show pretty much the same story.

 ImageImage

The Buoyweather site is at www.buoyweather.com 

What does it mean?

Image
Course map
 

A much longer, harder race.  Instead of the lead paddlers surfing for 3 ½ hours, they'll will be grinding on glassy seas with little help from the wind (which may even be a headwind if Buoyweather is right) and across waves running almost directly side-on for around 4 ½ hours. 

This means that strength and fitness will play a larger role than experience and downwind skills, so benefiting the younger paddlers such as Hank McGregor, Clint Pretorius and Dawid Mocke all of South Africa.  The downwind specialists like Oscar Chalupsky (SA), Mark Sandvold (US) and Dean Gardiner (Aus) will be cursing their luck.

Australians Ash Nesbit and Dean Beament and Lewis Laughlin of Tahiti have done most of their training on flatter water and so may be better conditioned for this race.

Whatever, it will still be a grueling contest and fascinating to watch.

If the forecast changes, we'll update the site with the fresh information... 

Race website: www.molokaiworldchampionships.com
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Comments (4)Add Comment
Good Work!
written by Kenneth Moore, May 16, 2007
Rob, the Molokai reporting has been first-class. SSI may have done more to promote this year's race than any other single medium (after the big O, of course).
Mahalo for the Good work. Keep it up.
And let's have an exciting finish for the 'Molo!
Ken Moore
Kaneohe, HI
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...
written by Scott, May 17, 2007
I agree, the reporting has been excellent. Far better than anything we've seen on Oahu!

I doubt the southerly groundswell will matter much. What will be the biggest factor is the lack of the tradewind swell. The groundswell with a 16 second period will not really affect the paddling conditions, whereas the dying tradewinds could make for a flat, muggy paddle, or worse, a slight headwind.

I wish the competitors well, and hope the forecasts are inaccurate and the trades come back in time for the race.
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4pm Thurs. HI Forecast isn't exciting (unfortunately)
written by Kenneth Moore, May 18, 2007
...been waiting for this forcast; we're now close enough to Sunday's race - and there's not much wind forecast. It suggests a (very) hot, flat race. Light headwinds would be better than moving along in a self-generated doldrum should the wind stay 5 kts from the SE.
Good Luck paddlers!
Ken

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE HONOLULU HI
340 PM HST THU MAY 17 2007

.SYNOPSIS...MOST AREAS FAIR AND DRY WITH WEAKER WINDS.

&&

.DISCUSSION...THE HIGH PRESSURE RIDGE CONTINUES TO WEAKEN AND MOVE
SLOWLY TOWARD KAUAI FROM ITS MORE FAMILIAR POSITION WELL NORTH OF
THE ISLANDS. THUS NO CHANGE IN THE CURRENT TREND TOWARD WEAKER AND
MORE SOUTHERLY WINDS...24 HOUR STATEWIDE PRESSURE DROPS OF ONE TO
ONE AND A HALF MILLIBARS ARE IN SUPPORT. NEXT WEEK LESS VIGOROUS
LOWS PASSING NORTH OF THE RIDGE SHOULD FAVOR A RETURN OF BOTH THE
RIDGE BACK TO THE NORTH AS WELL AS COMFORTING TRADE WINDS BY NEXT
WEDNESDAY.

THE CLOUD PATTERN IS ALREADY TURNING TO ONE OF WEAK CONVECTION
THIS AFTERNOON AS OUR TRADE WINDS LOSE THEIR STEAM. THE DAYTIME
FORMED CLOUDS HOWEVER ARE BEING CAPPED BY A LOW 6 THOUSAND FOOT
TEMPERATURE INVERSION ALLOWING LITTLE IN THE WAY OF SHOWERS.
THIS STABLE UPPER LEVEL ENVIRONMENT SHOULD GO UNINTERRUPTED EXCEPT
FOR A WEAK SHORTLIVED TROUGH COME SATURDAY...IN OTHER WORDS NOT
ONE HUNDRED PERCENT DRY BUT CLOSE TO IT.

&&

.HFO WATCHES/WARNINGS/ADVISORIES...
NONE.

&&

$$

MATSUDA

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Headwinds for the Molo?
written by Kenneth Moore, May 18, 2007
I realized I sounded in contradiction to Scott, who may have many more Molo's than my one. I guess my concern for Sunday's race is Heat Retention should the RELATIVE wind (wind speed over the paddler's skin)drops near 0. So my thought is having a slight headwind might be a whole lot safer, if slower than a light tailwind.
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