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Archive for June 7th, 2009

Day 49 Starter’s guide to following the weather !

Sunday, June 7th, 2009

This is the starter’s guide to following the weather forecasts for anyone that has not yet mastered this fantastic and easily available information.

The Woodvale site has an up to date section on weather.

There are two charts:

Surface winds in knots & Wave height in metres and direction

Both these charts cover a period from the current time “000” hours to “180” hours future forecasts. This equates to 7.5 days ahead. The first two days are split into 3 hour forecasts then it goes to 6 hour forecasts for the third day then 12 hour forecasts for the remainder of the 7.5 days.

Both charts are changed by hitting “Next” below the relevant chart to provide the future hours forecast the relevant hour is shown above the chart on the left.

The surface wind speed summaries are denoted by colours with winds over 30 knots shown in yellow to red colours these are serious winds to watch out for.

If you put your pencil on the computer screen and scroll through you can see the change in wind direction that they are experiencing as the weather fronts pass through. The best wind direction is any arrow pointing from Australia towards Mauritius or one that flattens out the swell, which generally comes from the south.

Substantial waves and currents are created with local winds and the massive storms coming up from the Southen Ocean.  In the case of the wave height [shown in metres] it is the white and blue which makes for a more comfortable row for Guy and Andy. The best wind direction is any arrow pointing from Australia towards Mauritius.

Anything over 15 knots or so [Force 3+] or towards the yellow or red colours in swell would be potentially more difficult and will stop the rowing until it passes them by at which point they anchor and wait for it to pass.

The boat may well move towards incoming wind and swell so as to be corrected back on path while they are at anchor and are driven back to the most direct route.

If you have any questions please leave them in the comments below, we’ll endeavour to get back to you directly.

Flying Ferkins Support Crew out.