OCEANMASTER SAIL TRAINING DUBLIN. SOURCES OF W EATHER INFORMATION 1 2007PERSONAL/SOURC ES OF WEA THER
SYNOPTIC CHARTS FOR 5 DAYS
SYNOPTICS OR FIVE DAYS – ANOTHER SOURCE
DUBLIN AIRPORT IN PLAIN ENGLISH – ALSO ANY AIRPORT
VERY ACCURATE INDEED FOR UP TO 18 HOURS
7 DAYS WEATHER MAPS
LINK TO THEYR – ACCURATE FORECASTS EVERY 3 HOURS FOR 3 DAYS
WEATHER MAPS FOR A WEEK OR MORE – WIND MAINLY
GOOD FORECASTS FOR WIND AND WEATHER AIMED AT SURFERS
GENERAL WEATHER FOR UP TO A MONTH
SUPER SITE FOR ALL SORTS OF THINGS!
INSHORE WATER OF UK
ECMWF (European Centre for Met and Weather forecasts)
Gives a good picture 10 DAYS out
OCEANMASTER SAIL TRAINING DUBLIN. SOURCES OF W EATHER INFORMATION 2 2007PERSONAL/SOURC ES OF WEA THER
Click on the SLP (Sea Level Pressure) and 850 Hpa [5000 foot] wind line – the second from
Note ECMWF charts are for 5000 feet up and are in metres per second m/s.
Not a problem. Double Metres per second to get knots
Then remember that winds at sea level are about 30% less than at 5000 feet and are backed
by about 15 degrees. Over land they are probably 50% less and backed by 30 degrees.
That sounds complicated but it isn’t really. These images are really good for getting an
overview up to 10 days away.
Look at this chart for Tuesday 8 th October. It shows that all the big wind is well off the west
coast with a storm in mid Atlantic. Ireland is under a ridge of high pressure belt with light SW
In the Atlantic we see winds of 20 m/s (yellow) and up to 35 m/s (dark green)
That equates to 40 – 70 knots at 5000 feet. At sea level probably about 25-45 knots
This is what Met Eireann says today 5 th Oct about next Tuesday 9th October
Tuesday will be a dry day with sunny intervals and moderate, southwest winds.
So our assessment is correct and agrees with Met Eireann.
Again looking at the chart above, it is a good day to cross the Bay of Biscay with light winds.