On Thu, 28 Apr 2011 13:00:53 -0700, Dawlish wrote:


.......and how much has forecasting at 10 days improved over the last 30
years?

According to February's Weather, ECMWF forecasts for 500hPa heights
appear to be as accurate at 10 days as they were at 7 days thirty years
ago.



--
Graham Davis, Bracknell, Berks. E-mail: change boy to man
To consider the Earth the only populated world in infinite space is as
absurd as to assert that in an entire field sown with millet only one
grain will grow. - Metrodoros, 300BC