News and Topical items

GRIB Apps

The page GRIB Apps has been updated


Climate Change

The page on Climate Change has been revised and updated.-


Satellite derived winds

These are no longer available from the US satellite. Use winds from the European satellite.


Latest additional pages

GRIB file format

A description of how GRIB files are formatted


UK Global and NAE model output

Vector winds and other parameters from the UK Global and NAE (meso-scale) models are available online.


Grid length in NWP

As from February 2010, the Met Office has been running its global model with a grid length of 25 km. The US GFS has been usimng a similar grid length since May 2010. The benefits should be in the better prediction of large scale weather.


Weight of wind

Is this a real or imagined effect? See Page on Weight of wind


Basic theory

Pages on Coriolis and other fundamentals.


Data used in forecasting

A new page on the many sources of data used in NWP. this gives a steer on some of the factors limiting the ability to preduct on the fine scale.


Frank's Logs

Cruising Association
Hallberg Rassy Owners Association
Royal Yachting Association
Royal Cruising Club
Conference of Cruising Clubs
  Royal Meteorological Society
I am a member of the Cruising Association which provides much information on a mutual exchange basis. The CA has a number of awards for such voluntary work. In 2004 and in 2009 (jointly with John Claver) , I received the Brittain Cup for "Pilotage Information".
I am a member of the Hallberg Rassy Owners Association, a most friendly group of sailors with superb yachts. In 2002 they kindly gave me the Christoph Rassy Endeavour Trophy for a "significant contribution to yachting."

I have been a Royal Yachting Association member for many years as a dinghy sailor and a cruising yachtsman. I have a Yachtmaster (Offshore) certificate. In 2004, I received the RYA Community Award "Services to the World of Yachting".
In 2007, I received the Royal Cruising Club Medal for "Services to Cruising". With such previous winners as K Adlard Coles, Blondie Hasler, the Hiscocks and Olin Stephens I am clearly in very good company and very honoured indeed.

I am very pleased to be associated with the Conference of Cruising Clubs. Together with the RYA the CYCC does much unsung work for the cruising sailor. The CYCC comprises those yacht clubs and associations in the British Isles that provide sailing directions ie the ASA, BCYA, CCC, CA, FYCA, ICC, NWVYC, OCC, RCC, RCC Pilotage Foundation, RNSA, RNYC and RYS.


I am a longstanding member of the Royal Meteorological Society. In 2003 they awarded me their Michael Hunt Prize and Life Membership of the Society for "Increasing the understanding of meteorology among the sailing community". Winner the previous time was my old friend, and colleague as a senior forecaster with the Met Office, David Houghton. David is nonpareil in the matter of weather for racing sailors and did much good work helping sailors to win Olympic gold.