So, to sum up, if I may....
Representatives of the UKMO repeatedly tell me that it isn't possible to decode TAFs online, because they are international, and not everyone speaks English.
NOAA do exactly what the UKMO say is impossible, but although the code is "international", there turn out to be variations, even between two of the most prominent nations involved in weather forecasting.
The email address to write to is -
[email protected]
Bernard Newnham