Safe common ground between friends or complete strangers starting conversation . With me its a safety valve to prevent blowing a gasket I get so annoyed by the Met Office cost us a fortune sure I read £390 Million a year . I have mailed them several times after getting a soaking when no rain was forecast . I am adding an extract of the response , if you are speaking to strangers or friends please feel free to use the dialogue as you see fit:-
Perhaps it will help to know that the Met Office graphics' output is derived directly from our models and there is no manual intervention to edit that data. The output is automated and a blend of many different models. Given the symbols are updated within every hour, the process also employs an element of "nowcasting" which automatically utilises the most recent available observations from across the UK and around the world.
Our computer model produces an excellent representation of the weather symbols, temperatures etc. but sometimes, through the process of averaging over a three hour time period, or averaging over an area, some of the small scale detail can be obscured. However, the forecasters can (and do) update the regional texts if the complexion of the weather significantly changes. These texts are routinely updated at 04:00 and 16:00 every day. When the symbols and the regional texts are taken together, and with an appreciation for the localised nature of weather, we believe you will gain the best possible forecast.
What I gleaned from this is that they use computer generated forecast and you must read that in conjunction with a regional forecast updated only twice a day at 4 am and 4 pm or you can stick your head out the door and check or you can find a field of cows and see what they are doing apparently all seem to have an equal chance of getting it right but the latter two don't cost millions of pounds .