I did ask once how they verified the forecast for say Penzance. Apparently it was verified against Camborne, or so I was told. I asked following a day when, due to north coast sea fog, there was almost a 10C temperature between Penzance & Camborne. So as a post code verification system it left something to be desired.
There reply may or not have been correct as they also told me that the forecast for Scilly heliport & airport (the same place) were different because they were based on different grid locations, and refused to accept the Porthminster beach faces east therefore a NW wind was not onshore (that was subsequently corrected) etc. I no longer bother to contact them. I suspect some members of this group have a better idea how the verification system worked.
Anyway, this morning we have a thunderstorm warning & a <5% chance of rain. I can't help thinking the timing of the warning should have been split into at least 2 areas.
28mm of rain in the 24 hours to 09:00 today, the heaviest 18:00-20:30 yesterday.
Graham
Penzance