From Tallbloke’s Talkshop

By Ray Sanders 

15th September 2025 marked the fifth time this year that Dundreggan Rewilding Centre weather station recorded the regional highest temperature. That, in itself, is not especially improbable until you discover that the site has only been recording temperatures since 23rd May 2025. Given that the adopted CIMO regulations are now well over a decade old, the Met Office should reasonably be expected to be installing good quality sites – they are not. This is a preliminary review similar to that of Whitesands to be followed up with further details when available to answer previously raised questions and possibly take legal action.

Dundreggan automatic weather station is only rated CIMO Class 4 despite being the most recently installed Met Office site. The Met Office has chosen to open yet another site that is officially – “Class 4 (additional estimated uncertainty added by siting up to 2 °C)”

The obvious question is, why within a site extending to over 10,000 acres could the Met Office not find a Class 1 location? Well almost certainly because they probably did not want to. The red kite mark in the headline image marks the “WGS84” coordinates supplied by the Met Office themselves. These are more commonly referred to as GPS (Global Positioning System) and are accurate to within at worst a metre. Although there are, as yet, not up to date maps or images including the Stevenson Screen this is a close-up aerial image of where the screen almost certainly is located.

Yes, those black rectangles are solar photovoltaic panels. Google maps automatically orient north to top so all northerly wind is sheltered by the tree line. Despite 10,000 acres of open “Rewilding” site the Met Office managed to find the only car park.

If this is correct, as I strongly suspect it is, then this is a deliberate and blatant action on the part of the Met Office to produce intentionally corrupted data.

If anyone can provide corroborating (or refuting) information or imagery I would be extremely grateful. If this really is the situation then there are potential grounds to take legal action against the Met Office.