52.07999 -2.80241 Met Office CIMO assessed Class 4 Installed 1/9/1999
One glance at the above site image indicates this is not Hereford itself. Originally RAF Credenhill it is now known as “Stirling Lines” and home to the SAS. It is obviously not generally open to public inspection. It is also not a good site but it is currently being touted for a July hotspot figure.
The Met Office assesses this site as lowly Class 4 contrary to Tim Channon’s original Class 2 report. https://tallbloke.wordpress.com/2012/09/09/wmo03522-hereford-credenhill/
I feel Tim called that wrong in not considering the immediate topography and only concentrating on the hedge and boundary lines.
That embankment is the first warning sign of things not being as they really should be and highlighted by hache marks on the Ordnance survey sheet.
The entire site is artificially levelled with the weather station at the end of the rugby pitch immediately in front of the embankment works. This is remarkably reminiscent of the Pitsford site which is similarly prone to over-recording from thermals around embankments. Today and this coming weekend 11th July has the Met Office over ventilating and hyping up the a warm weather period as the “Third heatwave of the “season”. Weatherobs currently shows a high in the Hereford vicinity. at 14:00 11/7/2025.
The stand out issue here though follows on from my RNAS Culdrose report. The SAS are the Special Air Service after all and this is a major training facility. The headline image shows the helicopter use of the area and it is very obvious that helicopter rotor wash has major effects on temperature readings readily. A record can easily inadvertently occur from being picked up by a fast reacting PRT reading – the temptation to “engineer” such an event must be very great! Looking at this site in 2D indicates the likely take off and landing paths of the helicopters.
All put together this is yet again an unsuitable site for contributing readings to the national historic temperature record……but could prove very useful for other more dramatic purposes.
via Tallbloke’s Talkshop
July 11, 2025 at 08:33AM
Iowa Climate Science Education 