Norman wrote:

Dave Cornwell wrote:

MartinR wrote:
Bit blowy up there.

MartinR
---------------------
Is the 173 mph record in danger I wonder? Was that measurement a gust?
Dave

Of course, one can never be really sure because, as far as I know, the
instrumentation is only exposed for a few minutes every hour - at least that
was the case in the past. Unless there is continuous recording you can never
know what exactly is the maximum gust.


Apologies (again) for replying to my own postings. I'm making a habit of this!

From the Cairngorm weather website:

-----------------------------------------------------
The instruments are exposed for 3 minutes every half hour, with the mean wind
speed being the 2.5 minute mean of readings made every 2.5 seconds. The max
gust and the min wind speed are the highest and lowest readings over the 2.5
minute period.
-----------------------------------------------------

The absolute maximum gusts are therefore not recorded and it is not possible to
say that a particular event produced "record" maximum gusts.

--
Norman Lynagh
Tideswell, Derbyshire
303m a.s.l.