In article , Ken Cook kencook@copley
durham.freeserve.co.uk writes
"Paul C" wrote in message
...
Minima (weatheronline)

Carlisle -9°

and -5C yesterday morning

Well done the much-maligned Met Office computer-generated forecast
of -7C to -9C for Penrith (see post "Weekend min temp" from Calum on
21st)

ATB,


The min of -9c at Carlisle looks a bit suspicious to me.

The hourly temperatures reported were

2300 1.7c
0000 1.8c
0100 0.2c
0200 -0.5c
0300 -1.9c
0400 -0.7c
0500 -5.4c
0600 temperature not reported
0700 no report
0800 1.1c

In the 0600 SYNOP the only item reported was the minimum temperature of
-8.8c. Everything else in the SYNOP was missing.

The temperature of -5.4c in the 0500 SYNOP looks wrong. The MSL pressure
reported at 0500 was 922.4 mb which is obviously wrong. The pressure
tendency at 0500 was reported as falling 56.6 mb in 3 hours, also
obviously wrong.

It looks to me as if the instrumentation threw a bit of a wobbly.

Norman.
--
Norman Lynagh Weather Consultancy
Chalfont St. Giles
Buckinghamshire E-mail: