Freddie wrote:

On Sun, 28 Dec 2014 11:49:15 -0800 (PST), David Mitchell
wrote:
I would have expected
much lower temperatures. It's already well below the predicted
figure and falling quickly.
So would I Norman. In fact it reached 2.6 here and dropped below 0
before 1700, but barely fallen since then, so very odd.

There's warm affection occurring around the top of the ridge, so maybe
they're on to something?

Forecast temp for 1800z was -1. The actual temp at 1800z was -4.1. It has been
yo-yoing up and down since then and is currently (2040z) on -1 so there may
well be a bit of warm advection getting in. The forecasts on BBC News have been
going for temps as low as -7 to -8 in some country areas where there is a snow
cover.

--
Norman Lynagh
Tideswell, Derbyshire
303m a.s.l.
http://peakdistrictweather.org