"Eskimo Will" wrote in message
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wrote in message
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Quite impressive. Below freezing widely in SE and Central Southern
England (eg -2 in Wokingham) but + 6.7 deg as I arrived at work on Fleet
Street just after 0800.

When I was forecasting at London Weather Centre in the late 70s/early 80s
the default minimum for central London in winter was 7C. i.e. if you were
unsure, just go for 7C and you would not be far out on a radiation night.
As you observe it can be -4C in the sticks and 7C in central London. I
suspect the heat island has spread a bit too?


That was weekdays of course, you had to go for a default 4C at weekends!
Only exception was with a strong wind advecting colder air in, one day the
temperature flat-lined day/night at -1C in a cold easterly.

Will
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http://www.lyneside.demon.co.uk/Hayt...antage_Pro.htm
Will Hand (Haytor, Devon, 1017 feet asl)
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