In article ,
"Keith(Southend)" writes:
Surprised at the Met Office warning so early, I wouldn't have expected
any major snow for at least 24 hours?

snip
29/13:59: Heavy Snow - London & South East England

FLASH Warning of Heavy Snow for London & South East England valid from
1600 Tue 29 Dec to 0300 Wed 30 Dec

Only for the usual suspects of Bucks and Oxon, though (which
meteorologically I think shouldn't really be included with the SE). And
on the station reports from 1700 (I think it was), I noticed that it was
indeed snowing in High Wycombe.
--
John Hall "[It was] so steep that at intervals the street broke into steps,
like a person breaking into giggles or hiccups, and then resumed
its sober climb, until it had another fit of steps."
Ursula K Le Guin "The Beginning Place"