Not something I would use lightly. Can I say mini-blizzard based on
duration! Snow heavy then wind got up and visibility down to about 40
metres. Blowing every where off roofs , trees etc.Temp dropped from 2C
to -0.4C virtually instantly. See he-
http://www.laindonweather.co.uk/trends.htm

Bearing in mind that's in a Stevenson's Screen. Everywhere white with about
a cm of snow and more in the drifts that form.
Lasted about 15-20 mins and shower showed well on radar. Interestingly the
snow is melting on the road despite the temperature being -0.5C because it
was such a rapid cooling the road is still warm. The opposite way round to
normal! Most notable event of the winter here by far.

Dave