I don't know why there's a severe weather warning for snow for this area due to
come into force at midday while the current weather forecast predicts no
precipitation before 1800. Such discrepancies do the credibility of the Met
Office no good at all. Timing is very important. For example, snow very quickly
affects bus services, including the many school buses that operate to the
villages and remote farms. If there is a genuine threat of snow from midday
onwards then afternoon bus services could be disrupted. If there's nothing
before 1800 then there's no problem.

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