We (East Cambs) currently have a yellow warning for rain from the Met Office
(with a forecast last updated at 1400 (BST?) though I don't know about the
warning) but 2 columns to the right on our MO 3-hourly forecast page, the
probability of rain is 5% for the rest of the day. Is it that there's a
tiny chance of an inundation of truly biblical proportions? Or is the
warning system totally out of phase with the forecast updates?

I'm sure that there's a good and logical reason - and not wishing to indulge
in any UKMO-bashing - but it's beyond my waning powers of deduction.

JGD