On Sunday, 30 July 2017 16:41:28 UTC+1, Dave Ludlow wrote:

I assume that the heaviest part of the downpours were too brief to
register on radar - can anyone tell me if this is a common problem, as
I haven't noticed it occurring to this extent previously. Or is it
likely to be a rainfall radar calibration issue?

I notice that your local radar (Dean Hill) is off the air at the moment. Maybe it was at the time of the heavy rain too? If so, you would've experienced some quality degradation in your area.

It is possible for radar to "miss" heavy cells - this depends on the spatial and temporal resolution of the data. At 5 minute temporal and 500 metre spatial, I don't think a lot will be missed - especially in a frontal situation.

--
Freddie
Fishpool Farm
Hyssington
Powys
296m AMSL
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