On 27/11/2015 19:15, Col wrote:
On 27/11/2015 11:37, Tudor Hughes wrote:
On Friday, 27 November 2015 10:51:20 UTC, Freddie wrote:
Bob Martin Wrote in message:

Rain radar shows no rain within 100 miles of me in South Hants
yet we've had 1.6 mm in the last hour.


It has its well-documented limitations.
--
Freddie
Pontesbury
Shropshire
102m AMSL
http://www.hosiene.co.uk/weather/
http://twitter.com/PontesburyWx for hourly reports


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What proportion of its shortcomings are due simply to the radar
beam passing over the top of very low and shallow precipitating
stratus? This has certainly happened the in the past.
Fairly continuous but light drizzle here up to now (1130). No
hill fog.

And then of course you have those instances when precipitation
evaporates before it hits the ground.
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Stephen Davenport gave me a very good explaination of why this can be
missed a couple of years ago although that was partly due to the lack of
stations in East Anglia which wouldn't normally affect here or the S.E.
Dave