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"The UK Weather Guide" @ http://www.ukstorms.com
"Succorso" wrote in message
...
Chris Mantle wrote:
Can anyone confirm the heavy rain over East Anglia or is the radar
playing
up. I have taken a look a the sferic on the Met Office site and nothing
appears to be showing plus the radar sequence does appear to be rather
strange

Thanks


Chris
Kempston Bedford.





nah, lovely summers evening in Norfolk. Dunno what all that rubbish is
on the Radar; CAVOK here...

Chris
Swaffham, Norfolk


From http://www.booty.demon.co.uk/uswfaqfr.htm

Anomalous propagation. When the temperature and / or the humidity changes
sharply with height, a mirage effect bends the beam and normally invisible
objects intrude into the return. Classic examples occur when nocturnal
cooling is especially strong; with sea-breezes where cool, marine air
undercuts warm / dry land air, and with the similar cool undercutting
downdraughts from well-organised mesoscale convective clusters. Be aware
though that in extreme cases, even the filtering applied may allow some
anomalous echoes through.

Steve