"Waghorn" wrote in message
...

Dunno if this is a glitch but the GFS seems to be producing some extreme
rainfall events for the SE-
http://www.wetterzentrale.de/pics/MT8_London_ens.png
12Z run ,upto 85mm on the 29th.
Never seen that before ,


Nor have I. The 12Z EC ensembles are similarly 'spikey' but not to the
extreme of the GFS.

18Z GFS 3 hour totals to 18Z Tuesday http://64.246.48.81/pics/Rmgfs483.gif

Clearly the potential is there for some very high totals with forecast
profiles indicating tops to 40000ft again, probably more with overshoots.

Jon.