In message , Mike Tullett
writes
I don't often look at this chart, so don't know how long this has been
around. There an odd warm patch west of Iceland on the MO sea temp chart,
up to 10C is the centre. Real or erroneous?

http://www.wetterzentrale.de/pics/brack5.html

It wasn't there on the previous issue, dated 19th. It certainly doesn't
look realistic, unless there's a new volcanic island brewing :-).

Perhaps a faulty sensor on a drifting buoy? That could quite likely
result in an oddity if the chart production is wholly automated. Quality
control.....????

Norman.
(delete "thisbit" twice to e-mail)
--
Norman Lynagh Weather Consultancy
Chalfont St Giles 85m a.s.l.
England