"Waghorn" wrote in message
...
An excellent example of how the upper trough currently extending SE
has
engaged the previously weak front
-and v graphic in WV Joe
http://www.sat.dundee.ac.uk/pdus/BW/...31200BW1_g.jpg
and the developing low for tomorrow,due to 'bomb' to ~970hpa.

Wot's the record for May?

BTW large swathe of closed cells over the Atlantic

http://www.sat.dundee.ac.uk/abin/pic...3/1138/ch2.jpg
is this unusual?

--
regards,
david
(add 17 to waghorne to reply)

Hi David,

You beat me to it, it looks very pretty indeed, as should satellite
pictures later on today as the aforementioned low bombs to 969hPa (as the
MetO would have it).

The closed convection is forming in Pm air behind the cold front which is
unstable to the sea temperatures. However, it is being suppressed by the
ridging aloft ahead of the trough deepening tomorrow's low, seen on the WV
image you posted. This warming should be evident on the 12Z Valentia
sounding, we'll wait and see.

ATB, Joe