On Wednesday, January 11, 2017 at 11:24:52 AM UTC, Alastair wrote:
On Wednesday, 11 January 2017 10:14:52 UTC, Graham Easterling wrote:
SNIP
Going to get some at home for sure with that polar low running down the
Tamar (T+48 FAX).

Will
--
It's that sort of feature that can give a very strong wind here, often a good deal more than the a glance at the isobars suggests, due to the Lands' End peninsula squeezing the flow and also a funnelling effect down the NNW-SSE orientated valleys (a feature resulting from a tilting of the approx 300' raised beach) For those that know the area Chapel Carn Brea was an island, now surrounded by the 30' plateau. (Well 250' towards the south 350' along the north coast.)

Sorry, drifting back into my geomorphology days.

Graham
Penzance

Do you mean a 300' plateau? When would that have been formed, the Eemian?

The 300' raised beach (or plateau as it is today) is a dominant feature in the far SW - basically the Land's End peninsula. There are large numbers of other raised beach levels, but none come close to dominating the landscape like the 300' one does.

This is the view from Chapel Carn Brea, 3 miles from Lands End looking across the 300' 'beach' (now a plateau!) http://www.themodernantiquarian.com/...size/88923.jpg It is slightly tilted SSE, which is the direction most of the rivers flow (check an OS map & you'll see)

Along the north coast from Cape Cornwall to St Ives the 'beach is narrower, and has resulted in a farmed area between the cliffs & the moors. Seen rather well here https://www.cornwalls.co.uk/sites/de...om-sperris.jpg.

The view from Cape Cornwall from Sennen probably shows the raised beach best http://c8.alamy.com/comp/B70P1W/senn...all-B70P1W.jpg A consistent 300' cliff where the sea has subsequently eroded back into it.

There's a lot on ages of the various levels if you do as bit of googling. It's a very complex sequence of events.

Graham
Penzance