On Monday, August 28, 2017 at 7:57:43 PM UTC+1, Nick Gardner wrote:
Interesting drop in RH% and DP just before the arrival of the sea
breeze. No idea why - anyone?

Time; temp; RH; DP; direction; speed (mph). I don't now how the
following table will look when posted as a binary. Hope it makes sense.

13:05 26.7C 63% 19.1C NW 2
13:10 26.9C 60% 18.5C NW 3
13:15 27.1C 47% 14.8C WSW 3
13:20 27.2C 41% 13.4C WNW 4
13:25 27.2C 46% 14.6C NW 5
13:30 27.3C 46% 14.7C W 4
13:35 27.4C 52% 16.7C S 2
13:40 27.6C 58% 18.5C S 7
13:45 27.6C 54% 17.4C S 6
13:50 27.7C 61% 19.5C SSW 8
13:55 27.8C 60% 19.3C S 9
14:00 27.8C 60% 19.3C S 9
14:05 27.7C 61% 19.5C S 9
14:10 27.7C 62% 19.7C S 8

--
Nick Gardner
Otter Valley, Devon
20 m amsl
http://www.ottervalleyweather.me.uk

Maybe brief entrainment of drier air from above boundary layer.
Incursion of sea breeze is seldom a smooth affair.

Len
Wembury, SW Devon