Inland Sailing Wind Conditions

   I'm not convinced the term 'sea breeze' is correct for inland waters.  
Jim C is quite right about heating and gradients.  Plymouth is a great example - on a hot day the south facing slopes of Dartmoor heat, air rises and cooler air is sucked in off the sea giving the sea breeze.
Inland waters probably get a similar effect from local features.  I have heard that Datchet can get some type of 'sea breeze' (probably should call it thermally induced breeze) from the heating of the tarmac at Heathrow.  
Can't think what local feature at Grafham or Hunts would induce this effect, but i really can't believe that its the sea breeze from the Wash.  The flow cell for that air movement would cover most of East Anglia.

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ASok Send Private Message Find Member's Posts Really should get out more Joined: 26 Sep 07 Location: United Kingdom Online Status: Offline Posts: 739	Post Options Post Reply Quote ASok Report Post Quote Reply Topic: Inland Sailing Wind Conditions Posted: 26 Aug 09 at 4:09pm
	I'm not convinced the term 'sea breeze' is correct for inland waters. Jim C is quite right about heating and gradients. Plymouth is a great example - on a hot day the south facing slopes of Dartmoor heat, air rises and cooler air is sucked in off the sea giving the sea breeze. Inland waters probably get a similar effect from local features. I have heard that Datchet can get some type of 'sea breeze' (probably should call it thermally induced breeze) from the heating of the tarmac at Heathrow. Can't think what local feature at Grafham or Hunts would induce this effect, but i really can't believe that its the sea breeze from the Wash. The flow cell for that air movement would cover most of East Anglia.

tack'ho Send Private Message Find Member's Posts Really should get out more Joined: 08 Feb 06 Location: United Kingdom Online Status: Offline Posts: 1100	Post Options Post Reply Quote tack'ho Report Post Quote Reply Posted: 11 Sep 09 at 9:38am
	At risk of raising an old topic. Sea breezes do occur over Northern East Anglia under specific conditions. They do tend to flow from the wash direction, and tend to be more prevelant here and make it further inland than elsewhere in the country as suface friction is low (have you noticed how flat it is?) and the massive thermal effect of the huge fields and dark earth in mid spring (before the crop cover becomes to thick) However the breeze is rarely very strong and doesn't last very long, usually 1500-1700ish. Edited by tack'ho
	I might be sailing it, but it's still sh**e!