Relief Rainfall over Snowdonia, North Wales

June 23, 2013 — Leave a comment

Good example of orographic rainfall this morning as a deep summer depression moves off into the North Sea and strong NW polar maritime winds bring heavy rainfall to the mountains of North Wales 23 June 2013. Note that the relief rain picks out the coast and the highest mountains where land rises steeply forcing more condensation and higher rainfall intensity. Note also the lower rainfall intensity in the valleys, Ogwen / Nant Ffrancon valleys can be clearly seen drawn out by lower rainfall!

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