page_title: Brown Willy effect
hierarchical_section_title: Brown Willy effect
caption_attribution_description: English: Brown Willy from Rough Tor. Brown Willy is 420m / 1378ft above sea level, and the highest point of Bodmin Moor and of Cornwall. Photograph by Stephen Dawson, 2 October 2003
context_page_description: The Brown Willy effect is a particular example of a meteorological phenomenon known as peninsular convergence, which sometimes occurs in the south-west of Great Britain. It leads to heavy showers developing over the high ground of Bodmin Moor in Cornwall, which then often travel a considerable distance downwind of their place of origin. The effect is named after the hill, Brown Willy, the highest point on the moor and in Cornwall as a whole. It is thought that the Boscastle flood of 2004 was caused by a particularly extreme example.
context_section_description: The Brown Willy effect is a particular example of a meteorological phenomenon known as peninsular convergence, which sometimes occurs in the south-west of Great Britain. It leads to heavy showers developing over the high ground of Bodmin Moor in Cornwall, which then often travel a considerable distance downwind of their place of origin. The effect is named after the hill, Brown Willy, the highest point on the moor and in Cornwall as a whole. It is thought that the Boscastle flood of 2004 was caused by a particularly extreme example.
caption: Brown Willy, highest point in Cornwall
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