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Old January 11th 07, 06:15 PM posted to uk.sci.weather
Will Hand Will Hand is offline
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First recorded activity by Weather-Banter: Nov 2004
Posts: 7,921
Default [WR] Haytor 11/01/07 (Very windy)

Inversion at 2500 feet meant air was trapped going over Dartmoor, hence a very
windy day.
Lee wave activity too leading to strong lee gustiness in Exeter.

Max wind was at 1150 with a measured 10 minute mean speed at 3m agl of SW 18
knots gust 43 knots.
This converts to SW 31 knots gust 56 knots (64 mph) at 10m agl.
That fits in nicely with surrounding data and a force 7 at my house (sheltered
from SW) was consistent with other evidence. Full blown gale/severe gale on open
moor earlier in morning with several small trees and branches snapped off in the
part of Haytor adjacent to open exposed moorland.

This is my highest recorded gust at this station since I started wind
observations in Jan 2005.

Will.
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A COL BH site in East Dartmoor at Haytor, Devon 310m asl (1017 feet).

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