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Helm Wind

HELM WIND, a wind that under certain conditions blows over the escarpment of the Pennines, near Cross Fell from the eastward, when a helm (helmet) cloud covers the summit. The helm bar is a roll of cloud that forms in front of it, to leeward.

See " Report on the Helm Wind Inquiry," by W. Marriott, Quart. Journ. Roy. Met. Soc. xv. 103.

Note - this article incorporates content from Encyclopaedia Britannica, Eleventh Edition, (1910-1911)

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