Downslope Windstorms - RAL - UCAR
Downslope Windstorms - RAL - UCAR
Downslope Windstorms - RAL - UCAR
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A Unique Observation<br />
A Unique Observation<br />
Figure from Grubiši and Lewis (2004)<br />
“On another occasion (25 April 1955)<br />
a unique observation of the rotor<br />
circulation was made when the Sierra<br />
Wave Project sailplane broke apart in<br />
severe turbulence near the upwind edge<br />
of the roll cloud and the pilot, Mr. Larry<br />
Edgar, descended through this region<br />
by parachute. After being carried rapidly<br />
down the direction of the main stream<br />
eastward across the Valley below the roll<br />
cloud, he encountered a layer of calm<br />
air at about 2,500 m (1,300 m above the<br />
ground) below which he drifted westward<br />
in a wind estimated at 25 knots. He<br />
finally landed on the west side of the<br />
Owens Valley below the leading edge of<br />
the roll cloud.”<br />
-- Quote from Scorer and Klieforth (1958)
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