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Graph shows the average percentage of time, annually, that winds between 3,000 and 16,000 m (10,000 to 53,000 ft.) blow toward compass directions above Las Vegas, Nevada. This graph indicates that areas in the direction of the blue zones have a greater chance of being affected by tephra fall than do other areas. On an annual basis, the winds in the Long Valley-Las Vegas area blow toward a sector between N. 45° E. and S. 45° E. more than 50 percent of the time. The winds blow toward some easterly direction more than 80 percent of the time. These data are from Winds Aloft Summary of the Air Weather Service, U.S. Air Force. |
Miller, C.D., Mullineaux, D.R., Crandell, D.R., and Bailey, R.A., 1982, Potential hazards from future volcanic eruptions in the Long Valley-Mono Lake area, East-Central California and Southwest Nevada -- a preliminary assessment: U.S. Geological Survey Circular 877, 10 p.