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| a National Weather Service warning of winds having speeds of 48 knots (55 mph, 25 m/sec) or greater |
| a rapid and considerable drop in temperature, usually affecting a large area |
| anticyclone (ān'tē-sī'klōn', ān'tī-) Pronunciation Key
A large-scale system of winds that spiral outward around a region of high atmospheric pressure. In the Northern Hemisphere the wind in an anticyclone moves clockwise, and in the Southern Hemisphere it moves counterclockwise. Compare cyclone. |