Spring Equinox: Occurs on or about March 21. Squal: A sudden gust of wind that increase 15 to 20 knots thats last for a short duration many times with heavy rain or snow.
Equinox - The point in time when the vertical rays of the Sun are striking the equator. In the Northern Hemisphere, March 20 or 21 is the vernal or spring equinox and September 22 or 23 is the aiitunnal equinox.
 See also: Halo, Summer, Thunder, Meteor, Low
  
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