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Sigma KEE - Blizzard

blizzard

A Blizzard is a Snowing with surfaceWindSpeed of over 35 KnotUnitOfSpeed for a sustained duration of at least 3 HourDuration. The strong Wind results in blowing Snow causing the %Region affected to have visibilityInMeteorology reduced to less than 400 Meter.

Relationships
Parents	storm	Storms occurs in an area where its Atmosphere is dominated by a LowPressureWeatherSystem with Air moving in MotionUpward.Surface Wind of over 30 KnotUnitOfSpeed and or Precipitation are Likely associated with Storms.