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Sigma KEE - Storm

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.

Relationships
Parents	weather process	WeatherProcess is the broadest class of processes that involve weather, including weather seasons (not to be confused with instances of SeasonOfYear), weather systems, and short-term weather events.
Children	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.
	snow storm	A Snowstorm is Snowing at the snowfallIntensity of more than 5 Centimeter per HourDuration.