Severe Weather Forecast
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Severe thunderstorms

TORRO defines a severe thunderstorm as producing one or more of the following:
  • one or more tornadoes and / or waterspouts
  • hail intensity of at least H3 at ground level
  • non-tornadic winds gusting to 55 mph or more at surface (but which are not part of synoptic-scale straight-line winds of such velocities)
Thunder/lightning does not necessarily need to be present for any of the conditions listed above to occur.

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