• Source: Tornado outbreak of June 23, 2002

      • A small but intense tornado outbreak occurred predominantly over McPherson and Brown County, South Dakota on June 23, 2002. A supercell thunderstorm produced six tornadoes in 72 minutes within the two counties. Two of the tornadoes were rated F3 and F4 respectively, and caused considerable damage to several homes and farms. Two other tornadoes occurred in North Dakota during the same time. The outbreak in Brown County was documented by a group of storm chasers and was featured on an episode of The Weather Channel's Storm Stories.


      Meteorological synopsis


      The area hit by the outbreak was in a drought; in the past three months, the area had only received four inches of rain. On June 23, a triple point was set up across eastern South Dakota, setting the stage for a powerful supercell to form.


      Confirmed tornadoes




      See also


      Weather of 2002
      List of North American tornadoes and tornado outbreaks
      List of F4 and EF4 tornadoes
      List of F4 and EF4 tornadoes (2000–2009)
      2003 South Dakota tornado outbreak – Tornado outbreak that affected similar areas one year later


      Notes




      References




      External links


      Brown County supercell research

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