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Whats the largest documented Supercell?

April 26, 2017Chaser chasers documented largest storm stormtrack Supercell tornado track twister

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Whats the largest documented Supercell?

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Not sure on total storm size, but the largest documented mesocyclone on record may be the Superior NE supercell from June 22, 2003 (the same day and just south of the famous Aurora hail event). This was sampled by the Eldora radar during BAMEX operations, and Roger Wakimoto has a few slides from preliminary analysis of the event starting here: http://www.joss.ucar.edu/bamex/meetings/wa…ther/sld007.htm In summary, the mesocyclone diameter was ~ 20 km and had a differential velocity of ~ 118 m/s. Typical values are 3-10 km across and delta Vr of 25 m/s.