Friday, September 25, 2015

Downburst #2

Downbursts usually occur in "families" and that is the case this evening as a second distinct downburst (at this point, a "microburst") has occurred from a second thunderstorm that formed on the original downburst's gust front (scroll down).

Here is the Doppler wind data as of 6:10pm. The original downburst's winds are the thicker arrows. The second downburst, to the northeast, is shown by the thinner arrows.

Here is the latest reflectivity data at 6:18pm. You can see the second thunderstorm south of Haysville which caused the second microburst.

2 comments:

  1. Interesting topic Mike.

    Do you think it could be possible to get microbursts in low CAPE environments, like 500j/kg or less?

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  2. Steven, that would be a great topic for some research. My guess is no. I suspect you need higher CAPE than that.

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