Comments on “A Climatology of Cell Mergers with Supercells and Their Association with Mesocyclone Evolution” and “The Influence of Cell Mergers on Supercell Characteristics and Tornado Evolution on 27–28 April 2011”

Fischer, Jannick; Flournoy, Matthew D.; Lyza, Anthony W.

doi:10.1175/MWR-D-23-0120.1

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Comments on “A Climatology of Cell Mergers with Supercells and Their Association with Mesocyclone Evolution” and “The Influence of Cell Mergers on Supercell Characteristics and Tornado Evolution on 27–28 April 2011”

2023
By Fischer, Jannick ; Flournoy, Matthew D. ; Lyza, Anthony W.
Source: Monthly Weather Review, 151(9), 2541-2545

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Journal Title:

Monthly Weather Review
Personal Author:

Fischer, Jannick ; Flournoy, Matthew D. ; Lyza, Anthony W.

Fischer, Jannick ; Flournoy, Matthew D. ; Lyza, Anthony W. Less -
NOAA Program & Office:

NWS (National Weather Service) ; OAR (Oceanic and Atmospheric Research) ; CIWRO (Cooperative Institute for Severe and High-Impact Weather Research and Operations) ; NCEP (National Centers for Environmental Prediction) ; NSSL (National Severe Storms Laboratory) ; ... More +

NWS (National Weather Service) ; OAR (Oceanic and Atmospheric Research) ; CIWRO (Cooperative Institute for Severe and High-Impact Weather Research and Operations) ; NCEP (National Centers for Environmental Prediction) ; NSSL (National Severe Storms Laboratory) ; SPC (Storm Prediction Center) Less -
Description:

Two recent articles investigated the evolution of supercell mesocyclone intensity during storm merger events using radar-indicated azimuthal shear. Both found that initially strong mesocyclones tended to weaken while initially weak mesocyclones statistically most frequently tended to intensify during the merger. However, these studies did not include null cases. In this article, random supercell periods are analyzed to test if a similar pattern of mesocyclone intensity variations happens in the absence of mergers. A similar pattern is found, suggesting that these intensity variations are stochastic rather than linked to merger events. Based on this finding, the datasets and conclusions of the previous two articles are reevaluated collaboratively.
Keywords:

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Atmospheric Science
Source:

Monthly Weather Review, 151(9), 2541-2545
DOI:

https://doi.org/10.1175/MWR-D-23-0120.1
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0027-0644;1520-0493;
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PDF
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American Meteorological Society
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Journal Article
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Submitted
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urn:sha256:f06be41dea0505a1de117eefd731b4729f926a29e34d0bc118e0ed26323dc5d8
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https://repository.library.noaa.gov/view/noaa/55774/noaa_55774_DS1.pdf
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Comments on “A Climatology of Cell Mergers with Supercells and Their Association with Mesocyclone Evolution” and “The Influence of Cell Mergers on Supercell Characteristics and Tornado Evolution on 27–28 April 2011”

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