The initiation and organization of convective cells atop a cold-air outflow boundary

T. M. Weckwerth; R. M. Wakimoto

doi:10.1175/1520-0493(1992)120<2169:TIAOOC>2.0.CO;2

The initiation and organization of convective cells atop a cold-air outflow boundary

T. M. Weckwerth, R. M. Wakimoto

Remote Sensing Facility

University of California at Los Angeles

Research output: Contribution to journal › Article › peer-review

83 Scopus citations

Abstract

On 13 July 1986 a cold-air outflow from thunderstorms over Illinois and Missouri propagated through the MIST (Microburst and Severe Thunderstorm) network over northern Alabama. The study of this outflow is important since the gust front was solely responsible for the initiation of numerous convective cells. Previous studies have documented the initiation of convection due to colliding gust fronts. In addition, there was a pronounced mesoscale organization of the cells atop the outflow boundary. This was most likely due to a combination of Kelvin-Helmholtz (K-H) and internal gravity (IG) wave activity. In contrast to previous cases, the K-H wave crests were oriented nearly perpendicular to the gust front within the analysis area. -from Authors

Original language	English
Pages (from-to)	2169-2187
Number of pages	19
Journal	Monthly Weather Review
Volume	120
Issue number	10
DOIs	https://doi.org/10.1175/1520-0493(1992)120<2169:TIAOOC>2.0.CO;2
State	Published - 1992

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10.1175/1520-0493(1992)120<2169:TIAOOC>2.0.CO;2

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title = "The initiation and organization of convective cells atop a cold-air outflow boundary",

abstract = "On 13 July 1986 a cold-air outflow from thunderstorms over Illinois and Missouri propagated through the MIST (Microburst and Severe Thunderstorm) network over northern Alabama. The study of this outflow is important since the gust front was solely responsible for the initiation of numerous convective cells. Previous studies have documented the initiation of convection due to colliding gust fronts. In addition, there was a pronounced mesoscale organization of the cells atop the outflow boundary. This was most likely due to a combination of Kelvin-Helmholtz (K-H) and internal gravity (IG) wave activity. In contrast to previous cases, the K-H wave crests were oriented nearly perpendicular to the gust front within the analysis area. -from Authors",

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year = "1992",

doi = "10.1175/1520-0493(1992)120<2169:TIAOOC>2.0.CO;2",

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N2 - On 13 July 1986 a cold-air outflow from thunderstorms over Illinois and Missouri propagated through the MIST (Microburst and Severe Thunderstorm) network over northern Alabama. The study of this outflow is important since the gust front was solely responsible for the initiation of numerous convective cells. Previous studies have documented the initiation of convection due to colliding gust fronts. In addition, there was a pronounced mesoscale organization of the cells atop the outflow boundary. This was most likely due to a combination of Kelvin-Helmholtz (K-H) and internal gravity (IG) wave activity. In contrast to previous cases, the K-H wave crests were oriented nearly perpendicular to the gust front within the analysis area. -from Authors

AB - On 13 July 1986 a cold-air outflow from thunderstorms over Illinois and Missouri propagated through the MIST (Microburst and Severe Thunderstorm) network over northern Alabama. The study of this outflow is important since the gust front was solely responsible for the initiation of numerous convective cells. Previous studies have documented the initiation of convection due to colliding gust fronts. In addition, there was a pronounced mesoscale organization of the cells atop the outflow boundary. This was most likely due to a combination of Kelvin-Helmholtz (K-H) and internal gravity (IG) wave activity. In contrast to previous cases, the K-H wave crests were oriented nearly perpendicular to the gust front within the analysis area. -from Authors

UR - https://www.scopus.com/pages/publications/0027009938

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VL - 120

SP - 2169

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JO - Monthly Weather Review

JF - Monthly Weather Review

IS - 10

ER -

The initiation and organization of convective cells atop a cold-air outflow boundary

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