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Observations of Squall Line and Environmental Changes During VORTEX2

This study examines changes in the density anomaly cap as a storm approaches, revealing weakening over time, but with an increase in surface parcel density. The impact of uncapping the planetary boundary layer on convection is discussed.

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Observations of Squall Line and Environmental Changes During VORTEX2

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  1. http://journals.ametsoc.org/doi/abs/10.1175/2010MWR3359.1 Bryan, George H., Matthew D. Parker, 2010: Observations of a Squall Line and Its Near Environment Using High-Frequency Rawinsonde Launches during VORTEX2. Mon. Wea. Rev., 138, 4076–4097. doi: 10.1175/2010MWR3359.1

  2. (negative of) density anomaly cap gets weaker with time as storm approaches time

  3. cap gets weaker with time as storm approaches time

  4. time but surface parcels are more dense too, so CIN of a surface parcel misses the story about uncapping of PBL leading to convection s3, s4 CIN of surface parcel

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