Journal ArticleDOI
Possible Triggering Mechanisms for Severe Storms in SESAME-AVE IV (9–10 May 1979)
TLDR
The SESAME-AVE IV (9-10 May 1979) raw-insonde data were analyzed to uncover possible triggering mechanisms for severe storms that developed over western Oklahoma and Texas as discussed by the authors.Abstract:
The SESAME-AVE IV (9–10 May 1979) rawinsonde data were analyzed to uncover possible triggering mechanisms for severe storms that developed over western Oklahoma and Texas. The high frequency of observations (at 3 h intervals) and high vertical resolution of reported data (at 25 mb intervals) at all stations permitted investigation of the diurnal variation of the planetary boundary layer on the synoptic scale. Thunderstorms developed first just ahead of a stationary front over the Texas panhandle on the afternoon of 9 May. This area was characterized by the absence of a strong inversion (or “lid”) that represented an interface between very warm and dry air aloft, and warm moist tropical air below. Apparently, mesoscale low-level ascending motion associated with frontal lifting and/or the inland sea breeze effect led to the removal of the lid. Another noteworthy feature in this storm event was the strong vertical wind shear at low and middle levels over the storm area. When combined with the development of ...read more
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Atmospheric Controls on Soil Moisture-Boundary Layer Interactions. Part II: Feedbacks within the Continental United States
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Observations of the Finescale Structure of a Dryline during VORTEX 95
TL;DR: The three-dimensional finescale structure of a dryline observed over the Texas panhandle during the Verification of the Origins in Tornadoes Experiment (VORTEX) on 6 May 1995 is presented in this article.