Surface observations indicate that the propagating stratus feature had characteristics similar to those associated with CTWR events. A general increase in pressure, decrease in temperature and transition to coast parallel wind flow were observed throughout its propagation. The synoptic set-up for the CTWR was similar to that observed in previous CTWR studies including the inland extension of a ridge and the persistence in offshore flow which results in the extension of the Yukon and Alaska thermal trough.
The University of Wisconsin-Nonhydrostatic Modeling System (UW-NMS) was used to further explore the structure and dynamic characteristics of the wind reversal. Three nested grids of 30km, 6km and 2km horizontal resolution were used with a vertical resolution of 100m for the first 1500m. Model output indicated that throughout much of its propagation the wind reversal resembled a density current. Several other interesting features such as gravity waves and a topographically trapped low were also observed in the model run.