Articles | Volume 18, issue 2
https://doi.org/10.5194/nhess-18-419-2018
https://doi.org/10.5194/nhess-18-419-2018
Brief communication
 | 
06 Feb 2018
Brief communication |  | 06 Feb 2018

Brief Communication: Synoptic-scale differences between Sundowner and Santa Ana wind regimes in the Santa Ynez Mountains, California

Benjamin J. Hatchett, Craig M. Smith, Nicholas J. Nauslar, and Michael L. Kaplan

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Cited articles

Abatzoglou, J. T., Barbero, R., and Nauslar, N. J.: Diagnosing Santa Ana Winds in southern California with synoptic-scale analysis, Weather Forecast., 28, 704–710, https://doi.org/10.1175/WAF-D-13-00002.1, 2013. 
Balch, J. K., Bradley, B. A., Abatzoglou, J. T., Nagy, R. C., Fusco, E. J., and Mahood, A. L.: Human-started wildfires expand the fire niche across the United States, P. Natl. Acad. Sci. USA, 114, 2946–2951, https://doi.org/10.1073/pnas.1617394114, 2017. 
Blier, W.: The Sundowner winds of Santa Barbara, California, Weather Forecast., 13, 702–716, https://doi.org/10.1175/1520-0434(1998)013<0702:TSWOSB>2.0.CO;2, 1998. 
Cannon, F., Carvalho, L. M. V., Jones, C., Hall, T., Gomberg, D., Dumas, J., and Jackson, M.: WRF simulation of downslope wind events in coastal Santa Barbara county, Atmos. Res., 191, 57–73, https://doi.org/10.1016/j.atmosres.2017.03.010, 2017. 
Doubler, D. L., Winkler, J. A., Bian, X., Walters, C. K., and Zhong, S.: An NARR-derived climatology of southerly and northerly low-level jets over North America and coastal environs, J. Appl. Meteorol. Clim., 54, 1596–1619, https://doi.org/10.1175/JAMC-D-14-0311.1, 2015. 
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Short summary
Severe wind events in southern California create extreme fire hazards. Sundowner winds are local downslope winds in the Santa Ynez Mountains near Santa Barbara that often coincide with damaging fires. Here we produce a climatology of Sundowner winds and compare their seasonal occurrence and large-scale atmospheric patterns to the well-studied Santa Ana wind regime. We find that Sundowner winds are distinctly different from Santa Ana winds in terms of peak seasonality and synoptic structure.
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