John Horel

John Horel


Office: 483 INSCC
Phone: (801) 581-7091
Fax: (801) 585-3681
Citations: Google scholar

University of Utah
Department of Atmospheric Sciences
135 S 1460 E, Rm 819
Salt Lake City, Utah 84112-0110

John Horel


Ph.D. 1982, Atmospheric Sciences, University of Washington
B.S. 1977, Meteorology, San Jose State University

Research Interests

Overview of Research Activities

My research is centered on the observation and analysis of weather and climate processes in mountainous regions. My current research activities include further development of MesoWest and SynopticLabs (see,, which provide access to surface weather observations for operational, research, and educational applications. They also provide a foundation from which to conduct research to improve numerical models and data assimilation techniques over complex terrain and evaluate the cost effectiveness of surface observing networks. I also am involved in research and development related to fire weather applications, the Great Salt Lake, and air quality along the Wasatch Front and in the Uintah Basin.


American Meteorology Society Francis W. Reichelderfer Award “For development and leadership of the MesoWest observational network in support of operations, research, and education to improve understanding and forecasting of mountain meteorology. 2016

Fellow of the American Meteorological Society 2002
Outstanding Service Award, National Weather Service Western Region, "For outstanding service to the weather support group for the 2002 Olympic Winter Games" 2002
College of Mines and Earth Sciences Outstanding Teacher Award 1993-94

John Horel

Courses Taught in Past 3 Years

Atmos 3000: Professional Development in the Atmospheric Sciences
Atmos 5020: Environmental Programming
Atmos 5040, 6040: Environmental Statistics
Atmos 5050, 6050: Environmental Instrumentation

Text and Book Chapters

Steenburgh, W. J., K. Redmond, K. E. Kunkel, N. Doesken, R. Gillies, J. Horel, M. P. Hoerling, and T. H. Painter, 2012: The weather and climate of the Southwest United States. Assessment of Climate Change in the Southwest United States: A Technical Report Prepared for the U. S. National Climate Assessment. In press.

Horel, J., 2003: Terrain-forced mesoscale circulations. Handbook of Weather, Climate, and Water: Dynamics, Climate, Physical Meteorology, Weather Systems, and Measurements. Edited by T. Potter and B. Colman. Wiley and Sons. 562-573.

Horel, J. D., and J. E. Geisler, 1996: Global Environmental Change: An Atmospheric Perspective. 165 pp. John Wiley and Son.

Peer-Reviewed Publications During Past 5 Years

Leclair-Marzolf, L., J. D. Horel, J. S. Young, 2018: Retrospective and ongoing analyses of aerosol layers using laser ceilometers. Submitted to Journal of Atmospheric and Oceanic Technology.

Foster, C., E. Crosman, L. Holland, D. Mallia, B. Fasoli, J. Horel, J. Lin, 2018: Constraining methane emissions in Utah’s Uintah Basin with ground-based observations and a time-reversed Lagrangian transport model. Submitted to J. Geophys. Res. Atmos.

Crosman, E., J. Vazquez-Cuervo, M. Chin, 2017: Evaluation of the Multi-Scale Ultra-High Resolution (MUR) analysis of lake surface temperature. Remote Sensing. 9(7), 723. doi:10.3390/rs9070723

Blaylock, B., J. Horel, S. Liston, 2017: Cloud archiving and data mining of High Resolution Rapid Refresh Model Output. Computers and Geosciences, 109, 43-50.>

Jacques, A., J. D. Horel, E. T. Crosman, F. L. Vernon, 2017: Tracking Mesoscale Pressure Perturbations Using the USArray Transportable Array. Mon. Wea. Rev. 145, 3119-3142.

Crosman, E., A. Jacques, J. Horel, 2017: A Novel Approach for Monitoring Vertical Profiles of Boundary-Layer Pollutants: Utilizing Routine News Helicopter Flights. Atmospheric Pollution Research. 8, 828-835.

Foster, C., E. Crosman, J. Horel, 2017: Simulations of a Cold-Air Pool in Utah’s Salt Lake Valley: Sensitivity to Land Use and Snow Cover. Boundary Layer Meteorology. 164, 63-87."

Crosman, E., J. Horel, 2017: Large-eddy simulations of a Salt Lake Valley cold-air pool. Atmospheric Research. 193, 10–25. 10.1016/j.atmosres.2017.04.010

Blaylock, B., J. Horel, E. Crosman, 2017: Impact of Lake Breezes on Summer Ozone Concentrations in the Salt Lake Valley. J. Appl. Meteor. Clim.56, 353-370."

Crosman, E., and J. Horel, 2016: Winter lake breezes near the Great Salt Lake. Boundary Layer Meteorology, 1-26, doi:10.1007/s10546-015-0117-6.

Horel, J., E. Crosman, A. Jacques, B. Blaylock, S. Arens, A. Long, J. Sohl, R. Martin, 2016: Influence of the Great Salt Lake on summer air quality over nearby urban areas. Atmospheric Science Letters, 17, 480-486, doi:10.1002/asl.680.

Jacques, A., J. Horel, E. Crosman, F. Vernon, and J. Tytell, 2016: The Earthscope US Transportable Array 1 Hz Surface Pressure Dataset. Geoscience Data Journal, 3, 29-36, doi:10.1002/gdj3.37.

Lawson, J., and J. Horel, 2015: Ensemble forecast uncertainty of the 1 December 2011 Wasatch downslope windstorm. Wea. Forecasting, 30, 1749-1761, doi:10.1175/WAF-D-15-0034.1.

Jacques, A. A., J. D. Horel, E. T. Crosman, and F. L. Vernon, 2015: Central and Eastern United States Surface Pressure Variations Derived from the USArray Network. Monthly Weather Review, 143, 1472-1493, doi:10.1175/MWR-D-14-00274.1.

Neil P. Lareau and John D. Horel, 2015: Turbulent erosion of persistent cold-air pools. J. Atmos. Sci., 72, 1409–1427, doi:10.1175/JAS-D-14-0173.1.

Lawson, J., and J. Horel 2015: Analysis of the 1 December 2011 Wasatch downslope windstorm. Wea. Forecasting, 30, 115–135, doi:10.1175/WAF-D-13-00120.1.

Lareau, N., and J. Horel, 2015: Dynamically induced displacements of a persistent cold-air pool. Boundary Layer Meteorology, 154, 2, 291-316, doi:10.1007/s10546-014-9968-5.

Neemann, E., E. Crosman, J. Horel, L. Avey, 2015: Simulations of a cold-air pool associated with elevated wintertime ozone in the Uintah Basin, Utah. Atmos. Chem. Phys., 15, 135-151, doi:10.5194/acp-15-135-2015.

Lammers, M., and J. Horel, 2014: Verification of National Weather Service spot forecasts using surface observations. J. of Operational Meteor, 2, 246–264, doi:10.15191/nwajom.2014.0220.

Whiteman, C. D., S. W. Hoch, J. D. Horel, and A. Charland, 2014: Relationship between particulate air pollution and meteorological variables in Utah's Salt Lake Valley. Atmospheric Environment, 94, 742-753, doi:10.1016/j.atmosenv.2014.06.012.

Horel, J., R. Ziel, C. Galli, J. Pechmann, and X. Dong, 2014: An evaluation of fire danger and behavior indices in the Great Lakes region calculated from station and gridded weather information. International Journal of Wildland Fire, 23, 202-214, doi:10.1071/WF12186.

/div> Tyndall, D., and J. Horel, 2013: Impacts of mesonet observations on meteorological surface analyses. Wea. Forecasting, 28, 254-269, doi:10.1175/WAF-D-12-00027.1.

Lareau, N., E. Crosman, C. Whiteman, J. Horel, S. Hoch, W. Brown, and T. Horst, 2013: The Persistent Cold-Air Pool Study. Bull Amer. Meteor. Soc., 94, 51-63, doi:10.1175/BAMS-D-11-00255.1.

Crosman, E. and J. Horel, 2012: Idealized Large-Eddy Simulations of Sea and Lake Breezes: Sensitivity to Lake Diameter, Heat Flux and Stability. Boundary Layer Meteorology, 144, 309-328, doi:10.1007/s10546-012-9721-x.

Lareau, N. and J. Horel, 2012: The Climatology of Synoptic- Scale Ascent Over Western North America: A Perspective on Storm Tracks. Mon. Wea. Rev., 140, 1761-1778, doi:10.1175/MWR-D-11-00203.1.