Dr. John Hanesiak

468 Wallace
(204) 474-7049

Education & Background

2001 Ph.D. (Manitoba) - Arctic System Science
1994 M.Sc. (York) - Atmospheric Science
1991 Certificate of Meteorology (York)
1990 B.Sc. (Winnipeg) - Double Major Physics/Mathematics

Prior to joining the University of Manitoba in 2001, I was an operational meteorologist with Environment and Climate Change Canada (formerly Environment Canada, when I was there) at the Prairie and Arctic Storm Prediction Centre (PASPC).

My Research Program

My work deals with convection processes, severe/extreme weather and climate, storms, and surface-atmosphere interactions. I use field measurements and numerical modelling to better understand the processes and interactions within these areas.

Field measurements consist of ground-based / satellite-based remote sensing along with rawinsondes for atmospheric profiling and examining cloud characteristics as well as fixed and mobile meteorological basic state variable measurements. Specialized equipment include: (1) profiling microwave radiometers and Doppler wind Lidars, (2) Atmospheric Mobile Measurement Observing Systems (AMMOS), (3) laser precipitation measurements, and (4) portable automatic weather stations.

A variety of numerical models are used in-house and in collaboration with other researchers including RDPS/HRDPS (Canadian models) and WRF (a U.S. mesoscale atmospheric model).
Students get the benefit of working with World-class research equipment and collaborate with researchers within Canada and abroad to expand their experience and training.
A combination of field measurements, remote sensing and numerical modelling are used to:
(1) understand the coupled nature of weather and climate processes; 
(2) ensure the models simulate the environment properly (model validation); 
(3) improve the physical processes within the models (physics and internal parameterizations). 

Research Projects

University of Manitoba Weather Central Weather Information

I teach/co-teach the following

GEOG 2300 Atmospheric Thermodynamics, Clouds and Precipitation
GEOG 3310 Atmospheric Dynamics, Storms and Radar
GEOG 4780 / GEOG 7780 Storms-Mesoscale Meteorology
GEOG 4300 / GEOG 7420 Synoptic Meteorology and Weather Analysis (every 2nd year, alternates with 4330
GEOG 4330 / GEOG 7332 Concepts in Atmospheric Modelling (every 2nd year, alternates with 4300
GEOG 4670 (grad course also available) Selected Issues: Severe Thunderstorms—storm chasing & field techniques (every 2nd year, summer)

The last course is Canada’s only for-credit storm chasing course - it is offered to UofM (and other university qualified) students and the general public - ask me about it if interested!

Links to our B.Sc.M.Scand Ph.D. programs. If you are keen on a career in meteorology, check this out

Our meteorology/atmospheric science students can obtain co-op work terms with the local weather office and other government/private sector agencies as well as researchers & faculty members in our department.


Refereed Publications (Journals)

Refereed Journal Articles * denotes my students/PDFs as authors 

S.B. Trier, * S.D. Kehler and J. Hanesiak, 2020: Observations and Simulation of Elevated Nocturnal Convection Initiation during 24 June 2015 PECAN, Mon. Wea. Rev., 148, 613-635, DOI: 10.1175/MWR-D-19-0218.1

Weckwerth, T., J. Hanesiak, J.W. Wilson, S.B. Trier, S.K. Degelia, W.A. Gallus, Jr., R.D. Roberts and X. Wang, 2019: Nocturnal Convection Initiation during P ECAN 2015, Bull. Am. Meteorol. Soc., 100(11), 2223-2239, DOI:10.1175/BAMS-D-18-0299.1

Stewart, R.E, K.K. Szeto, B.R. Bonsal, J.M. Hanesiak, B. Kochtubajda, Y. Li, J.M. Thériault, C.M. DeBeer, B.Y. Tam, Z. Li, Z. Liu, * J.A. Bruneau, P. Duplessis, S. Marinier and D. Matte, 2019: Summary and synthesis of Changing Cold Regions Network (CCRN) research in the interior of western Canada – Part 1: Projected climate and meteorology, 23, 1–19, https://doi.org/10.5194/hess-23-1-2019

Brimelow, J.C., W.R. Burrows and J.M. Hanesiak, 2017: The changing hail threat over North America in response to anthropogenic climate change. Nat. Clim. Change, DOI: 10.1038/NCLIMATE3321

* Curry, M., J. Hanesiak, * S. Kehler, D. Sills and N. Taylor, 2017: Ground-based Observations of the Thermodynamic and dynamic properties of lake-breezes in southern Manitoba, Canada. Boundary Layer Meteorol., 163:143–159, 10.1007/s10546-016-0214-1.

Geerts, B. et al., 2017: The 2015 Plains Elevated Convection At Night (PECAN) field project, Bull. Am. Meteorol. Soc., DOI: http://dx.doi.org/10.1175/BAMS-D-15-00257.1.

* Kehler, S., J. Hanesiak, * M. Curry, D. Sills and N. Taylor, 2016: High Resolution Deterministic Prediction System (HRDPS) Simulations of Manitoba Lake Breezes, Atmos.-Ocean, 54, 93-107, DOI: 10.1080/07055900.2015.1137857.

* Curry, M., J. Hanesiak and D. Sills, 2015: A radar-based investigation of lake breezes in southern Manitoba, Canada, Atmos-Ocean 53, 237-250, doi:10.1080/07055900.2014.1001317.

* Brimelow, J.C., K. Szeto, B. Bonsal, J. Hanesiak, B. Kochtubajda, F. Evans and R. Stewart, 2014: Hydroclimatic aspects of the 2011 Assiniboine River Basin Flood, J. Hydrometeorol.,16, 1250-1272.

* Brimelow, J.C., R.E. Stewart, J.M. Hanesiak, B. Kochtubajda, K. Szeto and B. Bonsal, 2014: Characterization and assessment of the devastating natural hazards across the Canadian Prairie Provinces from 2009 to 2011, Nat. Hazards, DOI 10.1007/s11069-014-1107-6.

* Fargey, S., W. Henson, J.M. Hanesiak and R. Goodson, 2014: Characterization of an unexpected snowfall event in Iqaluit, Nunavut and surrounding area during the Storm Studies in the Arctic field project, JGR-Atmospheres, 119(9), 5492-5511.

* Fargey, S., J. Hanesiak, R. Stewart, W. Strapp and M. Wolde, 2014: Aircraft observations of orographic cloud and precipitation features over southern Baffin Island, Nunavut, Canada, Atmos.-Ocean, 52, 54-76.

Hanesiak, J., *J.C. Brimelow, A. Zadra, R. Goodson and G. Liu, 2013: Structure and predictive skill of strong northeasterly wind events using a limited area numerical weather prediction model at Iqaluit, Canada, Tellus A, 65, 19782, http://dx.doi.org/10.3402/tellusa.v65i0.19782.

* Brimelow, J., J. Hanesiak, B. Burrows, 2011: Impacts of land-atmosphere feedbacks on deep, moist convection on the Canadian Prairies, Earth Interactions, 13 (No. 31), 1-29, DOI: 10.1175/2011EI407.1

Hanesiak and many co-authors, 2011: Characterization and summary of the 1999-2005 drought, DRI Special Issue, Atmos.-Ocean, 49, 421-452.

* Brimelow, J., J. Hanesiak, B. Burrows, 2011: On the surface-convection feedback during drought periods on the Canadian Prairies, Earth Interactions, 15, 1-26, doi: 10.1175/2010E1381.1.

Taylor, N.M., D.M.L. Sills, J. Hanesiak, J.A. Milbrandt, C.D. Smith, G. Strong, S. Skone, P.J. McCarthy and J.C. Brimelow, 2011: The Understanding Severe Thunderstorms and Alberta Boundary Layers Experiment (UNSTABLE) 2008: Overview and Preliminary Results, Bull. Am. Meteorol. Soc., 92, 739-763.

Hanesiak, J., M. Melsness and R.L. Raddatz, 2010: Observed and Modeled Growing Season Diurnal Precipitable Water Vapour in South-Central Canada, J. Appl. Meteorol. and Clim., 49, 2301-2314.

Hanesiak, J.M., R. Stewart, P. Taylor, G.W.K. Moore, D.G. Barber, G. McBean, W. Strapp, M. Wolde, R. Goodson, E. Hudson, D. Hudak, J. Scott, G. Liu, * J. Gilligan, S. Biswas, * D. Desjardins, * R. Dyck, * S. Fargey, R. Field, G. Gascon, M. Gordon, H. Greene, C. Hay, W. Henson, K. Hochheim, A. Laplante, * R. Martin, M. Albarran-Melzer, S. Zhang, 2010: Storm Studies in the Arctic (STAR), Bull. Am. Meteorol. Soc., 91, 47-68.

* Deacu, D., A. Zadra and J. Hanesiak, 2010: Simulating Wind Channeling over Frobisher Bay and its Interaction with DownslopeWinds during the 7-8 November 2006 Wind Event, Atmos-Ocean., 48, 101-121.

Gordon, M., S. Biswas, P.A. Taylor, J. Hanesiak, M. Melzer and * S. Fargey, 2010: Measurements of Drifting and Blowing Snow at Iqaluit, Nunavut, Canada during the STAR Project, Atmos.-Ocean., 48, 81-100.

* Brimelow, J.C., J.M. Hanesiak, R.L. Raddatz and M. Hayashi, 2010: Validation of ET estimates from the Canadian prairie agrometeorological model for contrasting vegetation types and growing seasons. Can. J. Water Res., 35(2), 209–230.

* Brimelow, J.C., J.M. Hanesiak, and R.L. Raddatz, 2010:  Validation of the Canadian prairie agrometeorological model and an examination of its sensitivity to soil hydraulic parameters using ensembles. Journal of Agricultural and Forest Meteorology, 150, 100-114, doi:10.1016/j.agrformet.2009.09.006.

Hanesiak, J., * A. Tat and R.L. Raddatz, 2009: Initial Soil Moisture as a Predictor of Subsequent Summer Severe Weather in the Cropped Grassland of the Canadian Prairie Provinces, Intl J. Climatology, 29(6), 899-909 DOI: 10.1002/joc.1743

Woodbury, A.D., J.M. Hanesiak, A.H. Bhuiyan and W. Akinremi, 2009: Observations of northern latitude ground-surface and surface-air temperatures, Geophysical Research Letters, 36, L07703, doi:10.1029/2009GL037400

Raddatz, R.L. and J.M. Hanesiak, 2008: Significant Summer Rainfall in the Canadian Prairie Provinces: Modes and Mechanisms 2000 – 2004, Intl J. Climatology, 28(12), 1607-1613, DOI: 10.1002/joc.1670

* Huang, Q., J.M. Hanesiak, S. Savelyev, P. Taylor and T. Papakyriakou, 2008: Visibilities during blowing snow events over Arctic sea ice, Weather and Forecasting, 23, 741–751.

* Jin, X., J.M. Hanesiak and D.G. Barber, 2007: Time Series of Daily Averaged Cloud Fractions over Landfast First-Year Sea Ice from Multiple Data Sources, J. Appl. Meteorol. and Climat., 46, 1818-1827.

* Jin, X., J.M. Hanesiak and D.G. Barber, 2006: Detecting cloud vertical structures from radiosondes and MODIS over Arctic first-year sea ice, Atmospheric Research, 83, 64-76.

Savelyev S., M. Gordon, J. Hanesiak, T. Papakyriakou and P.A. Taylor, 2006: Blowing Snow Studies in CASES (Canadian Arctic Shelf Exchange Study) 03-04, Hydrological Processes, 20, 817 - 827.

Hanesiak, J.M. and X. Wang, 2005: Adverse Weather Trends in the Canadian Arctic, J. Climate, 18, 3140-3156

Baggaley, D.G. and J.M. Hanesiak, 2005: An empirical blowing snow forecast technique for the Canadian Arctic and Prairie Provinces, Weather & Forecasting, 20, 51-62.

Hanesiak, J.M., R.L. Raddatz and * S. Lobban, 2004: Local initiation of deep convection on the Canadian Prairie Provinces. Boundary Layer Meteorol., 110, 455–470

Barber, D.G. and J.M. Hanesiak, 2004: Meteorological forcing of sea ice concentrations in the Southern Beaufort Sea over the period 1978-2001. J. Geophys. Res., 109, C06014, pp 16

Hunter, F., Donald, D., F. Hunter, B. Johnson, W Hyde, J. Hanesiak, M. Kellerhals, R. Hopkinson and B. Oegema, 2002: The Vanguard torrential storm (Meteorology and Hydrology). Can. Water Resour. J., 27, No. 2, 213-227.

Hanesiak, J.M., J.J. Yackel and D.G. Barber, 2001: Effect of melt ponds on first-year sea ice ablation - Integration of RADARSAT-1 and thermodynamic modeling, Can. J. Rem. Sens., 27, No. 5, 433-442.

Hanesiak, J.M., D.G. Barber, R. A. De Abreu and J. J. Yackel, 2001: Local and regional observations of arctic first-year sea ice melt pond albedo. J. Geophys Res., 106(C1), 1005-1016.

Hanesiak, J.M., D.G. Barber, T.N. Papakyriakou and P.J. Minnett, 2001: Parameterization schemes of incident radiation in the North Water. Atmos.-Ocean, 39, No. 3, 223-238.

Barber, D.G., J. J. Yackel and J.M. Hanesiak, 2001: Sea ice, Radarsat-1 and arctic climate processes, Can. J. Rem. Sens., 27, 51-61.

Barber, D.G., J.M. Hanesiak, W. Chan and J. Piwowar, 2001: Sea ice and meteorological conditions in northern Baffin Bay and the North Water Polynya between 1979 and 1996, Atmos.-Ocean, 343-359.

Yackel, J.J., D.G. Barber and J.M. Hanesiak, 2000: Melt ponds on sea ice in the Canadian Archipelago: 1. Variability in morphological and radiative properites, J. Geophys. Res., 105(C9), 22049-22060.

Hanesiak, J.M., D.G. Barber and G.M. Flato, 1999: The role of diurnal processes in the seasonal evolution of sea ice and its snow cover, J. Geophys. Res., 104(C6), 13593-13604.

Szeto, K.K., R.E. Stewart and J.M. Hanesiak, 1997: High-laitude cold season frontal cloud systems and their precipitation efficiency. Tellus, 49A, 439-454.

Hanesiak, J. M., R. E. Stewart, K. K. Szeto, D. R. Hudak and H. Leighton, 1996: The Structure, Water Budget and Radiational Features of a High Latitude Warm Front. J. Atmos. Sci., 54, 1553-1573.

Hanesiak, J. M. and R. E. Stewart, 1995: Mesoscale and Microscale Structure of a Severe Ice Pellet Storm. Mon. Wea. Rev., 123, 3144-3162.

Raddatz, R. L. and J. M. Hanesiak, 1991: Climatology of Tornado Days 1960-1989 for Manitoba and Saskatchewan. Climat. Bull., 25, 47-59.