Environment and Geography
468 Wallace
125 Dysart Road
Winnipeg, Manitoba
R3T 2N2
ORCID: 0000-0001-5839-2295

Latest Articles:

UM Weather Observing History


Northern Tornadoes Project

Northern Hail Project (NHP)


Northern Tornadoes Project (NTP) - Publications and Related Articles


Becoming a Meteorologist with ECCC / More Info

Severe Weather Safety for :

Schools/Educators/Child Care Providers

General Public in Canada


Academic Background

Ph.D. University of Manitoba
M.Sc. York University (Atmospheric Science)
Certificate of Meteorology York University 
B.Sc. University of Winnipeg (Physics and Mathematics)


GEOG 2300 Atmospheric Thermodynamics, Clouds and Precipitation
GEOG 3310 Atmospheric Dynamics, Storms and Radar
GEOG 4780 / GEOG 7780 Storms-Mesoscale Meteorology
GEOG 4670 (grad course also available) Selected Issues: Severe Thunderstorms—storm chasing & field techniques (every 2nd year, summer)


Research Interests

Storms, extreme weather, mesoscale processes, surface-atmosphere interactions and how climate change may affect extreme weather in the future. Research mainly relates to warm season processes, including convection initiation, thunderstorms and associated severe weather, as well as surface contributions via evapotranspiration and mesoscale boundaries.

Current projects include: Northern Tornadoes Project (NTP) and Northern Hail Project (NHP)

Current and Recent Graduate Students

Click the ORCID number to visit that student's ORCID page

Ayitah, Eric MSc  
Macadam, Clinton MSc  
Kunkel, Joanne PhD  


Recent and Significant Publications

Hanesiak, J.M., M. Taszarek, D. Walker, C-C. Wang and D. Betancourt, 2024: Strong Tornado Environments In Canada Using ERA5-Derived Convective Parameters, JGR-Atmospheres, 129(8), 1-20,

Stewart, R.E., Z. Liu, D. Painchaud-Niemi, J. Hanesiak, and J. Theriault, 2023: Adhering Solid Precipitation in the Current and Pseudo-Global Warming Future Climate over the Canadian Provinces of Manitoba and Saskatchewan, Atmosphere, 14(396), 1-22,

Kunkel, J., J. Hanesiak and D. Sills 2023: The Hunt for Missing Tornadoes: Using Satellite Imagery to Detect and Document Historical Tornado Damage in Canadian Forests. J. Applied Meteorol. and Clim., 62:2, 139-154,

Hanesiak, J., R.E. Stewart, D. Painchaud-Niemi, S. Milrad, G. Liu, M. Vieira, J. Theriault, M. Cholette and K. Ziolkowski, 2022: The Severe Multi-Day October 2019 Snow Storm Over Southern Manitoba, Canada, Atmos.-Ocean, 60, 65-87. 

Loeb, N., A. Crawford, J.C. Stroeve, J. Hanesiak, 2022: Extreme Precipitation in the Eastern Canadian Arctic and Greenland: An Evaluation of Atmospheric Reanalyses. Frontiers in Environ. Sci., 10, DOI: 10.3389/fenvs.2022.866929. 

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 PECAN 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, Hydrol. Earth Sys. Sci., 23, 1–19,