David Sills

Director, Northern Tornadoes Project @ CSSL, Western University

Cars are partially submerged in flood waters in the Don Valley following heavy rain in Toronto on July 16, 2024. THE CANADIAN PRESS/Arlyn McAdorey

August 7, 2025

It’s challenging to predict extreme thunderstorms — improving this will help reduce their deadly and costly impacts

David Sills, Western University and Gregory Kopp, Western University

Current models for weather forecasting tend to ignore outlier data; learning how to incorporate these can help reduce risk and increase community resiliency.

Severe thunderstorms occur in Canada every year, bringing with them large hail, damaging downburst winds, intense rainfall and tornadoes. (Shutterstock)

August 23, 2022

Canada is witnessing more thunderstorm impacts than ever before

Gregory Kopp, Western University; David Sills, Western University, and Julian Brimelow, Western University

Are severe and extreme weather events on the rise? And does this have anything to do with manmade climate change? The simple answer is: it’s complicated.

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Location: London, Ontario, Canada
Website
BlueSky: @davesills.ca
LinkedIn: david-sills-a780ba218
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Joined August 5, 2022