News & Events Archives - CMOS BULLETIN SCMO

Particulate Matter: A Milton Case Study

Written on October 6, 2024.

Introduction Particulate matter (PM), including PM1, PM2.5, and PM10, represents a risk to human health at elevated levels. Xu et al. suggest that PM concentrations can vary greatly due to meteorological...

The Billion Dollar Calgary Hailstorm of 13 June 2020, Part III: Hail Size and Weather Modification Aspects

Written on September 18, 2024.

– By Paul Joe – Abstract On 13 June 2020, a hailstorm caused $1.2B of damage in a 10-15 km2 area in northeast Calgary within a 20 minute period. A radar-based overview of the storm’s initiation,...

The Billion Dollar Calgary Hailstorm of 13 June 2020, Part II: Explosive Growth, Merging and the Meso-Front

Written on September 18, 2024.

– By Paul Joe, Ronald E. Stewart, and Sudesh Boodoo – Abstract An overview of the Calgary billion dollar hailstorm of 13 June 2020 was previously presented. This extreme storm was attributed...

The Billion Dollar Calgary Hailstorm of 13 June 2020, Part I: Overview

Written on September 18, 2024.

– By Paul Joe, Ronald E. Stewart, and Sudesh Boodoo – Abstract A radar analysis of the Calgary hailstorm of 13 June 2020 is presented. Insured damages in the City of Calgary were estimated...

CMOS Congress Outstanding Presentations

Written on August 26, 2024.

On June 3-6, 2024, the 58th annual Canadian Meteorological and Oceanographic Society Congress was held virtually with help from the Winnipeg Centre and the BC Interior-Yukon Centre. The theme of the...

The Great Smoke Pall of 1950 and Other “Dark Days” that have Blanketed Eastern North America

Written on September 24, 2023.

– By Kevin Hamilton – The extraordinary 2023 Canadian wildfire season has been in the public eye for much of this spring, but during June 7-8 the event entered a new phase of global media...

CONCEPTS Science Workshop Report

Written on September 6, 2023.

– By Smith, G.C., P. Pernica, Y. Lu, N. Soontiens, R. Horwitz, F. Dupont, M. Dunphy, Y. LeClainche, I. Gaboury, F. Davidson, C. Bourgault-Brunelle, A. Leroux, A. Holdsworth, D. Lavoie, R. Hourston,...

The Evolution of Canada’s Weather Enterprise: 150 years Anniversary Symposium

Written on August 3, 2023.

– By Stella Melo, Mireille Chaput-Dyer and Paul Joe – Abstract The virtual CMOS-MSC Symposium on 150 Years of Weather Services in Canada, took place during the CMOS Congress in 2021. It...

The unprecedented Pacific Northwest heatwave of June 2021

Written on May 25, 2023.

– By Cuiyi Fei, Rachel H. White, Chris Rodell – The extreme heatwave that occurred at the end of June 2021 across the Pacific Northwest region of North America was so unprecedented and...