Climate Archives - CMOS BULLETIN SCMO

MOPITT at twenty-five: celebrating a quarter century of science

Written on July 8, 2025.

– By Paul Jeffery – MOPITT: A brief history Figure 1: Highlighted metrics from MOPITT publications. Figure courtesy of the Canadian Space Agency. National Aeronautics and Space...

Compound Climate Hazards are on the Rise: The Co-Occurrence of Wildfire Smoke and Extreme Heat Events in British Columbia

Written on July 8, 2025.

– By Stephanie Cleland – Figure 1. The number of days with a co-occurring wildfire smoke and extreme heat event between 2010-2022. The number of days are calculated for each community...

The possible role of icebergs in the origin of the North Atlantic Cold Blob

Written on June 27, 2025.

– By David Allan and Richard Allan – Many people with an interest in ocean science will have come across the Cold Blob or ‘warming hole’, a region between the main North Atlantic...

Documenting Environmental Change in Nunatsiavut through Inuit Knowledge: The Nunatsiavut Sea Ice Observer Program

Written on January 26, 2025.

– By Emma Harrison – “On this date in 1988, I crossed over Lake Melville on a snowmobile. I hope I’m totally wrong, but all indications are we’re heading into another late season.” ...

Synoptic-scale weather patterns associated with extreme precipitation regimes during the eastern North American winter

Written on November 11, 2024.

– By Yeechian Low – Introduction and Motivation Figure 1: a): Map of eastern North America, depicted by the brown shading in the black box. b): Total precipitation (shaded, in mm)...

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...

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...

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...

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...