CANWARN
Canadian amateur radio severe weather spotting network run by Environment Canada.
CANWARN, short for CANadian Weather Amateur Radio Network, is a severe weather spotting and reporting program operated by Environment Canada’s Meteorological Services of Canada. Members carry out ground truthing: they verify and supplement data from satellites and radar, and relay details those technologies cannot capture.
The program was first conceived in 1986 by members of the Windsor Amateur Radio Club in Windsor, Ontario. Randy Mawson VE3TRW, Paul Robertson VE3HFQ, Jerry Beneteau VE3EXT, and Bill Leal VE3ES set the original framework and procedures. The first training session took place that winter at the Windsor Airport, then home to the Windsor Weather Office of Environment Canada. In early April 1987, as Paul VE3HFQ and Bill VE3ES were putting the final touches on the station (VE3YQG) at the weather office, the first CANWARN net was called. A report of a tornado in southeast Michigan heading toward Essex County was relayed to Environment Canada’s severe weather desk in Toronto.
Later that year, following the Edmonton tornado and at the request of the Hage Report, CANWARN expanded beyond its initial Windsor-based program. Organized storm spotting had existed in Canada before, but operated independently of Environment Canada and never achieved the same level of success. CANWARN initially operated mainly in southern Ontario and central Alberta, and by the early 1990s it had grown to cover the entire country.
The United States launched a national storm spotting program in the 1950s, after having only local efforts. In the 1970s, it expanded its spotting and created the Skywarn program, which partly inspired CANWARN. In the 2000s, Europe began organized spotting through Skywarn Europe, made up of autonomous branches in roughly a dozen countries.
- Founded
- 1986
- First training session
- Winter 1986/1987
- First net
- Early April 1987
- Founders
- Randy Mawson VE3TRW, Paul Robertson VE3HFQ, Jerry Beneteau VE3EXT, Bill Leal VE3ES
- Initial location
- Windsor, Ontario
- National coverage achieved
- Early 1990s
Lore & Background
CANWARN was first theorized by members of the Windsor Amateur Radio Club in Windsor, Ontario in 1986. Randy Mawson VE3TRW, Paul Robertson VE3HFQ, Jerry Beneteau VE3EXT, and Bill Leal VE3ES established the original parameters and processes, with the first training session held at the Windsor Airport during the winter of 1986/1987. The station VE3YQG was located at the Windsor Weather Office of Environment Canada. In early April 1987, Paul VE3HFQ and Bill VE3ES were putting the final touches on the station when the very first CANWARN net was called to order. A report of a tornado in southeast Michigan on a path towards Essex County was relayed to Environment Canada's severe weather desk in Toronto.
Later that year, after the Edmonton tornado and at the request of the Hage Report, CANWARN expanded beyond the initial program run out of the Windsor Weather Office. Organized storm spotting in Canada had existed prior but operated independently of Environment Canada and never fully achieved the success that CANWARN did. Initially based in southern Ontario and central Alberta, it eventually grew to encompass the entire country by the early 1990s.
Reader's Guide
CANWARN's significance lies in its formal integration of amateur radio operators into the national severe weather warning system of Environment Canada. By providing ground truthing, members confirm and supplement satellite and radar observations, offering information not detectable by remote sensing. The program's success led to its expansion from a local Windsor initiative to a nationwide network by the early 1990s, following the Edmonton tornado and the Hage Report. This contrasts with earlier independent storm spotting efforts in Canada that did not achieve the same level of integration or effectiveness. CANWARN was partly inspired by the United States' Skywarn program, which began national storm spotting in the 1950s and increased efforts in the 1970s. In the 2000s, Europe also began organized spotting under Skywarn Europe, with autonomous branches in about a dozen countries. CANWARN's legacy is as a model for coordinated amateur radio weather observation, directly linked to a government meteorological service.
Did You Know?
- CANWARN stands for CANadian Weather Amateur Radio Network.
- The first CANWARN net was called to order in early April 1987 from the Windsor Weather Office.
- CANWARN expanded nationwide after the Edmonton tornado and the Hage Report.
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