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What is Canwarn?

CANWARN is a volunteer organization of amateur radio operators who report severe weather when they see it to Environment Canada. The spotters confirm on the ground what satellites & radars see in the atmosphere. When Environment Canada’s weather centers issue severe weather watches or warnings, they alert the CANWARN volunteers at the organization’s regional stations in the affected areas. The volunteers contact other CANWARN members using amateur radio, tell them to observe for warning or watches that have been issued, and ask them to report signs of approaching severe weather. These include lightning, hail, flooding, wind events cumulonimbus clouds, hail, flooding, tornadoes, funnel clouds,  winter storms, etc. CANWARN is the Canadian equivalent to the American SKYWARN program.

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