Weatheradio is a network of radio transmitters stretching from the Gulf of Mexico into Canada’s Arctic and from Newfoundland to Vancouver Island. These transmitters provide ... See more continuous broadcasts of weather information and instant updates when weather threatens. Weatheradio Canada is operated by Environment Canada's Meteorological Service and broadcasts weather and environmental information 24 hours a day in both official languages on 7 dedicated frequencies within the VHF public service band. This permits the transmission of a tone and Specific Area Message Encoding (SAME) codes ahead of a warning message that will activate the Weatheradio receiver and alert you to an incoming important message. Over 90 percent of Canadians can access a Weatheradio signal, and recent technological advances make it possible for listeners to program Weatheradio receivers to deliver only certain types of warnings for their specific locations.