Weatheradio Canada

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Weatheradio Canada
Environment Canada Logo.svg
Broadcast area Canada
Frequency variable
Format Weatheradio
Owner Meteorological Service of Canada
Website WeatherRadio Home Page

Weatheradio Canada, in French Radiométéo Canada, is a Canadian radio network that broadcasts weather information. Owned and operated by Environment Canada's Meteorological Service of Canada division, the network transmits in both official languages (English and French) from 230 sites across Canada.

In most locations, the service broadcasts on a special VHF frequency audible on special Weatheradio receivers or any FM radio able to receive 10 kHz bandwidth signals centred on the assigned frequencies, although in some locations — primarily national and provincial parks and remote communities with little or no local media service — a transmitter operated by the Canadian Broadcasting Corporation transmits the service on a conventional AM or FM frequency.

As of August 2007, most of these AM and FM transmitters are unlicensed by the CRTC under a special license exemption granted to low-power non-commercial broadcasters.[1] The service does not, however, have transmitters serving every populated region of the country.[2]

The frequencies used for Weatheradio are the same frequencies used for its American counterpart, NOAA Weather Radio All Hazards, and weather radios designed for use in one country are compatible for use in the other. Since 2007, the service has been using Specific Area Message Encoding (SAME) technology.

Weather information is broadcast using a synthesized voice. The technology employed to produce the voice is the StarCaster text-to-speech system, which uses concatenative synthesis.

Weatheradio has indicated that in the future it also plans to add other emergency information, such as natural disasters, technological accidents, AMBER alerts and terrorist attacks, to its broadcasts.


For the most part the technology and VHF-FM band plan are the same. Canada has not made any innovations to the transmission standard, as the technology was designed for American use and as such has evolved into having many features, although the technology is available for Canada to implement at their discretion.


Weatheradio Canada signals are transmitted using FM (10 kHz bandwidth), with band spacing of 25 kHz. The service uses these frequencies:[3]

  • 162.400 MHz
  • 162.425 MHz
  • 162.450 MHz
  • 162.475 MHz
  • 162.500 MHz
  • 162.525 MHz
  • 162.550 MHz

Emergency alert is sent using Specific Area Message Encoding data bursts, for floods and other public emergencies, and a 1050 Hz audio tone for severe thunderstorm and tornado warnings.

See also[edit]


  1. ^ Broadcasting Decision CRTC 2007-280, August 7, 2007.
  2. ^ For instance, there is no Weatheradio Canada signal receivable in Princeton in British Columbia.
  3. ^

External links[edit]