Weatheradio Canada (French: Radiométéo Canada) is a nationwide network of VHF FM radio stations broadcasting weather forecasts, current conditions, marine forecasts, and weather alerts 24 hours a day in both official languages. From its inception in 1977, the network has expanded to 180 sites across the country, transmitting continuous weather information on 7 dedicated frequencies on the VHF public service band, and 7 standard AM/FM channels as noted below. 92% of Canadians are with in range of a weatheradio signal, however those who live in areas that the signal can not reach, some low powered radio stations broadcast weatheradio via conventional radio where a special receiver is not required. Weatheradio Canada like their telephone service, uses the Starcaster Text to Speech (TTS), which has been used for many years and is owned by StarCaster TTS.
The Meteorological Service of Canada (MSC) operates the Weatheradio Canada network. The majority of these stations broadcast on the VHF band to permit the transmission of a 1050 Hz tone that will trigger a Weatheradio receiver's internal alert system that is capable of waking up to this signal. This warning tone is broadcast ahead of a warning message to activate Weatheradios upon receipt, but is intended to be used to the severest of weather alerts. New Weatheradio receivers now use SAME codes instead as the trigger to activate the alarm features, Environment and Climate Change Canada has converted the network to utilize SAME codes. By broadcasting these codes, those users who purchase a new Weatheradio will not only be able to receive the audio signal, but will receive emergency messages and the full functionality of the warning device unit, such as the ability to pre-select which warnings to receive, however some warnings can not be disabled such as a Tornado Warning. For users who have older Weatheradio models, these units will continue to receive the full range of weather watches, advisories and warnings as in the past. However, they will not be able to take advantage of the enhanced options offered by a Weatheradio with SAME decoding capability.
In 1976, Meteorological Service of Canada Weatheradio's service was launched and expanded to 30 locations in roughly 10 years. In the early-1990s, increased government investment permitted major expansion of the network to the present size of 179 sites.
In 1992, the network added the functionality of transmitting a data burst that was embedded in the audio signal. This service was called Weathercopy and focused on clients who required hard copies of weather warnings or desired hard copy custom weather products. In addition, the Weathercopy receivers were addressable and could be targeted to receive special weather forecast products and graphics. Dissemination technology evolved and similar, faster, delivery solutions were available to key clients thus leading to the Weathercopy service being decommissioned in 2003. Currently, there are six major weather offices in Canada that share the responsibility to ensure that all weather forecasts and warnings are broadcasting at each Weatheradio location. The Weatheradio network has 185 transmitter sites and approximately 92 percent of Canadians can access the Weatheradio signal.
In January 2004, the Minister of Environment Canada announced the Weatheradio network would add SAME functionality. The entire network conversion is expected to take one year but selected sites will begin broadcasting the codes by Fall 2004. Environment Canada is partnering with Industry Canada to develop the protocol for the delivery of non-weather alert messaging, which will be established by 2005.
In 2017, The Meteorological Service of Canada started testing new voices to be used in the near future. This test was performed in select cities.
Like their counterpart the NOAA Weather Radio, Meteorological Service of Canada conducts a weekly test of the network every Wednesday near noon local time, which is known as a Required Weekly Test. This test ensures the network is able to send data to a transmitter, the transmitter can receive and re-broadcast that signal to radios in range. Also, this allows users to confirm their radios are in working order, and failure to activate to the test procedure may mean a radio replacement or servicing may be required, this of course depending the actual test was successful.
There is a secondary test on the first Wednesday of each month called the Required Monthly Test, which follows the Required Weekly Test noted above. Typically, the RMT will begin with the 1050Hz tone to activate older radios that can not activate for the SAME feature first, or radios that do activate for both the 1050hz tone and SAME, followed by SAME to activate radios that do activate for SAME.
Generally, the each test is SAME timed for one hour. Those with the special SAME radio, the color coded light will remain illuminated for one hour following either test noted above. It's important to note that these tests are separate from Alert Ready and, unlike NOAA Weather Radio, Weatheradio Canada does not broadcast their tests via TV and radio except for the conventional AM/FM noted in this article.
Most Weatheradio transmitters broadcast on the VHF public service band using one of 7 frequencies: 162.400, 162.425, 162.450, 162.475, 162.500, 162.525, or 162.550 MHz. 
The average range for reception of the broadcast signal is about 60 km from the transmitter site but can vary according to terrain. At a few locations, low power broadcasts without the alert tone or SAME codes are transmitted on the regular FM or AM band and can be heard using an ordinary radio. 
In Canada, there are a total of 180 Weatheradio transmitters-- 168 on VHF frequencies and 12 on regular AM or FM bands. If severe weather threatens, public safety experts agree that seconds count to save lives. With an alert-capable Weatheradio, the device will automatically activate a visual or audible alarm for toned weather warnings, reducing the risk of the warning being missed. 
A newer model of Weatheradio receiver with a decoder for Specific Area Message Encoding (SAME) messages will screen out warnings that don't apply to the local area, alerting only for pre-programmed events. 
Weatheradio is no longer just about weather - it is evolving into an "all-hazards" alert system. Warnings for non-weather related natural disasters, technological accidents, AMBER alerts and terrorist attacks will eventually be added to the broadcasts. SAME technology will make this all possible. 
Weatheradio is not just for emergencies either -- it provides continuous access to current conditions and weather forecasts as well as any severe weather watches and warnings that may be in effect. 
Tests are conducted monthly on the tone alert feature around noon on the first Wednesday of each month, to provide an opportunity for listeners to ensure that their equipment is in good working order.
In November 2002, the National Oceanic and Atmospheric Administration (NOAA) and National Weather Service (NWS) contacted the Consumer Electronics Association (CEA) to determine if CEA had any interest in joining with NWS in developing a national standard for NOAA Weather Radio (NWR) receivers. In February 2003 the CEA and NWS convened a Discovery Group of interested parties to investigate the need for a new standard for NWR receivers. By the end of February 2003, CEA's R3 Committee had approved the development of a voluntary industry. Standard defining minimum performance criteria for consumer electronics products designed to receive Specific Area Message Encoding (SAME) alert signals broadcast by the NWR network and Environment Canada's Meteorological Service of Canada Weatheradio network.
In December 2003, the CEA Standard, Receiver Performance Specification for Public Alert Receivers, CEA-2009 was approved by the Audio Systems Committee. A CEA Special Interest Group - an alliance of interested manufacturers and government agencies - created the corresponding Public AlertTM Certification and Logo Program and identified April 5, 2004, as the official launch date for the initiative. Members of the alliance include manufacturers and marketers of Public Alert devices, NOAA, NWS, Environment Canada and the CEA.
The purpose of the Public Alert program is to draw attention to new and existing devices and establish standards to improve public confidence in those devices. The CEA Public Alert Certification logo will appear on products at retail stores beginning in April 2004. The certification and technical standards for industry-defined Public Alert devices have been approved by key federal agencies in the U.S. and Canada.
This list shows weather alerts using SAME technology only. Alerts using just the 1050Hz tone are excluded however, SAME alerts using the 1050Hz in conjunction with SAME is listed here. Definitions for the SAME event is located below this chart, and also include event codes for future implementation. For all alerts issued by the Meteorological Service of Canada refer to Meteorological Service of Canada Weather Alerts.
A warning issued by Environment Canada’s Meteorological Service (MSC) when a prolonged period of reduced visibility caused by blowing dust (of one hour or more) is expected to occur, is imminent, or is occurring. (Alberta Only)
A watch is issued when conditions are favourable for the development of severe thunderstorms with one or more tornadoes.
A tornado warning is issued when a tornado has been reported; or when there is evidence based on radar, or from a reliable spotter that a tornado is imminent.
A warning is issued when winds 70 km/h or more sustained wind;and/or Gusts to 90 km/h or more.
Nationally Except: Alberta 80 km/h or more sustained wind; and/or Gusts to 100 km/h or more. Newfoundland and Labrador, including: Wreckhouse Winds (The warning covers only the Wreckhouse area of the West Coast of Newfoundland), Yukon: Dempster, British Columbia: Western Vancouver Island, Except: British Columbia North Vancouver Island Central Coast - coastal sections North Coast - coastal sections Haida Gwaii
A tsunami advisory indicates a tsunami with the potential to produce strong currents or waves and is dangerous to those in or very near the water is imminent, expected, or occurring. Large inundations are not expected in areas under advisory status. Note: Tsunami advisories are issued in partnership with provincial and federal organizations in response to a message from the National Tsunami Warning Center.
A tsunami watch is an early alert issued to areas which may later be impacted by a tsunami. Note: Tsunami watches are issued in partnership with provincial and federal organizations in response to a mesage from the National Tsunami Warning Center.
A tsunami warning indicates that a tsunami is imminent, expected, or occurring and that coastal locations in the warned area should expect widespread flooding. Note: Tsunami warnings are issued in partnership with provincial and federal organizations in response to a mesage from the National Tsunami Warning Center.
Severe Thunderstorm Watch
A watch is issued when conditions are favorable for the development of severe thunderstorms in and close to the watch area. Watches are usually in effect for several hours, with six hours being the most common.
Severe Thunderstorm Warning
Is issued when there is evidence based on radar, satellite pictures, or from a reliable spotter that any one or more of the following three weather conditions is imminent or occurring: Wind gusts of 90 km/h or greater, which could cause structural wind damage; Hail of two centimeters (cm) or larger in diameter; or Heavy rainfall, as per rainfall criteria, excluding those for winter and during thaw.
Flash Freeze Warning
When significant ice is expected to form on roads, sidewalks or other surfaces over much of a region because of the freezing of residual water from either melted snow, or falling/fallen rain due to a rapid drop in temperatures. Does not apply to Nunavik.
Winter Storm Warning
Applies to the following Alerts: Winter Storm Warning, Snowfall Warning, Freezing Rain Warning, Snowquall Warning. A Warning when conditions are favourable for the development of severe and potentially dangerous winter weather, including: A blizzard; A major snowfall (25 cm or more within a 24 hour period); and a significant snowfall (snowfall warning criteria amounts) combined with other winter weather hazard types such as: freezing rain, rainfall (over coastal BC only), strong winds, blowing snow and/or extreme wind chill.
An announcement for specific areas that blizzard conditions are possible.
National: A warning that sustained winds of 40 km/hr or greater are expected to cause widespread reductions in visibility to 400 metres or less, due to blowing snow, or blowing snow in combination with falling snow, for at least 4 hours. North of the tree line: A warning that sustained winds of 40 km/hr or greater are expected to cause widespread reductions in visibility to 400 metres or less, due to blowing snow, or blowing snow in combination with falling snow, for at least 6 hours.
Tropical Storm Watch
When, within the following 36 hours, a tropical storm or a developing tropical storm is expected to pose a possible threat, with the risk of tropical-storm force winds (average sustained winds of 63-117 km/h) threatening the area. This watch could be issued for: A tropical storm; or a hurricane that might approach an area but be far enough away that it is expected to bring gales that are less than hurricane force (118 km/h or higher).
Tropical Storm Warning
A warning When coastal and/or coastal winds of 63 to 117 km/h caused by a tropical cyclone are expected to occur.
When, within the following 36 hours, a hurricane or a developing hurricane is expected to pose a possible threat, with the risk of hurricane force winds (average sustained winds of 118 km/h or higher) threatening the area.
When, within the next 24 hours, a hurricane is expected to pose a threat, with hurricane force winds in the warning area
Required Weekly Test
A test conducted each Wednesday near noon.
Required Monthly Test
A test conducted on the first Wednesday of each month. This test is conducted following the Required Weekly Test.
Severe Weather Statement
Special Marine Warning
Biological Hazard Warning
Boil Water Warning
Child Abduction Warning
Civil Danger Warning
Civil Emergency Warning
Coastal Flood Watch
Coastal Flood Warning
Chemical Hazard Warning
Contaminated Water Warning
Dam Break Warning
Contagious Disease Warning
Emergency Action Notification
Emergency Action Termination
Food Contamination Warning
Flash Flood Watch
Flash Flood Statement
Flash Flood Warning
Hazardous Materials Warning
High Wind Watch
Inductrial Fire Warning
Local Area Emergency
Law Enforcement Warning
Land Slide Warning
Nuclear Power Plant Warning
Power Outage Statement
Radiological Hazard Warning
Special Weather Statement
Shelter In-Place Warning
911 Telephone Outage Emergency
Wild Fire Watch
Wild Fire Warning
Third Letter Event
A type of alert where a hazardous weather or environmental event that poses a significant threat to public safety and property is certain or imminent.
A type of alert where conditions are favourable for the development of weather or an environmental hazard that poses a significant threat to public safety and property, but the occurrence, location, and/or timing of the expected hazardous condition(s) is still too uncertain to issue a warning. It is intended to heighten public awareness of the potential impact of the event, and serves as a lead-up to a warning.
A type of alert where a certain weather or environmental hazard (for example air quality, humidex, and fog) is either occurring, imminent or is expected to occur.
An event code currently being tested for broadcast use.
In Canada, the Meteorological Service divides the country into several forecast regions for the purpose of issuing routine text forecasts and weather warnings, as Canada's provinces and territories do not use a common second-level administrative division scheme similar to the division of states into counties and parishes in the United States. Due to the localized nature of some weather phenomena, such as freezing rain storms and tornadoes, some forecast regions that have been found to be more prone to such phenomena are further divided into sub-regions, especially in the Prairie provinces. Parts of Northern British Columbia, Northern Quebec, Labrador, and the territories do not belong to any forecast region, owing to the lack of any significant population in those areas.
With the implementation of Specific Area Message Encoding into the Weatheradio Canada service in 2007, each forecast region and sub-region has been given a unique six-digit code known as a Canadian Location Code, or CLC. These codes are programmed into SAME-capable weather radio receivers the same way FIPS county codes are programmed into receivers in the United States, enabling them to only activate and sound an alert when the MSC issues weather warnings for the forecast regions that have their codes programmed into the receivers. Outside of Nunavut and the Northwest Territories, CLCs are assigned using the format 0paabb, where 0 is a constant, p is a province or provincial or territorial grouping, aa refers to a specific forecast region, and bb, if nonzero, refers to a sub-region. In Nunavut and the Northwest Territories, the format is 09aaa0, where aaa refers to the forecast region. The format is different in those territories because their population densities are much lower than elsewhere in the country.
List of forecast regions by province and territory
If viewing this page online, each forecast region name is linked to a page on the MSC's website detailing all watches and warnings currently in effect for that region.
Weatheradio Canada has been playing with the idea of new voices for quite sometime, these new voices would replace the current voice which was developed by StarCaster TTS located in British Columbia, Canada and used for over 15 years. Weatheradio Canada as of May 2018, sent out to Weatheradio listeners in selected regions an Administrative Bulletin using SAME, seeking comments on the new proposed voices coming to Weatheradio Canada. Here are some of the English and French voice samples from Weatheradio Canada in Ontario, Canada.
Currently the weatheradio network is not compatible with an All Hazards system, however, Meteorological Service of Canada is planning on upgrades that will allow Weatheradio Canada to broadcast civil alerts via the Weatheradio network. The alerting protocol does not fall under Environment and Climate Change Canada, it is the responsibility of Minister of Safety, and it is that department that decides what alerts are allowed to be broadcasted, and where they are broadcasted.