Event codes for Specific Area Message Encoding
Important notice: Weatheradio and Hello Weather are no longer in service.
You can get radio marine forecasts via the Canadian Coast Guard.
For your local weather forecasts and alerts, visit the interactive weather map or download the WeatherCAN app.
1*Note: Severe thunderstorm and Tornado warnings are also accompanied by a 1050 Hz warning tone to trigger basic tone alert receivers
2*Note: All overnight alerts (10:30 pm to 6 am, local time) will be delayed until 6 am. The exception are Severe thunderstorm, Tornado, Tropical storm, Hurricane, Tsunami warnings and Tsunami advisories.
3*Note: In some jurisdictions this alert is called a Storm Surge Warning (SSW) and in others it is called a Coastal Flood Warning (CFW).
| Code | Bulletin |
|---|---|
| BZW | Blizzard warning |
| CFW3* | Coastal Flood warning |
| DSW | Dust storm warning |
| FSW | Flash freeze warning |
| HUA | Hurricane watch |
| HUW2* | Hurricane warning |
| HWW | High wind warning including… Les Suêtes wind warning |
| SMW | Special marine warning |
| SVA | Severe thunderstorm watch |
| SVR1*2* | Severe thunderstorm warning |
| SVS | Severe weather statement |
| SSW3* | Storm Surge warning |
| TOA | Tornado watch |
| TOR1*2* | Tornado warning |
| TRA | Tropical storm watch |
| TRW2* | Tropical storm warning |
| TSA | Tsunami watch |
| TSW2* | Tsunami Advisory or Tsunami warning |
| WSA | Winter storm watch |
| WSW | Winter storm warning including... Blowing snow warning Freezing drizzle warning Freezing rain warning Snowfall warning Snow squall warning |
| ??A | Unrecognized watch |
| ??E | Unrecognized emergency |
| ??S | Unrecognized statement |
| ??W | Unrecognized warning |
| Code | Bulletin |
|---|---|
| RMT1* | Required monthly test |
| RWT | Required weekly test |
| Code | Bulletin |
|---|---|
| AVA | Avalanche watch |
| AVW | Avalanche warning |
| BHW | Biological hazard warning |
| BWW | Boil water warning |
| CAE | Child abduction emergency |
| CDW | Civil danger warning |
| CEM | Civil emergency |
| CFA | Coastal flood watch |
| CHW | Chemical Hazard Warning |
| CWW | Contaminated water warning |
| DBA | Dam watch |
| DBW | Dam break warning |
| DEW | Contagious disease warning |
| EAN | Emergency action notification |
| EAT | Emergency action termination |
| EQW | Earthquake warning |
| EVA | Evacuation watch |
| EVI | Immediate evacuation |
| FCW | Food contamination warning |
| FFA | Flash flood watch |
| FFS | Flash Flood Statement |
| FFW | Flash flood warning |
| FLA | Flood watch |
| FLS | Flood statement |
| FLW | Flood warning |
| FRW | Fire warning |
| HLS | Hurricane statement |
| HMW | Hazardous materials warning |
| HWA | High wind watch |
| IBW | Iceberg warning |
| IFW | Industrial fire warning |
| LAE | Local area emergency |
| LEW | Law enforcement warning |
| LSW | Land slide warning |
| NUW | Nuclear power plant warning |
| POS | Power outage statement |
| RHW | Radiological hazard warning |
| SPS | Special weather statement |
| SPW | Shelter in-place Warning |
| TOE | 911 Telephone outage emergency |
| VOW | Volcano warning |
| WFA | Wild fire watch |
| WFW | Wild fire warning |
| Code | Bulletin |
|---|---|
| ADR | Administrative message |
| DMO | Practice/demo |
| NAT | National audible test |
| NIC | National Information Centre |
| NMN | Network notification essage |
| NPT | National periodic test |
| NST | National silent test |
| TXB | Transmitter backup on |
| TXF | Transmitter carrier off |
| TXO | Transmitter carrier on |
| TXP | Transmitter primary on |