Weather warning side companies like Weather Watch or Instant Weather. These side companies are not associated with the government in any way. Environment Canada defines a advisory as ""an alert to cover a wide array of deteriorating weather conditions,"" a watch as ""when conditions favour that severe weather forming"" and a warning as ""severe weather is actually occurring or is imminent."" . Additionally, Environment Canada breaks down weather alerts based upon the specific type of hazardous weather. These alerts are regionally issued throughout Canada and include, but are not limited to, winter storms, extreme temperature, ice, thunderstorms (including tornadoes), wind, tsunami, tropical
NOAA Weather Radio broadcast routine segment if no report is available from the main reporting station, in which case the substituted station's observations will not be repeated at the end of the segment. In some locales, in the event any weather reporting station (whether the main station or a distant site) whose condition reports are regularly included in the segment had absent data, or no data available, the following message would be played in its place:In some areas, a major city featured within the regional observations would always provide weather conditions; if a condition report is unavailable, the message "the weather conditions were not available"