Generally, there are three types of unusual weather conditions which may occur and for which extraordinary precaution should be taken:
- Severe thunderstorm activity
Local weather service will issue advisories predicting areas of probable severe thunderstorm activity and the estimated duration of such activity.
By definition, a tornado warning is an alert by the National Weather Service confirming a tornado sighting and location. The weather service will announce the approximate time of detection and direction of movement.
Public warning will come over the radio, TV or five-minute steady blasts of sirens by the Municipal Defense warning system.