You will need to scroll. Please read the notes and credits for what the two signals mean. Tests will be cancelled if temperatures are below 20 degrees(SWA is exempt from this). Tests are postponed to the following week if severe weather is imminent around the test time. Tests are done every first and third mondays at noon central time. Tests will be redone at 1 PM if something goes wrong during the scheduled test. Signals used are: Voice announcement(for tests only), 3 minutes of alert, 3 minutes of attack(may in rare cases be a 6 minute attack). In very rare cases will a music test follow the two signals. A notice will follow if: Additional testing is occurring after the main test, if maintenance testing is occurring.
You will need to scroll. Alert: Watch signal, indicates a tornado, severe thunderstorm, or high wind watch. Attack: Warning signal, indicates a tornado, severe thunderstorm, or high wind warning. TAKE COVER IF YOU HEAR THIS SIGNAL OUTSIDE OF A REGULARLY SCHEDULED TEST. Long beep then a voice announcement: Lightning detected with a lightning detector app or website. NOTICE: NO BEEP WILL OCCUR BEFORE THE TEST ANNOUNCEMENT.