MILLSTADT, Ill. — Skies are cloudy, but people in Illinois may hear a tornado siren test Tuesday morning.
Illinois Emergency Management Agency runs a test on the first Tuesday of each month at 10 a.m.
People in Belleville, Collinsville, East St. Louis, Edwardsville, Granite City, Springfield, Peoria, and all the way to Chicago could hear an outdoor warning siren.
There may be rain and isolated storms Tuesday, so make sure you pay attention to weather conditions in your region. Check the weather any time at KSDK.com/weather.
What do the sirens sound like?
The sirens have two tones. One loud, constant noise is an emergency alert. It could mean a tornado warning, severe storm, earthquake, hazardous material incident or biological hazard. Listen to the alert siren here.
There is another tone that is for an "attack emergency." This tone is up and down, rising and falling. This siren tone is used if there was an actual or impending attack on a local community. Listen to the attack siren here.
If you hear either alert tone, seek shelter inside and turn on a radio or television for information.
People should not call 911 unless they are experiencing or witnessing an emergency.
What do you do in a tornado warning?
In the St. Louis area, sirens are commonly activated for tornado warnings.
For anywhere you may be, learn about finding a safe shelter here.
