05/19/2026
The outdoor warning sirens were triggered in Lansing yesterday - here's why:
There were several reports of winds higher than 70 miles per hour to our west as the line of storms approached. At 3pm the US National Weather Service Grand Rapids Michigan issued a Severe Thunderstorm Warning with an expectation of winds reaching 80 miles per hour! We literally have tornadoes that come through with weaker winds, so it made sense to activate them in this case.
Plus if you happened to have a police scanner on when I made the call, you'd have heard the "tension" in my voice as this isn't a decision made lightly. I asked Ingham County 911 Central Dispatch to activate them once ONLY in Lansing / Lansing Township, and then waited to see how the storms actually acted. The worst of the winds moved on up into Clinton County so the sirens were not activated further.
I've attached some pictures of damage in the area.
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FREQUENTLY ASKED QUESTIONS about outdoor warning (tornado) sirens:
1) What are they for?
Sirens are meant to alert people who are OUTDOORS that there is some sort of emergency that requires them to get into a safe space and seek out more information.
2) Why are they activated?
- A Tornado Warning from the National Weather Service
- A credible report of a tornado from a trained weather spotter
- Extreme straight line winds of 75mph or higher
- Also for events unrelated to weather, like a chemical leak
3) How long are they activated for?
The first alert is for 3 minutes. If we have not received confirmation of any damage or tornadoes, the sirens will go silent. THAT DOES NOT MEAN THE THREAT HAS ENDED!
If we have confirmation of damage or a tornado ongoing, the sirens will REPEATEDLY be reactivated.
4) Is there an "all clear" siren activation?
NEVER. If you hear a siren, we want people to take cover!
5) Why are mine still sounding even after the storm has passed?
We break the county up into four sectors and group the sirens that way. As the storm passes, we stop alerting that sector, but simply because of geography, if you are on campus at MSU (the northwest sector) your sirens are attached to Meridian Township's so you will still hear them even though the threat has passed. But if the storm is in Stockbridge, Lansing - East Lansing - Meridian - Holt sirens would remain silent.
6) How do I know why the sirens are being activated?
LAYERS SAVE LIVES! Invest in an all-hazards NOAA Weather Radio. They are $30-50 depending on the features and can be enabled just to alert you for Ingham County. Sign up for our free Smart911/RAVE service https://www.smart911.com/smart911/ref/reg.action?pa=ingham which will send emails, text messages, phone calls and app alerts for emergency situations in the county. Make sure you have NOT accidentally disabled emergency alerts in your phone, as the National Weather Service automatically sends one for extreme weather events.
7) When are they tested?
If anything goes wrong at a siren, it sends us a signal and the status icon changes colors. Three times a day the system automatically radios each siren and gets a status report just in case there is a communications issue, and also changes the color if no response is received. The first Saturday of every month we sound all sirens for three minutes, just like in a real alert, at 1pm to fully test the system.
8 ) Why isn't there a siren in my area?
The county had a siren study done to show us where the highest population density exists and where sirens would alert the greatest number of people. They are VERY expensive to install, and costly to maintain - in more rural areas it would be cheaper to get everyone a weather radio than to install just one siren (and they have an effective range of about a mile.) And as noted above, a siren won't do you any good inside while sleeping with the windows closed...