It’s unclear what caused two separate instances in which flashes of light were followed by thunderous booms in Baraboo early Sunday.

“We don’t know if we have Clintonville going on here or what,” said Baraboo Police Chief Mark Schauf, referring to the city west of Green Bay where residents have heard multiple booms in recent weeks.

Baraboo city officials may now have their own booms to investigate.

A resident on Sauk Avenue called 911 to report a loud boom Sunday around 1 a.m. That prompted more than 30 comments on the Baraboo Scanner page on Facebook — which posts information about calls to public service agencies — from other residents who heard the same thing. Some reported they saw a flash before the boom.

About 45 minutes later, residents throughout the city called authorities to report a second flash and boom.

A Baraboo police officer witnessed the first incident while parked on the 800 block of Eighth Street.

“I observed a large flash of light followed by a ‘boom,’” the officer wrote in his report. “I advised dispatch of this information and my belief that it was possibly a transformer.”

However, Sauk County Sheriff’s Department dispatchers contacted Alliant Energy, and reported the company knew of no power outages in the Baraboo area.

Alliant spokesman Steve Schultz confirmed Monday there were no outages in Baraboo around that time.

Some Facebook users initially speculated thunder and lightning were the culprits. But that doesn’t seem to be the case.

“There doesn’t appear to have been any t-storms in that area Sunday morning,” said Ed Townsend, a meteorologist with the National Weather Service’s Sullivan office. “I can’t think of anything else (weather-related) that would lead to a flash.”

Townsend said the Baraboo booms seem different from those reported in Clintonville because they were preceded by flashes of light.

Clintonville officials asked the U.S. Geological Survey for help to determine the cause of their booms. Scientists with USGS and Michigan Technological University responded and recently traveled to Clintonville to bury four seismic sensors and audio equipment in and around the city.

An assistant professor from Michigan Tech reviewed the city’s data and confirmed one of the booms resulted from a small earthquake, according to the Appleton Post-Crescent.

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(4) comments




I have been hearing loud booms for about 6 months now, it sounds like deep thunderous explosions underground. It seems like they are coming from the south east outside of the city. Lately there have been none, but months ago it happened often.

They have woken me up at night, often 3 loud booms and the earth shakes. Other people in my family have heard them also. If it is earthquakes, why are they not investigating and explaining what is causing it, why did they not notice this until hundreds of people in Clintonville called 911? Why does Clintonville have to rent its own seismograph equipment to find the source? Where is the USGS and the state?

What if this is the start of something major? What if the poles are shifting? What if it is China burrowing under us? Personally I think it is the federal government tunneling, look at the digging machines they operate, those do not sit idle, they are building huge bunker systems. It is really only logical that they would be doing this......



This was most likely thunder, and lightning. It was VERY foggy this morning, like pea soup. But I still think the booming in Clintonville, Montello, and what I have heard in Baraboo are connected. Sawyer AFB in the UP had a large bunker system, people claim there are underground submarine bases on the great lakes. And it is well known they built a huge bunker under the Denver airport.

But as I said it is only logical, the Swiss can shelter their entire population in bunker systems. Our government did not even tell us about certain weapons that were operational for 20 years, the stealth fighter for example. Just google and look at the tunneling machines, as I said they do not sit idle, we have some solid rock here and sound travels, that is my theory anyways.


Acient Alien theory is they are coming back this year and the government knows, so they must prepare to hide in tunnels made to survive up to two years because of the WAR THAT WILL BECOME when the aliens arrive. Ok enough said I will take my meds now. Ha Ha

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