Lightning detected within 10 miles of Michigan Stadium forced officials to clear the seating bowl and field before the Michigan-Hawaii season opener on September 10, 2022. With more than 100,000 fans expected, the university directed spectators to the concourse and nearby buildings and announced a delayed kickoff of approximately 9 p.m. ET.
5 messages in sequence · 5 verified verbatim
Confirmed wording is transcribed character-for-character from a primary source. Use Verify this quote under each message to open that source in a new tab and compare the text yourself.
To check this alert, Claude (an AI) read it in full 25 separate times, independently. Each read decided whether the message answers each of the six questions and gave a short reason. A final reviewer then weighed all 25 and wrote the plain-English verdict you see when you open a row. The score (for example 22/25) is how many reads agreed; the 25 individual reads are tucked underneath if you want to check them.
There is potential for severe weather today. The start of the game may be delayed or play suspended if there is lightning within 10 miles. Instructions will be shared over PA, video screens & Twitter. Shelter locations include vehicles, Pioneer HS & U-M facilities. Stay tuned.
Final assessment
All reads agree no sender, agency, or branded signature appears anywhere in the text.
Who is sending the alert and who is responding. People act faster on a message from a clearly identifiable, credible sender, such as a named department, the police, or a branded alert system, than on an anonymous notice. A branded signature counts.
Final assessment
Unanimous: 'severe weather' and 'lightning within 10 miles' name the specific hazard.
What the threat actually is. A complete warning names the specific danger, such as a shooter, a fire, a tornado, or a gas leak, rather than a vague emergency, because people decide what to do based on what they are facing.
Final assessment
Nearly all reads point to 'Pioneer HS & U-M facilities' as named shelter locations; one lone dissent called it too generic, but the consensus finds it specific enough to count.
Where the threat is. Saying whether danger is in a specific building, a part of campus, or area-wide lets people judge their own proximity and choose a safe direction. Without a where, a warning is hard to act on precisely.
Final assessment
Unanimous: the listed shelter locations plus 'Stay tuned' give recipients concrete direction.
The protective action to take. A clear, specific instruction, such as shelter in place, evacuate, avoid the area, or run-hide-fight, drives faster and more correct protective behavior than describing the threat alone.
Final assessment
Unanimous: 'today' conveys recency.
When the message applies. A timestamp, the word now or immediately, or a phrase like until further notice tells the reader whether the danger is current and how quickly to act.
Final assessment
Most reads find no stated consequence beyond naming the hazard and a possible delay; a minority read the game delay/suspension language as implying danger, but the majority view prevails.
What the hazard could do to the people in its path. Beyond naming the threat, a complete warning conveys its potential consequences or severity, such as that a tornado can level buildings or that a leak could be explosive, so recipients grasp how much danger they are in. Research on warning message content finds that a concrete impact statement helps people personalize their risk and act sooner.
Systematic AI judgments with visible reasoning, not human-validated codings.
About this analysisEvery claim on this page is meant to be checkable. Open the links below (and the Verify this quote control under each confirmed alert) to read the original university, news, or archive page yourself. Hostnames are shown so you can see where you are going; archived copies survive when live pages move or disappear. See also our methodology.
Campus Alert Archive. "University of Michigan: Lightning forces fans to clear the stadium seating bowl; kickoff delayed." Incident of September 10, 2022. Added May 2026; last updated July 2026. https://campusalertarchive.com/case/michigan-stadium-hawaii-lightning-delay-2022-09-10/
Alert text quoted on this page remains the work of the issuing institution; the archive is a secondary source.