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Campus Alert Archive
UC Berkeley

Possible person with gun near Northgate Hall area cleared by police

AI-generated · every claim is source-linked
CAarmed personemergency notificationhigh confidence
UnfoundedNo evidence of an actual threat was found. The institutional response is documented because the alert communication is identical to what would occur during a real incident.

UC Berkeley WarnMe @UCPD_Cal reported a possible person with gun near Northgate Hall and stated UCPD had cleared the area.

Alerts
1
Response
Killed
Injured
Institution
University of California, Berkeley
Public R1 · CA
All UC Berkeley cases →
~45,000 studentsWarnMe / @UCPD_Cal
Official alert policy
Read when and how UC Berkeley says it will use WarnMe: summarized, quoted, and analyzed.
Documented Timeline

Alert Sequence

1 message in sequence · 1 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.

ALL CLEARTwitter/X
Verified verbatim128 chars
UC Berkeley WarnMe - Critical Alert: report of possible person with gun near Northgate Hall. The area has been cleared by UCPD.
Dual independent X fetch match 2026-08-02. SPN 523.
Single message pairs report with area cleared.
Message elements

How the first alert is built

To check this alert, SuperGrok Heavy 4.5 (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.

UC Berkeley WarnMe - Critical Alert: report of possible person with gun near Northgate Hall. The area has been cleared by UCPD.

  • Sourcepresent25/25

    Final assessment

    Majority 25/25 present. Institutional branding appears via "Alert:", which marks the sender.

    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.

    See all 25 individual reads
    1. present: Institutional branding appears via "Alert:", which marks the sender.
    2. present: The notice identifies who is speaking through "Alert:".
    3. present: Source is present because "Alert:" names the issuing campus or alert brand.
    4. present: A campus or alert signature ("Alert:") supplies the authority line.
    5. present: Sender identity is clear from the wording "Alert:".
    6. present: The alert tags an official issuer with "Alert:".
    7. present: Who is sending this is stated through "Alert:".
    8. present: Branded language "Alert:" functions as the source element.
    9. present: Campus naming in "Alert:" tells recipients the origin of the message.
    10. present: An official voice is established by "Alert:".
    11. present: The opening or body includes "Alert:" as institutional source.
    12. present: "Alert:" is enough to code source present under the branding rule.
    13. present: Recipients can tell the sender from "Alert:".
    14. present: Source scores present: "Alert:" is an authority marker.
    15. present: The university or college is referenced as "Alert:".
    16. present: Alert-system or school labeling ("Alert:") covers source.
    17. present: Issuing body is identifiable from "Alert:".
    18. present: "Alert:" operates as a branded signature for source.
    19. present: The text attributes the message via "Alert:".
    20. present: Source present: campus authority language "Alert:".
    21. present: Readers see "Alert:" and know which campus is speaking.
    22. present: Official sender cue "Alert:" is explicit in the text.
    23. present: Source is coded yes based on "Alert:".
    24. present: The phrase "Alert:" identifies the responding institution.
    25. present: Authority is named through the fragment "Alert:".
  • Hazardpresent25/25

    Final assessment

    Majority 25/25 present. Hazard is specific: the text names "UC Berkeley WarnMe - Critical Alert: re…".

    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.

    See all 25 individual reads
    1. present: Hazard is specific: the text names "UC Berkeley WarnMe - Critical Alert: re…".
    2. present: A concrete threat appears as "UC Berkeley WarnMe - Critical Alert: re…".
    3. present: The what of the emergency is "UC Berkeley WarnMe - Critical Alert: re…", not a vague incident label.
    4. present: "UC Berkeley WarnMe - Critical Alert: re…" satisfies hazard by naming the condition or threat.
    5. present: Readers learn the hazard type from "UC Berkeley WarnMe - Critical Alert: re…".
    6. present: Hazard present via the explicit phrase "UC Berkeley WarnMe - Critical Alert: re…".
    7. present: The threat is particularized as "UC Berkeley WarnMe - Critical Alert: re…".
    8. present: Coding H=1 because "UC Berkeley WarnMe - Critical Alert: re…" is a named hazard.
    9. present: Specific danger language: "UC Berkeley WarnMe - Critical Alert: re…".
    10. present: The alert states the problem as "UC Berkeley WarnMe - Critical Alert: re…".
    11. present: Hazard element met by "UC Berkeley WarnMe - Critical Alert: re…".
    12. present: "UC Berkeley WarnMe - Critical Alert: re…" is more than a generic emergency word.
    13. present: Threat identity is clear from "UC Berkeley WarnMe - Critical Alert: re…".
    14. present: The message pins the hazard to "UC Berkeley WarnMe - Critical Alert: re…".
    15. present: Named condition "UC Berkeley WarnMe - Critical Alert: re…" counts as hazard.
    16. present: H is present: "UC Berkeley WarnMe - Critical Alert: re…" tells what is wrong.
    17. present: Concrete hazard wording includes "UC Berkeley WarnMe - Critical Alert: re…".
    18. present: The incident type is given as "UC Berkeley WarnMe - Critical Alert: re…".
    19. present: "UC Berkeley WarnMe - Critical Alert: re…" is the stated threat or weather/system hazard.
    20. present: Hazard codes yes on "UC Berkeley WarnMe - Critical Alert: re…".
    21. present: Specifics beat generics here: "UC Berkeley WarnMe - Critical Alert: re…".
    22. present: The text's hazard signal is "UC Berkeley WarnMe - Critical Alert: re…".
    23. present: What happened is labeled "UC Berkeley WarnMe - Critical Alert: re…".
    24. present: Hazard present with the phrase "UC Berkeley WarnMe - Critical Alert: re…".
    25. present: Threat naming succeeds through "UC Berkeley WarnMe - Critical Alert: re…".
  • Locationpresent25/25

    Final assessment

    Majority 25/25 present. Location is given through "Northgate Hall".

    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.

    See all 25 individual reads
    1. present: Location is given through "Northgate Hall".
    2. present: Place is specified as "Northgate Hall".
    3. present: Where is answered by "Northgate Hall".
    4. present: "Northgate Hall" functions as the location element.
    5. present: The alert situates the event with "Northgate Hall".
    6. present: Geographic or campus place: "Northgate Hall".
    7. present: L=1 because "Northgate Hall" names where this applies.
    8. present: Recipients are told the place via "Northgate Hall".
    9. present: Location present in the phrase "Northgate Hall".
    10. present: A campus or building reference "Northgate Hall" covers location.
    11. present: The where cue is "Northgate Hall".
    12. present: "Northgate Hall" identifies the affected area.
    13. present: Place naming succeeds with "Northgate Hall".
    14. present: Location codes yes on "Northgate Hall".
    15. present: Site detail appears as "Northgate Hall".
    16. present: The message anchors place with "Northgate Hall".
    17. present: "Northgate Hall" is enough location under the rubric.
    18. present: Affected place language: "Northgate Hall".
    19. present: L is present via "Northgate Hall".
    20. present: Campus geography is marked by "Northgate Hall".
    21. present: Where this matters is "Northgate Hall".
    22. present: The text localizes to "Northgate Hall".
    23. present: Location element met by "Northgate Hall".
    24. present: Place is not left blank: "Northgate Hall".
    25. present: Spatial reference "Northgate Hall" supports L=1.
  • Guidanceabsent0/25

    Final assessment

    Majority 25/25 absent. No protective action or operational instruction is given to recipients.

    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.

    See all 25 individual reads
    1. absent: No protective action or operational instruction is given to recipients.
    2. absent: Guidance is absent: the text does not tell people what to do.
    3. absent: There is no shelter, avoid, evacuate, remote, or similar directive.
    4. absent: G=0 because audience-facing instructions are missing.
    5. absent: The message reports status without directing action.
    6. absent: No what-to-do language appears.
    7. absent: Guidance fails: pure information without orders.
    8. absent: Recipients are not told a protective step.
    9. absent: Instructional content is not present.
    10. absent: The alert omits guidance to the public.
    11. absent: Without a directive, G is zero.
    12. absent: No action line is addressed to readers.
    13. absent: Guidance element codes absent.
    14. absent: What-to-do is left unstated.
    15. absent: The text does not instruct avoidance, shelter, or closure behavior.
    16. absent: Audience guidance is missing from the body.
    17. absent: G fails the protective-action test.
    18. absent: No operational instruction is issued.
    19. absent: Readers get facts but not orders.
    20. absent: Guidance not established here.
    21. absent: Directive language is absent.
    22. absent: The message never tells recipients how to act.
    23. absent: No shelter/evacuate/remote/close instruction appears.
    24. absent: G is absent on non-directive wording.
    25. absent: Protective guidance cannot be coded present.
  • Timeabsent0/25

    Final assessment

    Majority 25/25 absent. No clock time, date, or recency word such as now or today appears.

    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.

    See all 25 individual reads
    1. absent: No clock time, date, or recency word such as now or today appears.
    2. absent: Time is absent from the alert text.
    3. absent: Nothing tells recipients when this applies.
    4. absent: T=0 because temporal cues are missing.
    5. absent: No day, hour, or immediate language is stated.
    6. absent: The message omits timing entirely.
    7. absent: Time element fails on this wording.
    8. absent: When is left unspecified.
    9. absent: No calendar or clock reference is present.
    10. absent: Temporal information cannot be found.
    11. absent: Without a time cue, T is zero.
    12. absent: The alert is silent on schedule.
    13. absent: Time codes absent here.
    14. absent: Recency language is missing.
    15. absent: T fails the when test.
    16. absent: No today/now/clock marker appears.
    17. absent: Timing is not established by the text.
    18. absent: Date and hour are both omitted.
    19. absent: Temporal element is not satisfied.
    20. absent: The body lacks any when cue.
    21. absent: Time not present under the rubric.
    22. absent: Schedule detail is blank.
    23. absent: No temporal anchor is given.
    24. absent: T is absent on timeless wording.
    25. absent: When-information is not included.
  • Impactpresent25/25

    Final assessment

    Majority 25/25 present. Impact is conveyed by "UC Berkeley WarnMe - Critical Alert: re…".

    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.

    See all 25 individual reads
    1. present: Impact is conveyed by "UC Berkeley WarnMe - Critical Alert: re…".
    2. present: Consequence language appears as "UC Berkeley WarnMe - Critical Alert: re…".
    3. present: Severity or harm is signaled by "UC Berkeley WarnMe - Critical Alert: re…".
    4. present: "UC Berkeley WarnMe - Critical Alert: re…" states what the hazard does to people or operations.
    5. present: I=1 because "UC Berkeley WarnMe - Critical Alert: re…" implies real-world impact.
    6. present: The alert spells impact through "UC Berkeley WarnMe - Critical Alert: re…".
    7. present: Impact present: "UC Berkeley WarnMe - Critical Alert: re…".
    8. present: Operational or safety consequence "UC Berkeley WarnMe - Critical Alert: re…" is explicit.
    9. present: What could happen is framed as "UC Berkeley WarnMe - Critical Alert: re…".
    10. present: "UC Berkeley WarnMe - Critical Alert: re…" counts as impact beyond bare hazard naming.
    11. present: Impact element met by "UC Berkeley WarnMe - Critical Alert: re…".
    12. present: Severity cue "UC Berkeley WarnMe - Critical Alert: re…" supports I=1.
    13. present: I codes yes on "UC Berkeley WarnMe - Critical Alert: re…".
    14. present: The text links hazard to effect via "UC Berkeley WarnMe - Critical Alert: re…".
    15. present: Consequence wording: "UC Berkeley WarnMe - Critical Alert: re…".
    16. present: "UC Berkeley WarnMe - Critical Alert: re…" shows stakes for the campus community.
    17. present: Impact is not left implicit only: "UC Berkeley WarnMe - Critical Alert: re…".
    18. present: Harm or closure effect appears as "UC Berkeley WarnMe - Critical Alert: re…".
    19. present: I is present via "UC Berkeley WarnMe - Critical Alert: re…".
    20. present: The message states impact with "UC Berkeley WarnMe - Critical Alert: re…".
    21. present: Real-world effect language "UC Berkeley WarnMe - Critical Alert: re…" is included.
    22. present: Impact signal: "UC Berkeley WarnMe - Critical Alert: re…".
    23. present: "UC Berkeley WarnMe - Critical Alert: re…" communicates severity or disruption.
    24. present: Consequence is clear from "UC Berkeley WarnMe - Critical Alert: re…".
    25. present: Impact present through the phrase "UC Berkeley WarnMe - Critical Alert: re…".

Coded by SuperGrok Heavy 4.5

Systematic AI judgments with visible reasoning, not human-validated codings.

About this analysis
Context

Background

UC Berkeley posts WarnMe alerts on @UCPD_Cal.
Analysis

Key Findings

Possible gun report with immediate area-cleared framing in one transmission.
Outcome
Area cleared by UCPD.
Provenance

Sources

Every 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.

  1. Social
Cite this case

Campus Alert Archive. "University of California, Berkeley: Possible person with gun near Northgate Hall area cleared by police." Incident of April 25, 2026. Added August 2026. https://campusalertarchive.com/case/uc-berkeley-northgate-hall-possible-person-with-gun-cleared-2026-04-25/

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Alert text quoted on this page remains the work of the issuing institution; the archive is a secondary source.

Tags
public-r1californiaarmed-personwarnmeuc-berkeleyUnfounded
Added August 2026Updated August 2026Via ingestion