{
  "id": "2026-09-03-university-of-michigan-washtenaw-tornado-warning",
  "slug": "university-of-michigan-washtenaw-tornado-warning-2026-09-03",
  "institution": {
    "name": "University of Michigan",
    "shortName": "U-M",
    "state": "MI",
    "type": "public-r1",
    "alertSystemName": "DPSS / @umichdpss",
    "enrollment": 50000
  },
  "incident": {
    "date": "2026-09-03",
    "type": "tornado",
    "cleryCategory": "emergency-notification",
    "resolution": "resolved",
    "headline": "Washtenaw County tornado warning until 4:15 p.m. then expired",
    "headlinePublic": "Washtenaw County tornado warning until 4:15 p.m. then expired",
    "summary": "U-M DPSS posted a [tornado warning](https://x.com/umichdpss/status/2095596145611300943) then an [expired update](https://x.com/umichdpss/status/2095606754297999808) on [@umichdpss](https://x.com/umichdpss).",
    "outcome": "Warning expired at 4:15 p.m.; remain weather aware."
  },
  "alerts": [
    {
      "sequence": 1,
      "type": "initial",
      "timestamp": "2026-09-03T15:33:50-04:00",
      "channel": "twitter-x",
      "verbatimText": "UM EAlert\n Ann Arbor: Tornado Warning for Washtenaw County until 4:15pm. Move inside to lowest level, away from windows.",
      "isVerbatimConfirmed": true,
      "confidence": "high",
      "sourceUrl": "https://x.com/umichdpss/status/2095596145611300943",
      "sourceDescription": "@umichdpss seq 1",
      "annotations": [
        "Dual independent X fetch 2026-09-14. sha256 77eac06beb2e033295dd14bdd5cc1a74c6d076d67396c8afcc07011a1b57a7c0 chars=120.",
        "Thread walked 2026-09-14 @umichdpss: warning then expired update.",
        "Official newline after UM EAlert and leading space before Ann Arbor preserved."
      ],
      "characterCount": 120
    },
    {
      "sequence": 2,
      "type": "all-clear",
      "timestamp": "2026-09-03T16:15:59-04:00",
      "channel": "twitter-x",
      "verbatimText": "UM EAlert\n Ann Arbor Update: 4:15 pm Tornado warning for Washtenaw County has expired at this time. Remain weather aware. More Info: https://t.co/Qre2CZqBGn",
      "isVerbatimConfirmed": true,
      "confidence": "high",
      "sourceUrl": "https://x.com/umichdpss/status/2095606754297999808",
      "sourceDescription": "@umichdpss seq 2",
      "annotations": [
        "Dual independent X fetch 2026-09-14. sha256 476ef6ed9368e6d5c5c300089f11687453c5a78fce53ea073f606d61d2e903e4 chars=156.",
        "oembed t.co; fxtwitter expands dpss.umich.edu."
      ],
      "characterCount": 156
    }
  ],
  "context": "Official products on [@umichdpss](https://x.com/umichdpss). Distinct from same-day [MSU Berkey](https://x.com/michiganstateu) (different campus).",
  "keyFindings": [
    "Campus-directed move-inside on a county tornado warning."
  ],
  "sources": [
    {
      "title": "@umichdpss seq 1",
      "url": "https://x.com/umichdpss/status/2095596145611300943",
      "type": "official-social",
      "accessDate": "2026-09-14",
      "archiveUrl": null,
      "archiveNotes": "SPN not attempted after 500 flap"
    },
    {
      "title": "@umichdpss seq 2",
      "url": "https://x.com/umichdpss/status/2095606754297999808",
      "type": "official-social",
      "accessDate": "2026-09-14",
      "archiveUrl": null,
      "archiveNotes": "SPN not attempted after 500 flap"
    }
  ],
  "confidence": "high",
  "tags": [
    "public-r1",
    "mi",
    "tornado"
  ],
  "dateAdded": "2026-09-14",
  "lastUpdated": "2026-09-14",
  "addedBy": "ingestion"
}