{
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      "sent_at": "2026-03-09T20:01:04.687100",
      "forecast_hour": "2026-03-10-00"
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  "last_updated": "2026-03-10T12:01:05.078586",
  "previous_alert_snapshots": {
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      "extreme_value": 61.0,
      "threshold": 60,
      "start_time": "2026-03-10-13",
      "end_time": "2026-03-10-13",
      "hour_count": 1,
      "captured_at": "2026-03-10T12:01:05.078580"
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  "last_ai_summary_sent": null
}