{
  "sent_alerts": {
    "precipitation:2026-04-05": {
      "dedup_key": "precipitation:2026-04-05",
      "alert_type": "precipitation",
      "sent_at": "2026-04-05T00:01:04.181335",
      "forecast_hour": "2026-04-05-02"
    }
  },
  "last_updated": "2026-04-05T00:01:04.181368",
  "previous_alert_snapshots": {
    "precipitation": {
      "alert_type": "precipitation",
      "extreme_value": 95.0,
      "threshold": 60,
      "start_time": "2026-04-05-02",
      "end_time": "2026-04-05-04",
      "hour_count": 3,
      "captured_at": "2026-04-05T00:01:04.181354"
    }
  },
  "last_ai_summary_sent": null
}