{
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    "precipitation:2026-02-11": {
      "dedup_key": "precipitation:2026-02-11",
      "alert_type": "precipitation",
      "sent_at": "2026-02-11T04:01:04.179269",
      "forecast_hour": "2026-02-11-08"
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  "last_updated": "2026-02-11T08:01:04.221838",
  "previous_alert_snapshots": {
    "precipitation": {
      "alert_type": "precipitation",
      "extreme_value": 97.0,
      "threshold": 60,
      "start_time": "2026-02-11-09",
      "end_time": "2026-02-11-11",
      "hour_count": 3,
      "captured_at": "2026-02-11T08:01:04.221835"
    }
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  "last_ai_summary_sent": null
}