{
  "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": "2026-04-08T16:01:03.658353",
  "previous_alert_snapshots": {},
  "last_ai_summary_sent": null
}