{
  "sent_alerts": {
    "temperature_low:2026-02-01": {
      "dedup_key": "temperature_low:2026-02-01",
      "alert_type": "temperature_low",
      "sent_at": "2026-02-01T00:01:05.309466",
      "forecast_hour": "2026-02-01-01"
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  "last_updated": "2026-02-01T04:01:09.987921",
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      "hour_count": 1,
      "captured_at": "2026-02-01T04:01:09.987908"
    },
    "temperature_low": {
      "alert_type": "temperature_low",
      "extreme_value": 15.0,
      "threshold": 32,
      "start_time": "2026-02-01-05",
      "end_time": "2026-02-01-08",
      "hour_count": 4,
      "captured_at": "2026-02-01T04:01:09.987910"
    }
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  "last_ai_summary_sent": null
}