{
 "dataset": "Warning Latency Archive",
 "version": "0.1",
 "license": "CC-BY-4.0",
 "incidents": [
  {
   "incident_id": "WT-001-nepal-2026",
   "incident": "Bhote Koshi flash flood, Rasuwa",
   "date": "2026-08-26",
   "country": "Nepal",
   "system": "National flood warning (DHM early-warning chain)",
   "system_class": "mass-alerting",
   "t_onset": "2026-08-26T08:37:10+05:45",
   "t_detect": "2026-08-26T08:50:00+05:45",
   "t_confirm": "2026-08-26T09:15:00+05:45",
   "t_disseminate": "2026-08-26T09:16:00+05:45",
   "timezone": "NPT (UTC+05:45)",
   "failure_mode": "missed",
   "instrument_state": "Three gauges destroyed at 27/69/87% of their own warning stages, never fired (C06); the stages never rose",
   "lead_times": [
    {
     "location": "Syabrubesi (first settlement)",
     "minutes": {
      "early": -26.0,
      "late": -16.0
     }
    },
    {
     "location": "Betrawati (second settlement)",
     "minutes": {
      "early": 4.0,
      "late": 14.0
     }
    }
   ],
   "provenance": "C01-C16, WT-001 ledger; USGS us7000tbwb; DHM sitrep; ICIMOD PR; preprint v5",
   "retrieved": "2026-09-13"
  },
  {
   "incident_id": "WT-002-hawaii-2018",
   "incident": "False ballistic-missile alert, statewide",
   "date": "2018-01-13",
   "country": "USA (Hawaii)",
   "system": "Emergency Alert System + Wireless Emergency Alerts (HI-EMA origination)",
   "system_class": "mass-alerting",
   "t_onset": "2018-01-13T08:07:00-10:00",
   "t_detect": "2018-01-13T08:08:00-10:00",
   "t_confirm": "2018-01-13T08:09:00-10:00",
   "t_disseminate": "2018-01-13T08:45:00-10:00",
   "timezone": "HST (UTC-10:00)",
   "failure_mode": "false-positive",
   "instrument_state": "EAS and WEA performed to spec (FCC finding); no recall capability existed; no pre-scripted retraction template",
   "lead_times": [
    {
     "location": "n/a (no hazard arrived)",
     "minutes": null
    },
    {
     "location": "n/a",
     "minutes": null
    }
   ],
   "provenance": "C01-C16, WT-002 ledger; FCC DOC-350119 (Apr 2018)",
   "retrieved": "2026-09-15"
  }
 ]
}