{
  "source": "https://www.ncei.noaa.gov/pub/data/swdi/stormevents/csvfiles/StormEvents_details-ftp_v1.0_d2025_c20260819.csv.gz",
  "source_revision": "2026-08-19",
  "verified_retrieval_date": "2026-10-25",
  "upstream_sha256": "d9b46b4c6aae554723cadbb9691f3d5258371c02e530ba815d6fe41e4550149f",
  "upstream_bytes": 12585209,
  "county_subset_sha256": "c86b105395cc428ba63bbb59480a0b900e215a0a5bbd816a7e9b76f031b3efea",
  "county_subset_rows": 180,
  "original_chart_sha256": "60cfe6d052e24570e80e2ccff0e756ecb2ad6b67e170925873cb21de20eccbce",
  "definitions": "https://www.ncei.noaa.gov/pub/data/swdi/stormevents/csvfiles/Storm-Data-Bulk-csv-Format.pdf",
  "date_convention": "NOAA local standard time, MST-7",
  "preferred_filter": "Hail >= 1 inch OR Thunderstorm Wind >= 50 knots with MG/MS; county-coded; one county date after deduplication"
}