{"date":"2026-09-12","value":66,"underlying_score":52,"descriptor":"Average","methodology":"Percentile rank vs. \u00b115-day historical window of underlying composite scores. Bands: Excellent 90+, Good 70-89, Average 30-69, Poor 10-29, Blown 0-9.","sub_indices":{"fly":66,"float":66,"erie":60,"ontario":88},"rivers_active":31,"rivers_total":31,"rivers_blown":1,"species_mode":"transition","updated_at":"2026-09-13T00:00:07+00:00"}