{"schema_version":"1.0","generated_at":"2026-10-14T19:12:15.861Z","generated_at_note":"Response generation time; source update times are recorded separately.","timezone":"America/Chicago","local_today":"2026-10-14","lake":{"name":"Cooper Lake","slug":"cooper","latitude":33.33344269,"longitude":-95.62523651,"region":"Prairies & Lakes","url":"https://www.txfishingreports.com/lake/cooper"},"requested_date":null,"availability":"available","available_dates":["2026-10-14","2026-10-15","2026-10-16","2026-10-17","2026-10-18"],"forecasts":[{"date":"2026-10-14","conditions":"Overcast","high_temp":92,"low_temp":77,"wind_speed":13,"wind_direction":"S","precipitation":0,"pressure":1014,"pressure_trend":"stable","uv_index":5,"humidity":70,"cloud_cover":40,"sunrise":"2026-10-14T07:26","sunset":"2026-10-14T18:50","moon_phase":"waxing_crescent","moon_illumination":8,"fishing_rating":"good","moonrise":"11:31 AM","moonset":"08:33 PM","moon_transit":"04:24 PM","moon_under":"04:12 AM","major1_start":"03:24 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PM","solunar_day_rating":2,"updated_at":"2026-10-14T08:33:50.301Z","kind":"weather_forecast","freshness":"fresh","citation_url":"https://www.txfishingreports.com/lake/cooper#forecast-2026-10-16"},{"date":"2026-10-17","conditions":"Overcast","high_temp":68,"low_temp":45,"wind_speed":12,"wind_direction":"NE","precipitation":0,"pressure":1030,"pressure_trend":"falling","uv_index":6,"humidity":47,"cloud_cover":12,"sunrise":"2026-10-17T07:28","sunset":"2026-10-17T18:46","moon_phase":"waxing_crescent","moon_illumination":32,"fishing_rating":"poor","moonrise":"01:58 PM","moonset":"10:59 PM","moon_transit":"06:58 PM","moon_under":"06:46 AM","major1_start":"05:58 PM","major1_stop":"07:58 PM","major2_start":"05:46 AM","major2_stop":"07:46 AM","minor1_start":"01:28 PM","minor1_stop":"02:28 PM","minor2_start":"10:29 PM","minor2_stop":"11:29 PM","solunar_day_rating":1,"updated_at":"2026-10-14T08:33:50.301Z","kind":"weather_forecast","freshness":"fresh","citation_url":"https://www.txfishingreports.com/lake/cooper#forecast-2026-10-17"},{"date":"2026-10-18","conditions":"Overcast","high_temp":74,"low_temp":46,"wind_speed":7,"wind_direction":"ESE","precipitation":0,"pressure":1024,"pressure_trend":"stable","uv_index":5,"humidity":44,"cloud_cover":9,"sunrise":"2026-10-18T07:29","sunset":"2026-10-18T18:45","moon_phase":"waxing_crescent","moon_illumination":42,"fishing_rating":"poor","moonrise":"02:37 PM","moonset":"11:56 PM","moon_transit":"07:46 PM","moon_under":"07:34 AM","major1_start":"06:46 PM","major1_stop":"08:46 PM","major2_start":"06:34 AM","major2_stop":"08:34 AM","minor1_start":"02:07 PM","minor1_stop":"03:07 PM","minor2_start":"11:26 PM","minor2_stop":"12:26 AM","solunar_day_rating":1,"updated_at":"2026-10-14T08:33:50.301Z","kind":"weather_forecast","freshness":"fresh","citation_url":"https://www.txfishingreports.com/lake/cooper#forecast-2026-10-18"}],"latest_water_observation":{"measurement_date":"2026-10-14","percent_full":67.1,"water_level_ft":434.84,"change_24hr":-0.02,"conservation_storage":173648,"conservation_capacity":258723,"conservation_pool_limit":440,"flood_pool_limit":446.2,"inflow_cfs":-31,"outflow_cfs":6,"evaporation":0.28,"precipitation":0,"surface_area":14834.81,"data_source":"TWDB","kind":"observation","is_forecast":false,"freshness":"recent","date_basis":"Provider record date; USACE imports may use collection date. Individual level and flow readings may have different timestamps."},"units":{"temperature":"degrees Fahrenheit","wind_speed":"daily maximum, miles per hour","precipitation":"daily total, inches","pressure":"hPa","water_level":"feet elevation","flow":"cubic feet per second"},"fishing_reports":{"status":"paused","source_url":"https://tpwd.texas.gov/fishboat/fish/recreational/fishreport.phtml"},"sources":[{"name":"Open-Meteo","url":"https://open-meteo.com/","supplies":"Weather forecasts"},{"name":"TWDB","url":"https://waterdatafortexas.org/reservoirs","supplies":"Dated water observations"},{"name":"Texas Fishing Reports","url":"https://www.txfishingreports.com/lake/cooper","supplies":"Aggregation and weather-based fishing ratings; solunar periods computed with SunCalc"}],"warnings":["Water levels are dated observations, not predictions for the requested day. Record dates are not verified sensor timestamps; level and flow values may have different observation times.","Fishing ratings are weather-based estimates, not firsthand catch reports or a guarantee of safe boating.","Forecast updated_at is the application collection/write time, not the upstream model issuance time. Some reservoir capacity percentages are derived estimates."],"links":{"canonical":"https://www.txfishingreports.com/lake/cooper","boat_ramps":"https://www.txfishingreports.com/lake/cooper/boat-ramps","documentation":"https://www.txfishingreports.com/data","api":"https://www.txfishingreports.com/api/v1/lakes/cooper"}}