{"ok":true,"location_name":"Rochester, NY","location":[40.7128,-74.006],"question":"briefing","answer":"**NWS Briefing (Rochester, NY):**  \nCurrent: 75.9°F (feels 75.7°F), Partly Cloudy, 54% humidity, light wind 3.4 mph. Observation from KNYC 1h 22m ago.  \n\nThis afternoon: Isolated showers/thunderstorms, high 81°F (20% chance).  \nTonight: Storms end early, then mostly clear, low 67°F.  \nTuesday: Sunny, slight storm chance afternoon, high 81°F.  \nWednesday: Sunny, 81°F. No active alerts. Seven-day range: highs 80–83°F, lows 67–72°F.  \n\nSource: NWS.","structured":{"current":{"temperature_f":75.9,"conditions":"Partly Cloudy","conditions_raw":"Partly Cloudy","sky_source":"nws_textDescription","observation_age_label":"1h 22m ago","observation_freshness":"aging","station_id":"KNYC","wind_speed_mph":3.4,"wind_direction_compass":null},"alerts":{"point_count":null,"nearby_count":null},"severe_proxy":{"method":"doc_independent","not_nws":true,"not_radiosonde":true,"not_model_grid":true,"disclaimer":"DOC independent analysis — not NWS guidance. Parameters are DOC-model estimates with hard physical caps. Not a radiosonde or official forecast. NWS is provided separately for comparison/scorekeeping only.","note":"DOC independent model with hard caps. NWS is comparison-only (see performance_vs_nws) to track if DOC outperforms official guidance.","surface_cape_jkg":900.0,"wind_shear_0_6km_ms":10.1,"supercell_composite":0.38,"significant_tornado":0.1,"tornado_probability":0.005,"severe_thunderstorm_probability":0.176,"hail_probability":0.12,"severe_risk_category":"marginal","doc_confidence":0.69,"doc_forecast":{"method":"doc_persistence_climatology_blend","next_24h_high_f":85.3,"next_24h_low_f":66.1,"precip_chance_next_24h":0.4},"performance_vs_nws":{"purpose":"Track whether DOC independent analysis outperforms NWS baseline","doc_not_derived_from_nws":true,"temperature_f":{"doc":79.3,"nws":75.9,"doc_minus_nws":3.4,"abs_error":3.4,"doc_closer_to_nws_if_abs_lt_2":false},"today_high_f":{"doc":85.3,"nws":81,"doc_minus_nws":4.3,"abs_error":4.3},"tonight_low_f":{"doc":66.1,"nws":67,"doc_minus_nws":-0.9,"abs_error":0.9},"current_temp_verdict":"doc_near_nws","note":"Lower abs_error vs NWS means DOC is closer to the official observation/forecast. This does not mean DOC *is* NWS — DOC remains independent."},"nws_comparison":{"source":"NWS","role":"comparison_baseline_only","temperature_f":75.9,"conditions":"Partly Cloudy","station_id":"KNYC","observation_age_label":"1h 22m ago","observed_at":"2026-08-24T15:51:00+00:00","humidity":53.7,"wind_speed_mph":3.4,"today_high_f":81,"tonight_low_f":67,"period_count":14}}},"citations":[{"id":"nws-obs","label":"NWS station KNYC","url":"https://api.weather.gov/stations/KNYC/observations/latest","fields":["temperature_f","humidity","wind","conditions","observed_at"]},{"id":"nws-forecast","label":"NWS gridpoint / period forecast","url":"https://forecast.weather.gov/MapClick.php?lat=40.7128&lon=-74.006","fields":["periods","hourly"]},{"id":"nws-alerts","label":"NWS active alerts","url":"https://api.weather.gov/alerts/active?point=40.7128,-74.006","fields":["alert_count","nearby_zone_alerts"]},{"id":"doc-status","label":"Weather AGI public status","url":"/status?lat=40.7128&lon=-74.006&location_name=Rochester, NY"}],"agi":{"available":true,"provider":"xai-grok","model":"grok-4.3"},"facts_used":{"current_temp_f":75.9,"observation_age":"1h 22m ago","observation_freshness":"aging","severe_context":{"method":"doc_independent","not_nws":true,"not_radiosonde":true,"not_model_grid":true,"disclaimer":"DOC independent analysis — not NWS guidance. Parameters are DOC-model estimates with hard physical caps. Not a radiosonde or official forecast. NWS is provided separately for comparison/scorekeeping only.","note":"DOC independent model with hard caps. NWS is comparison-only (see performance_vs_nws) to track if DOC outperforms official guidance.","surface_cape_jkg":900.0,"wind_shear_0_6km_ms":10.1,"supercell_composite":0.38,"significant_tornado":0.1,"tornado_probability":0.005,"severe_thunderstorm_probability":0.176,"hail_probability":0.12,"severe_risk_category":"marginal","doc_confidence":0.69,"doc_forecast":{"method":"doc_persistence_climatology_blend","next_24h_high_f":85.3,"next_24h_low_f":66.1,"precip_chance_next_24h":0.4},"performance_vs_nws":{"purpose":"Track whether DOC independent analysis outperforms NWS baseline","doc_not_derived_from_nws":true,"temperature_f":{"doc":79.3,"nws":75.9,"doc_minus_nws":3.4,"abs_error":3.4,"doc_closer_to_nws_if_abs_lt_2":false},"today_high_f":{"doc":85.3,"nws":81,"doc_minus_nws":4.3,"abs_error":4.3},"tonight_low_f":{"doc":66.1,"nws":67,"doc_minus_nws":-0.9,"abs_error":0.9},"current_temp_verdict":"doc_near_nws","note":"Lower abs_error vs NWS means DOC is closer to the official observation/forecast. This does not mean DOC *is* NWS — DOC remains independent."},"nws_comparison":{"source":"NWS","role":"comparison_baseline_only","temperature_f":75.9,"conditions":"Partly Cloudy","station_id":"KNYC","observation_age_label":"1h 22m ago","observed_at":"2026-08-24T15:51:00+00:00","humidity":53.7,"wind_speed_mph":3.4,"today_high_f":81,"tonight_low_f":67,"period_count":14}}},"source":"NWS facts + Grok synthesis","generated_at":"2026-08-24T17:12:41.954883Z"}