{"ok":true,"location_name":"Rochester, NY","location":[42.6526,-73.7562],"question":"briefing","answer":"**NWS Briefing (KALB, 21 min ago):**  \n73.9°F, Mostly Cloudy, S wind 9 mph.  \n\nThis Afternoon: 77°F, Isolated Rain Showers (20% chance).  \nTonight: 57°F, Partly Cloudy.  \nTuesday: 77°F, Scattered Showers & Thunderstorms (30%).  \nTuesday Night: 58°F, Isolated Showers then Patchy Fog.  \nWednesday: 81°F, Patchy Fog then Mostly Sunny.  \n\n7-day range: highs 77–83°F, lows 56–64°F. No active alerts. Source: NWS.","structured":{"current":{"temperature_f":73.9,"conditions":"Mostly Cloudy","conditions_raw":"Mostly Cloudy","sky_source":"nws_textDescription","observation_age_label":"21 min ago","observation_freshness":"acceptable","station_id":"KALB","wind_speed_mph":9.2,"wind_direction_compass":"S"},"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":5.5,"supercell_composite":0.21,"significant_tornado":0.04,"tornado_probability":0.001,"severe_thunderstorm_probability":0.153,"hail_probability":0.12,"severe_risk_category":"marginal","doc_confidence":0.69,"doc_forecast":{"method":"doc_persistence_climatology_blend","next_24h_high_f":82.5,"next_24h_low_f":66.9,"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":76.5,"nws":73.9,"doc_minus_nws":2.6,"abs_error":2.6,"doc_closer_to_nws_if_abs_lt_2":false},"today_high_f":{"doc":82.5,"nws":77,"doc_minus_nws":5.5,"abs_error":5.5},"tonight_low_f":{"doc":66.9,"nws":57,"doc_minus_nws":9.9,"abs_error":9.9},"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":73.9,"conditions":"Mostly Cloudy","station_id":"KALB","observation_age_label":"21 min ago","observed_at":"2026-08-24T18:51:00+00:00","humidity":null,"wind_speed_mph":9.2,"today_high_f":77,"tonight_low_f":57,"period_count":14}}},"citations":[{"id":"nws-obs","label":"NWS station KALB","url":"https://api.weather.gov/stations/KALB/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=42.6526&lon=-73.7562","fields":["periods","hourly"]},{"id":"nws-alerts","label":"NWS active alerts","url":"https://api.weather.gov/alerts/active?point=42.6526,-73.7562","fields":["alert_count","nearby_zone_alerts"]},{"id":"doc-status","label":"Weather AGI public status","url":"/status?lat=42.6526&lon=-73.7562&location_name=Rochester, NY"}],"agi":{"available":true,"provider":"xai-grok","model":"grok-4.3"},"facts_used":{"current_temp_f":73.9,"observation_age":"21 min ago","observation_freshness":"acceptable","severe_context":{"method":"doc_independent","not_nws":true,"not_radiosonde":true,"not_model_grid":true,"disclaimer":"DOC independent analysis — not NWS guidance. 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