{"ok":true,"location_name":"Rochester, NY","location":[43.0481,-76.1474],"question":"briefing","answer":"**Rochester, NY (KSYR) Briefing – NWS**\n\nNow: 71.6°F (feels 71°F), Cloudy. Humidity 53%, SSW wind 11.5 mph. Observation 22 min ago.\n\nThis Afternoon: 71°F, Scattered showers and thunderstorms. Mostly cloudy, SW wind ~9 mph. 50% chance precip.\n\nTonight: 59°F, Scattered showers/thunderstorms early, then chance. Mostly cloudy, SW 6–9 mph. 60% chance.\n\nTuesday: 74°F, Chance showers/thunderstorms. Mostly cloudy, W wind 9 mph. 70% chance.\n\nTuesday Night: 57°F, Isolated showers early, then mostly cloudy. W 2–8 mph. 20% chance.\n\nNo active alerts. 7-day range: 57–86°F. (NWS)","structured":{"current":{"temperature_f":71.6,"conditions":"Cloudy","conditions_raw":"Cloudy","sky_source":"nws_textDescription","observation_age_label":"22 min ago","observation_freshness":"acceptable","station_id":"KSYR","wind_speed_mph":11.5,"wind_direction_compass":"SSW"},"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":825.4,"wind_shear_0_6km_ms":10.2,"supercell_composite":0.35,"significant_tornado":0.09,"tornado_probability":0.005,"severe_thunderstorm_probability":0.166,"hail_probability":0.11,"severe_risk_category":"marginal","doc_confidence":0.69,"doc_forecast":{"method":"doc_persistence_climatology_blend","next_24h_high_f":76.6,"next_24h_low_f":61.0,"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":69.0,"nws":71.6,"doc_minus_nws":-2.6,"abs_error":2.6,"doc_closer_to_nws_if_abs_lt_2":false},"today_high_f":{"doc":76.6,"nws":71,"doc_minus_nws":5.6,"abs_error":5.6},"tonight_low_f":{"doc":61.0,"nws":59,"doc_minus_nws":2.0,"abs_error":2.0},"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":71.6,"conditions":"Cloudy","station_id":"KSYR","observation_age_label":"22 min ago","observed_at":"2026-08-24T18:35:00+00:00","humidity":53.1,"wind_speed_mph":11.5,"today_high_f":71,"tonight_low_f":59,"period_count":14}}},"citations":[{"id":"nws-obs","label":"NWS station KSYR","url":"https://api.weather.gov/stations/KSYR/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=43.0481&lon=-76.1474","fields":["periods","hourly"]},{"id":"nws-alerts","label":"NWS active alerts","url":"https://api.weather.gov/alerts/active?point=43.0481,-76.1474","fields":["alert_count","nearby_zone_alerts"]},{"id":"doc-status","label":"Weather AGI public status","url":"/status?lat=43.0481&lon=-76.1474&location_name=Rochester, NY"}],"agi":{"available":true,"provider":"xai-grok","model":"grok-4.3"},"facts_used":{"current_temp_f":71.6,"observation_age":"22 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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NWS is comparison-only (see performance_vs_nws) to track if DOC outperforms official guidance.","surface_cape_jkg":825.4,"wind_shear_0_6km_ms":10.2,"supercell_composite":0.35,"significant_tornado":0.09,"tornado_probability":0.005,"severe_thunderstorm_probability":0.166,"hail_probability":0.11,"severe_risk_category":"marginal","doc_confidence":0.69,"doc_forecast":{"method":"doc_persistence_climatology_blend","next_24h_high_f":76.6,"next_24h_low_f":61.0,"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":69.0,"nws":71.6,"doc_minus_nws":-2.6,"abs_error":2.6,"doc_closer_to_nws_if_abs_lt_2":false},"today_high_f":{"doc":76.6,"nws":71,"doc_minus_nws":5.6,"abs_error":5.6},"tonight_low_f":{"doc":61.0,"nws":59,"doc_minus_nws":2.0,"abs_error":2.0},"current_temp_verdict":"doc_near_nws","note":"Lower abs_error vs NWS means DOC is closer to the official observation/forecast. 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