{"schemaVersion":"1.0","generatedFrom":"https://brightaifuture.com/discoveries/ecmwf-ai-weather-quest","record":{"id":"ecmwf-ai-weather-quest","headline":"The forecast competition leaves its data open.","canonicalUrl":"https://brightaifuture.com/discoveries/ecmwf-ai-weather-quest","datePublished":"2026-09-19","dateModified":null,"sourcePublicationDate":"2026-09-14","author":null,"publisher":{"name":"Bright AI Future","url":"https://brightaifuture.com/"},"topics":["open-models"],"summary":"ECMWF released JJA 2026 forecast files and regional scores for an open framework comparing AI and hybrid subseasonal weather systems.","evidenceState":"Deployed","keyFacts":[{"label":"AI’s role","value":"Participating machine-learning and hybrid systems made real-time forecasts under common rules for temperature, pressure, and precipitation."},{"label":"Documented result","value":"The public dataset covers common days 19–25 and 26–32 lead windows and publishes forecast files and regional scoring for JJA 2026."},{"label":"Important limitation","value":"Benchmark skill does not make a forecast actionable in every region."}],"limitations":["Benchmark skill does not make a forecast actionable in every region.","A single season is not long-term operational validation.","Warnings and public decisions remain institutional and human work."],"evidenceLinks":[{"title":"AI Weather Quest - Sub-seasonal forecasts","url":"https://www.ecmwf.int/en/forecasts/dataset/ai-weather-quest-sub-seasonal-forecasts","type":"dataset"},{"title":"JJA 2026 period - AI Weather Quest","url":"https://confluence.ecmwf.int/spaces/AWQ/pages/673339713/JJA%2B2026%2Bperiod","type":"dataset"}],"evidencePackUrl":"https://brightaifuture.com/evidence-pack/ecmwf-ai-weather-quest","embedUrl":"https://brightaifuture.com/embed/story/ecmwf-ai-weather-quest","attribution":{"credit":"Bright AI Future","requirements":["Link to the canonical Bright record.","Keep material limitations with the claim they qualify.","Link to the original evidence when repeating a substantive claim.","Do not describe a source check or organization-reported result as independent verification."],"sourceRights":"Linked source material, quotations, trademarks and media remain subject to their owners’ terms. No reuse right is granted for third-party media."}},"claim":{"humanProblem":"Communities and weather services need to know whether a promising model works at the lead times and in the regions they care about.","priorConstraint":"Forecast claims are hard to compare when systems use different variables, periods, and score definitions.","aiRole":"Participating machine-learning and hybrid systems made real-time forecasts under common rules for temperature, pressure, and precipitation.","documentedResult":"The public dataset covers common days 19–25 and 26–32 lead windows and publishes forecast files and regional scoring for JJA 2026.","whyItMayMatter":"Shared evaluation lets weather agencies and researchers inspect where skill appears rather than relying on a single global headline.","unresolvedQuestions":["How stable are rankings across seasons and extremes?","Which regions have too little observation data for confident scoring?","How will participating systems document revisions?"]},"evidenceAssessment":{"state":"Deployed","claimConfidence":"high","reviewState":"approved","reviewMethod":"ai-assisted","reviewNote":"AI-assisted editorial comparison with the cited primary sources, explicit evidence limits, and held alternatives. Publication authorized by the site owner on 2026-09-19; no human source review or independent replication is claimed.","lastSourceReview":"2026-09-19","independentVerification":"not-established-by-this-source-review"},"sources":[{"id":"source-awq-dataset","title":"AI Weather Quest - Sub-seasonal forecasts","url":"https://www.ecmwf.int/en/forecasts/dataset/ai-weather-quest-sub-seasonal-forecasts","type":"dataset"},{"id":"source-awq-scores","title":"JJA 2026 period - AI Weather Quest","url":"https://confluence.ecmwf.int/spaces/AWQ/pages/673339713/JJA%2B2026%2Bperiod","type":"dataset"}],"revisions":[{"id":"revision:sept26-awq-01","recordedAt":"2026-09-19","summary":"Initial open-benchmark draft.","sourceIds":["source-awq-dataset","source-awq-scores"]}],"corrections":[]}