{"station":{"icao":"ESSA","city":{"slug":"stockholm","name":"Stockholm","country":"Sweden"},"timezone":"Europe/Stockholm","lat":59.33,"lon":18.07,"us":false,"html":"https://weathermarket.io/station/ESSA","json":"https://weathermarket.io/api/station/ESSA","nwsCli":null},"date":"2026-10-19","window":{"date":"2026-10-19","timezone":"Europe/Stockholm","dayStartUtc":"2026-10-18T22:00:00.000Z","dayEndUtc":"2026-10-19T22:00:00.000Z","utcOffsetStart":"+02:00","utcOffsetEnd":"+02:00","hours":24},"complete":true,"values":{"tmax":7,"tmaxAt":"2026-10-19T13:20:00.000Z","tmin":-3,"tminAt":"2026-10-19T00:50:00.000Z","tavg":0.7,"humidityMean":93.8,"windMean":1.2,"windMax":2.6,"windMaxAt":"2026-10-19T11:50:00.000Z","precipObservedCount":0,"nObservations":48,"maxGapMinutes":30,"units":{"temperature":"°C","wind":"m/s","humidity":"%"},"source":"Extremes over the METAR observations listed in this record (hourly plus special reports) - the same record values.metarDerived carries in /api/station/{icao}/daily"},"extremes":{"tmax":{"obsTimeUtc":"2026-10-19T13:20:00.000Z","obsTimeLocal":"2026-10-19T15:20:00+02:00","metarType":"METAR","raw":"METAR ESSA 191320Z 25003KT 220V280 CAVOK 07/03 Q1038 NOSIG","temp":7,"dewpoint":3,"humidity":76,"wind":1.5,"precipObserved":false,"correctedAt":null,"originalRaw":null},"tmin":{"obsTimeUtc":"2026-10-19T00:50:00.000Z","obsTimeLocal":"2026-10-19T02:50:00+02:00","metarType":"METAR","raw":"METAR ESSA 190050Z 28002KT 1200 BR NSC M03/M03 Q1038 TEMPO 2000 BCFG","temp":-3,"dewpoint":-3,"humidity":100,"wind":1,"precipObserved":false,"correctedAt":null,"originalRaw":null},"windMax":{"obsTimeUtc":"2026-10-19T11:50:00.000Z","obsTimeLocal":"2026-10-19T13:50:00+02:00","metarType":"METAR","raw":"METAR ESSA 191150Z 32005KT 300V360 9999 FEW014 06/04 Q1039 NOSIG","temp":6,"dewpoint":4,"humidity":87,"wind":2.6,"precipObserved":false,"correctedAt":null,"originalRaw":null}},"finality":{"status":"final","finalAt":"2026-10-20T01:00:00.000Z","settleable":true,"coverage":{"ok":true,"maxGapMinutes":30,"normalIntervalMin":30,"thresholdMinutes":60},"reasons":[],"holdHours":3},"revision":"f82b9aee463e2a2c","lastChangedAt":"2026-10-19T21:54:40.895Z","corrections":[{"obsTimeUtc":"2026-10-19T03:50:00.000Z","correctedAt":"2026-10-19T03:57:38.197Z","original":"METAR ESSA 190350Z COR 00000KT 1100 R01L/P2000N R19R/P2000N R01R/P2000N R19L/P2000N BR NSC M03/M03 Q1038 TEMPO 1200 BCFG","corrected":"METAR ESSA 190350Z 00000KT 1100 R01L/P2000N R19R/P2000N R01R/P2000N R19L/P2000N BR NSC M03/M03 Q1038 TEMPO 1200 BCFG"},{"obsTimeUtc":"2026-10-19T04:20:00.000Z","correctedAt":"2026-10-19T04:26:39.710Z","original":"METAR ESSA 190420Z COR 00000KT 1100 R01L/P2000N R19R/P2000N R01R/P2000N R19L/P2000N BCFG NSC M03/M03 Q1038 TEMPO 1200 BCFG","corrected":"METAR ESSA 190420Z 00000KT 1100 R01L/P2000N R19R/P2000N R01R/P2000N R19L/P2000N BCFG NSC M03/M03 Q1038 TEMPO 1200 BCFG"}],"anchor":{"contract":"0x2B59812947B48B5988FaA805a9514a5162415091","chainId":14,"record":"https://weathermarket.io/api/station/ESSA/2026-10-19?format=record","status":"anchored","sha256":"e22e75c6529202c4dfd6723929a36acb8355ab2cc58e3ac96fd17a6c38d626ec","revision":"f82b9aee463e2a2c","flareTxHash":"0xbb2acbf9922e24bc0a19a6278fb5a0d87fe7423f6c8289bf868149f12331e3ea","flareBlock":72519439,"anchoredAt":"2026-10-20T01:03:32.325Z","explorer":"https://flare-explorer.flare.network/tx/0xbb2acbf9922e24bc0a19a6278fb5a0d87fe7423f6c8289bf868149f12331e3ea","matchesCurrent":true,"note":"GET the record bytes, SHA-256 them, and call SnapshotAnchor.isAnchored(sha256) on Flare - the anchored record is the one to settle on"},"qc":{"summary":{"good":48,"suspect":0,"bad":0,"flagged":[]},"extremes":{"tmax":{"obsTimeUtc":"2026-10-19T13:20:00.000Z","flag":"good","reasons":[]},"tmin":{"obsTimeUtc":"2026-10-19T00:50:00.000Z","flag":"good","reasons":[]},"anyFlagged":false},"excludingBad":{"tmax":7,"tmin":-3,"differsFromRecord":false},"note":"Flags are attached beside the anchored record and are not part of its bytes; the record's extremes are unchanged. 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2000","temp":-1,"dewpoint":-2,"humidity":93,"wind":1.5,"precipObserved":false,"correctedAt":null,"originalRaw":null},{"obsTimeUtc":"2026-10-19T21:50:00.000Z","obsTimeLocal":"2026-10-19T23:50:00+02:00","metarType":"METAR","raw":"METAR ESSA 192150Z VRB03KT 9999 BCFG NSC M02/M02 Q1037 TEMPO 2000","temp":-2,"dewpoint":-2,"humidity":100,"wind":1.5,"precipObserved":false,"correctedAt":null,"originalRaw":null}],"about":{"record":"Station-day record: the daily extremes over every METAR observation (hourly plus special reports) received for the station's local calendar day - local midnight to local midnight, daylight saving applied. Temperatures are whole degrees Celsius as reported in METAR; a short-lived peak between reports can be missed. This is not a model or an aggregate - every value points at the report that produced it, and every report in the day is listed verbatim.","settlementRule":"The settlement value is the daily maximum (or minimum) of this record once it is final: the local day has ended and the 3-hour correction hold has passed. A day whose longest gap between reports exceeds the station's normal interval plus 30 minutes is final but flagged not settleable - a market should treat it as a review case. Once final, the canonical record bytes are hashed (SHA-256) and the hash is written to the SnapshotAnchor contract on Flare; the anchored record is the settlement record even if reports change afterwards (matchesCurrent then reads false).","verify":["Every METAR in the day is listed with its raw text; compare it with the independent archives linked under links.external (IEM ASOS archive, Ogimet).","GET links.record for the canonical record bytes, SHA-256 them and compare with anchor.sha256; call SnapshotAnchor.isAnchored(sha256) on Flare (anchor.contract, anchor.chainId) to confirm the hash is on-chain. anchor.explorer opens the anchoring transaction.","Permalink pattern for market rules: https://weathermarket.io/station/ESSA/YYYY-MM-DD (HTML) and https://weathermarket.io/api/station/ESSA/YYYY-MM-DD (JSON)."],"citation":"Settlement source: the METAR-derived station-day record for ESSA for the contract date (station-local calendar day), as published at https://weathermarket.io/station/ESSA/YYYY-MM-DD with every observation used, the finality status and the Flare anchor of the record. The daily value is the extreme over the hourly and special METAR reports in that day; a short-lived peak between reports may be missed. If the record is not final and settleable by the resolution deadline, the market is flagged for review."},"links":{"html":"https://weathermarket.io/station/ESSA/2026-10-19","json":"https://weathermarket.io/api/station/ESSA/2026-10-19","record":"https://weathermarket.io/api/station/ESSA/2026-10-19?format=record","prev":"https://weathermarket.io/station/ESSA/2026-10-18","next":"https://weathermarket.io/station/ESSA/2026-10-20","station":"https://weathermarket.io/station/ESSA","external":{"iem":"https://mesonet.agron.iastate.edu/cgi-bin/request/asos.py?station=ESSA&data=metar&year1=2026&month1=10&day1=18&year2=2026&month2=10&day2=20&tz=Etc%2FUTC&format=onlycomma&latlon=no&elev=no&missing=M&trace=T&direct=no&report_type=3&report_type=4","ogimet":"https://www.ogimet.com/display_metars2.php?lang=en&lugar=ESSA&tipo=SA&ord=REV&nil=SI&fmt=html&ano=2026&mes=10&day=18&hora=22&anof=2026&mesf=10&dayf=19&horaf=21&minf=59&send=send","awcLive":"https://aviationweather.gov/data/metar/?ids=ESSA"}}}