{"station":{"icao":"LTFM","city":{"slug":"istanbul","name":"Istanbul","country":"Türkiye"},"timezone":"Europe/Istanbul","lat":41.01,"lon":28.98,"us":false,"html":"https://weathermarket.io/station/LTFM","json":"https://weathermarket.io/api/station/LTFM","nwsCli":null},"date":"2026-10-03","window":{"date":"2026-10-03","timezone":"Europe/Istanbul","dayStartUtc":"2026-10-02T21:00:00.000Z","dayEndUtc":"2026-10-03T21:00:00.000Z","utcOffsetStart":"+03:00","utcOffsetEnd":"+03:00","hours":24},"complete":true,"values":{"tmax":19,"tmaxAt":"2026-10-03T07:50:00.000Z","tmin":15,"tminAt":"2026-10-03T02:20:00.000Z","tavg":17.4,"humidityMean":63.4,"windMean":10.8,"windMax":13.4,"windMaxAt":"2026-10-03T02:50:00.000Z","precipObservedCount":4,"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":"2026-10-03T07:50:00.000Z","obsTimeLocal":"2026-10-03T10:50:00+03:00","metarType":"METAR","raw":"METAR LTFM 030750Z 05023KT 9999 BKN028 19/08 Q1028 NOSIG","temp":19,"dewpoint":8,"humidity":49,"wind":11.8,"precipObserved":false,"correctedAt":null,"originalRaw":null},"tmin":{"obsTimeUtc":"2026-10-03T02:20:00.000Z","obsTimeLocal":"2026-10-03T05:20:00+03:00","metarType":"METAR","raw":"METAR LTFM 030220Z 04019KT 6000 -SHRA BKN025 15/13 Q1026 NOSIG","temp":15,"dewpoint":13,"humidity":88,"wind":9.8,"precipObserved":true,"correctedAt":null,"originalRaw":null},"windMax":{"obsTimeUtc":"2026-10-03T02:50:00.000Z","obsTimeLocal":"2026-10-03T05:50:00+03:00","metarType":"METAR","raw":"METAR LTFM 030250Z 04026KT 9999 -SHRA BKN025 17/12 Q1026 NOSIG","temp":17,"dewpoint":12,"humidity":72,"wind":13.4,"precipObserved":true,"correctedAt":null,"originalRaw":null}},"finality":{"status":"final","finalAt":"2026-10-04T00:00:00.000Z","settleable":true,"coverage":{"ok":true,"maxGapMinutes":30,"normalIntervalMin":30,"thresholdMinutes":60},"reasons":[],"holdHours":3},"revision":"6bc792261497f794","lastChangedAt":"2026-10-03T20:55:40.159Z","corrections":[],"anchor":{"contract":"0x2B59812947B48B5988FaA805a9514a5162415091","chainId":14,"record":"https://weathermarket.io/api/station/LTFM/2026-10-03?format=record","status":"anchored","sha256":"c3adcbc904557b948c2240b6ec0554bc74c440316757d0e46c81dec250c85292","revision":"6bc792261497f794","flareTxHash":"0x987d7e3ed409d32fe01d31c54e8f9434dc7f085eb5b1fbdcdb25c7029b03a702","flareBlock":71259746,"anchoredAt":"2026-10-04T00:02:23.139Z","explorer":"https://flare-explorer.flare.network/tx/0x987d7e3ed409d32fe01d31c54e8f9434dc7f085eb5b1fbdcdb25c7029b03a702","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":"2026-10-03T07:50:00.000Z","flag":"good","reasons":[]},"tmin":{"obsTimeUtc":"2026-10-03T02:20:00.000Z","flag":"good","reasons":[]},"anyFlagged":false},"excludingBad":{"tmax":19,"tmin":15,"differsFromRecord":false},"note":"Flags are attached beside the anchored record and are not part of its bytes; the record's extremes are unchanged. A suspect extreme is usable but worth checking against the raw text (extremes.*.reasons); a bad report is physically impossible and excludingBad shows the extremes without it."},"official":null,"observations":[{"obsTimeUtc":"2026-10-02T21:20:00.000Z","obsTimeLocal":"2026-10-03T00:20:00+03:00","metarType":"METAR","raw":"METAR LTFM 022120Z 04025KT 9999 BKN025 17/11 Q1026 NOSIG","temp":17,"dewpoint":11,"humidity":68,"wind":12.9,"precipObserved":false,"correctedAt":null,"originalRaw":null},{"obsTimeUtc":"2026-10-02T21:50:00.000Z","obsTimeLocal":"2026-10-03T00:50:00+03:00","metarType":"METAR","raw":"METAR LTFM 022150Z 04023KT 9999 BKN025 17/11 Q1026 NOSIG","temp":17,"dewpoint":11,"humidity":68,"wind":11.8,"precipObserved":false,"correctedAt":null,"originalRaw":null},{"obsTimeUtc":"2026-10-02T22:20:00.000Z","obsTimeLocal":"2026-10-03T01:20:00+03:00","metarType":"METAR","raw":"METAR LTFM 022220Z 04021KT 9999 BKN025 17/11 Q1027 NOSIG","temp":17,"dewpoint":11,"humidity":68,"wind":10.8,"precipObserved":false,"correctedAt":null,"originalRaw":null},{"obsTimeUtc":"2026-10-02T22:50:00.000Z","obsTimeLocal":"2026-10-03T01:50:00+03:00","metarType":"METAR","raw":"METAR LTFM 022250Z 04022KT 9999 BKN025 17/10 Q1026 NOSIG","temp":17,"dewpoint":10,"humidity":63,"wind":11.3,"precipObserved":false,"correctedAt":null,"originalRaw":null},{"obsTimeUtc":"2026-10-02T23:20:00.000Z","obsTimeLocal":"2026-10-03T02:20:00+03:00","metarType":"METAR","raw":"METAR LTFM 022320Z 04020KT 9999 BKN025 18/10 Q1026 NOSIG","temp":18,"dewpoint":10,"humidity":60,"wind":10.3,"precipObserved":false,"correctedAt":null,"originalRaw":null},{"obsTimeUtc":"2026-10-02T23:50:00.000Z","obsTimeLocal":"2026-10-03T02:50:00+03:00","metarType":"METAR","raw":"METAR LTFM 022350Z 04020KT 9999 BKN025 17/10 Q1027 NOSIG","temp":17,"dewpoint":10,"humidity":63,"wind":10.3,"precipObserved":false,"correctedAt":null,"originalRaw":null},{"obsTimeUtc":"2026-10-03T00:20:00.000Z","obsTimeLocal":"2026-10-03T03:20:00+03:00","metarType":"METAR","raw":"METAR LTFM 030020Z 04020KT 9999 BKN025 17/10 Q1026 NOSIG","temp":17,"dewpoint":10,"humidity":63,"wind":10.3,"precipObserved":false,"correctedAt":null,"originalRaw":null},{"obsTimeUtc":"2026-10-03T00:50:00.000Z","obsTimeLocal":"2026-10-03T03:50:00+03:00","metarType":"METAR","raw":"METAR LTFM 030050Z 04021KT 9999 BKN025 17/09 Q1026 NOSIG","temp":17,"dewpoint":9,"humidity":59,"wind":10.8,"precipObserved":false,"correctedAt":null,"originalRaw":null},{"obsTimeUtc":"2026-10-03T01:20:00.000Z","obsTimeLocal":"2026-10-03T04:20:00+03:00","metarType":"METAR","raw":"METAR LTFM 030120Z 04022KT 9999 BKN025 17/11 Q1026 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NOSIG","temp":19,"dewpoint":11,"humidity":60,"wind":10.8,"precipObserved":false,"correctedAt":null,"originalRaw":null},{"obsTimeUtc":"2026-10-03T12:20:00.000Z","obsTimeLocal":"2026-10-03T15:20:00+03:00","metarType":"METAR","raw":"METAR LTFM 031220Z 04023KT 9999 BKN032 18/10 Q1028 NOSIG","temp":18,"dewpoint":10,"humidity":60,"wind":11.8,"precipObserved":false,"correctedAt":null,"originalRaw":null},{"obsTimeUtc":"2026-10-03T12:50:00.000Z","obsTimeLocal":"2026-10-03T15:50:00+03:00","metarType":"METAR","raw":"METAR LTFM 031250Z 04021KT 9999 BKN028 19/10 Q1028 NOSIG","temp":19,"dewpoint":10,"humidity":56,"wind":10.8,"precipObserved":false,"correctedAt":null,"originalRaw":null},{"obsTimeUtc":"2026-10-03T13:20:00.000Z","obsTimeLocal":"2026-10-03T16:20:00+03:00","metarType":"METAR","raw":"METAR LTFM 031320Z 04020KT 9999 BKN028 18/10 Q1028 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NOSIG","temp":18,"dewpoint":10,"humidity":60,"wind":10.8,"precipObserved":false,"correctedAt":null,"originalRaw":null},{"obsTimeUtc":"2026-10-03T15:20:00.000Z","obsTimeLocal":"2026-10-03T18:20:00+03:00","metarType":"METAR","raw":"METAR LTFM 031520Z 05022KT 9999 BKN032 18/11 Q1028 NOSIG","temp":18,"dewpoint":11,"humidity":64,"wind":11.3,"precipObserved":false,"correctedAt":null,"originalRaw":null},{"obsTimeUtc":"2026-10-03T15:50:00.000Z","obsTimeLocal":"2026-10-03T18:50:00+03:00","metarType":"METAR","raw":"METAR LTFM 031550Z 05020KT 9999 BKN032 18/10 Q1028 NOSIG","temp":18,"dewpoint":10,"humidity":60,"wind":10.3,"precipObserved":false,"correctedAt":null,"originalRaw":null},{"obsTimeUtc":"2026-10-03T16:20:00.000Z","obsTimeLocal":"2026-10-03T19:20:00+03:00","metarType":"METAR","raw":"METAR LTFM 031620Z 05018KT 9999 SCT030 17/10 Q1028 NOSIG","temp":17,"dewpoint":10,"humidity":63,"wind":9.3,"precipObserved":false,"correctedAt":null,"originalRaw":null},{"obsTimeUtc":"2026-10-03T16:50:00.000Z","obsTimeLocal":"2026-10-03T19:50:00+03:00","metarType":"METAR","raw":"METAR LTFM 031650Z 05017KT 9999 SCT030 18/10 Q1029 NOSIG","temp":18,"dewpoint":10,"humidity":60,"wind":8.7,"precipObserved":false,"correctedAt":null,"originalRaw":null},{"obsTimeUtc":"2026-10-03T17:20:00.000Z","obsTimeLocal":"2026-10-03T20:20:00+03:00","metarType":"METAR","raw":"METAR LTFM 031720Z 06016KT 9999 SCT030 17/11 Q1029 NOSIG","temp":17,"dewpoint":11,"humidity":68,"wind":8.2,"precipObserved":false,"correctedAt":null,"originalRaw":null},{"obsTimeUtc":"2026-10-03T17:50:00.000Z","obsTimeLocal":"2026-10-03T20:50:00+03:00","metarType":"METAR","raw":"METAR LTFM 031750Z 05016KT 9999 SCT030 17/10 Q1029 NOSIG","temp":17,"dewpoint":10,"humidity":63,"wind":8.2,"precipObserved":false,"correctedAt":null,"originalRaw":null},{"obsTimeUtc":"2026-10-03T18:20:00.000Z","obsTimeLocal":"2026-10-03T21:20:00+03:00","metarType":"METAR","raw":"METAR LTFM 031820Z 06018KT 9999 SCT030 17/10 Q1029 NOSIG","temp":17,"dewpoint":10,"humidity":63,"wind":9.3,"precipObserved":false,"correctedAt":null,"originalRaw":null},{"obsTimeUtc":"2026-10-03T18:50:00.000Z","obsTimeLocal":"2026-10-03T21:50:00+03:00","metarType":"METAR","raw":"METAR LTFM 031850Z 05018KT 9999 SCT030 17/10 Q1029 NOSIG","temp":17,"dewpoint":10,"humidity":63,"wind":9.3,"precipObserved":false,"correctedAt":null,"originalRaw":null},{"obsTimeUtc":"2026-10-03T19:20:00.000Z","obsTimeLocal":"2026-10-03T22:20:00+03:00","metarType":"METAR","raw":"METAR LTFM 031920Z 06017KT 9999 SCT030 17/10 Q1029 NOSIG","temp":17,"dewpoint":10,"humidity":63,"wind":8.7,"precipObserved":false,"correctedAt":null,"originalRaw":null},{"obsTimeUtc":"2026-10-03T19:50:00.000Z","obsTimeLocal":"2026-10-03T22:50:00+03:00","metarType":"METAR","raw":"METAR LTFM 031950Z 06016KT 9999 SCT030 17/10 Q1029 NOSIG","temp":17,"dewpoint":10,"humidity":63,"wind":8.2,"precipObserved":false,"correctedAt":null,"originalRaw":null},{"obsTimeUtc":"2026-10-03T20:20:00.000Z","obsTimeLocal":"2026-10-03T23:20:00+03:00","metarType":"METAR","raw":"METAR LTFM 032020Z 06017KT 9999 SCT030 17/09 Q1029 NOSIG","temp":17,"dewpoint":9,"humidity":59,"wind":8.7,"precipObserved":false,"correctedAt":null,"originalRaw":null},{"obsTimeUtc":"2026-10-03T20:50:00.000Z","obsTimeLocal":"2026-10-03T23:50:00+03:00","metarType":"METAR","raw":"METAR LTFM 032050Z 06018KT 9999 SCT030 16/09 Q1029 NOSIG","temp":16,"dewpoint":9,"humidity":63,"wind":9.3,"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/LTFM/YYYY-MM-DD (HTML) and https://weathermarket.io/api/station/LTFM/YYYY-MM-DD (JSON)."],"citation":"Settlement source: the METAR-derived station-day record for LTFM for the contract date (station-local calendar day), as published at https://weathermarket.io/station/LTFM/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/LTFM/2026-10-03","json":"https://weathermarket.io/api/station/LTFM/2026-10-03","record":"https://weathermarket.io/api/station/LTFM/2026-10-03?format=record","prev":"https://weathermarket.io/station/LTFM/2026-10-02","next":"https://weathermarket.io/station/LTFM/2026-10-04","station":"https://weathermarket.io/station/LTFM","external":{"iem":"https://mesonet.agron.iastate.edu/cgi-bin/request/asos.py?station=LTFM&data=metar&year1=2026&month1=10&day1=2&year2=2026&month2=10&day2=4&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=LTFM&tipo=SA&ord=REV&nil=SI&fmt=html&ano=2026&mes=10&day=2&hora=21&anof=2026&mesf=10&dayf=3&horaf=20&minf=59&send=send","awcLive":"https://aviationweather.gov/data/metar/?ids=LTFM"}}}