Station-day record · settlement source
Istanbul · Europe/Istanbul · ← 2026-10-11 · 2026-10-13 → · All dates for LTFM · JSON
METAR LTFM 120820Z 35004KT 290V030 CAVOK 23/12 Q1012 NOSIG RMK RWY17L 31004KT 260V010 RWY34L 32004KT 260V020 RWY16R 35004KT 300V020 RWY36 35003KT 260V050 RWY18 32005G20KT 280V090
METAR LTFM 120250Z 17003KT 140V200 CAVOK 16/10 Q1010 NOSIG
Local day 2026-10-11 17:00 EDT → 2026-10-12 17:00 EDT (24 h, UTC+03:00) · 48 reports · longest gap 30 min
final at 2026-10-12 20:00 EDT · correction hold 3 h after local midnight
longest gap 30 min · limit 60 min
6 report(s) in this day were re-issued after first publication; the original text is shown struck through in the table.
SHA-256 a736b8991c5ece8366187274cea16284fb5e1fce59aa58bfeeb3de38199d5674
Transaction 0x40c5255b94cded18a1f5fa1b47a7d091166daa7875295c16df2f546603b37d30 · 2026-10-12 20:01 EDT
GET the record bytes, SHA-256 them, and call SnapshotAnchor.isAnchored(sha256) on Flare - the anchored record is the one to settle on
Canonical record bytes (hash these) · SnapshotAnchor 0x2B598129… (chain 14)
good 48 · suspect 0 · bad 0 · High good · Low good
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.
| Time | Type | Temp °C | Dew °C | Wind m/s | Raw report |
|---|---|---|---|---|---|
| 2026-10-11 17:20 EDT | METAR | 20° | 8° | 2.6 | METAR LTFM 112120Z 27005KT 250V330 CAVOK 20/08 Q1010 NOSIG |
| 2026-10-11 17:50 EDT | METAR | 20° | 8° | 2.6 | METAR LTFM 112150Z VRB05KT CAVOK 20/08 Q1010 NOSIG |
| 2026-10-11 18:20 EDT | METAR | 21° | 7° | 1.5 | METAR LTFM 112220Z 24003KT 210V310 CAVOK 21/07 Q1010 NOSIG |
| 2026-10-11 18:50 EDT | METAR | 17° | 8° | 2.1 | METAR LTFM 112250Z VRB04KT CAVOK 17/08 Q1010 NOSIG |
| 2026-10-11 19:20 EDT | METAR | 20° | 9° | 2.6 | METAR LTFM 112320Z 22005KT 150V300 CAVOK 20/09 Q1010 NOSIG |
| 2026-10-11 19:50 EDT | METAR | 18° | 10° | 2.1 | METAR LTFM 112350Z 20004KT 140V270 CAVOK 18/10 Q1010 NOSIG |
| 2026-10-11 20:20 EDT | METAR | 17° | 10° | 1.5 | METAR LTFM 120020Z 17003KT 110V230 CAVOK 17/10 Q1009 NOSIG |
| 2026-10-11 20:50 EDT | METAR | 17° | 10° | 2.1 | METAR LTFM 120050Z 20004KT 130V260 CAVOK 17/10 Q1009 NOSIG |
| 2026-10-11 21:20 EDT | METAR | 17° | 10° | 1 | METAR LTFM 120120Z VRB02KT CAVOK 17/10 Q1009 NOSIG |
| 2026-10-11 21:50 EDT | METAR | 17° | 11° | 2.1 | METAR LTFM 120150Z 18004KT 120V250 CAVOK 17/11 Q1009 NOSIG |
| 2026-10-11 22:20 EDT | METAR | 18° | 10° | 1 | METAR LTFM 120220Z VRB02KT CAVOK 18/10 Q1010 NOSIG |
| 2026-10-11 22:50 EDT | METAR | 16°min | 10° | 1.5 | METAR LTFM 120250Z 17003KT 140V200 CAVOK 16/10 Q1010 NOSIG |
| 2026-10-11 23:20 EDT | METAR | 16° | 10° | 2.6 | METAR LTFM 120320Z 19005KT 160V260 CAVOK 16/10 Q1010 NOSIG |
| 2026-10-11 23:50 EDT | METAR | 16° | 11° | 2.1 | METAR LTFM 120350Z 21004KT CAVOK 16/11 Q1010 NOSIG |
| 2026-10-12 00:20 EDT | METAR | 16° | 11° | 2.1 | METAR LTFM 120420Z 20004KT CAVOK 16/11 Q1011 NOSIG |
| 2026-10-12 00:50 EDT | METAR | 17° | 11° | 2.6 | METAR LTFM 120450Z 21005KT 180V250 CAVOK 17/11 Q1011 NOSIG |
| 2026-10-12 01:20 EDT | METAR | 17° | 11° | 1.5 | METAR LTFM 120520Z 19003KT 150V220 CAVOK 17/11 Q1011 NOSIG |
| 2026-10-12 01:50 EDT | METAR | 17° | 11° | 2.1 | METAR LTFM 120550Z 20004KT 140V230 CAVOK 17/11 Q1011 NOSIG |
| 2026-10-12 02:20 EDT | METAR | 20° | 11° | 1.5 | METAR LTFM 120620Z 28003KT 210V010 CAVOK 20/11 Q1011 NOSIG |
| 2026-10-12 02:50 EDT | METAR | 21° | 11° | 2.1 | METAR LTFM 120650Z 31004KT 240V350 CAVOK 21/11 Q1012 NOSIG RMK RWY17L 28004KT RWY34L 30004G14KT 260V340 RWY16R 26003KT 230V300 RWY36 30003KT 270V330 RWY18 29005KT 270V030 original: METAR LTFM 120650Z 31004KT 240V350 CAVOK 21/11 Q1012 NOSIG |
| 2026-10-12 03:20 EDT | METAR | 22° | 12° | 1.5 | METAR LTFM 120720Z VRB03KT CAVOK 22/12 Q1012 NOSIG RMK RWY17L VRB02KT RWY34L VRB02KT RWY16R VRB01KT RWY36 VRB02KT RWY18 VRB03KT original: METAR LTFM 120720Z VRB03KT CAVOK 22/12 Q1012 NOSIG |
| 2026-10-12 03:50 EDT | METAR | 22° | 11° | 2.1 | METAR LTFM 120750Z 34004KT 270V080 CAVOK 22/11 Q1012 NOSIG RMK RWY17L VRB03KT RWY34L 35004KT 300V060 RWY16R 32003KT 280V360 RWY36 VRB02KT RWY18 VRB03KT original: METAR LTFM 120750Z 34004KT 270V080 CAVOK 22/11 Q1012 NOSIG |
| 2026-10-12 04:20 EDT | METAR | 23°max | 12° | 2.1 | METAR LTFM 120820Z 35004KT 290V030 CAVOK 23/12 Q1012 NOSIG RMK RWY17L 31004KT 260V010 RWY34L 32004KT 260V020 RWY16R 35004KT 300V020 RWY36 35003KT 260V050 RWY18 32005G20KT 280V090 original: METAR LTFM 120820Z 35004KT 290V030 CAVOK 23/12 Q1012 NOSIG |
| 2026-10-12 04:50 EDT | METAR | 23° | 13° | 3.1 | METAR LTFM 120850Z 36006KT 290V040 CAVOK 23/13 Q1012 NOSIG RMK RWY17L 35009KT RWY34L 32006KT 280V010 RWY16R 35007KT RWY36 36008KT RWY18 34009KT original: METAR LTFM 120850Z 36006KT 290V040 CAVOK 23/13 Q1012 NOSIG |
| 2026-10-12 05:20 EDT | METAR | 22° | 15° | 4.6 | METAR LTFM 120920Z 34009KT 310V010 CAVOK 22/15 Q1012 NOSIG RMK RWY17L 34010KT RWY34L 33009KT 280V350 RWY16R 35008KT RWY36 35010KT RWY18 34011KT original: METAR LTFM 120920Z 34009KT 310V010 CAVOK 22/15 Q1012 NOSIG |
| 2026-10-12 05:50 EDT | METAR | 22° | 15° | 4.6 | METAR LTFM 120950Z 34009KT CAVOK 22/15 Q1012 NOSIG |
| 2026-10-12 06:20 EDT | METAR | 22° | 16° | 5.1 | METAR LTFM 121020Z 34010KT 9999 FEW025 BKN180 22/16 Q1012 NOSIG |
| 2026-10-12 06:50 EDT | METAR | 22° | 16° | 5.7 | METAR LTFM 121050Z 35011KT 310V010 9999 FEW025 BKN180 22/16 Q1011 NOSIG |
| 2026-10-12 07:20 EDT | METAR | 22° | 16° | 5.7 | METAR LTFM 121120Z 36011KT 9999 FEW025 BKN180 22/16 Q1011 NOSIG |
| 2026-10-12 07:50 EDT | METAR | 21° | 17° | 5.7 | METAR LTFM 121150Z 35011KT 9999 FEW025 BKN180 21/17 Q1011 NOSIG |
| 2026-10-12 08:20 EDT | METAR | 21° | 18° | 5.7 | METAR LTFM 121220Z 36011KT 330V030 9999 FEW012 SCT022 BKN180 21/18 Q1012 NOSIG |
| 2026-10-12 08:50 EDT | METAR | 21° | 18° | 4.6 | METAR LTFM 121250Z 01009KT 9999 FEW011 SCT025 21/18 Q1012 NOSIG |
| 2026-10-12 09:20 EDT | METAR | 20° | 17° | 5.1 | METAR LTFM 121320Z 36010KT 320V020 9999 FEW011 SCT025 20/17 Q1011 NOSIG |
| 2026-10-12 09:50 EDT | METAR | 20° | 17° | 5.7 | METAR LTFM 121350Z 02011KT 9999 FEW011 SCT025 20/17 Q1011 NOSIG |
| 2026-10-12 10:20 EDT | METAR | 20° | 18° | 5.1 | METAR LTFM 121420Z 01010KT 9999 SCT011 SCT025 20/18 Q1011 NOSIG |
| 2026-10-12 10:50 EDT | METAR | 20° | 18° | 5.1 | METAR LTFM 121450Z 01010KT 9999 SCT008 BKN025 20/18 Q1011 NOSIG |
| 2026-10-12 11:20 EDT | METAR | 19° | 18° | 4.1 | METAR LTFM 121520Z 02008KT 350V050 9999 SCT008 BKN025 19/18 Q1012 NOSIG |
| 2026-10-12 11:50 EDT | METAR | 19° | 18° | 4.1 | METAR LTFM 121550Z 05008KT 9999 SCT008 BKN025 19/18 Q1012 NOSIG |
| 2026-10-12 12:20 EDT | METAR | 19° | 17° | 3.6 | METAR LTFM 121620Z 03007KT 9999 SCT008 BKN025 19/17 Q1012 NOSIG |
| 2026-10-12 12:50 EDT | METAR | 19° | 17° | 3.1 | METAR LTFM 121650Z 03006KT 340V040 9999 SCT008 BKN025 19/17 Q1013 NOSIG |
| 2026-10-12 13:20 EDT | METAR | 19° | 17° | 3.1 | METAR LTFM 121720Z 01006KT 9999 SCT008 BKN028 19/17 Q1013 NOSIG |
| 2026-10-12 13:50 EDT | METAR | 19° | 18° | 3.1 | METAR LTFM 121750Z 03006KT 340V060 9999 SCT008 BKN028 19/18 Q1013 NOSIG |
| 2026-10-12 14:20 EDT | METAR | 19° | 18° | 3.6 | METAR LTFM 121820Z 36007KT 9999 SCT008 BKN028 BKN080 19/18 Q1013 RESHRA NOSIG |
| 2026-10-12 14:50 EDT | METAR | 19° | 18° | 3.1 | METAR LTFM 121850Z 03006KT 9999 SCT008 BKN028 BKN080 19/18 Q1013 NOSIG |
| 2026-10-12 15:20 EDT | METAR | 19° | 18° | 3.6 | METAR LTFM 121920Z 35007KT 310V030 9999 SCT008 BKN028 BKN080 19/18 Q1013 NOSIG |
| 2026-10-12 15:50 EDT | METAR | 19° | 17° | 2.6 | METAR LTFM 121950Z 01005KT 320V060 9999 SCT008 BKN028 19/17 Q1014 NOSIG |
| 2026-10-12 16:20 EDT | METAR | 19° | 17° | 2.6 | METAR LTFM 122020Z 34005KT 9999 VCSH SCT008 BKN028 19/17 Q1014 NOSIG |
| 2026-10-12 16:50 EDT | METAR | 19° | 17° | 2.1 | METAR LTFM 122050Z 35004KT 9999 VCSH SCT008 BKN028 19/17 Q1014 NOSIG |
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/2026-10-12 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.
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.
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).
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).