{
  "schemaVersion": 1,
  "checkedOn": "2026-09-18",
  "measurementObservedAt": null,
  "previousComparableObservation": null,
  "coverage": 17,
  "status": "unverified-metrics",
  "methodology": "Public-source evidence review, not an AIS feed. Notices support only their stated location and period. A notice is not a measurement of port-wide congestion. Missing measurements remain null; no score, ranking, forecast or historical change is calculated. Health scores run high-is-good; congestion scores run high-is-bad. Neither is currently verified.",
  "audit": {
    "sourceBranch": "main",
    "sourceCommit": "ae36aeaee5907670e9f37aeae12c3859ab4bfbd7",
    "productionBaseCommit": "19d6dbf99de5d613fd72939a9c2059db3ae3f3ef",
    "findings": [
      "src/data/portData.ts contains 17 hard-coded port records, relative update strings and random synthetic history; these are not verified observations.",
      "The production report contains figures labelled 2026-09-02, whereas the search extraction still showed 2026-08-26. Neither date establishes when the metrics were measured.",
      "Other port detail and comparison pages consume the same unverified data. Their numerical results must not be treated as operational evidence.",
      "A scheduled publisher regenerated the weekly report on 9 September with the same unsupported numerical values relabelled as live data. The public current report and dated edition were corrected to explicit unverified states.",
      "An external Carrgo SEO Agent regenerated the production report on 16 September with unsupported synthetic health scores labelled as live data, while the evidence ledger still recorded every numerical measurement as unknown. The current report, archive and dated URL were corrected on 17 September."
    ],
    "changesSincePrevious": "Peel Ports’ current Liverpool index still lists Notice 63/2026; its stated Alfred Lock closure window runs from the 03:52 high-water tide until 13:16 on 18 September. Notice 62/2026’s bridge-closure window ended on 17 September. The Met Office shipping forecast now carries gale warnings for the Irish Sea and Malin, and the inshore forecast carries strong-wind warnings around the Irish Sea and Northern Ireland coasts. These are time-limited operating and weather advisories, not port-wide congestion measurements, so no congestion change is calculated."
  },
  "sources": [
    {
      "id": "liverpool-55",
      "publisher": "Peel Ports",
      "url": "https://www.peelports.com/media/142jelmm/lntm-2026-055-temporary-closure-of-s7-and-s8.pdf",
      "publishedOn": "2026-08-26",
      "checkedOn": "2026-09-18",
      "kind": "primary-notice",
      "access": "Public primary notice text rechecked through current search extraction",
      "confidence": "high for notice content; current amendments not independently confirmed",
      "claim": "Notice 55/2026 schedules closure of S7 and part of S8 at Royal Seaforth Dock from 1 to 29 September 2026. The restricted quay section is 480 m to 792 m.",
      "validFrom": "2026-09-01",
      "validThrough": "2026-09-29",
      "publishedAt": null,
      "checkedAt": "2026-09-18T08:46:59+01:00",
      "supportedClaim": "Notice 55/2026 schedules closure of S7 and part of S8 at Royal Seaforth Dock from 1 to 29 September 2026. The restricted quay section is 480 m to 792 m."
    },
    {
      "id": "liverpool-57",
      "publisher": "Peel Ports",
      "url": "https://www.peelports.com/media/4r5p5yyi/lntm-2026-057-temporary-closure-of-south-gladstone-branch-dock-no-2.pdf",
      "publishedOn": "2026-08-26",
      "publishedAt": null,
      "checkedOn": "2026-09-18",
      "checkedAt": "2026-09-18T08:46:59+01:00",
      "kind": "primary-notice",
      "access": "Public primary notice text rechecked through current search extraction",
      "confidence": "high for notice content; current amendments not independently confirmed",
      "claim": "Notice 57/2026 closes the south quay of South Gladstone Branch Dock No 2 from 14 September at 00:00 until 27 September at 24:00. Vessels must not come alongside that quay.",
      "supportedClaim": "Notice 57/2026 closes the south quay of South Gladstone Branch Dock No 2 from 14 September at 00:00 until 27 September at 24:00. Vessels must not come alongside that quay.",
      "validFrom": "2026-09-14T00:00:00+01:00",
      "validThrough": "2026-09-28T00:00:00+01:00"
    },
    {
      "id": "liverpool-43",
      "publisher": "Peel Ports",
      "url": "https://www.peelports.com/media/tulazv3l/lntm-2026-043-temporary-closures-of-langton-lock.pdf",
      "publishedOn": "2026-07-10",
      "checkedOn": "2026-09-12",
      "kind": "primary-notice",
      "access": "Public PDF text rechecked; the stated schedule ended at 20:00 on 11 September and no replacement was located in the reviewed public sources",
      "confidence": "high for notice content; actual lock slots must be confirmed",
      "claim": "Notice 43/2026 sets recurring Langton Lock closures through 11 September. Monday and Sunday windows are 09:00 to 20:00; Wednesday and Friday windows are 11:00 to 20:00. The Dockmaster can vary timings and suitably sized vessels may use the Hornby Passage and Gladstone Lock subject to confirmation.",
      "validFrom": "2026-07-19",
      "validThrough": "2026-09-11",
      "publishedAt": null,
      "checkedAt": "2026-09-12T08:17:29+01:00",
      "supportedClaim": "Notice 43/2026 sets recurring Langton Lock closures through 11 September. Monday and Sunday windows are 09:00 to 20:00; Wednesday and Friday windows are 11:00 to 20:00. The Dockmaster can vary timings and suitably sized vessels may use the Hornby Passage and Gladstone Lock subject to confirmation."
    },
    {
      "id": "liverpool-59",
      "publisher": "Peel Ports",
      "url": "https://www.peelports.com/media/qivmgfg2/lntm-2026-059-temporary-closure-of-gladstone-lock.pdf",
      "publishedOn": "2026-09-07",
      "checkedOn": "2026-09-15",
      "kind": "primary-notice",
      "access": "Public primary notice text rechecked; the current Peel Ports marine page continues to list this notice",
      "confidence": "high for notice content; actual lock/tide arrangements must be confirmed",
      "claim": "Notice 59/2026 schedules a temporary Gladstone Lock closure for engineering work on 15 September 2026 from 09:00 to 17:00. Vessels able to transit the Hornby Passage may continue and use Langton Lock subject to tide height and Dockmaster confirmation.",
      "validFrom": "2026-09-15T09:00:00+01:00",
      "validThrough": "2026-09-15T17:00:00+01:00",
      "publishedAt": null,
      "checkedAt": "2026-09-15T08:34:32+01:00",
      "supportedClaim": "Notice 59/2026 schedules a temporary Gladstone Lock closure for engineering work on 15 September 2026 from 09:00 to 17:00. Vessels able to transit the Hornby Passage may continue and use Langton Lock subject to tide height and Dockmaster confirmation.",
      "missingEvidence": "The notice does not report port-wide vessel queues, waiting time or berth utilisation."
    },
    {
      "id": "liverpool-60",
      "publisher": "Peel Ports",
      "url": "https://www.peelports.com/media/ucihxukn/lntm-2026-060-temporary-closure-of-a-bridge.pdf",
      "publishedOn": "2026-09-10",
      "publishedAt": null,
      "checkedOn": "2026-09-15",
      "checkedAt": "2026-09-15T08:34:32+01:00",
      "kind": "primary-notice",
      "access": "Public primary notice text rechecked; its stated closure window ended before this review",
      "confidence": "high for the stated notice period; none for conditions after the stated window",
      "claim": "Notice 60/2026 says A-Bridge will remain closed for engineering work on 14 September 2026 from 08:00 to 16:00.",
      "supportedClaim": "Notice 60/2026 says A-Bridge will remain closed for engineering work on 14 September 2026 from 08:00 to 16:00.",
      "validFrom": "2026-09-14T08:00:00+01:00",
      "validThrough": "2026-09-14T16:00:00+01:00",
      "missingEvidence": "No later amendment or port-wide congestion measurement was located in the reviewed public sources."
    },
    {
      "id": "liverpool-61",
      "publisher": "Peel Ports",
      "url": "https://www.peelports.com/media/zgjjwhga/lntm-2026-061-temporary-closure-of-langton-lock.pdf",
      "publishedOn": "2026-09-11",
      "publishedAt": null,
      "checkedOn": "2026-09-15",
      "checkedAt": "2026-09-15T08:34:32+01:00",
      "kind": "primary-notice",
      "access": "Public primary notice text retrieved through current search extraction",
      "confidence": "high for notice content; none for current conditions after the stated window",
      "claim": "Notice 61/2026 recorded a temporary Langton Lock closure on 13 September 2026 from 11:30 to 21:00. Vessels able to transit the Hornby Passage could continue and use Gladstone Lock subject to tide height and Dockmaster confirmation. The stated window had ended before this review.",
      "supportedClaim": "Notice 61/2026 recorded a temporary Langton Lock closure on 13 September 2026 from 11:30 to 21:00. Vessels able to transit the Hornby Passage could continue and use Gladstone Lock subject to tide height and Dockmaster confirmation. The stated window had ended before this review.",
      "validFrom": "2026-09-13T11:30:00+01:00",
      "validThrough": "2026-09-13T21:00:00+01:00",
      "missingEvidence": "No timestamped port-wide waiting-time, queue or berth-utilisation measurement is provided by this notice."
    },
    {
      "id": "felixstowe-status",
      "publisher": "Port of Felixstowe",
      "url": "https://ocean.portoffelixstowe.co.uk/",
      "publishedOn": null,
      "checkedOn": "2026-09-09",
      "kind": "primary-status",
      "access": "403 in public research fetch",
      "confidence": "none for operational conditions",
      "claim": null,
      "publishedAt": null,
      "checkedAt": "2026-09-09T08:05:31+01:00",
      "supportedClaim": null
    },
    {
      "id": "southampton-status",
      "publisher": "DP World",
      "url": "https://www.dpworld.com/en/ports-terminals/united-kingdom/southampton/live-status",
      "publishedOn": null,
      "checkedOn": "2026-09-11",
      "kind": "primary-status",
      "access": "Live status page retrieved; accessible text links to daily status but no timestamped port-wide congestion measurement was suitable for the comparable ledger",
      "confidence": "none for port-wide congestion conditions",
      "claim": null,
      "publishedAt": null,
      "checkedAt": "2026-09-11T08:13:45+01:00",
      "supportedClaim": null
    },
    {
      "id": "gateway-status",
      "publisher": "DP World",
      "url": "https://www.dpworld.com/en/ports-terminals/united-kingdom/london-gateway/live-status",
      "publishedOn": null,
      "checkedOn": "2026-09-11",
      "kind": "primary-status",
      "access": "Live status page retrieved; accessible text links to a customer notice dated 09/08/2026 but no port-wide congestion measurement was available in accessible text",
      "confidence": "none for port-wide congestion conditions",
      "claim": null,
      "publishedAt": null,
      "checkedAt": "2026-09-11T08:13:45+01:00",
      "supportedClaim": null
    },
    {
      "id": "dublin-notices",
      "publisher": "Dublin Port",
      "url": "https://www.dublinport.ie/information-centre/notice-to-mariners-2026/",
      "publishedOn": null,
      "checkedOn": "2026-09-18",
      "kind": "primary-index",
      "access": "Official 2026 notice index and summary checked; the latest listed notice remains No. 48/2026",
      "confidence": "none for port-wide congestion conditions",
      "claim": null,
      "publishedAt": null,
      "checkedAt": "2026-09-18T08:46:59+01:00",
      "supportedClaim": null
    },
    {
      "id": "dublin-48",
      "publisher": "Dublin Port",
      "url": "https://www.dublinport.ie/wp-content/uploads/2026/08/48-2026-Maintenance-Dredge-Campaign.pdf",
      "publishedOn": "2026-08-27",
      "checkedOn": "2026-09-18",
      "kind": "primary-notice",
      "access": "Public PDF text checked from indexed primary notice",
      "confidence": "high for notice content; actual daily dredging location/timing must be confirmed by VTS",
      "claim": "Notice 48/2026 says maintenance dredging started on 3 September for approximately three weeks, with works in the outer and inner fairway and all berths throughout Dublin Port. Vessels are told to pass at slow speed and allow for restricted manoeuvrability.",
      "validFrom": "2026-09-03",
      "publishedAt": null,
      "checkedAt": "2026-09-18T08:46:59+01:00",
      "supportedClaim": "Notice 48/2026 says maintenance dredging started on 3 September for approximately three weeks, with works in the outer and inner fairway and all berths throughout Dublin Port. Vessels are told to pass at slow speed and allow for restricted manoeuvrability."
    },
    {
      "id": "dublin-39-3",
      "publisher": "Dublin Port",
      "url": "https://www.dublinport.ie/information-centre/notice-to-mariners-2026/",
      "publishedOn": "2026-09-01",
      "checkedOn": "2026-09-18",
      "kind": "primary-notice",
      "access": "Both public Dublin Port PDF copies rechecked; they still conflict on the approximate end date",
      "confidence": "high for 13 September start and navigation advice; none for the survey end date",
      "claim": "Notice 39.3/2026 schedules survey operations from 13 September in western Dublin Bay. Public Dublin Port PDF copies give different approximate end dates (30 September and 31 October), so the current end date must be confirmed with Dublin Port VTS.",
      "validFrom": "2026-09-13",
      "publishedAt": null,
      "checkedAt": "2026-09-18T08:46:59+01:00",
      "supportedClaim": "Notice 39.3/2026 schedules survey operations from 13 September in western Dublin Bay. Public Dublin Port PDF copies give different approximate end dates (30 September and 31 October), so the current end date must be confirmed with Dublin Port VTS.",
      "relatedUrls": [
        "https://www.dublinport.ie/wp-content/uploads/2026/09/39.3-2026-Survey-Operations-1.pdf",
        "https://www.dublinport.ie/wp-content/uploads/2026/09/39.3-2026-Survey-Operations.pdf"
      ]
    },
    {
      "id": "met-eireann-ei822-2026-09-09",
      "publisher": "Met Éireann",
      "url": "https://www.met.ie/warnings/tomorrow/marine/EI822",
      "publishedOn": "2026-09-08",
      "publishedAt": "2026-09-08T07:31:00+01:00",
      "checkedOn": "2026-09-09",
      "checkedAt": "2026-09-09T08:05:31+01:00",
      "kind": "official-weather-warning",
      "access": "Public warning page retrieved through indexed primary-source text",
      "confidence": "high for the stated warning period; none for port-wide congestion conditions",
      "claim": "A small-craft warning stated that northwest winds could reach force 6 at times from Malin Head through Strangford Lough to Wicklow Head. It expired at 04:00 on 9 September, before this evidence review.",
      "supportedClaim": "A small-craft warning stated that northwest winds could reach force 6 at times from Malin Head through Strangford Lough to Wicklow Head. It expired at 04:00 on 9 September, before this evidence review.",
      "validFrom": "2026-09-09T00:00:00+01:00",
      "validThrough": "2026-09-09T04:00:00+01:00"
    },
    {
      "id": "met-eireann-2026-09-10",
      "publisher": "Met Éireann",
      "url": "https://www.met.ie/warnings/today/dublin",
      "publishedOn": "2026-09-09",
      "publishedAt": "2026-09-09T00:26:00+01:00",
      "checkedOn": "2026-09-10",
      "checkedAt": "2026-09-10T08:46:27+01:00",
      "kind": "official-weather-warning",
      "access": "Public warning page retrieved through indexed primary-source text",
      "confidence": "high for the stated warning periods; none for port-wide congestion conditions",
      "claim": "Small-craft warnings are in force on 10 September. South to southwest winds are forecast to reach force 6 or 7 at times from Fair Head through Howth Head to Roche's Point from 07:00 to 17:00; another warning covers Roche's Point through Slyne Head to Fair Head until 14:00.",
      "supportedClaim": "Small-craft warnings are in force on 10 September. South to southwest winds are forecast to reach force 6 or 7 at times from Fair Head through Howth Head to Roche's Point from 07:00 to 17:00; another warning covers Roche's Point through Slyne Head to Fair Head until 14:00.",
      "validFrom": "2026-09-10T07:00:00+01:00",
      "validThrough": "2026-09-10T17:00:00+01:00"
    },
    {
      "id": "met-office-shipping-2026-09-11",
      "publisher": "Met Office on behalf of the Maritime and Coastguard Agency",
      "url": "https://weather.metoffice.gov.uk/specialist-forecasts/coast-and-sea/shipping-forecast",
      "publishedOn": "2026-09-11",
      "publishedAt": "2026-09-11T04:05:00Z",
      "checkedOn": "2026-09-11",
      "checkedAt": "2026-09-11T08:13:45+01:00",
      "kind": "official-shipping-forecast",
      "access": "Public official shipping forecast retrieved",
      "confidence": "high for the stated forecast and warning period; none for port-wide congestion conditions",
      "claim": "The shipping forecast issued at 04:05 UTC on 11 September carries gale warnings for Shannon and Malin, with southerly or southwesterly gale force 8 expected later. This is sea-area weather context, not a port congestion measurement.",
      "supportedClaim": "The shipping forecast issued at 04:05 UTC on 11 September carries gale warnings for Shannon and Malin, with southerly or southwesterly gale force 8 expected later. This is sea-area weather context, not a port congestion measurement.",
      "validFrom": "2026-09-11T06:00:00Z",
      "validThrough": "2026-09-12T06:00:00Z"
    },
    {
      "id": "met-office-shipping-2026-09-12",
      "publisher": "Met Office on behalf of the Maritime and Coastguard Agency",
      "url": "https://weather.metoffice.gov.uk/specialist-forecasts/coast-and-sea/shipping-forecast",
      "publishedOn": "2026-09-12",
      "publishedAt": "2026-09-12T04:05:00+01:00",
      "checkedOn": "2026-09-12",
      "checkedAt": "2026-09-12T08:17:29+01:00",
      "kind": "official-shipping-forecast",
      "access": "Public official shipping forecast retrieved",
      "confidence": "high for the stated forecast and warning period; none for port-wide congestion conditions",
      "claim": "The shipping forecast issued at 04:05 BST on 12 September carries a gale warning for Malin, with southerly gale force 8 continuing. The Irish Sea forecast has southwest force 5 to 7 before winds ease. This is sea-area weather context, not a port congestion measurement.",
      "supportedClaim": "The shipping forecast issued at 04:05 BST on 12 September carries a gale warning for Malin, with southerly gale force 8 continuing. The Irish Sea forecast has southwest force 5 to 7 before winds ease. This is sea-area weather context, not a port congestion measurement.",
      "validFrom": "2026-09-12T06:00:00+01:00",
      "validThrough": "2026-09-13T06:00:00+01:00"
    },
    {
      "id": "met-office-shipping-2026-09-13",
      "publisher": "Met Office on behalf of the Maritime and Coastguard Agency",
      "url": "https://weather.metoffice.gov.uk/specialist-forecasts/coast-and-sea/shipping-forecast",
      "publishedOn": "2026-09-13",
      "publishedAt": "2026-09-13T04:05:00+01:00",
      "checkedOn": "2026-09-13",
      "checkedAt": "2026-09-13T08:25:38+01:00",
      "kind": "official-shipping-forecast",
      "access": "Public official shipping forecast retrieved",
      "confidence": "high for the stated forecast period; none for port-wide congestion conditions",
      "claim": "The shipping forecast issued at 04:05 BST on 13 September lists a gale warning only for Bailey. No gale warning is listed for the Irish Sea, Shannon or Malin; the Irish Sea forecast is variable force 2 to 4, becoming southwest 3 to 5 later, with rain and fog patches. This is sea-area weather context, not a port congestion measurement.",
      "supportedClaim": "The shipping forecast issued at 04:05 BST on 13 September lists a gale warning only for Bailey. No gale warning is listed for the Irish Sea, Shannon or Malin; the Irish Sea forecast is variable force 2 to 4, becoming southwest 3 to 5 later, with rain and fog patches. This is sea-area weather context, not a port congestion measurement.",
      "validFrom": "2026-09-13T06:00:00+01:00",
      "validThrough": "2026-09-14T06:00:00+01:00"
    },
    {
      "id": "met-office-shipping-2026-09-14",
      "publisher": "Met Office on behalf of the Maritime and Coastguard Agency",
      "url": "https://weather.metoffice.gov.uk/specialist-forecasts/coast-and-sea/shipping-forecast",
      "publishedOn": "2026-09-14",
      "publishedAt": "2026-09-14T04:05:00+01:00",
      "checkedOn": "2026-09-14",
      "checkedAt": "2026-09-14T08:10:30+01:00",
      "kind": "official-shipping-forecast",
      "access": "Public official shipping forecast retrieved",
      "confidence": "high for the stated forecast period; none for port-wide congestion conditions",
      "claim": "The shipping forecast issued at 04:05 BST on 14 September reports no gale warnings in force. For Lundy, Fastnet and the Irish Sea it forecasts southwest winds veering west or northwest later, force 2 to 4 increasing 4 to 6, with occasional rain and fog patches at first. This is sea-area weather context, not a port congestion measurement.",
      "supportedClaim": "The shipping forecast issued at 04:05 BST on 14 September reports no gale warnings in force. For Lundy, Fastnet and the Irish Sea it forecasts southwest winds veering west or northwest later, force 2 to 4 increasing 4 to 6, with occasional rain and fog patches at first. This is sea-area weather context, not a port congestion measurement.",
      "validFrom": "2026-09-14T06:00:00+01:00",
      "validThrough": "2026-09-15T06:00:00+01:00",
      "missingEvidence": "A sea-area forecast does not measure queues, berth use or waiting times at any port."
    },
    {
      "id": "met-office-shipping-2026-09-15",
      "publisher": "Met Office on behalf of the Maritime and Coastguard Agency",
      "url": "https://weather.metoffice.gov.uk/specialist-forecasts/coast-and-sea/shipping-forecast",
      "publishedOn": "2026-09-15",
      "publishedAt": "2026-09-15T04:05:00Z",
      "checkedOn": "2026-09-15",
      "checkedAt": "2026-09-15T08:34:32+01:00",
      "kind": "official-weather",
      "access": "Public current shipping forecast text retrieved",
      "confidence": "high for the stated forecast period; none for port-wide congestion conditions",
      "claim": "The shipping forecast issued at 04:05 UTC on 15 September carries a gale warning for Forties. It does not list a gale warning for the Irish Sea, Shannon or Malin. The Irish Sea forecast has west or southwest winds veering northwest, force 4 to 6. This is sea-area weather context, not a port congestion measurement.",
      "supportedClaim": "The shipping forecast issued at 04:05 UTC on 15 September carries a gale warning for Forties. It does not list a gale warning for the Irish Sea, Shannon or Malin. The Irish Sea forecast has west or southwest winds veering northwest, force 4 to 6. This is sea-area weather context, not a port congestion measurement.",
      "validFrom": "2026-09-15T06:00:00Z",
      "validThrough": "2026-09-16T06:00:00Z",
      "missingEvidence": "A sea-area forecast does not measure queues, berth use or waiting times at any port."
    },
    {
      "id": "met-office-inshore-2026-09-15",
      "publisher": "Met Office",
      "url": "https://weather.metoffice.gov.uk/specialist-forecasts/coast-and-sea/inshore-waters-forecast",
      "publishedOn": "2026-09-15",
      "publishedAt": "2026-09-15T06:00:00Z",
      "checkedOn": "2026-09-15",
      "checkedAt": "2026-09-15T08:34:32+01:00",
      "kind": "official-weather",
      "access": "Public current inshore forecast text retrieved",
      "confidence": "high for the stated forecast period; none for port-wide congestion conditions",
      "claim": "The inshore forecast issued at 06:00 UTC on 15 September carries a strong-wind warning from the Mull of Galloway to the Mull of Kintyre, including the Firth of Clyde and North Channel. Westerly or southwesterly winds are forecast to veer northwesterly, force 4 or 5 and increase to force 6 at times until later. This is coastal weather context, not evidence of congestion at Belfast or Larne.",
      "supportedClaim": "The inshore forecast issued at 06:00 UTC on 15 September carries a strong-wind warning from the Mull of Galloway to the Mull of Kintyre, including the Firth of Clyde and North Channel. Westerly or southwesterly winds are forecast to veer northwesterly, force 4 or 5 and increase to force 6 at times until later. This is coastal weather context, not evidence of congestion at Belfast or Larne.",
      "validFrom": "2026-09-15T06:00:00Z",
      "validThrough": "2026-09-16T06:00:00Z",
      "missingEvidence": "The forecast does not report terminal operations, queues, berth use or waiting times."
    },
    {
      "id": "liverpool-62",
      "publisher": "Peel Ports",
      "url": "https://www.peelports.com/media/rdvpvxk2/lntm-2026-062-temporary-closure-of-canada-90-swing-bridge.pdf",
      "publishedOn": "2026-09-16",
      "publishedAt": null,
      "checkedOn": "2026-09-18",
      "checkedAt": "2026-09-18T08:46:59+01:00",
      "kind": "primary-notice",
      "access": "Public primary notice text retrieved",
      "confidence": "high for the stated notice period; none for port-wide congestion conditions",
      "claim": "Notice 62/2026 schedules closure of the Canada 90-foot Swing Bridge to vessel movements from 18:30 to 20:30 on 17 September 2026. Vessels cannot pass between Canada Dock and docks south of the bridge during the closure.",
      "supportedClaim": "Notice 62/2026 schedules closure of the Canada 90-foot Swing Bridge to vessel movements from 18:30 to 20:30 on 17 September 2026. Vessels cannot pass between Canada Dock and docks south of the bridge during the closure.",
      "validFrom": "2026-09-17T18:30:00+01:00",
      "validThrough": "2026-09-17T20:30:00+01:00",
      "missingEvidence": "Actual bridge status, amendments, port-wide queues, waiting times and berth utilisation are not reported."
    },
    {
      "id": "liverpool-63",
      "publisher": "Peel Ports",
      "url": "https://www.peelports.com/media/xtwbi5nd/lntm-2026-063-temporary-closure-of-alfred-lock.pdf",
      "publishedOn": "2026-09-16",
      "publishedAt": null,
      "checkedOn": "2026-09-18",
      "checkedAt": "2026-09-18T08:46:59+01:00",
      "kind": "primary-notice",
      "access": "Public primary notice text retrieved",
      "confidence": "high for the stated notice period; none for port-wide congestion conditions",
      "claim": "Notice 63/2026 schedules closure of Alfred Lock to vessel movements on the 03:52 high-water tide on 18 September 2026. Unless amended, the notice is to be withdrawn at 13:16 that day.",
      "supportedClaim": "Notice 63/2026 schedules closure of Alfred Lock to vessel movements on the 03:52 high-water tide on 18 September 2026. Unless amended, the notice is to be withdrawn at 13:16 that day.",
      "validFrom": "2026-09-18T03:52:00+01:00",
      "validThrough": "2026-09-18T13:16:00+01:00",
      "missingEvidence": "Actual lock status, amendments, port-wide queues, waiting times and berth utilisation are not reported."
    },
    {
      "id": "met-office-shipping-2026-09-17",
      "publisher": "Met Office on behalf of the Maritime and Coastguard Agency",
      "url": "https://weather.metoffice.gov.uk/specialist-forecasts/coast-and-sea/shipping-forecast",
      "publishedOn": "2026-09-17",
      "publishedAt": "2026-09-17T04:05:00Z",
      "checkedOn": "2026-09-17",
      "checkedAt": "2026-09-17T08:39:58+01:00",
      "kind": "official-weather",
      "access": "Public current shipping forecast text retrieved",
      "confidence": "high for the stated forecast period; none for port-wide congestion conditions",
      "claim": "The shipping forecast issued at 04:05 UTC on 17 September carries gale warnings for Rockall, Malin, Hebrides, Bailey, Fair Isle and Faeroes. The Irish Sea forecast is west or southwest force 4 to 6, occasionally 7 at first. This is sea-area weather context, not a port congestion measurement.",
      "supportedClaim": "The shipping forecast issued at 04:05 UTC on 17 September carries gale warnings for Rockall, Malin, Hebrides, Bailey, Fair Isle and Faeroes. The Irish Sea forecast is west or southwest force 4 to 6, occasionally 7 at first. This is sea-area weather context, not a port congestion measurement.",
      "validFrom": "2026-09-17T06:00:00Z",
      "validThrough": "2026-09-18T06:00:00Z",
      "missingEvidence": "The forecast does not report terminal operations, queues, berth use or waiting times."
    },
    {
      "id": "met-office-inshore-2026-09-17",
      "publisher": "Met Office",
      "url": "https://weather.metoffice.gov.uk/specialist-forecasts/coast-and-sea/inshore-waters-forecast",
      "publishedOn": "2026-09-17",
      "publishedAt": "2026-09-17T06:00:00Z",
      "checkedOn": "2026-09-17",
      "checkedAt": "2026-09-17T08:39:58+01:00",
      "kind": "official-weather",
      "access": "Public current inshore forecast text retrieved",
      "confidence": "high for the stated forecast period; none for port-wide congestion conditions",
      "claim": "The inshore forecast issued at 06:00 UTC on 17 September carries strong-wind warnings for Great Orme Head to the Mull of Galloway, the Isle of Man, Lough Foyle to Carlingford Lough, and the Firth of Clyde and North Channel. Some Northern Ireland coastal areas are forecast west or southwest force 6 to gale 8. This is coastal weather context, not evidence of port congestion.",
      "supportedClaim": "The inshore forecast issued at 06:00 UTC on 17 September carries strong-wind warnings for Great Orme Head to the Mull of Galloway, the Isle of Man, Lough Foyle to Carlingford Lough, and the Firth of Clyde and North Channel. Some Northern Ireland coastal areas are forecast west or southwest force 6 to gale 8. This is coastal weather context, not evidence of port congestion.",
      "validFrom": "2026-09-17T06:00:00Z",
      "validThrough": "2026-09-18T06:00:00Z",
      "missingEvidence": "The forecast does not report terminal operations, queues, berth use or waiting times."
    },
    {
      "id": "liverpool-notices-index-2026-09-18",
      "publisher": "Peel Ports",
      "url": "https://www.peelports.com/marine/our-ports/liverpool/",
      "publishedOn": null,
      "publishedAt": null,
      "checkedOn": "2026-09-18",
      "checkedAt": "2026-09-18T08:46:59+01:00",
      "kind": "primary-index",
      "access": "Official Liverpool marine page retrieved; it lists 12 current-year notices and three latest alerts, including Notices 62 and 63",
      "confidence": "high for the notice index at the stated check time; none for port-wide congestion conditions",
      "claim": "The official Liverpool marine page lists Notices 55, 57, 62 and 63 among current 2026 notices. Notice 62’s stated window ended on 17 September; Notice 63’s stated Alfred Lock window runs until 13:16 on 18 September.",
      "supportedClaim": "The official Liverpool marine page lists Notices 55, 57, 62 and 63 among current 2026 notices. Notice 62’s stated window ended on 17 September; Notice 63’s stated Alfred Lock window runs until 13:16 on 18 September.",
      "validFrom": null,
      "validThrough": null,
      "missingEvidence": "The index does not report actual lock status, amendments, queues, waiting times or berth utilisation."
    },
    {
      "id": "met-office-shipping-2026-09-18",
      "publisher": "Met Office on behalf of the Maritime and Coastguard Agency",
      "url": "https://weather.metoffice.gov.uk/specialist-forecasts/coast-and-sea/shipping-forecast",
      "publishedOn": "2026-09-18",
      "publishedAt": "2026-09-18T04:05:00Z",
      "checkedOn": "2026-09-18",
      "checkedAt": "2026-09-18T08:46:59+01:00",
      "kind": "official-weather",
      "access": "Public current shipping forecast text retrieved",
      "confidence": "high for the stated forecast period; none for port-wide congestion conditions",
      "claim": "The shipping forecast issued at 04:05 UTC on 18 September carries gale warnings for the Irish Sea and Malin. The Irish Sea has southwesterly gale force 8 expected later; Malin has southwesterly gale force 8 expected soon. This is sea-area weather context, not a port congestion measurement.",
      "supportedClaim": "The shipping forecast issued at 04:05 UTC on 18 September carries gale warnings for the Irish Sea and Malin. The Irish Sea has southwesterly gale force 8 expected later; Malin has southwesterly gale force 8 expected soon. This is sea-area weather context, not a port congestion measurement.",
      "validFrom": "2026-09-18T06:00:00Z",
      "validThrough": "2026-09-19T06:00:00Z",
      "missingEvidence": "The forecast does not report terminal operations, queues, berth use or waiting times."
    },
    {
      "id": "met-office-inshore-2026-09-18",
      "publisher": "Met Office",
      "url": "https://weather.metoffice.gov.uk/specialist-forecasts/coast-and-sea/inshore-waters-forecast",
      "publishedOn": "2026-09-18",
      "publishedAt": "2026-09-18T06:00:00Z",
      "checkedOn": "2026-09-18",
      "checkedAt": "2026-09-18T08:46:59+01:00",
      "kind": "official-weather",
      "access": "Public current inshore forecast text retrieved",
      "confidence": "high for the stated forecast period; none for port-wide congestion conditions",
      "claim": "The inshore forecast issued at 06:00 UTC on 18 September carries strong-wind warnings for Great Orme Head to the Mull of Galloway, the Isle of Man, Lough Foyle to Carlingford Lough, and the Firth of Clyde and North Channel. Irish Sea-facing areas are forecast to reach gale force 8, while the North Channel may reach force 7. This is coastal weather context, not evidence of port congestion.",
      "supportedClaim": "The inshore forecast issued at 06:00 UTC on 18 September carries strong-wind warnings for Great Orme Head to the Mull of Galloway, the Isle of Man, Lough Foyle to Carlingford Lough, and the Firth of Clyde and North Channel. Irish Sea-facing areas are forecast to reach gale force 8, while the North Channel may reach force 7. This is coastal weather context, not evidence of port congestion.",
      "validFrom": "2026-09-18T06:00:00Z",
      "validThrough": "2026-09-19T06:00:00Z",
      "missingEvidence": "The forecast does not report terminal operations, queues, berth use or waiting times."
    }
  ],
  "ports": [
    {
      "port": "Felixstowe",
      "slug": "felixstowe",
      "sources": [
        "felixstowe-status"
      ],
      "review": "Source access blocked; current conditions unknown.",
      "observedAt": null,
      "confidence": "none for port-wide congestion",
      "missingEvidence": "Timestamped primary port-wide measurements suitable for comparison.",
      "changesSinceLastComparableObservation": null
    },
    {
      "port": "Southampton",
      "slug": "southampton",
      "sources": [
        "southampton-status"
      ],
      "review": "Live status page checked. No timestamped, comparable port-wide congestion measurement was available in accessible primary-source text.",
      "observedAt": null,
      "confidence": "none for port-wide congestion",
      "missingEvidence": "Timestamped primary port-wide measurements suitable for comparison.",
      "changesSinceLastComparableObservation": null
    },
    {
      "port": "London Gateway",
      "slug": "london-gateway",
      "sources": [
        "gateway-status"
      ],
      "review": "Live status page checked. No timestamped, comparable port-wide congestion measurement was available in accessible primary-source text.",
      "observedAt": null,
      "confidence": "none for port-wide congestion",
      "missingEvidence": "Timestamped primary port-wide measurements suitable for comparison.",
      "changesSinceLastComparableObservation": null
    },
    {
      "port": "Liverpool",
      "slug": "liverpool",
      "sources": [
        "liverpool-notices-index-2026-09-18",
        "liverpool-55",
        "liverpool-57",
        "liverpool-62",
        "liverpool-63"
      ],
      "review": "Peel Ports’ current Liverpool notice index still lists Notices 55, 57, 62 and 63. Notice 62’s bridge-closure window ended on 17 September. At this check, Notice 63’s stated Alfred Lock closure window is active until 13:16 today. Notices 55 and 57 remain within their stated berth and dock closure windows. Confirm current applicability with the Dockmaster or terminal. Port-wide congestion remains unknown.",
      "observedAt": null,
      "confidence": "high for listed notice content; none for port-wide congestion",
      "missingEvidence": "Timestamped primary port-wide measurements suitable for comparison.",
      "changesSinceLastComparableObservation": null
    },
    {
      "port": "Bristol",
      "slug": "bristol",
      "sources": [],
      "review": "No primary operational measurement reviewed in this run.",
      "observedAt": null,
      "confidence": "none for port-wide congestion",
      "missingEvidence": "Timestamped primary port-wide measurements suitable for comparison.",
      "changesSinceLastComparableObservation": null
    },
    {
      "port": "Tilbury",
      "slug": "tilbury",
      "sources": [],
      "review": "No primary operational measurement reviewed in this run.",
      "observedAt": null,
      "confidence": "none for port-wide congestion",
      "missingEvidence": "Timestamped primary port-wide measurements suitable for comparison.",
      "changesSinceLastComparableObservation": null
    },
    {
      "port": "Immingham",
      "slug": "immingham",
      "sources": [],
      "review": "No primary operational measurement reviewed in this run.",
      "observedAt": null,
      "confidence": "none for port-wide congestion",
      "missingEvidence": "Timestamped primary port-wide measurements suitable for comparison.",
      "changesSinceLastComparableObservation": null
    },
    {
      "port": "Grangemouth",
      "slug": "grangemouth",
      "sources": [],
      "review": "No primary operational measurement reviewed in this run.",
      "observedAt": null,
      "confidence": "none for port-wide congestion",
      "missingEvidence": "Timestamped primary port-wide measurements suitable for comparison.",
      "changesSinceLastComparableObservation": null
    },
    {
      "port": "Holyhead",
      "slug": "holyhead",
      "sources": [
        "met-office-shipping-2026-09-18",
        "met-office-inshore-2026-09-18"
      ],
      "review": "The Irish Sea shipping forecast has a gale warning and nearby inshore areas have strong-wind warnings, but no current port-specific queue, waiting-time or berth-utilisation measurement was verified for Holyhead. Current measured conditions remain unknown.",
      "observedAt": null,
      "confidence": "none for port-wide congestion",
      "missingEvidence": "Timestamped primary port-wide measurements suitable for comparison.",
      "changesSinceLastComparableObservation": null
    },
    {
      "port": "Belfast",
      "slug": "belfast",
      "sources": [
        "met-office-inshore-2026-09-18"
      ],
      "review": "The Met Office inshore forecast carries a strong-wind warning for the Firth of Clyde and North Channel, with winds occasionally reaching force 7, but no current port-specific queue, waiting-time or berth-utilisation measurement was verified for Belfast. Current measured conditions remain unknown.",
      "observedAt": null,
      "confidence": "none for port-wide congestion",
      "missingEvidence": "Timestamped primary port-wide measurements suitable for comparison.",
      "changesSinceLastComparableObservation": null
    },
    {
      "port": "Larne",
      "slug": "larne",
      "sources": [
        "met-office-inshore-2026-09-18"
      ],
      "review": "The Met Office inshore forecast carries a strong-wind warning for the Firth of Clyde and North Channel, with winds occasionally reaching force 7, but no current port-specific queue, waiting-time or berth-utilisation measurement was verified for Larne. Current measured conditions remain unknown.",
      "observedAt": null,
      "confidence": "none for port-wide congestion",
      "missingEvidence": "Timestamped primary port-wide measurements suitable for comparison.",
      "changesSinceLastComparableObservation": null
    },
    {
      "port": "Londonderry",
      "slug": "londonderry",
      "sources": [
        "met-office-shipping-2026-09-18",
        "met-office-inshore-2026-09-18"
      ],
      "review": "The Malin shipping area has a gale warning and the Lough Foyle to Carlingford Lough inshore area has a strong-wind warning. These are weather advisories, not a Londonderry port congestion measurement. Current measured conditions remain unknown.",
      "observedAt": null,
      "confidence": "none for port-wide congestion",
      "missingEvidence": "Timestamped primary port-wide measurements suitable for comparison.",
      "changesSinceLastComparableObservation": null
    },
    {
      "port": "Dublin",
      "slug": "dublin",
      "sources": [
        "dublin-notices",
        "dublin-48",
        "dublin-39-3"
      ],
      "review": "Dublin Port's current notice index still lists maintenance dredging and survey operations. Notice 48 schedules maintenance dredging for approximately three weeks from 3 September. Two public copies of Notice 39.3 conflict on the approximate survey end date; confirm with Dublin Port VTS. These notices do not measure port-wide congestion.",
      "observedAt": null,
      "confidence": "high for listed notice content; none for port-wide congestion",
      "missingEvidence": "Timestamped primary port-wide measurements suitable for comparison.",
      "changesSinceLastComparableObservation": null
    },
    {
      "port": "Cork",
      "slug": "cork",
      "sources": [],
      "review": "No current port-specific operational measurement was verified in this review. Current measured conditions remain unknown.",
      "observedAt": null,
      "confidence": "none for port-wide congestion",
      "missingEvidence": "Timestamped primary port-wide measurements suitable for comparison.",
      "changesSinceLastComparableObservation": null
    },
    {
      "port": "Rosslare Europort",
      "slug": "rosslare-europort",
      "sources": [],
      "review": "No current port-specific operational measurement was verified in this review. Current measured conditions remain unknown.",
      "observedAt": null,
      "confidence": "none for port-wide congestion",
      "missingEvidence": "Timestamped primary port-wide measurements suitable for comparison.",
      "changesSinceLastComparableObservation": null
    },
    {
      "port": "Shannon Foynes",
      "slug": "shannon-foynes",
      "sources": [],
      "review": "No current port-specific operational measurement was verified in this review. Current measured conditions remain unknown.",
      "observedAt": null,
      "confidence": "none for port-wide congestion",
      "missingEvidence": "Timestamped primary port-wide measurements suitable for comparison.",
      "changesSinceLastComparableObservation": null
    },
    {
      "port": "Waterford",
      "slug": "waterford",
      "sources": [],
      "review": "No current port-specific operational measurement was verified in this review. Current measured conditions remain unknown.",
      "observedAt": null,
      "confidence": "none for port-wide congestion",
      "missingEvidence": "Timestamped primary port-wide measurements suitable for comparison.",
      "changesSinceLastComparableObservation": null
    }
  ],
  "metricsForAllPorts": {
    "observedAt": null,
    "healthScore": null,
    "congestionScore": null,
    "waitingTimeHours": null,
    "vesselsWaiting": null,
    "berthUtilisationPercent": null,
    "forecast": null,
    "historicalChange": null,
    "confidence": "unverified",
    "missingEvidence": "Timestamped primary measurements, reproducible scoring methodology and comparable historical observations."
  },
  "reuse": "Original factual summaries with links; source documents are not republished or relicensed. Source owners retain their rights.",
  "checkedAt": "2026-09-18T08:46:59+01:00",
  "changesSincePreviousCheck": "Peel Ports’ current Liverpool index still lists Notice 63/2026; its stated Alfred Lock closure window runs from the 03:52 high-water tide until 13:16 on 18 September. Notice 62/2026’s bridge-closure window ended on 17 September. The Met Office shipping forecast now carries gale warnings for the Irish Sea and Malin, and the inshore forecast carries strong-wind warnings around the Irish Sea and Northern Ireland coasts. These are time-limited operating and weather advisories, not port-wide congestion measurements, so no congestion change is calculated."
}