{
  "title": "NAVTEX Review",
  "generated_at_utc": "2026-04-03T21:12:03.758954+00:00",
  "lookback_hours": 24,
  "focus_region": "Strait of Hormuz",
  "focus_hit_count": 0,
  "message_count": 109,
  "latest_reception": "2026-04-03 23:45:06",
  "source_url": "https://navtex.lv/",
  "stale_issue_filtered_count": 51,
  "max_notice_age_hours": 24,
  "overview": {
    "message_count": 109,
    "counts_by_code": {
      "G": 36,
      "T": 31,
      "S": 16,
      "P": 9,
      "E": 4,
      "O": 3,
      "V": 3,
      "K": 2,
      "J": 2,
      "C": 1,
      "R": 1,
      "L": 1
    },
    "counts_by_area": {
      "G": 36,
      "T": 31,
      "S": 16,
      "P": 9,
      "E": 4,
      "O": 3,
      "V": 3,
      "K": 2,
      "J": 2,
      "C": 1,
      "R": 1,
      "L": 1
    },
    "keyword_counts": {
      "fog": 12,
      "warning": 7,
      "survey": 4,
      "gale": 3,
      "exercise": 2,
      "drifting": 1
    },
    "station_coverage": {
      "resolved_message_count": 67,
      "unresolved_message_count": 42,
      "resolved_station_count": 8,
      "station_rows": [
        {
          "key": "cullercoats",
          "code": "G",
          "station_name": "Cullercoats",
          "country": "United Kingdom",
          "nav_area": "I",
          "latitude": 55.0747,
          "longitude": -1.4632,
          "coverage_label": "North Sea and north-east UK coast",
          "message_count": 23,
          "basis": "station-signature",
          "matched_terms": [
            "DOGGER",
            "SOFIA OFFSHORE WIND FARM"
          ]
        },
        {
          "key": "oostende",
          "code": "T",
          "station_name": "Oostende Radio",
          "country": "Belgium",
          "nav_area": "I",
          "latitude": 51.1825,
          "longitude": 2.8078,
          "coverage_label": "Belgian coast and southern North Sea",
          "message_count": 17,
          "basis": "station-signature",
          "matched_terms": [
            "OOSTENDE",
            "OOSTENDERADIO"
          ]
        },
        {
          "key": "pinneberg",
          "code": "S",
          "station_name": "Pinneberg",
          "country": "Germany",
          "nav_area": "I",
          "latitude": 53.675,
          "longitude": 9.8083,
          "coverage_label": "German Bight and German North Sea",
          "message_count": 13,
          "basis": "station-signature",
          "matched_terms": [
            "GERMAN BIGHT"
          ]
        },
        {
          "key": "oostende_thames",
          "code": "V",
          "station_name": "Oostende (Thames Approaches relay)",
          "country": "Belgium / United Kingdom",
          "nav_area": "I",
          "latitude": 51.1825,
          "longitude": 2.8078,
          "coverage_label": "Thames approaches and Dover approaches",
          "message_count": 5,
          "basis": "station-signature",
          "matched_terms": [
            "THAMES"
          ]
        },
        {
          "key": "niton_france",
          "code": "K",
          "station_name": "Niton (France relay)",
          "country": "United Kingdom / France",
          "nav_area": "I",
          "latitude": 50.5863,
          "longitude": -1.2545,
          "coverage_label": "Channel Islands and north-east French coast",
          "message_count": 3,
          "basis": "station-signature",
          "matched_terms": [
            "AVURNAV CHERBOURG",
            "CHERBOURG"
          ]
        },
        {
          "key": "niton",
          "code": "E",
          "station_name": "Niton",
          "country": "United Kingdom",
          "nav_area": "I",
          "latitude": 50.5863,
          "longitude": -1.2545,
          "coverage_label": "English Channel and western approaches",
          "message_count": 2,
          "basis": "regional-context",
          "matched_terms": [
            "WIGHT",
            "LUNDY",
            "PORTLAND"
          ]
        },
        {
          "key": "portpatrick",
          "code": "O",
          "station_name": "Portpatrick",
          "country": "United Kingdom",
          "nav_area": "I",
          "latitude": 54.8438,
          "longitude": -5.1243,
          "coverage_label": "Irish Sea and western UK approaches",
          "message_count": 2,
          "basis": "regional-context",
          "matched_terms": [
            "MALIN"
          ]
        },
        {
          "key": "netherlands_coastguard",
          "code": "P",
          "station_name": "Netherlands Coastguard Radio",
          "country": "Netherlands",
          "nav_area": "I",
          "latitude": 52.9177,
          "longitude": 4.739,
          "coverage_label": "Dutch EEZ and southern North Sea",
          "message_count": 2,
          "basis": "station-signature",
          "matched_terms": [
            "DUTCH EEZ"
          ]
        }
      ],
      "code_rows": [
        {
          "code": "G",
          "message_count": 36,
          "resolved_station_names": [
            "Cullercoats"
          ],
          "unresolved_message_count": 13
        },
        {
          "code": "T",
          "message_count": 31,
          "resolved_station_names": [
            "Oostende Radio"
          ],
          "unresolved_message_count": 15
        },
        {
          "code": "S",
          "message_count": 16,
          "resolved_station_names": [
            "Pinneberg"
          ],
          "unresolved_message_count": 3
        },
        {
          "code": "P",
          "message_count": 9,
          "resolved_station_names": [
            "Oostende (Thames Approaches relay)",
            "Netherlands Coastguard Radio"
          ],
          "unresolved_message_count": 4
        },
        {
          "code": "E",
          "message_count": 4,
          "resolved_station_names": [
            "Niton"
          ],
          "unresolved_message_count": 2
        },
        {
          "code": "O",
          "message_count": 3,
          "resolved_station_names": [
            "Portpatrick"
          ],
          "unresolved_message_count": 1
        },
        {
          "code": "V",
          "message_count": 3,
          "resolved_station_names": [
            "Oostende (Thames Approaches relay)"
          ],
          "unresolved_message_count": 1
        },
        {
          "code": "K",
          "message_count": 2,
          "resolved_station_names": [
            "Niton (France relay)"
          ],
          "unresolved_message_count": 0
        },
        {
          "code": "J",
          "message_count": 2,
          "resolved_station_names": [
            "Niton (France relay)"
          ],
          "unresolved_message_count": 1
        },
        {
          "code": "C",
          "message_count": 1,
          "resolved_station_names": [
            "Oostende Radio"
          ],
          "unresolved_message_count": 0
        },
        {
          "code": "R",
          "message_count": 1,
          "resolved_station_names": [],
          "unresolved_message_count": 1
        },
        {
          "code": "L",
          "message_count": 1,
          "resolved_station_names": [],
          "unresolved_message_count": 1
        }
      ],
      "station_reference_source_label": "ITU List IV coast station table (2025)",
      "station_reference_source_url": "https://www.itu.int/en/ITU-R/terrestrial/mars/Documents/ListIV_User%20Guide%20and%20Reference%20Tables_2025.pdf",
      "global_map_source_label": "WMO NAVTEX stations map",
      "global_map_source_url": "https://wmo.int/navtex-stations"
    }
  },
  "sections": {
    "executive_summary": [
      "The window contains 109 messages; dominant B1 codes were G (36), T (31), S (16); keyword concentration led by fog (12), warning (7), survey (4), gale (3).",
      "[EA46] navigational warning for Unresolved B1 code E. Readable text says: South cardinal buoy 50-01.2n ' 85. Decoding is partial rather than complete.",
      "[unknown] operational notice for Unresolved B1 code T. Readable text says: Ease cardinal buoy 51-5 .3n 007-48.5w unlit.",
      "[unknown] operational notice for United Kingdom - English Channel and western approaches. This is a weather bulletin; readable sections mention gales, ice, rain across the covered waters.",
      "No direct mentions were found in this corpus window."
    ],
    "main_developments": [
      "[EA46] navigational warning for Unresolved B1 code E. Readable text says: South cardinal buoy 50-01.2n ' 85. Decoding is partial rather than complete.",
      "[unknown] operational notice for Unresolved B1 code T. Readable text says: Ease cardinal buoy 51-5 .3n 007-48.5w unlit.",
      "[unknown] operational notice for United Kingdom - English Channel and western approaches. This is a weather bulletin; readable sections mention gales, ice, rain across the covered waters.",
      "[TA04] navigational warning for Belgium - Belgian coast and southern North Sea. Readable text says: Special purpose buoy kycn, y. fl 5s, 51-09.88n aremppe established. Decoding is partial rather than complete.",
      "[unknown] operational notice for Unresolved B1 code T. Readable text says: Lightbuoy vg5, 51-24.7 n 002 8e drifting. Decoding is partial rather than complete.",
      "[unknown] operational notice for Belgium - Belgian coast and southern North Sea. Readable text sets local operating restrictions, including anchoring, fishing, or towing limits. Decoding is partial rather than complete.",
      "[TA27] navigational warning for Belgium - Belgian coast and southern North Sea. Readable text says: Shipping requeste t to anchor nzymhzm fjdmfmmyu/1 00 me o. Decoding is partial rather than complete.",
      "[SA79] navigational warning for Germany - German Bight and German North Sea. Readable text says: 5 sm lighting inoperative across the entire wind farm. Decoding is partial rather than complete."
    ],
    "weather_and_sea_state": [
      "[unknown] operational notice for United Kingdom - English Channel and western approaches. This is a weather bulletin; readable sections mention gales, ice, rain across the covered waters.",
      "[GA899] navigational warning for Unresolved B1 code G. Readable text reports a fog signal outage. Decoding is partial rather than complete.",
      "[unknown] operational notice for Unresolved B1 code T. Readable text reports a fog signal outage near 53-11.9N 002-29.1E. Decoding is partial rather than complete.",
      "[VA15] navigational warning for Belgium / United Kingdom - Thames approaches and Dover approaches. This is a weather bulletin; readable sections mention fog across the covered waters. Decoding is partial rather than complete.",
      "[PE79] weather forecast for Netherlands - Dutch EEZ and southern North Sea. This is a weather bulletin; readable sections mention fog, rain across the covered waters. Decoding is partial rather than complete."
    ],
    "navigation_and_safety_alerts": [
      "[EA46] navigational warning for Unresolved B1 code E. Readable text says: South cardinal buoy 50-01.2n ' 85. Decoding is partial rather than complete.",
      "[unknown] operational notice for Unresolved B1 code T. Readable text says: Ease cardinal buoy 51-5 .3n 007-48.5w unlit.",
      "[unknown] operational notice for United Kingdom - English Channel and western approaches. This is a weather bulletin; readable sections mention gales, ice, rain across the covered waters.",
      "[TA04] navigational warning for Belgium - Belgian coast and southern North Sea. Readable text says: Special purpose buoy kycn, y. fl 5s, 51-09.88n aremppe established. Decoding is partial rather than complete.",
      "[unknown] operational notice for Unresolved B1 code T. Readable text says: Lightbuoy vg5, 51-24.7 n 002 8e drifting. Decoding is partial rather than complete.",
      "[unknown] operational notice for Belgium - Belgian coast and southern North Sea. Readable text sets local operating restrictions, including anchoring, fishing, or towing limits. Decoding is partial rather than complete.",
      "[TA27] navigational warning for Belgium - Belgian coast and southern North Sea. Readable text says: Shipping requeste t to anchor nzymhzm fjdmfmmyu/1 00 me o. Decoding is partial rather than complete.",
      "[SA79] navigational warning for Germany - German Bight and German North Sea. Readable text says: 5 sm lighting inoperative across the entire wind farm. Decoding is partial rather than complete."
    ],
    "electronic_interference_and_navigation_integrity": [
      "[GA899] navigational warning for Unresolved B1 code G. Readable text reports a fog signal outage. Decoding is partial rather than complete.",
      "[unknown] operational notice for Unresolved B1 code T. Readable text reports a fog signal outage near 53-11.9N 002-29.1E. Decoding is partial rather than complete.",
      "[VA15] navigational warning for Belgium / United Kingdom - Thames approaches and Dover approaches. This is a weather bulletin; readable sections mention fog across the covered waters. Decoding is partial rather than complete.",
      "[GA89] navigational warning for United Kingdom - North Sea and north-east UK coast. Readable text reports a fog signal outage. Decoding is partial rather than complete."
    ],
    "special_operations_and_military_activity": [
      "[TA25] navigational warning for Belgium - Belgian coast and southern North Sea. Readable text says: Gunnery exercises in the great sector of lombardsijde 03 apr 20 3 6 . cmgchfsm. Decoding is partial rather than complete.",
      "[TA25] navigational warning for Belgium - Belgian coast and southern North Sea. Readable text says: De panne-oosten gunnery exercises in the great sector of lombardsijde 03 apr 2026 from 0700 until 1030 utc gunnery sector s listening on chan 16 and 74. Decoding is partial rather than complete."
    ],
    "focus_region": [
      "No direct mentions were found in this corpus window."
    ],
    "confidence_and_gaps": [
      "Decode quality across the window was high=27, medium=47, low=35.",
      "51 older rebroadcast notices were removed because their internal issue times predated the 24-hour operating window.",
      "Published timestamps reflect reception time in the received corpus, not necessarily original notice issue time.",
      "Repeated or rebroadcast notices can persist inside the rolling window; message IDs are retained for traceability.",
      "35 messages were classified as low decode quality and may contain damaged titles or coordinates."
    ]
  }
}