{
  "title": "NAVTEX Review",
  "generated_at_utc": "2026-04-07T00:12:03.902106+00:00",
  "lookback_hours": 24,
  "focus_region": "Strait of Hormuz",
  "focus_hit_count": 0,
  "message_count": 121,
  "latest_reception": "2026-04-07 02:50:46",
  "source_url": "https://navtex.lv/",
  "stale_issue_filtered_count": 39,
  "max_notice_age_hours": 24,
  "overview": {
    "message_count": 121,
    "counts_by_code": {
      "T": 26,
      "G": 20,
      "S": 14,
      "J": 14,
      "K": 8,
      "E": 8,
      "V": 5,
      "F": 5,
      "U": 4,
      "Q": 3,
      "P": 3,
      "L": 3,
      "O": 2,
      "N": 2,
      "X": 1,
      "M": 1,
      "H": 1,
      "A": 1
    },
    "counts_by_area": {
      "T": 26,
      "G": 20,
      "S": 14,
      "J": 14,
      "K": 8,
      "E": 8,
      "V": 5,
      "F": 5,
      "U": 4,
      "Q": 3,
      "P": 3,
      "L": 3,
      "O": 2,
      "N": 2,
      "X": 1,
      "M": 1,
      "H": 1,
      "A": 1
    },
    "keyword_counts": {
      "fog": 4,
      "warning": 4,
      "gale": 3,
      "exercise": 3,
      "ais": 3,
      "ice": 1,
      "gnss": 1
    },
    "station_coverage": {
      "resolved_message_count": 33,
      "unresolved_message_count": 88,
      "resolved_station_count": 10,
      "station_rows": [
        {
          "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": 7,
          "basis": "station-signature",
          "matched_terms": [
            "AVURNAV CHERBOURG",
            "CHERBOURG"
          ]
        },
        {
          "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": 6,
          "basis": "regional-context",
          "matched_terms": [
            "HUMBER",
            "ORWELL GAS FIELD"
          ]
        },
        {
          "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": "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": 4,
          "basis": "station-signature",
          "matched_terms": [
            "NAVTEX HAMBURG"
          ]
        },
        {
          "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": 3,
          "basis": "regional-context",
          "matched_terms": [
            "WIGHT",
            "LUNDY",
            "PORTLAND"
          ]
        },
        {
          "key": "split",
          "code": "Q",
          "station_name": "Split",
          "country": "Croatia",
          "nav_area": "III",
          "latitude": 43.1757,
          "longitude": 16.423,
          "coverage_label": "Adriatic Sea",
          "message_count": 2,
          "basis": "station-signature",
          "matched_terms": [
            "SPLIT RADIO"
          ]
        },
        {
          "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": 2,
          "basis": "station-signature",
          "matched_terms": [
            "OOSTENDE",
            "OOSTENDERADIO"
          ]
        },
        {
          "key": "mondolfo",
          "code": "U",
          "station_name": "Mondolfo",
          "country": "Italy",
          "nav_area": "III",
          "latitude": 43.7418,
          "longitude": 13.1388,
          "coverage_label": "Adriatic Sea and central Italian coast",
          "message_count": 2,
          "basis": "regional-context",
          "matched_terms": [
            "ADRIATIC",
            "OTRANTO"
          ]
        },
        {
          "key": "irakleio",
          "code": "H",
          "station_name": "Irakleio",
          "country": "Greece",
          "nav_area": "III",
          "latitude": 35.3222,
          "longitude": 25.7487,
          "coverage_label": "Eastern Mediterranean and Crete",
          "message_count": 1,
          "basis": "station-signature",
          "matched_terms": [
            "IRAKLEIO"
          ]
        },
        {
          "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": 1,
          "basis": "regional-context",
          "matched_terms": [
            "HEBRIDES"
          ]
        }
      ],
      "code_rows": [
        {
          "code": "T",
          "message_count": 26,
          "resolved_station_names": [
            "Oostende Radio",
            "Split"
          ],
          "unresolved_message_count": 23
        },
        {
          "code": "G",
          "message_count": 20,
          "resolved_station_names": [
            "Cullercoats"
          ],
          "unresolved_message_count": 14
        },
        {
          "code": "S",
          "message_count": 14,
          "resolved_station_names": [
            "Pinneberg",
            "Oostende (Thames Approaches relay)"
          ],
          "unresolved_message_count": 9
        },
        {
          "code": "J",
          "message_count": 14,
          "resolved_station_names": [],
          "unresolved_message_count": 14
        },
        {
          "code": "K",
          "message_count": 8,
          "resolved_station_names": [
            "Niton (France relay)"
          ],
          "unresolved_message_count": 1
        },
        {
          "code": "E",
          "message_count": 8,
          "resolved_station_names": [
            "Niton"
          ],
          "unresolved_message_count": 5
        },
        {
          "code": "V",
          "message_count": 5,
          "resolved_station_names": [
            "Oostende (Thames Approaches relay)"
          ],
          "unresolved_message_count": 2
        },
        {
          "code": "F",
          "message_count": 5,
          "resolved_station_names": [],
          "unresolved_message_count": 5
        },
        {
          "code": "U",
          "message_count": 4,
          "resolved_station_names": [
            "Mondolfo"
          ],
          "unresolved_message_count": 2
        },
        {
          "code": "Q",
          "message_count": 3,
          "resolved_station_names": [
            "Split"
          ],
          "unresolved_message_count": 2
        },
        {
          "code": "P",
          "message_count": 3,
          "resolved_station_names": [],
          "unresolved_message_count": 3
        },
        {
          "code": "L",
          "message_count": 3,
          "resolved_station_names": [],
          "unresolved_message_count": 3
        },
        {
          "code": "O",
          "message_count": 2,
          "resolved_station_names": [
            "Portpatrick"
          ],
          "unresolved_message_count": 1
        },
        {
          "code": "N",
          "message_count": 2,
          "resolved_station_names": [
            "Oostende (Thames Approaches relay)"
          ],
          "unresolved_message_count": 1
        },
        {
          "code": "X",
          "message_count": 1,
          "resolved_station_names": [],
          "unresolved_message_count": 1
        },
        {
          "code": "M",
          "message_count": 1,
          "resolved_station_names": [],
          "unresolved_message_count": 1
        },
        {
          "code": "H",
          "message_count": 1,
          "resolved_station_names": [
            "Irakleio"
          ],
          "unresolved_message_count": 0
        },
        {
          "code": "A",
          "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 121 messages; dominant B1 codes were T (26), G (20), S (14); keyword concentration led by fog (4), warning (4), gale (3), exercise (3).",
      "[unknown] operational notice 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.",
      "[UA80] navigational warning for Unresolved B1 code U. This is a weather bulletin; readable sections mention ice across the covered waters. Decoding is partial rather than complete.",
      "[SA80] navigational warning for Unresolved B1 code S. Readable text says: 'eider' lightbuoy 54-16n 008-29e. Decoding is partial rather than complete.",
      "No direct mentions were found in this corpus window."
    ],
    "main_developments": [
      "[unknown] operational notice 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.",
      "[UA80] navigational warning for Unresolved B1 code U. This is a weather bulletin; readable sections mention ice across the covered waters. Decoding is partial rather than complete.",
      "[SA80] navigational warning for Unresolved B1 code S. Readable text says: 'eider' lightbuoy 54-16n 008-29e. Decoding is partial rather than complete.",
      "[OB26] meteorological warning for United Kingdom - Irish Sea and western UK approaches. This is a weather bulletin; readable sections mention ice across the covered waters. Decoding is partial rather than complete.",
      "[KA28] navigational warning for Unresolved B1 code K. Readable text sets local operating restrictions near 50-10.84N 001-29.44E; 50-19.01N 001-12.02E, including anchoring, fishing, or towing limits. Decoding is partial rather than complete.",
      "[KA29] navigational warning for United Kingdom / France - Channel Islands and north-east French coast. Readable text reports an aid-to-navigation fault.",
      "[GA71] navigational warning for United Kingdom - North Sea and north-east UK coast. The received text is too corrupted to decode safely. No reliable plain-language extraction was possible.",
      "[EA21] navigational warning for United Kingdom - English Channel and western approaches. Readable text says: Spaniel buoy 51-38.1n 004-39.7w unlit. Decoding is partial rather than complete."
    ],
    "weather_and_sea_state": [
      "[unknown] operational notice 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.",
      "[unknown] operational notice for Croatia - Adriatic Sea. Readable text says: Weather lcssphfm wyfhf mfjjcpwml mhdpm yfpb dna aj al centeyvj sfhb logxhgrhcgcpodc l g0 3 -43- 09''. : . , (8!) 5. Decoding is partial rather than complete.",
      "[OB26] meteorological warning for United Kingdom - Irish Sea and western UK approaches. This is a weather bulletin; readable sections mention ice across the covered waters. Decoding is partial rather than complete.",
      "[FA88] navigational warning for Unresolved B1 code F. This is a weather bulletin; readable sections mention ice across the covered waters. Decoding is partial rather than complete.",
      "[EE07] weather forecast for United Kingdom - English Channel and western approaches. This is a weather bulletin; readable sections mention gales, ice, rain across the covered waters. Decoding is partial rather than complete."
    ],
    "navigation_and_safety_alerts": [
      "[unknown] operational notice 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.",
      "[UA80] navigational warning for Unresolved B1 code U. This is a weather bulletin; readable sections mention ice across the covered waters. Decoding is partial rather than complete.",
      "[SA80] navigational warning for Unresolved B1 code S. Readable text says: 'eider' lightbuoy 54-16n 008-29e. Decoding is partial rather than complete.",
      "[OB26] meteorological warning for United Kingdom - Irish Sea and western UK approaches. This is a weather bulletin; readable sections mention ice across the covered waters. Decoding is partial rather than complete.",
      "[KA28] navigational warning for Unresolved B1 code K. Readable text sets local operating restrictions near 50-10.84N 001-29.44E; 50-19.01N 001-12.02E, including anchoring, fishing, or towing limits. Decoding is partial rather than complete.",
      "[KA29] navigational warning for United Kingdom / France - Channel Islands and north-east French coast. Readable text reports an aid-to-navigation fault.",
      "[GA71] navigational warning for United Kingdom - North Sea and north-east UK coast. The received text is too corrupted to decode safely. No reliable plain-language extraction was possible.",
      "[EA21] navigational warning for United Kingdom - English Channel and western approaches. Readable text says: Spaniel buoy 51-38.1n 004-39.7w unlit. Decoding is partial rather than complete."
    ],
    "electronic_interference_and_navigation_integrity": [
      "[unknown] operational notice for Unresolved B1 code L. Readable text says: Barents sea.",
      "[unknown] operational notice for Greece - Eastern Mediterranean and Crete. Readable text says: Sou h j mvyf f zmfpy phlgt. lo poocrstorm. Decoding is partial rather than complete.",
      "[FA69] navigational warning for Unresolved B1 code F. Readable text says: Gnss, ais, radar w wz jmfhpy py pmonzljpy pwmfmyq o g yfpyjmw fj wmhzmp pyxfj m chfzonwmlp. Decoding is partial rather than complete.",
      "[VA75] navigational warning for Belgium / United Kingdom - Thames approaches and Dover approaches. Readable text reports a fog signal outage. Decoding is partial rather than complete."
    ],
    "special_operations_and_military_activity": [
      "[UA81] navigational warning for Italy - Adriatic Sea and central Italian coast. Readable text says: Military activitfp mfc jpmypmfm yzhmz. 660. 006! 9 !6 .6 0 . ) :202.) . $0. ' !. ! a. - 40 25'31''n - 18 15'30''e, b. - 40 30'20''n -.:!) ) 7/ 5 (93/2 v kbm btu. Decoding is partial rather than complete.",
      "[KA40] navigational warning for United Kingdom / France - Channel Islands and north-east French coast. Readable text says: 1. firing exercise.",
      "[JA42] navigational warning for Unresolved B1 code J. Readable text says: Due to military exercises zone is closed for shipping and fishery. Decoding is partial rather than complete.",
      "[KA40] navigational warning for United Kingdom / France - Channel Islands and north-east French coast. Readable text says: ! 9, p fsmz pyhfzjon firing exercise. 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=11, medium=26, low=84.",
      "39 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.",
      "84 messages were classified as low decode quality and may contain damaged titles or coordinates."
    ]
  }
}