{
  "title": "NAVTEX Review",
  "generated_at_utc": "2026-03-31T07:12:02.584238+00:00",
  "lookback_hours": 24,
  "focus_region": "Strait of Hormuz",
  "focus_hit_count": 0,
  "message_count": 123,
  "latest_reception": "2026-03-31 10:10:23",
  "source_url": "https://navtex.lv/",
  "stale_issue_filtered_count": 37,
  "max_notice_age_hours": 24,
  "overview": {
    "message_count": 123,
    "counts_by_code": {
      "G": 31,
      "T": 19,
      "E": 15,
      "J": 9,
      "W": 8,
      "U": 8,
      "S": 6,
      "V": 5,
      "Q": 5,
      "R": 4,
      "O": 3,
      "P": 2,
      "N": 2,
      "A": 1,
      "M": 1,
      "L": 1,
      "K": 1,
      "C": 1,
      "X": 1
    },
    "counts_by_area": {
      "G": 31,
      "T": 19,
      "E": 15,
      "J": 9,
      "W": 8,
      "U": 8,
      "S": 6,
      "V": 5,
      "Q": 5,
      "R": 4,
      "O": 3,
      "P": 2,
      "N": 2,
      "A": 1,
      "M": 1,
      "L": 1,
      "K": 1,
      "C": 1,
      "X": 1
    },
    "keyword_counts": {
      "warning": 20,
      "fog": 11,
      "gale": 8,
      "survey": 4,
      "exercise": 3,
      "storm": 2,
      "drifting": 1,
      "ice": 1,
      "ais": 1
    },
    "station_coverage": {
      "resolved_message_count": 62,
      "unresolved_message_count": 61,
      "resolved_station_count": 14,
      "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": 19,
          "basis": "station-signature",
          "matched_terms": [
            "DOGGER",
            "CROMARTY",
            "TYNE"
          ]
        },
        {
          "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": 8,
          "basis": "station-signature",
          "matched_terms": [
            "MONDOLFO RADIO"
          ]
        },
        {
          "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": 6,
          "basis": "station-signature",
          "matched_terms": [
            "NCC 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": 5,
          "basis": "regional-context",
          "matched_terms": [
            "LUNDY"
          ]
        },
        {
          "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": 5,
          "basis": "station-signature",
          "matched_terms": [
            "OOSTENDE",
            "OOSTENDERADIO"
          ]
        },
        {
          "key": "cross_la_garde",
          "code": "W",
          "station_name": "CROSS La Garde",
          "country": "France",
          "nav_area": "III",
          "latitude": 43.1043,
          "longitude": 5.9915,
          "coverage_label": "Provence, Ligurian Sea and western Mediterranean",
          "message_count": 5,
          "basis": "station-signature",
          "matched_terms": [
            "SARDAIGNE"
          ]
        },
        {
          "key": "split",
          "code": "Q",
          "station_name": "Split",
          "country": "Croatia",
          "nav_area": "III",
          "latitude": 43.1757,
          "longitude": 16.423,
          "coverage_label": "Adriatic Sea",
          "message_count": 4,
          "basis": "station-signature",
          "matched_terms": [
            "SPLIT RADIO"
          ]
        },
        {
          "key": "la_maddalena",
          "code": "R",
          "station_name": "La Maddalena",
          "country": "Italy",
          "nav_area": "III",
          "latitude": 41.2203,
          "longitude": 9.393,
          "coverage_label": "Tyrrhenian Sea and Sardinia approaches",
          "message_count": 3,
          "basis": "station-signature",
          "matched_terms": [
            "LA MADDALENA"
          ]
        },
        {
          "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": 2,
          "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": 1,
          "basis": "station-signature-fallback",
          "matched_terms": [
            "AVURNAV CHERBOURG",
            "CHERBOURG"
          ]
        },
        {
          "key": "rogaland",
          "code": "L",
          "station_name": "Rogaland Radio",
          "country": "Norway",
          "nav_area": "I",
          "latitude": 58.6487,
          "longitude": 5.6097,
          "coverage_label": "South-west Norwegian coast",
          "message_count": 1,
          "basis": "regional-context",
          "matched_terms": [
            "SKAGERRAK"
          ]
        },
        {
          "key": "orlandet",
          "code": "N",
          "station_name": "Orlandet",
          "country": "Norway",
          "nav_area": "I",
          "latitude": 63.6617,
          "longitude": 9.5467,
          "coverage_label": "Norwegian Sea and central Norwegian coast",
          "message_count": 1,
          "basis": "station-signature",
          "matched_terms": [
            "NORWEGIAN GALE WARNING"
          ]
        },
        {
          "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": [
            "IRISH SEA"
          ]
        },
        {
          "key": "sellia_marina",
          "code": "V",
          "station_name": "Sellia Marina",
          "country": "Italy",
          "nav_area": "III",
          "latitude": 38.8702,
          "longitude": 16.718,
          "coverage_label": "Ionian Sea and Strait of Messina",
          "message_count": 1,
          "basis": "station-signature",
          "matched_terms": [
            "SELLIA MARINA"
          ]
        }
      ],
      "code_rows": [
        {
          "code": "G",
          "message_count": 31,
          "resolved_station_names": [
            "Cullercoats"
          ],
          "unresolved_message_count": 12
        },
        {
          "code": "T",
          "message_count": 19,
          "resolved_station_names": [
            "Oostende Radio",
            "Oostende (Thames Approaches relay)"
          ],
          "unresolved_message_count": 13
        },
        {
          "code": "E",
          "message_count": 15,
          "resolved_station_names": [
            "Niton"
          ],
          "unresolved_message_count": 10
        },
        {
          "code": "J",
          "message_count": 9,
          "resolved_station_names": [],
          "unresolved_message_count": 9
        },
        {
          "code": "W",
          "message_count": 8,
          "resolved_station_names": [
            "CROSS La Garde"
          ],
          "unresolved_message_count": 3
        },
        {
          "code": "U",
          "message_count": 8,
          "resolved_station_names": [
            "Mondolfo"
          ],
          "unresolved_message_count": 0
        },
        {
          "code": "S",
          "message_count": 6,
          "resolved_station_names": [
            "Pinneberg"
          ],
          "unresolved_message_count": 0
        },
        {
          "code": "V",
          "message_count": 5,
          "resolved_station_names": [
            "Oostende (Thames Approaches relay)",
            "Sellia Marina"
          ],
          "unresolved_message_count": 3
        },
        {
          "code": "Q",
          "message_count": 5,
          "resolved_station_names": [
            "Split"
          ],
          "unresolved_message_count": 1
        },
        {
          "code": "R",
          "message_count": 4,
          "resolved_station_names": [
            "La Maddalena"
          ],
          "unresolved_message_count": 1
        },
        {
          "code": "O",
          "message_count": 3,
          "resolved_station_names": [
            "Portpatrick"
          ],
          "unresolved_message_count": 2
        },
        {
          "code": "P",
          "message_count": 2,
          "resolved_station_names": [],
          "unresolved_message_count": 2
        },
        {
          "code": "N",
          "message_count": 2,
          "resolved_station_names": [
            "Orlandet"
          ],
          "unresolved_message_count": 1
        },
        {
          "code": "A",
          "message_count": 1,
          "resolved_station_names": [
            "Niton (France relay)"
          ],
          "unresolved_message_count": 0
        },
        {
          "code": "M",
          "message_count": 1,
          "resolved_station_names": [],
          "unresolved_message_count": 1
        },
        {
          "code": "L",
          "message_count": 1,
          "resolved_station_names": [
            "Rogaland Radio"
          ],
          "unresolved_message_count": 0
        },
        {
          "code": "K",
          "message_count": 1,
          "resolved_station_names": [],
          "unresolved_message_count": 1
        },
        {
          "code": "C",
          "message_count": 1,
          "resolved_station_names": [],
          "unresolved_message_count": 1
        },
        {
          "code": "X",
          "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 123 messages; dominant B1 codes were G (31), T (19), E (15); keyword concentration led by warning (20), fog (11), gale (8), survey (4).",
      "[SA42] navigational warning for Germany - German Bight and German North Sea. Readable text reports survey operations near 54-46.5N 006-09.1E and implies local caution around the work area. Decoding is partial rather than complete.",
      "[PA17] navigational warning for Unresolved B1 code P. Readable text says: Buoy wp1 53-19n 004-03e temporarily withdrawn.",
      "[unknown] operational notice for United Kingdom / France - Channel Islands and north-east French coast. Readable text says: Light buoy a light unli. Decoding is partial rather than complete.",
      "No direct mentions were found in this corpus window."
    ],
    "main_developments": [
      "[SA42] navigational warning for Germany - German Bight and German North Sea. Readable text reports survey operations near 54-46.5N 006-09.1E and implies local caution around the work area. Decoding is partial rather than complete.",
      "[PA17] navigational warning for Unresolved B1 code P. Readable text says: Buoy wp1 53-19n 004-03e temporarily withdrawn.",
      "[unknown] operational notice for United Kingdom / France - Channel Islands and north-east French coast. Readable text says: Light buoy a light unli. Decoding is partial rather than complete.",
      "[unknown] operational notice for Unresolved B1 code T. Readable text says: Forecast valid 24 974' ( .!2/ '0.! . 0 06 . 06. Decoding is partial rather than complete.",
      "[GA82] navigational warning for United Kingdom - North Sea and north-east UK coast. Readable text says: Beryl spm3 buoy 59-31.7n 001-33.5e temporarily removed. 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 near 57-29.4N 001-21.1W. Decoding is partial rather than complete.",
      "[GA61] navigational warning for United Kingdom - North Sea and north-east UK coast. This is a weather bulletin; readable sections mention fog across the covered waters. Decoding is partial rather than complete.",
      "[GA94] navigational warning for United Kingdom - North Sea and north-east UK coast. Readable text reports a fog signal outage."
    ],
    "weather_and_sea_state": [
      "[GA89] navigational warning for United Kingdom - North Sea and north-east UK coast. Readable text reports a fog signal outage near 57-29.4N 001-21.1W. Decoding is partial rather than complete.",
      "[GA61] navigational warning for United Kingdom - North Sea and north-east UK coast. This is a weather bulletin; readable sections mention fog across the covered waters. Decoding is partial rather than complete.",
      "[GA94] navigational warning for United Kingdom - North Sea and north-east UK coast. Readable text reports a fog signal outage.",
      "[GA07] navigational warning for United Kingdom - North Sea and north-east UK coast. Readable text reports a fog signal outage near 53-11.9N 002-29.1E.",
      "[VA63] navigational warning for Belgium / United Kingdom - Thames approaches and Dover approaches. Readable text reports a fog signal outage near 52-09.8N 002-33.5E."
    ],
    "navigation_and_safety_alerts": [
      "[SA42] navigational warning for Germany - German Bight and German North Sea. Readable text reports survey operations near 54-46.5N 006-09.1E and implies local caution around the work area. Decoding is partial rather than complete.",
      "[PA17] navigational warning for Unresolved B1 code P. Readable text says: Buoy wp1 53-19n 004-03e temporarily withdrawn.",
      "[unknown] operational notice for United Kingdom / France - Channel Islands and north-east French coast. Readable text says: Light buoy a light unli. Decoding is partial rather than complete.",
      "[unknown] operational notice for Unresolved B1 code T. Readable text says: Forecast valid 24 974' ( .!2/ '0.! . 0 06 . 06. Decoding is partial rather than complete.",
      "[GA82] navigational warning for United Kingdom - North Sea and north-east UK coast. Readable text says: Beryl spm3 buoy 59-31.7n 001-33.5e temporarily removed. 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 near 57-29.4N 001-21.1W. Decoding is partial rather than complete.",
      "[GA61] navigational warning for United Kingdom - North Sea and north-east UK coast. This is a weather bulletin; readable sections mention fog across the covered waters. Decoding is partial rather than complete.",
      "[GA94] navigational warning for United Kingdom - North Sea and north-east UK coast. Readable text reports a fog signal outage."
    ],
    "electronic_interference_and_navigation_integrity": [
      "[GA89] navigational warning for United Kingdom - North Sea and north-east UK coast. Readable text reports a fog signal outage near 57-29.4N 001-21.1W. Decoding is partial rather than complete.",
      "[GA94] navigational warning for United Kingdom - North Sea and north-east UK coast. Readable text reports a fog signal outage.",
      "[GA07] navigational warning for United Kingdom - North Sea and north-east UK coast. Readable text reports a fog signal outage near 53-11.9N 002-29.1E.",
      "[VA63] navigational warning for Belgium / United Kingdom - Thames approaches and Dover approaches. Readable text reports a fog signal outage near 52-09.8N 002-33.5E."
    ],
    "special_operations_and_military_activity": [
      "[TA18] navigational warning for Belgium - Belgian coast and southern North Sea. Readable text says: Gunnery exercises in the large sector of lombardsijde today 31 03 2026 from 0700 until 1530 utc.",
      "[WA24] navigational warning for Unresolved B1 code W. Readable text says: Ing exercise. Decoding is partial rather than complete.",
      "[UA52] navigational warning for Italy - Adriatic Sea and central Italian coast. Readable text says: Coastal warning 001/26 jan 01 (22 re etitpon). Decoding is partial rather than complete.",
      "[UA51] navigational warning for Italy - Adriatic Sea and central Italian coast. Readable text says: Transit, anchorage and fishing are prohibited. Decoding is partial rather than complete.",
      "[UA50] navigational warning for Italy - Adriatic Sea and central Italian coast. Readable text says: Sailing, anchorage and fishing are prohibited. Decoding is partial rather than complete.",
      "[unknown] operational notice for Unresolved B1 code J. Readable text says: Due military exercises zone is closed for shipping and jy. 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=29, medium=57, low=37.",
      "37 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.",
      "37 messages were classified as low decode quality and may contain damaged titles or coordinates."
    ]
  }
}