Seismic survey in progress until further notice by M/V western wave and M/V western horizon towing two 4000…
Persian Gulf · HYDROPAC 1159/99
What this record establishes
Archived notice · 1999-11-01 09:05Z
This notice comes from the historical archive. Its archived status does not establish when or how the reported situation ended.
- Source and dates
- NGA MSI broadcast-warn JSON (archive, frozen 2024-05) · MENAS 118&119/99 31 OCT 1999. Issued 1999-10-31 10:25Z. First collected 2026-08-17 13:38Z; last seen in collection 2026-08-17 15:46Z. Collection dates record ingestion, not a new incident or a fresh field observation.
- Location covered
- Persian Gulf. The map shows an area described by the warning; the listed coordinate is its representative center. Check the original wording for limits and qualifications.
Related notices and cancellation links
- issued
- 1999-10-31 10:25Z
- status
- Archived notice
- authority
- MENAS 118&119/99 31 OCT 1999
- issued by
- MENAS
- sea
- Persian Gulf
- position
- 28.940, 49.116
- vessels
- M/V WESTERN HORIZON · 7 messagesM/V WESTERN WAVE · 12 messages
- source
- NGA MSI broadcast-warn JSON (archive, frozen 2024-05) · first seen 2026-08-17 13:38Z
Original warning text
1. SEISMIC SURVEY IN PROGRESS UNTIL FURTHER NOTICE BY M/V WESTERN WAVE AND M/V WESTERN HORIZON TOWING TWO 4000 METER LONG CABLES IN AREA BOUND BY 28-53N 049-10E, 29-00N 049-14E, 29-01N 049-06E, 28-52N 048-59E. 10000 METER BERTH REQUESTED. 2. CANCEL HYDROPAC 1158/99.
Reading this warning
- Seismic survey
- A survey that maps the rock beneath the seabed with sound pulses from air guns, recorded on streamers kilometres long.
- Until further notice
- The operation or danger has no scheduled end; the warning stays in force until a later message cancels it.
- Towed array / streamer
- Equipment towed a long way behind a vessel — sonar, a hydrophone cable, a sampling sled — invisible at the surface.
- Tow / towing
- A vessel towing another vessel, a barge or a structure — slow, hard to manoeuvre, and with a long line between.
- Area bound by
- Introduces a list of positions that are the corners of an area — the polygon the warning applies to.
- Position (degrees and minutes)
- How warnings write positions: degrees, a hyphen, then minutes, with N/S and E/W — 49-40.8N 003-43.8W.
- Wide berth requested
- Keep well clear — or, when a distance is given ("TWO MILE BERTH REQUESTED"), at least that far away.
- Cancellation reference
- A line that cancels an earlier warning by its number, such as CANCEL HYDROLANT 1085/12.
- HYDROPAC
- The U.S. long-range warning series for the Pacific outside NAVAREA XII and for the Indian Ocean, Persian Gulf and adjoining seas.
Collected reports in this area · cable & pipeline work
72 within 180 nm since 1999 · 0 in the last 12 months · 0 listed in force now
Counts include repeat notices about the same situation. NGA archive coverage ends 2024-05; live collection began 2026-08-17. The period between them is incomplete. An empty year is not evidence that no hazards occurred.
- Cable operations in progress until further notice in vicinity 29-19.68N 048-06.18E2023-09-11
- Pipeline operations in progress until 30 sep along trackline joining 28-24.86N 048-32.30E, 28-26.09N…2020-08-18
- Pipeline operations in progress until further notice along trackline joining 28-43.16N 048-22.83E, 28-42.39N…2017-08-09
- Cable repair operations 25 jan until further notice by cableship etisalat in: a. 29-43.24N 048-40.40E2017-01-24
- Cable laying operations in progress until 30 sep by cableship maram along tracklines joining: a. 29-01.07N…2016-09-03
- Seismic survey in progress until 03 sep by M/V gulf horizon, M/V dean andrew, M/V theresa, M/V samaritan,…2014-06-03
Month of issue in the collected archive
All available years combined. Uneven collection and repeat bulletins affect these counts; this chart does not measure the seasonality or probability of incidents.
Nearby notices listed in force · within 120 nm
- Navigation prohibited until further notice in area within 600 meters of 29-13.10N 048-44.42ERestricted · 25.9 nm
- Barge dream 1 sank in 29-14.06N 048-41.22EWrecks · 28.6 nm
- Met tower 28-46.0N 048-26.1E temporarily replaced by yellow buoy, FL(4) 15 sec 5MOther · 37.3 nm
- Navigation prohibited until further notice in area within 600 meters of 28-52.49N 048-21.63ERestricted · 39.9 nm
- Dangerous wreck marked by buoy in 29-05.49N 048-22.09EWrecks · 40.3 nm
- Survey operations 10 aug until further notice by M/V vision 2 in: a. 29-03.09N 048-10.06ESurveys · 49.5 nm
- Odas buoy relocated to 28-49.63N 050-42.93ENav aids · 84.3 nm
Worldwide in the collected sources
23 cable & pipeline work listed in force · see all
Record snapshot 2026-10-03 22:48Z; source collection times vary.
Cable ops
Cable laying, pipeline and seismic operations. All current cable & pipeline work →
Not for navigation. This is a re-rendering of an official navigational warning for awareness; mariners must use official NAVAREA broadcasts and their national MSI service.