14.6 meter shoal reported in vicinity 63-23.87S 057-01.93W
Southern Ocean · HYDROLANT 1227/17
What this record establishes
Archived notice · 2017-06-10 14:39Z
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) · NAVAREA VI 250/17 171452Z APR 17.. Issued 2017-04-17 14:52Z. 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
- Southern Ocean. The parsed report position is -63.398, -57.032. It is a position in the source message, not a live location. Check the original wording for limits and qualifications.
Related notices and cancellation links
- Cancel HYDROLANT 1227/17 and this msglater cancellation notice
Current notices and reporting history in the Southern Ocean →
- issued
- 2017-04-17 14:52Z
- status
- Archived notice
- authority
- NAVAREA VI 250/17 171452Z APR 17.
- NAVAREA
- NAVAREA VI · named as the source of this relay
- sea
- Southern Ocean
- position
- -63.398, -57.032
- source
- NGA MSI broadcast-warn JSON (archive, frozen 2024-05) · first seen 2026-08-17 13:38Z
Original warning text
WEDDELL SEA. ANTARCTICA. DNC 29. CHART 29105. 14.6 METER SHOAL REPORTED IN VICINITY 63-23.87S 057-01.93W.
Reading this warning
- DNC (Digital Nautical Chart)
- A reference to one of the regions of NGA's Digital Nautical Chart, used to tell the reader which charts a warning affects.
- Chart reference
- The number of the nautical chart on which the reported position lies.
- Shoal / reported depth
- Water shallower than the chart shows — a newly found shoal, a reported depth, or less water than charted.
- 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.
Collected reports in this area · wrecks & obstructions
8 within 180 nm since 2006 · 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.
- Significantly less water than charted reported in 61-40.26S 060-44.82W2023-11-08
- 12 meter shoals reported in: a. 64-30.90S 062-09.30W2022-12-22
- Uncovered rock reported in 62-27.4S 060-16.8W2019-12-28
- Vessel tarka aground in 64-41.21S 062-38.38W2015-12-04
- Nga chart 29101 (6TH ed)2011-05-03
- Nga chart 29105 (5TH ed)2007-11-25
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
No other collected notice is currently listed in force within this radius. This does not establish safe conditions.
Worldwide in the collected sources
38 wrecks & obstructions listed in force · see all
Record snapshot 2026-10-02 06:09Z; source collection times vary.
Wrecks
Dangerous wrecks, shoals and submerged obstructions. All current wrecks & obstructions →
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.