Other

As previously notified by HYDROLANT 294/10 and 322/10 mariners using ecdis are advised not to rely solely on…

Ecdis System · HYDROLANT 1588/10

What this record establishes

Archived notice · 2010-10-09 09:17Z

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 I 201433Z AUG 10; PVWA.. Issued 2010-08-22 22:20Z. 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
Ecdis System. No usable coordinates were parsed; a location-based nearby search is unavailable. Check the original wording for limits and qualifications.
issued
2010-08-22 22:20Z
status
Archived notice
authority
NAVAREA I 201433Z AUG 10; PVWA.
NAVAREA
NAVAREA I · named as the source of this relay
source
NGA MSI broadcast-warn JSON (archive, frozen 2024-05) · first seen 2026-08-17 13:38Z

Original warning text

ECDIS SYSTEM.
1. AS PREVIOUSLY NOTIFIED BY HYDROLANT
   294/10 AND 322/10 MARINERS USING ECDIS
   ARE ADVISED NOT TO RELY SOLELY ON
   AUTOMATED VOYAGE PLANNING AND MONITORING
   CHECKS AND ALARMS. IT IS RECOMMENDED
   THAT MARINERS UNDERTAKE CAREFUL VISUAL
   INSPECTION OF THE ENTIRE PLANNED ROUTE
   TO CONFIRM THAT IT, AND ANY DEVIATIONS
   FROM IT, IS CLEAR OF DANGERS. THE ECDIS
   DISPLAY SHOULD BE CONFIGURED TO DISPLAY
   ALL SOUNDINGS DURING THIS INSPECTION.
2. PARTICULAR CARE SHOULD BE TAKEN WHEN
   PLANNED ROUTES CROSS AREAS WHERE ONLY
   SMALL SCALE ENCS (USAGE BANDS 1 AND 2)
   ARE AVAILABLE. IN SOME DISPLAY
   CONFIGURATIONS, SUCH AS WHEN NO NAMES
   ARE SHOWN, SMALL ISLANDS AND OTHER POINT
   FEATURES MAY BE DIFFICULT TO IDENTIFY OR
   COULD BE OBSCURED BY SURROUNDING DEPTH
   CONTOURS. SOME ECDIS SYSTEMS APPEAR ONLY
   TO UNDERTAKE ROUTE CHECK FUNCTIONS ON
   LARGER SCALE ENCS AND THEREFORE ALARMS
   MIGHT NOT ACTIVATE. THIS MAY NOT BE
   CLEARLY INDICATED ON THE ECDIS DISPLAY.
3. THE INTERNATIONAL HYDROGRAPHIC
   ORGANIZATION (IHO) IS LEADING TECHNICAL
   ACTION TO INVESTIGATE THESE MATTERS IN
   CONSULTATION WITH ECDIS EQUIPMENT
   MANUFACTURERS. FURTHER INFORMATION WILL
   BE MADE AVAILABLE THROUGH NOTICES TO
   MARINERS.
4. THIS ERROR DOES NOT EFFECT DNC.

Reading this warning

HYDROLANT
The U.S. long-range warning series for Atlantic waters outside NAVAREA IV, including the eastern Atlantic, the Mediterranean and adjoining seas.
Notice to Mariners
The weekly publication of permanent chart corrections — the slower, permanent counterpart of a navigational warning.

All warning terms →

Nearby notices listed in force · within 120 nm

No parsed position is available for this comparison.

Worldwide in the collected sources

21 other warnings listed in force · see all

Record snapshot 2026-10-04 01:57Z; source collection times vary.

Other

Everything the classifier did not place elsewhere. All current other warnings →

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.