Nav aids

Arrecife la blanquilla light 21-32-38N 097-16-50W unlit

Gulf of Mexico · NAVAREA IV 905/20

What this record establishes

Archived notice · 2020-12-18 13:10Z

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) · MEXICO IV 79/20 230340Z SEP 20.. Issued 2020-09-23 08:37Z. 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: Gulf of Mexico. The parsed report position is 21.544, -97.281. It is a position in the source message, not a live location. Check the original wording for limits and qualifications.

Current notices and reporting history in the Gulf of Mexico →

issued: 2020-09-23 08:37Z
status: Archived notice
authority: MEXICO IV 79/20 230340Z SEP 20.
NAVAREA: NAVAREA IV
issued by: MEXICO IV
sea: Gulf of Mexico
position: 21.544, -97.281
source: NGA MSI broadcast-warn JSON (archive, frozen 2024-05) · first seen 2026-08-17 13:38Z

Original warning text

GULF OF MEXICO.
MEXICO.
CHART 28320.
ARRECIFE LA BLANQUILLA LIGHT 21-32-38N 097-16-50W
UNLIT.

Reading this warning

Chart reference: The number of the nautical chart on which the reported position lies.
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.
Unlit / extinguished: A light, buoy or structure that is not showing its charted light.

All warning terms →

Collected reports in this area · aids-to-navigation notices

54 within 180 nm since 2005 · 0 in the last 12 months · 3 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.

Santiaguillo light 19-08.56N 095-48.48W unlit2025-01-16
Punta de piedra light 24-29.23N 097-44.56W unlit2024-06-18
Safe water buoy relocated to 22-16.65N 097-44.48W2023-05-31
La barra light 20-58.4N 097-18.5W unreliable2021-08-31
Punta piedra light 24-29.2N 097-44.5W unlit2020-04-29
Isla de enmedio light 19-06.1N 095-56.3W unreliable2020-01-30

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

La barra light 20-58.4N 097-18.5W unreliableNav aids · 34.3 nm

Worldwide in the collected sources

137 aids-to-navigation notices listed in force · see all

Record snapshot 2026-10-01 06:02Z; source collection times vary.

Nav aids

Lights extinguished, buoys off station, RACON/NAVTEX outages. All current aids-to-navigation notices →

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.