Surveys

The World Magnetic Model 2025 update will be released on December 17, 2024, and the current 2020 model expires December 31, 2024.

NAVAREA XII 826/24

issued: 2024-10-15 23:53Z
status: cancelled 2026-08-17 00:00Z (dropped from snapshot)
self-cancels: 2025-01-01 00:01Z
source: nga_wayback · first seen 2024-11-12 15:40Z

Original warning text

WORLD MAGENETIC MODEL (WMM) 2025 UPDATE
1. AS PART OF THE REGULAR UPDATE CYCLE OF THE
   WORLD MAGNETIC MODEL (WMM),
   THE NATIONAL OCEANOGRAPHIC & ATMOSPHERIC
   ADMINISTRATION (NOAA)/ NATIONAL CENTERS
   FOR ENVIRONMENTAL INFORMATION (NCEI),
   IN COLLABORATION WITH THE BRITISH
   GEOLOGICAL SURVEY (BGS), WILL RELEASE THE
   WMM2025 ON DECEMBER 17, 2024.
   THE CURRENT 2020 WMM WILL EXPIRE ON
   DECEMBER 31, 2024.
2. IN ORDER TO AVOID ANY MODEL PERFORMANCE
   DEGRADATION, USERS ARE RECOMMENDED TO
   DOWNLOAD AND INSTALL THE WMM2025
   MODEL COEFFICIENTS, WHICH WILL
   BE PUBLISHED ONLINE AT
   HTTPS://WWW.NCEI.NOAA.GOV/PRODUCTS/
   WORLD-MAGNETIC-MODEL.
3. THE WMM IS THE STANDARD MODEL USED
   BY THE U.S. DEPARTMENT OF DEFENSE (DOD),
   CIVIL AGENCIES, THE NORTH ATLANTIC TREATY
   ORGANIZATION (NATO), AND THE INTERNATIONAL
   HYDROGRAPHIC ORGANIZATION, FOR A
   WIDE-RANGE OF POSITIONING AND NAVIGATION
   SYSEM APPLICATIONS THAT USE THE GEOMAGNETIC
   FIELD, INCLUDING ALL AIRCRAFT, SHIPS,
   SUBMARINES, AND GPS UNITS.
4. CANCEL THIS MSG 010001Z JAN 25.

Nearby now · within 120 nm

Nothing else in force within 120 nm.

Worldwide now

70 survey operations in force · see all

Surveys

Hydrographic and scientific survey vessels, often towing long arrays. All current survey operations →

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.