Nav aids

GPS jamming exercises: a. 261025Z to 261200Z and 271030Z to 271200Z jun in area bound by 69-27N 015-30E,…

Norwegian Sea · HYDROARC 92/20

What this record establishes

Archived notice · 2020-06-28 13:00Z

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 XIX 61/20 241845Z JUN 20.. Issued 2020-06-24 20:43Z. 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: Norwegian Sea. The map shows an area described by the warning; the listed coordinate is its representative center. Check the original wording for limits and qualifications.

Current notices and reporting history in the Norwegian Sea →

Activity windows · 3 in this warning

opens (UTC)	closes (UTC)	local	length
2020-06-26 10:25Z	2020-06-26 12:00Z	—	1 h 35
2020-06-27 10:30Z	2020-06-27 12:00Z	—	1 h 30
2020-06-28 10:35Z	2020-06-28 12:00Z	—	1 h 25

Parsed from the warning text; outside these windows the area is normally not active, but the warning stays in force until cancelled.

issued: 2020-06-24 20:43Z
status: Archived notice
self-cancels: 2020-06-28 13:00Z
authority: NAVAREA XIX 61/20 241845Z JUN 20.
NAVAREA: NAVAREA XIX · named as the source of this relay
sea: Norwegian Sea
position: 69.396, 15.958
source: NGA MSI broadcast-warn JSON (archive, frozen 2024-05) · first seen 2026-08-17 13:38Z

Original warning text

NORWEGIAN SEA.
NORWAY.
DNC 22.
1. GPS JAMMING EXERCISES:
   A. 261025Z TO 261200Z AND 271030Z TO 271200Z JUN
      IN AREA BOUND BY
      69-27N 015-30E, 69-27N 016-15E,
      69-18N 016-15E, 69-09N 015-30E.
   B. 281035Z TO 281200Z JUN
      IN AREA BOUND BY
      69-36N 015-30E, 69-36N 016-30E,
      69-18N 016-30E, 69-06N 015-30E.
2. CANCEL THIS MSG 281300Z JUN 20.

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.
GNSS / GPS: Satellite positioning — GPS and other systems — and the testing, jamming and interference that make it unreliable in an area.
Date-time group (DTG): A compact UTC timestamp — day, hour and minute followed by Z — such as 201500Z for the 20th at 15:00 UTC.
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.
CANCEL THIS MSG: The warning's own expiry: a line telling the reader when the message cancels itself.

All warning terms →

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

5 within 180 nm since 2019 · 2 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.

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

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

Record snapshot 2026-09-28 10:40Z; 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.