Nav aids

GPS jamming exercises 211030Z to 211130Z aug in area bound by 68-30N 013-00E, 70-30N 013-00E, 70-30N…

Norwegian Sea · HYDROARC 178/19

What this record establishes

Archived notice · 2019-08-21 12:30Z

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 83/19 201830Z AUG 19.. Issued 2019-08-20 17:11Z. 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 · 1 in this warning

opens (UTC)	closes (UTC)	local	length
2019-08-21 10:30Z	2019-08-21 11:30Z	—	1 h

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

issued: 2019-08-20 17:11Z
status: Archived notice
self-cancels: 2019-08-21 12:30Z
authority: NAVAREA XIX 83/19 201830Z AUG 19.
NAVAREA: NAVAREA XIX · named as the source of this relay
sea: Norwegian Sea
position: 69.500, 16.000
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 211030Z TO 211130Z AUG
   IN AREA BOUND BY
   68-30N 013-00E, 70-30N 013-00E,
   70-30N 019-00E, 68-30N 019-00E.
2. CANCEL THIS MSG 211230Z AUG 19.

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

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

Record snapshot 2026-10-03 20:01Z; 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.