Exercises

Hazardous operations 132100Z to 152100Z sep and 152100Z to 172100Z sep in area bound by 77-55.2N 099-35.0E,…

Kara Sea · HYDROARC 183/20

What this record establishes

Archived notice · 2020-09-17 22:00Z

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) · RUSSIA COASTAL WARNING WEST 93/20 090829Z SEP 20.. Issued 2020-09-09 09:22Z. 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
Kara 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 Kara Sea →

Activity windows · 2 in this warning

opens (UTC)closes (UTC)locallength
2020-09-13 21:00Z2020-09-15 21:00Z—48 h
2020-09-15 21:00Z2020-09-17 21:00Z—48 h

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

issued
2020-09-09 09:22Z
status
Archived notice
self-cancels
2020-09-17 22:00Z
authority
RUSSIA COASTAL WARNING WEST 93/20 090829Z SEP 20.
issued by
RUSSIA COASTAL WARNING WEST
sea
Kara Sea
position
77.795, 103.084
source
NGA MSI broadcast-warn JSON (archive, frozen 2024-05) · first seen 2026-08-17 13:38Z

Original warning text

KARA SEA.
RUSSIA.
DNC 22, DNC 27.
1. HAZARDOUS OPERATIONS 132100Z TO 152100Z SEP
   AND 152100Z TO 172100Z SEP
   IN AREA BOUND BY
   77-55.2N 099-35.0E, 78-17.5N 104-50.0E,
   77-33.0N 105-55.0E, 77-20.0N 102-05.0E.
2. CANCEL THIS MSG 172200Z SEP 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.
Hazardous operations
NGA's heading for activities that make an area dangerous — most often rocket launches, space debris and weapons firings, and some open-ended danger areas.
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 · military exercises

5 within 180 nm since 2009 · 0 in the last 12 months · 0 listed in force now

09
10
15
20
22

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

J
F
M
A
M
J
J
A
S
O
N
D

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

Worldwide in the collected sources

28 military exercises listed in force · see all

Record snapshot 2026-10-01 19:09Z; source collection times vary.

Exercises

Gunnery, firing and naval exercise areas. All current military exercises →

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.