Other

Underwater ordnance detonations: a. 180001Z to 181100Z jul within 18 miles of: 1. 39-12N 135-50E

HYDROPAC 1027/00

issued
2000-07-13 08:50Z
status
cancelled 2000-07-20 12:00Z (archive)
self-cancels
2000-07-20 12:00Z
cancels
HYDROPAC 1020/00
authority
NRL WASHINGTON D.C. 292008Z JUN 00; AUSCOAST 130739Z JUL 00
sea
Japan Sea
position
40.700, 134.567
source
nga_json · first seen 2026-08-17 13:38Z

Original warning text

1. UNDERWATER ORDNANCE DETONATIONS:
   A. 180001Z TO 181100Z JUL WITHIN 18 MILES OF:
      1. 39-12N 135-50E.
      2. 39-00N 135-00E.
   B. 200001Z TO 201100Z JUL VICINITY:
      1. 42-30N 135-30E.
      2. 41-48N 134-00E.
      3. 41-00N 132-30E.
2. CANCEL HYDROPAC 1020/00(74), AID RESTORED.
3. CANCEL THIS MSG 201200Z JUL.

Activity windows · 2 in this warning

opens (UTC)closes (UTC)locallength
2000-07-18 00:01Z2000-07-18 11:00Z10 h 59
2000-07-20 00:01Z2000-07-20 11:00Z10 h 59

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

This area · other warnings

23 within 180 nm since 1999 · 0 in the last 12 months · 0 in force now

99
00
05
10
15
20
24

Season · when other warnings happen here

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

month of issue, all years in the archive

Timeline

Nearby now · within 120 nm

Nothing else in force within 120 nm.

Worldwide now

34 other warnings in force · see all

Other

Everything the classifier did not place elsewhere. All current other warnings

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.