Gulf of Alaska

IHO sea area 58 · -163° to -137° E, 54° to 62° N

in force
2
last 12 months
14
archive messages
666
categories
10

What the archive shows

666 messages are recorded since 1985-02-25 for the Gulf of Alaska. The selection uses the IHO sea area; a message may describe an exercise, equipment outage or continuing operation as well as a hazard report.

Nav aids accounts for 323 of 666 recorded messages (48%), the largest category group in this selection.

The NGA historical archive froze in 2024-05; live collection began 2026-08-17. Counts around that gap are incomplete, and changes in reporting volume do not establish changes in incident frequency.

In force now · 2

  1. NOAAORR-11227 · Spills2026-09-28
    The 91-foot fishing vessel Rolfy sank at I-Dock in Seward Harbor, Alaska, on September 28, 2026, posing an oil threat as salvage crews prepare to refloat it.
  2. NAVAREA XII 718/25 · Nav aids2025-11-13
    Weather fax services are off air at Kodiak, Alaska; NAVAREA XII 460/24 is canceled.

Longest in force

  1. NAVAREA XII 718/25 · Nav aids2025-11-13
    Weather fax services are off air at Kodiak, Alaska; NAVAREA XII 460/24 is canceled.
  2. NOAAORR-11227 · Spills2026-09-28
    The 91-foot fishing vessel Rolfy sank at I-Dock in Seward Harbor, Alaska, on September 28, 2026, posing an oil threat as salvage crews prepare to refloat it.

By year

85
86
87
88
89
90
91
92
93
94
95
97
98
99
00
01
02
03
04
05
06
07
08
09
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26

By month (all years)

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

By category · available archive

Nav aids32348%
Spills19129%
Quakes8613%
Other335%
Exercises173%
Cable ops61%
Incidents41%
Debris30%
Derelicts20%
Missiles10%

Archive · 664 cancelled

  1. NAVAREA XII 234/11 · Nav aids2011-06-17 → 2011-06-18
    Nos chart 16011 (37TH ed)
  2. NAVAREA XII 229/11 · Exercises2011-06-13 → 2011-06-17
    Gunnery exercises 170300Z to 170500Z jun within 18 miles of: a. 57-30N 146-00W
  3. NAVAREA XII 228/11 · Exercises2011-06-13 → 2011-06-16
    Gunnery exercises 160300Z to 160500Z jun within 18 miles of: a. 57-30N 146-00W
  4. NAVAREA XII 204/11 · Nav aids2011-05-27 → 2011-05-27
    Nos chart 16011 (37TH ed)
  5. USGS-USP000J11V · Quakes2011-05-05 → 2011-05-08
    37 km ssw of sand point, alaska
  6. USGS-USP000J11B · Quakes2011-05-05 → 2011-05-08
    27 km s of sand point, alaska
  7. NAVAREA XII 170/11 · Nav aids2011-04-27 → 2011-04-28
    Nos chart 16011 (37TH ed)
  8. NAVAREA XII 158/11 · Nav aids2011-04-17 → 2011-04-17
    Nos chart 16011 (37TH ed)
  9. NAVAREA XII 151/11 · Exercises2011-04-13 → 2011-04-16
    Gunnery exercises 142000Z to 150001Z and 152000Z to 160001Z apr within 10000 yards of 59-58N 146-10W
  10. NAVAREA XII 135/11 · Nav aids2011-04-06 → 2011-04-07
    Nos chart 16580 (14TH ed)
  11. NAVAREA XII 125/11 · Nav aids2011-04-05 → 2011-04-06
    Nos chart 16580 (14TH ed)
  12. NAVAREA XII 122/11 · Nav aids2011-04-04 → 2011-04-04
    Nos chart 16580 (14TH ed)
  13. NAVAREA XII 121/11 · Nav aids2011-04-03 → 2011-04-06
    Nos chart 16011 (37TH ed)
  14. NAVAREA XII 107/11 · Nav aids2011-03-20 → 2011-04-02
    Nos chart 16011 (37TH ed)
  15. NAVAREA XII 101/11 · Nav aids2011-03-18 → 2011-03-19
    Nos chart 16011 (37TH ed)
  16. NOAAORR-8295 · Spills2011-03-06 → 2011-03-20
    King cove, alaska peninsula
  17. NAVAREA XII 81/11 · Nav aids2011-03-05 → 2011-03-05
    Nos chart 16580 (14TH ed)
  18. NAVAREA XII 80/11 · Nav aids2011-03-04 → 2011-03-05
    Nos chart 16011 (37TH ed)
  19. NOAAORR-8291 · Spills2011-02-11 → 2011-02-25
    Afognak island, alaska
  20. USGS-USP000HTZ3 · Quakes2011-02-02 → 2011-02-05
    40 km s of sand point, alaska

Sea boundaries: Flanders Marine Institute (2018), IHO Sea Areas v3, marineregions.org (CC BY 4.0). Not for navigation — follow official NAVAREA / coastal broadcasts.