The Coastal Waters of Southeast Alaska and British Columbia
IHO sea area 59 · -137° to -122° E, 47° to 59° N
- in force
- 1
- last 12 months
- 14
- archive messages
- 640
- categories
- 9
What the archive shows
640 messages are recorded since 1984-07-27 for the The Coastal Waters of Southeast Alaska and British Columbia. The selection uses the IHO sea area; a message may describe an exercise, equipment outage or continuing operation as well as a hazard report.
Spills accounts for 351 of 640 recorded messages (55%), 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.
- An older warning still listed in force · issued 2026-09-21 00:00ZAn overturned hydrogen tank truck in Bellingham, Washington, on September 21, 2026, poses a chemical threat with no obvious leak, and modeling is requested.
In force now · 1
Longest in force
By year
By month (all years)
By category · available archive
| Spills | 351 | 55% |
| Nav aids | 252 | 39% |
| Other | 23 | 4% |
| Quakes | 5 | 1% |
| Surveys | 4 | 1% |
| Cable ops | 2 | 0% |
| Towing | 1 | 0% |
| Wrecks | 1 | 0% |
| Derelicts | 1 | 0% |
Archive · 639 cancelled
- NAVAREA XII 318/10 · Nav aids2010-07-16 → 2010-07-23Nos chart 17320 (18TH ed)
- NAVAREA XII 310/10 · Nav aids2010-07-07 → 2010-07-08Nos chart 16016 (21ST ed)
- NAVAREA XII 274/10 · Nav aids2010-06-18 → 2010-06-22Nos chart 17320 (18TH ed)
- NAVAREA XII 270/10 · Nav aids2010-06-16 → 2010-06-16Nos chart 17320 (18TH ed)
- NAVAREA XII 258/10 · Nav aids2010-06-10 → 2010-06-11Nos chart 16016 (21ST ed)
- NAVAREA XII 256/10 · Nav aids2010-06-09 → 2010-06-09Nos chart 17320 (17TH ed)
- NAVAREA XII 247/10 · Nav aids2010-06-05 → 2010-06-05Nos chart 17320 (17TH ed)
- NAVAREA XII 226/10 · Nav aids2010-05-19 → 2010-05-22Nos chart 17320 (17TH ed)
- NAVAREA XII 223/10 · Nav aids2010-05-16 → 2010-05-19Nos chart 17320 (18TH ed)
- NAVAREA XII 194/10 · Nav aids2010-04-23 → 2010-04-24Nos chart 16016 (21ST ed)
- NAVAREA XII 191/10 · Nav aids2010-04-22 → 2010-04-23Nos chart 16016 (21ST ed)
- NAVAREA XII 185/10 · Nav aids2010-04-20 → 2010-04-21Nos chart 17320 (18TH ed)
- NAVAREA XII 174/10 · Nav aids2010-04-15 → 2010-04-16Nos chart 17320 (18TH ed)
- NAVAREA XII 173/10 · Nav aids2010-04-15 → 2010-04-16Nos chart 16016 (21ST ed)
- NAVAREA XII 169/10 · Nav aids2010-04-13 → 2010-04-13Nos chart 16016 (21ST ed)
- NAVAREA XII 166/10 · Nav aids2010-04-12 → 2010-04-12Nos chart 17320 (18TH ed)
- NAVAREA XII 138/10 · Nav aids2010-04-02 → 2010-04-03Nos chart 16016 (21ST ed)
- NAVAREA XII 137/10 · Nav aids2010-04-02 → 2010-04-03Nos chart 17320 (18TH ed)
- NAVAREA XII 135/10 · Nav aids2010-04-02 → 2010-04-03Nga chart 16016 (21ST ed)
- NAVAREA XII 112/10 · Nav aids2010-03-14 → 2010-03-15Nos chart 16016 (21ST ed)
Sea boundaries: Flanders Marine Institute (2018), IHO Sea Areas v3, marineregions.org (CC BY 4.0). Not for navigation — follow official NAVAREA / coastal broadcasts.