Spills · collision
Willamette river, or
Mystery Sheen; Willamette River, Or · NOAAORR-8441
- issued
- 2012-05-09 00:00Z
- status
- cancelled 2012-05-23 00:00Z
- self-cancels
- 2012-05-23 00:00Z
- authority
- NOAA OR&R
- sea
- North Pacific Ocean
- position
- 45.357, -122.612
- source
- incidentnews · first seen 2026-09-03 15:09Z
Original warning text
Mystery Sheen; Willamette River, OR. Willamette River, OR. 1. SSC was notified by USCG Sector Columbia River of a mystery sheen in the Willamette River, extending from Oregon City Falls north to Milwaukie in Oregon (just south of Portland). There is not a known source, amount, or type of oil. Sheen is being reported as "grey and weathered". Sector Columbia River is looking for a trajectory of where the oil may go and guidance on what should be protected. 2. THREAT: OIL. TAGS: COLLISION. 3. POSITION 45.357N 122.612W. NOAA INCIDENTNEWS 8441: https://incidentnews.noaa.gov/incident/8441
This area · spills & pollution incidents
354 within 180 nm since 1984 · 13 in the last 12 months · 0 in force now
84
85
90
95
00
05
10
15
20
25
26
- Joseph sinking; seattle, washington2026-08-06
- 3414 a california st, everett, wa 98201, USA2026-07-18
- Olalla, wa 98359, USA2026-06-15
- Mystery bunker oil discharge; pier 2, astoria, oregon2026-05-29
- Longview, wa, USA2026-05-26
- 3-Engine train derailment; toledo, oregon2026-01-22
Season · when spills & pollution incidents happen here
J
F
M
A
M
J
J
A
S
O
N
D
month of issue, all years in the archive
Nearby now · within 120 nm
Worldwide now
8 spills & pollution incidents in force · see all
Spills
Oil and chemical spills, groundings and vessel casualties with a pollution threat: NOAA IncidentNews responses since 1957, and spill-response areas broadcast as navigational warnings. All current spills & pollution incidents →
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.