Spills

Warrior rock, columbia river, near portland, oregon

Mobiloil; Warrior Rock, Columbia River, Near Portland, Oregon · NOAAORR-6265

issued
1984-03-19 00:00Z
status
cancelled 1984-04-02 00:00Z
self-cancels
1984-04-02 00:00Z
authority
NOAA OR&R
sea
North Pacific Ocean
position
45.850, -122.783
source
incidentnews · first seen 2026-09-03 15:09Z

Original warning text

Mobiloil; Warrior Rock, Columbia River, near Portland, Oregon.
Warrior Rock, Columbia River, near Portland, Oregon.
1. The Tank Vessel Mobiloil, while en route from Ferndale, Washington to Portland, Oregon, suffered a steering failure at 0005 on March 19, 1984 which resulted in the grounding of the vessel near Warrior Rock in the Columbia River approximately 10 miles downstream from Portland, Oregon. Punctures and gashes ruptured the number 1-5 starboard cargo tanks releasing 3,925 barrels of heavy residual oil, industrial fuel oil, and No. 6 fuel oil. The vessel remained grounded perpendicular to the current until March 26, when it was refloated and escorted to dry dock in Portland. At the time of the spill the wind was from the south and the river current velocities were 1.5-3.0 knots. The incident occurred in a turbulent area of the river that experiences some tidal influence. USCG district 13. Keyword: Volunteers, sub-surface oil, boom, manual removal, reoiling, International Bird Rescue and [...]
2. COMMODITY: HEAVY RESIDUAL OIL, INDUSTRIAL FUEL OIL, NO. 6 FUEL OIL. MAXIMUM POTENTIAL RELEASE: 165000 GALLONS.
3. POSITION 45.850N 122.783W. NOAA INCIDENTNEWS 6265: https://incidentnews.noaa.gov/incident/6265

This area · spills & pollution incidents

426 within 180 nm since 1984 · 12 in the last 12 months · 0 in force now

84
85
90
95
00
05
10
15
20
25
26

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

7 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.