KOEN
Yerba Buena Island Light in the middle, with the lights within 20 km, in their listed colours.
Yerba Buena Island Light — light characteristic, height, range
White, dark once every 4 seconds
Keep the white light on.Every 4 seconds, go dark once.Begin again.
- Characteristic
- Oc W 4s
- Height
- 95 ft · 29 m
- Nominal range
- 14 nmi = 26 km
- Structure
- White octagonal tower.
- Remarks
- Emergency light of reduced intensity when main light is extinguished. HORN: (MRASS) 1 blast every 30s (3s bl). The sound signal can be activated by keying VHF-FM Ch.83A 5 times within 10 seconds
- Position
- 37.8073°N, 122.3622°W · CA
Lights nearby
- Yerba Buena Island Wharf LightSteady red light · 134 m
- Regulated Area Buoy 2One white flash every 2.5 seconds · 219 m
- Regulated Area Buoy 1One white flash every 4 seconds · 545 m
- Oakland Harbor Bar Channel Lighted Bell Buoy 1One green flash every 2.5 seconds · 640 m
- Oakland Harbor Bar Channel Lighted Buoy 2One red flash every 2.5 seconds · 877 m
- Oakland Harbor Bar Channel Lighted Buoy 2AOne red flash every 2.5 seconds · 1.1 km
- Oakland Inner Harbor Lighted Buoy 4One red flash every 4 seconds · 1.4 km
- Oakland Outer Harbor Lighted Buoy 3One green flash every 4 seconds · 1.6 km
Not for navigation. Use official NOAA charts and USCG Local Notices to Mariners.
Real periods; the phase is reconstructed from a fixed clock (real lights don't keep time with each other).
Sources: U.S. Coast Guard Light List (opens in a new tab) · Checked