Presque Isle Harbor Breakwater Light — light characteristic, height, range

One red flash every 4 seconds

Count 4 seconds.Flash red, once.Begin again.

Characteristic: Fl R 4s
Height: 56 ft · 17 m
Nominal range: 11 mi = 18 km
Structure: White cylindrical tower with red band on octagonal building.
Remarks: HORN: 2 blasts ev 30s (2s bl-2s si-2s bl-24s si). Fog Signal operates by keying the microphone five times on VHF-FM Channel 83A.
Position: 46.5745°N, 87.3745°W · MI

Presque Isle Harbor Breakwater Light in the middle, with the lights within 20 km, in their listed colours.

Lights nearby

Presque Isle Harbor Lighted Buoy 1One green flash every 4 seconds · 975 m
Wisconsin Electric Power Company Lighted Buoy 3Continuous quick green flashes · 1.0 km
Presque Isle Marina Light 2One red flash every 4 seconds · 1.1 km
Presque Isle Marina Light 1Steady green light · 1.1 km
Presque Isle Weather Wave Buoy 1One yellow flash every 2.5 seconds · 2.6 km
Marquette LightOne white flash every 10 seconds · 3.1 km
Marquette Marina Entrance Light 1One green flash every 2.5 seconds · 3.6 km
Marquette Marina Entrance Light 2One red flash every 2.5 seconds · 3.6 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).