1955 Fog Signals Map

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Lighthouses With Fog Signals for Pacific (1955)

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	3	- Bell
	41	- Diaphone
	25	- Horn
	3	- Siren
	1	- Whistle

Lighthouses with Audible Fog Signals

Cape Decision	AK	HORN, diaphragm; when operating, is synchronized with radiobeacon ev 3 minutes for distance finding.	N56 00.084	W134 08.214
Cape Hinchinbrook	AK	DIAPHONE, two-tone; 1 blast ev 45^s (5^sbl).	N60 14.250	W146 38.800
Cape Sarichef	AK	DIAPHONE: two-tone, gp of 2 blasts ev 60^s (3^sbl-5^ssi-3^sbl-49^ssi).	N54 35.950	W164 55.817
Cape Spencer	AK	DIAPHONE: two-tone; 1 blast ev 30^s (4^sbl).	N58 11.904	W136 38.400
Cape St. Elias	AK	SIREN: gp of 2 blasts ev 60^s (4^sbl-4^ssi-4^sbl-48^ssi).	N59 47.904	W144 35.934
Eldred Rock	AK	DIAPHONE, two-tone; when operating, is synchronized with radiobeacon ev 3 minutes for distance finding.	N58 58.302	W135 13.260
Five Finger Islands	AK	DIAPHONE: 1 blast ev 30^s (5^sbl).	N57 16.170	W133 37.866
Guard Island	AK	DIAPHONE: when operating, is synchronized with radiobeacon ev 3 minutes for distance finding.	N55 26.760	W131 52.872
Lincoln Rock	AK	DIAPHONE: 1 blast ev 30^s (3^sbl).	N56 03.500	W132 41.382
Mary Island	AK	DIAPHONE: when operating, is synchronized with radiobeacon ev 3 minutes for distance finding.	N55 05.910	W131 11.016
Point Retreat	AK	DIAPHONE: gp of 2 blasts ev 30^s (3^sbl-3^ssi-3^sbl-21^ssi).	N58 24.660	W134 57.294
Scotch Cap	AK	DIAPHONE: when operating, is synchronized with radiobeacon ev 3 minutes for distance finding.	N54 23.708	W164 44.682
Sentinel Island	AK	DIAPHONE: When operating, is synchronized with radiobeacon ev 3 minutes for distance finding.	N58 32.784	W134 55.386
Tree Point	AK	DIAPHONE, two-tone; when operating, is synchronized with radiobeacon ev 3 minutes for distance finding.	N54 48.126	W130 56.034
Alcatraz Island	CA	HORN, diaphragm; gp of 2 blasts ev 30^s (2^sbl-2^ssi-2^sbl-24^ssi). Located 175 yards, 1431/2° from light.	N37 49.572	W122 25.332
Anacapa Island	CA	DIAPHONE, two-tone; when operating, is synchronized with radiobeacon ev 3 minutes for distance finding.	N34 00.954	W119 21.570
Angel Island	CA	BELL: gp of 2 strokes ev 15^s.	N37 51.372	W122 26.554
Ballast Point	CA	DIAPHONE: 1 blast ev 15^s (1.5^sbl).	N32 41.175	W117 14.000
Carquinez Strait	CA	HORN, diaphragm; 1 blast ev 10^s (2^sbl).	N38 04.185	W122 14.690
East Brother Island	CA	DIAPHONE, two-tone; 1 blast ev 20^s (3^sbl).	N37 57.792	W122 26.016
Farallon Island	CA	DIAPHONE, two-tone; 1 blast and gp of 2 blasts "12" ev 60^s (2^sbl-4^ssi-2^sbl-1^ssi-2^sbl-49^ssi). Fog signal located 360 yards 180° from light tower.	N37 41.946	W123 00.108
Lime Point	CA	HORN, diaphragm, chime; gp of 2 blasts ev 30^s (2^sbl-2^ssi-4^sbl-22^ssi).	N37 49.530	W122 28.716
Long Beach	CA	HORN, diaphragm; 1 blast ev 20^s (3^sbl).	N33 43.392	W118 11.208
Los Angeles Harbor	CA	DIAPHONE, two-tone; when operating, is synchronized with radiobeacon ev 3 minutes for distance finding.	N33 42.516	W118 15.090
Mile Rocks	CA	DIAPHONE: 1 blast ev 30^s (3^sbl).	N37 47.562	W122 30.612
Oakland Harbor	CA	DIAPHONE: 1 blast ev 15^s (2^sbl).	N37 48.013	W122 19.807
Piedras Blancas	CA	DIAPHONE, two-tone; 1 blast ev 30^s (3^sbl).	N35 39.942	W121 17.064
Pigeon Point	CA	DIAPHONE, two-tone; when operating, is synchronized with radiobeacon ev 3 minutes for distance finding.	N37 10.908	W122 23.640
Point Arena	CA	DIAPHONE two-tone; when operating, is synchronized with radiobeacon ev 3 minutes for distance finding.	N38 57.276	W123 44.436
Point Arguello	CA	DIAPHONE, two-tone; when operating, is synchronized with radiobeacon ev 3 minutes for distance finding.	N34 34.626	W120 38.838
Point Blunt	CA	HORN, diaphragm; 1 blast ev 15^s (2^sbl).	N37 51.192	W122 25.146
Point Bonita	CA	DIAPHONE, 2-tone; gp of 2 unequal blasts ev 30^s (1^sbl-2^ssi-2^sbl-25^ssi).	N37 48.936	W122 31.776
Point Cabrillo	CA	DIAPHONE: gp of 2 blasts ev 30^s (2^sbl-2^ssi-2^sbl-24^ssi).	N39 20.922	W123 49.572
Point Conception	CA	DIAPHONE, two-tone; gp 2 blasts ev 60^s (3^sbl-4^ssi-3^sbl-50^ssi).	N34 26.922	W120 28.242
Point Diablo	CA	SIREN: gp of 2 blasts ev 30^s (4^sbl-2^ssi-4^sbl-20^ssi).	N37 49.207	W122 29.970
Point Hueneme	CA	DIAPHONE: 1 blast ev 45^s (4^sbl).	N34 08.712	W119 12.600
Point Loma (New)	CA	DIAPHONE, two-tone; when operating, is synchronized with radiobeacon ev 3 minutes for distance finding.	N32 39.900	W117 14.562
Point Montara	CA	DIAPHONE, two-tone; gp of 2 unequal blasts ev 30^s (3^sbl-1^ssi-1^sbl-25^ssi).	N37 32.190	W122 31.158
Point Pi�os	CA	HORN, diaphragm; gp of 2 blasts ev 30^s (2^sbl-2^ssi-2^sbl-24^ssi). Located 450 yards 336° from light tower.	N36 38.004	W121 56.022
Point Reyes	CA	DIAPHONE, two-tone; 1 blast ev 45^s (5^sbl).	N37 59.730	W123 01.398
Point Stuart	CA	HORN, diaphragm; gp of 2 blasts ev 30^s (2^sbl-2^ssi-2^sbl-24^ssi).	N37 51.658	W122 26.737
Point Sur	CA	DIAPHONE: when operating, is synchronized with radiobeacon ev 3 minutes for distance finding.	N36 18.378	W121 54.090
Point Vicente	CA	WHISTLE: gp of 2 blasts ev 60^s (1^sbl-2^ssi-4^sbl-53^ssi).	N33 44.514	W118 24.648
San Luis Obispo	CA	DIAPHONE, two-tone; when operating, is synchronized with radiobeacon ev 3 minutes for distance finding.	N35 09.624	W120 45.666
Southampton Shoals	CA	DIAPHONE: gp of 2 blasts ev 30^s (2^sbl-6^ssi-2^sbl-20^ssi).	N37 52.900	W122 24.000
St. George Reef	CA	DIAPHONE, two-tone; gp of 2 blasts ev 45^s (2^sbl-3^ssi-2^sbl-38^ssi).	N41 50.220	W124 22.518
Trinidad Head	CA	HORN, diaphragm; 1 blast ev 15^s (1.5^sbl).	N41 03.125	W124 09.090
Yerba Buena Island	CA	DIAPHONE: 1 blast ev 20^s (3^sbl).	N37 48.438	W122 21.738
Cape Arago	OR	HORN, diaphragm, chime; when operating, is synchronized with radiobeacon ev 3 minutes for distance finding.	N43 20.472	W124 22.524
Desdemona Sands	OR	BELL: 2 strokes ev 30^s.	N46 13.542	W123 57.306
Tillamook	OR	SIREN: 1 blast ev 45^s (5^sbl).	N45 56.232	W124 01.146
Warrior Rock	OR	BELL: 1 stroke ev 15^s.	N45 50.916	W122 47.304
Alki Point	WA	HORN, diaphragm; gp of 2 blasts ev 30^s (3^sbl-6^ssi-3^sbl-18^ssi).	N47 34.578	W122 25.236
Browns Point	WA	HORN, diaphragm; gp of 3 blasts ev 30^s (3^sbl-2^ssi-3^sbl-2^ssi-3^sbl-17^ssi).	N47 18.354	W122 26.658
Burrows Island	WA	HORN, diaphragm; gp of 2 blasts ev 40^s (4^sbl-7^ssi-4^sbl-25^ssi).	N48 28.680	W122 42.810
Bush Point	WA	HORN, diaphragm; 1 blast ev 30^s (5^sbl).	N48 01.854	W122 36.426
Cape Flattery	WA	DIAPHONE: when operating, is synchronized with radiobeacon ev 3 minutes for distance finding.	N48 23.496	W124 44.196
Destruction Island	WA	DIAPHONE: when operating, is synchronized with radiobeacon ev 3 minutes for distance finding.	N47 40.470	W124 29.220
Dofflemyer Point	WA	HORN, diaphragm; 1 blast ev 15^s (5^sbl).	N47 08.436	W122 54.450
Ediz Hook	WA	HORNS, diaphragm (2); when operating, are synchronized with radiobeacon ev 3 minutes for distance finding. Fog signal is located 600 yards 093° from light tower.	N48 08.406	W123 24.714
Grays Harbor	WA	DIAPHONE: when operating, is synchronized with radiobeacon ev 3 minutes for distance finding. Fog signal is located 2,240 yards 353° 45' from light tower.	N46 53.292	W124 07.014
Lime Kiln	WA	HORNS, diaphragm; gp of 2 blasts ev 20^s (2^sbl-4^ssi-2^sbl-12^ssi).	N48 30.948	W123 09.156
Marrowstone Point	WA	HORNS, diaphragm (2); gps of 3 blasts ev 30^s (2^sbl-2^ssi-2^sbl-2^ssi-2^sbl-20^ssi).	N48 06.096	W122 41.268
Mukilteo	WA	HORN, reed; 1 blast ev 20^s (4^sbl).	N47 56.922	W122 18.378
New Dungeness	WA	DIAPHONE: when operating, is synchronized with radiobeacon ev 3 minutes for distance finding.	N48 10.902	W123 06.612
Patos Island	WA	DIAPHONE: when operating, is synchronized with radiobeacon ev 3 minutes for distance finding.	N48 47.340	W122 58.266
Point No Point	WA	HORN, diaphragm; gps of 2 blasts ev 30^s (3^sbl-3^ssi-3^sbl-21^ssi).	N47 54.733	W122 31.608
Point Robinson	WA	HORN, diaphragm; 1 blast ev 20^s (4^sbl).	N47 23.286	W122 22.464
Point Wilson	WA	HORN, chime diaphragm; when operating, is synchronized with radiobeacon ev 3 minutes for distance finding.	N48 08.652	W122 45.282
Semiahmoo Harbor	WA	HORN, diaphragm; 1 blast ev 20^s (3^sbl).	N48 59.556	W122 46.932
Slip Point	WA	DIAPHONE: 1 blast ev 30^s (3^sbl).	N48 15.870	W124 15.060
Turn Point	WA	HORN, diaphragm; gp of 2 unequal blasts ev 30^s (4^sbl-4^ssi-2^sbl-20^ssi).	N48 41.322	W123 14.232
West Point	WA	HORN, diaphragm; when operating, is synchronized with radiobeacon ev 3 minutes for distance finding.	N47 39.720	W122 26.142

Cape Decision

HORN, diaphragm; when operating, is synchronized with radiobeacon ev 3 minutes for distance finding.

N56 00.084

W134 08.214

Cape Hinchinbrook

DIAPHONE, two-tone; 1 blast ev 45^s (5^sbl).

N60 14.250

W146 38.800

Cape Sarichef

DIAPHONE: two-tone, gp of 2 blasts ev 60^s (3^sbl-5^ssi-3^sbl-49^ssi).

N54 35.950

W164 55.817

Cape Spencer

DIAPHONE: two-tone; 1 blast ev 30^s (4^sbl).

N58 11.904

W136 38.400

Cape St. Elias

SIREN: gp of 2 blasts ev 60^s (4^sbl-4^ssi-4^sbl-48^ssi).

N59 47.904

W144 35.934

Eldred Rock

DIAPHONE, two-tone; when operating, is synchronized with radiobeacon ev 3 minutes for distance finding.

N58 58.302

W135 13.260

Five Finger Islands

DIAPHONE: 1 blast ev 30^s (5^sbl).

N57 16.170

W133 37.866

Guard Island

DIAPHONE: when operating, is synchronized with radiobeacon ev 3 minutes for distance finding.

N55 26.760

W131 52.872

Lincoln Rock

DIAPHONE: 1 blast ev 30^s (3^sbl).

N56 03.500

W132 41.382

Mary Island

DIAPHONE: when operating, is synchronized with radiobeacon ev 3 minutes for distance finding.

N55 05.910

W131 11.016

Point Retreat

DIAPHONE: gp of 2 blasts ev 30^s (3^sbl-3^ssi-3^sbl-21^ssi).

N58 24.660

W134 57.294

Scotch Cap

DIAPHONE: when operating, is synchronized with radiobeacon ev 3 minutes for distance finding.

N54 23.708

W164 44.682

Sentinel Island

DIAPHONE: When operating, is synchronized with radiobeacon ev 3 minutes for distance finding.

N58 32.784

W134 55.386

Tree Point

DIAPHONE, two-tone; when operating, is synchronized with radiobeacon ev 3 minutes for distance finding.

N54 48.126

W130 56.034

Alcatraz Island

HORN, diaphragm; gp of 2 blasts ev 30^s (2^sbl-2^ssi-2^sbl-24^ssi). Located 175 yards, 1431/2° from light.

N37 49.572

W122 25.332

Anacapa Island

DIAPHONE, two-tone; when operating, is synchronized with radiobeacon ev 3 minutes for distance finding.

N34 00.954

W119 21.570

Angel Island

BELL: gp of 2 strokes ev 15^s.

N37 51.372

W122 26.554

Ballast Point

DIAPHONE: 1 blast ev 15^s (1.5^sbl).

N32 41.175

W117 14.000

Carquinez Strait

HORN, diaphragm; 1 blast ev 10^s (2^sbl).

N38 04.185

W122 14.690

East Brother Island

DIAPHONE, two-tone; 1 blast ev 20^s (3^sbl).

N37 57.792

W122 26.016

Farallon Island

DIAPHONE, two-tone; 1 blast and gp of 2 blasts "12" ev 60^s (2^sbl-4^ssi-2^sbl-1^ssi-2^sbl-49^ssi). Fog signal located 360 yards 180° from light tower.

N37 41.946

W123 00.108

Lime Point

HORN, diaphragm, chime; gp of 2 blasts ev 30^s (2^sbl-2^ssi-4^sbl-22^ssi).

N37 49.530

W122 28.716

Long Beach

HORN, diaphragm; 1 blast ev 20^s (3^sbl).

N33 43.392

W118 11.208

Los Angeles Harbor

DIAPHONE, two-tone; when operating, is synchronized with radiobeacon ev 3 minutes for distance finding.

N33 42.516

W118 15.090

Mile Rocks

DIAPHONE: 1 blast ev 30^s (3^sbl).

N37 47.562

W122 30.612

Oakland Harbor

DIAPHONE: 1 blast ev 15^s (2^sbl).

N37 48.013

W122 19.807

Piedras Blancas

DIAPHONE, two-tone; 1 blast ev 30^s (3^sbl).

N35 39.942

W121 17.064

Pigeon Point

DIAPHONE, two-tone; when operating, is synchronized with radiobeacon ev 3 minutes for distance finding.

N37 10.908

W122 23.640

Point Arena

DIAPHONE two-tone; when operating, is synchronized with radiobeacon ev 3 minutes for distance finding.

N38 57.276

W123 44.436

Point Arguello

DIAPHONE, two-tone; when operating, is synchronized with radiobeacon ev 3 minutes for distance finding.

N34 34.626

W120 38.838

Point Blunt

HORN, diaphragm; 1 blast ev 15^s (2^sbl).

N37 51.192

W122 25.146

Point Bonita

DIAPHONE, 2-tone; gp of 2 unequal blasts ev 30^s (1^sbl-2^ssi-2^sbl-25^ssi).

N37 48.936

W122 31.776

Point Cabrillo

DIAPHONE: gp of 2 blasts ev 30^s (2^sbl-2^ssi-2^sbl-24^ssi).

N39 20.922

W123 49.572

Point Conception

DIAPHONE, two-tone; gp 2 blasts ev 60^s (3^sbl-4^ssi-3^sbl-50^ssi).

N34 26.922

W120 28.242

Point Diablo

SIREN: gp of 2 blasts ev 30^s (4^sbl-2^ssi-4^sbl-20^ssi).

N37 49.207

W122 29.970

Point Hueneme

DIAPHONE: 1 blast ev 45^s (4^sbl).

N34 08.712

W119 12.600

Point Loma (New)

DIAPHONE, two-tone; when operating, is synchronized with radiobeacon ev 3 minutes for distance finding.

N32 39.900

W117 14.562

Point Montara

DIAPHONE, two-tone; gp of 2 unequal blasts ev 30^s (3^sbl-1^ssi-1^sbl-25^ssi).

N37 32.190

W122 31.158

Point Pi�os

HORN, diaphragm; gp of 2 blasts ev 30^s (2^sbl-2^ssi-2^sbl-24^ssi). Located 450 yards 336° from light tower.

N36 38.004

W121 56.022

Point Reyes

DIAPHONE, two-tone; 1 blast ev 45^s (5^sbl).

N37 59.730

W123 01.398

Point Stuart

HORN, diaphragm; gp of 2 blasts ev 30^s (2^sbl-2^ssi-2^sbl-24^ssi).

N37 51.658

W122 26.737

Point Sur

DIAPHONE: when operating, is synchronized with radiobeacon ev 3 minutes for distance finding.

N36 18.378

W121 54.090

Point Vicente

WHISTLE: gp of 2 blasts ev 60^s (1^sbl-2^ssi-4^sbl-53^ssi).

N33 44.514

W118 24.648

San Luis Obispo

DIAPHONE, two-tone; when operating, is synchronized with radiobeacon ev 3 minutes for distance finding.

N35 09.624

W120 45.666

Southampton Shoals

DIAPHONE: gp of 2 blasts ev 30^s (2^sbl-6^ssi-2^sbl-20^ssi).

N37 52.900

W122 24.000

St. George Reef

DIAPHONE, two-tone; gp of 2 blasts ev 45^s (2^sbl-3^ssi-2^sbl-38^ssi).

N41 50.220

W124 22.518

Trinidad Head

HORN, diaphragm; 1 blast ev 15^s (1.5^sbl).

N41 03.125

W124 09.090

Yerba Buena Island

DIAPHONE: 1 blast ev 20^s (3^sbl).

N37 48.438

W122 21.738

Cape Arago

HORN, diaphragm, chime; when operating, is synchronized with radiobeacon ev 3 minutes for distance finding.

N43 20.472

W124 22.524

Desdemona Sands

BELL: 2 strokes ev 30^s.

N46 13.542

W123 57.306

Tillamook

SIREN: 1 blast ev 45^s (5^sbl).

N45 56.232

W124 01.146

Warrior Rock

BELL: 1 stroke ev 15^s.

N45 50.916

W122 47.304

Alki Point

HORN, diaphragm; gp of 2 blasts ev 30^s (3^sbl-6^ssi-3^sbl-18^ssi).

N47 34.578

W122 25.236

Browns Point

HORN, diaphragm; gp of 3 blasts ev 30^s (3^sbl-2^ssi-3^sbl-2^ssi-3^sbl-17^ssi).

N47 18.354

W122 26.658

Burrows Island

HORN, diaphragm; gp of 2 blasts ev 40^s (4^sbl-7^ssi-4^sbl-25^ssi).

N48 28.680

W122 42.810

Bush Point

HORN, diaphragm; 1 blast ev 30^s (5^sbl).

N48 01.854

W122 36.426

Cape Flattery

DIAPHONE: when operating, is synchronized with radiobeacon ev 3 minutes for distance finding.

N48 23.496

W124 44.196

Destruction Island

DIAPHONE: when operating, is synchronized with radiobeacon ev 3 minutes for distance finding.

N47 40.470

W124 29.220

Dofflemyer Point

HORN, diaphragm; 1 blast ev 15^s (5^sbl).

N47 08.436

W122 54.450

Ediz Hook

HORNS, diaphragm (2); when operating, are synchronized with radiobeacon ev 3 minutes for distance finding. Fog signal is located 600 yards 093° from light tower.

N48 08.406

W123 24.714

Grays Harbor

DIAPHONE: when operating, is synchronized with radiobeacon ev 3 minutes for distance finding. Fog signal is located 2,240 yards 353° 45' from light tower.

N46 53.292

W124 07.014

Lime Kiln

HORNS, diaphragm; gp of 2 blasts ev 20^s (2^sbl-4^ssi-2^sbl-12^ssi).

N48 30.948

W123 09.156

Marrowstone Point

HORNS, diaphragm (2); gps of 3 blasts ev 30^s (2^sbl-2^ssi-2^sbl-2^ssi-2^sbl-20^ssi).

N48 06.096

W122 41.268

Mukilteo

HORN, reed; 1 blast ev 20^s (4^sbl).