Lighthouses and Lightships With Fog Signals for South Atlantic and Gulf Coast (1927)
| 33 | - Bell | |
| 3 | - Diaphone | |
| 2 | - Horn | |
| 4 | - Siren | |
| 7 | - Whistle |
Lighthouses with Audible Fog Signals
| Egmont Key | FL | Air horn: blast 4 sec., silent 26 sec. | N27 36.048 | W082 45.642 |
| Brunswick Lightship | GA | 12-inch steam whistle: Blast 5 sec. Silent 25 sec. | N31 00.200 | W081 09.500 |
| Savannah Lightship | GA | 1st-cl. air siren: Blast 2 sec. Silent 18 sec. | N31 56.600 | W080 39.800 |
| Amite River | LA | Bell; 1 stroke every 30 sec. | N30 17.814 | W090 33.468 |
| Cubits Gap | LA | Bell; 1 stroke every 30 sec. | N29 11.502 | W089 15.834 |
| Lake Borgne | LA | Bell; 1 stroke every 30 sec. | N30 10.483 | W089 27.733 |
| New Canal | LA | Bell; 1 stroke every 30 sec. | N30 01.620 | W090 06.792 |
| Pass Manchac | LA | Bell; 1 stroke every 30 sec. | N30 17.802 | W090 17.892 |
| Point au Fer Reef | LA | Bell; 1 stroke every 20 sec. | N29 22.300 | W091 23.100 |
| Sabine Pass East Jetty | LA | Bell; 1 stroke every 20 sec. | N29 38.676 | W093 49.367 |
| Ship Shoal | LA | Bell; 1 stroke every 20 sec. | N28 55.002 | W091 04.002 |
| South Pass Lightship | LA | 1st-cl air siren; gp. 2 blasts every 30 sec. 1st blast 2 sec. Silent 2 sec. 2d blast 2 sec. Silent 24 sec. | N28 59.000 | W089 07.000 |
| South Pass East Jetty | LA | Bell; 1 stroke every 10 sec. | N28 59.382 | W089 08.190 |
| South Pass West Jetty | LA | Air diaphone: blast 2 sec., silent 8 sec. | N28 59.502 | W089 08.412 |
| Tchefuncte River Range Rear | LA | Bell; 1 stroke every 30 sec. | N30 22.776 | W090 10.146 |
| Timbalier Bay | LA | Bell; 1 stroke every 30 sec. | N29 02.816 | W090 21.417 |
| Merrill's Shell Bank | MS | Bell; 1 stroke every 20 sec. | N30 14.467 | W089 14.933 |
| Bluff Shoal | NC | Bell; 1 stroke every 15 sec. | N35 12.617 | W076 04.383 |
| Brant Island Shoal | NC | Bell; 1 stroke every 20 sec. | N35 08.150 | W076 17.583 |
| Cape Lookout Shoals Lightship | NC | 12-inch steam chime whistle: Blast 3 sec. Silent 17 sec. | N34 18.400 | W076 24.400 |
| Croatan Shoal | NC | Bell; 1 stroke every 15 sec. | N35 56.706 | W075 46.674 |
| Diamond Shoal Lightship | NC | 12-inch steam chime whistle: Blast 5 sec. Silent 55 sec. | N35 05.200 | W075 18.700 |
| Frying Pan Shoal Lightship | NC | 12-inch steam chime whistle: Blast 5 sec. Silent 55 sec. | N33 33.800 | W077 48.900 |
| Long Shoal | NC | Bell; 1 stroke, silent 5 sec., 1 stroke, silent 30 sec. | N35 33.558 | W075 43.194 |
| Pamlico Point | NC | Bell; 1 stroke every 10 sec. | N35 18.816 | W076 26.994 |
| Roanoke Marshes | NC | Air siren: blast 3 sec., silent 12 sec. | N35 48.667 | W075 42.045 |
| Roanoke River | NC | Bell; 1 stroke every 15 sec. | N35 57.033 | W076 41.667 |
| Wade Point | NC | Bell; gp. 2 strokes every 20 sec. | N36 09.400 | W075 58.700 |
| Charleston Lightship | SC | 12-inch steam whistle: Blast 3 sec. Silent 57 sec. | N32 41.000 | W079 43.000 |
| Fort Ripley Shoal | SC | Bell; 1 stroke every 10 sec. | N32 45.960 | W079 54.120 |
| Fort Sumter Range Rear | SC | Bell; gp. 2 strokes every 15 sec. | N32 45.960 | W079 54.120 |
| Galveston Jetty | TX | Air diaphone: blast 2 sec., silent 28 sec. | N29 19.674 | W094 41.562 |
| Heald Bank Lightship | TX | 12-inch steam whistle; gp. 2 blasts every 30 sec.: 1st blast 2 sec. Silent 6 sec. 2d blast 2 sec. Silent 20 sec. | N29 06.000 | W094 12.000 |
| Redfish Bar Cut | TX | Bell; 1 stroke every 30 sec. | N29 30.498 | W094 52.368 |
| Cape Henry | VA | 1st-cl. air siren: blast 4 sec., silent 41 sec. | N36 55.584 | W076 00.438 |
| Cherrystone Bar | VA | Bell; 1 stroke every 12 sec.; sounds continuously. | N37 15.384 | W076 01.944 |
| Chesapeake Lightship | VA | 12-inch steam chime whistle: Blast 3 sec. Silent 17 sec. | N37 05.000 | W075 40.300 |
| Craney Island | VA | Bell; 1 stroke every 12 sec. | N36 53.520 | W076 20.220 |
| Deep Water Shoals | VA | Bell; 1 stroke every 15 sec. | N37 08.934 | W076 38.208 |
| Nansemond River | VA | Bell; 1 stroke every 7 sec. | N36 54.720 | W076 26.700 |
| Newport News Middle Ground | VA | Bell; gp. 2 strokes every 15 sec. | N36 56.712 | W076 23.490 |
| Old Plantation Flats | VA | 3d-cl. reed horn: blast 3 sec., silent 7 sec. | N37 13.728 | W076 02.814 |
| Old Point Comfort | VA | Bell; 1 stroke every 71/2 sec. | N37 00.108 | W076 18.390 |
| Pages Rock | VA | Bell; 1 stroke every 15 sec. | N37 18.654 | W076 35.196 |
| Point of Shoals | VA | Bell; 1 stroke, silent 5 sec., 1 stroke, silent 20 sec. | N37 04.098 | W076 39.180 |
| Thimble Shoal | VA | Air diaphone: blast 2 sec., silent 8 sec. | N37 00.876 | W076 14.394 |
| Tue Marshes | VA | Bell; 1 stroke, silent 30 sec.; gp. 2 strokes, silent 30 sec. | N37 14.136 | W076 23.148 |
| White Shoal | VA | Bell; 1 stroke every 10 sec. | N37 01.308 | W076 31.650 |
| York Spit | VA | Bell; 1 stroke every 10 sec. | N37 12.583 | W076 15.250 |