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Current Station Locations and Ranges
MASSACHUSETTS COAST
Average Speed and Direction
| Min Before Flood |
Flood | Min Before Ebb |
Ebb | ||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| Station | Depth | Latitude | Longitude | Spd | Dir | Spd | Dir | Spd | Dir | Ebb | Dir |
| Merrimack River entrance | - | 42° 49.1' | 70° 48.6' | - | - | 2.2 | 285 | - | - | 1.4 | 105 |
| Newburyport, Merrimack River | - | 42° 48.8' | 70° 52.1' | - | - | 1.5 | 288 | - | - | 1.4 | 098 |
| Plum Island Sound entrance | - | 42° 42.3' | 70° 47.3' | - | - | 1.6 | 316 | - | - | 1.5 | 184 |
| Annisquam Harbor Light | - | 42° 40.1' | 70° 41.1' | - | - | 1.0 | 200 | - | - | 1.3 | 013 |
| Gloucester Harbor entrance | - | 42° 34.9' | 70° 40.5' | - | - | 0.3 | 340 | - | - | 0.3 | 195 |
| Blynman Canal ent., Gloucester Harbor | - | 42° 36.6' | 70° 40.4' | - | - | 3.0 | 310 | - | - | 3.3 | 130 |
| Marblehead Channel | - | 42° 30' | 70° 49' | - | - | 0.4 | 285 | - | - | 0.4 | 105 |
| Nahant, 1.8 n.mi. NE of East Point | 10 | 42° 26.00' | 70° 52.02' | - | - | 0.7 | 252 | 0.1 | 291 | 0.7 | 144 |
| . . . do. | 45 | 42° 26.00' | 70° 52.02' | - | - | 0.3 | 250 | - | - | 0.2 | 070 |
| . . . do. | 80 | 42° 26.00' | 70° 52.02' | 0.1 | 329 | 0.2 | 238 | - | - | 0.2 | 077 |
| Nahant, 0.4 n.mi. east of East Point | 15 | 42° 25.23' | 70° 53.63' | 0.2 | 118 | 0.5 | 205 | - | - | 0.6 | 045 |
| . . . do. | 25 | 42° 25.23' | 70° 53.63' | 0.1 | 102 | 0.4 | 198 | 0.1 | 282 | 0.5 | 027 |
| Nahant, 1 n.mi. SE of East Point | 45 | 42° 23.83' | 70° 51.17' | - | - | 0.3 | 253 | - | - | 0.3 | 074 |
| . . . do. | 70 | 42° 23.83' | 70° 51.17' | - | - | 0.2 | 261 | - | - | 0.2 | 090 |
| Pea Island, 0.4 n.mi. southeast of | 15 | 42° 24.63' | 70° 54.13' | - | - | 0.5 | 239 | 0.1 | 161 | 0.5 | 063 |
| . . . do. | 25 | 42° 24.63' | 70° 54.13' | - | - | 0.5 | 224 | - | - | 0.4 | 048 |
| . . . do. | 65 | 42° 24.63' | 70° 54.13' | 0.1 | 332 | 0.4 | 271 | - | - | 0.3 | 035 |
| Bass Point, 1.2 n.mi. southeast of | 10 | 42° 24.12' | 70° 55.07' | 0.1 | 351 | 0.7 | 259 | - | - | 0.7 | 066 |
| . . . do. | 45 | 42° 24.12' | 70° 55.07' | - | - | 0.4 | 251 | - | - | 0.3 | 086 |
| . . . do. | 60 | 42° 24.12' | 70° 55.07' | - | - | 0.3 | 250 | - | - | 0.2 | 091 |
| Little Nahant Cupola, 0.6 n.mi. west of | 10 | 42° 25.87' | 70° 56.83' | - | - | 0.4 | 033 | 0.1 | 137 | 0.5 | 219 |
| Sand Point, Black Marsh Channel | 10 | 42° 26.58' | 70° 56.52' | - | - | 0.5 | 013 | - | - | 0.5 | 203 |
| Lynn Harbor | 10 | 42° 27.27' | 70° 56.78' | - | - | 0.3 | 274 | - | - | 0.2 | 090 |
| Point of Pines, 0.5 n.mi. south of | 6 | 42° 25.97' | 70° 57.53' | - | - | 0.5 | 009 | - | - | 0.6 | 198 |
| Point of Pines, 0.1 n.mi. northeast of | 6 | 42° 26.52' | 70° 57.62' | - | - | 0.9 | 296 | - | - | 1.2 | 131 |
| Finn's Ledge Bell, 0.2 n.mi. west of | 10 | 42° 22.17' | 70° 55.42' | - | - | 0.6 | 226 | 0.2 | 295 | 0.8 | 035 |
| . . . do. | 25 | 42° 22.17' | 70° 55.42' | - | - | 0.3 | 229 | - | - | 0.5 | 033 |
| Winthrop Head, 1.1 n.mi. east of | 10 | 42° 21.93' | 70° 56.52' | 0.3 | 103 | 0.5 | 205 | 0.2 | 297 | 0.4 | 019 |
| Lovell Island, 1.3 n.mi. north of | 10 | 42° 21.30' | 70° 55.90' | 0.2 | 112 | 0.9 | 196 | 0.2 | 300 | 1.2 | 033 |
| . . . do. | 25 | 42° 21.30' | 70° 55.90' | 0.2 | 102 | 0.7 | 197 | 0.1 | 135 | 0.7 | 033 |
BOSTON HARBOR APPROACHES
Average Speed and Direction
| Min Before Flood |
Flood | Min Before Ebb |
Ebb | ||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| Station | Depth | Latitude | Longitude | Spd | Dir | Spd | Dir | Spd | Dir | Ebb | Dir |
| The Graves, 0.3 n.mi. SSE of | 10 | 42° 21.60' | 70° 52.00' | 0.3 | 171 | 0.6 | 227 | 0.1 | 135 | 0.6 | 103 |
| . . . do. | 45 | 42° 21.60' | 70° 52.00' | 0.1 | 186 | 0.4 | 262 | - | - | 0.5 | 085 |
| . . . do. | 60 | 42° 21.60' | 70° 52.00' | - | - | 0.3 | 252 | - | - | 0.4 | 070 |
| Thieves Ledge | 45 | 42° 19.28' | 70° 50.28' | 0.1 | 030 | 0.2 | 304 | - | - | 0.3 | 128 |
| Little Brewster Island, 1.5 n.mi. E of | 10 | 42° 19.68' | 70° 51.43' | 0.4 | 028 | 0.6 | 285 | 0.6 | 337 | 1.2 | 080 |
| . . . do. | 35 | 42° 19.68' | 70° 51.43' | - | - | 0.3 | 236 | 0.2 | 212 | 0.5 | 076 |
| . . . do. | 60 | 42° 19.68' | 70° 51.43' | 0.2 | 265 | 0.3 | 225 | - | - | 0.2 | 047 |
| Hypocrite Channel | 10 | 42° 20.95' | 70° 53.63' | 0.1 | 345 | 0.9 | 262 | 0.1 | 351 | 1.0 | 070 |
| Little Calf Island, 0.4 n.mi. NW of | 10 | 42° 21.05' | 70° 54.00' | - | - | 0.5 | 220 | 0.1 | 290 | 0.7 | 048 |
| Boston Light, 0.2 n.mi. south of | 10 | 42° 19.52' | 70° 53.40' | 0.1 | 203 | 1.0 | 267 | - | - | 1.4 | 100 |
| Point Allerton, 0.8 n.mi. NNW of | 10 | 42° 19.28' | 70° 53.25' | - | - | 1.1 | 270 | 0.1 | 005 | 1.4 | 086 |
| . . . do. | 25 | 42° 19.28' | 70° 53.25' | - | - | 1.0 | 257 | - | - | 1.0 | 090 |
| Point Allerton, 0.5 n.mi. NNW of | 10 | 42° 19.05' | 70° 53.10' | - | - | 1.0 | 280 | - | - | 1.3 | 079 |
| . . . do. | 25 | 42° 19.05' | 70° 53.10' | - | - | 0.9 | 262 | - | - | 0.9 | 080 |
| Point Allerton, 0.4 n.mi. northwest of | 10 | 42° 18.88' | 70° 53.23' | - | - | 0.7 | 265 | 0.2 | 353 | 0.8 | 080 |
| Calf Island, 0.4 n.mi. west of | 10 | 42° 20.33' | 70° 54.38' | - | - | 0.6 | 198 | - | - | 0.6 | 037 |
| . . . do. | 25 | 42° 20.33' | 70° 54.38' | - | - | 0.5 | 203 | - | - | 0.3 | 052 |
| . . . do. | 45 | 42° 20.33' | 70° 54.38' | - | - | 0.4 | 209 | - | - | 0.3 | 020 |
| Aldridge Ledge, 0.2 n.mi. north of | 10 | 42° 20.97' | 70° 54.80' | 0.3 | 139 | 0.9 | 230 | 0.1 | 326 | 1.2 | 061 |
| . . . do. | 25 | 42° 20.97' | 70° 54.80' | - | - | 0.7 | 223 | - | - | 0.7 | 042 |
| Black Rock Channel | 10 | 42° 19.73' | 70° 54.93' | 0.1 | 325 | 0.6 | 247 | 0.2 | 122 | 0.9 | 046 |
| Deer Island Light, 0.4 n.mi. NW of | 35 | 42° 20.58' | 70° 55.70' | - | - | 0.2 | 307 | - | - | 0.6 | 116 |
| Lovell Island, 0.4 n.mi. north of | 10 | 42° 20.45' | 70° 55.80' | 0.1 | 330 | 1.2 | 259 | 0.1 | 337 | 1.2 | 064 |
| . . . do. | 25 | 42° 20.45' | 70° 55.80' | - | - | 1.2 | 264 | - | - | 0.9 | 074 |
| Deer Island, 0.7 n.mi. ESE of | 10 | 42° 20.65' | 70° 56.30' | - | - | 1.3 | 220 | - | - | 1.4 | 048 |
| . . . do. | 35 | 42° 20.65' | 70° 56.30' | - | - | 1.1 | 221 | - | - | 0.9 | 048 |
| Deer Island Light, 0.8 n.mi. ESE of | 10 | 42° 20.22' | 70° 56.28' | 0.2 | 138 | 0.9 | 233 | - | - | 0.9 | 066 |
| Deer Island Light, 0.4 n.mi. east of | 10 | 42° 20.45' | 70° 56.77' | 0.3 | 319 | 0.9 | 240 | 0.2 | 138 | 1.0 | 057 |
| . . . do. | 35 | 42° 20.45' | 70° 56.77' | - | - | 1.1 | 264 | - | - | 0.8 | 053 |
| Deer Island Light, 0.7 n.mi. ESE of | 35 | 42° 20.25' | 70° 56.38' | 0.1 | 312 | 1.0 | 233 | - | - | 0.6 | 062 |
BOSTON HARBOR-PRESIDENT ROADS
Average Speed and Direction
| Min Before Flood |
Flood | Min Before Ebb |
Ebb | ||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| Station | Depth | Latitude | Longitude | Spd | Dir | Spd | Dir | Spd | Dir | Ebb | Dir |
| BOSTON HARBOR (Deer Island Light) | 10 | 42° 20.27' | 70° 57.37' | - | - | 1.1 | 254 | 0.3 | 184 | 1.2 | 111 |
| Deer Island Light, 0.3 n.mi. SSE of | 10 | 42° 20.12' | 70° 57.42' | - | - | 1.4 | 265 | 0.4 | 199 | 1.0 | 082 |
| . . . do. | 35 | 42° 20.12' | 70° 57.42' | - | - | 1.4 | 261 | - | - | 1.0 | 090 |
| Deer Island Light, 0.4 n.mi. SSE of | 10 | 42° 19.97' | 70° 57.42' | - | - | 1.5 | 265 | 0.2 | 178 | 1.2 | 073 |
| . . . do. | 25 | 42° 19.97' | 70° 57.42' | - | - | 1.4 | 269 | - | - | 1.0 | 081 |
| Deer Island, southwest of | 10 | 42° 20.63' | 70° 57.78' | - | - | 0.4 | 351 | 0.3 | 065 | 0.6 | 137 |
| Long Island Head, 0.9 n.mi. NW of | 10 | 42° 20.40' | 70° 58.43' | 0.1 | 175 | 0.6 | 302 | - | - | 0.6 | 103 |
| . . . do. | 35 | 42° 20.40' | 70° 58.43' | - | - | 0.4 | 304 | - | - | 0.4 | 079 |
| Deer Island Flats | 10 | 42° 20.83' | 70° 58.65' | - | - | 0.4 | 327 | 0.4 | 049 | 0.5 | 107 |
| Snake Island, southwest of | 10 | 42° 21.77' | 70° 59.22' | - | - | 0.4 | 312 | - | - | 0.5 | 134 |
| Deer Island Light, 1.0 n.mi. WSW of | 10 | 42° 19.97' | 70° 58.43' | - | - | 1.3 | 254 | - | - | 0.8 | 086 |
| . . . do. | 35 | 42° 19.97' | 70° 58.43' | - | - | 1.2 | 273 | - | - | 0.4 | 082 |
| Spectacle I. and Long I., between | 10 | 42° 19.35' | 70° 58.45' | - | - | 0.5 | 217 | 0.4 | 121 | 0.6 | 038 |
| Spectacle Island, 0.2 n.mi. south of | 10 | 42° 18.98' | 70° 59.15' | 0.1 | 349 | 0.5 | 244 | 0.1 | 180 | 0.4 | 098 |
| Spectacle Island, 0.3 n.mi. north of | 10 | 42° 19.95' | 70° 59.13' | - | - | 1.2 | 271 | 0.2 | 359 | 0.9 | 081 |
| . . . do. | 35 | 42° 19.95' | 70° 59.13' | - | - | 0.8 | 280 | - | - | 0.6 | 086 |
| Spectacle Island, 0.7 n.mi. north of | 10 | 42° 20.10' | 70° 59.27' | - | - | 0.9 | 280 | 0.2 | 000 | 0.8 | 082 |
| . . . do. | 25 | 42° 20.10' | 70° 59.27' | - | - | 0.7 | 287 | 0.1 | 007 | 0.6 | 086 |
| Spectacle Island, 0.1 n.mi. north of | 10 | 42° 19.83' | 70° 59.27' | - | - | 1.1 | 277 | - | - | 0.8 | 080 |
| . . . do. | 25 | 42° 19.83' | 70° 59.27' | - | - | 0.9 | 280 | - | - | 0.6 | 081 |
| Spectacle I. and Thompson I., between | 10 | 42° 19.25' | 70° 59.57' | 0.2 | 227 | 0.2 | 306 | 0.2 | 045 | 0.4 | 127 |
| Thompson Island, 0.7 n.mi. NNE of | 10 | 42° 19.97' | 70° 59.90' | - | - | 0.8 | 281 | 0.2 | 003 | 0.6 | 086 |
| . . . do. | 35 | 42° 19.97' | 70° 59.90' | - | - | 0.5 | 277 | - | - | 0.3 | 091 |
| Fort Independence, 0.3 n.mi. east of | 10 | 42° 20.33' | 71° 00.22' | - | - | 0.6 | 303 | 0.2 | 061 | 0.6 | 125 |
| Fort Independence, 0.4 n.mi. NW of | 10 | 42° 20.63' | 71° 00.40' | - | - | 0.4 | 288 | 0.1 | 006 | 0.6 | 113 |
| South Boston, Pier 4, 0.2 n.mi. NNE of | 10 | 42° 21.13' | 71° 01.85' | - | - | 0.3 | 299 | - | - | 0.3 | 118 |
| . . . do. | 25 | 42° 21.13' | 71° 01.85' | - | - | 0.4 | 030 | - | - | 0.2 | 120 |
| Charles River | 10 | 42° 22.18' | 71° 03.38' | Current Weak and Variable | |||||||
| East Boston, Pier 10, southeast of | 10 | 42° 22.55' | 71° 02.80' | - | - | 0.2 | 017 | - | - | 0.4 | 194 |
| . . . do. | 25 | 42° 22.55' | 71° 02.80' | - | - | 0.3 | 030 | - | - | 0.2 | 193 |
| Chelsea River, west of bascule bridge | 10 | 42° 23.07' | 71° 02.53' | - | - | 0.2 | 048 | - | - | 0.2 | 240 |
| Chelsea River, below bascule bridge | 10 | 42° 23.03' | 71° 01.70' | - | - | 0.2 | 088 | - | - | 0.3 | 272 |
| Mystic River Bridge, 0.1 n.mi. west of | 10 | 42° 23.15' | 71° 03.02' | - | - | 0.1 | 267 | - | - | 0.1 | 093 |
| Mystic River Bridge, northwest of | 10 | 42° 23.15' | 71° 02.95' | - | - | 0.1 | 300 | - | - | 0.1 | 098 |
| City Point, 0.8 n.mi. SSE of | 10 | 42° 19.22' | 71° 00.88' | - | - | 0.6 | 248 | 0.1 | 170 | 0.6 | 069 |
| Squantum Point, 0.8 n.mi. northeast of | 10 | 42° 18.63' | 71° 01.70' | - | - | 0.4 | 216 | - | - | 0.5 | 036 |
| Squantum Point, 0.4 n.mi. NNE of | 10 | 42° 18.38' | 71° 02.23' | - | - | 0.4 | 266 | - | - | 0.5 | 091 |
| Neponset River | 10 | 42° 18.25' | 71° 02.58' | - | - | 0.4 | 218 | - | - | 0.4 | 025 |
BOSTON HARBOR-NANTASKET ROADS
Average Speed and Direction
| Min Before Flood |
Flood | Min Before Ebb |
Ebb | ||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| Station | Depth | Latitude | Longitude | Spd | Dir | Spd | Dir | Spd | Dir | Ebb | Dir |
| Lovell Island, 0.1 n.mi. south of | 10 | 42° 19.40' | 70° 55.48' | 0.2 | 205 | 0.7 | 275 | 0.2 | 169 | 1.0 | 092 |
| . . . do. | 24 | 42° 19.40' | 70° 55.48' | - | - | 0.7 | 294 | - | - | 0.9 | 095 |
| Georges Island, northeast of | 10 | 42° 19.37' | 70° 55.53' | 0.2 | 191 | 0.7 | 279 | 0.2 | 183 | 0.8 | 100 |
| Georges Island, north of | 25 | 42° 19.42' | 70° 55.67' | - | - | 0.8 | 298 | - | - | 0.9 | 112 |
| Gallops Island, 0.2 n.mi. SSE of | 10 | 42° 19.38' | 70° 55.93' | - | - | 1.1 | 243 | - | - | 1.0 | 062 |
| Gallops Island, 0.1 n.mi. southeast of | 10 | 42° 19.45' | 70° 55.90' | - | - | 0.9 | 225 | 0.2 | 130 | 1.0 | 063 |
| . . . do. | 35 | 42° 19.45' | 70° 55.90' | - | - | 0.9 | 255 | - | - | 0.9 | 052 |
| Gallops Island, The Narrows | 20 | 42° 19.62' | 70° 56.03' | - | - | 0.5 | 135 | - | - | 0.2 | 262 |
| Lovell Island, The Narrows | 10 | 42° 19.67' | 70° 56.03' | 0.2 | 172 | 0.6 | 128 | - | - | 0.5 | 293 |
| Lovell Island, west of | 10 | 42° 19.72' | 70° 55.97' | 0.2 | 232 | 0.4 | 134 | - | - | 1.2 | 299 |
| . . . do. | 24 | 42° 19.72' | 70° 55.97' | - | - | 0.4 | 136 | - | - | 1.2 | 313 |
| Georges Island, 0.5 n.mi. ESE of | 10 | 42° 19.17' | 70° 54.97' | 0.2 | 165 | 1.0 | 244 | - | - | 1.2 | 065 |
| Georges Island, 0.4 n.mi. east of | 10 | 42° 19.12' | 70° 54.97' | 0.3 | 180 | 1.0 | 248 | - | - | 1.1 | 057 |
| Georges Island, 0.5 n.mi. southeast of | 10 | 42° 18.62' | 70° 55.00' | 0.2 | 132 | 1.2 | 243 | 0.2 | 151 | 1.5 | 070 |
| . . . do. | 25 | 42° 18.62' | 70° 55.00' | - | - | 1.1 | 247 | - | - | 1.4 | 078 |
| Georges Island, 0.3 n.mi. SSE of | 10 | 42° 18.78' | 70° 55.55' | 0.1 | 159 | 1.1 | 234 | 0.4 | 126 | 1.2 | 069 |
| . . . do. | 35 | 42° 18.78' | 70° 55.55' | - | - | 1.0 | 237 | 0.2 | 346 | 0.8 | 073 |
| Georges Island, 0.4 n.mi. SSE of | 10 | 42° 18.67' | 70° 55.53' | 0.2 | 145 | 1.3 | 236 | 0.3 | 161 | 0.9 | 046 |
| . . . do. | 35 | 42° 18.67' | 70° 55.53' | - | - | 1.2 | 240 | 0.1 | 347 | 1.0 | 065 |
| Nubble Channel | 10 | 42° 19.73' | 70° 56.93' | 0.1 | 282 | 0.8 | 187 | 0.2 | 139 | 0.8 | 006 |
| Hull Gut | 10 | 42° 18.20' | 70° 55.60' | 0.1 | 073 | 1.2 | 163 | - | - | 1.8 | 350 |
| . . . do. | 25 | 42° 18.20' | 70° 55.60' | 0.1 | 073 | 1.3 | 153 | - | - | 2.0 | 354 |
| Peddocks Island, 0.2 n.mi. north of | 10 | 42° 18.32' | 70° 56.00' | - | - | 1.0 | 246 | - | - | 0.7 | 257 |
| . . . do. | 25 | 42° 18.32' | 70° 56.00' | 0.1 | 337 | 1.0 | 255 | 0.1 | 178 | 0.6 | 060 |
| Peddocks Island, 0.3 n.mi. northwest of | 10 | 42° 18.40' | 70° 56.13' | - | - | 1.1 | 245 | - | - | 1.0 | 060 |
| . . . do. | 25 | 42° 18.40' | 70° 56.13' | 0.2 | 342 | 1.0 | 250 | - | - | 0.6 | 055 |
| . . . do. | 40 | 42° 18.40' | 70° 56.13' | - | - | 1.0 | 261 | - | - | 0.5 | 060 |
| Rainsford I. and Windmill Pt., between | 10 | 42° 18.52' | 70° 56.32' | - | - | 0.8 | 251 | 0.3 | 168 | 1.0 | 056 |
| . . . do. | 25 | 42° 18.52' | 70° 56.32' | - | - | 0.8 | 256 | 0.2 | 329 | 0.5 | 053 |
| Gallops Island, 0.5 n.mi. southwest of | 10 | 42° 19.13' | 70° 56.82' | 0.2 | 165 | 0.6 | 238 | 0.3 | 204 | 0.7 | 074 |
| . . . do. | 25 | 42° 19.13' | 70° 56.82' | - | - | 0.5 | 237 | - | - | 0.4 | 072 |
| Rainsford Island, 0.2 n.mi. NE of | 10 | 42° 18.90' | 70° 56.95' | - | - | 0.6 | 239 | 0.1 | 143 | 0.5 | 084 |
| . . . do. | 20 | 42° 18.90' | 70° 56.95' | - | - | 0.5 | 237 | - | - | 0.3 | 086 |
| Rainsford Island, 0.4 n.mi. SE of | 10 | 42° 18.50' | 70° 56.62' | - | - | 0.6 | 225 | 0.2 | 127 | 0.8 | 055 |
| Long I. and Rainsford I., between | 10 | 42° 18.70' | 70° 57.78' | - | - | 0.7 | 226 | - | - | 0.9 | 049 |
| . . . do. | 25 | 42° 18.70' | 70° 57.78' | - | - | 0.6 | 229 | 0.1 | 322 | 0.8 | 033 |
| West Head, Peddocks I., 0.1 n.mi. W of | 10 | 42° 17.45' | 70° 57.22' | - | - | 1.1 | 208 | - | - | 0.9 | 018 |
| . . . do. | 30 | 42° 17.45' | 70° 57.22' | - | - | 0.9 | 198 | - | - | 0.6 | 038 |
| Sunken Ledge, 0.2 n.mi. northwest of | 10 | 42° 17.87' | 70° 57.87' | 0.3 | 304 | 0.4 | 223 | 0.1 | 307 | 0.7 | 016 |
| . . . do. | 20 | 42° 17.87' | 70° 57.87' | 0.2 | 299 | 0.3 | 236 | 0.2 | 335 | 0.5 | 030 |
| West Head, Long I., 0.4 n.mi. south of | 10 | 42° 18.32' | 70° 58.28' | - | - | 0.7 | 231 | - | - | 0.6 | 060 |
| . . . do. | 20 | 42° 18.32' | 70° 58.28' | - | - | 0.5 | 231 | - | - | 0.5 | 043 |
| Moon Head, 0.4 n.mi. east of | 10 | 42° 18.38' | 70° 58.73' | 0.3 | 310 | 0.3 | 259 | - | - | 0.4 | 080 |
| West Head, 0.2 n.mi. southwest of | 10 | 42° 17.15' | 70° 57.18' | - | - | 1.4 | 167 | - | - | 1.4 | 322 |
| Nut Island, 0.4 n.mi. NNE of | 10 | 42° 17.08' | 70° 57.22' | 0.2 | 223 | 1.3 | 158 | - | - | 1.4 | 312 |
| . . . do. | 20 | 42° 17.08' | 70° 57.22' | 0.1 | 220 | 1.2 | 155 | - | - | 1.4 | 321 |
| Nut Island, 0.2 n.mi. NNE of | 10 | 42° 16.98' | 70° 57.32' | 0.1 | 245 | 1.2 | 146 | - | - | 1.2 | 309 |
| . . . do. | 20 | 42° 16.98' | 70° 57.32' | 0.1 | 216 | 1.0 | 131 | - | - | 1.0 | 303 |
| Peddocks Island, west of | 10 | 42° 17.23' | 70° 57.92' | 0.2 | 305 | 0.5 | 187 | - | - | 0.4 | 358 |
| Moon Head, 0.9 n.mi. southeast of | 10 | 42° 17.50' | 70° 58.93' | 0.2 | 314 | 0.3 | 227 | 0.2 | 112 | 0.3 | 033 |
| Squantum, 0.3 n.mi. southeast of | 8 | 42° 17.40' | 71° 00.10' | Current Weak and Variable | |||||||
BOSTON HARBOR-HINGHAM BAY
Average Speed and Direction
| Min Before Flood |
Flood | Min Before Ebb |
Ebb | ||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| Station | Depth | Latitude | Longitude | Spd | Dir | Spd | Dir | Spd | Dir | Ebb | Dir |
| Weir River entrance | 10 | 42° 16.53' | 70° 52.83' | - | - | 0.7 | 076 | - | - | 0.8 | 272 |
| Strawberry Hill, 0.4 n.mi. west of | 6 | 42° 17.40' | 70° 53.60' | Current Weak and Variable | |||||||
| Crow Point, 0.2 n.mi. north of | 10 | 42° 15.97' | 70° 53.70' | - | - | 0.3 | 146 | - | - | 0.3 | 319 |
| Bumkin Island, 0.1 n.mi. west of | 10 | 42° 16.85' | 70° 54.37' | - | - | 0.6 | 166 | 0.2 | 241 | 0.8 | 320 |
| . . . do. | 20 | 42° 16.85' | 70° 54.37' | 0.1 | 248 | 0.5 | 161 | 0.1 | 274 | 0.6 | 316 |
| Windmill Point, 0.7 n.mi. SSE of | 10 | 42° 17.55' | 70° 54.97' | - | - | 1.1 | 128 | 0.4 | 083 | 0.4 | 350 |
| . . . do. | 25 | 42° 17.55' | 70° 54.97' | - | - | 1.0 | 136 | 0.1 | 015 | 0.2 | 315 |
| Bumkin Island, 0.4 n.mi. west of | 10 | 42° 16.83' | 70° 54.75' | - | - | 0.5 | 195 | 0.2 | 263 | 0.3 | 303 |
| Sheep Island, 0.3 n.mi. west of | 10 | 42° 16.87' | 70° 55.98' | 0.2 | 245 | 1.0 | 075 | 0.3 | 328 | 0.4 | 305 |
| . . . do. | 25 | 42° 16.87' | 70° 55.98' | 0.2 | 150 | 0.8 | 082 | - | - | 0.3 | 300 |
| Grape Island and Lower Neck, between | 10 | 42° 15.87' | 70° 55.50' | - | - | 0.7 | 094 | - | - | 0.9 | 281 |
| Grape Island | 10 | 42° 16.08' | 70° 55.88' | - | - | 0.4 | 203 | - | - | 0.4 | 345 |
| Pig Rock, north of | 10 | 42° 16.93' | 70° 56.45' | - | - | 0.7 | 078 | - | - | 1.0 | 290 |
| . . . do. | 25 | 42° 16.93' | 70° 56.45' | - | - | 0.6 | 082 | 0.1 | 019 | 0.8 | 293 |
| Pig Rock, northwest of | 20 | 42° 16.88' | 70° 56.55' | - | - | 1.0 | 085 | - | - | 0.8 | 283 |
| Stodders Neck, Weymouth Back River | 10 | 42° 15.20' | 70° 55.65' | - | - | 0.5 | 268 | - | - | 0.3 | 093 |
| Gull Point, 0.4 n.mi. ESE of | 10 | 42° 15.18' | 70° 56.82' | - | - | 0.4 | 229 | - | - | 0.4 | 069 |
| . . . do. | 25 | 42° 15.18' | 70° 56.82' | - | - | 0.4 | 235 | - | - | 0.2 | 042 |
| Kings Cove, off | 10 | 42° 14.83' | 70° 57.65' | - | - | 0.3 | 242 | 0.1 | 014 | 0.4 | 063 |
| Germantown Point | 20 | 42° 14.78' | 70° 57.88' | - | - | 0.3 | 269 | - | - | 0.4 | 070 |
| Pine Point, southeast of | 10 | 42° 14.28' | 70° 58.08' | - | - | 0.2 | 149 | - | - | 0.1 | 303 |
| Philip Head, Town River Bay | 10 | 42° 15.00' | 70° 58.22' | - | - | 0.4 | 289 | - | - | 0.3 | 095 |
CAPE COD BAY
Average Speed and Direction
| Min Before Flood |
Flood | Min Before Ebb |
Ebb | ||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| Station | Depth | Latitude | Longitude | Spd | Dir | Spd | Dir | Spd | Dir | Ebb | Dir |
| Race Point, 7 miles north of | - | 42° 11' | 70° 16' | - | - | 1.5 | 290 | - | - | 1.5 | - - |
| Race Point, 1 mile northwest of | - | 42° 5' | 70° 15' | - | - | 1.0 | 226 | - | - | 0.9 | 061 |
| Provincetown Harbor | - | 42° 3' | 70° 10' | - | - | 0.6 | 315 | - | - | 0.4 | 135 |
| Wellfleet Harbor | - | 41° 54' | 70° 3' | - | - | 0.7 | 020 | - | - | 0.5 | 200 |
| Barnstable Harbor | - | 41° 43.6' | 70° 16.4' | - | - | 1.2 | 192 | - | - | 1.4 | 004 |
| Sandwich Harbor | 41° 46' | 70° 29' | Current Weak and Variable | ||||||||
| Sagamore Beach | 41° 48' | 70° 31' | Current Weak and Variable | ||||||||
| Ellisville Harbor, 1 mile east of | - | 41° 51' | 70° 30' | - | - | 0.3 | 200 | - | - | 0.3 | 020 |
| Manomet Point | - | 41° 56' | 70° 32' | - | - | 1.1 | 155 | - | - | 0.9 | 010 |
| Gurnet Point, 1 mile east of | - | 42° 0' | 70° 35' | - | - | 1.4 | 250 | - | - | 1.0 | - - |
| Plymouth Harbor | - | 41° 58' | 70° 39' | - | - | 0.5 | 245 | - | - | 0.4 | 010 |
| Farnham Rock, 1 mile east of | - | 42° 6' | 70° 35' | - | - | 1.1 | 180 | - | - | 0.9 | 010 |
MASSACHUSETTS COAST-cont.
Average Speed and Direction
| Min Before Flood |
Flood | Min Before Ebb |
Ebb | ||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| Station | Depth | Latitude | Longitude | Spd | Dir | Spd | Dir | Spd | Dir | Ebb | Dir |
| Old Man Shoal, Nantucket Shoals | - | 41° 13.6' | 69° 59.0' | - | - | 1.9 | 080 | - | - | 1.6 | 225 |
| Miacomet Pond, 3.0 miles SSE of | - | 41° 11.4' | 70° 05.8' | - | - | 1.3 | 080 | - | - | 1.4 | 280 |
| Tuckernuck Island, 4.2 miles SSW of | - | 41° 13.57' | 70° 16.90' | - | - | 0.5 | 090 | - | - | 1.0 | 280 |
NANTUCKET SOUND ENTRANCE
Average Speed and Direction
| Min Before Flood |
Flood | Min Before Ebb |
Ebb | ||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| Station | Depth | Latitude | Longitude | Spd | Dir | Spd | Dir | Spd | Dir | Ebb | Dir |
| Pollock Rip Channel, east end | - | 41° 33.9' | 69° 55.4' | - | - | 2.0 | 053 | - | - | 1.8 | 212 |
| POLLOCK RIP CHANNEL (Butler Hole) | - | 41° 33' | 69° 59' | - | - | 2.0 | 037 | - | - | 1.8 | 226 |
NANTUCKET SOUND
Average Speed and Direction
| Min Before Flood |
Flood | Min Before Ebb |
Ebb | ||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| Station | Depth | Latitude | Longitude | Spd | Dir | Spd | Dir | Spd | Dir | Ebb | Dir |
| Monomoy Pt., channel 0.2 mile west of | - | 41° 33.0' | 70° 01.3' | - | - | 1.7 | 170 | - | - | 2.0 | 346 |
| Chatham Roads | 41° 38.6' | 70° 01.7' | Current Weak and Variable | ||||||||
| Stage Harbor, west of Morris Island | - | 41° 39.4' | 69° 58.5' | - | - | 0.5 | 335 | - | - | 1.0 | 144 |
| Dennis Port, 2.2 miles south of | - | 41° 37.0' | 70° 06.9' | 0.1 | 138 | 0.3 | 077 | 0.1 | 052 | 0.3 | 269 |
| Monomoy Point, 6 miles west of | - | 41° 33.5' | 70° 09.0' | 0.1 | 194 | 0.5 | 090 | 0.1 | 256 | 0.5 | 275 |
| Handkerchief Lighted Whistle Buoy 'H' | - | 41° 29.3' | 70° 04.0' | - | - | 1.3 | 080 | - | - | 1.3 | 251 |
| Halfmoon Shoal, 1.9 miles northeast of | - | 41° 29.05' | 70° 11.55' | - | - | 0.8 | 110 | - | - | 0.6 | 265 |
| Halfmoon Shoal, 3.5 miles east of | - | 41° 28.1' | 70° 09.2' | - | - | 1.1 | 088 | - | - | 1.0 | 295 |
| Great Point, 0.5 mile west of | - | 41° 23.6' | 70° 03.7' | - | - | 1.1 | 029 | - | - | 1.2 | 195 |
| Great Point, 3 miles west of | - | 41° 23.4' | 70° 06.8' | - | - | 0.8 | 066 | - | - | 0.8 | 248 |
| Tuckernuck Shoal, off east end | - | 41° 24.3' | 70° 10.4' | 0.3 | 000 | 0.9 | 113 | 0.3 | 186 | 0.9 | 287 |
| Nantucket Harbor entrance channel | - | 41° 18.4' | 70° 06.0' | - | - | 1.2 | 171 | - | - | 1.5 | 350 |
| Eel Pt., Nantucket I. 2.5 miles NE of | - | 41° 19.3' | 70° 10.2' | - | - | 0.6 | 094 | - | - | 0.4 | 284 |
| Muskeget I., channel 1 mile northeast of | - | 41° 21.0' | 70° 17.1' | - | - | 1.1 | 108 | - | - | 1.5 | 295 |
| Muskeget Rock, 1.3 miles southwest of | - | 41° 19.2' | 70° 23.6' | - | - | 1.3 | 024 | - | - | 1.0 | 192 |
| Muskeget Channel | - | 41° 20.9' | 70° 25.2' | - | - | 3.8 | 021 | - | - | 3.3 | 200 |
| Wasque Point, 2.0 miles southwest of | - | 41° 19.90' | 70° 29.25' | - | - | 1.3 | 075 | - | - | 1.2 | 280 |
| Long Shoal-Norton Shoal, between | - | 41° 24.50' | 70° 20.00' | - | - | 1.4 | 100 | - | - | 1.1 | 260 |
| Cape Poge Lt., 1.7 miles SSE of | - | 41° 24.0' | 70° 25.6' | - | - | 1.6 | 025 | - | - | 1.3 | 215 |
| Cross Rip Channel | - | 41° 26.9' | 70° 17.5' | - | - | 1.3 | 091 | - | - | 0.9 | 272 |
| Cape Poge Lt., 3.2 miles northeast of | - | 41° 27.5' | 70° 24.0' | - | - | 1.6 | 095 | - | - | 1.2 | 300 |
| Broken Ground-Horseshoe Shoal, between | - | 41° 33.0' | 70° 17.1' | 0.2 | 000 | 1.1 | 107 | 0.1 | 224 | 0.9 | 276 |
| Point Gammon, 1.2 miles south of | - | 41° 35.3' | 70° 15.4' | - | - | 1.1 | 105 | - | - | 1.0 | 260 |
| Hyannis Harbor, entrance off breakwater | 41° 37.4' | 70° 17.5' | Current Weak and Variable | ||||||||
| Lewis Bay entrance channel | - | 41° 37.9' | 70° 16.4' | - | - | 0.9 | 004 | - | - | 1.3 | 184 |
| Cotuit Bay entrance (Bluff Point) | - | 41° 36.6' | 70° 25.8' | - | - | 0.5 | 035 | - | - | 0.7 | 218 |
| Wreck Shoal-Eldridge Shoal, between | - | 41° 32.0' | 70° 25.7' | - | - | 1.7 | 062 | - | - | 1.4 | 245 |
| Hedge Fence Lighted Gong Buoy 22 | - | 41° 28.3' | 70° 29.0' | - | - | 1.4 | 108 | - | - | 1.2 | 268 |
| Cape Poge Light, 1.4 miles west of | - | 41° 25.45' | 70° 29.00' | - | - | 0.3 | 095 | - | - | 0.2 | 250 |
| Edgartown, Inner Harbor | - | 41° 23.4' | 70° 30.5' | - | - | 1.1 | 075 | - | - | 1.1 | 270 |
| Katama Pt., 0.6 mi. NNW of, Katama Bay | - | 41° 21.9' | 70° 30.3' | - | - | 0.6 | 325 | - | - | 0.5 | 180 |
| East Chop-Squash Meadow, between | - | 41° 27.9' | 70° 32.2' | - | - | 1.4 | 131 | - | - | 1.8 | 329 |
| East Chop, 1 mile north of | - | 41° 29.1' | 70° 33.5' | - | - | 2.2 | 116 | - | - | 2.2 | 297 |
| Vineyard Haven | 41° 28.1' | 70° 35.2' | Current Weak and Variable | ||||||||
| West Chop, 0.8 mile north of | - | 41° 29.6' | 70° 35.7' | - | - | 3.1 | 096 | - | - | 3.0 | 282 |
| Hedge Fence-L'Hommedieu Shoal, between | - | 41° 30.3' | 70° 32.2' | - | - | 2.1 | 106 | - | - | 2.2 | 276 |
| Waquoit Bay entrance | - | 41° 32.9' | 70° 31.8' | - | - | 1.5 | 348 | - | - | 1.4 | 203 |
| L'Hommedieu Shoal, north of west end | - | 41° 31.6' | 70° 34.6' | - | - | 2.3 | 080 | - | - | 2.3 | 268 |
| Nobska Point, 1.8 miles east of | - | 41° 31.1' | 70° 37.1' | - | - | 2.3 | 063 | - | - | 1.7 | 240 |
VINEYARD SOUND
Average Speed and Direction
| Min Before Flood |
Flood | Min Before Ebb |
Ebb | ||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| Station | Depth | Latitude | Longitude | Spd | Dir | Spd | Dir | Spd | Dir | Ebb | Dir |
| West Chop, 0.2 mile west of | - | 41° 29.0' | 70° 36.6' | - | - | 2.7 | 059 | - | - | 1.4 | 241 |
| Nobska Point, 1 mile southeast of | - | 41° 30.1' | 70° 38.6' | - | - | 2.6 | 071 | - | - | 2.4 | 259 |
| Norton Point, 0.5 mile north of | - | 41° 28.1' | 70° 39.9' | - | - | 3.4 | 050 | - | - | 2.4 | 240 |
| Tarpaulin Cove, 1.5 miles east of | - | 41° 28.3' | 70° 43.5' | - | - | 1.9 | 055 | - | - | 2.3 | 232 |
| Robinsons Hole, 1.2 miles southeast of | - | 41° 26.1' | 70° 46.8' | - | - | 1.9 | 060 | - | - | 2.1 | 240 |
| Gay Head, 3 miles northeast of | - | 41° 23.1' | 70° 47.0' | - | - | 0.9 | 081 | - | - | 1.3 | 238 |
| Gay Head, 3 miles north of | - | 41° 24.1' | 70° 51.2' | - | - | 1.1 | 074 | - | - | 1.2 | 255 |
| Gay Head, 1.5 miles northwest of | - | 41° 21.8' | 70° 51.8' | - | - | 2.0 | 012 | - | - | 2.0 | 249 |
VINEYARD SOUND-BUZZARDS BAY
Average Speed and Direction
| Min Before Flood |
Flood | Min Before Ebb |
Ebb | |||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Station | Depth | Latitude | Longitude | Spd | Dir | Spd | Dir | Spd | Dir | Ebb | Dir | |
| Woods Hole <59> | ||||||||||||
| South end | - | 41° 30.8' | 70° 40.2' | - | - | 1.5 | 135 | - | - | 1.1 | 318 | |
| 0.1 mile SW of Devils Foot Island | - | 41° 31.2' | 70° 41.1' | - | - | 3.5 | 094 | - | - | 3.6 | 276 | |
| North end | - | 41° 31.5' | 70° 41.6' | - | - | 0.8 | 160 | - | - | 0.7 | 007 | |
| Robinsons Hole | ||||||||||||
| South end | - | 41° 26.7' | 70° 48.2' | - | - | 0.8 | 162 | - | - | 1.0 | 339 | |
| Middle | - | 41° 27.0' | 70° 48.4' | - | - | 2.8 | 146 | - | - | 2.9 | 316 | |
| North end | - | 41° 27.4' | 70° 48.7' | - | - | 1.0 | 161 | - | - | 1.2 | 338 | |
| Quicks Hole | ||||||||||||
| South end | - | 41° 26.3' | 70° 50.5' | - | - | 1.9 | 140 | - | - | 2.0 | 300 | |
| Middle | - | 41° 26.6' | 70° 50.9' | - | - | 2.5 | 167 | - | - | 2.2 | 339 | |
| North end | - | 41° 27.1' | 70° 51.0' | - | - | 2.0 | 165 | - | - | 2.6 | 002 | |
| Canapitsit Channel | - | 41° 25.4' | 70° 54.5' | - | - | 2.6 | 156 | - | - | 1.7 | 312 | |
BUZZARDS BAY
Average Speed and Direction
| Min Before Flood |
Flood | Min Before Ebb |
Ebb | ||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| Station | Depth | Latitude | Longitude | Spd | Dir | Spd | Dir | Spd | Dir | Ebb | Dir |
| Westport River entrance | - | 41° 30.5' | 71° 05.3' | - | - | 2.2 | 290 | - | - | 2.5 | 108 |
| Ribbon Reef-Sow & Pigs Reef, between | - | 41° 25.3' | 70° 58.2' | - | - | 0.8 | 062 | - | - | 1.2 | 237 |
| Penikese Island, 0.8 mile northwest of | - | 41° 27.9' | 70° 56.2' | - | - | 1.2 | 050 | - | - | 1.1 | 254 |
| Penikese Island, 0.2 mile south of | - | 41° 26.6' | 70° 55.5' | - | - | 0.7 | 093 | - | - | 0.9 | 287 |
| Gull I. and Nashawena I., between | - | 41° 26.2' | 70° 54.2' | - | - | 0.9 | 091 | - | - | 1.1 | 247 |
| Weepecket Island, south of | - | 41° 30.4' | 70° 44.3' | - | - | 0.8 | 069 | - | - | 0.6 | 255 |
| Quamquisset Harbor entrance | 41° 32.4' | 70° 39.8' | Current Weak and Variable | ||||||||
| West Falmouth Harbor entrance | 41° 36.5' | 70° 39.3' | Current Weak and Variable | ||||||||
| Megansett Harbor | 41° 38.8' | 70° 39.2' | Current Weak and Variable | ||||||||
| Abiels Ledge, 0.4 mile south of | - | 41° 41.1' | 70° 40.4' | - | - | 0.8 | 035 | - | - | 1.0 | 216 |
| Dumpling Rocks, 0.2 mile southeast of | - | 41° 32.0' | 70° 55.1' | - | - | 0.8 | 066 | - | - | 1.1 | 190 |
| Apponaganset Bay | 41° 35' | 70° 57' | Current Weak and Variable | ||||||||
| Clarks Cove | 41° 36' | 70° 55' | Current Weak and Variable | ||||||||
| New Bedford Harbor and approaches | ° ' | ° ' | Current Weak and Variable | ||||||||
| West Island and Long Island, between | 41° 35.6' | 70° 50.4' | Current Weak and Variable | ||||||||
| West Island, 1 mile southeast of | 6 | 41° 34.0' | 70° 48.6' | - | - | 0.7 | 079 | - | - | 0.8 | 203 |
| Nasketucket Bay | 41° 37.1' | 70° 50.2' | Current Weak and Variable | ||||||||
| Mattapoisett Harbor | 41° 38' | 70° 47' | Current Weak and Variable | ||||||||
| Sippican Harbor | 41° 41' | 70° 44' | Current Weak and Variable | ||||||||
| Wareham River, off Long Beach Point | - | 41° 44.0' | 70° 43.0' | - | - | 0.6 | 022 | - | - | 0.6 | 202 |
| Wareham River, off Barneys Point | - | 41° 44.7' | 70° 42.4' | - | - | 0.7 | 010 | - | - | 0.6 | 185 |
| Onset Bay, south of Onset Island | 41° 43.9' | 70° 38.7' | Current Weak and Variable | ||||||||
| Onset Bay, south of Wickets Island | 41° 44.1' | 70° 39.3' | Current Weak and Variable | ||||||||
CAPE COD CANAL
Average Speed and Direction
| Min Before Flood |
Flood | Min Before Ebb |
Ebb | ||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| Station | Depth | Latitude | Longitude | Spd | Dir | Spd | Dir | Spd | Dir | Ebb | Dir |
| CAPE COD CANAL, railroad bridge | - | 41° 44.5' | 70° 36.8' | - | - | 4.0 | 070 | - | - | 4.5 | 250 |
| Bourne Highway bridge | - | 41° 45' | 70° 35' | - | - | 3.3 | 065 | - | - | 4.0 | 245 |
| Bournedale | - | 41° 46' | 70° 34' | - | - | 3.4 | 030 | - | - | 3.6 | 210 |
| Sagamore Bridge | - | 41° 46' | 70° 33' | - | - | 2.8 | 095 | - | - | 2.5 | 275 |
| Cape Cod Canal, east end | 15 | 41° 46.5' | 70° 30.0' | - | - | 2.4 | 065 | - | - | 2.6 | 245 |