Marine Forecasts

Storm Warning

37 zones

Tropical Storm Warning

4 zones

Gale Warning

65 zones

Tropical Storm Watch

5 zones

Gale Watch

6 zones

Small Craft Advisory

121 zones

Storm Warning 37 zones

• Boston Harbor
• Cape Cod Bay
• Nantucket Sound
• Vineyard Sound
• Buzzards Bay
• Rhode Island Sound
• Narragansett Bay
• Block Island Sound
• Coastal waters east of Ipswich Bay and the Stellwagen Bank National Marine Sanctuary
• Massachusetts Bay and Ipswich Bay
• Coastal waters from Provincetown MA to Chatham MA to Nantucket MA out 20 NM
• Coastal Waters extending out to 25 NM South of Marthas Vineyard and Nantucket
• Coastal Waters from Montauk NY to Marthas Vineyard extending out to 20 NM South of Block Island
• Ocean Waters from the Merrimack River to Plymouth from 40 to 60 NM
• Ocean Waters from Provincetown to Nantucket from 20 to 60 NM
• Ocean Waters from Marthas Vineyard to Nantucket from 25 to 60 NM
• Ocean Waters from Montauk NY to Marthas Vineyard from 25 to 60 NM
• Long Island Sound East of New Haven CT/Port Jefferson NY to the Mouth of the Connecticut River
• Long Island Sound East of the Mouth of the Connecticut River
• Long Island Sound West of New Haven CT/Port Jefferson NY
• Peconic and Gardiners Bays
• South Shore Bays from Jones Inlet through Shinnecock Bay
• Moriches Inlet NY to Montauk Point NY out 20 NM
• Fire Island Inlet NY to Moriches Inlet NY out 20 NM
• Sandy Hook NJ to Fire Island Inlet NY out 20 NM
• Waters from Moriches Inlet NY to Montauk Point NY from 20 to 60 NM
• Waters from Fire Island Inlet NY to Moriches Inlet NY from 20 to 60 NM
• Waters from Sandy Hook NJ to Fire Island Inlet NY out 20 to 60 NM
• Coastal waters from Sandy Hook to Manasquan Inlet NJ out 20 NM
• Coastal waters from Manasquan Inlet to Little Egg Inlet NJ out 20 NM
• Coastal waters from Little Egg Inlet to Great Egg Inlet NJ out 20 NM
• Coastal waters from Great Egg Inlet to Cape May NJ out 20 NM
• Waters from Sandy Hook NJ to Manasquan Inlet NJ from 20 to 40 NM
• Waters from Manasquan Inlet NJ to Little Egg Inlet NJ from 20 to 60 NM
• Waters from Little Egg Inlet NJ to Great Egg Inlet NJ from 20 to 60 NM
• Waters from Great Egg Inlet NJ to Cape May NJ from 20 to 60 NM
• Waters from Cape May NJ to Fenwick Island DE from 20 to 60 NM

Tropical Storm Warning 4 zones

• Alenuihaha Channel
• Big Island Windward Waters
• Big Island Leeward Waters
• Big Island Southeast Waters

Gale Warning 65 zones

• Coastal Waters from Eastport, ME to Schoodic Point, ME out 25 NM
• Coastal Waters from Schoodic Point, ME to Stonington, ME out 25 NM
• Waters from Eastport ME to Schoodic Point ME from 25 to 60 NM or the Hague Line
• Waters from Schoodic Point ME to Stonington ME from 25 to 60 NM
• Coastal Waters from Stonington, ME to Port Clyde, ME out 25 NM
• Coastal Waters from Port Clyde, ME to Cape Elizabeth, ME out 25 NM
• Coastal Waters from Cape Elizabeth, ME to Merrimack River, MA out 25 NM
• Waters from Stonington ME to Port Clyde ME from 25 to 60 NM
• Waters from Port Clyde ME to Cape Elizabeth ME from 25 to 60 NM
• Waters from Cape Elizabeth ME to Merrimack River MA from 25 to 60 NM
• New York Harbor
• Delaware Bay waters north of East Point NJ to Slaughter Beach DE
• Delaware Bay waters south of East Point NJ to Slaughter Beach DE
• Coastal waters from Cape May NJ to Cape Henlopen DE out 20 NM
• Coastal waters from Cape Henlopen to Fenwick Island DE out 20 NM
• Chesapeake Bay north of Pooles Island MD
• Chesapeake Bay from Pooles Island to Sandy Point MD
• Chesapeake Bay from Sandy Point to North Beach MD
• Chesapeake Bay from North Beach to Drum Point MD
• Chesapeake Bay from Drum Point MD to Smith Point VA
• Tidal Potomac from Cobb Island MD to Smith Point VA
• Chester River to Queenstown MD
• Eastern Bay
• Choptank River to Cambridge MD and the Little Choptank River
• Patuxent River to Broomes Island MD
• Tangier Sound and the inland waters surrounding Bloodsworth Island
• Chesapeake Bay from Smith Point to Windmill Point VA
• Chesapeake Bay from Windmill Point to New Point Comfort VA
• Chesapeake Bay from New Point Comfort to Little Creek VA
• Chesapeake Bay from Little Creek VA to Cape Henry VA including the Chesapeake Bay Bridge Tunnel
• Coastal waters from Fenwick Island DE to Chincoteague VA out 20 NM
• Coastal waters from Chincoteague to Parramore Island VA out 20 NM
• Coastal waters from Parramore Island to Cape Charles Light VA out 20 NM
• Coastal Waters from Cape Charles Light to Virginia-North Carolina border out 20 NM
• Coastal waters from NC VA border to Currituck Beach Light NC out 20 NM
• Waters from Fenwick Island DE to Chintoteague VA from 20 to 60 NM
• Waters from Chincoteague VA to Parramore Island VA from 20 to 60 NM
• Waters from Parramore Island VA to Cape Charles Light VA from 20 to 60 NM
• Waters from Cape Charles Light to Virginia - North Carolina Border from 20 to 60 NM
• Waters from NC VA border to Currituck Beach Light NC from 20 to 60 NM
• Bering Sea Offshore East of 171W
• Icy Cape to Cape Suckling out to 15 NM
• Cape Suckling to Gravel Point out to 15 NM
• Gravel Point to Cape Cleare out to 15 NM
• Castle Cape to Cape Tolstoi out to 15 NM
• Castle Cape to Cape Tolstoi from 15 to 100 NM
• Cape Tolstoi to Cape Sarichef out to 15 NM
• Cape Tolstoi to Unalga Pass from 15 to 100 NM
• Port Heiden to Nelson Lagoon out to 15 NM
• Port Heiden to Nelson Lagoon from 15 to 60 NM
• Nelson Lagoon to Cape Sarichef out to 15 NM
• Nelson Lagoon to Unalga Pass from 15 to 70 NM
• Unimak Pass
• Unalga Pass to Nikolski Bering Side out to 15 NM
• Unalaska Bay
• Unalga Pass to Nikolski Bering Side from 15 to 85 NM
• Unalga Pass to Nikolski Pacific Side out to 15 NM
• Unalga Pass to Nikolski Pacific Side from 15 to 85 NM
• Nikolski to Seguam Bering Side out to 15 NM
• Nikolski to Seguam Bering Side from 15 to 85 NM
• Nikolski to Seguam Pacfic Side out to 15 NM
• Nikolski to Seguam Pacific Side from 15 to 75 NM
• Seguam to Adak Bering Side out to 15 NM
• Seguam to Adak Bering Side from 15 to 85 NM
• Seguam to Adak Pacific Side out to 15 NM

Tropical Storm Watch 5 zones

• Kaiwi Channel
• Maui County Windward Waters
• Maui County Leeward Waters
• Maalaea Bay
• Pailolo Channel

Gale Watch 6 zones

• Kauai Northwest Waters
• Kauai Windward Waters
• Kauai Leeward Waters
• Kauai Channel
• Oahu Windward Waters
• Oahu Leeward Waters

Small Craft Advisory 121 zones

• Alligator River
• Pamlico Sound
• S of Currituck Beach Light NC to Oregon Inlet NC out to 20 NM
• S of Oregon Inlet NC to Cape Hatteras NC out to 20 NM
• S of Cape Hatteras NC to Ocracoke Inlet NC out to 20 NM
• S of Ocracoke Inlet NC to Cape Lookout NC out to 20 NM
• S of Cape Lookout NC to Surf City NC out to 20 NM
• Albemarle Sound
• Croatan and Roanoke Sounds
• Waters from Savannah GA to Altamaha Sound GA extending from 20 to 60 NM
• Waters from Altamaha Sound GA to Fernandina Beach FL from 20 to 60 NM
• Waters from Fernandina Beach to St. Augustine FL from 20 to 60 NM
• Waters from St. Augustine to Flagler Beach FL from 20 to 60 NM
• Sebastian Inlet to Jupiter Inlet 0-20 nm
• Flagler Beach to Volusia-Brevard County Line 20-60 nm
• Volusia-Brevard County Line to Sebastian Inlet 20-60 nm
• Sebastian Inlet to Jupiter Inlet 20-60 nm
• Coastal waters from Jupiter Inlet to Deerfield Beach FL out 20 NM
• Coastal waters from Deerfield Beach to Ocean Reef FL out 20 NM
• Waters from Jupiter Inlet to Deerfield Beach FL from 20 to 60 NM
• Waters from Deerfield Beach to Ocean Reef FL from 20 to 60 NM excluding the territorial waters of Bahamas
• Intra Coastal Waters from Schoodic Point, ME to Stonington, ME
• Penobscot Bay
• Casco Bay
• Tidal Potomac from Key Bridge to Indian Head MD
• Tidal Potomac from Indian Head to Cobb Island MD
• Patapsco River including Baltimore Harbor
• Currituck Sound
• Rappahannock River from Urbanna to Windmill Point
• York River
• James River from Jamestown to the James River Bridge
• James River from JRB to HRBT, Including the Elizabeth River
• Niagara River to Hamlin Beach NY
• Hamlin Beach to Sodus Bay NY
• Sodus Bay to Mexico Bay NY
• Mexico Bay NY to the St. Lawrence River
• Northern Lynn Canal
• Southern Lynn Canal
• Icy Strait
• Cross Sound
• Stephens Passage
• Southern Chatham Strait
• Clarence Strait
• Yakutat Bay
• Dixon Entrance to Cape Decision out to 15 NM
• Cape Decision to Cape Edgecumbe out to 15 NM
• Cape Edgecumbe to Cape Spencer out to 15 NM
• Cape Spencer to Cape Fairweather out to 15 NM
• Cape Fairweather to Icy Cape out to 15 NM
• Dixon Entrance to Cape Decision from 15 to 90 NM
• Cape Decision to Cape Edgecumbe from 15 to 80 NM
• Cape Edgecumbe to Cape Spencer from 15 to 80 NM
• Cape Spencer to Cape Fairweather from 15 to 85 NM
• Cape Fairweather to Icy Cape from 15 to 80 NM
• Icy Cape to Cape Suckling from 15 to 80 NM
• Cape Suckling to Cape Cleare from 15 to 75 NM
• Cape Cleare to Gore Point out to 15 NM
• Cape Cleare to Gore Point from 15 to 75 NM
• Northwest Prince William Sound
• Central and Eastern Prince William Sound
• Southwest Prince William Sound
• West of Barren Islands Including Kamishak Bay
• Barren Islands East
• Marmot Island to Sitkinak out to 15 NM
• Gore Point to Marmot Island from 15 to 80 NM
• Marmot Island To Sitkinak from 15 to 85 NM
• Shelikof Strait
• Sitkinak to Castle Cape out to 15 NM
• Sitkinak to Castle Cape from 15 to 100 NM
• Bristol Bay greater than 15 NM
• Bristol Bay from Port Heiden to Cape Chichagof out to 15 NM
• Bristol Bay from Cape Chichagof to Cape Pierce out to 15 NM
• Kuskokwim Delta and Etolin Strait out to 15 NM
• Kuskokwim Delta from 15 to 80 NM
• North and West of Nunivak Island
• Pribilof Islands Nearshore Waters
• Saint Matthew Island Waters
• Seguam to Adak Pacific Side from 15 to 75 NM
• Adak to Kiska Bering Side
• Adak to Kiska Pacific Side
• Kiska to Attu Bering Side
• Kiska to Attu Pacific Side
• Etolin Strait to Dall Point out to 15 NM
• Dall Point to Kwikpak Pass out to 15 NM
• Kwikpak Pass to Cape Stephens out to 15 NM
• Cape Stephens to Moses Point out to 15 NM
• Moses Point to Sledge Island out to 15 NM
• Sledge Island to Wales out to 15 NM
• Motherwood Point to Cape Krusenstern out to 10 NM
• South Side of Saint Lawrence Island out to 15 NM
• North Side of Saint Lawrence Island out to 15 NM
• Etolin Strait to Kwemeluk Pass from 15 to 90 NM
• Southwest of Saint Lawrence Island from 15 to 100 NM
• Norton Sound greater than 15 NM
• Kwemeluk Pass to Kwikpak Pass from 15 to 90 NM
• Sledge Island to Wales greater than 15 NM
• Kotzebue Sound greater than 10 NM
• Columbia River Bar
• Coastal waters from Cape Shoalwater WA to Cape Falcon OR out 10 nm
• Coastal waters from Cape Falcon to Cape Foulweather OR out 10 nm
• Coastal waters from Cape Foulweather to Florence OR out 10 nm
• Waters from Cape Shoalwater WA to Cape Falcon OR from 10 to 60 nm
• Waters from Cape Falcon to Cape Foulweather OR from 10 to 60 nm
• Waters from Cape Foulweather to Florence OR from 10 to 60 nm
• Coastal waters from Florence to Cape Blanco OR out 10 nm
• Coastal waters from Cape Blanco OR to Pt. St. George CA out 10 nm
• Waters from Florence to Cape Blanco OR from 10 to 60 nm
• Waters from Cape Blanco OR to Pt. St. George CA from 10 to 60 nm
• Coastal waters from Pt. St. George to Cape Mendocino CA out 10 nm
• Coastal waters from Cape Mendocino to Pt. Arena CA out 10 nm
• Waters from Pt. St. George to Cape Mendocino CA from 10 to 60 nm
• Waters from Cape Mendocino to Pt. Arena CA from 10 to 60 nm
• Coastal Waters from Point Pinos to Point Piedras Blancas California out to 10 nm
• Waters from Point Arena to Point Reyes 10-60 NM
• Waters from Point Reyes to Pigeon Point 10-60 NM
• Waters from Pigeon Point to Point Pinos 10-60 NM
• Waters from Point Pinos to Point Piedras Blancas 10-60 NM
• Point Piedras Blancas to Point Sal westward out to 10 NM
• Point Piedras Blancas to Point Sal from 10 to 60 NM
• Waters from Pt. Sal to Santa Cruz Island CA and westward 60 nm including San Miguel and Santa Rosa Islands
• Outer waters from Santa Cruz Island to San Clemente Island to 60 NM offshore including San Nicolas and Santa Barbara Islands

• Atlantic Coast153 zones · 109 under alerts
• Gulf of America106 zones
• Caribbean and Southwest Atlantic49 zones
• Puerto Rico and the U.S. Virgin Islands10 zones
• Great Lakes134 zones · 4 under alerts
• Pacific Coast68 zones · 24 under alerts
• Alaska124 zones · 86 under alerts
• Hawaii16 zones · 15 under alerts
• Guam and Micronesia11 zones
• American Samoa7 zones
• Mexico and Central America Pacific21 zones
• High seas5 areas

Small Craft Advisory

Winds or conditions hazardous to small boats. The thresholds are set by each NWS region: typically sustained winds or frequent gusts of 20 to 25 knots up to 33 knots, and seas of 5 to 7 feet or more.

Gale Warning

Sustained winds or frequent gusts of 34 to 47 knots, not from a tropical cyclone.

Storm Warning

Sustained winds or frequent gusts of 48 to 63 knots, not from a tropical cyclone.

Hurricane Force Wind Warning

Sustained winds or frequent gusts of 64 knots or more, not from a tropical cyclone.

Special Marine Warning

A thunderstorm or squall over the water with winds or gusts of 34 knots or more, hail of 3/4 inch or more, or a waterspout, for up to two hours.

Hazardous Seas Warning

Wave heights or steepness at or above the office’s warning threshold, when the wind alone does not warrant a warning.

Heavy Freezing Spray Warning

Spray freezing on a vessel at 2 cm (3/4 inch) an hour or more.

Tropical Storm and Hurricane Warnings

Tropical storm (34 to 63 knots) or hurricane (64 knots or more) conditions expected within 36 hours. Watches: possible within 48 hours.

Forecasts from the National Weather Service marine program. Zone outlines from the NWS marine and offshore zone boundaries. Warnings and advisories from the NWS API, read 22:07 UTC. All public domain, from the National Weather Service.