National Data Buoy Center NWS Marine Forecast (2024)

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Coastal Waters Forecast
National Weather Service New Orleans LA
456 AM CDT Fri Jul 12 2024

Pascagoula to Atchafalaya River out to 60 NM

Seas are provided as a range of the average height of the highest1/3 of the waves...along with the occasional height of the averagehighest 10 percent of the waves.

GMZ500-GMZ501-122215
456 AM CDT Fri Jul 12 2024

SYNOPSIS FOR PASCAGOULA TO ATCHAFALAYA RIVER OUT 60 NM

Surface high pressure will be in the vicinity of the northern Gulf ofMexico for the forecast period. Light generally southerly winds inthe outer waters and varying near shore depending on exactly itslocation with respect to the coast. Convection and thunderstormsbringing higher, variable direction winds in their vicinity.

GMZ530-122215
Lake Pontchartrain and Lake Maurepas
456 AM CDT Fri Jul 12 2024

TODAY
Northwest winds around 5 knots, becoming south thisafternoon. Waves 1 foot or less. A slight chance of showers andthunderstorms late this morning. A chance of showers andthunderstorms this afternoon.

TONIGHT
Southwest winds around 5 knots. Waves 1 foot or less. Achance of showers and thunderstorms in the evening.

SATURDAY
West winds around 5 knots, becoming south in theafternoon. Waves 1 foot or less. Showers and thunderstorms likely inthe afternoon.

SATURDAY NIGHT
Southwest winds around 5 knots. Waves 1 foot orless.

SUNDAY
Northwest winds around 5 knots, becoming southwest in theafternoon. Waves 1 foot or less. A slight chance of showers andthunderstorms in the morning, then showers and thunderstorms likelyin the afternoon.

SUNDAY NIGHT
Southwest winds around 5 knots. Waves 1 foot orless.

MONDAY
Northwest winds around 5 knots, becoming southwest in theafternoon. Waves 1 foot or less. A chance of showers andthunderstorms in the morning, then showers and thunderstorms likelyin the afternoon.

MONDAY NIGHT
Southwest winds around 5 knots. Waves 1 foot orless.

TUESDAY
West winds around 5 knots, becoming south in theafternoon. Waves 1 foot or less. A slight chance of showers andthunderstorms in the morning, then a chance of showers andthunderstorms in the afternoon.

TUESDAY NIGHT
Southwest winds around 5 knots. Waves 1 foot orless. A slight chance of showers and thunderstorms after midnight.

Winds and waves higher in and near thunderstorms.

GMZ534-122215
Lake Borgne
456 AM CDT Fri Jul 12 2024

TODAY
Northwest winds around 5 knots, becoming south around5 knots this afternoon. Waves 1 foot or less. A slight chance ofshowers and thunderstorms early this morning, then a chance ofshowers and thunderstorms late this morning and afternoon.

TONIGHT
Southwest winds around 5 knots. Waves 1 foot or less. Achance of showers and thunderstorms in the evening.

SATURDAY
Northwest winds around 5 knots, becoming south around5 knots in the afternoon. Waves 1 foot or less. A slight chance ofshowers and thunderstorms in the morning, then showers andthunderstorms likely in the afternoon.

SATURDAY NIGHT
Southwest winds 5 to 10 knots, becoming west aftermidnight. Waves 1 foot or less.

SUNDAY
Northwest winds 5 to 10 knots, becoming southwest in theafternoon. Waves 1 foot or less. A chance of showers andthunderstorms in the morning, then showers and thunderstorms likelyin the afternoon.

SUNDAY NIGHT
Southwest winds around 5 knots. Waves 1 foot orless. A slight chance of showers and thunderstorms.

MONDAY
Northwest winds around 5 knots, becoming southwest around5 knots in the afternoon. Waves 1 foot or less. A chance of showersand thunderstorms in the morning, then showers and thunderstormslikely in the afternoon.

MONDAY NIGHT
Southwest winds around 5 knots. Waves 1 foot orless. A slight chance of showers and thunderstorms after midnight.

TUESDAY
West winds around 5 knots, becoming south in theafternoon. Waves 1 foot or less. A chance of showers andthunderstorms in the morning, then showers and thunderstorms likelyin the afternoon.

TUESDAY NIGHT
Southwest winds 5 to 10 knots. Waves 1 foot orless. A slight chance of showers and thunderstorms after midnight.

Winds and waves higher in and near thunderstorms.

GMZ532-122215
Mississippi Sound
456 AM CDT Fri Jul 12 2024

TODAY
Northwest winds around 5 knots, becoming south thisafternoon. Waves 1 foot or less. A slight chance of showers andthunderstorms this morning. A chance of showers and thunderstormsearly this afternoon, then a slight chance of showers andthunderstorms late.

TONIGHT
Southwest winds 5 to 10 knots. Waves around 2 feet in theevening, then 1 foot or less. A slight chance of showers andthunderstorms.

SATURDAY
West winds around 5 knots, becoming south in theafternoon. Waves 1 foot or less, then around 2 feet in theafternoon. A slight chance of showers and thunderstorms in themorning, then a chance of showers and thunderstorms in theafternoon.

SATURDAY NIGHT
Southwest winds 5 to 10 knots, becoming west aftermidnight. Waves around 2 feet in the evening, then 1 foot or less. Aslight chance of showers and thunderstorms.

SUNDAY
Northwest winds 5 to 10 knots, becoming southwest in theafternoon. Waves 1 foot or less. A chance of showers andthunderstorms in the morning, then showers and thunderstorms likelyin the afternoon.

SUNDAY NIGHT
Southwest winds 5 to 10 knots. Waves 1 foot or less.A slight chance of showers and thunderstorms in the evening, then achance of showers and thunderstorms after midnight.

MONDAY
West winds around 5 knots, becoming south in theafternoon. Waves 1 foot or less. A chance of showers andthunderstorms in the morning, then showers and thunderstorms likelyin the afternoon.

MONDAY NIGHT
Southwest winds 5 to 10 knots. Waves 1 foot or less.A chance of showers and thunderstorms after midnight.

TUESDAY
West winds around 5 knots, becoming south in theafternoon. Waves 1 foot or less, then around 2 feet in theafternoon. A chance of showers and thunderstorms.

TUESDAY NIGHT
Southwest winds 5 to 10 knots. Waves around 2 feet.A chance of showers and thunderstorms after midnight.

Winds and waves higher in and near thunderstorms.

GMZ536-538-122215
Chandeleur Sound-Breton Sound
456 AM CDT Fri Jul 12 2024

TODAY
Northwest winds around 5 knots, becoming south around5 knots this afternoon. Waves 1 foot or less. A chance of showersand thunderstorms until late afternoon, then showers andthunderstorms likely late.

TONIGHT
Southwest winds 5 to 10 knots. Waves 1 foot or less. Achance of showers and thunderstorms, mainly in the evening.

SATURDAY
Northwest winds around 5 knots, becoming south in theafternoon. Waves 1 foot or less. A chance of showers andthunderstorms.

SATURDAY NIGHT
Southwest winds 5 to 10 knots, becoming west aftermidnight. Waves 1 foot or less. A slight chance of showers andthunderstorms.

SUNDAY
Northwest winds 5 to 10 knots, becoming south in theafternoon. Waves 1 foot or less. A chance of thunderstorms. Showerslikely, mainly in the morning.

SUNDAY NIGHT
Southwest winds 5 to 10 knots. Waves 1 foot or less.A chance of showers and thunderstorms after midnight.

MONDAY
West winds 5 to 10 knots, becoming south in the afternoon.Waves 1 foot or less. Showers and thunderstorms likely, mainly inthe morning.

MONDAY NIGHT
Southwest winds 5 to 10 knots. Waves 1 foot or less.A chance of showers and thunderstorms after midnight.

TUESDAY
West winds 5 to 10 knots, becoming south in theafternoon. Waves 1 foot or less. Showers and thunderstorms likely,mainly in the morning.

TUESDAY NIGHT
Southwest winds 5 to 10 knots. Waves 1 foot orless. A chance of showers and thunderstorms after midnight.

Winds and waves higher in and near thunderstorms.

GMZ555-557-122215
Coastal Waters from Boothville LA to Southwest Pass of theMississippi River out 20 nm
Coastal waters from Pascagoula Mississippi to Stake Island out 20 NM
456 AM CDT Fri Jul 12 2024

TODAY
Northwest winds around 5 knots, becoming south late. Seas1 foot or less. Wave Detail: Southeast 1 foot at 6 seconds. A chanceof showers and thunderstorms.

TONIGHT
Southwest winds 5 to 10 knots. Seas 1 foot or less. WaveDetail: Southwest 1 foot at 2 seconds and south 1 foot at 5 seconds.A chance of showers and thunderstorms, mainly in the evening.

SATURDAY
Northwest winds around 5 knots, becoming south around5 knots in the afternoon. Seas 1 foot or less. Wave Detail: West1 foot at 2 seconds and south 1 foot at 5 seconds. A chance ofshowers and thunderstorms, mainly in the morning.

SATURDAY NIGHT
Southwest winds 5 to 10 knots, becoming west aftermidnight. Seas 1 foot or less. Wave Detail: West 1 foot at 2 secondsand south 1 foot at 6 seconds. A slight chance of showers andthunderstorms after midnight.

SUNDAY
Northwest winds 5 to 10 knots, becoming southwest in theafternoon. Seas 1 foot or less. Wave Detail: Northwest 1 foot at2 seconds and south 1 foot at 6 seconds. A chance of thunderstorms.Showers likely, mainly in the morning.

SUNDAY NIGHT
Southwest winds around 5 knots. Seas 1 foot or less.Wave Detail: South 1 foot at 6 seconds. A chance of showers andthunderstorms after midnight.

MONDAY
West winds around 5 knots, becoming southwest around5 knots in the afternoon. Seas 1 foot or less. Wave Detail: West1 foot at 2 seconds and south 1 foot at 6 seconds. A chance ofshowers and thunderstorms, mainly in the morning.

MONDAY NIGHT
Southwest winds around 5 knots. Seas 1 foot or less.Wave Detail: Southwest 1 foot at 2 seconds and south 1 foot at6 seconds. A chance of showers and thunderstorms after midnight.

TUESDAY
West winds around 5 knots, becoming south around 5 knotsin the afternoon. Seas 1 foot or less. Wave Detail: South 1 foot at6 seconds. Showers likely with a chance of thunderstorms in themorning, then a slight chance of showers and thunderstorms in theafternoon.

TUESDAY NIGHT
Southwest winds 5 to 10 knots. Seas 1 foot or less,then around 2 feet after midnight. Wave Detail: Southeast 1 foot at6 seconds, becoming south 1 foot at 6 seconds. A chance of showersand thunderstorms after midnight.

Winds and seas higher in and near thunderstorms.

GMZ550-552-122215
Coastal Waters from Port Fourchon LA to Lower Atchafalaya River LAout 20 nm
Coastal waters from the Southwest Pass of the Mississippi River toPort Fourchon Louisiana out 20 NM
456 AM CDT Fri Jul 12 2024

TODAY
Southwest winds around 5 knots, becoming northeast latethis morning, then becoming southeast this afternoon. Seas 1 foot orless. Wave Detail: South 1 foot at 5 seconds. A chance of showersand thunderstorms.

TONIGHT
South winds around 5 knots. Seas 1 foot or less. WaveDetail: South 1 foot at 5 seconds. A chance of showers andthunderstorms, mainly in the evening.

SATURDAY
Northwest winds around 5 knots, becoming southeast inthe afternoon. Seas 1 foot or less. Wave Detail: South 1 foot at5 seconds. A chance of showers and thunderstorms.

SATURDAY NIGHT
Southwest winds around 5 knots. Seas 1 foot orless. Wave Detail: Southwest 1 foot at 3 seconds and southeast1 foot at 6 seconds. A slight chance of showers and thunderstormsafter midnight.

SUNDAY
Northwest winds around 5 knots, becoming west around5 knots in the afternoon. Seas 1 foot or less. Wave Detail: West1 foot at 2 seconds and southeast 1 foot at 6 seconds. A chance ofthunderstorms. Showers likely, mainly in the morning.

SUNDAY NIGHT
Southwest winds around 5 knots. Seas 1 foot or less.Wave Detail: West 1 foot at 2 seconds and southeast 1 foot at5 seconds. A chance of showers with a slight chance of thunderstormsafter midnight.

MONDAY
Northwest winds around 5 knots, becoming southwest in theafternoon. Seas 1 foot or less. Wave Detail: West 1 foot at2 seconds and southeast 1 foot at 6 seconds. A chance ofthunderstorms. Showers likely, mainly in the morning.

MONDAY NIGHT
Southwest winds around 5 knots. Seas 1 foot or less.Wave Detail: Southwest 1 foot at 3 seconds and southeast 1 foot at6 seconds. A chance of showers and thunderstorms after midnight.

TUESDAY
West winds around 5 knots, becoming south in theafternoon. Seas 1 foot or less. Wave Detail: Southwest 1 foot at2 seconds and southeast 1 foot at 6 seconds. A chance ofthunderstorms. Showers likely, mainly in the morning.

TUESDAY NIGHT
South winds 5 to 10 knots. Seas 1 foot or less.Wave Detail: Southeast 1 foot at 6 seconds. A chance of showers andthunderstorms after midnight.

Winds and seas higher in and near thunderstorms.

GMZ575-577-122215
Coastal Waters from Stake Island LA to Southwest Pass of theMississippi River from 20 to 60 nm
Coastal waters from Pascagoula Mississippi to Stake Island Louisianaout 20 to 60 NM
456 AM CDT Fri Jul 12 2024

TODAY
West winds around 5 knots, becoming northeast around5 knots late this morning and early afternoon, then becoming southlate. Seas around 2 feet this morning, then 1 foot or less. WaveDetail: South 1 foot at 6 seconds, becoming southeast 1 foot at5 seconds. A chance of showers and thunderstorms.

TONIGHT
Southwest winds around 5 knots. Seas 1 foot or less. WaveDetail: South 1 foot at 6 seconds. A chance of showers andthunderstorms, mainly in the evening.

SATURDAY
Northwest winds around 5 knots, becoming southeastaround 5 knots in the afternoon. Seas 1 foot or less. Wave Detail:West 1 foot at 2 seconds and south 1 foot at 5 seconds. A chance ofshowers and thunderstorms.

SATURDAY NIGHT
Southwest winds around 5 knots. Seas 1 foot orless. Wave Detail: South 1 foot at 6 seconds. A slight chance ofshowers and thunderstorms after midnight.

SUNDAY
Northwest winds around 5 knots. Seas 1 foot or less. WaveDetail: Northwest 1 foot at 2 seconds and southeast 1 foot at5 seconds. Showers likely with a chance of thunderstorms in themorning, then a slight chance of showers and thunderstorms in theafternoon.

SUNDAY NIGHT
Southwest winds around 5 knots. Seas 1 foot or less.Wave Detail: Northwest 1 foot at 3 seconds and south 1 foot at6 seconds. A chance of showers with a slight chance of thunderstormsafter midnight.

MONDAY
Northwest winds around 5 knots, becoming southwest around5 knots in the afternoon. Seas 1 foot or less. Wave Detail: West1 foot at 2 seconds and south 1 foot at 6 seconds. A chance ofshowers and thunderstorms, mainly in the morning.

MONDAY NIGHT
South winds around 5 knots. Seas 1 foot or less.Wave Detail: South 1 foot at 6 seconds. A chance of showers andthunderstorms after midnight.

TUESDAY
West winds around 5 knots, becoming southeast in theafternoon. Seas 1 foot or less. Wave Detail: Southeast 1 foot at6 seconds. Showers likely with a chance of thunderstorms in themorning, then a slight chance of showers and thunderstorms in theafternoon.

TUESDAY NIGHT
South winds around 5 knots. Seas 1 foot or less.Wave Detail: Southeast 1 foot at 6 seconds. A chance of showers andthunderstorms after midnight.

Winds and seas higher in and near thunderstorms.

GMZ570-572-122215
Coastal waters from Port Fourchon Louisiana to Lower AtchafalayaRiver LA from 20 to 60 NM
Coastal waters from Southwest Pass of the Mississippi River to PortFourchon Louisiana from 20 to 60 NM
456 AM CDT Fri Jul 12 2024

TODAY
South winds around 5 knots, becoming east late this morningand afternoon. Seas 1 foot or less. Wave Detail: South 1 foot at6 seconds. A chance of showers and thunderstorms.

TONIGHT
South winds around 5 knots. Seas 1 foot or less. WaveDetail: South 1 foot at 5 seconds. A chance of showers andthunderstorms, mainly in the evening.

SATURDAY
South winds around 5 knots. Seas 1 foot or less. WaveDetail: South 1 foot at 5 seconds. A chance of showers andthunderstorms.

SATURDAY NIGHT
Southwest winds around 5 knots. Seas 1 foot orless. Wave Detail: Southeast 1 foot at 6 seconds. A slight chance ofshowers and thunderstorms after midnight.

SUNDAY
North winds around 5 knots. Seas 1 foot or less. WaveDetail: Northwest 1 foot at 2 seconds and southeast 1 foot at6 seconds. A chance of thunderstorms. Showers likely, mainly in themorning.

SUNDAY NIGHT
Southwest winds around 5 knots. Seas 1 foot or less.Wave Detail: West 1 foot at 2 seconds and southeast 1 foot at6 seconds. A slight chance of showers and thunderstorms aftermidnight.

MONDAY
Northwest winds around 5 knots, becoming east around5 knots in the afternoon. Seas 1 foot or less. Wave Detail: West1 foot at 2 seconds and southeast 1 foot at 6 seconds. A chance ofthunderstorms. Showers likely, mainly in the morning.

MONDAY NIGHT
South winds around 5 knots. Seas 1 foot or less.Wave Detail: Southeast 1 foot at 6 seconds. A chance of showers witha slight chance of thunderstorms after midnight.

TUESDAY
Southwest winds around 5 knots, becoming southeast in theafternoon. Seas 1 foot or less. Wave Detail: Southeast 1 foot at6 seconds. A chance of thunderstorms. Showers likely, mainly in themorning.

TUESDAY NIGHT
South winds 5 to 10 knots. Seas 1 foot or less.Wave Detail: Southeast 1 foot at 6 seconds. A chance of showers andthunderstorms after midnight.

Winds and seas higher in and near thunderstorms.

National Data Buoy Center NWS Marine Forecast (2024)

FAQs

What is the National Data Buoy Center? ›

The National Data Buoy Center (NDBC) is a part of the National Oceanic and Atmospheric Administration's (NOAA) National Weather Service (NWS). NDBC designs, develops, operates, and maintains a network of data collecting buoys and coastal stations.

How are NOAA buoys anchored? ›

Even the direction of wave propagation can be measured on many of NOAA's buoys. The buoys can face rough weather and are anchored using anything from chains in shallow waters to heavy-duty, polypropylene rope in deeper waters. The buoys are serviced every two years to try to keep up with corrosion.

What is significant wave height in Noaa Buoy? ›

Significant Wave Height is the average height (meters) of the highest one-third of the waves during a 20 minute sampling period. Swell height is the vertical distance (meters) between any swell crest and the succeeding swell wave trough.

Where are ocean buoys located? ›

Most of the buoys are located off of the shores of the United States and provide data for the NOAA Marine Environmental Buoy Database. The C-MAN stations are located on piers, offshore towers, lighthouses, and beaches.

What is the National data Center? ›

It is the mission of the NDC to furnish national Chapter 13 case information to parties-in-interest (and other appropriate persons) via a single, secured Internet site while protecting the legitimate privacy interest of debtors.

Is data from NOAA free? ›

The NOAA datasets made available through NODD are free for all users to access with no use restrictions and do not require any registration to access.

Are buoys chained down? ›

Weather buoys range in diameter from 1.5–12 metres (5–40 ft). Those that are placed in shallow waters are smaller in size and moored using only chains, while those in deeper waters use a combination of chains, nylon, and buoyant polypropylene.

How many buoys does NOAA have? ›

The network includes moored ocean buoys, fixed coastal stations and mobile observing platforms. NOAA's 200 moored buoys operate in a harsh environment, subjected to powerful ocean currents, fluctuating strong winds, surging waves, sea salt, the sun's ultraviolet rays, cold temperatures and even vandalism.

What keeps buoys from floating away? ›

In order for the buoys (and your boat) to stay in one place, a complicated and robust anchor system lies below. There are three types of anchors commonly used in the Florida Keys to secure the buoys to the seafloor: pin anchors, u-bolt anchors, and Manta Ray® anchors.

What wave height is considered rough? ›

Wave explanations
DescriptionHeight (metres)Effect
Moderate1.25 - 2.5Sea becoming furrowed
Rough2.5 - 4Sea deeply furrowed
Very rough4-6Sea much disturbed with rollers having steep fronts
High6-9Sea much disturbed with rollers having steep fronts (damage to foreshore)
6 more rows

How big is a 7 meter wave? ›

The average wave height of the highest 10% of all waves will be 22 ft. (7 m). A 5% chance of encountering a single wave higher than 35 ft. (11 m) among every 200 waves that pass in about 30 minutes.

How tall can waves get in the middle of the ocean? ›

But the ocean can produce some extremely large waves. The largest wind wave reliably measured at sea occurred in the Pacific Ocean in 1935, and was measured by the navy tanker the USS Ramapo. Its crew measured a wave of 34 m or about 112 ft high!

How far are buoys from shore? ›

Buoys should be no more than 200 feet from shore. They should be securely anchored so they will not drift in moderate-to-heavy winds. And they should preferably be made of material which, if a boat accidentally bumps the buoy, will not cause harm.

What do red and green buoys mean in the ocean? ›

Red and Green buoys and lights indicate primary channels. If the green horizontal band is on top, the primary channel is the right (starboard). If the red band is on the top, the primary channel is to the left (port) side. This marker indicates the primary channel is on the starboard.

What side of the boat is the buoy? ›

Likewise, green buoys are kept to the port (left) side (see chart below). Conversely, when proceeding toward the sea or leaving port, red buoys are kept to port side and green buoys to the starboard side. Red buoys are always even numbered, and green buoys are odd numbered.

What kind of data does NOAA collect? ›

NOAA satellites observe the Earth from space, constantly scanning the planet to collect the most up-to-date data about the atmosphere, land, and oceans. This information is vital to our daily lives—and is in fact the basis for every weather forecast.

How many locations does NOAA have? ›

This is done through a collection of national and regional centers, 13 river forecast centers (RFCs), and more than 120 local weather forecast offices (WFOs). They are charged with issuing weather and river forecasts, advisories, watches, and warnings on a daily basis.

What are the national oceanographic data centers? ›

NODC maintains and updates a national ocean archive with environmental data acquired from domestic and foreign activities, and produces products and research from these data, to help monitor global environmental changes.

Where is the National climate data Center? ›

NOAA's National Climatic Data Center (NCDC), located in Asheville, North Carolina, maintains the world's largest climate data archive and provides climatological services and data to every sector of the United States economy and to users worldwide.

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