Decoding the New York Harbor Marine Forecast Like a Pro

Understanding the New York Harbor marine forecast is essential for safe and efficient navigation. The National Weather Service (NWS), a crucial entity, publishes this vital information regularly. These forecasts rely on sophisticated weather models to predict conditions in the harbor. These models incorporate data from various sources, including buoys strategically placed throughout the area, providing real-time measurements. Mastering the new york harbor marine forecast, therefore, allows boaters and maritime professionals to make informed decisions, promoting safety and optimizing operations within this bustling waterway, managed, in part, by the Port Authority.

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Imagine this: You're piloting a sailboat through the Verrazano Narrows, the iconic gateway to New York Harbor. The sun is shining, the city skyline is breathtaking, and the wind is at your back.
Suddenly, a dense fog bank rolls in, reducing visibility to near zero. The wind shifts abruptly, and a strong current begins to push you towards a busy shipping channel.
This is precisely where understanding the New York Harbor Marine Forecast becomes paramount. It's not just about convenience; it's about safety, responsible navigation, and making informed decisions that can prevent a potentially disastrous situation.
The Indispensable Marine Forecast
The New York Harbor Marine Forecast is your essential guide to understanding the dynamic and often unpredictable weather conditions that prevail in this bustling waterway.
It provides critical information about wind speed and direction, wave height, visibility, and potential hazards, allowing you to anticipate changes and react accordingly.
Without a clear understanding of the forecast, even experienced mariners can find themselves in precarious situations, facing challenges that could have been easily avoided with proper preparation.
Who Should Read This Guide?
This guide is designed for anyone who operates a vessel in New York Harbor, including:
- Mariners: Professional captains, tugboat operators, and ferry crews who navigate the harbor daily.
- Recreational Boaters: Weekend sailors, kayakers, power boaters, and anglers who enjoy the harbor's recreational opportunities.
- Anyone Operating in New York Harbor: Including those involved in shipping, tourism, and other maritime activities.
If you spend time on the water in and around New York City, this guide will equip you with the knowledge and skills you need to navigate safely and confidently.
What You Will Learn
In this guide, you will learn how to decipher the New York Harbor Marine Forecast, understand its key components, and apply that knowledge to make informed decisions about your boating activities.
We will cover:

- The roles of NOAA and the NWS in generating marine forecasts.
- How to interpret wind speed, wave height, tides, and visibility.
- How to recognize and respond to marine warnings and advisories.
- New York Harbor-specific weather patterns and challenges.
- How to access and utilize weather buoys and online resources.
- How to combine forecast information with real-time observations.
By the end of this guide, you will be well-equipped to navigate New York Harbor like a pro, ensuring your safety and the safety of others, and maximizing your enjoyment of this unique and vibrant waterway.
The information shared thus far provides a glimpse into the real-world importance of marine forecasts. But before diving deeper into specific forecast elements and their implications, it's crucial to understand the fundamental framework underpinning these vital resources. Let's explore the organizations and systems responsible for generating and disseminating the marine forecasts that keep boaters safe in New York Harbor.
The Foundation: NOAA, the NWS, and the Coastal Waters Forecast
Marine forecasts don't appear out of thin air; they are the product of sophisticated scientific observation, modeling, and analysis conducted by dedicated government agencies. The National Oceanic and Atmospheric Administration (NOAA) and its subsidiary, the National Weather Service (NWS), are the primary entities responsible for crafting and distributing these essential forecasts.
The National Weather Service: Forecasters on the Front Lines
The NWS serves as the operational backbone for weather forecasting in the United States. Its highly trained meteorologists analyze vast amounts of data collected from satellites, weather buoys, radar systems, and surface observations to develop detailed forecasts for various regions, including coastal waters.
The NWS employs advanced computer models to simulate atmospheric and oceanic conditions, allowing them to predict future weather patterns. They also collaborate with local partners, such as harbor masters and port authorities, to incorporate on-the-ground knowledge into their forecasts. These localized insights are incredibly valuable for accounting for micro-climates.
NOAA: Overseeing Oceanic and Atmospheric Understanding
NOAA provides the overarching scientific and administrative framework for the NWS. This agency's mission extends far beyond weather forecasting, encompassing research, conservation, and management of coastal and marine resources. NOAA's research efforts contribute to a deeper understanding of atmospheric and oceanic processes.
The insights from these research efforts consequently improve the accuracy and reliability of weather forecasts. NOAA's commitment to scientific advancement ensures that the NWS has access to the latest tools and knowledge for producing high-quality marine forecasts.
Accessing Information: Official Sources
Staying informed requires accessing the most current and authoritative sources of information. The official NWS website is an indispensable resource for mariners and recreational boaters alike.
Here, you'll find detailed forecasts, warnings, and advisories tailored to specific marine zones, including those encompassing New York Harbor.
Another reliable source is NOAA Weather Radio, a network of radio stations broadcasting continuous weather information directly from NWS offices. NOAA Weather Radio is invaluable for receiving real-time updates and alerts, especially when internet access is limited.
Coastal Waters Forecast: Your Guide to New York Harbor Conditions
The Coastal Waters Forecast (CWF) is a specific type of marine forecast issued by the NWS that focuses on conditions within a defined coastal area. For New York Harbor, the CWF provides detailed information about wind speed and direction, wave height, visibility, and potential hazards. The CWF is essential for planning a safe and enjoyable boating excursion, as it offers a comprehensive overview of expected weather conditions.
Pay close attention to the geographic zones covered by the CWF to ensure that you are receiving the most relevant information for your intended route. The CWF is typically updated several times a day, so it's essential to check the latest forecast before heading out on the water.
The information shared thus far provides a glimpse into the real-world importance of marine forecasts. But before diving deeper into specific forecast elements and their implications, it's crucial to understand the fundamental framework underpinning these vital resources. Let's explore the organizations and systems responsible for generating and disseminating the marine forecasts that keep boaters safe in New York Harbor.
Key Elements: Understanding the Marine Forecast Language
Marine forecasts aren't just random numbers and vague descriptions; they are carefully constructed statements using specific terminology. Grasping the language of these forecasts is paramount for any mariner venturing into New York Harbor. This section will dissect the essential components, revealing how these elements are measured, reported, and, most importantly, how they translate into real-world boating conditions.
Wind Speed and Wind Direction
Wind is arguably the most influential factor affecting boating conditions. Forecasts provide information on both wind speed and direction, usually reported in knots (nautical miles per hour) and degrees (e.g., "Winds SW 15-20 knots").
Measurement and Reporting
Wind speed is typically measured by anemometers placed at strategic locations, including weather buoys and coastal stations. Wind direction indicates where the wind is blowing from, not where it's blowing to. Therefore, a "north wind" blows from the north towards the south.
Impact on Boating Conditions
Strong winds can create choppy seas, reduce maneuverability, and increase the risk of capsizing, especially for smaller vessels.
Understanding wind direction is equally important. Onshore winds can make it difficult to return to shore, while offshore winds can push boats further out to sea. Changes in wind direction can also signal approaching weather systems.
Wave Height
Wave height is another critical parameter, indicating the size of the waves you can expect to encounter. Marine forecasts typically report significant wave height, which represents the average height of the highest one-third of waves.
Understanding Wave Height Terminology
It's important to differentiate between significant wave height and maximum wave height. Individual waves can be significantly larger than the reported significant wave height.
Influence of Wind Fetch and Duration
Wave height is influenced by wind fetch (the distance over which the wind blows) and wind duration (how long the wind blows).
Longer fetch and duration result in larger, more developed waves. Even moderate winds can create substantial waves if they've been blowing steadily over a long distance.
Tides
Tidal cycles exert a powerful influence on New York Harbor, impacting navigation, currents, and water depth.
Importance of Understanding Tidal Cycles
Understanding high and low tide times, as well as the tidal range (the difference between high and low tide), is essential for safe boating.
Impact on Navigation
Tides affect water depth, which is particularly important in shallow areas.
Strong tidal currents can also make navigation challenging, especially in narrow channels or near bridge pilings. Consult tide charts and current predictions to plan your voyage accordingly.
Visibility
Visibility refers to the distance one can see horizontally. Reduced visibility can significantly increase the risk of collisions and groundings.
Factors Affecting Visibility
Fog is a common culprit, particularly in the spring and summer months. Rain, haze, and smoke can also reduce visibility.
Critical Role in Safe Navigation
In conditions of reduced visibility, it's crucial to reduce speed, use navigation equipment (radar, GPS), and sound fog signals. Maintaining a sharp lookout and being extra cautious is paramount.
The nuances of wind speed, wave height, and visibility paint a picture of current conditions, but forecasts also include alerts that signal impending danger. These warnings and advisories are not mere suggestions; they are critical indicators that demand respect and immediate action. Understanding these alerts is paramount to ensuring your safety and the safety of your crew when navigating the waters of New York Harbor.
Marine Warnings and Advisories: Knowing When to Stay Ashore
Marine warnings and advisories serve as a vital communication system, alerting boaters to potentially hazardous weather conditions. These are issued by the National Weather Service (NWS) and are based on specific meteorological criteria. Ignoring these warnings can lead to perilous situations, turning a pleasant outing into a life-threatening event. Prudent mariners treat these advisories with the utmost seriousness.
Small Craft Advisory
A Small Craft Advisory is issued when conditions are expected to be hazardous to small boats. While not as severe as a Gale or Storm Warning, it still indicates conditions that require caution and preparedness.
Criteria for Issuance
The specific criteria for a Small Craft Advisory can vary slightly depending on the region, but generally, it is issued when sustained winds of 20 to 33 knots (23-38 mph) and/or wave heights of 4 feet or greater are expected.
Recommended Actions for Boaters
When a Small Craft Advisory is in effect, boaters should carefully evaluate their vessel's capabilities and their own experience. Consider the following:
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Postpone your trip if you are not comfortable navigating in the expected conditions.
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If you decide to go out, ensure your boat is properly equipped with safety gear, including life jackets, a VHF radio, and signaling devices.
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File a float plan with a friend or family member, detailing your route and expected return time.
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Pay close attention to the weather and sea conditions, and be prepared to turn back if conditions worsen.
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Avoid exposed areas and seek shelter in protected harbors or bays.
Gale Warning
A Gale Warning signifies a more serious threat than a Small Craft Advisory. It indicates that gale-force winds are expected, posing a significant danger to all vessels, especially smaller ones.
Criteria for Issuance
A Gale Warning is typically issued when sustained winds of 34 to 47 knots (39-54 mph) are expected.
The Seriousness of a Gale Warning in New York Harbor
New York Harbor, while offering some protected areas, can become treacherous during a gale. The combination of strong winds and choppy seas can make navigation extremely difficult, especially in the narrow channels and high-traffic zones. A gale warning should always be taken seriously and avoidance is advised.
Storm Warning
A Storm Warning represents the highest level of alert for non-tropical systems. It indicates that storm-force winds are expected, posing a severe threat to life and property.
Criteria for Issuance
A Storm Warning is issued when sustained winds of 48 knots (55 mph) or greater are expected.
Actions to Take During a Storm Warning
When a Storm Warning is issued, immediate action is required.
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All vessels should seek safe harbor immediately.
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Ensure your boat is properly secured and protected from the elements.
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If you are caught at sea, send out a distress call and follow the instructions of the Coast Guard.
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Stay informed by monitoring weather broadcasts and official updates.
Marine Zones and New York Harbor
New York Harbor and its adjacent waters are divided into specific marine zones, each with its own forecast and warnings. Familiarizing yourself with these zones is crucial for understanding the specific conditions expected in your area of operation. These zones can be found on the NWS website.
When assessing the forecast, pay close attention to the zone that encompasses your intended route, as conditions can vary significantly across different zones. Always cross-reference warnings with your specific location within New York Harbor to ascertain the true impacts the weather will have on your boating experience.
Being cognizant of maritime warnings and advisories and understanding their implications is not simply a suggestion, but a critical safety measure. Knowing the criteria, understanding the potential dangers, and taking appropriate action can make the difference between a safe and enjoyable boating experience and a maritime emergency.
Marine warnings and advisories serve as essential guides, but the weather doesn't always follow a neat script. New York Harbor, in particular, presents a unique set of conditions that demand a deeper understanding than general forecasts alone can provide. Navigating these waters safely requires an awareness of the local weather patterns and challenges specific to this bustling maritime environment.
New York Harbor Specifics: Local Weather Patterns and Challenges
New York Harbor is far from a homogenous body of water; its diverse geography and surrounding urban landscape create a complex interplay of weather phenomena. Understanding these nuances is crucial for making informed decisions and ensuring safe passage.
Geography and Microclimates
The harbor's varied topography, including the convergence of the Hudson, East, and Raritan Rivers, contributes to the formation of localized weather patterns, or microclimates.
For example, the narrower channels can experience increased wind speeds due to the Venturi effect, where wind is forced through a constricted space.
Conversely, sheltered areas might see significantly reduced wind, creating pockets of calm that can be deceptive if you're relying solely on a broader regional forecast.
The presence of islands, like Governors Island and Liberty Island, also disrupts wind flow and creates localized wave patterns that can differ significantly from the open waters of the harbor.
The Urban Heat Island Effect
New York City's dense urban environment generates what's known as the urban heat island effect.
The concentration of concrete, asphalt, and buildings absorbs and retains heat, leading to higher temperatures compared to surrounding rural areas.
This temperature difference can create localized breezes as cooler air from the surrounding waters is drawn towards the warmer city.
During the summer months, this effect can intensify afternoon thunderstorms, leading to sudden downpours and gusty winds that can catch boaters off guard.
Therefore, it's essential to be aware of this phenomenon and monitor weather conditions closely, especially during peak heating hours.
Sandy Hook's Influence
Sandy Hook, a long, sandy peninsula, plays a significant role in shaping wind and wave patterns at the entrance to the harbor.
Its presence deflects winds and alters wave direction, creating complex sea states that can be challenging to navigate.
Winds blowing from the northeast can be particularly problematic, as they are funneled along the shoreline of Sandy Hook, creating increased wave heights and choppy conditions.
Conversely, Sandy Hook can provide some protection from southwesterly winds. Boaters should carefully consider the wind direction in relation to Sandy Hook's position when planning their route.
Navigating High-Traffic Areas
Beyond the weather itself, the sheer volume of vessel traffic within New York Harbor presents its own set of challenges.
Commercial ships, ferries, recreational boats, and even kayaks all share the same waterways, creating a complex and often congested environment.
Reduced visibility due to fog or heavy rain can compound these challenges, making it difficult to spot other vessels and maintain safe distances.
Navigating these high-traffic areas requires constant vigilance, adherence to the rules of the road, and effective communication with other vessels via VHF radio.
Furthermore, be mindful of the wakes generated by larger vessels, which can pose a hazard to smaller boats and those unfamiliar with navigating in such conditions.
Marine warnings and advisories serve as essential guides, but the weather doesn't always follow a neat script. New York Harbor, in particular, presents a unique set of conditions that demand a deeper understanding than general forecasts alone can provide. Navigating these waters safely requires an awareness of the local weather patterns and challenges specific to this bustling maritime environment.
Harnessing Technology: Weather Buoys, Apps, and Online Resources
While understanding forecast language is critical, access to real-time data and convenient tools can significantly enhance your situational awareness in New York Harbor. Technology offers invaluable resources for both pre-trip planning and on-the-water decision-making. Let's explore how to leverage these digital aids effectively.
Weather Buoys: Your Eyes on the Water
Weather buoys act as floating weather stations, providing continuous, real-time measurements of key environmental conditions. Several buoys are strategically positioned in and around New York Harbor, offering invaluable data points.
Accessing Buoy Data
The National Data Buoy Center (NDBC), a division of NOAA, is the primary source for buoy information. Their website (ndbc.noaa.gov) allows you to search for buoys by location. For New York Harbor, key buoys include those near Sandy Hook (station 44020) and Ambrose Light (station ALSN6).
Interpreting Buoy Data
Buoy reports typically include:
- Wind Speed and Direction: Essential for assessing current wind conditions.
- Wave Height and Period: Crucial for understanding sea state.
- Air and Water Temperature: Important for comfort and potential icing conditions.
- Atmospheric Pressure: Can indicate approaching weather systems.
Understanding these parameters allows you to compare real-time conditions with the forecast, providing a valuable check on accuracy. Significant discrepancies should raise a red flag and prompt a reassessment of your plans.
Verifying Forecast Accuracy
Buoy data serves as an independent confirmation of the marine forecast. Before setting out, check the latest buoy readings and compare them to the predicted conditions. Are the winds stronger than forecast? Is the wave height higher?
This cross-referencing can help you identify potential forecast errors or localized weather phenomena not captured in the broader forecast. Use this information to adjust your route, timing, or even decide to stay ashore.
Mobile Apps and Online Resources
A plethora of mobile apps and websites offer convenient access to marine forecasts, buoy data, and other valuable information.
Recommended Apps
- NOAA Weather: The official NOAA app provides access to forecasts, warnings, and radar imagery.
- Windy: A popular app offering detailed wind and wave forecasts, along with interactive maps.
- PredictWind: Known for its high-resolution wind forecasts and GRIB file downloads.
- iNavX/Aqua Map: These navigation apps can overlay weather data onto nautical charts, providing a comprehensive view of conditions.
Online Resources
- NOAA Marine Forecast Page: Provides text-based forecasts for coastal waters.
- PassageWeather: Visualizes wind and wave forecasts for trip planning.
- SailFlow: Offers detailed wind forecasts and reports from weather stations.
When selecting apps and resources, consider your specific needs and preferences. Some offer more detailed forecasts, while others excel at visualizing data.
It's beneficial to try a few different options to find the ones that best suit your navigation style and the type of boating you do in New York Harbor.
Marine warnings and advisories serve as essential guides, but the weather doesn't always follow a neat script. New York Harbor, in particular, presents a unique set of conditions that demand a deeper understanding than general forecasts alone can provide. Navigating these waters safely requires an awareness of the local weather patterns and challenges specific to this bustling maritime environment.
Harnessing technological tools gives you the ability to see what’s actually happening right now. But raw data alone is not enough. The true art of seamanship lies in synthesizing all available information to make informed decisions and prioritize safety on the water.
Putting it All Together: Making Informed Decisions for Safe Navigation
The marine forecast, buoy data, and weather apps are all valuable pieces of a larger puzzle. The key to safe navigation lies in your ability to assemble these pieces into a coherent picture and then, crucially, to act on what that picture reveals. This involves a dynamic process of integrating information, assessing risk, and adjusting plans as needed.
The Synergy of Forecasts and Real-Time Data
Relying solely on a forecast, even an accurate one, is like driving with your eyes fixed on the rearview mirror. Forecasts provide a prediction of future conditions, but real-time observations offer a snapshot of the present.
The most effective approach involves constantly comparing the forecast with current conditions reported by weather buoys and other sources.
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Validating the Forecast: Are the winds behaving as predicted? Is the wave height consistent with the forecast? Discrepancies between the forecast and reality should raise a flag, prompting you to pay closer attention to developing weather patterns.
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Identifying Trends: Real-time data can also reveal trends that the forecast may not capture. For example, a gradual increase in wind speed or a sudden shift in wind direction could indicate an approaching weather system.
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Local Effects: Remember that New York Harbor's unique geography can create localized weather effects that are not reflected in broader forecasts. Buoy data can help you identify these microclimates and adjust your navigation accordingly.
Know Your Limits: Vessel and Crew
Even with the most accurate forecast and real-time data, safe navigation depends on an honest assessment of your own capabilities and the limitations of your vessel and crew.
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Vessel Capabilities: Every boat has its limits. Consider the size, design, and seaworthiness of your vessel. What is the maximum wind speed and wave height that your boat can handle safely? Are all essential systems (engine, navigation equipment, communication devices) in good working order?
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Crew Experience: The experience and skill level of your crew are just as important as the capabilities of your boat. Are your crew members familiar with basic seamanship techniques? Are they comfortable handling the boat in challenging conditions?
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Personal Limitations: Be honest with yourself about your own abilities and limitations. Are you feeling tired or stressed? Are you prepared to handle an emergency situation? If you have any doubts, it's always best to err on the side of caution.
Making the Call: To Go or Not to Go?
The ultimate decision of whether to proceed with a voyage, alter course, or seek shelter rests with the captain. This decision should be based on a careful evaluation of all available information, including the forecast, real-time observations, vessel capabilities, and crew experience.
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Risk Assessment: Consider the potential consequences of encountering adverse weather conditions. What is the likelihood of damage to your vessel? What is the risk of injury to your crew?
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Alternative Plans: Always have a backup plan. Can you shorten your voyage? Can you alter your course to avoid the worst of the weather? Are there safe harbors or anchorages nearby where you can seek shelter?
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The Prudent Mariner: A prudent mariner is one who exercises caution, good judgment, and common sense. If you have any doubts about the safety of your voyage, it is always best to postpone or cancel your plans.
Safe Navigation Practices: Adapting to Conditions
Even after you've made the decision to proceed, it's important to remain vigilant and adapt your navigation practices to the prevailing weather conditions.
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Reduce Speed: In heavy seas or strong winds, reduce your speed to maintain control of your vessel and minimize the risk of damage.
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Adjust Course: Steer into the waves to avoid broaching or capsizing. Be aware of the effects of wind and current on your course, and make adjustments as needed.
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Secure Gear: Make sure all loose gear is properly stowed and secured. This will prevent it from being tossed around the boat and causing injury or damage.
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Monitor Conditions: Continuously monitor weather conditions and adjust your plans as needed. Don't hesitate to seek shelter if conditions deteriorate.
Ultimately, safe navigation in New York Harbor is a matter of informed decision-making, prudent seamanship, and respect for the power of the sea. By combining forecast information with real-time observations, assessing your own capabilities, and adapting your plans as needed, you can enjoy the beauty and excitement of the harbor while minimizing the risks.
Video: Decoding the New York Harbor Marine Forecast Like a Pro
FAQs: Decoding the New York Harbor Marine Forecast
This FAQ section addresses common questions regarding interpreting the New York Harbor marine forecast, helping you navigate the waters safely and confidently.
What is a "small craft advisory" and when is it issued for the New York Harbor?
A small craft advisory is issued when weather conditions, particularly winds and waves, could be hazardous to small boats. For the New York Harbor marine forecast, this typically means sustained winds of 25 to 38 knots and/or wave heights of 5 feet or greater. Heed these advisories!
Where can I reliably find the New York Harbor marine forecast?
The National Weather Service (NWS) is the primary source. Their website provides up-to-date forecasts, including graphical forecasts, for the New York Harbor and surrounding marine zones. Many weather apps also source their marine forecasts from the NWS.
What's the difference between "wind direction" and "seas"?
Wind direction indicates the direction from which the wind is blowing. "Seas" refer to the actual wave height, which may be influenced by fetch (the distance over which the wind blows) and can differ from just the wind-generated waves. Knowing both helps you understand the overall water conditions in the New York Harbor marine forecast.
How often is the New York Harbor marine forecast updated?
The NWS typically updates the New York Harbor marine forecast several times a day, especially when conditions are changing rapidly. Check frequently, particularly before heading out on the water, as conditions can change quickly.