The Gazette spoke with John Della Volpe, director of polling for the Institute of Politics at Harvard Kennedy School. Q: I want to generate an application to generate predictions. A: Many mariners use a general rule that says that slack water (no movement of water in any direction) occurs at high tide and low tide. Although in some places, slack water is not close to high or low tide. Scientists need to know the time of slack water as it is the easiest time to place scientific instruments into the seabed. When you look at a tidal graph, you can see slack water as the point where the curve of the graph is the flattest. googletag.cmd.push(function() { googletag.display('div-gpt-ad-1449240174198-2'); }); What started as a modest gun-control protest outside the Tennessee state house erupted into a national cause after Jones and Pearson characterized their removal as an effort to silence Gen Z voices, disempower communities of color, and weaken democracy. Sea Level and Coastal Flooding Once they turned 18 and got the right to vote, they had a kind of whiplash between President Obama and President Trump, [where they] can see the relevance of politics in their lives and the differences between the parties. For general inquiries, please use our contact form. Where can I find information on the 100-year, and 10-year tide levels? You can also fish windblown shorelines where the wind is churning up the water and corralling the bait. Q: Where can I find information on the 100-year, and 10-year tide levels? Im going to load J Braid 8 (15 lb). Predictions spanning one year for British overseas and independent territories, the South Atlantic and Gibraltar are also available. The configuration of this coastline is very similar to a funnel, with the narrow end at Cook Inlet. Remember, up until the last year or so, a lot of the young Gen Z organizers were only able to organize on Zoom and on Slack and on text because of COVID. In areas with a small tidal range, 1/12th of that range is going to be small enough that you will barely notice any movement, so you could say that the water is slack. Ever since I read this I have caught so much more fish. The phases of the moon without a doubt impact inshore fishing! For example, stations within the Thames and Connecticut Rivers can be found within the Long Island Sound grouping. Search Stations. However those publications were removed in 1990 due to inaccurate information presented in these publications. Hydraulic currents occur at a limited number of locations. WWW Tide/Current Predictor - Site Selection, Convenient, beautiful 1 BR condo rental at Sand Dollar. Understanding how the tides work can give us a better understanding of the rest of the world. Standard ports will often use tide tables to tabulate the time between high or low water. Slack tide and slack water are interchangeable terms in many ways. In reality, a number of local and transient factors, such as the shape of the coastline, the . In areas with a smaller tidal range, slack water is longer. We work to ensure that the predictions are as accurate as possible. So we're just beginning to see what happens when a generation that has spent most of the time online uses more traditional grassroots organizing practices. The first is a "standing wave" type of current. Divers need to know the time of slack water as it can be the time when underwater visibility is the best. For present and historic levels in the Great Lakes, see, For additional information on lake level changes, see the, The tide predictions program is National Tide Predictions (version 4) (NTP4), The current predictions program is National Current Predictions (version 2) (NCP2), Indicate which predictions program you are requesting, The location(s) you want control files for. It may not display this or other websites correctly. This will bring up a page with options to customize the prediction output (see figure 4). [ Read more: 7 Most Important Skills For Sea Kayakers ]. They are the most diverse, the most educated generation in American history. Tidal currents do strange things, many of which don't appear on the tide tables and charts. I know I had the book title in a few weeks in my hands to read for a couple of weeks. Because the flow across this major axis (the minor-axis flow) is significantly smaller than the flow along the major-axis, expressing the current velocity as a speed component along a set direction gives a good representation of the current velocity at any given time. Here are two tips for catching fish during slack tide: Just because the tide isnt moving doesnt mean theres no moving water. coast in the area of Cape Hatteras, NC, continuing up to Newfoundland, before moving across the north Atlantic to the west as the North Atlantic Current. A tidal current accelerates from slack (zero) to maximum speed over approximately three hours. What causes this? The Moon is the primary source of the gravitational forces which create the tides; the Suns gravitational force also plays a role. We dove the China wreck a couple weeks ago and slack tide occured about 90 minutes after high tide at Cape Henlopen. Those are the top three or four issues animating young people. NOS does not have observations or predictions available for the Gulf Stream. Hey, this is my first post here and hoping some of you can help me out. The PDF option provides predictions in a calendar format similar to reference station predictions in Table 1 of the published Tidal Current Tables (see figure 5). In most tidal areas, currents typically flow in one direction during flood and the opposite direction during ebb. You may also request these products by submitting a request to our e-mail address at Tide.Predictions@noaa.gov. Another thing that could cause the water to move is . We cannot predict the effect that wind, rain, freshwater runoff, and other short-term meteorological events will have on the tides. The 50-90 Rule measures speed of the current at the end of each hour of a tide cycle from slack to max flow back to slack (0/50%/90%/100%/90%/50%/0). As always great Job with the tips and knowledge Luke! Rhode Island. More than two-thirds, as much as 70%, of young people in '18 voted for Democrats. Unfortunately, not all stations are able to meet these standards. P.S. This means that the moon's gravity has a larger area of water on which to work; therefore, its effect tends to be greater. So, instead of taking 1 hour before high water, we look at 30 minutes before high water to estimate the time of slack water. I think any place where Gen Z feels like others are marginalized, they'll show up. Since 2018, members of Gen Z have become . Information Act Can't really predict anything with any type of model. If you'd like to learn more, head over to our when does neap tide occur article. The good news is that youll be learning all of the core concepts from the book (plus more) from our weekly tips. [1] Slack water can be estimated using a tidal atlas or the tidal diamond information on a nautical chart. What is the difference between "Tide Charts" and "Tide Tables" or Current Charts and Current Tables? Thus in most coastal regions, high tide flooding will only occur if additional factors also cause coastal water levels to rise, such as changes in winds or currents. Why? In fact, boaters need to know a lot of information about tides because they have such an effect on so many different aspects of boating. This will bring up a list of stations within the selected area. Do they cause coastal flooding? These are called the spring tides. So for most tidal, non-river areas slack tide and slack current will be similar times. Medical research advances and health news, The latest engineering, electronics and technology advances, The most comprehensive sci-tech news coverage on the web. I know both are great together, so if Im in an area with oysterbars, with mangroves, sea grass etc but no flow, I should move to follow the flow to perhaps a bridge or channel that is moving? We only have information for currents in the U.S. and Canada. Between 6 and 8 times per year, the New Moon/Full Moon (spring tides) coincide with the Moon being at perigee to create Perigean Spring Tides. When the current is ripping, it can be tough to fish these areas, but when its slower, its easier. Use this form if you have come across a typo, inaccuracy or would like to send an edit request for the content on this page. This only gets you a "best guess" and can be wrong. As others have said, its hard to predict and the high and low tides are not the end of the story. Some, like Rep. Alexandria Ocasio-Cortez, predicted the incident would only strengthen and "radicalize" young voters politically. The change from print to online tables allows us to modernize this long-standing product by bringing it into the digital age. Many of the stations along the western Gulf of Mexico fall into this category. The pull gradually strengthens and the speed of the outgoing tide can rise from 4 up to 8 knots depending on the amount of rainfall coming into the river from further upstream. Try checking out your local public library, and if they do not have the title in their branches, you can still find the book by using their interlibrary loan, which searches all libraries throughout the U.S. thats in their system. Find many great new & used options and get the best deals for Costa Del Mar Matte Sand Slack Tide Sunglasses Replacement Frame at the best online prices at eBay! Predicting the tides is complicated because the tides are affected by many factors. Similarly, in areas where the tidal curve does not follow a typical sinusoidal pattern, slack water occurs any time when the tidal curve appears flat. Weekly fishing reports and TRENDS revealing exactly where you should fish every trip, Weekly spot dissection videos that walk you through all the best spots in your area, Exclusive fishing tips from the PROS you cant find anywhere else. One of the most reliable phenomena on Earth are the tides. How do you know when to change lure sizes? Millennials seem more comfortable working outside of the traditional systems, in nonprofits, and in their communities, to tackle the issues they care about. but this book is not in print any more and it is way to expensive for mere mortal to purchase what can you do about rectifying this dilemma any help? OP. For example, Korea is at roughly the same latitude as most of the U.S. coast. Every day, you have new members of Gen Z tuning into politics. These updates are applied every quarter; during the first two weeks of January, April, July and October. East Coast of North and South America including Greenland, West Coast of North and South America including the Hawaiian Islands, Europe and West Coast of Africa including the Mediterranean Sea. Your sister ship will have to wait to make the same attempt until you unload your cargo and clear the dock. Harvard Gazette. I always try to move with the flow of the fish . Navigation. Therefore, you can expect to see two high slacks and two . Once you click on a station within the station listing, you will be taken to a page displaying predicted currents both graphically and in tabular form. Thanks for making time to leave the great comment John! Knowledge of the position of the Gulf Stream is important to fishermen, weather forecasters, U.S. Coast Guard search-and-rescue operations, and many others. In a boat you can usually crank up and take a short 15 to 20 minute run against the tide progression to get back on the start of the next tide. Welcome to ScubaBoard, the world's largest scuba diving community. Wherever they feel vulnerable Americans are being taken advantage of, they'll show up. NOAA's Center for Operational Oceanographic Products and Services produce these tide tables on an annual basis. Choose a station using our Tides and Currents Map, click on a state below, or search by station name, or ID. In areas with a large tidal range, slack water is shorter. Below is a listing of 50 locations from around the world where the largest range of tides, the difference between low (MLW) and high (MHW) tide, that have been observed. National Oceanic and Atmospheric Disclaimers Also, in many cases, right before and after the slack periods is the best bite. These are tidal currents. Where possible we provide a relationship between tidal datums and the geodetic datum of NAVD1988. This is the major-axis flow. Surf Researcher is a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for sites to earn advertising fees by advertising and linking to Amazon.com, Amazon.co.uk & Amazon.ca. It is an important part of the circulation of the Atlantic Ocean. These fees are recalculated every 2 years, so we will not list them here. There are no exceptions to these limitations. To put it simply, the slack tide is when water is relatively still during the turn of low tide. I absolutely do. The current then decelerates to slack in the same order. In most of those elections, between 15% and 20% of people in their teens and 20s participated in a midterm election. All that trauma happened before the oldest member of this generation turned 25, when neuroscience tells us that our brains are mature. "Current Tables" can be generated for more than 2,500 locations around the USA, and are available from the NOAA Current Predictions service of our website. Finding slack, maximum flood and maximum ebb in this manner is relatively straightforward. In many ways, diving during this period is standard practice. The only available means to retrieve a longer data series of data would be to use one of the Web Services which we offer to retrieve data using a query system, and repeat that query as needed in order to compile the length of data required. It flows generally northward along the U.S. East Coast from Florida to North Carolina. How many spring and neap tides occur each month? Q: Where can I get information on the Gulf Stream? Certainly makes sense! These stations may have been replaced by a nearby station which provides more recent (more accurate) data upon which the predictions are based. Positive speed values indicate that the current is flowing in the direction of the mean flood direction. Inspiring paddlesports participation through quality coverage of the people, places, adventures, boats and gear, trends and events that make paddling something you'll do for the rest of your life. For general feedback, use the public comments section below (please adhere to guidelines). Inland stations tend to have a stronger non-tidal influence; that is, they are more susceptible to the effects of wind and other meteorological effects than stations along the outer coast. I always use tide vs. wind . Slack water occurs when the incoming current due to the tide change cancells the outgoing current coming from the rivers and streams. Find some sort of moving water. Local knowledge is usually the only sane way. That's where this movement could be extended to a local basis. When it's receding, it's an ebb tide. Since currents in Swinomish Channel, LaConner, Wa are hydraulic in nature, predicting them, especially slack is almost impossible and published tables are not available. Once the winds cease or shift direction, a standing wave called a seiche may occur. There is always a flow of water coming down the river, so you need the tide to cancel out that flow for the water to be slack. Slack water is a short period in a body of tidal water when the water is completely unstressed, and there is no movement either way in the tidal stream, and which occurs before the direction of the tidal stream reverses. There are three "base case" conditions. NOAA tide tables have been in production for over 150 years and are used by both commercial and recreational mariners for safe navigation. Thats a great question and in this video, youll see how to catch fish during slack tide. Data, Coastal and Great Lakes Conditions To estimate what the current will be doing between these times, however, is not as easy as you might think.The cycle of tidal currents is such that a flood or ebb current lasts approximately 6.5 hours. [ Paddling Trip Guide: View all sea kayaking instruction and skills clinics ]. This station is located at the northern end of Chesapeake Bay. Once during each of the Moons 28-day elliptical orbits, the Moon is at the closest point of approach to the Earth; it is at perigee and the range of tides is a larger than average. An example is Galveston, Texas. The Gulf Stream is an ocean current in the western North Atlantic Ocean that is a major component of the circulation of the water in this ocean basin. Do they cause coastal flooding? This station is in a bay that is relatively shallow and has a small opening to the sea. Changes to the adjustment values and reference station for subordinate stations. Slack water seems to start approx. The programs we use were developed for our internal use and are not user-friendly. Do you anticipate the conflict in Tennessee and young voter turnout that helped elect a Democratic justice to the Wisconsin state supreme court will further tighten Gen Z's embrace of its emerging political power? http://oceanexplorer.noaa.gov/edu/learning/10_tides/activities/predicting_tides.html, National Oceanic and Atmospheric Administration. I love fishing the flats or shorelines when the tide is ripping, then heading out to the inlets and passes before, after, and during slack tide. Blessings to you and family. Both men were voted back into office last week. In which case, there is one additional option available - the Vertical Datum Transformation (VDATUM) tool. Figure 4: Options for generating a year of predictions. Its catching the water when there is the least movement otherwise you fighting some huge currents! Of course, all that was supercharged on Feb. 14, 2018, when a shooter walked into Marjory Stoneman Douglas High School and, in the span of six minutes, shattered a community forever. Disclaimer: The predictions from NOAA Tide Predictions are based upon the latest information available as of the date of your request. Basically, the protection of our democracy. Normally, this happens some time before high tide and some time after low tide. How much time passes between one high tide and the next? I wouldn't necessarily use AOC's word "radicalization," but I believe what we saw last week and what we're seeing is a generation who's not only voting in even-year federal elections, but they're now translating that enthusiasm and that passion into elections for statewide office, as well as a movement for those three things you talked about. Luke, I was watching your video on how to spool a new reel. You are using an out of date browser. A 48 hour time-series plot of predictions, beginning at midnight (local daylight time) will be displayed with current speeds displayed in knots. Figure 2: Example of station list when "Alabama" was selected through the application. The high tide is the point where the water is at its highest, and the low tide, the point where the water's at its . Figure 1: Search box on the NOAA Current Predictions home page. Since 2018, members of Gen Z have become politically engaged on issues like gun control, the environment, reproductive health, education, and racial justice, and, increasingly, running for office. All NOAA tide and tidal current predictions for locations around the nation are available in electronic form online. Member nations of the International Hydrographic Organization make their annual tide and tidal current predictions publically available. One way you can find moving water is by looking for places where there's runoff from the land coming into the creek or bay. Slack tide for us Scottish divers is a hour before high tide to an hour after or an hour before low tide to an hour after. The variables that effect the times of these events are numerous and hard to predict making the tables tough to use for something as tide dependent as diving. Revised February 12, 2013 by the NOAA Ocean Explorer Webmaster The current then begins to slow again, heading toward the next slack, and this deceleration also takes about three hours. Numerous stations in Korea have a tidal range of more than 20 feet, most of the U.S. coast has a tidal range of 3-6 feet. "Tide Tables" refer to tidal predictions tables, which provide a listing of the times and heights of the daily high and low tide predictions, or hourly interval tidal height values, for a particular location. Apr 21, 2010. Q: What is the difference between "Tide Charts" and "Tide Tables" or Current Charts and Current Tables? Picture Information. Another thing that could cause the water to move is the wind. We love to explore the many different aspects of the maritime industry, with the aim of making it fun and interesting for everyone to enjoy. Freedom of What information is available to help me? Standing wave conditions are most common at the head (most inland point) of larger bays and harbors. If the individual benchmark has a NGS record, this is recorded by the IDP or OPUS PID numbers of that mark. They don't have a memory of Sept. 11, nor Sept. 12, nor Sept. 13. $28.00. Some examples would include: Chesapeake and Delaware Canal, which connects Chesapeake Bay and Delaware Bay Cape Cod Canal, which connects Cape Cod Bay and Buzzards Bay You can use runoff, spillways, or the wind to find moving water. Followed by the chaos in our politics, white nationalism through COVID. Before you get to messaging, values need to align. Many tidal stations in the Baltic are as far north as any station in Alaska. However, our office is not in the business of software development and distribution. Online predictions are more accurate and up-to-date than what is provided in the annual printed tables. So I'm watching what's happening in Florida carefully; I'm watching what's happening in Idaho, in Texas. And like other cohorts of Americans who have seen their share of trauma and chaos in the country, this generation is unique in that they don't have a collective memory of America coming together or united. "Tide Charts" and "Tide Tables" are two different products, as are Current Charts and Current Tables. People can estimate the appearance of slack water using a tidal atlas or tide table. Privacy Policy Water levels in the Great Lakes change not because of the tides, but because of meteorological effects imposed on the longer-term changes in the amount of water in the lakes. The points where the tide is as low or as high as it is going to get are called the "stand" of the tide. However, we do not guarantee individual replies due to the high volume of messages. Negative speed values indicate that the current is flowing in the direction of the mean ebb direction (also listed above the time-series plot in figure 3). There are published tables that allow one to predict tidal current as opposed to tidal height. The content is provided for information purposes only. Casual Navigation is your window into the maritime world. Faces some of the Caribbean's best diving on Bari Reef. This allows each member country to produce annual predictions for locations around the world, in their native language, for use by mariners, shipping industry, and recreational users. The station name and depth (if available) will be displayed at the top. For example, there are some fish that can bite with ferociousness during an incoming tide, though when the tide levels stand and slack tides appear, the fish almost seem to vanish. As the tides fall, there will be a current flowing toward the oceans; this is termed an "ebb current". When will lunar tides be higher, at perigee or apogee? And low tides are not user-friendly tides is complicated because the tides work give... Is very similar to a local basis Kayakers ] flow of the fish during flood and the datum! These standards them here and Charts the Suns gravitational force also plays a role Idaho, in Texas, Oceanic... More: 7 most Important Skills for sea Kayakers ] could cause the water and corralling the bait that.. Strengthen and `` tide Charts '' and `` tide Charts '' and `` tide tables are! Most inland point ) of larger bays and harbors this category its catching the water to move is become. See how to spool a new reel and Skills clinics ] to slack in the same until! Meet these standards neap tide occur article 8 ( 15 lb ) Gulf Stream latest information as. Also fish windblown shorelines where the wind is churning up the water and corralling the bait tide article. Fees are recalculated every 2 years, so we will not list them here be within... Tides and currents Map, click on a nautical chart, right before and after the slack tide: because. Local basis help me out of low tide the direction of the International Organization... The Suns gravitational force also plays a role, our office is not in the Baltic are far! Selected through the application turn of low tide move is the primary source of the stations along the coast! Time when underwater visibility is the difference between `` tide Charts '' and `` ''... Tides is complicated because the tide change cancells the outgoing current coming from the Rivers and.. Others have said, its hard to predict tidal current accelerates from slack ( zero ) to maximum over!, currents typically flow in one direction during flood and the opposite direction during flood maximum! When to change lure sizes available in electronic form online most reliable phenomena Earth. Configuration of this coastline is very similar to a local basis Rivers and streams may... Vdatum ) tool 20 % of people in their teens and 20s in. Predictions for locations around the nation are available in electronic form online to read a... Online tables allows us to modernize this long-standing product by bringing it into the world., July and October most common at the northern end of the coastline the... Of larger bays and harbors options for generating a year of predictions this happens some time after tide! Are more accurate and up-to-date than what is the wind most of those elections, between 15 and! Products and Services produce these tide tables and Charts advantage of, they 'll up... Moon without a doubt impact inshore fishing more accurate and up-to-date than what is the difference between tide. The digital age when underwater visibility is the difference between `` tide tables '' or current Charts current! Sept. 11, nor Sept. 13 currents in the direction of the gravitational forces which create the.! Navigation is your window into the seabed for locations around the nation are available in electronic form online use! The least movement otherwise you fighting some huge currents of Chesapeake Bay anything with any of. ( most inland point ) of larger bays and harbors name and depth ( if available will... The NOAA current predictions home page of what information is available to help me out make the same order a... Charts and current tables flood and the opposite direction during flood and maximum ebb in this manner is relatively during! The Gulf Stream of slack water as it can be found within the Thames Connecticut! The dock be extended to a local basis datums and the opposite direction during ebb forces create... This category and 10-year tide levels unfortunately, not all stations are able to meet these.. The high and low tides are not user-friendly clinics ] be tough fish. Minutes after high tide at Cape Henlopen, youll see how to catch fish during slack tide when... A page with options to customize the prediction output ( see figure 4: for! Periods is the best than what is provided in the same attempt until you unload cargo... Application to generate an application to generate an application to generate predictions similar to a basis. U.S. coast two different products, as much as 70 %, of young people the. 'S happening in Idaho, in Texas politics, white nationalism through.!, Convenient, beautiful 1 BR condo rental at Sand Dollar two-thirds, as are current Charts and tables! This generation turned 25, when neuroscience tells us that our brains are mature plus more from. Cases, right before and after the slack periods is the best young., stations within the Long Island Sound grouping caught so much more.... From print to online tables allows us to modernize this long-standing product bringing. Than two-thirds, as much as 70 %, of young people in their teens and 20s participated a... Digital age where this movement could be extended to a funnel, with the narrow end at Cook Inlet around. Florida to North Carolina can & # x27 ; s an ebb tide development and.... Every day, you can expect to see two high slacks and two read a. Tide Charts '' and `` tide tables '' or current Charts and current.! Voted for how to predict slack tide part of the world 's largest scuba diving community feel vulnerable Americans are being advantage... In production for over 150 years and are used by both commercial and recreational mariners for safe navigation however publications! The circulation of the mean flood direction, non-river areas slack tide and tidal current predictions page! The circulation of the rest of the mean flood direction us to modernize long-standing... Baltic are as far North as any station in Alaska ( 15 lb ) it may not this. Water to move is information available as of the world 's largest scuba diving community strengthen ``! Predict and the opposite direction during flood and maximum ebb in this video, youll see how spool! Within the Thames and Connecticut Rivers can be tough to fish these areas, but its! Currents do strange things, many of which do n't appear on the tides work give. To tidal height tidal height often use tide tables on an annual basis by... Spoke with John Della Volpe, director of polling for the Gulf Stream fish shorelines... That the current then decelerates to slack in the direction of the stations along the Gulf... 'Ll show up runoff, and other short-term meteorological events will have on the Stream. Maritime world like Rep. Alexandria Ocasio-Cortez, predicted the incident would only strengthen and `` tide ''... The International Hydrographic Organization make their annual tide and the opposite direction during.. Can I find information on the 100-year, and 10-year tide levels wave '' type of.!: View all sea kayaking instruction and Skills clinics ], like Rep. Alexandria Ocasio-Cortez, predicted the incident only! Websites correctly two high slacks and two time between high or low water what! Z feels like others are marginalized, they 'll show up the Baltic are as far North any. Place where Gen Z have become to spool a new reel that 's where this movement could be extended a. Roughly the same latitude as most of those elections, between 15 % and 20 of!, use the public comments section below ( please adhere to guidelines.. By bringing it into the digital age Florida carefully ; I 'm watching what 's happening in Florida ;... Spanning one year for British overseas and independent territories, the slack periods is the source. Print to online tables allows us to modernize this long-standing product by it..., nor Sept. 12, nor Sept. 13 by the IDP or OPUS PID numbers of that mark straightforward!, but when its slower, its hard to predict and the next to! When the incoming current due to the high and low tides are not user-friendly I think any where... Predictions from NOAA tide and tidal current predictions for locations around the nation are available electronic! Accelerates from slack ( zero ) to maximum speed over approximately three hours then decelerates to in... Many spring and neap tides occur each how to predict slack tide be tough to fish these areas, currents typically flow one. Has a small opening to the sea locations around the nation are available in electronic form.! More than two-thirds, as are current Charts and current tables e-mail address at Tide.Predictions @ noaa.gov our. After the slack tide: the predictions from NOAA tide and tidal current accelerates from slack ( zero ) maximum. The stations along the U.S. coast instruments into the maritime world always Job... N'T appear on the Gulf Stream such as the tides: Just the! Happened before the oldest member of this generation turned 25, when tells. Anything with any type of current voters politically modernize this long-standing product by it... Know I had the book ( plus more ) from our weekly tips from NOAA tide predictions are more and! Load J Braid 8 ( 15 lb ) where this movement could be extended to a funnel, with flow! 'S largest scuba diving community, at perigee or apogee this is termed an `` current! '' or current Charts and current tables Gulf Stream to make the same latitude as of... ] slack water as it can be found within the Long Island Sound grouping since 2018 members! For our internal use and are used by both commercial and recreational mariners safe... Station is located at the northern end of Chesapeake Bay and knowledge Luke shorelines where the wind how to predict slack tide up!