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Christopher D. Nolan

We've all experienced a bad day on the water thanks to our planet's atmosphere.  Whether that is being rained out on a holiday, or getting ourselves in a dangerous situation in a thunderstorm, the weather is a sailor or boaters main concern on the water. 

In this course, taught by a professional mariner, you will learn about the principles of marine weather and the resources available to you as you make sailing and boating decisions on the water. 

Read more

We've all experienced a bad day on the water thanks to our planet's atmosphere.  Whether that is being rained out on a holiday, or getting ourselves in a dangerous situation in a thunderstorm, the weather is a sailor or boaters main concern on the water. 

In this course, taught by a professional mariner, you will learn about the principles of marine weather and the resources available to you as you make sailing and boating decisions on the water. 

First you will learn about weather fundamentals such as fronts, air masses, and hazards such as thunderstorms and tropical storms.  Next you will learn about resources available both on the internet and at sea for weather data such as weather faxes and forecast models.  Finally, you will practice weather routing with a few common sailing situations such as a daysail or a hypothetical trip from North Carolina to St. Thomas to help you make more informed choices regarding the weather. 

This course is helpful for beginners or experienced sailors and boaters alike.  It is all about being informed and being safe on the water. Happy navigating.

Your instructor is Captain Chris Nolan, an experienced military and civilian ship captain who has sailed in the Atlantic, Pacific, Mediterranean, and Polar regions. 

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What's inside

Learning objective

In this course, you will learn about weather fundamentals, weather tools, and weather decisions for sailors and boaters.

Syllabus

Introduction

In this course you will learn about weather fundamentals, weather resources, and weather decision making for sailors and boaters. 

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In this lesson, we discuss how weather occurs when areas are heated at different rates.

In this lesson, we discuss the sea breeze, why it forms, and how it can be used for boating. 

In this lesson, we discuss the land breeze, which is opposite of the sea breeze.

In this lesson we synthesize what we know so far about low pressure systems.

In this lesson we synthesize what we know so far about high pressure systems.

In this lesson, we discuss the Coriolis Effect and how it causes winds to deflect from their apparent path.

In this lesson, we put it all together.  We discuss how differential heating and coriolis lead to the global wind patters on Earth. 

In this lesson we discuss weather systems such as high and low pressure systems. 

In this lesson we discuss how isobars can be used to determine the wind direction and speed. 

In this lesson we discuss warm, cold, and occluded fronts.

In this lesson we discuss operating near squalls and thunderstorms, and what to expect nearby.

In this lesson we discuss common cloud types and how you can use them to determine approaching weather systems.

In this lesson we discuss how fog and humidity are related and why they impact us as humans and boaters.

In this lesson we discuss the importance of staying away from tropical revolving storms and how to determine the safer side of the storm if you are nearby.

There are a wide variety of websites which take unfiltered weather data such as the GFS model and translate it into visually appealing weather data.  These are helpful when trying to get a sense of the wind and weather near you.  However it is important to realize that not all websites have filtered data that has been analyzed by a human meteorologist.  Attached to the lesson are a few of many websites that you can refer to. 

In this lesson we discuss the clouds you might see as a cold front approaches your position.

In this lesson we are sailing from Florida to North Carolina and must determine what weather we will encounter using the surface forecasts.

In this scenario we are sailing on the west coast of the USA and must use the surface forecasts to estimate what weather we will experience. 

In this scenario we are in the middle of the Atlantic, and use the surface analysis along with the 500mb forecast chart to determine the track of a low pressure system.

In this scenario we use windy.com to showcase the effect of land and islands on local wind fields. 

In this scenario we discuss the formation of a low pressure system near the Aleutian Islands in Alaska.

In this scenario we discuss resources one might use to determine when to depart North Carolina for the Caribbean in November. 

Traffic lights

Read about what's good
what should give you pause
and possible dealbreakers
Taught by an experienced ship captain with experience in diverse regions, which lends credibility and practical insights to the course material
Covers weather routing with common sailing situations, which provides practical application of weather knowledge for real-world scenarios
Explores weather fundamentals such as fronts and air masses, which builds a strong foundation for understanding marine weather patterns
Examines resources like weather faxes and forecast models, which equips learners with tools for gathering weather data at sea
Includes lessons using windy.com to showcase the effect of land and islands on local wind fields, which may require learners to have internet access

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Reviews summary

Weather essentials for sailors and boaters

According to students, this course offers a largely positive learning experience focused on marine weather. Learners particularly appreciate the instructor's expertise and the clear explanation of fundamental weather concepts relevant to boating. Many find the section on available weather resources highly useful for practical application on the water. The practical examples and case studies are frequently cited as helpful for understanding how to apply learned principles to real-world sailing and boating decisions. While the course is widely considered excellent for beginners and those needing a solid foundation, a few more experienced individuals suggest it might be less in-depth for advanced meteorological understanding.
Excellent starting point for new boaters.
"As a beginner sailor, this course was perfect for getting the basics down."
"Highly recommended for anyone new to boating and weather."
"Provides a great foundation without being overwhelming."
"Felt much more confident about weather after taking this as a beginner."
Includes helpful real-world scenarios.
"The case studies and routing examples made the theory relatable and applicable."
"Applying the concepts to actual sailing situations was the best part."
"Learned how to make better weather decisions using the practical examples."
"Showed how to actually use the forecasts and tools discussed."
Section on weather tools and websites is valuable.
"The list and explanation of websites and tools like Weather Fax were incredibly helpful."
"Gave me concrete resources to use for planning trips."
"Knowing where to find reliable weather data was a key takeaway."
"Found the section on available resources at sea particularly useful."
Basic weather principles explained clearly.
"The explanations of pressure systems, fronts, and wind were easy to grasp."
"I finally understand how basic weather works thanks to this course."
"Clear and concise overview of essential meteorological concepts for boaters."
"Helped solidify my understanding of weather patterns."
Taught by a highly experienced mariner.
"The instructor's real-world experience really shines through. You can tell he knows his stuff."
"Capt. Nolan is clearly very knowledgeable and shares practical insights."
"Hearing from a professional mariner makes the content very credible and engaging."
"It's great learning weather from someone with so much time on the water."
May be too basic for experienced users.
"Good review of the basics, but I was hoping for a bit more depth on complex forecasting."
"Might be a bit too simple for experienced cruisers or professional mariners."
"Wish some topics had been explored more deeply."
"Covered the fundamentals well, but didn't go far into advanced meteorology."

Activities

Be better prepared before your course. Deepen your understanding during and after it. Supplement your coursework and achieve mastery of the topics covered in Weather for Sailors and Boaters with these activities:
Review Basic Meteorology
Strengthen your understanding of fundamental meteorological concepts before diving into marine-specific weather phenomena. This will provide a solid foundation for understanding the course material.
Browse courses on Meteorology
Show steps
  • Review basic atmospheric principles.
  • Study different types of weather systems.
  • Familiarize yourself with common weather terminology.
Read 'Weather for Dummies'
Gain a broad understanding of weather concepts before focusing on the specifics of marine weather. This book will help you grasp the fundamentals.
View Weather For Dummies on Amazon
Show steps
  • Read the chapters on atmospheric pressure and wind.
  • Study the sections on clouds and precipitation.
  • Review the information on weather forecasting.
Compile a List of Marine Weather Resources
Create a personalized collection of online and offline resources for accessing marine weather information. This will provide you with a handy reference guide for future voyages.
Show steps
  • Research websites offering marine weather forecasts.
  • Identify relevant VHF radio channels for weather broadcasts.
  • Gather information on weather fax services.
  • Organize the resources into a document or spreadsheet.
Four other activities
Expand to see all activities and additional details
Show all seven activities
Practice Identifying Cloud Types
Sharpen your ability to recognize different cloud formations and predict approaching weather systems. This will improve your situational awareness on the water.
Show steps
  • Study images of various cloud types.
  • Observe the sky and identify clouds in real-time.
  • Cross-reference your observations with weather forecasts.
Document a Local Weather Pattern
Deepen your understanding of local weather patterns by documenting and analyzing weather conditions in your area over a period of time. This will help you develop a more intuitive sense of how weather works.
Show steps
  • Record daily weather observations, including temperature, wind speed, and cloud cover.
  • Analyze the data to identify recurring weather patterns.
  • Create a report summarizing your findings.
Plan a Hypothetical Voyage
Apply your knowledge of marine weather to plan a hypothetical voyage, taking into account weather forecasts and potential hazards. This will test your ability to make informed decisions based on weather information.
Show steps
  • Choose a destination and route.
  • Gather weather forecasts for the duration of the voyage.
  • Identify potential weather hazards along the route.
  • Develop a plan for avoiding or mitigating those hazards.
Read 'Heavy Weather Sailing'
Learn how to handle your boat in severe weather conditions. This book provides practical advice and techniques for navigating storms.
Show steps
  • Read the chapters on storm tactics and survival techniques.
  • Study the sections on boat preparation and equipment.
  • Review the information on weather routing in heavy weather.

Career center

Learners who complete Weather for Sailors and Boaters will develop knowledge and skills that may be useful to these careers:
Professional Mariner
A professional mariner operates commercial vessels, and this course provides important training in understanding weather that may affect their work. The role requires comprehensive knowledge of marine weather, including its impact on navigation, safety, and ship handling. This course covers weather fundamentals, resources for weather data, and practical weather decision-making in various scenarios, all of which are critical for a professional mariner. The skills regarding weather routing from this course are directly applicable to the needs of a professional mariner. This course was taught by a professional mariner, and as such contains relevant training for that job.
Sailboat Captain
A sailboat captain is responsible for the safe and efficient operation of a sailing vessel, and this course helps build a foundation in marine weather awareness, a key component of sailing. This role demands a thorough understanding of weather patterns, forecasting, and the ability to make informed decisions based on available weather data. This course, with its focus on weather fundamentals, resources, and practical weather routing, helps a sailboat captain to better assess and respond to weather conditions. A sailboat captain will use the skills of this course to ensure the safety of the boat and crew in all types of weather. This course is especially helpful in the planning and execution of long distance sailing trips.
Yacht Delivery Captain
A yacht delivery captain is responsible for safely transporting yachts from one location to another, and this course helps build a foundation of knowledge in marine weather, which is important for this role. The role requires extensive knowledge of weather patterns and the ability to make decisions while at sea. This course, with its focus on weather fundamentals, resources for weather data, and practical weather routing, directly addresses the needs of a yacht delivery captain. Using the skills taught in this course, the yacht delivery captain can plan the voyage more effectively and better respond to changing conditions while at sea. This course may be useful to anyone in this role looking to increase their skill.
Charter Boat Operator
A charter boat operator runs a vessel for commercial purposes, often carrying passengers for recreational activities. This course helps build the awareness of marine weather, a paramount skill to ensure passenger safety and comfort. This role is centered around the weather because it impacts the experience of the customers and the safety of the vessel and those on board. This course specifically helps with knowledge of weather fundamentals, use of weather resources, and practical weather decision making for various sailing scenarios. A charter boat operator can use this knowledge to make better decisions when planning charter routes, ensuring the safest and most enjoyable experience for everyone on board the boat. The course may be useful for those seeking to operate their boat more safely.
Sailing Instructor
A sailing instructor teaches sailing skills to individuals of various experience levels, and this course helps build a strong foundation of weather knowledge for teaching. A large part of sailing is about understanding the weather and making decisions based upon it. This course, with its focus on weather fundamentals, resources, and practical scenarios will empower the instructor to better teach sailing skills and safety practices. Understanding the weather and how it relates to the art of sailing is an important part of the job, and this course may be useful in improving the instructor's skills in this area.
Marine Meteorologist
A marine meteorologist specializes in forecasting weather conditions at sea, and this course helps build a foundation in marine weather principles, a critical skill for a marine meteorologist. This role involves analyzing weather data, creating forecasts, and communicating information to maritime interests. With training in weather fundamentals like fronts, air masses, and storms, coupled with knowledge of resources such as weather faxes and forecast models, this course provides an excellent basis for the work of a marine meteorologist. The course's focus on practical weather routing scenarios further enhances the forecasting and analytical skills needed in this role. This course may be useful for someone in this role who wishes to develop a more practical understanding of weather at sea.
Coast Guard Officer
A coast guard officer is responsible for maritime safety, security, and environmental protection, and this course will help build their awareness of marine weather, an important part of their duties. This role involves responding to emergencies, enforcing regulations, and conducting search and rescue operations, often under challenging weather conditions. This course, which teaches weather fundamentals and the use of weather resources, may help a Coast Guard officer in making informed decisions regarding operations and risk assessment. Knowledge of weather routing scenarios, as taught in the course may also help in search and rescue operations, especially in cases of inclement weather.
Search and Rescue Coordinator
A search and rescue coordinator plans and manages search and rescue operations, and this course helps build a foundation in weather impacts on marine search area. This role requires a deep understanding of weather patterns, forecasting, and the ability to make informed decisions under pressure. This course, especially with its focus on weather fundamentals and resources, can help inform search patterns and decisionmaking. The practical weather routing scenarios included in the course may be helpful in better understanding the impact of wind and currents on search planning. This course may be useful to a search and rescue coordinator.
Oceanographic Technician
An oceanographic technician collects and analyzes oceanographic data, often including meteorological information, and this course may be useful for this role. This role requires a foundational understanding of weather systems and resources used for forecasting. The course's focus on weather fundamentals, such as understanding fronts and storms, as well as the practical use of weather data from various sources, may help an oceanographic technician make better decisions about data collection and analysis. Though the course is not directly focused on the ocean, the focus on weather systems and forecasting may translate to a deeper understanding of weather impacts on ocean data, which would be valuable to an oceanographic technician.
Marine Surveyor
A marine surveyor inspects and assesses the condition of vessels, and this course helps build a foundation of knowledge about weather effects on boats. Part of this role involves understanding how weather conditions can impact damages or structural integrity of vessels. The course's focus on weather fundamentals and the use of weather resources may help a marine surveyor understand the possible impacts of weather events on the boats they inspect. By understanding weather fundamentals, a marine surveyor can better assess damage and determine if the boat is still seaworthy. This course may be helpful for anyone in this role.
Dockmaster
A dockmaster is responsible for managing a marina or harbor, and this course will help build a foundation of knowledge in marine weather. A dockmaster should be aware of weather conditions that may affect boaters in the marina. This course will help the dockmaster better understand weather systems and resources used for forecasting. While not directly involved in sailing, the course's focus on weather fundamentals, resources, and practical decision-making can help the dockmaster provide better service to the boaters in the marina. This course may be useful to a dockmaster who wants to improve their knowledge of weather.
Environmental Consultant
An environmental consultant advises on the environmental impacts of human activity, and this course may be useful for a consultant working on coastal or marine projects. While not directly focused on environmental science, this course's training on weather systems and the impact of storms would help an environmental consultant who is working on a marine or coastal project to better understand the impact of weather on those projects. This course emphasizes weather fundamentals and resources, providing context for environmental assessments in a marine setting. Because of the course focus on weather, it may be helpful for those working on marine or coastal projects.
Offshore Wind Technician
An offshore wind technician installs, maintains, and repairs wind turbines at sea, and this course may be useful for gaining a better understanding of marine weather. This role requires an awareness of weather conditions, as they directly impact operations and safety at sea. This course, with its focus on weather fundamentals and weather resources, may help an offshore wind technician make better decisions regarding maintenance and work schedules. Although not directly focused on wind turbines, the course provides a good basis for understanding weather impacts on marine operations. This course may be useful for anyone in this role.
Marine Insurance Underwriter
A marine insurance underwriter assesses risk and determines insurance coverage for vessels, and this course may be useful by offering them a better understanding of marine weather. They must evaluate potential weather-related risks to vessels and determine appropriate coverage. This course, covering weather fundamentals, resources, and practical decision-making, may help provide insights into the impact of weather on vessels. A deeper understanding of weather patterns and their implications can help in the risk assessment process. While not directly focused on underwriting, the course's content could enhance knowledge of weather's role in marine claims.
Naval Architect
A naval architect designs and engineers marine vessels, and this course may be useful for a naval architect to better understand how weather affects boat design. While this role is primarily focused on the design of vessels, a naval architect benefits from a strong understanding of weather systems. This course may provide those working in the field of naval architecture with better insight into the weather conditions that their vessels will encounter and design more effective ships based on these conditions. Especially useful is the course's focus on various weather systems and how the weather reacts in various scenarios. This course may be useful to improve the skills of a naval architect.

Reading list

We've selected two books that we think will supplement your learning. Use these to develop background knowledge, enrich your coursework, and gain a deeper understanding of the topics covered in Weather for Sailors and Boaters.
Classic guide to handling boats in severe weather conditions. It provides practical advice and techniques for navigating storms and other hazardous weather situations. While the course covers weather fundamentals and resources, this book offers invaluable insights into how to react when things get rough, making it a crucial resource for any sailor or boater.
Provides a broad overview of weather phenomena, making it an excellent resource for beginners. It covers basic concepts in an accessible manner, helping to build a solid foundation for understanding more complex marine weather patterns. While not specifically focused on marine weather, it offers valuable background knowledge.

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