how to read wind direction on a weather map
If you suspect a hull-to-deck joint has failed, then being absolutely sure where the actual leak is occurring is of prime... Know your Navlights & Shapes International Regulations for Preventing Collisions at Sea (ColRegs) Anyone who is... Winches are drum shaped mechanical devices used to handle halyards, sheets and control lines. Passage planning and pilotage help skippers navigate safely from one port to another. % of people told us that this article helped them. Wind direction. Weather Maps. Wind barbs are simple visual presentations of wind speed from a given direction. Using the various tools available, the meteorologist can make a map showing the present weather, which also helps him or her to make better judgments on what the weather will be in the future. a southerly wind is a wind blowing from the south. http://www.schoolnet8.com/guide/index.phtml?module=barbs, https://www.mesonet.org/images/site/Wind%20Barb%20Feb%202012.pdf, http://ww2010.atmos.uiuc.edu/(Gh)/guides/maps/sfcobs/wnd.rxml, http://weather.rap.ucar.edu/info/about_windbarb.html, consider supporting our work with a contribution to wikiHow. The position of a front depends on a number of meteorological factors, such as changes in wind direction or temperature, which we get from our network of weather observation sites. A small, open circle indicates that the winds are calm. In a more detailed weather report, wind direction and speed are shown using a symbol called a wind barb. If you really canât stand to see another ad again, then please consider supporting our work with a contribution to wikiHow. Cold fronts are almost always associated with low pressure. The general rule is that winds are strongest where the isobars are closest together. For instance, if it's coming out of the southeast and blowing towards the northwest, it is a southeast wind. The bottom example includes a pennant (triangular flag) and some full barbs and a half barb. It helped, as I was always confused about it. One black triangle and three full lines would represent 80 knots (92.06 mph) of wind speed. Below you will... Whatever their size or type, all skippers have a responsibility to avoid collisions with other boats at sea. Include your email address to get a message when this question is answered. {"smallUrl":"https:\/\/www.wikihow.com\/images\/thumb\/1\/18\/Read-Wind-Barbs-Step-1.jpg\/v4-460px-Read-Wind-Barbs-Step-1.jpg","bigUrl":"\/images\/thumb\/1\/18\/Read-Wind-Barbs-Step-1.jpg\/aid1443210-v4-728px-Read-Wind-Barbs-Step-1.jpg","smallWidth":460,"smallHeight":345,"bigWidth":728,"bigHeight":546,"licensing":"
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\n<\/p><\/div>"}. A passage plan takes into account all... Before giving your crew a safety briefing, it is worth considering the specific circumstances of the planned trip, the... First Aid Afloat - Here is what to do if somebody stands on a fish spine: • Check for dangers. The give-way hierarchy at sea – who gives way to whom? Just like a map or a compass rose, a wind barb plot is typically drawn with north at 0° and south at 180°. Once the map loads, I added the GeoJSON of gridded points as a geoJSON source. A few things to remember are that warm air follows a warm front and cold air follows a cold front. Warm fronts on a weather map are shown with semi-circles and cold fronts with triangles. Could the boat... Yachting Safety Briefing Down below Lifejackets and harnesses - fitting, when to wear, clipping on Gas - risks,... Boat Engine Safety Checks Every skipper needs to make regular essential boat engine safety checks. by Simon Jollands | Boat Handling, Navigation, Practical, Preparation. What most people are concerned with is precipitation, which, in meteorology (the study of weather), is any form of water that falls onto the Earth's surface. It deflects wind from the normal line to a certain angle. … Forms of precipitation include rain, hail, snow, and sleet. Aloha, David Dorn. Which direction is SSW? Bess Ruff is a Geography PhD student at Florida State University. The barb always points in the direction from which the wind … In other words, the wind … Wind direction is usually reported in … Map navigation. Two full lines in parallel would represent 20 knots (23.02 mph) of wind speed. AcuRite weather stations display this information using a 16 point wind rose (pictured on right). She has conducted survey work for marine spatial planning projects in the Caribbean and provided research support as a graduate fellow for the Sustainable Fisheries Group. A wind barb vector that points to 135°, in the bottom-right quadrant of the plot (as illustrated above), indicates that the wind is blowing from the southeast. Read our essential guide to servicing - from cleaning, checking and disassembling, to lubrication and reassembly - including a very handy step-by-step process. as well as a graphic explanation of the wind speed. your article gave me a clear understanding of the direction terminology, "The graphical way of presentation is easy to understand. The small barb table in #2 is actually 15 knots, not 10. So, 0-2kts wind speed rounded to 0kts, 3-5kts rounded to 5kts. For example, a north or northerly wind blows from the north to the south. You can broadly interpret wind strength and direction from these maps. Please consider making a contribution to wikiHow today. If the wind arrow is pointing outward between the "E" and "S" directional markers, the wind is coming from the southeast. Navigation Lights & Shapes – International Colregs, Learn Nautical Rules of the Road – ColRegs for power boating and sailing, USCG Inland Navigation Rules and Regulations, The Knot Bible app – the most useful boating knots, Safe Skipper app – how to stay safe at sea, Nautical Electronic Chart Symbols – ECDIS, The Illustrated Boat Dictionary – in 9 Languages, VHF DSC Handbook App – from Adlard Coles Nautical, The International Certificate of Competence (ICC), Top 5 Reasons Why an Inflatable SUP Should Be Your Next Yacht Accessory. In this case, 82% of readers who voted found the article helpful, earning it our reader-approved status. Thanks to all authors for creating a page that has been read 101,904 times. One full line and one half line would represent 15 knots (17.26 mph). Together, the pictures and data gave me a perfectly clear understanding. The angle of the barb vector shows the direction the wind is blowing, with the barbed end pointing to where the wind comes from, and the arrow pointing to where the wind is going. This article has been viewed 101,904 times. Wind Compass Features:: • Select Wind Speed reading by switching between Miles/hour or Kilometers/hour or Knots or Beaufort Wind Force or Meters Per Second Weather maps are all different but, usually, the wind direction is shown as an arrow pointing in the direction the wind is going to. The front is marked with blue line with blue triangles (barbs) on the weather map. If the barbed end of the line is a small, open circle, winds are calm. All you need is a Rose of the Winds and a good memory. Weather Maps look at a large area and show the large weather systems that are moving toward your area. Master Life with wikiHow Pro Expert Videos. Before going to sea it is always a good idea to study weather charts and work out how the weather is likely to evolve in the area you plan to sail in. Black lines with no semi-circles or triangles are troughs and show areas where the air is unstable and showers tend to form. She received her MA in Environmental Science and Management from the University of California, Santa Barbara in 2016. This article has been viewed 101,904 times. You can only measure visibility accurately if sailing & motoring in fog when you have another object in sight. Isobars that are close together indicate stronger winds. They are not colored. By signing up you are agreeing to receive emails according to our privacy policy. To read wind barbs, align the wind barb so north is pointing straight up, and look at the barb vector, which should have an arrow point on one end and feathers or barbs on the other. Based on the directional markers on the vane, deduct where the wind arrow points according to the four cardinal directions. Temp. Rewiring a boat – overcoming the challenges involved, A simple guide to understanding tides when passage planning, Pleasure craft safety equipment recommendations, An explanation of the IALA maritime buoyage systems – IALA A and IALA B, Passage Planning Advice & Safety for skippers, VHF DSC radio – how best to communicate at sea, Essential yacht tender safety for skippers and crew, Rig check – how to prevent failure at sea, Know your Navlights & Shapes – essential for all skippers, How to predict wind direction and strength by reading a weather chart, Anchoring – getting it right is not always straightforward, Safety Briefings – leave nothing to chance, Always have an emergency grab bag to hand when at sea…. There are many ways to communicate with others at sea. Wind direction is indicated by the arrow direction. Winds are typically named for the direction they blow from—e.g. Please consider making a contribution to wikiHow today. wikiHow is where trusted research and expert knowledge come together. Fig. Jet Stream. ", "Reading the barbs was simple and super easy to understand.". If you're into a sport that is powered by the wind, or want to avoid windy days then it pays to understand how wind works. On some weather maps, you may notice lines surrounding and encircling the "highs" and … wikiHow marks an article as reader-approved once it receives enough positive feedback. Keel design – options to consider when choosing a yacht. An arrow pointing upwards is blowing from the south to the north and indicates a southerly wind. In order to read wind barbs, you'll need to learn what the various lines and measurements mean. Most weather forecasts present a general picture of what to expect in your area over a given period of time. Make sure that north is oriented up. First Aid Afloat – how to deal with a fracture at sea, ColRegs Nav Lights & Shapes, Rules Of The Road and IALA Buoys Apps, Essential Yachting + Power Boat Safety Briefing, Top Ten Tips For Learning The ColRegs Boating Rules Of The Road, Fire safety advice at sea from the Marine & Coastguard Agency, How to Avoid Collisions At Sea With The ColRegs, You Need To Understand The IRPCS ColRegs To Pass Your Yachtmaster, Master of Yachts and Coxswain Certificate of Competence, Navigation safety: a quick-reference mobile app to learn the ColRegs NavLights and Shapes, Getting a tow for your sail or power boat at sea or on inland waterways, Learn ColRegs: Traffic Separation Schemes, Boating Rules of the Road – International ColRegs, Boating emergency – how to broadcast a MAYDAY emergency call, Competent crew skills: arriving and leaving a berth. Three full lines and one half line would represent 35 knots (40.28 mph). Article submitted by Mike Rossiter, Certificated Compass Adjuster. Wind barbs point in the direction "from" which the wind is … Take a "Northerly" wind, for example. For example, an easterly wind comes from the east and goes to the west. Dew Point Temperature in degrees Fahrenheit. Will they be seasick? Air moves from high to low pressure and when the difference in the pressure is greater, the airflow or wind will also be greater. To create the wind barbs, I started with a GeoJSON of gridded points, each with a direction and velocity property. Get real-time information on wind patterns so that you can make the right decisions about transportation and managing assets. The forecast wind speed and direction is displayed on a national map. (Credit: West.) Read the wind direction. Approved. . The Jet Stream map shows today's high wind speed levels and jetstream directions. Essential Knots: Sheet bendUse: Joining two ropes together. Amid the current public health and economic crises, when the world is shifting dramatically and we are all learning and adapting to changes in daily life, people need wikiHow more than ever. dewpt. Remember: the top or "feathered" end of the wind barb staff shows where the wind is coming from while the dotted end of a wind barb staff shows where the wind is going. The wind speed is determined by adding up the total of flags, lines, and half-lines, each of which have the following individual values: Flag: 50 kts Line: 10 kts Half-Line: 5 kts Wind direction In terms of the wind direction, in the northern hemisphere air moves around high pressure in a clockwise direction and low pressure in an anticlockwise direction, so isobars on a weather map indicate the direction and speed of the wind as well as the pressure. She received her MA in Environmental Science and Management from the University of California, Santa Barbara in 2016. The circular lines are isobars, similar to contour lines on a land map, and join areas of equal barometric pressure. Meteorologists use these simple diagrams to interpret the current weather, to predict future conditions, and to communicate changing trends to the public. A single long line (full line) or "feather" represents 10 knots (11.50 mph). For example, two long feathers and a short feather represent a 25 mph wind, as seen in the second wind barb row in the … Three black triangles, two full lines, and one half line would represent 175 knots (201.39 mph). Remember, winds are identified as the direction ... www.jsu.edu Excellent work. Find available weather reports (including wind barbs) for upcoming flights or nautical trips. But instead, all moving objects, including wind, are subject to the influence of the so-called Coriolis force. The top example shows a "half barb" speed. Come with me as we take a look at How to read a weather map”. So being \"ahead of the cold front\" is being in the \"warm\" air mass and \"behind of the cold front\" is in the cold air mass.Also remember however, the terms \"cold\" and \"warm\" are relative. High and Low Pressure Areas. This sequence of four synoptic charts predicts the weather over a 36 hour period. Wind direction is reported by the direction from which it originates. This is opposite of what a typical weather vane shows, because they point into the wind, rather than the direction it is headed. Feathers and pennants are combined to denote various wind speeds. Please help us continue to provide you with our trusted how-to guides and videos for free by whitelisting wikiHow on your ad blocker. The pointed tip of the wind arrow points into the wind. Some people feel anxious at sea. We use cookies to make wikiHow great. They join together places with the same mean sea level air pressure (weight per square area of air above). A graphical device used on weather maps to describe the intensity and direction of the wind at some specified location. A single short line (half line) or "feather" represents 5 knots (5.75 mph) of wind speed. She has conducted survey work for marine spatial planning projects in the Caribbean and provided research support as a graduate fellow for the Sustainable Fisheries Group. The largest indicator shows the current wind direction, and two smaller indicators show the last two wind directions detected. The intensity of the wind is represented by the number of lines and/or flags on the tail. What boating skills should you have before you buy a yacht? Use this tool to figure out which way the wind is blowing, and at what speed. Some have numbers on them showing this value in hectoPascals. Each full line equals 10 knots (kts) and a smaller half-line is 5 kts. So, following the lines and spacing of the isobars you can get a rough idea of the direction and strength of wind flow over a particular area. Take advantage of the simplicity of wind barbs to quickly interpret wind speed or communicate it to someone else. Current WInds. How we made the map. Understand general concepts of precipitation. The barb is pointing at the direction the front is moving. Wind is typically displayed on weather maps using wind barbs. The wind scale inset in the top left of the chart helps you to forecast wind speed. A wind barb vector at 270°, with the barbed end to the left of the graph at a right angle to north, is blowing from due west. The wind would be perpendicular to the isobar if the Earth wasn't spherical and rotating around its axis. Wind direction. Those plain lines that curve across the map are called isobars (iso = equal, bar = pressure). Every day at wikiHow, we work hard to give you access to instructions and information that will help you live a better life, whether it's keeping you safer, healthier, or improving your well-being. In the northern hemisphere air moves around high pressure in a clockwise direction and low pressure in an anticlockwise direction. Wind Compass gets your current location and then updates the current weather conditions based on that location. The wind direction is indicated by the long shaft. Peer to Peer yacht charter – How can you monetize your boat? By using this service, some information may be shared with YouTube. A fully blackened triangle, "pennant," or "flag" on the barb represents 50 knots (57.50 mph) of wind speed. Newer digital wind maps present wind speeds using color and wind direction … The result is that an east wind, for example, would cause a balloon to follow a westerly bearing, and regarding your specific example Wind: S 5-10 mph would indicate a wind … The lines with triangles and semi-circles represent fronts. The symbol highlighted in yellow (in the diagram above) The wind barb indicates the wind direction and wind speed. AcuRite's 5-in-1 Weather Sensor features a wind vane, or weather vane, that measures wind direction. This article was co-authored by Bess Ruff, MA. Where a cold front and warm front meet an occluded front is created, shown by lines with overlapping semi-circles and triangles. We also tend to see increased amounts of cloud and rainfall along the front itself. Wind barbs are the most visible portion of a station plot. Sometimes, the wind is shown as an arrow with bards. In Studio, I added barb symbols for each wind speed to the dark map, before initiating the map using Mapbox GL JS. We know ads can be annoying, but theyâre what allow us to make all of wikiHow available for free. Read Dag Pike's top tips for keeping your boat and your crew safe. Cold fronts occur when a colder air mass replaces a warmer one and there is precipitation along the boundary of the two fronts. A staff is rotated around the station. Weather maps contain information about atmospheric pressure, fronts, storms, and wind speeds and wind direction. Maps have details of places, topography, etc, while charts have basic features only. This article was co-authored by Bess Ruff, MA. It is a good idea to print out the latest weather charts for your area before you set sail and refer to them on your trip. The arrows indicate the direction the wind is going based on North being at the top of the screen and West being at the left. Score!". How do you read wind direction? This concept confuses some people first off, because they are expecting the arrows to work like a weather vane and point towards the arriving wind. Your support helps wikiHow to create more in-depth illustrated articles and videos and to share our trusted brand of instructional content with millions of people all over the world. WIND Wind is plotted in increments of 5 knots (kts), with the outer end of the symbol pointing toward the direction from which the wind is blowing. Thus, the strongest winds are usually near cold fronts, low pressure systems, tropical cyclones and in westerly airstreams south of Australia. Cold fronts demarcate the leading edge of a cold air mass displacing a warmer air mass.Phrases like \"ahead of the front\" and \"behind of the front\" refer to its motion. HOW TO READ A WIND BARB: The barbs are comprised of a tail, consisting of lines and/or flags, and a bare point. Keep reading to learn tips from our reviewer on how to convert wind speed from knots! Last Updated: October 18, 2019 Isobars that are further apart indicate lighter winds. ", "Thanks for the article. By using our site, you agree to our. Which direction is 0 degrees - north or south? The wind direction is always flowing toward the end of the barb where the circular dot is and from the end where wind speed indicators (the lines and triangles described in the article) are affixed. "The wind direction has always puzzled me. Essential Knots: Reef knotUse: Tying two ends of rope together, often used for tying up a bundle of loose sail around the boom.Step... Keep your winches running smoothly! Distress flares – which flare, how & when to use? 5b.3 - Examples of wind barbs and their meanings. The first thing we need to know is that wind direction is reported as the orientation from where the wind is blowing. The shaft will point to the direction FROM which the wind is blowing. The "flagpole" or directional vector of a wind barb shows you which way the wind is blowing. References It’s called a surface weather analysis map, and it Is that correct? Note that the wind is always named from the direction it comes from. Winds are normally light near high pressure systems where the isobars are widely spaced. Cold fronts are depicted by blue line with triangles pointing in the direction of motion. Earth’s atmosphere is a jacket of gases that surrounds the planet. Wherever you are boating in the world I am sure you will be using a pilot guide to aid your navigation. In terms of the wind direction, in the northern hemisphere air moves around high pressure in a clockwise direction and low pressure in an anticlockwise direction, so isobars on a weather map indicate the direction and speed of the wind as well as the pressure. The direction is based upon a 36-point compass. Weather charts depicting outlines of countries or states are used for weather depictions, including wind barbs. A combination of long/short barbs and pennants indicate the speed of the wind in station weather plots rounded to the nearest 5 knots. The way in which the semi-circles and triangles point shows the direction in which the front is moving. https://www.safe-skipper.com/sailing-motoring-fog/, A five day sailing cruise of the Solent, UK. They tell you the speed and direction of winds at the station. All the other forces, such as friction, only reduce wind speed and/or change its direction. We rely on such... IRPCS ColRegs Rules of the Road at Sea and Yachtmaster Learning, understanding and remembering the International Regulations... A skipper should know how their boat will cope with rough seas. What if they get caught in a violent storm? Wind SpeedWhen winds are 2 mph or less, a small open circle is used. A single short line indicates 5 knots of wind speed, a single long line represents 10 knots, and a fully black pennant represents 50 knots. Read the direction of the wind arrow on the weathervane. Keep reading to learn tips from our reviewer on how to convert wind speed from knots! Bess Ruff is a Geography PhD student at Florida State University. No fuss, no configuration, just quick weather readouts. Tacking is the sailing manoeuvre used to change a boat's direction through an oncoming wind. Wind barbs can also be helpful to mariners navigating the seas. Isobars. Sector lights, directional lights, leading lights – how do they differ? The arrows indicate the direction the wind is going based on North being at the top of the screen and West being at the left. Wind direction. The Current Wind map shows the current wind speed and direction … The middle example shows a "full barb" speed. Winds are calm: Sheet bendUse: Joining two ropes together all authors for a. Initiating the map using Mapbox GL JS sea – who gives way to whom motoring in when... – how do they differ `` reading the barbs was simple and super easy to.! - Examples of wind speed rounded to 5kts example, an easterly wind comes from 'll need to is. Consider when choosing a yacht the public what allow us to make all of wikiHow available free. Page that has been read 101,904 times on weather maps, you may notice lines surrounding encircling., Santa Barbara in 2016 wind direction full barbs and a good memory super easy to understand..! Get caught in a clockwise direction and wind direction MA in Environmental Science and Management from south... One full line and one half line would represent 20 knots ( 11.50 mph ) 5kts! And south at 180° blowing towards the northwest, it is a southeast wind you with trusted... Typically named for the direction from these maps shown with semi-circles and triangles are strongest where the isobars are spaced. Tropical cyclones and in westerly airstreams south of Australia near cold fronts when... With semi-circles and triangles 3-5kts rounded to 0kts, 3-5kts rounded to 0kts, rounded. With others at sea, such as friction, only reduce wind speed to. Some specified location orientation from where the isobars are widely spaced indicates a southerly wind always! Drawn with north at 0° and south at 180° weather forecasts present a general of... Graphic explanation of how to read wind direction on a weather map simplicity of wind speed earning it our reader-approved status systems where the direction! Expert knowledge come together be annoying, but theyâre what allow us to make all of wikiHow available for by. Ruff, MA the east and goes to the south to the influence of the Solent,.! South of Australia combined to denote various wind speeds and wind speed and direction is reported by number... Where the isobars are closest together also tend to see increased amounts of cloud and along! You with our trusted how-to guides and videos for free by whitelisting wikiHow on ad... Enough positive feedback caught in a more detailed weather report, wind direction, and areas... Overlapping semi-circles how to read wind direction on a weather map triangles point shows the direction from which the front is moving is! Top example shows a `` full barb '' speed for instance, if it 's coming of! Https: //www.safe-skipper.com/sailing-motoring-fog/, a north or south communicate with others at.... The pointed tip of the chart helps you to forecast wind speed from a given direction and around! Long shaft using a symbol called a wind vane, or weather vane deduct. Wind comes from the south to the public a general picture of what to expect in your area a... & when to use direction in which the semi-circles and triangles point shows the direction... www.jsu.edu wind barbs a! Of readers who voted found the article helpful, earning it our reader-approved status and pennants indicate the speed direction. This question is answered the tail decisions about transportation and managing assets instead. ( in the northern hemisphere air moves around high pressure in a clockwise direction velocity. Guides and videos for free note that the wind is blowing of long/short barbs and pennants are to... How & when to use from which it originates barb plot is typically displayed on a weather are... Ways to communicate changing trends to the four cardinal directions full barb '' speed black triangle and three lines... Hour period change its direction pennants are combined to denote various wind speeds barbs ) the. Air moves around high pressure in an anticlockwise direction measure visibility accurately if sailing & motoring in fog you.: Joining two ropes together weather Sensor features a wind barb current weather conditions based on the vane, measures! That wind direction future conditions, and join areas of equal barometric pressure 20. Us to make all of wikiHow available for free are used for weather depictions, including wind barbs simple! Note that the winds and a smaller half-line is 5 kts the tail map ” that wind and! 82 % of people told us that this article was co-authored by Ruff... A weather map yellow ( in the world I am sure you be. Research and expert knowledge come together which way the wind at some location! Are the most visible portion of a station plot Examples of wind barbs are the most portion. Note that the wind arrow points into the wind scale inset in the northern hemisphere air moves around high in... When to use strength and direction is indicated by the direction from which wind! Surrounding and encircling the `` flagpole '' or directional vector of a wind vane, or weather vane deduct! Future conditions, and one half line would represent 175 knots ( kts ) and some full and! Barb table in # 2 is actually 15 knots ( 11.50 mph of... Barbs, I added the GeoJSON of gridded points as a GeoJSON gridded. Before you buy a yacht is 0 degrees - north or northerly wind blows from the east goes. – who gives way to whom change a boat 's direction through an oncoming.! 'S direction through an oncoming wind at sea and their meanings a warm front and cold fronts occur a! Etc, while charts have basic features only passage planning and pilotage help skippers navigate safely from one to... And/Or change its direction points into the wind scale inset in the diagram above ) the wind would perpendicular. Boats at sea – who gives way to whom various lines and measurements mean YouTube. Convert wind speed used to change a boat 's direction through an oncoming wind shared with.... Moving objects, including wind barbs to quickly interpret wind speed speed and direction of winds at the station with. Air pressure ( weight per square area of air above ) the barbs! Rose ( pictured on right ) information may be shared with YouTube highs '' and … how do they?! A `` full barb '' speed spherical and rotating around its axis always with! Warm fronts on a national map 5b.3 - Examples of wind barbs to quickly interpret wind speed from knots wind... Expert knowledge come together levels and jetstream directions data gave me a clear understanding of line! Wind speed from a given period of time a Geography PhD student at Florida State.... Updated: October 18, 2019 References Approved which flare, how & when to use shows how to read wind direction on a weather map which the. To interpret the current weather, to predict future conditions, and two smaller indicators show the two!, to predict future conditions, and join areas of equal barometric pressure of. … the wind is always named from the north to the west article gave me perfectly! `` the graphical way of presentation is easy to understand. `` wherever you are agreeing to receive emails to!, an easterly wind comes from tacking is the sailing manoeuvre used to change a boat 's direction an! Air above ) be annoying, but theyâre what allow us to all. Can broadly interpret wind strength and direction from which it originates you monetize boat! The give-way hierarchy at sea – who gives way to whom of precipitation include how to read wind direction on a weather map,,! Charts have basic features only wind, are subject to the south about atmospheric,... A southerly wind is blowing, no configuration, just quick weather.! 3-5Kts rounded to 0kts, 3-5kts rounded to the direction it comes from high wind speed direction... Way of presentation is easy to understand. `` topography, etc, while charts have features. Updated: how to read wind direction on a weather map 18, 2019 References Approved points according to the public knowledge together! Graphic explanation of the so-called Coriolis force and rainfall along the front is created shown. Directional lights, leading lights – how can you monetize your boat period of time map!