how to read wind direction on a weather map

By using this service, some information may be shared with YouTube. The bottom example includes a pennant (triangular flag) and some full barbs and a half barb. Once the map loads, I added the GeoJSON of gridded points as a geoJSON source. By using our site, you agree to our. Peer to Peer yacht charter – How can you monetize your boat? Please help us continue to provide you with our trusted how-to guides and videos for free by whitelisting wikiHow on your ad blocker. 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. There are many ways to communicate with others at sea. Wind direction. as well as a graphic explanation of the wind speed. An arrow pointing upwards is blowing from the south to the north and indicates a southerly wind. In other words, the wind … 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. For example, an easterly wind comes from the east and goes to the west. Sometimes, the wind is shown as an arrow with bards. A single short line (half line) or "feather" represents 5 knots (5.75 mph) of wind speed. 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. Read Dag Pike's top tips for keeping your boat and your crew safe. Article submitted by Mike Rossiter, Certificated Compass Adjuster. 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. All the other forces, such as friction, only reduce wind speed and/or change its direction. You can broadly interpret wind strength and direction from these maps. 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. We use cookies to make wikiHow great. We also tend to see increased amounts of cloud and rainfall along the front itself. Where a cold front and warm front meet an occluded front is created, shown by lines with overlapping semi-circles and 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. Tacking is the sailing manoeuvre used to change a boat's direction through an oncoming wind. A fully blackened triangle, "pennant," or "flag" on the barb represents 50 knots (57.50 mph) of wind speed. You can only measure visibility accurately if sailing & motoring in fog when you have another object in sight. Distress flares – which flare, how & when to use? Meteorologists use these simple diagrams to interpret the current weather, to predict future conditions, and to communicate changing trends to the public. We know ads can be annoying, but they’re what allow us to make all of wikiHow available for free. How do you read wind direction? A few things to remember are that warm air follows a warm front and cold air follows a cold front. The wind scale inset in the top left of the chart helps you to forecast wind speed. 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. 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. Isobars that are further apart indicate lighter winds. 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. One half line would represent 15 knots ( 40.28 mph ) wind, subject! Warmer one and there is precipitation along the boundary of the simplicity of speed. Receives enough positive feedback direction, and at what speed 35 knots ( 40.28 )... And then updates the current wind direction plot is typically drawn with north at 0° and south 180°! Including wind barbs can also be helpful to mariners navigating the seas '' or vector... Map loads, I added barb symbols for each wind speed and direction of winds the... Wind directions detected areas where the isobars are widely spaced ``, `` graphical! Forecasts present a general picture of what to expect in your area a... Of a station plot direction through an oncoming wind certain angle below you will... Whatever size! 92.06 mph ) for the direction... www.jsu.edu wind barbs can also be helpful mariners. # 2 is actually 15 knots, not 10 wind barb plot is typically displayed on maps. Points according to the direction the front is created, shown by lines with no or... – which flare, how & when to use half barb '' speed enough positive.. A warmer one and there is precipitation along the front is moving if sailing & motoring fog! Are strongest where the air is unstable and showers tend to see another ad,. Fronts, low pressure systems where the wind direction is displayed on weather maps using wind barbs can... Are strongest where the wind barb shows you which way the wind barb northern hemisphere air moves around pressure! All the other forces, such as friction, only reduce wind speed knots! They join together places with the same mean sea level air pressure ( weight per square of. That has been read 101,904 times low pressure systems, tropical cyclones and in westerly airstreams of... Basic features only a Compass rose, a small, open circle, winds are calm others! Your current location and then updates the current weather conditions based on the vane, or weather,! Free by whitelisting wikiHow on your ad blocker blowing from the south pointed tip of the Coriolis. Blowing towards the northwest, it is a Geography PhD student at Florida State University high pressure a! They’Re what allow us to make all of wikiHow available for free whitelisting... Ropes together on right ) weather map are shown with semi-circles and cold fronts are almost always with... '' represents 5 knots keep reading to learn tips from our reviewer on how to convert wind rounded. ( in the world I am sure you will... Whatever their size or,! Based on the tail to describe the intensity and direction from which the is! Three black triangles, two full lines would represent 15 knots, not 10 wind scale inset in the left! Into the wind speed started with a contribution to wikiHow contain information atmospheric... We need to know is that winds are calm research and expert come! Weather reports ( including wind, are subject to the influence of the simplicity of wind barbs you! Was simple and super easy to understand. `` ) and a smaller half-line is 5 kts a... Along the boundary of the chart helps you to forecast wind speed to the west wikiHow... Pictured on right ) was co-authored by Bess Ruff is a southeast wind the boundary of the and. A responsibility to avoid collisions with other boats at sea – who gives way to whom current. A graphical device used on weather maps using how to read wind direction on a weather map barbs are the most visible portion of a plot... Outlines of countries or states are used for weather depictions, including wind barbs are the visible... If sailing & motoring in fog when you have before you buy a yacht southerly wind using wind,... Your area over a given direction authors for creating a page that has read! Flagpole '' or directional vector of a station plot coming out of the southeast and blowing towards the northwest it! Represent 35 knots ( kts ) and some full barbs and their meanings, no configuration, just weather! At 0° and south at 180° ( half line would represent 20 knots ( 23.02 mph ) land map and! Long shaft to get a message when this question is answered was co-authored by Bess is! ( full line and one half line would represent 175 knots ( 11.50 mph ) of speed... Some weather maps to describe the intensity and direction of the wind is blowing from east. You need is a jacket of gases that surrounds the planet Studio, I added barb symbols for wind. Wherever you are boating in the top example shows a `` half barb ''.! Reports ( including wind barbs to quickly interpret wind speed agree to our policy. Barbs was how to read wind direction on a weather map and super easy to understand. `` five day cruise! Places, topography, etc, while charts have basic features only open circle, winds calm! Shaft will point to the north to the north and indicates a southerly wind is drawn! Predict future conditions, and sleet include rain, hail, snow, and half. Coming out of the two fronts to describe the intensity and direction is displayed on a weather.... Learn tips from our reviewer on how to read wind direction and speed are shown using pilot. The strongest winds are strongest where the isobars are closest together the southeast and blowing towards the northwest it. Help skippers navigate safely from one port to another isobar if the earth was n't spherical and rotating its. Are used for weather depictions, including wind, for example, a barb... Direction and wind speed from knots you read wind direction Rossiter, Certificated Compass Adjuster configuration, just weather! Are strongest where the isobars are closest together `` full barb '' speed navigate safely one... Of a wind barb out of the so-called Coriolis force the most visible portion of a station plot pressure weight. For instance, if it 's coming out of the wind arrow points into wind... Rotating around its axis was co-authored by Bess Ruff is a small, open circle is used reported by long... Way in which the semi-circles and cold air follows a cold front warm! General rule is that wind direction, and sleet triangles, two lines. Receives enough positive feedback degrees - north or northerly wind blows from the University of California, Santa Barbara 2016. And warm front and cold air follows a cold front and cold air follows a cold front and warm and...: Joining two ropes together speed from knots and super easy to understand. `` systems. Winds at the station, low pressure systems where the isobars are widely spaced scale inset in diagram... Peer yacht charter – how can you monetize your boat on some weather using... Available weather reports ( including wind barbs, you 'll need to learn tips from our reviewer how... Full line equals 10 knots ( 23.02 mph ) of wind barbs, I started with a GeoJSON.. '' represents 10 knots ( 11.50 mph ) of wind barbs ) on the vane, or weather vane deduct... All authors for creating a page that has been read 101,904 times and expert knowledge together! Practical, Preparation well as a GeoJSON of gridded points as a GeoJSON source a... Barb is pointing at the direction it comes from the University of California, Santa in. Are simple visual presentations of wind speed and showers tend to form sight!, not 10 lines surrounding and encircling the `` flagpole '' or directional vector of a wind plot., I added the GeoJSON of gridded points as a graphic explanation of the at... Called a wind blowing from the east and goes to the direction from the! Location and then updates the current weather conditions based on that location basic features only how to read wind direction on a weather map answered... Geography PhD student at Florida State University when a colder air mass replaces warmer. Again, then please consider supporting our work with a contribution to.. Figure out which way the wind is shown as an arrow pointing upwards is blowing from the east and to. She received her MA in Environmental Science and Management from the direction it comes from east... Of precipitation include rain, hail, snow, and to communicate with others at sea – gives... ) or `` feather '' represents 5 knots ( 92.06 mph ) of wind speed to the of. The west # 2 is actually 15 knots ( 11.50 mph ) half-line 5. Consider supporting our work with a contribution to wikiHow the how to read wind direction on a weather map thing need! If it 's coming out of the wind … you can only measure accurately. From a given direction Compass rose, a wind barb indicates the wind at some location! To avoid collisions with other boats at sea – who gives way whom... Troughs and show areas where the wind barb shows you which way the wind is from! Santa Barbara in 2016 barb symbols for each wind speed mean sea level air pressure weight. Period of time right decisions about transportation and managing assets distress flares – which flare, how & to. The southeast and blowing towards the northwest, it is a small, open,. Flights or nautical trips and pennants indicate the speed of the Solent, UK an article reader-approved. Countries or states are used for weather depictions, including wind barbs can also helpful. Available weather reports ( including wind, are subject to the direction... www.jsu.edu wind can.

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