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What you need to know about ... Wind Barbs article revised Octonber 2009 Wind barbs are a convenient way to represent both wind direction and speed. Wind barbs have three parts: a dot, a staff and feathers or flags. The staff part of a wind barb shows wind direction. The dot end of the staff is where the wind is blowing to, while the top of the staff shows the direction from which the wind is coming. The top row of wind barbs in the figure to the right all indicate a north wind. The dot is to the south and the top of the wind barb staff is to the north. The second row of wind barbs in the figure to the right shows how the wind barb is rotated to denote different wind directions. Wind direction can also be reported as a compass degree. There are 360 degrees on the compass, with north being 0 or 360 degrees and south 180 degrees. Wind Direction Wind Speed Wind speed is indicated by feathers added to the top of the staff. These feathers show wind speed adjusted to the nearest 5 mph increment. A short feather represents a 5 mph average wind speed. A long feather equals 10 mph. A pennant or flag is used to show a 50-mph wind speed. When winds are 2 mph or less, a small open circle is used. Feathers and pennants are combined to denote various wind speeds. For example, two long feathers and a short feather represent a 25 mph wind, as seen in the second wind barb row in the figure below. Wind barbs show wind speed and direction. Above are examples of varying winds. Speed: calm units NA All blowing from the North 5 10 15 20 50 55 60 Dir (from): (toward): Speed: units Dir (from): (toward): 25 N S 25 NW SE 25 W E 25 SW NE 25 S N 25 SE NW 25 E W 25 NE SW or all towards the South
Object Description
Okla State Agency |
Climatological Survey, Oklahoma |
Okla Agency Code | 'CLI' |
Title | What you need to know about... wind barbs |
Authors | Oklahoma Mesonet. |
Publisher | Oklahoma State University |
Publication Date | 2009-10 |
Publication type |
Fact Sheet |
Subject |
Winds--Speed--Measurement. Meteorology--Charts, diagrams, etc. Wind power--Oklahoma. |
Purpose | Wind barbs are a convenient way to represent both wind direction and speed. Wind barbs have three parts: a dot, a staff and feathers or flags. |
Notes | article revised October 2009 |
OkDocs Class# | C2800.1 W763b 2007 |
Digital Format | PDF, Adobe Reader required |
ODL electronic copy | Downloaded from agency website: agweather.mesonet.org/info/weather_products/wind_barbs/wind_barbs.pdf |
Rights and Permissions | This Oklahoma state government publication is provided for educational purposes under U.S. copyright law. Other usage requires permission of copyright holders. |
Language | English |
Date created | 2012-08-20 |
Date modified | 2014-06-25 |
OCLC number | 890220139 |
Description
Title | wind_barbs 1 |
Full text | What you need to know about ... Wind Barbs article revised Octonber 2009 Wind barbs are a convenient way to represent both wind direction and speed. Wind barbs have three parts: a dot, a staff and feathers or flags. The staff part of a wind barb shows wind direction. The dot end of the staff is where the wind is blowing to, while the top of the staff shows the direction from which the wind is coming. The top row of wind barbs in the figure to the right all indicate a north wind. The dot is to the south and the top of the wind barb staff is to the north. The second row of wind barbs in the figure to the right shows how the wind barb is rotated to denote different wind directions. Wind direction can also be reported as a compass degree. There are 360 degrees on the compass, with north being 0 or 360 degrees and south 180 degrees. Wind Direction Wind Speed Wind speed is indicated by feathers added to the top of the staff. These feathers show wind speed adjusted to the nearest 5 mph increment. A short feather represents a 5 mph average wind speed. A long feather equals 10 mph. A pennant or flag is used to show a 50-mph wind speed. When winds are 2 mph or less, a small open circle is used. Feathers and pennants are combined to denote various wind speeds. For example, two long feathers and a short feather represent a 25 mph wind, as seen in the second wind barb row in the figure below. Wind barbs show wind speed and direction. Above are examples of varying winds. Speed: calm units NA All blowing from the North 5 10 15 20 50 55 60 Dir (from): (toward): Speed: units Dir (from): (toward): 25 N S 25 NW SE 25 W E 25 SW NE 25 S N 25 SE NW 25 E W 25 NE SW or all towards the South |
Date created | 2012-08-20 |
Date modified | 2012-08-20 |