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Pressure and Wind Vectors
This panel depicts sea-level pressure and surface wind vectors. This
chart is useful for finding fronts and
high and low
pressure systems.
The green arrows represent wind vectors.
Wind vectors show wind direction and wind speed. The arrows point in
the direction the wind is blowing and the longer the wind vector the
stronger the wind. From the map above you can easily find
warm, cold,
occluded, and
stationary fronts.
Fronts are usually located in areas where winds
come together and change direction. Low
and high pressure systems can also be located
from the map above. Winds around a low pressure system move
counter-clockwise (cyclonic) and in towards the center. While winds in
high pressure move clockwise (anticylonic) and out away from the center.
The solid white contours represent pressure contours
(isobars) in millibars.
The isobars have an interval of 4 millibars. The wind speed is directly
related to the distance between the isobars, The closer they are together,
the stronger the pressure gradient,
and the stronger the wind.
For more information on how pressure affects the weather go to our
forces and winds.
sea level pressure
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pres, ir sat
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![[Image: (34K)]](gifs/sfcslpvec1.gif){kind=link}