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When making a skew-T chart with MetPy, it can be difficult to see the temperature and dew point traces with the fiducial lines (mixing ratio, moist adiabats, etc.) plotted as well. Is there a method (not seen in the documentation that I see) to fade these into the background (e.g. alpha)?

Also setting the limits seems to behave a bit strangely as we want to set the x-limit on a skewed line. Not really sure that that could be made easier.

geo_leeman
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1 Answers1

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So when you create a Skew-T with:

import matplotlib.pyplot as plt
from metpy.plots import SkewT

fig = plt.figure()
skew = SkewT(fig)

You can set the limits just like you would with a standard Matplotlib Axes, by accessing the .ax attribute on the SkewT instance:

skew.ax.set_ylim(1000, 100)
skew.ax.set_xlim(-40, 60)

To control the appearance of the special plot lines, just pass keyword arguments like you would when controlling the appearance of any Matplotlib line; for fading the line, you would want to pass the alpha:

skew.plot_moist_adiabats(color='dark red', alpha=0.2)
DopplerShift
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