Coastlines and States won't plot

Attempting to plot some meteorological data. Plot the data and then add states and coastlines. I’ve tried adjusting zorder but states and coastlines won’t show up. Here’s the matplotlib portion of the code.

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fig = plt.figure(figsize=(14,8))

ax=fig.add_subplot(1,1,1, projection=smoke.metpy.cartopy_crs)
smoke_fill = ax.contourf(smoke.x,smoke.y,smoke.values, cmap=‘jet’, levels = np.arange(0.01,1,0.05))
plt.colorbar(smoke_fill, orientation=‘horizontal’,pad=0.0, aspect=50, shrink=0.65)
ax.coastlines(color=‘black’,resolution=‘10m’)
ax.add_feature(cfeature.STATES.with_scale(‘50m’))