A number of people have asked about adding shapefile outlines to a WRF plot.
I’ve added an example to our shapefiles example page, and I’ll include it here.
http://www.ncl.ucar.edu/Applications/shapefiles.shtml#ex14
You should be able to use this script to plot any “HGT” variable from a WRF output file.
The shapefile outlines for the USA and Canada were downloaded from http://www.gadm.org/country.
The important key here is to set the special “PanelPlot” option to True before you call wrf_map_overlays.
If you don’t do this, then the contour plot will be removed after wrf_map_overlays is called.
—Mary
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