I want to plot some tephigrams.
Where can I find pressure, temperature and dewpoint data in text format?
Archive, reanalysis and forecast data of those variables worldwide from GFS model can be accessed at NOAA Ready.
This is an example of those variables in the forecast for a given location:
And if you click the "Text Result" ling before the meteorogram you can access a tab-delimited text file that looks like this: