[gradsusr] Get direction of max wind in hourly time serie of a point

[claudiomet]

Greetings users.

I'm writing a script to extract data of a single point in ascii file
(my data set is hourly and I'm extracting daily vaues of max temp, min
temp, max wind, max rel hum, etc... solved).

But my problem is that I need to obtain the direction of the wind at
the hour of the max wind intensity and the prevailing wind of the day
¿How can I do this?

Thanks in advance !