Hi,
I think that according to the pywws documentation available, the thresholds for kmph should be 1, 5, 12, 20, 30, 40, 56 - recalculated from raw m/s and mph (and rounded to some "nicer" number) - this should represent the first part of Beaufort scale.
Also slightly modified the scripts to have latest data always at the table top.
You can see at jimicek.dyndns.org:8080/meteo my evaluation version.
Regards,
Jimicek