Limits:

• Wind Speed: UTCI as used in the software is limited to a wind speed range of 0.5 to 17 m/s related to 10 m Height
• Height reference: UTCI always related to wind speed at 10 m height while the biometeorological parameters are normally define bewteen 1.5 and 2 m…

References

Link to the original source code and to the EU COST Action 730 Homepage: http://www.utci.org/utci_doku.php