ALERT: No maps available for GFS run 18 UTC Fri 21 Sep 2018. Defaulting to 06 UTC Tue 23 Apr 2024.
ALERT: Maps for forecast hour 21 do not exist, defaulting to fhour = 09.
Valid: 15 UTC Tue 23 Apr 2024
ERROR: Parameter THCK unavailable for GFS forecast hour 09.