ALERT: No maps available for GFS run 12 UTC Tue 18 Dec 2018. Defaulting to 12 UTC Wed 24 Apr 2024.
ALERT: Maps for forecast hour 108 do not exist, defaulting to fhour = 54.
Valid: 18 UTC Fri 26 Apr 2024
ERROR: Parameter SSPD unavailable for GFS forecast hour 54.