ALERT: No maps available for GFS run 18 UTC Fri 14 Dec 2018. Defaulting to 18 UTC Wed 24 Apr 2024.
ALERT: Maps for forecast hour 300 do not exist, defaulting to fhour = 240.
Valid: 18 UTC Sat 04 May 2024
ERROR: Parameter HGT unavailable for GFS forecast hour 240.