ALERT: No maps available for GFS run 12 UTC Sat 21 Apr 2018. Defaulting to 06 UTC Sat 11 May 2024.
ALERT: Maps for forecast hour 324 do not exist, defaulting to fhour = 18.
Valid: 00 UTC Sun 12 May 2024
ERROR: Parameter CREF unavailable for GFS forecast hour 18.