ALERT: No maps available for GFS run 18 UTC Tue 26 May 2020. Defaulting to 18 UTC Mon 06 May 2024.
ALERT: Maps for forecast hour 324 do not exist, defaulting to fhour = 264.
Valid: 18 UTC Fri 17 May 2024
ERROR: Parameter CREF unavailable for GFS forecast hour 264.