#YY  MM DD hh mm CHILL  HEAT   ICE WSPD10 WSPD20
#yr  mo dy hr mn  degC  degC cm/hr    m/s    m/s
2025 06 21 04 00   8.4    MM    MM     MM     MM
2025 06 21 03 00   8.1    MM    MM     MM     MM
2025 06 21 02 00   8.1    MM    MM     MM     MM
2025 06 21 01 00   8.9    MM    MM     MM     MM