#YY  MM DD hh mm CHILL  HEAT   ICE WSPD10 WSPD20
#yr  mo dy hr mn  degC  degC cm/hr    m/s    m/s
2025 05 21 14 00   9.9    MM    MM     MM     MM
2025 05 21 12 00   8.5    MM    MM     MM     MM
2025 05 21 11 00   8.6    MM    MM     MM     MM
2025 05 21 07 00  10.3    MM    MM     MM     MM