#YY  MM DD hh mm CHILL  HEAT   ICE WSPD10 WSPD20
#yr  mo dy hr mn  degC  degC cm/hr    m/s    m/s
2025 04 21 23 00   6.9    MM    MM     MM     MM
2025 04 21 22 00   7.6    MM    MM     MM     MM
2025 04 21 07 00   8.2    MM    MM     MM     MM
2025 04 21 06 00   9.5    MM    MM     MM     MM
2025 04 21 04 00   8.3    MM    MM     MM     MM
2025 04 21 03 00   8.2    MM    MM     MM     MM
2025 04 21 02 00   7.7    MM    MM     MM     MM
2025 04 21 01 00   6.9    MM    MM     MM     MM
2025 04 21 00 00   6.4    MM    MM     MM     MM
2025 04 20 23 00   7.5    MM    MM     MM     MM