#YY  MM DD hh mm CHILL  HEAT   ICE WSPD10 WSPD20
#yr  mo dy hr mn  degC  degC cm/hr    m/s    m/s
2013 04 29 06 00   8.7    MM    MM     MM     MM
2013 04 29 03 00   8.4    MM    MM     MM     MM
2013 04 29 00 00   7.9    MM    MM     MM     MM
2013 04 28 21 00   7.8    MM    MM     MM     MM
2013 04 28 18 00   6.9    MM    MM     MM     MM
2013 04 28 15 00   6.5    MM    MM     MM     MM
2013 04 28 12 00   7.8    MM    MM     MM     MM
2013 04 28 09 00   5.7    MM    MM     MM     MM