#YY  MM DD hh mm WVHT  SwH  SwP  WWH  WWP SwD WWD  STEEPNESS  APD MWD
#yr  mo dy hr mn    m    m  sec    m  sec  -  degT     -      sec degT
2024 04 19 06 00  1.0   MM   MM  1.0  4.0  MM  MM VERY_STEEP   MM -99
2024 04 19 00 00  1.5   MM   MM  1.5  4.0  MM  MM VERY_STEEP   MM -99
2024 04 18 18 00  1.0   MM   MM  1.0  4.0  MM  MM VERY_STEEP   MM -99
2024 04 18 12 00  1.0   MM   MM  1.0  4.0  MM  MM VERY_STEEP   MM -99
2024 04 18 06 00  1.0   MM   MM  1.0  4.0  MM  MM VERY_STEEP   MM -99