COLUMBIA--AT ST HELENS (SHNO3)

Observed    Forecast/Trend Issued: 2025-05-10 13:55 PDT
Date/Time (PDT)Velocity    Date/Time (PDT)Velocity
      2025-05-11 05:001.81
      2025-05-11 06:002.02
      2025-05-11 07:002.18
      2025-05-11 08:002.31
      2025-05-11 09:002.39
      2025-05-11 10:002.46
      2025-05-11 11:002.51
      2025-05-11 12:002.54
      2025-05-11 13:002.52
      2025-05-11 14:002.39
      2025-05-11 15:002.11
      2025-05-11 16:001.83
      2025-05-11 17:001.71
      2025-05-11 18:001.82
      2025-05-11 19:002.01
      2025-05-11 20:002.16
      2025-05-11 21:002.28
      2025-05-11 22:002.36
      2025-05-11 23:002.41
      2025-05-12 00:002.38
      2025-05-12 01:002.23
      2025-05-12 02:001.93
      2025-05-12 03:001.57
      2025-05-12 04:001.44
      2025-05-12 05:001.63
      2025-05-12 06:001.91
      2025-05-12 07:002.13
      2025-05-12 08:002.29
      2025-05-12 09:002.41
      2025-05-12 10:002.49
      2025-05-12 11:002.56
      2025-05-12 12:002.62
      2025-05-12 13:002.65
      2025-05-12 14:002.61
      2025-05-12 15:002.42
      2025-05-12 16:002.13
      2025-05-12 17:001.91
      2025-05-12 18:001.91
      2025-05-12 19:002.06
      2025-05-12 20:002.25
      2025-05-12 21:002.4
      2025-05-12 22:002.49
      2025-05-12 23:002.55
      2025-05-13 00:002.59
      2025-05-13 01:002.55
      2025-05-13 02:002.36
      2025-05-13 03:002.07
      2025-05-13 04:001.86
      2025-05-13 05:001.87
      2025-05-13 06:002.03
      2025-05-13 07:002.24
      2025-05-13 08:002.4
      2025-05-13 09:002.52
      2025-05-13 10:002.62
      2025-05-13 11:002.7
      2025-05-13 12:002.79
      2025-05-13 13:002.86
      2025-05-13 14:002.87
      2025-05-13 15:002.79
      2025-05-13 16:002.58
      2025-05-13 17:002.27
      2025-05-13 18:002.1
      2025-05-13 19:002.15
      2025-05-13 20:002.3
      2025-05-13 21:002.42
      2025-05-13 22:002.5
      2025-05-13 23:002.57
      2025-05-14 00:002.62
      2025-05-14 01:002.65
      2025-05-14 02:002.6
      2025-05-14 03:002.34
      2025-05-14 04:002.03
      2025-05-14 05:001.91
      2025-05-14 06:002.01
      2025-05-14 07:002.2
      2025-05-14 08:002.37
      2025-05-14 09:002.5
      2025-05-14 10:002.61
      2025-05-14 11:002.7
      2025-05-14 12:002.8
      2025-05-14 13:002.87
      2025-05-14 14:002.9
      2025-05-14 15:002.87
      2025-05-14 16:002.75
      2025-05-14 17:002.51
      2025-05-14 18:002.23
      2025-05-14 19:002.16
      2025-05-14 20:002.27
      2025-05-14 21:002.42
      2025-05-14 22:002.54
      2025-05-14 23:002.62
      2025-05-15 00:002.66
      2025-05-15 01:002.68
      2025-05-15 02:002.66
      2025-05-15 03:002.49
      2025-05-15 04:002.17
      2025-05-15 05:001.91
      2025-05-15 06:001.88
      2025-05-15 07:002.03
      2025-05-15 08:002.24
      2025-05-15 09:002.4
      2025-05-15 10:002.51
      2025-05-15 11:002.6
      2025-05-15 12:002.66
      2025-05-15 13:002.72
      2025-05-15 14:002.76
      2025-05-15 15:002.8
      2025-05-15 16:002.79
      2025-05-15 17:002.64
      2025-05-15 18:002.37
      2025-05-15 19:002.15
      2025-05-15 20:002.14
      2025-05-15 21:002.25
      2025-05-15 22:002.36
      2025-05-15 23:002.45
      2025-05-16 00:002.52
      2025-05-16 01:002.57
      2025-05-16 02:002.59
      2025-05-16 03:002.51
      2025-05-16 04:002.27
      2025-05-16 05:001.98
      2025-05-16 06:001.82
      2025-05-16 07:001.89
      2025-05-16 08:002.1
      2025-05-16 09:002.29
      2025-05-16 10:002.43
      2025-05-16 11:002.53
      2025-05-16 12:002.61
      2025-05-16 13:002.67
      2025-05-16 14:002.72
      2025-05-16 15:002.76
      2025-05-16 16:002.77
      2025-05-16 17:002.7
      2025-05-16 18:002.49
      2025-05-16 19:002.21
      2025-05-16 20:002.08
      2025-05-16 21:002.11
      2025-05-16 22:002.24
      2025-05-16 23:002.36
      2025-05-17 00:002.45
      2025-05-17 01:002.5
      2025-05-17 02:002.53
      2025-05-17 03:002.5
      2025-05-17 04:002.34
      2025-05-17 05:002.06
      2025-05-17 06:001.8
      2025-05-17 07:001.75
      2025-05-17 08:001.91
      2025-05-17 09:002.14
      2025-05-17 10:002.33
      2025-05-17 11:002.44
      2025-05-17 12:002.53
      2025-05-17 13:002.59
      2025-05-17 14:002.64
      2025-05-17 15:002.67
      2025-05-17 16:002.68
      2025-05-17 17:002.63
      2025-05-17 18:002.48
      2025-05-17 19:002.26
      2025-05-17 20:002.1
      2025-05-17 21:002.06
      2025-05-17 22:002.14
      2025-05-17 23:002.26
      2025-05-18 00:002.37
      2025-05-18 01:002.44
      2025-05-18 02:002.47
      2025-05-18 03:002.47
      2025-05-18 04:002.39
      2025-05-18 05:002.21
      2025-05-18 06:001.99
      2025-05-18 07:001.86
      2025-05-18 08:001.87
      2025-05-18 09:001.99
      2025-05-18 10:002.15
      2025-05-18 11:002.3
      2025-05-18 12:002.4
      2025-05-18 13:002.47
      2025-05-18 14:002.53
      2025-05-18 15:002.58
      2025-05-18 16:002.61
      2025-05-18 17:002.62
      2025-05-18 18:002.56
      2025-05-18 19:002.4
      2025-05-18 20:002.18
      2025-05-18 21:002.02
      2025-05-18 22:001.99
      2025-05-18 23:002.07
      2025-05-19 00:002.2
      2025-05-19 01:002.32
      2025-05-19 02:002.39
      2025-05-19 03:002.43
      2025-05-19 04:002.43
      2025-05-19 05:002.36
      2025-05-19 06:002.2
      2025-05-19 07:002.02
      2025-05-19 08:001.9
      2025-05-19 09:001.9
      2025-05-19 10:002
      2025-05-19 11:002.15
      2025-05-19 12:002.3
      2025-05-19 13:002.4
      2025-05-19 14:002.47
      2025-05-19 15:002.52
      2025-05-19 16:002.57
      2025-05-19 17:002.6
      2025-05-19 18:002.6
      2025-05-19 19:002.53
      2025-05-19 20:002.35
      2025-05-19 21:002.13
      2025-05-19 22:001.97
      2025-05-19 23:001.96
      2025-05-20 00:002.05
      2025-05-20 01:002.18
      2025-05-20 02:002.31
      2025-05-20 03:002.39
      2025-05-20 04:002.43
      2025-05-20 05:002.45