COLUMBIA--AT ST HELENS (SHNO3)

Observed    Forecast/Trend Issued: 2026-03-12 15:27 PDT
Date/Time (PDT)Velocity    Date/Time (PDT)Velocity
      2026-03-12 21:002.73
      2026-03-12 22:002.69
      2026-03-12 23:002.59
      2026-03-13 00:002.46
      2026-03-13 01:002.4
      2026-03-13 02:002.42
      2026-03-13 03:002.5
      2026-03-13 04:002.58
      2026-03-13 05:002.66
      2026-03-13 06:002.71
      2026-03-13 07:002.73
      2026-03-13 08:002.71
      2026-03-13 09:002.64
      2026-03-13 10:002.52
      2026-03-13 11:002.42
      2026-03-13 12:002.41
      2026-03-13 13:002.5
      2026-03-13 14:002.62
      2026-03-13 15:002.72
      2026-03-13 16:002.81
      2026-03-13 17:002.87
      2026-03-13 18:002.92
      2026-03-13 19:002.96
      2026-03-13 20:003
      2026-03-13 21:003.02
      2026-03-13 22:003.03
      2026-03-13 23:003.01
      2026-03-14 00:002.96
      2026-03-14 01:002.9
      2026-03-14 02:002.83
      2026-03-14 03:002.82
      2026-03-14 04:002.85
      2026-03-14 05:002.9
      2026-03-14 06:002.95
      2026-03-14 07:003
      2026-03-14 08:003.04
      2026-03-14 09:003.06
      2026-03-14 10:003.07
      2026-03-14 11:003.06
      2026-03-14 12:003.03
      2026-03-14 13:002.99
      2026-03-14 14:002.98
      2026-03-14 15:002.98
      2026-03-14 16:003
      2026-03-14 17:003.05
      2026-03-14 18:003.1
      2026-03-14 19:003.14
      2026-03-14 20:003.19
      2026-03-14 21:003.22
      2026-03-14 22:003.25
      2026-03-14 23:003.26
      2026-03-15 00:003.25
      2026-03-15 01:003.21
      2026-03-15 02:003.15
      2026-03-15 03:003.08
      2026-03-15 04:003.02
      2026-03-15 05:003.01
      2026-03-15 06:003.02
      2026-03-15 07:003.06
      2026-03-15 08:003.09
      2026-03-15 09:003.13
      2026-03-15 10:003.16
      2026-03-15 11:003.16
      2026-03-15 12:003.13
      2026-03-15 13:003.06
      2026-03-15 14:002.99
      2026-03-15 15:002.96
      2026-03-15 16:002.97
      2026-03-15 17:003.02
      2026-03-15 18:003.07
      2026-03-15 19:003.11
      2026-03-15 20:003.15
      2026-03-15 21:003.17
      2026-03-15 22:003.2
      2026-03-15 23:003.22
      2026-03-16 00:003.22
      2026-03-16 01:003.19
      2026-03-16 02:003.12
      2026-03-16 03:003
      2026-03-16 04:002.9
      2026-03-16 05:002.88
      2026-03-16 06:002.93
      2026-03-16 07:003
      2026-03-16 08:003.05
      2026-03-16 09:003.08
      2026-03-16 10:003.09
      2026-03-16 11:003.08
      2026-03-16 12:003.04
      2026-03-16 13:002.93
      2026-03-16 14:002.74
      2026-03-16 15:002.6
      2026-03-16 16:002.59
      2026-03-16 17:002.68
      2026-03-16 18:002.79
      2026-03-16 19:002.87
      2026-03-16 20:002.93
      2026-03-16 21:002.98
      2026-03-16 22:003.01
      2026-03-16 23:003.03
      2026-03-17 00:003.03
      2026-03-17 01:002.99
      2026-03-17 02:002.84
      2026-03-17 03:002.57
      2026-03-17 04:002.37
      2026-03-17 05:002.38
      2026-03-17 06:002.52
      2026-03-17 07:002.66
      2026-03-17 08:002.76
      2026-03-17 09:002.82
      2026-03-17 10:002.85
      2026-03-17 11:002.87
      2026-03-17 12:002.86
      2026-03-17 13:002.78
      2026-03-17 14:002.58
      2026-03-17 15:002.3
      2026-03-17 16:002.2
      2026-03-17 17:002.3
      2026-03-17 18:002.46
      2026-03-17 19:002.6
      2026-03-17 20:002.7
      2026-03-17 21:002.77
      2026-03-17 22:002.82
      2026-03-17 23:002.85
      2026-03-18 00:002.87
      2026-03-18 01:002.84
      2026-03-18 02:002.71
      2026-03-18 03:002.41
      2026-03-18 04:002.1
      2026-03-18 05:002.06
      2026-03-18 06:002.22
      2026-03-18 07:002.41
      2026-03-18 08:002.54
      2026-03-18 09:002.64
      2026-03-18 10:002.71
      2026-03-18 11:002.75
      2026-03-18 12:002.77
      2026-03-18 13:002.75
      2026-03-18 14:002.62
      2026-03-18 15:002.32
      2026-03-18 16:002.03
      2026-03-18 17:001.99
      2026-03-18 18:002.16
      2026-03-18 19:002.35
      2026-03-18 20:002.49
      2026-03-18 21:002.59
      2026-03-18 22:002.67
      2026-03-18 23:002.72
      2026-03-19 00:002.75
      2026-03-19 01:002.76
      2026-03-19 02:002.67
      2026-03-19 03:002.4
      2026-03-19 04:002.05
      2026-03-19 05:001.88
      2026-03-19 06:001.98
      2026-03-19 07:002.19
      2026-03-19 08:002.38
      2026-03-19 09:002.5
      2026-03-19 10:002.59
      2026-03-19 11:002.65
      2026-03-19 12:002.69
      2026-03-19 13:002.72
      2026-03-19 14:002.68
      2026-03-19 15:002.5
      2026-03-19 16:002.17
      2026-03-19 17:001.93
      2026-03-19 18:001.95
      2026-03-19 19:002.13
      2026-03-19 20:002.33
      2026-03-19 21:002.46
      2026-03-19 22:002.54
      2026-03-19 23:002.61
      2026-03-20 00:002.66
      2026-03-20 01:002.7
      2026-03-20 02:002.67
      2026-03-20 03:002.47
      2026-03-20 04:002.12
      2026-03-20 05:001.8
      2026-03-20 06:001.78
      2026-03-20 07:001.98
      2026-03-20 08:002.23
      2026-03-20 09:002.41
      2026-03-20 10:002.53
      2026-03-20 11:002.61
      2026-03-20 12:002.68
      2026-03-20 13:002.73
      2026-03-20 14:002.73
      2026-03-20 15:002.63
      2026-03-20 16:002.35
      2026-03-20 17:002.06
      2026-03-20 18:001.99
      2026-03-20 19:002.13
      2026-03-20 20:002.32
      2026-03-20 21:002.47
      2026-03-20 22:002.57
      2026-03-20 23:002.65
      2026-03-21 00:002.7
      2026-03-21 01:002.73
      2026-03-21 02:002.68
      2026-03-21 03:002.48
      2026-03-21 04:002.1
      2026-03-21 05:001.78
      2026-03-21 06:001.76
      2026-03-21 07:001.97
      2026-03-21 08:002.22
      2026-03-21 09:002.4
      2026-03-21 10:002.52
      2026-03-21 11:002.61
      2026-03-21 12:002.68
      2026-03-21 13:002.73
      2026-03-21 14:002.76
      2026-03-21 15:002.76
      2026-03-21 16:002.66
      2026-03-21 17:002.4
      2026-03-21 18:002.11
      2026-03-21 19:002.02
      2026-03-21 20:002.15
      2026-03-21 21:002.33
      2026-03-21 22:002.46
      2026-03-21 23:002.55
      2026-03-22 00:002.63
      2026-03-22 01:002.68
      2026-03-22 02:002.69
      2026-03-22 03:002.63
      2026-03-22 04:002.39
      2026-03-22 05:002.02