COLUMBIA--AT ST HELENS (SHNO3)

Observed    Forecast/Trend Issued: 2026-07-17 10:19 PDT
Date/Time (PDT)Velocity    Date/Time (PDT)Velocity
      2026-07-17 14:002.02
      2026-07-17 15:002.04
      2026-07-17 16:001.94
      2026-07-17 17:001.54
      2026-07-17 18:000.65
      2026-07-17 19:00-0.21
      2026-07-17 20:00-0.31
      2026-07-17 21:000.39
      2026-07-17 22:001.31
      2026-07-17 23:001.75
      2026-07-18 00:001.82
      2026-07-18 01:001.83
      2026-07-18 02:001.85
      2026-07-18 03:001.84
      2026-07-18 04:001.67
      2026-07-18 05:001.11
      2026-07-18 06:000.24
      2026-07-18 07:00-0.3
      2026-07-18 08:00-0.04
      2026-07-18 09:000.81
      2026-07-18 10:001.52
      2026-07-18 11:001.77
      2026-07-18 12:001.81
      2026-07-18 13:001.85
      2026-07-18 14:001.91
      2026-07-18 15:001.96
      2026-07-18 16:001.93
      2026-07-18 17:001.69
      2026-07-18 18:001
      2026-07-18 19:000.04
      2026-07-18 20:00-0.49
      2026-07-18 21:00-0.2
      2026-07-18 22:000.69
      2026-07-18 23:001.48
      2026-07-19 00:001.75
      2026-07-19 01:001.78
      2026-07-19 02:001.8
      2026-07-19 03:001.84
      2026-07-19 04:001.83
      2026-07-19 05:001.65
      2026-07-19 06:001.13
      2026-07-19 07:000.39
      2026-07-19 08:00-0.01
      2026-07-19 09:000.32
      2026-07-19 10:001.07
      2026-07-19 11:001.61
      2026-07-19 12:001.77
      2026-07-19 13:001.82
      2026-07-19 14:001.86
      2026-07-19 15:001.9
      2026-07-19 16:001.91
      2026-07-19 17:001.79
      2026-07-19 18:001.33
      2026-07-19 19:000.48
      2026-07-19 20:00-0.31
      2026-07-19 21:00-0.46
      2026-07-19 22:000.11
      2026-07-19 23:001.06
      2026-07-20 00:001.65
      2026-07-20 01:001.78
      2026-07-20 02:001.81
      2026-07-20 03:001.84
      2026-07-20 04:001.87
      2026-07-20 05:001.85
      2026-07-20 06:001.68
      2026-07-20 07:001.22
      2026-07-20 08:000.65
      2026-07-20 09:000.41
      2026-07-20 10:000.72
      2026-07-20 11:001.26
      2026-07-20 12:001.63
      2026-07-20 13:001.76
      2026-07-20 14:001.81
      2026-07-20 15:001.84
      2026-07-20 16:001.86
      2026-07-20 17:001.8
      2026-07-20 18:001.51
      2026-07-20 19:000.84
      2026-07-20 20:000.06
      2026-07-20 21:00-0.34
      2026-07-20 22:00-0.09
      2026-07-20 23:000.68
      2026-07-21 00:001.43
      2026-07-21 01:001.74
      2026-07-21 02:001.8
      2026-07-21 03:001.83
      2026-07-21 04:001.87
      2026-07-21 05:001.9
      2026-07-21 06:001.89
      2026-07-21 07:001.75
      2026-07-21 08:001.41
      2026-07-21 09:001
      2026-07-21 10:000.85
      2026-07-21 11:001.04
      2026-07-21 12:001.38
      2026-07-21 13:001.64
      2026-07-21 14:001.76
      2026-07-21 15:001.81
      2026-07-21 16:001.83
      2026-07-21 17:001.8
      2026-07-21 18:001.63
      2026-07-21 19:001.19
      2026-07-21 20:000.51
      2026-07-21 21:00-0.04
      2026-07-21 22:00-0.08
      2026-07-21 23:000.42
      2026-07-22 00:001.17
      2026-07-22 01:001.63
      2026-07-22 02:001.75
      2026-07-22 03:001.8
      2026-07-22 04:001.85
      2026-07-22 05:001.89
      2026-07-22 06:001.92
      2026-07-22 07:001.91
      2026-07-22 08:001.8
      2026-07-22 09:001.56
      2026-07-22 10:001.24
      2026-07-22 11:001.05
      2026-07-22 12:001.12
      2026-07-22 13:001.35
      2026-07-22 14:001.57
      2026-07-22 15:001.7
      2026-07-22 16:001.74
      2026-07-22 17:001.74
      2026-07-22 18:001.66
      2026-07-22 19:001.41
      2026-07-22 20:000.94
      2026-07-22 21:000.37
      2026-07-22 22:000.04
      2026-07-22 23:000.19
      2026-07-23 00:000.76
      2026-07-23 01:001.34
      2026-07-23 02:001.64
      2026-07-23 03:001.74
      2026-07-23 04:001.79
      2026-07-23 05:001.84
      2026-07-23 06:001.89
      2026-07-23 07:001.92
      2026-07-23 08:001.93
      2026-07-23 09:001.86
      2026-07-23 10:001.68
      2026-07-23 11:001.38
      2026-07-23 12:001.11
      2026-07-23 13:001.06
      2026-07-23 14:001.22
      2026-07-23 15:001.45
      2026-07-23 16:001.6
      2026-07-23 17:001.66
      2026-07-23 18:001.66
      2026-07-23 19:001.57
      2026-07-23 20:001.35
      2026-07-23 21:000.93
      2026-07-23 22:000.44
      2026-07-23 23:000.16
      2026-07-24 00:000.34
      2026-07-24 01:000.86
      2026-07-24 02:001.36
      2026-07-24 03:001.62
      2026-07-24 04:001.73
      2026-07-24 05:001.79
      2026-07-24 06:001.84
      2026-07-24 07:001.89
      2026-07-24 08:001.93
      2026-07-24 09:001.94
      2026-07-24 10:001.9
      2026-07-24 11:001.7
      2026-07-24 12:001.28
      2026-07-24 13:000.84
      2026-07-24 14:000.75
      2026-07-24 15:001.03
      2026-07-24 16:001.4
      2026-07-24 17:001.61
      2026-07-24 18:001.69
      2026-07-24 19:001.7
      2026-07-24 20:001.62
      2026-07-24 21:001.4
      2026-07-24 22:000.96
      2026-07-24 23:000.43
      2026-07-25 00:000.13
      2026-07-25 01:000.34
      2026-07-25 02:000.91
      2026-07-25 03:001.42
      2026-07-25 04:001.65
      2026-07-25 05:001.74
      2026-07-25 06:001.79
      2026-07-25 07:001.85
      2026-07-25 08:001.91
      2026-07-25 09:001.95
      2026-07-25 10:001.97
      2026-07-25 11:001.9
      2026-07-25 12:001.66
      2026-07-25 13:001.15
      2026-07-25 14:000.61
      2026-07-25 15:000.5
      2026-07-25 16:000.87
      2026-07-25 17:001.33
      2026-07-25 18:001.59
      2026-07-25 19:001.67
      2026-07-25 20:001.67
      2026-07-25 21:001.6
      2026-07-25 22:001.36
      2026-07-25 23:000.89
      2026-07-26 00:000.32
      2026-07-26 01:00-0.01
      2026-07-26 02:000.19
      2026-07-26 03:000.78
      2026-07-26 04:001.34
      2026-07-26 05:001.62
      2026-07-26 06:001.72
      2026-07-26 07:001.77
      2026-07-26 08:001.83
      2026-07-26 09:001.89
      2026-07-26 10:001.94
      2026-07-26 11:001.95
      2026-07-26 12:001.88
      2026-07-26 13:001.6
      2026-07-26 14:000.98
      2026-07-26 15:000.34
      2026-07-26 16:000.18
      2026-07-26 17:000.64
      2026-07-26 18:001.25
      2026-07-26 19:001.58
      2026-07-26 20:001.67
      2026-07-26 21:001.66
      2026-07-26 22:001.58
      2026-07-26 23:001.32
      2026-07-27 00:000.8
      2026-07-27 01:000.17
      2026-07-27 02:00-0.18
      2026-07-27 03:000.04
      2026-07-27 04:000.69
      2026-07-27 05:001.34