COLUMBIA--AT ST HELENS (SHNO3)

Observed    Forecast/Trend Issued: 2026-05-02 11:10 PDT
Date/Time (PDT)Velocity    Date/Time (PDT)Velocity
      2026-05-02 14:002.43
      2026-05-02 15:002.3
      2026-05-02 16:002.03
      2026-05-02 17:001.72
      2026-05-02 18:001.54
      2026-05-02 19:001.63
      2026-05-02 20:001.85
      2026-05-02 21:002.01
      2026-05-02 22:002.13
      2026-05-02 23:002.21
      2026-05-03 00:002.26
      2026-05-03 01:002.25
      2026-05-03 02:002.11
      2026-05-03 03:001.82
      2026-05-03 04:001.37
      2026-05-03 05:001.15
      2026-05-03 06:001.41
      2026-05-03 07:001.79
      2026-05-03 08:002.02
      2026-05-03 09:002.17
      2026-05-03 10:002.29
      2026-05-03 11:002.38
      2026-05-03 12:002.46
      2026-05-03 13:002.52
      2026-05-03 14:002.55
      2026-05-03 15:002.51
      2026-05-03 16:002.32
      2026-05-03 17:002.01
      2026-05-03 18:001.75
      2026-05-03 19:001.69
      2026-05-03 20:001.87
      2026-05-03 21:002.07
      2026-05-03 22:002.24
      2026-05-03 23:002.37
      2026-05-04 00:002.44
      2026-05-04 01:002.47
      2026-05-04 02:002.41
      2026-05-04 03:002.19
      2026-05-04 04:001.84
      2026-05-04 05:001.58
      2026-05-04 06:001.61
      2026-05-04 07:001.86
      2026-05-04 08:002.09
      2026-05-04 09:002.27
      2026-05-04 10:002.4
      2026-05-04 11:002.49
      2026-05-04 12:002.55
      2026-05-04 13:002.6
      2026-05-04 14:002.64
      2026-05-04 15:002.64
      2026-05-04 16:002.56
      2026-05-04 17:002.33
      2026-05-04 18:002.04
      2026-05-04 19:001.87
      2026-05-04 20:001.91
      2026-05-04 21:002.05
      2026-05-04 22:002.22
      2026-05-04 23:002.35
      2026-05-05 00:002.43
      2026-05-05 01:002.47
      2026-05-05 02:002.46
      2026-05-05 03:002.35
      2026-05-05 04:002.09
      2026-05-05 05:001.76
      2026-05-05 06:001.63
      2026-05-05 07:001.76
      2026-05-05 08:001.98
      2026-05-05 09:002.18
      2026-05-05 10:002.34
      2026-05-05 11:002.44
      2026-05-05 12:002.51
      2026-05-05 13:002.57
      2026-05-05 14:002.61
      2026-05-05 15:002.64
      2026-05-05 16:002.62
      2026-05-05 17:002.49
      2026-05-05 18:002.25
      2026-05-05 19:002.03
      2026-05-05 20:001.95
      2026-05-05 21:002.01
      2026-05-05 22:002.16
      2026-05-05 23:002.3
      2026-05-06 00:002.39
      2026-05-06 01:002.44
      2026-05-06 02:002.47
      2026-05-06 03:002.43
      2026-05-06 04:002.25
      2026-05-06 05:001.96
      2026-05-06 06:001.73
      2026-05-06 07:001.72
      2026-05-06 08:001.91
      2026-05-06 09:002.13
      2026-05-06 10:002.31
      2026-05-06 11:002.43
      2026-05-06 12:002.52
      2026-05-06 13:002.59
      2026-05-06 14:002.65
      2026-05-06 15:002.69
      2026-05-06 16:002.72
      2026-05-06 17:002.69
      2026-05-06 18:002.56
      2026-05-06 19:002.33
      2026-05-06 20:002.16
      2026-05-06 21:002.12
      2026-05-06 22:002.2
      2026-05-06 23:002.31
      2026-05-07 00:002.41
      2026-05-07 01:002.48
      2026-05-07 02:002.52
      2026-05-07 03:002.54
      2026-05-07 04:002.47
      2026-05-07 05:002.29
      2026-05-07 06:002.06
      2026-05-07 07:001.91
      2026-05-07 08:001.95
      2026-05-07 09:002.11
      2026-05-07 10:002.29
      2026-05-07 11:002.43
      2026-05-07 12:002.52
      2026-05-07 13:002.6
      2026-05-07 14:002.67
      2026-05-07 15:002.73
      2026-05-07 16:002.79
      2026-05-07 17:002.8
      2026-05-07 18:002.73
      2026-05-07 19:002.55
      2026-05-07 20:002.33
      2026-05-07 21:002.22
      2026-05-07 22:002.22
      2026-05-07 23:002.3
      2026-05-08 00:002.38
      2026-05-08 01:002.46
      2026-05-08 02:002.51
      2026-05-08 03:002.54
      2026-05-08 04:002.55
      2026-05-08 05:002.5
      2026-05-08 06:002.32
      2026-05-08 07:002.12
      2026-05-08 08:002.03
      2026-05-08 09:002.08
      2026-05-08 10:002.22
      2026-05-08 11:002.36
      2026-05-08 12:002.47
      2026-05-08 13:002.55
      2026-05-08 14:002.63
      2026-05-08 15:002.71
      2026-05-08 16:002.78
      2026-05-08 17:002.82
      2026-05-08 18:002.79
      2026-05-08 19:002.7
      2026-05-08 20:002.52
      2026-05-08 21:002.34
      2026-05-08 22:002.27
      2026-05-08 23:002.3
      2026-05-09 00:002.37
      2026-05-09 01:002.44
      2026-05-09 02:002.48
      2026-05-09 03:002.52
      2026-05-09 04:002.55
      2026-05-09 05:002.55
      2026-05-09 06:002.48
      2026-05-09 07:002.33
      2026-05-09 08:002.17
      2026-05-09 09:002.1
      2026-05-09 10:002.16
      2026-05-09 11:002.28
      2026-05-09 12:002.4
      2026-05-09 13:002.48
      2026-05-09 14:002.54
      2026-05-09 15:002.6
      2026-05-09 16:002.65
      2026-05-09 17:002.69
      2026-05-09 18:002.72
      2026-05-09 19:002.73
      2026-05-09 20:002.66
      2026-05-09 21:002.49
      2026-05-09 22:002.26
      2026-05-09 23:002.12
      2026-05-10 00:002.09
      2026-05-10 01:002.17
      2026-05-10 02:002.29
      2026-05-10 03:002.39
      2026-05-10 04:002.46
      2026-05-10 05:002.5
      2026-05-10 06:002.51
      2026-05-10 07:002.48
      2026-05-10 08:002.38
      2026-05-10 09:002.23
      2026-05-10 10:002.12
      2026-05-10 11:002.1
      2026-05-10 12:002.17
      2026-05-10 13:002.28
      2026-05-10 14:002.38
      2026-05-10 15:002.46
      2026-05-10 16:002.51
      2026-05-10 17:002.56
      2026-05-10 18:002.6
      2026-05-10 19:002.62
      2026-05-10 20:002.6
      2026-05-10 21:002.51
      2026-05-10 22:002.33
      2026-05-10 23:002.13
      2026-05-11 00:002
      2026-05-11 01:002.01
      2026-05-11 02:002.11
      2026-05-11 03:002.25
      2026-05-11 04:002.38
      2026-05-11 05:002.46
      2026-05-11 06:002.51
      2026-05-11 07:002.53
      2026-05-11 08:002.52
      2026-05-11 09:002.42
      2026-05-11 10:002.27
      2026-05-11 11:002.14
      2026-05-11 12:002.12
      2026-05-11 13:002.19
      2026-05-11 14:002.3
      2026-05-11 15:002.41
      2026-05-11 16:002.48
      2026-05-11 17:002.54
      2026-05-11 18:002.59
      2026-05-11 19:002.63
      2026-05-11 20:002.66
      2026-05-11 21:002.64
      2026-05-11 22:002.49
      2026-05-11 23:002.21
      2026-05-12 00:002
      2026-05-12 01:001.94
      2026-05-12 02:002.04
      2026-05-12 03:002.21
      2026-05-12 04:002.36
      2026-05-12 05:002.47