Heat Advisory
2026-07-22T23:00:00-07:00

* WHAT...Temperatures 95 to 98 degrees F expected. * WHERE...Western and Central Columbia River Gorge and the Hood River Valley, Portland Metro Lowlands, Greater Vancouver Metro, Lower Columbia River and Cowlitz River Valleys, and East Central Willamette Valley. * WHEN...From 10 AM Tuesday to 11 PM PDT Wednesday. * IMPACTS...Hot temperatures may cause heat illnesses. * ADDITIONAL DETAILS...Smoke from fires or clouds outside of the region moving into the area could result in cooler daytime high temperatures than currently forecasted.

Zollner Creek Near Mt Angel, Or Historical Data

Historical Data


Streamflow Range


Date Average 2024 2023 2022 2021 2020 2019 2018 2017 2016 2015 2014 2013 2012 2011
01-01 36.09
01-02 25.61
01-03 62.83
01-04 40.95
01-05 36.86
01-06 28.28
01-07 37.46
01-08 26.09
01-09 28.27
01-10 48.67
01-11 103.22
01-12 127.32
01-13 89.7
01-14 77.51
01-15 53.76
01-16 43.27
01-17 37.95
01-18 73.61
01-19 121.44
01-20 94.28
01-21 56.63
01-22 39.99
01-23 22.86
01-24 33.84
01-25 80.87
01-26 82.02
01-27 65.61
01-28 64.4
01-29 54.75
01-30 81.98
01-31 71.18
02-01 56.94
02-02 77.38
02-03 59.69
02-04 50.71
02-05 32.36
02-06 25.16
02-07 27.95
02-08 32.55
02-09 30.16
02-10 35.57
02-11 49.14
02-12 69.26
02-13 75.6
02-14 46.73
02-15 53.79
02-16 55.17
02-17 55.17
02-18 61.55
02-19 98.82
02-20 81.36
02-21 67.99
02-22 49.95
02-23 45.85
02-24 48.41
02-25 56.79
02-26 39.98
02-27 31.26
02-28 26.88
02-29 11.98
03-01 44.5
03-02 46.14
03-03 23.84
03-04 25.51
03-05 45.19
03-06 67.14
03-07 36.18
03-08 19.95
03-09 16.98
03-10 31.99
03-11 24.47
03-12 17.48
03-13 25.66
03-14 49.53
03-15 89.21
03-16 93.88
03-17 75.35
03-18 62.69
03-19 110.0
03-20 79.19
03-21 56.11
03-22 29.15
03-23 30.61
03-24 32.56
03-25 33.91
03-26 23.53
03-27 15.8
03-28 14.83
03-29 33.94
03-30 29.1
03-31 23.4
04-01 20.82
04-02 34.58
04-03 30.27
04-04 22.21
04-05 22.39
04-06 22.19
04-07 32.0
04-08 37.14
04-09 33.9
04-10 22.91
04-11 8.84
04-12 34.96
04-13 31.74
04-14 31.19
04-15 96.75
04-16 53.51
04-17 41.48
04-18 36.26
04-19 24.84
04-20 18.62
04-21 20.76
04-22 15.75
04-23 12.07
04-24 14.28
04-25 20.66
04-26 15.95
04-27 35.16
04-28 35.99
04-29 28.01
04-30 16.84
05-01 9.06
05-02 6.55
05-03 5.65
05-04 5.71
05-05 5.36
05-06 9.49
05-07 22.02
05-08 37.16
05-09 4.86
05-10 32.29
05-11 16.81
05-12 8.23
05-13 5.29
05-14 7.42
05-15 20.02
05-16 17.71
05-17 9.37
05-18 7.27
05-19 5.0
05-20 4.04
05-21 2.69
05-22 2.77
05-23 3.88
05-24 3.79
05-25 4.14
05-26 4.0
05-27 5.82
05-28 5.3
05-29 4.44
05-30 4.09
05-31 3.43
06-01 3.51
06-02 3.06
06-03 3.5
06-04 3.25
06-05 3.7
06-06 3.64
06-07 3.44
06-08 3.85
06-09 4.09
06-10 4.3
06-11 15.17
06-12 39.5
06-13 34.27
06-14 26.16
06-15 13.9
06-16 7.49
06-17 5.55
06-18 4.21
06-19 4.6
06-20 3.76
06-21 3.64
06-22 2.91
06-23 2.63
06-24 2.49
06-25 2.44
06-26 2.1
06-27 2.27
06-28 2.5
06-29 2.27
06-30 2.16
07-01 2.01
07-02 1.87
07-03 1.75
07-04 0.91
07-05 1.95
07-06 1.9
07-07 1.95
07-08 1.83
07-09 1.76
07-10 1.34
07-11 1.83
07-12 1.92
07-13 1.75
07-14 1.86
07-15 1.8
07-16 1.78
07-17 1.18
07-18 1.42
07-19 1.07
07-20 1.27
07-21 1.1
07-22 1.34
07-23 1.94
07-24 2.2
07-25 2.01
07-26 2.2
07-27 2.11
07-28 1.89
07-29 2.02
07-30 1.76
07-31 1.68
08-01 1.64
08-02 0.58
08-03 1.91
08-04 1.71
08-05 1.56
08-06 1.74
08-07 1.68
08-08 1.82
08-09 1.66
08-10 1.82
08-11 1.56
08-12 1.64
08-13 1.75
08-14 1.65
08-15 1.57
08-16 1.7
08-17 1.79
08-18 1.69
08-19 1.55
08-20 1.69
08-21 1.7
08-22 0.28
08-23 2.0
08-24 1.86
08-25 1.68
08-26 1.67
08-27 1.52
08-28 1.49
08-29 1.58
08-30 1.61
08-31 1.78
09-01 1.63
09-02 1.71
09-03 1.68
09-04 1.58
09-05 1.65
09-06 2.18
09-07 1.93
09-08 2.14
09-09 2.85
09-10 1.97
09-11 1.97
09-12 2.11
09-13 2.09
09-14 2.99
09-15 3.34
09-16 3.74
09-17 3.6
09-18 3.95
09-19 5.51
09-20 5.13
09-21 5.9
09-22 8.13
09-23 8.73
09-24 3.89
09-25 3.07
09-26 3.65
09-27 6.47
09-28 5.73
09-29 7.55
09-30 11.72
10-01 12.36
10-02 11.35
10-03 7.71
10-04 5.95
10-05 5.85
10-06 5.64
10-07 5.74
10-08 4.51
10-09 5.44
10-10 5.89
10-11 5.62
10-12 8.19
10-13 7.29
10-14 5.08
10-15 3.96
10-16 4.32
10-17 6.02
10-18 6.32
10-19 4.73
10-20 6.24
10-21 4.62
10-22 5.09
10-23 31.02
10-24 19.97
10-25 7.13
10-26 6.02
10-27 7.59
10-28 5.12
10-29 9.07
10-30 13.37
10-31 6.81
11-01 9.5
11-02 9.59
11-03 9.07
11-04 7.77
11-05 18.93
11-06 17.03
11-07 24.9
11-08 26.41
11-09 17.58
11-10 13.55
11-11 13.22
11-12 28.17
11-13 12.02
11-14 15.37
11-15 15.41
11-16 40.28
11-17 29.44
11-18 27.62
11-19 36.98
11-20 145.2
11-21 50.37
11-22 40.58
11-23 27.27
11-24 31.96
11-25 28.54
11-26 48.45
11-27 40.27
11-28 27.19
11-29 33.17
11-30 40.99
12-01 37.91
12-02 40.96
12-03 49.22
12-04 72.57
12-05 55.06
12-06 36.17
12-07 24.47
12-08 87.63
12-09 173.73
12-10 174.66
12-11 155.93
12-12 158.28
12-13 53.55
12-14 61.1
12-15 65.2
12-16 113.03
12-17 156.96
12-18 201.01
12-19 36.37
12-20 27.4
12-21 69.98
12-22 104.39
12-23 112.42
12-24 109.28
12-25 121.8
12-26 145.02
12-27 116.69
12-28 77.22
12-29 57.57
12-30 87.36
12-31 62.45

Annual Peak Streamflow


Seasonal Comparison


Oceanic Nino Index