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

* WHAT...Hot conditions with high temperatures up to 90 to 95 degrees expected and low temperatures from 58 to 60 degrees. This will pose a moderate risk of heat-related illness. * WHERE...Foothills of the Western and Southern Olympic Peninsula, Middle Chehalis River Valley, Southern Hood Canal, Foothills and Valleys of Thurston and Lewis Counties, Lowlands of Lewis and Southern Thurston Counties, and Olympia and Southern Puget Sound. * WHEN...From 10 AM Tuesday to 11 PM PDT Wednesday. * IMPACTS...Heat will significantly increase the risk of heat-related illnesses for those who are sensitive to heat, especially those without effective cooling or adequate hydration.

North Fork Skokomish River Near Potlatch, Wa Historical Data

Historical Data


Streamflow Range


Date Average 2026 2025 2024 2023 2022 2021 2020 2019 2018 2017 2016 2015 2014 2013 2012 2011
01-01 468.08
01-02 457.27
01-03 583.42
01-04 535.75
01-05 585.45
01-06 546.58
01-07 784.18
01-08 589.92
01-09 664.92
01-10 632.75
01-11 576.75
01-12 812.45
01-13 762.83
01-14 566.33
01-15 482.25
01-16 508.73
01-17 485.46
01-18 559.45
01-19 581.31
01-20 504.31
01-21 480.5
01-22 597.77
01-23 575.75
01-24 660.54
01-25 660.92
01-26 622.09
01-27 561.58
01-28 543.62
01-29 531.85
01-30 544.07
01-31 486.79
02-01 509.77
02-02 518.08
02-03 541.5
02-04 433.64
02-05 400.08
02-06 482.08
02-07 474.15
02-08 460.33
02-09 407.36
02-10 374.17
02-11 380.91
02-12 469.08
02-13 447.69
02-14 439.08
02-15 426.93
02-16 415.54
02-17 397.85
02-18 468.85
02-19 444.14
02-20 397.69
02-21 344.08
02-22 358.93
02-23 358.15
02-24 339.83
02-25 388.8
02-26 331.83
02-27 340.29
02-28 354.79
02-29 453.0
03-01 418.14
03-02 382.86
03-03 368.29
03-04 353.71
03-05 352.36
03-06 383.43
03-07 387.36
03-08 347.57
03-09 388.29
03-10 414.5
03-11 355.21
03-12 360.5
03-13 356.14
03-14 355.93
03-15 349.14
03-16 393.71
03-17 344.14
03-18 336.5
03-19 321.67
03-20 318.07
03-21 350.87
03-22 381.86
03-23 307.6
03-24 324.87
03-25 315.93
03-26 307.27
03-27 301.93
03-28 298.4
03-29 340.67
03-30 357.8
03-31 321.29
04-01 304.93
04-02 291.53
04-03 282.07
04-04 286.73
04-05 286.07
04-06 274.21
04-07 301.87
04-08 312.4
04-09 318.85
04-10 325.53
04-11 305.53
04-12 293.5
04-13 289.07
04-14 314.86
04-15 314.0
04-16 294.46
04-17 276.92
04-18 280.85
04-19 281.62
04-20 281.46
04-21 283.43
04-22 282.5
04-23 282.14
04-24 298.5
04-25 300.54
04-26 288.14
04-27 284.93
04-28 273.5
04-29 275.57
04-30 267.21
05-01 265.0
05-02 260.93
05-03 254.21
05-04 270.2
05-05 287.53
05-06 269.4
05-07 261.2
05-08 269.43
05-09 270.87
05-10 258.57
05-11 257.53
05-12 253.0
05-13 258.93
05-14 255.31
05-15 252.0
05-16 259.23
05-17 259.21
05-18 257.13
05-19 255.0
05-20 256.0
05-21 257.36
05-22 254.53
05-23 250.73
05-24 247.93
05-25 247.67
05-26 247.67
05-27 248.8
05-28 248.53
05-29 249.8
05-30 244.13
05-31 241.33
06-01 240.2
06-02 234.36
06-03 236.73
06-04 236.8
06-05 234.14
06-06 233.5
06-07 231.79
06-08 234.29
06-09 235.07
06-10 237.4
06-11 235.73
06-12 238.14
06-13 235.43
06-14 236.14
06-15 232.2
06-16 230.53
06-17 229.27
06-18 239.6
06-19 244.71
06-20 243.93
06-21 237.79
06-22 225.43
06-23 219.79
06-24 211.43
06-25 205.86
06-26 206.43
06-27 204.14
06-28 203.14
06-29 200.57
06-30 200.86
07-01 200.0
07-02 197.5
07-03 195.57
07-04 183.69
07-05 176.87
07-06 173.33
07-07 170.0
07-08 167.57
07-09 166.71
07-10 167.07
07-11 164.14
07-12 159.46
07-13 154.21
07-14 150.33
07-15 148.07
07-16 146.5
07-17 148.07
07-18 147.57
07-19 145.4
07-20 144.79
07-21 144.36
07-22 142.46
07-23 143.07
07-24 143.86
07-25 143.93
07-26 144.36
07-27 143.79
07-28 143.86
07-29 142.71
07-30 145.85
07-31 143.71
08-01 141.58
08-02 141.23
08-03 143.14
08-04 143.71
08-05 142.0
08-06 141.14
08-07 141.5
08-08 144.0
08-09 143.38
08-10 143.33
08-11 142.71
08-12 140.07
08-13 140.79
08-14 140.86
08-15 141.79
08-16 142.54
08-17 140.38
08-18 143.33
08-19 141.23
08-20 141.85
08-21 140.54
08-22 139.42
08-23 139.43
08-24 142.92
08-25 142.23
08-26 139.29
08-27 139.14
08-28 138.21
08-29 145.29
08-30 151.86
08-31 156.38
09-01 160.21
09-02 172.86
09-03 171.79
09-04 172.43
09-05 172.36
09-06 174.21
09-07 173.29
09-08 171.86
09-09 171.79
09-10 170.93
09-11 169.57
09-12 169.93
09-13 168.69
09-14 169.64
09-15 170.57
09-16 170.57
09-17 168.57
09-18 175.0
09-19 176.07
09-20 174.57
09-21 178.36
09-22 179.08
09-23 182.0
09-24 187.07
09-25 190.21
09-26 195.14
09-27 204.07
09-28 197.64
09-29 207.36
09-30 249.62
10-01 215.58
10-02 213.46
10-03 213.69
10-04 213.33
10-05 212.93
10-06 213.14
10-07 217.43
10-08 210.29
10-09 221.29
10-10 215.07
10-11 218.07
10-12 230.36
10-13 227.46
10-14 277.36
10-15 275.85
10-16 305.23
10-17 286.38
10-18 270.79
10-19 261.38
10-20 265.0
10-21 283.23
10-22 302.92
10-23 308.71
10-24 286.43
10-25 377.07
10-26 388.54
10-27 320.14
10-28 306.62
10-29 319.29
10-30 364.43
10-31 420.69
11-01 378.79
11-02 398.54
11-03 400.92
11-04 410.57
11-05 411.57
11-06 409.77
11-07 428.85
11-08 445.69
11-09 433.0
11-10 438.54
11-11 376.31
11-12 432.46
11-13 543.46
11-14 527.0
11-15 500.29
11-16 484.79
11-17 454.77
11-18 416.38
11-19 484.54
11-20 592.54
11-21 510.57
11-22 757.77
11-23 593.77
11-24 502.69
11-25 535.62
11-26 463.0
11-27 582.75
11-28 523.38
11-29 544.14
11-30 493.79
12-01 564.71
12-02 554.07
12-03 497.14
12-04 536.14
12-05 611.43
12-06 605.54
12-07 677.21
12-08 705.93
12-09 420.23
12-10 703.21
12-11 756.57
12-12 707.14
12-13 690.64
12-14 487.5
12-15 419.85
12-16 449.92
12-17 633.33
12-18 584.58
12-19 606.31
12-20 571.67
12-21 622.64
12-22 602.27
12-23 507.0
12-24 471.83
12-25 490.31
12-26 505.92
12-27 542.58
12-28 513.91
12-29 542.73
12-30 510.18
12-31 466.0

Annual Peak Streamflow


Seasonal Comparison


Oceanic Nino Index