CNRFC - Hydrology - River Guidance - Tabular Data

Location:

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KLAMATHRUSNAPSOUTHBAYSALINASSOCALSANDIEGOUPRSACLWRSACFTHRYUBAAMERICANCAPUTAHTULARESANJOAQNSANJOAQESIERRAHUMBOLDT = window.location.search; = new URLSearchParams(queryString); = window.location.href.split('?')[0] + "?" + urlParams.toString(); class="head">SAN JOAQUIN RIVER - PATTERSON (PATC1)
Latitude: 37.49º N Longitude: 121.08º W Elevation: 97 Feet Forecast Type: Official Location
Location: Stanislaus County in California Bulletin Group: San Joaquin River Group: San Joaquin
Issuance Time: Oct 21 2026 at 7:30 AM PDT Next Issuance: Oct 22 2026 at 9:00 AM PDT width="16%">
Action: 48.0 Feet Minor Flood: 54.7 Feet Moderate Flood: 57.3 Feet Major Flood: 58.3 Feet

# Tabular Observed and Forecast Hydrograph Information Joaquin River - Patterson (PATC1) 10/21/2026 at 07:30 AM PDT Date & Time of Maximum Observed: 10/18/2026 at 05:00 PM PDT 31.05 Feet 573 cfs & Time of Maximum Forecast: 10/26/2026 at 02:00 AM PDT 31.24 Feet 627 cfs Stage (Feet) Flow (cfs) Trend Observed Status ------------------------------------------------------------- 30.87 523 Normal 30.86 520 - Normal 30.87 523 + Normal 30.87 523 0 Normal 30.88 525 + Normal 30.88 525 0 Normal 30.89 528 + Normal 30.90 531 + Normal 30.90 531 0 Normal 30.89 528 - Normal 30.89 528 0 Normal 30.90 531 + Normal 30.89 528 - Normal 30.89 528 0 Normal 30.89 528 0 Normal 30.88 525 - Normal 30.88 525 0 Normal 30.87 523 - Normal 30.86 520 - Normal 30.86 520 0 Normal 30.86 520 0 Normal 30.85 517 - Normal 30.84 514 - Normal 30.84 514 0 Normal 30.84 514 0 Normal 30.83 512 - Normal 30.85 517 + Normal 30.86 520 + Normal 30.86 520 0 Normal 30.88 525 + Normal 30.89 528 + Normal 30.90 531 + Normal 30.91 534 + Normal 30.92 536 + Normal 30.93 539 + Normal 30.92 536 - Normal 30.96 547 + Normal 30.93 539 - Normal 30.92 536 - Normal 30.90 531 - Normal 30.90 531 0 Normal 30.90 531 0 Normal 30.89 528 - Normal 30.89 528 0 Normal 30.89 528 0 Normal 30.89 528 0 Normal 30.89 528 0 Normal 30.89 528 0 Normal 30.89 528 0 Normal 30.90 531 + Normal 30.92 536 + Normal 30.94 542 + Normal 30.94 542 0 Normal 30.96 547 + Normal 30.98 553 + Normal 30.99 556 + Normal 31.00 559 + Normal 31.03 567 + Normal 31.05 573 + Normal 31.04 570 - Normal 31.04 570 0 Normal 31.04 570 0 Normal 31.03 567 - Normal 31.03 567 0 Normal 31.03 567 0 Normal 31.03 567 0 Normal 31.03 567 0 Normal 31.03 567 0 Normal 31.03 567 0 Normal 31.02 564 - Normal 31.03 567 + Normal 31.03 567 0 Normal 31.02 564 - Normal 31.01 561 - Normal 31.01 561 0 Normal 31.01 561 0 Normal 31.02 564 + Normal 31.02 564 0 Normal 31.03 567 + Normal 31.02 564 - Normal 31.02 564 0 Normal 31.03 567 + Normal 31.03 567 0 Normal 31.02 564 - Normal 31.02 564 0 Normal 31.02 564 0 Normal 31.01 561 - Normal 31.01 561 0 Normal 31.01 561 0 Normal 31.00 559 - Normal 31.00 559 0 Normal 31.00 559 0 Normal 30.99 556 - Normal 30.99 556 0 Normal 30.99 556 0 Normal 30.99 556 0 Normal 30.98 553 - Normal 30.99 556 + Normal 30.96 547 - Normal 30.96 547 0 Normal 30.97 550 + Normal 30.96 547 - Normal 30.95 545 - Normal 30.96 547 + Normal 30.95 545 - Normal 30.95 545 0 Normal 30.95 545 0 Normal 30.95 545 0 Normal 30.95 545 0 Normal 30.95 545 0 Normal 30.96 547 + Normal 30.97 550 + Normal 30.98 553 + Normal 30.98 553 0 Normal 30.99 556 + Normal 31.00 559 + Normal 31.01 561 + Normal 31.00 559 - Normal 31.00 559 0 Normal 31.00 559 0 Normal 31.00 559 0 Normal Stage (Feet) Flow (cfs) Trend Forecast Status ------------------------------------------------------------- 31.01 561 Normal 31.01 561 0 Normal 31.00 559 - Normal 31.00 559 0 Normal 31.00 559 0 Normal 31.00 559 0 Normal 31.00 559 0 Normal 31.00 559 0 Normal 31.00 559 0 Normal 31.00 559 0 Normal 31.00 559 0 Normal 31.00 559 0 Normal 31.00 559 0 Normal 31.00 559 0 Normal 31.00 559 0 Normal 31.00 559 0 Normal 31.00 559 0 Normal 31.00 559 0 Normal 31.00 559 0 Normal 31.00 559 0 Normal 31.00 559 0 Normal 31.00 559 0 Normal 31.00 559 0 Normal 31.00 559 0 Normal 31.00 559 0 Normal 31.00 559 0 Normal 31.01 561 + Normal 31.01 561 0 Normal 31.01 561 0 Normal 31.01 561 0 Normal 31.01 561 0 Normal 31.01 561 0 Normal 31.02 564 + Normal 31.02 564 0 Normal 31.02 564 0 Normal 31.02 564 0 Normal 31.02 564 0 Normal 31.02 564 0 Normal 31.02 564 0 Normal 31.03 567 + Normal 31.03 567 0 Normal 31.03 567 0 Normal 31.03 567 0 Normal 31.04 570 + Normal 31.04 570 0 Normal 31.04 570 0 Normal 31.04 570 0 Normal 31.05 573 + Normal 31.05 573 0 Normal 31.05 573 0 Normal 31.05 573 0 Normal 31.06 575 + Normal 31.06 575 0 Normal 31.07 578 + Normal 31.07 578 0 Normal 31.07 578 0 Normal 31.07 578 0 Normal 31.08 581 + Normal 31.08 581 0 Normal 31.08 581 0 Normal 31.09 584 + Normal 31.09 584 0 Normal 31.09 584 0 Normal 31.09 584 0 Normal 31.10 587 + Normal 31.10 587 0 Normal 31.10 587 0 Normal 31.11 590 + Normal 31.11 590 0 Normal 31.11 590 0 Normal 31.12 593 + Normal 31.12 593 0 Normal 31.12 593 0 Normal 31.13 595 + Normal 31.13 595 0 Normal 31.14 598 + Normal 31.14 598 0 Normal 31.14 598 0 Normal 31.14 598 0 Normal 31.15 601 + Normal 31.15 601 0 Normal 31.15 601 0 Normal 31.16 604 + Normal 31.16 604 0 Normal 31.16 604 0 Normal 31.17 607 + Normal 31.17 607 0 Normal 31.17 607 0 Normal 31.17 607 0 Normal 31.18 610 + Normal 31.18 610 0 Normal 31.18 610 0 Normal 31.18 610 0 Normal 31.19 613 + Normal 31.19 613 0 Normal 31.19 613 0 Normal 31.20 616 + Normal 31.20 616 0 Normal 31.20 616 0 Normal 31.20 616 0 Normal 31.20 616 0 Normal 31.21 619 + Normal 31.21 619 0 Normal 31.21 619 0 Normal 31.21 619 0 Normal 31.22 622 + Normal 31.22 622 0 Normal 31.22 622 0 Normal 31.22 622 0 Normal 31.23 624 + Normal 31.23 624 0 Normal 31.23 624 0 Normal 31.23 624 0 Normal 31.23 624 0 Normal 31.24 627 + Normal 31.24 627 0 Normal 31.24 627 0 Normal 31.24 627 0 Normal Stages are rounded to the nearest hundredth (.01) of a foot. Flows are rounded to the nearest (1) cfs. Trends are determined using hourly change in unrounded stage and flow. Maximum Values are determined using unrounded stage and flow. End Web Content -->
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