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: Aug 15 2026 at 7:17 AM PDT Next Issuance: Aug 16 2026 at 9:00 AM PDT width="16%">
Action/Monitor: 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) 08/15/2026 at 07:17 AM PDT Date & Time of Maximum Observed: 08/10/2026 at 12:00 PM PDT 31.12 Feet 593 cfs & Time of Maximum Forecast: 08/15/2026 at 08:00 AM PDT 30.70 Feet 477 cfs Stage (Feet) Flow (cfs) Trend Observed Status ------------------------------------------------------------- 31.08 581 Normal 31.09 584 + Normal 31.09 584 0 Normal 31.08 581 - Normal 31.09 584 + Normal 31.12 593 + Normal 31.10 587 - Normal 31.09 584 - Normal 31.10 587 + Normal 31.08 581 - Normal 31.08 581 0 Normal 31.08 581 0 Normal 31.08 581 0 Normal 31.07 578 - Normal 31.06 575 - Normal 31.04 570 - Normal 31.04 570 0 Normal 31.03 567 - Normal 31.01 561 - Normal 31.00 559 - Normal 30.99 556 - Normal 30.96 547 - Normal 30.95 545 - Normal 30.91 534 - Normal 30.89 528 - Normal 30.83 512 - Normal 30.83 512 0 Normal 30.82 509 - Normal 30.80 503 - Normal 30.83 512 + Normal 30.83 512 0 Normal 30.81 506 - Normal 30.83 512 + Normal 30.82 509 - Normal 30.82 509 0 Normal 30.81 506 - Normal 30.81 506 0 Normal 30.79 501 - Normal 30.79 501 0 Normal 30.80 503 + Normal 30.79 501 - Normal 30.77 495 - Normal 30.78 498 + Normal 30.77 495 - Normal 30.77 495 0 Normal 30.78 498 + Normal 30.77 495 - Normal 30.75 490 - Normal 30.74 487 - Normal 30.75 490 + Normal 30.76 493 + Normal 30.76 493 0 Normal 30.77 495 + Normal 30.77 495 0 Normal 30.78 498 + Normal 30.77 495 - Normal 30.76 493 - Normal 30.76 493 0 Normal 30.75 490 - Normal 30.75 490 0 Normal 30.76 493 + Normal 30.77 495 + Normal 30.74 487 - Normal 30.75 490 + Normal 30.75 490 0 Normal 30.75 490 0 Normal 30.74 487 - Normal 30.74 487 0 Normal 30.74 487 0 Normal 30.74 487 0 Normal 30.74 487 0 Normal 30.74 487 0 Normal 30.76 493 + Normal 30.78 498 + Normal 30.79 501 + Normal 30.80 503 + Normal 30.79 501 - Normal 30.81 506 + Normal 30.81 506 0 Normal 30.79 501 - Normal 30.80 503 + Normal 30.80 503 0 Normal 30.78 498 - Normal 30.79 501 + Normal 30.78 498 - Normal 30.77 495 - Normal 30.76 493 - Normal 30.76 493 0 Normal 30.75 490 - Normal 30.74 487 - Normal 30.74 487 0 Normal 30.74 487 0 Normal 30.74 487 0 Normal 30.74 487 0 Normal 30.74 487 0 Normal 30.74 487 0 Normal 30.75 490 + Normal 30.78 498 + Normal 30.80 503 + Normal 30.82 509 + Normal 30.84 514 + Normal 30.85 517 + Normal 30.86 520 + Normal 30.87 523 + Normal 30.87 523 0 Normal 30.88 525 + Normal 30.87 523 - Normal 30.84 514 - Normal 30.82 509 - Normal 30.81 506 - Normal 30.79 501 - Normal 30.77 495 - Normal 30.77 495 0 Normal 30.76 493 - Normal 30.74 487 - Normal 30.73 485 - Normal 30.72 482 - Normal 30.70 477 - Normal 30.69 474 - Normal 30.69 474 0 Normal 30.70 477 + Normal Stage (Feet) Flow (cfs) Trend Forecast Status ------------------------------------------------------------- 30.70 477 Normal 30.70 477 0 Normal 30.69 474 - Normal 30.69 474 0 Normal 30.69 474 0 Normal 30.69 474 0 Normal 30.68 472 - Normal 30.68 472 0 Normal 30.68 472 0 Normal 30.68 472 0 Normal 30.68 472 0 Normal 30.67 469 - Normal 30.67 469 0 Normal 30.67 469 0 Normal 30.67 469 0 Normal 30.67 469 0 Normal 30.67 469 0 Normal 30.67 469 0 Normal 30.67 469 0 Normal 30.66 466 - Normal 30.66 466 0 Normal 30.66 466 0 Normal 30.66 466 0 Normal 30.66 466 0 Normal 30.66 466 0 Normal 30.66 466 0 Normal 30.66 466 0 Normal 30.66 466 0 Normal 30.66 466 0 Normal 30.66 466 0 Normal 30.66 466 0 Normal 30.65 464 - Normal 30.65 464 0 Normal 30.65 464 0 Normal 30.65 464 0 Normal 30.65 464 0 Normal 30.65 464 0 Normal 30.65 464 0 Normal 30.65 464 0 Normal 30.64 461 - Normal 30.64 461 0 Normal 30.64 461 0 Normal 30.64 461 0 Normal 30.64 461 0 Normal 30.64 461 0 Normal 30.64 461 0 Normal 30.64 461 0 Normal 30.63 458 - Normal 30.63 458 0 Normal 30.63 458 0 Normal 30.63 458 0 Normal 30.63 458 0 Normal 30.62 456 - Normal 30.62 456 0 Normal 30.62 456 0 Normal 30.62 456 0 Normal 30.62 456 0 Normal 30.62 456 0 Normal 30.61 453 - Normal 30.61 453 0 Normal 30.61 453 0 Normal 30.61 453 0 Normal 30.61 453 0 Normal 30.61 453 0 Normal 30.61 453 0 Normal 30.60 451 - Normal 30.60 451 0 Normal 30.60 451 0 Normal 30.60 451 0 Normal 30.60 451 0 Normal 30.60 451 0 Normal 30.59 448 - Normal 30.59 448 0 Normal 30.59 448 0 Normal 30.59 448 0 Normal 30.59 448 0 Normal 30.59 448 0 Normal 30.59 448 0 Normal 30.59 448 0 Normal 30.59 448 0 Normal 30.59 448 0 Normal 30.59 448 0 Normal 30.59 448 0 Normal 30.58 445 - Normal 30.58 445 0 Normal 30.58 445 0 Normal 30.58 445 0 Normal 30.58 445 0 Normal 30.58 445 0 Normal 30.58 445 0 Normal 30.58 445 0 Normal 30.58 445 0 Normal 30.58 445 0 Normal 30.58 445 0 Normal 30.58 445 0 Normal 30.58 445 0 Normal 30.57 443 - Normal 30.57 443 0 Normal 30.57 443 0 Normal 30.57 443 0 Normal 30.57 443 0 Normal 30.57 443 0 Normal 30.57 443 0 Normal 30.57 443 0 Normal 30.57 443 0 Normal 30.57 443 0 Normal 30.57 443 0 Normal 30.57 443 0 Normal 30.57 443 0 Normal 30.57 443 0 Normal 30.57 443 0 Normal 30.57 443 0 Normal 30.57 443 0 Normal 30.57 443 0 Normal 30.57 443 0 Normal 30.57 443 0 Normal 30.57 443 0 Normal 30.57 443 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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