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: Sep 17 2026 at 6:56 AM PDT Next Issuance: Sep 18 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) 09/17/2026 at 06:56 AM PDT Date & Time of Maximum Observed: 09/15/2026 at 05:00 PM PDT 30.75 Feet 490 cfs & Time of Maximum Forecast: 09/19/2026 at 04:00 PM PDT 30.57 Feet 443 cfs Stage (Feet) Flow (cfs) Trend Observed Status ------------------------------------------------------------- 30.23 359 Normal 30.25 364 + Normal 30.27 368 + Normal 30.28 371 + Normal 30.29 373 + Normal 30.30 376 + Normal 30.32 380 + Normal 30.35 388 + Normal 30.37 393 + Normal 30.38 395 + Normal 30.39 398 + Normal 30.38 395 - Normal 30.39 398 + Normal 30.39 398 0 Normal 30.39 398 0 Normal 30.40 400 + Normal 30.40 400 0 Normal 30.37 393 - Normal 30.37 393 0 Normal 30.37 393 0 Normal 30.37 393 0 Normal 30.38 395 + Normal 30.37 393 - Normal 30.38 395 + Normal 30.39 398 + Normal 30.41 402 + Normal 30.41 402 0 Normal 30.42 405 + Normal 30.44 410 + Normal 30.46 415 + Normal 30.51 428 + Normal 30.56 440 + Normal 30.56 440 0 Normal 30.61 453 + Normal 30.64 461 + Normal 30.67 469 + Normal 30.64 461 - Normal 30.66 466 + Normal 30.67 469 + Normal 30.67 469 0 Normal 30.68 472 + Normal 30.67 469 - Normal 30.68 472 + Normal 30.68 472 0 Normal 30.68 472 0 Normal 30.68 472 0 Normal 30.66 466 - Normal 30.65 464 - Normal 30.62 456 - Normal 30.59 448 - Normal 30.56 440 - Normal 30.54 435 - Normal 30.53 433 - Normal 30.51 428 - Normal 30.50 425 - Normal 30.53 433 + Normal 30.53 433 0 Normal 30.54 435 + Normal 30.56 440 + Normal 30.56 440 0 Normal 30.57 443 + Normal 30.56 440 - Normal 30.56 440 0 Normal 30.56 440 0 Normal 30.56 440 0 Normal 30.55 438 - Normal 30.54 435 - Normal 30.54 435 0 Normal 30.54 435 0 Normal 30.55 438 + Normal 30.56 440 + Normal 30.58 445 + Normal 30.61 453 + Normal 30.63 458 + Normal 30.63 458 0 Normal 30.67 469 + Normal 30.70 477 + Normal 30.70 477 0 Normal 30.73 485 + Normal 30.75 490 + Normal 30.75 490 0 Normal 30.75 490 0 Normal 30.75 490 0 Normal 30.75 490 0 Normal 30.74 487 - Normal 30.73 485 - Normal 30.72 482 - Normal 30.70 477 - Normal 30.68 472 - Normal 30.67 469 - Normal 30.66 466 - Normal 30.64 461 - Normal 30.63 458 - Normal 30.61 453 - Normal 30.59 448 - Normal 30.59 448 0 Normal 30.58 445 - Normal 30.57 443 - Normal 30.56 440 - Normal 30.51 428 - Normal 30.49 423 - Normal 30.49 423 0 Normal 30.50 425 + Normal 30.53 433 + Normal 30.56 440 + Normal 30.57 443 + Normal 30.58 445 + Normal 30.59 448 + Normal 30.60 451 + Normal 30.57 443 - Normal 30.53 433 - Normal 30.52 430 - Normal 30.51 428 - Normal 30.47 417 - Normal 30.46 415 - Normal 30.44 410 - Normal 30.42 405 - Normal 30.42 405 0 Normal 30.40 400 - Normal 30.38 395 - Normal 30.38 395 0 Normal Stage (Feet) Flow (cfs) Trend Forecast Status ------------------------------------------------------------- 30.38 395 Normal 30.38 395 0 Normal 30.38 395 0 Normal 30.38 395 0 Normal 30.38 395 0 Normal 30.38 395 0 Normal 30.38 395 0 Normal 30.38 395 0 Normal 30.38 395 0 Normal 30.38 395 0 Normal 30.38 395 0 Normal 30.38 395 0 Normal 30.38 395 0 Normal 30.38 395 0 Normal 30.38 395 0 Normal 30.39 398 + Normal 30.39 398 0 Normal 30.39 398 0 Normal 30.39 398 0 Normal 30.39 398 0 Normal 30.40 400 + Normal 30.41 402 + Normal 30.41 402 0 Normal 30.41 402 0 Normal 30.42 405 + Normal 30.43 407 + Normal 30.43 407 0 Normal 30.44 410 + Normal 30.45 412 + Normal 30.45 412 0 Normal 30.46 415 + Normal 30.46 415 0 Normal 30.47 417 + Normal 30.48 420 + Normal 30.48 420 0 Normal 30.48 420 0 Normal 30.49 423 + Normal 30.50 425 + Normal 30.50 425 0 Normal 30.51 428 + Normal 30.51 428 0 Normal 30.52 430 + Normal 30.52 430 0 Normal 30.53 433 + Normal 30.53 433 0 Normal 30.54 435 + Normal 30.54 435 0 Normal 30.54 435 0 Normal 30.55 438 + Normal 30.55 438 0 Normal 30.55 438 0 Normal 30.55 438 0 Normal 30.56 440 + Normal 30.56 440 0 Normal 30.56 440 0 Normal 30.56 440 0 Normal 30.56 440 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 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 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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