| Back to River Map | <<< Previous Forecast Point | | | Next Forecast Point >>> | Printer Version | Graph Version |  |
|
TUOLUMNE RIVER - MODESTO (MDSC1)
| Latitude: 37.63º N | Longitude: 120.99º W | Elevation: 60 Feet | | Forecast Type: Official Location |
| Location: Stanislaus County in California | Bulletin Group: San Joaquin | River Group: San Joaquin |
| Issuance Time: | May 04 2026 at 8:01 AM PDT | Next Issuance: | May 05 2026 at 9:00 AM PDT
| |
| Action/Monitor: 50.5 Feet | Minor Flood: 55.0 Feet | Moderate Flood: 66.0 Feet | Major Flood: 67.0 Feet |
# Tabular Observed and Forecast Hydrograph Information
#
# Location: Tuolumne River - Modesto (MDSC1)
#
# File Generation Time: 05/04/2026 at 08:01 AM PDT
# Data Interval: 1 Hour
#
# Most Recent Date & Time of Maximum Observed: 04/29/2026 at 08:00 AM PDT
# Maximum Observed Stage: 38.70 Feet
# Maximum Observed Flow: 748 cfs
#
# Earliest Date & Time of Maximum Forecast: 05/04/2026 at 08:00 AM PDT
# Maximum Forecast Stage: 37.65 Feet
# Maximum Forecast Flow: 409 cfs
#
# OBSERVED
#
# Date & Time (Local) Stage (Feet) Flow (cfs) Trend Observed Status
# ---------------------------------------------------------------------------------
04/29/2026 08 AM PDT 38.70 748 Normal
04/29/2026 09 AM PDT 38.67 738 - Normal
04/29/2026 10 AM PDT 38.66 734 - Normal
04/29/2026 11 AM PDT 38.65 731 - Normal
04/29/2026 12 PM PDT 38.65 731 0 Normal
04/29/2026 01 PM PDT 38.63 724 - Normal
04/29/2026 02 PM PDT 38.62 721 - Normal
04/29/2026 03 PM PDT 38.61 717 - Normal
04/29/2026 04 PM PDT 38.59 710 - Normal
04/29/2026 05 PM PDT 38.59 710 0 Normal
04/29/2026 06 PM PDT 38.57 703 - Normal
04/29/2026 07 PM PDT 38.55 696 - Normal
04/29/2026 08 PM PDT 38.54 693 - Normal
04/29/2026 09 PM PDT 38.51 683 - Normal
04/29/2026 10 PM PDT 38.50 679 - Normal
04/29/2026 11 PM PDT 38.48 673 - Normal
04/30/2026 12 AM PDT 38.47 669 - Normal
04/30/2026 01 AM PDT 38.45 662 - Normal
04/30/2026 02 AM PDT 38.44 659 - Normal
04/30/2026 03 AM PDT 38.43 656 - Normal
04/30/2026 04 AM PDT 38.43 656 0 Normal
04/30/2026 05 AM PDT 38.41 649 - Normal
04/30/2026 06 AM PDT 38.40 646 - Normal
04/30/2026 07 AM PDT 38.40 646 0 Normal
04/30/2026 08 AM PDT 38.38 639 - Normal
04/30/2026 09 AM PDT 38.38 639 0 Normal
04/30/2026 10 AM PDT 38.36 632 - Normal
04/30/2026 11 AM PDT 38.36 632 0 Normal
04/30/2026 12 PM PDT 38.36 632 0 Normal
04/30/2026 01 PM PDT 38.36 632 0 Normal
04/30/2026 02 PM PDT 38.36 632 0 Normal
04/30/2026 03 PM PDT 38.36 632 0 Normal
04/30/2026 04 PM PDT 38.35 629 - Normal
04/30/2026 05 PM PDT 38.34 625 - Normal
04/30/2026 06 PM PDT 38.33 622 - Normal
04/30/2026 07 PM PDT 38.32 619 - Normal
04/30/2026 08 PM PDT 38.31 616 - Normal
04/30/2026 09 PM PDT 38.31 616 0 Normal
04/30/2026 10 PM PDT 38.29 609 - Normal
04/30/2026 11 PM PDT 38.29 609 0 Normal
05/01/2026 12 AM PDT 38.29 609 0 Normal
05/01/2026 01 AM PDT 38.28 606 - Normal
05/01/2026 02 AM PDT 38.27 602 - Normal
05/01/2026 03 AM PDT 38.28 606 + Normal
05/01/2026 04 AM PDT 38.26 599 - Normal
05/01/2026 05 AM PDT 38.26 599 0 Normal
05/01/2026 06 AM PDT 38.26 599 0 Normal
05/01/2026 07 AM PDT 38.25 596 - Normal
05/01/2026 08 AM PDT 38.25 596 0 Normal
05/01/2026 09 AM PDT 38.24 592 - Normal
05/01/2026 10 AM PDT 38.24 592 0 Normal
05/01/2026 11 AM PDT 38.23 589 - Normal
05/01/2026 12 PM PDT 38.23 589 0 Normal
05/01/2026 01 PM PDT 38.23 589 0 Normal
05/01/2026 02 PM PDT 38.23 589 0 Normal
05/01/2026 03 PM PDT 38.23 589 0 Normal
05/01/2026 04 PM PDT 38.24 592 + Normal
05/01/2026 05 PM PDT 38.23 589 - Normal
05/01/2026 06 PM PDT 38.22 586 - Normal
05/01/2026 07 PM PDT 38.20 579 - Normal
05/01/2026 08 PM PDT 38.18 573 - Normal
05/01/2026 09 PM PDT 38.16 566 - Normal
05/01/2026 10 PM PDT 38.13 557 - Normal
05/01/2026 11 PM PDT 38.11 550 - Normal
05/02/2026 12 AM PDT 38.09 544 - Normal
05/02/2026 01 AM PDT 38.08 541 - Normal
05/02/2026 02 AM PDT 38.06 534 - Normal
05/02/2026 03 AM PDT 38.06 534 0 Normal
05/02/2026 04 AM PDT 38.05 531 - Normal
05/02/2026 05 AM PDT 38.04 528 - Normal
05/02/2026 06 AM PDT 38.03 525 - Normal
05/02/2026 07 AM PDT 38.03 525 0 Normal
05/02/2026 08 AM PDT 38.02 522 - Normal
05/02/2026 09 AM PDT 38.00 515 - Normal
05/02/2026 10 AM PDT 37.99 512 - Normal
05/02/2026 11 AM PDT 37.99 512 0 Normal
05/02/2026 12 PM PDT 37.97 506 - Normal
05/02/2026 01 PM PDT 37.96 503 - Normal
05/02/2026 02 PM PDT 37.95 500 - Normal
05/02/2026 03 PM PDT 37.95 500 0 Normal
05/02/2026 04 PM PDT 37.94 497 - Normal
05/02/2026 05 PM PDT 37.94 497 0 Normal
05/02/2026 06 PM PDT 37.93 493 - Normal
05/02/2026 07 PM PDT 37.92 490 - Normal
05/02/2026 08 PM PDT 37.91 487 - Normal
05/02/2026 09 PM PDT 37.90 484 - Normal
05/02/2026 10 PM PDT 37.89 481 - Normal
05/02/2026 11 PM PDT 37.88 478 - Normal
05/03/2026 12 AM PDT 37.87 475 - Normal
05/03/2026 01 AM PDT 37.86 472 - Normal
05/03/2026 02 AM PDT 37.85 469 - Normal
05/03/2026 03 AM PDT 37.84 466 - Normal
05/03/2026 04 AM PDT 37.82 460 - Normal
05/03/2026 05 AM PDT 37.82 460 0 Normal
05/03/2026 06 AM PDT 37.80 454 - Normal
05/03/2026 07 AM PDT 37.80 454 0 Normal
05/03/2026 08 AM PDT 37.80 454 0 Normal
05/03/2026 09 AM PDT 37.81 457 + Normal
05/03/2026 10 AM PDT 37.82 460 + Normal
05/03/2026 11 AM PDT 37.82 460 0 Normal
05/03/2026 12 PM PDT 37.82 460 0 Normal
05/03/2026 01 PM PDT 37.82 460 0 Normal
05/03/2026 02 PM PDT 37.81 457 - Normal
05/03/2026 03 PM PDT 37.80 454 - Normal
05/03/2026 04 PM PDT 37.79 451 - Normal
05/03/2026 05 PM PDT 37.78 448 - Normal
05/03/2026 06 PM PDT 37.78 448 0 Normal
05/03/2026 07 PM PDT 37.77 444 - Normal
05/03/2026 08 PM PDT 37.77 444 0 Normal
05/03/2026 09 PM PDT 37.76 441 - Normal
05/03/2026 10 PM PDT 37.75 438 - Normal
05/03/2026 11 PM PDT 37.73 432 - Normal
05/04/2026 12 AM PDT 37.71 427 - Normal
05/04/2026 01 AM PDT 37.70 424 - Normal
05/04/2026 02 AM PDT 37.69 421 - Normal
05/04/2026 03 AM PDT 37.68 418 - Normal
05/04/2026 04 AM PDT 37.67 415 - Normal
05/04/2026 05 AM PDT 37.66 412 - Normal
05/04/2026 06 AM PDT 37.65 409 - Normal
05/04/2026 07 AM PDT 37.65 409 0 Normal
#
# FORECAST
#
# Date & Time (Local) Stage (Feet) Flow (cfs) Trend Forecast Status
# ---------------------------------------------------------------------------------
05/04/2026 08 AM PDT 37.65 409 Normal
05/04/2026 09 AM PDT 37.64 406 - Normal
05/04/2026 10 AM PDT 37.64 406 0 Normal
05/04/2026 11 AM PDT 37.64 406 0 Normal
05/04/2026 12 PM PDT 37.64 406 0 Normal
05/04/2026 01 PM PDT 37.63 403 - Normal
05/04/2026 02 PM PDT 37.63 403 0 Normal
05/04/2026 03 PM PDT 37.63 403 0 Normal
05/04/2026 04 PM PDT 37.63 403 0 Normal
05/04/2026 05 PM PDT 37.62 400 - Normal
05/04/2026 06 PM PDT 37.62 400 0 Normal
05/04/2026 07 PM PDT 37.60 394 - Normal
05/04/2026 08 PM PDT 37.59 391 - Normal
05/04/2026 09 PM PDT 37.57 385 - Normal
05/04/2026 10 PM PDT 37.56 382 - Normal
05/04/2026 11 PM PDT 37.55 380 - Normal
05/05/2026 12 AM PDT 37.54 377 - Normal
05/05/2026 01 AM PDT 37.53 374 - Normal
05/05/2026 02 AM PDT 37.52 371 - Normal
05/05/2026 03 AM PDT 37.51 368 - Normal
05/05/2026 04 AM PDT 37.50 365 - Normal
05/05/2026 05 AM PDT 37.49 362 - Normal
05/05/2026 06 AM PDT 37.49 362 0 Normal
05/05/2026 07 AM PDT 37.48 360 - Normal
05/05/2026 08 AM PDT 37.48 360 0 Normal
05/05/2026 09 AM PDT 37.48 360 0 Normal
05/05/2026 10 AM PDT 37.47 357 - Normal
05/05/2026 11 AM PDT 37.47 357 0 Normal
05/05/2026 12 PM PDT 37.47 357 0 Normal
05/05/2026 01 PM PDT 37.46 354 - Normal
05/05/2026 02 PM PDT 37.46 354 0 Normal
05/05/2026 03 PM PDT 37.46 354 0 Normal
05/05/2026 04 PM PDT 37.46 354 0 Normal
05/05/2026 05 PM PDT 37.46 354 0 Normal
05/05/2026 06 PM PDT 37.45 351 - Normal
05/05/2026 07 PM PDT 37.45 351 0 Normal
05/05/2026 08 PM PDT 37.45 351 0 Normal
05/05/2026 09 PM PDT 37.45 351 0 Normal
05/05/2026 10 PM PDT 37.45 351 0 Normal
05/05/2026 11 PM PDT 37.45 351 0 Normal
05/06/2026 12 AM PDT 37.45 351 0 Normal
05/06/2026 01 AM PDT 37.45 351 0 Normal
05/06/2026 02 AM PDT 37.45 351 0 Normal
05/06/2026 03 AM PDT 37.45 351 0 Normal
05/06/2026 04 AM PDT 37.45 351 0 Normal
05/06/2026 05 AM PDT 37.45 351 0 Normal
05/06/2026 06 AM PDT 37.46 354 + Normal
05/06/2026 07 AM PDT 37.46 354 0 Normal
05/06/2026 08 AM PDT 37.46 354 0 Normal
05/06/2026 09 AM PDT 37.46 354 0 Normal
05/06/2026 10 AM PDT 37.46 354 0 Normal
05/06/2026 11 AM PDT 37.46 354 0 Normal
05/06/2026 12 PM PDT 37.46 354 0 Normal
05/06/2026 01 PM PDT 37.46 354 0 Normal
05/06/2026 02 PM PDT 37.46 354 0 Normal
05/06/2026 03 PM PDT 37.45 351 - Normal
05/06/2026 04 PM PDT 37.45 351 0 Normal
05/06/2026 05 PM PDT 37.45 351 0 Normal
05/06/2026 06 PM PDT 37.45 351 0 Normal
05/06/2026 07 PM PDT 37.45 351 0 Normal
05/06/2026 08 PM PDT 37.45 351 0 Normal
05/06/2026 09 PM PDT 37.45 351 0 Normal
05/06/2026 10 PM PDT 37.45 351 0 Normal
05/06/2026 11 PM PDT 37.45 351 0 Normal
05/07/2026 12 AM PDT 37.45 351 0 Normal
05/07/2026 01 AM PDT 37.45 351 0 Normal
05/07/2026 02 AM PDT 37.45 351 0 Normal
05/07/2026 03 AM PDT 37.45 351 0 Normal
05/07/2026 04 AM PDT 37.45 351 0 Normal
05/07/2026 05 AM PDT 37.45 351 0 Normal
05/07/2026 06 AM PDT 37.45 351 0 Normal
05/07/2026 07 AM PDT 37.45 351 0 Normal
05/07/2026 08 AM PDT 37.45 351 0 Normal
05/07/2026 09 AM PDT 37.45 351 0 Normal
05/07/2026 10 AM PDT 37.45 351 0 Normal
05/07/2026 11 AM PDT 37.45 351 0 Normal
05/07/2026 12 PM PDT 37.45 351 0 Normal
05/07/2026 01 PM PDT 37.45 351 0 Normal
05/07/2026 02 PM PDT 37.45 351 0 Normal
05/07/2026 03 PM PDT 37.45 351 0 Normal
05/07/2026 04 PM PDT 37.45 351 0 Normal
05/07/2026 05 PM PDT 37.45 351 0 Normal
05/07/2026 06 PM PDT 37.45 351 0 Normal
05/07/2026 07 PM PDT 37.45 351 0 Normal
05/07/2026 08 PM PDT 37.45 351 0 Normal
05/07/2026 09 PM PDT 37.46 354 + Normal
05/07/2026 10 PM PDT 37.46 354 0 Normal
05/07/2026 11 PM PDT 37.46 354 0 Normal
05/08/2026 12 AM PDT 37.46 354 0 Normal
05/08/2026 01 AM PDT 37.46 354 0 Normal
05/08/2026 02 AM PDT 37.46 354 0 Normal
05/08/2026 03 AM PDT 37.46 354 0 Normal
05/08/2026 04 AM PDT 37.46 354 0 Normal
05/08/2026 05 AM PDT 37.46 354 0 Normal
05/08/2026 06 AM PDT 37.46 354 0 Normal
05/08/2026 07 AM PDT 37.46 354 0 Normal
05/08/2026 08 AM PDT 37.46 354 0 Normal
05/08/2026 09 AM PDT 37.46 354 0 Normal
05/08/2026 10 AM PDT 37.46 354 0 Normal
05/08/2026 11 AM PDT 37.46 354 0 Normal
05/08/2026 12 PM PDT 37.46 354 0 Normal
05/08/2026 01 PM PDT 37.46 354 0 Normal
05/08/2026 02 PM PDT 37.46 354 0 Normal
05/08/2026 03 PM PDT 37.46 354 0 Normal
05/08/2026 04 PM PDT 37.46 354 0 Normal
05/08/2026 05 PM PDT 37.46 354 0 Normal
05/08/2026 06 PM PDT 37.46 354 0 Normal
05/08/2026 07 PM PDT 37.46 354 0 Normal
05/08/2026 08 PM PDT 37.46 354 0 Normal
05/08/2026 09 PM PDT 37.46 354 0 Normal
05/08/2026 10 PM PDT 37.46 354 0 Normal
05/08/2026 11 PM PDT 37.46 354 0 Normal
05/09/2026 12 AM PDT 37.46 354 0 Normal
05/09/2026 01 AM PDT 37.46 354 0 Normal
05/09/2026 02 AM PDT 37.47 357 + Normal
05/09/2026 03 AM PDT 37.47 357 0 Normal
05/09/2026 04 AM PDT 37.47 357 0 Normal
05/09/2026 05 AM PDT 37.47 357 0 Normal
#
# NOTE 1: Stages are rounded to the nearest hundredth (.01) of a foot.
# NOTE 2: Flows are rounded to the nearest (1) cfs.
# NOTE 3: Trends are determined using hourly change in unrounded stage and flow.
# NOTE 4: Maximum Values are determined using unrounded stage and flow.
|