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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: | Apr 02 2026 at 8:44 AM PDT | Next Issuance: | Apr 02 2026 at 3:00 PM PDT
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| 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: 04/02/2026 at 08:44 AM PDT
# Data Interval: 1 Hour
#
# Most Recent Date & Time of Maximum Observed: 04/01/2026 at 01:00 AM PDT
# Maximum Observed Stage: 37.52 Feet
# Maximum Observed Flow: 407 cfs
#
# Earliest Date & Time of Maximum Forecast: 04/02/2026 at 09:00 AM PDT
# Maximum Forecast Stage: 37.16 Feet
# Maximum Forecast Flow: 313 cfs
#
# OBSERVED
#
# Date & Time (Local) Stage (Feet) Flow (cfs) Trend Observed Status
# ---------------------------------------------------------------------------------
03/28/2026 08 AM PDT 37.50 402 Normal
03/28/2026 09 AM PDT 37.50 402 0 Normal
03/28/2026 10 AM PDT 37.49 399 - Normal
03/28/2026 11 AM PDT 37.49 399 0 Normal
03/28/2026 12 PM PDT 37.49 399 0 Normal
03/28/2026 01 PM PDT 37.50 402 + Normal
03/28/2026 02 PM PDT 37.51 404 + Normal
03/28/2026 03 PM PDT 37.49 399 - Normal
03/28/2026 04 PM PDT 37.47 394 - Normal
03/28/2026 05 PM PDT 37.47 394 0 Normal
03/28/2026 06 PM PDT 37.46 391 - Normal
03/28/2026 07 PM PDT 37.45 388 - Normal
03/28/2026 08 PM PDT 37.43 383 - Normal
03/28/2026 09 PM PDT 37.42 380 - Normal
03/28/2026 10 PM PDT 37.41 378 - Normal
03/28/2026 11 PM PDT 37.40 375 - Normal
03/29/2026 12 AM PDT 37.37 367 - Normal
03/29/2026 01 AM PDT 37.36 364 - Normal
03/29/2026 02 AM PDT 37.34 359 - Normal
03/29/2026 03 AM PDT 37.33 357 - Normal
03/29/2026 04 AM PDT 37.32 354 - Normal
03/29/2026 05 AM PDT 37.32 354 0 Normal
03/29/2026 06 AM PDT 37.31 351 - Normal
03/29/2026 07 AM PDT 37.31 351 0 Normal
03/29/2026 08 AM PDT 37.30 349 - Normal
03/29/2026 09 AM PDT 37.30 349 0 Normal
03/29/2026 10 AM PDT 37.30 349 0 Normal
03/29/2026 11 AM PDT 37.30 349 0 Normal
03/29/2026 12 PM PDT 37.30 349 0 Normal
03/29/2026 01 PM PDT 37.30 349 0 Normal
03/29/2026 02 PM PDT 37.31 351 + Normal
03/29/2026 03 PM PDT 37.30 349 - Normal
03/29/2026 04 PM PDT 37.31 351 + Normal
03/29/2026 05 PM PDT 37.31 351 0 Normal
03/29/2026 06 PM PDT 37.31 351 0 Normal
03/29/2026 07 PM PDT 37.31 351 0 Normal
03/29/2026 08 PM PDT 37.30 349 - Normal
03/29/2026 09 PM PDT 37.29 346 - Normal
03/29/2026 10 PM PDT 37.28 344 - Normal
03/29/2026 11 PM PDT 37.27 341 - Normal
03/30/2026 12 AM PDT 37.28 344 + Normal
03/30/2026 01 AM PDT 37.27 341 - Normal
03/30/2026 02 AM PDT 37.25 336 - Normal
03/30/2026 03 AM PDT 37.25 336 0 Normal
03/30/2026 04 AM PDT 37.24 334 - Normal
03/30/2026 05 AM PDT 37.24 334 0 Normal
03/30/2026 06 AM PDT 37.23 331 - Normal
03/30/2026 07 AM PDT 37.22 328 - Normal
03/30/2026 08 AM PDT 37.22 328 0 Normal
03/30/2026 09 AM PDT 37.23 331 + Normal
03/30/2026 10 AM PDT 37.24 334 + Normal
03/30/2026 11 AM PDT 37.24 334 0 Normal
03/30/2026 12 PM PDT 37.24 334 0 Normal
03/30/2026 01 PM PDT 37.23 331 - Normal
03/30/2026 02 PM PDT 37.22 328 - Normal
03/30/2026 03 PM PDT 37.20 323 - Normal
03/30/2026 04 PM PDT 37.21 326 + Normal
03/30/2026 05 PM PDT 37.19 321 - Normal
03/30/2026 06 PM PDT 37.19 321 0 Normal
03/30/2026 07 PM PDT 37.18 318 - Normal
03/30/2026 08 PM PDT 37.19 321 + Normal
03/30/2026 09 PM PDT 37.18 318 - Normal
03/30/2026 10 PM PDT 37.18 318 0 Normal
03/30/2026 11 PM PDT 37.18 318 0 Normal
03/31/2026 12 AM PDT 37.17 316 - Normal
03/31/2026 01 AM PDT 37.17 316 0 Normal
03/31/2026 02 AM PDT 37.17 316 0 Normal
03/31/2026 03 AM PDT 37.17 316 0 Normal
03/31/2026 04 AM PDT 37.18 318 + Normal
03/31/2026 05 AM PDT 37.19 321 + Normal
03/31/2026 06 AM PDT 37.22 328 + Normal
03/31/2026 07 AM PDT 37.24 334 + Normal
03/31/2026 08 AM PDT 37.24 334 0 Normal
03/31/2026 09 AM PDT 37.25 336 + Normal
03/31/2026 10 AM PDT 37.25 336 0 Normal
03/31/2026 11 AM PDT 37.25 336 0 Normal
03/31/2026 12 PM PDT 37.24 334 - Normal
03/31/2026 01 PM PDT 37.23 331 - Normal
03/31/2026 02 PM PDT 37.22 328 - Normal
03/31/2026 03 PM PDT 37.21 326 - Normal
03/31/2026 04 PM PDT 37.20 323 - Normal
03/31/2026 05 PM PDT 37.20 323 0 Normal
03/31/2026 06 PM PDT 37.20 323 0 Normal
03/31/2026 07 PM PDT 37.21 326 + Normal
03/31/2026 08 PM PDT 37.22 328 + Normal
03/31/2026 09 PM PDT 37.22 328 0 Normal
03/31/2026 10 PM PDT 37.23 331 + Normal
03/31/2026 11 PM PDT 37.37 367 + Normal
04/01/2026 12 AM PDT 37.49 399 + Normal
04/01/2026 01 AM PDT 37.52 407 + Normal
04/01/2026 02 AM PDT 37.49 399 - Normal
04/01/2026 03 AM PDT 37.46 391 - Normal
04/01/2026 04 AM PDT 37.43 383 - Normal
04/01/2026 05 AM PDT 37.39 372 - Normal
04/01/2026 06 AM PDT 37.36 364 - Normal
04/01/2026 07 AM PDT 37.33 357 - Normal
04/01/2026 08 AM PDT 37.30 349 - Normal
04/01/2026 09 AM PDT 37.28 344 - Normal
04/01/2026 10 AM PDT 37.27 341 - Normal
04/01/2026 11 AM PDT 37.26 339 - Normal
04/01/2026 12 PM PDT 37.26 339 0 Normal
04/01/2026 01 PM PDT 37.25 336 - Normal
04/01/2026 02 PM PDT 37.25 336 0 Normal
04/01/2026 03 PM PDT 37.23 331 - Normal
04/01/2026 04 PM PDT 37.24 334 + Normal
04/01/2026 05 PM PDT 37.23 331 - Normal
04/01/2026 06 PM PDT 37.23 331 0 Normal
04/01/2026 07 PM PDT 37.22 328 - Normal
04/01/2026 08 PM PDT 37.22 328 0 Normal
04/01/2026 09 PM PDT 37.21 326 - Normal
04/01/2026 10 PM PDT 37.20 323 - Normal
04/01/2026 11 PM PDT 37.19 321 - Normal
04/02/2026 12 AM PDT 37.18 318 - Normal
04/02/2026 01 AM PDT 37.17 316 - Normal
04/02/2026 02 AM PDT 37.17 316 0 Normal
04/02/2026 03 AM PDT 37.16 313 - Normal
04/02/2026 04 AM PDT 37.16 313 0 Normal
04/02/2026 05 AM PDT 37.16 313 0 Normal
04/02/2026 06 AM PDT 37.16 313 0 Normal
04/02/2026 07 AM PDT 37.16 313 0 Normal
04/02/2026 08 AM PDT 37.16 313 0 Normal
#
# FORECAST
#
# Date & Time (Local) Stage (Feet) Flow (cfs) Trend Forecast Status
# ---------------------------------------------------------------------------------
04/02/2026 09 AM PDT 37.16 313 Normal
04/02/2026 10 AM PDT 37.16 313 0 Normal
04/02/2026 11 AM PDT 37.16 313 0 Normal
04/02/2026 12 PM PDT 37.16 313 0 Normal
04/02/2026 01 PM PDT 37.16 313 0 Normal
04/02/2026 02 PM PDT 37.16 313 0 Normal
04/02/2026 03 PM PDT 37.16 313 0 Normal
04/02/2026 04 PM PDT 37.16 313 0 Normal
04/02/2026 05 PM PDT 37.16 313 0 Normal
04/02/2026 06 PM PDT 37.16 313 0 Normal
04/02/2026 07 PM PDT 37.16 313 0 Normal
04/02/2026 08 PM PDT 37.15 311 - Normal
04/02/2026 09 PM PDT 37.15 311 0 Normal
04/02/2026 10 PM PDT 37.15 311 0 Normal
04/02/2026 11 PM PDT 37.15 311 0 Normal
04/03/2026 12 AM PDT 37.15 311 0 Normal
04/03/2026 01 AM PDT 37.15 311 0 Normal
04/03/2026 02 AM PDT 37.15 311 0 Normal
04/03/2026 03 AM PDT 37.15 311 0 Normal
04/03/2026 04 AM PDT 37.15 311 0 Normal
04/03/2026 05 AM PDT 37.15 311 0 Normal
04/03/2026 06 AM PDT 37.15 311 0 Normal
04/03/2026 07 AM PDT 37.15 311 0 Normal
04/03/2026 08 AM PDT 37.15 311 0 Normal
04/03/2026 09 AM PDT 37.15 311 0 Normal
04/03/2026 10 AM PDT 37.14 308 - Normal
04/03/2026 11 AM PDT 37.14 308 0 Normal
04/03/2026 12 PM PDT 37.14 308 0 Normal
04/03/2026 01 PM PDT 37.14 308 0 Normal
04/03/2026 02 PM PDT 37.14 308 0 Normal
04/03/2026 03 PM PDT 37.14 308 0 Normal
04/03/2026 04 PM PDT 37.14 308 0 Normal
04/03/2026 05 PM PDT 37.14 308 0 Normal
04/03/2026 06 PM PDT 37.14 308 0 Normal
04/03/2026 07 PM PDT 37.14 308 0 Normal
04/03/2026 08 PM PDT 37.14 308 0 Normal
04/03/2026 09 PM PDT 37.14 308 0 Normal
04/03/2026 10 PM PDT 37.14 308 0 Normal
04/03/2026 11 PM PDT 37.14 308 0 Normal
04/04/2026 12 AM PDT 37.14 308 0 Normal
04/04/2026 01 AM PDT 37.14 308 0 Normal
04/04/2026 02 AM PDT 37.14 308 0 Normal
04/04/2026 03 AM PDT 37.14 308 0 Normal
04/04/2026 04 AM PDT 37.14 308 0 Normal
04/04/2026 05 AM PDT 37.14 308 0 Normal
04/04/2026 06 AM PDT 37.14 308 0 Normal
04/04/2026 07 AM PDT 37.14 308 0 Normal
04/04/2026 08 AM PDT 37.14 308 0 Normal
04/04/2026 09 AM PDT 37.14 308 0 Normal
04/04/2026 10 AM PDT 37.14 308 0 Normal
04/04/2026 11 AM PDT 37.14 308 0 Normal
04/04/2026 12 PM PDT 37.14 308 0 Normal
04/04/2026 01 PM PDT 37.14 308 0 Normal
04/04/2026 02 PM PDT 37.14 308 0 Normal
04/04/2026 03 PM PDT 37.14 308 0 Normal
04/04/2026 04 PM PDT 37.14 308 0 Normal
04/04/2026 05 PM PDT 37.14 308 0 Normal
04/04/2026 06 PM PDT 37.14 308 0 Normal
04/04/2026 07 PM PDT 37.14 308 0 Normal
04/04/2026 08 PM PDT 37.14 308 0 Normal
04/04/2026 09 PM PDT 37.14 308 0 Normal
04/04/2026 10 PM PDT 37.14 308 0 Normal
04/04/2026 11 PM PDT 37.14 308 0 Normal
04/05/2026 12 AM PDT 37.14 308 0 Normal
04/05/2026 01 AM PDT 37.14 308 0 Normal
04/05/2026 02 AM PDT 37.14 308 0 Normal
04/05/2026 03 AM PDT 37.14 308 0 Normal
04/05/2026 04 AM PDT 37.14 308 0 Normal
04/05/2026 05 AM PDT 37.14 308 0 Normal
04/05/2026 06 AM PDT 37.14 308 0 Normal
04/05/2026 07 AM PDT 37.14 308 0 Normal
04/05/2026 08 AM PDT 37.14 308 0 Normal
04/05/2026 09 AM PDT 37.14 308 0 Normal
04/05/2026 10 AM PDT 37.14 308 0 Normal
04/05/2026 11 AM PDT 37.14 308 0 Normal
04/05/2026 12 PM PDT 37.14 308 0 Normal
04/05/2026 01 PM PDT 37.14 308 0 Normal
04/05/2026 02 PM PDT 37.14 308 0 Normal
04/05/2026 03 PM PDT 37.14 308 0 Normal
04/05/2026 04 PM PDT 37.14 308 0 Normal
04/05/2026 05 PM PDT 37.14 308 0 Normal
04/05/2026 06 PM PDT 37.14 308 0 Normal
04/05/2026 07 PM PDT 37.14 308 0 Normal
04/05/2026 08 PM PDT 37.14 308 0 Normal
04/05/2026 09 PM PDT 37.14 308 0 Normal
04/05/2026 10 PM PDT 37.14 308 0 Normal
04/05/2026 11 PM PDT 37.14 308 0 Normal
04/06/2026 12 AM PDT 37.14 308 0 Normal
04/06/2026 01 AM PDT 37.14 308 0 Normal
04/06/2026 02 AM PDT 37.14 308 0 Normal
04/06/2026 03 AM PDT 37.14 308 0 Normal
04/06/2026 04 AM PDT 37.14 308 0 Normal
04/06/2026 05 AM PDT 37.14 308 0 Normal
04/06/2026 06 AM PDT 37.14 308 0 Normal
04/06/2026 07 AM PDT 37.14 308 0 Normal
04/06/2026 08 AM PDT 37.14 308 0 Normal
04/06/2026 09 AM PDT 37.14 308 0 Normal
04/06/2026 10 AM PDT 37.14 308 0 Normal
04/06/2026 11 AM PDT 37.14 308 0 Normal
04/06/2026 12 PM PDT 37.14 308 0 Normal
04/06/2026 01 PM PDT 37.14 308 0 Normal
04/06/2026 02 PM PDT 37.14 308 0 Normal
04/06/2026 03 PM PDT 37.14 308 0 Normal
04/06/2026 04 PM PDT 37.14 308 0 Normal
04/06/2026 05 PM PDT 37.14 308 0 Normal
04/06/2026 06 PM PDT 37.14 308 0 Normal
04/06/2026 07 PM PDT 37.14 308 0 Normal
04/06/2026 08 PM PDT 37.14 308 0 Normal
04/06/2026 09 PM PDT 37.14 308 0 Normal
04/06/2026 10 PM PDT 37.14 308 0 Normal
04/06/2026 11 PM PDT 37.14 308 0 Normal
04/07/2026 12 AM PDT 37.14 308 0 Normal
04/07/2026 01 AM PDT 37.14 308 0 Normal
04/07/2026 02 AM PDT 37.14 308 0 Normal
04/07/2026 03 AM PDT 37.14 308 0 Normal
04/07/2026 04 AM PDT 37.14 308 0 Normal
04/07/2026 05 AM PDT 37.14 308 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.
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