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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: | Mar 09 2026 at 12:57 PM PDT | Next Issuance: | Mar 10 2026 at 9:00 AM 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: 03/09/2026 at 12:58 PM PDT
# Data Interval: 1 Hour
#
# Most Recent Date & Time of Maximum Observed: 03/04/2026 at 12:00 PM PST
# Maximum Observed Stage: 44.58 Feet
# Maximum Observed Flow: 3078 cfs
#
# Earliest Date & Time of Maximum Forecast: 03/10/2026 at 10:00 PM PDT
# Maximum Forecast Stage: 44.71 Feet
# Maximum Forecast Flow: 3139 cfs
#
# OBSERVED
#
# Date & Time (Local) Stage (Feet) Flow (cfs) Trend Observed Status
# ---------------------------------------------------------------------------------
03/04/2026 11 AM PST 44.55 3063 Normal
03/04/2026 12 PM PST 44.58 3078 + Normal
03/04/2026 01 PM PST 44.54 3059 - Normal
03/04/2026 02 PM PST 44.56 3068 + Normal
03/04/2026 03 PM PST 44.55 3063 - Normal
03/04/2026 04 PM PST 44.56 3068 + Normal
03/04/2026 05 PM PST 44.55 3063 - Normal
03/04/2026 06 PM PST 44.54 3059 - Normal
03/04/2026 07 PM PST 44.54 3059 0 Normal
03/04/2026 08 PM PST 44.54 3059 0 Normal
03/04/2026 09 PM PST 44.54 3059 0 Normal
03/04/2026 10 PM PST 44.54 3059 0 Normal
03/04/2026 11 PM PST 44.54 3059 0 Normal
03/05/2026 12 AM PST 44.54 3059 0 Normal
03/05/2026 01 AM PST 44.54 3059 0 Normal
03/05/2026 02 AM PST 44.53 3054 - Normal
03/05/2026 03 AM PST 44.54 3059 + Normal
03/05/2026 04 AM PST 44.52 3049 - Normal
03/05/2026 05 AM PST 44.52 3049 0 Normal
03/05/2026 06 AM PST 44.53 3054 + Normal
03/05/2026 07 AM PST 44.52 3049 - Normal
03/05/2026 08 AM PST 44.52 3049 0 Normal
03/05/2026 09 AM PST 44.53 3054 + Normal
03/05/2026 10 AM PST 44.51 3045 - Normal
03/05/2026 11 AM PST 44.54 3059 + Normal
03/05/2026 12 PM PST 44.54 3059 0 Normal
03/05/2026 01 PM PST 44.54 3059 0 Normal
03/05/2026 02 PM PST 44.53 3054 - Normal
03/05/2026 03 PM PST 44.53 3054 0 Normal
03/05/2026 04 PM PST 44.52 3049 - Normal
03/05/2026 05 PM PST 44.55 3063 + Normal
03/05/2026 06 PM PST 44.53 3054 - Normal
03/05/2026 07 PM PST 44.54 3059 + Normal
03/05/2026 08 PM PST 44.55 3063 + Normal
03/05/2026 09 PM PST 44.54 3059 - Normal
03/05/2026 10 PM PST 44.55 3063 + Normal
03/05/2026 11 PM PST 44.53 3054 - Normal
03/06/2026 12 AM PST 44.55 3063 + Normal
03/06/2026 01 AM PST 44.54 3059 - Normal
03/06/2026 02 AM PST 44.53 3054 - Normal
03/06/2026 03 AM PST 44.54 3059 + Normal
03/06/2026 04 AM PST 44.54 3059 0 Normal
03/06/2026 05 AM PST 44.56 3068 + Normal
03/06/2026 06 AM PST 44.54 3059 - Normal
03/06/2026 07 AM PST 44.54 3059 0 Normal
03/06/2026 08 AM PST 44.54 3059 0 Normal
03/06/2026 09 AM PST 44.56 3068 + Normal
03/06/2026 10 AM PST 44.55 3063 - Normal
03/06/2026 11 AM PST 44.54 3059 - Normal
03/06/2026 12 PM PST 44.55 3063 + Normal
03/06/2026 01 PM PST 44.56 3068 + Normal
03/06/2026 02 PM PST 44.55 3063 - Normal
03/06/2026 03 PM PST 44.54 3059 - Normal
03/06/2026 04 PM PST 44.53 3054 - Normal
03/06/2026 05 PM PST 44.55 3063 + Normal
03/06/2026 06 PM PST 44.55 3063 0 Normal
03/06/2026 07 PM PST 44.54 3059 - Normal
03/06/2026 08 PM PST 44.54 3059 0 Normal
03/06/2026 09 PM PST 44.54 3059 0 Normal
03/06/2026 10 PM PST 44.54 3059 0 Normal
03/06/2026 11 PM PST 44.54 3059 0 Normal
03/07/2026 12 AM PST 44.53 3054 - Normal
03/07/2026 01 AM PST 44.53 3054 0 Normal
03/07/2026 02 AM PST 44.54 3059 + Normal
03/07/2026 03 AM PST 44.53 3054 - Normal
03/07/2026 04 AM PST 44.53 3054 0 Normal
03/07/2026 05 AM PST 44.53 3054 0 Normal
03/07/2026 06 AM PST 44.54 3059 + Normal
03/07/2026 07 AM PST 44.53 3054 - Normal
03/07/2026 08 AM PST 44.53 3054 0 Normal
03/07/2026 09 AM PST 44.54 3059 + Normal
03/07/2026 10 AM PST 44.53 3054 - Normal
03/07/2026 11 AM PST 44.54 3059 + Normal
03/07/2026 12 PM PST 44.55 3063 + Normal
03/07/2026 01 PM PST 44.55 3063 0 Normal
03/07/2026 02 PM PST 44.56 3068 + Normal
03/07/2026 03 PM PST 44.55 3063 - Normal
03/07/2026 04 PM PST 44.54 3059 - Normal
03/07/2026 05 PM PST 44.53 3054 - Normal
03/07/2026 06 PM PST 44.54 3059 + Normal
03/07/2026 07 PM PST 44.54 3059 0 Normal
03/07/2026 08 PM PST 44.54 3059 0 Normal
03/07/2026 09 PM PST 44.55 3063 + Normal
03/07/2026 10 PM PST 44.54 3059 - Normal
03/07/2026 11 PM PST 44.53 3054 - Normal
03/08/2026 12 AM PST 44.54 3059 + Normal
03/08/2026 01 AM PST 44.53 3054 - Normal
03/08/2026 03 AM PDT 44.54 3059 + Normal
03/08/2026 04 AM PDT 44.54 3059 0 Normal
03/08/2026 05 AM PDT 44.54 3059 0 Normal
03/08/2026 06 AM PDT 44.55 3063 + Normal
03/08/2026 07 AM PDT 44.54 3059 - Normal
03/08/2026 08 AM PDT 44.54 3059 0 Normal
03/08/2026 09 AM PDT 44.55 3063 + Normal
03/08/2026 10 AM PDT 44.53 3054 - Normal
03/08/2026 11 AM PDT 44.54 3059 + Normal
03/08/2026 12 PM PDT 44.54 3059 0 Normal
03/08/2026 01 PM PDT 44.55 3063 + Normal
03/08/2026 02 PM PDT 44.55 3063 0 Normal
03/08/2026 03 PM PDT 44.54 3059 - Normal
03/08/2026 04 PM PDT 44.55 3063 + Normal
03/08/2026 05 PM PDT 44.56 3068 + Normal
03/08/2026 06 PM PDT 44.56 3068 0 Normal
03/08/2026 07 PM PDT 44.55 3063 - Normal
03/08/2026 08 PM PDT 44.56 3068 + Normal
03/08/2026 09 PM PDT 44.54 3059 - Normal
03/08/2026 10 PM PDT 44.55 3063 + Normal
03/08/2026 11 PM PDT 44.55 3063 0 Normal
03/09/2026 12 AM PDT 44.55 3063 0 Normal
03/09/2026 01 AM PDT 44.55 3063 0 Normal
03/09/2026 02 AM PDT 44.55 3063 0 Normal
03/09/2026 03 AM PDT 44.55 3063 0 Normal
03/09/2026 04 AM PDT 44.55 3063 0 Normal
03/09/2026 05 AM PDT 44.55 3063 0 Normal
03/09/2026 06 AM PDT 44.55 3063 0 Normal
03/09/2026 07 AM PDT 44.53 3054 - Normal
03/09/2026 08 AM PDT 44.54 3059 + Normal
03/09/2026 09 AM PDT 44.55 3063 + Normal
03/09/2026 10 AM PDT 44.55 3063 0 Normal
03/09/2026 11 AM PDT 44.55 3063 0 Normal
03/09/2026 12 PM PDT 44.55 3063 0 Normal
#
# FORECAST
#
# Date & Time (Local) Stage (Feet) Flow (cfs) Trend Forecast Status
# ---------------------------------------------------------------------------------
03/09/2026 01 PM PDT 44.54 3059 Normal
03/09/2026 02 PM PDT 44.55 3063 + Normal
03/09/2026 03 PM PDT 44.55 3063 0 Normal
03/09/2026 04 PM PDT 44.55 3063 0 Normal
03/09/2026 05 PM PDT 44.55 3063 0 Normal
03/09/2026 06 PM PDT 44.54 3059 - Normal
03/09/2026 07 PM PDT 44.54 3059 0 Normal
03/09/2026 08 PM PDT 44.54 3059 0 Normal
03/09/2026 09 PM PDT 44.54 3059 0 Normal
03/09/2026 10 PM PDT 44.54 3059 0 Normal
03/09/2026 11 PM PDT 44.54 3059 0 Normal
03/10/2026 12 AM PDT 44.55 3063 + Normal
03/10/2026 01 AM PDT 44.56 3068 + Normal
03/10/2026 02 AM PDT 44.58 3078 + Normal
03/10/2026 03 AM PDT 44.59 3082 + Normal
03/10/2026 04 AM PDT 44.61 3092 + Normal
03/10/2026 05 AM PDT 44.62 3096 + Normal
03/10/2026 06 AM PDT 44.63 3101 + Normal
03/10/2026 07 AM PDT 44.64 3106 + Normal
03/10/2026 08 AM PDT 44.65 3111 + Normal
03/10/2026 09 AM PDT 44.66 3115 + Normal
03/10/2026 10 AM PDT 44.67 3120 + Normal
03/10/2026 11 AM PDT 44.67 3120 0 Normal
03/10/2026 12 PM PDT 44.68 3125 + Normal
03/10/2026 01 PM PDT 44.68 3125 0 Normal
03/10/2026 02 PM PDT 44.69 3130 + Normal
03/10/2026 03 PM PDT 44.69 3130 0 Normal
03/10/2026 04 PM PDT 44.70 3135 + Normal
03/10/2026 05 PM PDT 44.70 3135 0 Normal
03/10/2026 06 PM PDT 44.70 3135 0 Normal
03/10/2026 07 PM PDT 44.70 3135 0 Normal
03/10/2026 08 PM PDT 44.70 3135 0 Normal
03/10/2026 09 PM PDT 44.70 3135 0 Normal
03/10/2026 10 PM PDT 44.71 3139 + Normal
03/10/2026 11 PM PDT 44.71 3139 0 Normal
03/11/2026 12 AM PDT 44.71 3139 0 Normal
03/11/2026 01 AM PDT 44.71 3139 0 Normal
03/11/2026 02 AM PDT 44.71 3139 0 Normal
03/11/2026 03 AM PDT 44.71 3139 0 Normal
03/11/2026 04 AM PDT 44.71 3139 0 Normal
03/11/2026 05 AM PDT 44.71 3139 0 Normal
03/11/2026 06 AM PDT 44.71 3139 0 Normal
03/11/2026 07 AM PDT 44.71 3139 0 Normal
03/11/2026 08 AM PDT 44.71 3139 0 Normal
03/11/2026 09 AM PDT 44.71 3139 0 Normal
03/11/2026 10 AM PDT 44.71 3139 0 Normal
03/11/2026 11 AM PDT 44.71 3139 0 Normal
03/11/2026 12 PM PDT 44.71 3139 0 Normal
03/11/2026 01 PM PDT 44.71 3139 0 Normal
03/11/2026 02 PM PDT 44.71 3139 0 Normal
03/11/2026 03 PM PDT 44.71 3139 0 Normal
03/11/2026 04 PM PDT 44.71 3139 0 Normal
03/11/2026 05 PM PDT 44.71 3139 0 Normal
03/11/2026 06 PM PDT 44.71 3139 0 Normal
03/11/2026 07 PM PDT 44.71 3139 0 Normal
03/11/2026 08 PM PDT 44.71 3139 0 Normal
03/11/2026 09 PM PDT 44.71 3139 0 Normal
03/11/2026 10 PM PDT 44.71 3139 0 Normal
03/11/2026 11 PM PDT 44.71 3139 0 Normal
03/12/2026 12 AM PDT 44.71 3139 0 Normal
03/12/2026 01 AM PDT 44.71 3139 0 Normal
03/12/2026 02 AM PDT 44.71 3139 0 Normal
03/12/2026 03 AM PDT 44.70 3135 - Normal
03/12/2026 04 AM PDT 44.70 3135 0 Normal
03/12/2026 05 AM PDT 44.70 3135 0 Normal
03/12/2026 06 AM PDT 44.70 3135 0 Normal
03/12/2026 07 AM PDT 44.70 3135 0 Normal
03/12/2026 08 AM PDT 44.70 3135 0 Normal
03/12/2026 09 AM PDT 44.70 3135 0 Normal
03/12/2026 10 AM PDT 44.70 3135 0 Normal
03/12/2026 11 AM PDT 44.70 3135 0 Normal
03/12/2026 12 PM PDT 44.70 3135 0 Normal
03/12/2026 01 PM PDT 44.70 3135 0 Normal
03/12/2026 02 PM PDT 44.70 3135 0 Normal
03/12/2026 03 PM PDT 44.70 3135 0 Normal
03/12/2026 04 PM PDT 44.70 3135 0 Normal
03/12/2026 05 PM PDT 44.70 3135 0 Normal
03/12/2026 06 PM PDT 44.70 3135 0 Normal
03/12/2026 07 PM PDT 44.70 3135 0 Normal
03/12/2026 08 PM PDT 44.70 3135 0 Normal
03/12/2026 09 PM PDT 44.70 3135 0 Normal
03/12/2026 10 PM PDT 44.70 3135 0 Normal
03/12/2026 11 PM PDT 44.70 3135 0 Normal
03/13/2026 12 AM PDT 44.69 3130 - Normal
03/13/2026 01 AM PDT 44.69 3130 0 Normal
03/13/2026 02 AM PDT 44.69 3130 0 Normal
03/13/2026 03 AM PDT 44.69 3130 0 Normal
03/13/2026 04 AM PDT 44.69 3130 0 Normal
03/13/2026 05 AM PDT 44.69 3130 0 Normal
03/13/2026 06 AM PDT 44.69 3130 0 Normal
03/13/2026 07 AM PDT 44.69 3130 0 Normal
03/13/2026 08 AM PDT 44.69 3130 0 Normal
03/13/2026 09 AM PDT 44.69 3130 0 Normal
03/13/2026 10 AM PDT 44.69 3130 0 Normal
03/13/2026 11 AM PDT 44.69 3130 0 Normal
03/13/2026 12 PM PDT 44.69 3130 0 Normal
03/13/2026 01 PM PDT 44.69 3130 0 Normal
03/13/2026 02 PM PDT 44.69 3130 0 Normal
03/13/2026 03 PM PDT 44.69 3130 0 Normal
03/13/2026 04 PM PDT 44.69 3130 0 Normal
03/13/2026 05 PM PDT 44.69 3130 0 Normal
03/13/2026 06 PM PDT 44.68 3125 - Normal
03/13/2026 07 PM PDT 44.68 3125 0 Normal
03/13/2026 08 PM PDT 44.68 3125 0 Normal
03/13/2026 09 PM PDT 44.68 3125 0 Normal
03/13/2026 10 PM PDT 44.68 3125 0 Normal
03/13/2026 11 PM PDT 44.68 3125 0 Normal
03/14/2026 12 AM PDT 44.68 3125 0 Normal
03/14/2026 01 AM PDT 44.68 3125 0 Normal
03/14/2026 02 AM PDT 44.68 3125 0 Normal
03/14/2026 03 AM PDT 44.68 3125 0 Normal
03/14/2026 04 AM PDT 44.68 3125 0 Normal
03/14/2026 05 AM PDT 44.68 3125 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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