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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: | Jun 05 2026 at 8:06 AM PDT | Next Issuance: | Jun 06 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: 06/05/2026 at 08:06 AM PDT
# Data Interval: 1 Hour
#
# Most Recent Date & Time of Maximum Observed: 06/01/2026 at 09:00 AM PDT
# Maximum Observed Stage: 36.91 Feet
# Maximum Observed Flow: 209 cfs
#
# Earliest Date & Time of Maximum Forecast: 06/09/2026 at 01:00 AM PDT
# Maximum Forecast Stage: 36.44 Feet
# Maximum Forecast Flow: 109 cfs
#
# OBSERVED
#
# Date & Time (Local) Stage (Feet) Flow (cfs) Trend Observed Status
# ---------------------------------------------------------------------------------
05/31/2026 08 AM PDT 36.87 199 Normal
05/31/2026 09 AM PDT 36.87 199 0 Normal
05/31/2026 10 AM PDT 36.88 202 + Normal
05/31/2026 11 AM PDT 36.89 204 + Normal
05/31/2026 12 PM PDT 36.88 202 - Normal
05/31/2026 01 PM PDT 36.88 202 0 Normal
05/31/2026 02 PM PDT 36.86 197 - Normal
05/31/2026 03 PM PDT 36.86 197 0 Normal
05/31/2026 04 PM PDT 36.86 197 0 Normal
05/31/2026 05 PM PDT 36.86 197 0 Normal
05/31/2026 06 PM PDT 36.87 199 + Normal
05/31/2026 07 PM PDT 36.88 202 + Normal
05/31/2026 08 PM PDT 36.89 204 + Normal
05/31/2026 09 PM PDT 36.89 204 0 Normal
05/31/2026 10 PM PDT 36.89 204 0 Normal
05/31/2026 11 PM PDT 36.89 204 0 Normal
06/01/2026 12 AM PDT 36.89 204 0 Normal
06/01/2026 01 AM PDT 36.90 207 + Normal
06/01/2026 02 AM PDT 36.89 204 - Normal
06/01/2026 03 AM PDT 36.89 204 0 Normal
06/01/2026 04 AM PDT 36.89 204 0 Normal
06/01/2026 05 AM PDT 36.89 204 0 Normal
06/01/2026 06 AM PDT 36.90 207 + Normal
06/01/2026 07 AM PDT 36.91 209 + Normal
06/01/2026 08 AM PDT 36.91 209 0 Normal
06/01/2026 09 AM PDT 36.91 209 0 Normal
06/01/2026 10 AM PDT 36.90 207 - Normal
06/01/2026 11 AM PDT 36.90 207 0 Normal
06/01/2026 12 PM PDT 36.89 204 - Normal
06/01/2026 01 PM PDT 36.88 202 - Normal
06/01/2026 02 PM PDT 36.87 199 - Normal
06/01/2026 03 PM PDT 36.87 199 0 Normal
06/01/2026 04 PM PDT 36.85 195 - Normal
06/01/2026 05 PM PDT 36.85 195 0 Normal
06/01/2026 06 PM PDT 36.84 192 - Normal
06/01/2026 07 PM PDT 36.83 190 - Normal
06/01/2026 08 PM PDT 36.83 190 0 Normal
06/01/2026 09 PM PDT 36.82 188 - Normal
06/01/2026 10 PM PDT 36.82 188 0 Normal
06/01/2026 11 PM PDT 36.81 185 - Normal
06/02/2026 12 AM PDT 36.81 185 0 Normal
06/02/2026 01 AM PDT 36.81 185 0 Normal
06/02/2026 02 AM PDT 36.80 183 - Normal
06/02/2026 03 AM PDT 36.79 181 - Normal
06/02/2026 04 AM PDT 36.79 181 0 Normal
06/02/2026 05 AM PDT 36.79 181 0 Normal
06/02/2026 06 AM PDT 36.79 181 0 Normal
06/02/2026 07 AM PDT 36.80 183 + Normal
06/02/2026 08 AM PDT 36.81 185 + Normal
06/02/2026 09 AM PDT 36.81 185 0 Normal
06/02/2026 10 AM PDT 36.81 185 0 Normal
06/02/2026 11 AM PDT 36.82 188 + Normal
06/02/2026 12 PM PDT 36.81 185 - Normal
06/02/2026 01 PM PDT 36.80 183 - Normal
06/02/2026 02 PM PDT 36.77 176 - Normal
06/02/2026 03 PM PDT 36.76 174 - Normal
06/02/2026 04 PM PDT 36.74 169 - Normal
06/02/2026 05 PM PDT 36.72 164 - Normal
06/02/2026 06 PM PDT 36.70 160 - Normal
06/02/2026 07 PM PDT 36.69 158 - Normal
06/02/2026 08 PM PDT 36.67 154 - Normal
06/02/2026 09 PM PDT 36.65 150 - Normal
06/02/2026 10 PM PDT 36.64 148 - Normal
06/02/2026 11 PM PDT 36.62 144 - Normal
06/03/2026 12 AM PDT 36.61 142 - Normal
06/03/2026 01 AM PDT 36.60 140 - Normal
06/03/2026 02 AM PDT 36.58 136 - Normal
06/03/2026 03 AM PDT 36.57 134 - Normal
06/03/2026 04 AM PDT 36.55 130 - Normal
06/03/2026 05 AM PDT 36.54 128 - Normal
06/03/2026 06 AM PDT 36.53 126 - Normal
06/03/2026 07 AM PDT 36.52 124 - Normal
06/03/2026 08 AM PDT 36.51 122 - Normal
06/03/2026 09 AM PDT 36.51 122 0 Normal
06/03/2026 10 AM PDT 36.50 120 - Normal
06/03/2026 11 AM PDT 36.49 118 - Normal
06/03/2026 12 PM PDT 36.48 117 - Normal
06/03/2026 01 PM PDT 36.46 113 - Normal
06/03/2026 02 PM PDT 36.45 111 - Normal
06/03/2026 03 PM PDT 36.44 109 - Normal
06/03/2026 04 PM PDT 36.42 105 - Normal
06/03/2026 05 PM PDT 36.41 104 - Normal
06/03/2026 06 PM PDT 36.40 102 - Normal
06/03/2026 07 PM PDT 36.39 100 - Normal
06/03/2026 08 PM PDT 36.40 102 + Normal
06/03/2026 09 PM PDT 36.38 98 - Normal
06/03/2026 10 PM PDT 36.37 96 - Normal
06/03/2026 11 PM PDT 36.36 95 - Normal
06/04/2026 12 AM PDT 36.35 93 - Normal
06/04/2026 01 AM PDT 36.34 91 - Normal
06/04/2026 02 AM PDT 36.34 91 0 Normal
06/04/2026 03 AM PDT 36.34 91 0 Normal
06/04/2026 04 AM PDT 36.34 91 0 Normal
06/04/2026 05 AM PDT 36.34 91 0 Normal
06/04/2026 06 AM PDT 36.34 91 0 Normal
06/04/2026 07 AM PDT 36.33 89 - Normal
06/04/2026 08 AM PDT 36.33 89 0 Normal
06/04/2026 09 AM PDT 36.33 89 0 Normal
06/04/2026 10 AM PDT 36.33 89 0 Normal
06/04/2026 11 AM PDT 36.33 89 0 Normal
06/04/2026 12 PM PDT 36.38 98 + Normal
06/04/2026 01 PM PDT 36.39 100 + Normal
06/04/2026 02 PM PDT 36.38 98 - Normal
06/04/2026 03 PM PDT 36.37 96 - Normal
06/04/2026 04 PM PDT 36.36 95 - Normal
06/04/2026 05 PM PDT 36.34 91 - Normal
06/04/2026 06 PM PDT 36.33 89 - Normal
06/04/2026 07 PM PDT 36.32 88 - Normal
06/04/2026 08 PM PDT 36.31 86 - Normal
06/04/2026 09 PM PDT 36.31 86 0 Normal
06/04/2026 10 PM PDT 36.31 86 0 Normal
06/04/2026 11 PM PDT 36.31 86 0 Normal
06/05/2026 12 AM PDT 36.30 84 - Normal
06/05/2026 01 AM PDT 36.30 84 0 Normal
06/05/2026 02 AM PDT 36.30 84 0 Normal
06/05/2026 03 AM PDT 36.31 86 + Normal
06/05/2026 04 AM PDT 36.34 91 + Normal
06/05/2026 05 AM PDT 36.37 96 + Normal
06/05/2026 06 AM PDT 36.41 104 + Normal
06/05/2026 07 AM PDT 36.41 104 0 Normal
#
# FORECAST
#
# Date & Time (Local) Stage (Feet) Flow (cfs) Trend Forecast Status
# ---------------------------------------------------------------------------------
06/05/2026 08 AM PDT 36.41 104 Normal
06/05/2026 09 AM PDT 36.42 105 + Normal
06/05/2026 10 AM PDT 36.42 105 0 Normal
06/05/2026 11 AM PDT 36.42 105 0 Normal
06/05/2026 12 PM PDT 36.42 105 0 Normal
06/05/2026 01 PM PDT 36.42 105 0 Normal
06/05/2026 02 PM PDT 36.42 105 0 Normal
06/05/2026 03 PM PDT 36.42 105 0 Normal
06/05/2026 04 PM PDT 36.42 105 0 Normal
06/05/2026 05 PM PDT 36.42 105 0 Normal
06/05/2026 06 PM PDT 36.42 105 0 Normal
06/05/2026 07 PM PDT 36.42 105 0 Normal
06/05/2026 08 PM PDT 36.42 105 0 Normal
06/05/2026 09 PM PDT 36.42 105 0 Normal
06/05/2026 10 PM PDT 36.42 105 0 Normal
06/05/2026 11 PM PDT 36.42 105 0 Normal
06/06/2026 12 AM PDT 36.42 105 0 Normal
06/06/2026 01 AM PDT 36.42 105 0 Normal
06/06/2026 02 AM PDT 36.42 105 0 Normal
06/06/2026 03 AM PDT 36.42 105 0 Normal
06/06/2026 04 AM PDT 36.42 105 0 Normal
06/06/2026 05 AM PDT 36.42 105 0 Normal
06/06/2026 06 AM PDT 36.42 105 0 Normal
06/06/2026 07 AM PDT 36.42 105 0 Normal
06/06/2026 08 AM PDT 36.42 105 0 Normal
06/06/2026 09 AM PDT 36.42 105 0 Normal
06/06/2026 10 AM PDT 36.42 105 0 Normal
06/06/2026 11 AM PDT 36.42 105 0 Normal
06/06/2026 12 PM PDT 36.42 105 0 Normal
06/06/2026 01 PM PDT 36.42 105 0 Normal
06/06/2026 02 PM PDT 36.42 105 0 Normal
06/06/2026 03 PM PDT 36.42 105 0 Normal
06/06/2026 04 PM PDT 36.43 107 + Normal
06/06/2026 05 PM PDT 36.43 107 0 Normal
06/06/2026 06 PM PDT 36.43 107 0 Normal
06/06/2026 07 PM PDT 36.43 107 0 Normal
06/06/2026 08 PM PDT 36.43 107 0 Normal
06/06/2026 09 PM PDT 36.43 107 0 Normal
06/06/2026 10 PM PDT 36.43 107 0 Normal
06/06/2026 11 PM PDT 36.43 107 0 Normal
06/07/2026 12 AM PDT 36.43 107 0 Normal
06/07/2026 01 AM PDT 36.43 107 0 Normal
06/07/2026 02 AM PDT 36.43 107 0 Normal
06/07/2026 03 AM PDT 36.43 107 0 Normal
06/07/2026 04 AM PDT 36.43 107 0 Normal
06/07/2026 05 AM PDT 36.43 107 0 Normal
06/07/2026 06 AM PDT 36.43 107 0 Normal
06/07/2026 07 AM PDT 36.43 107 0 Normal
06/07/2026 08 AM PDT 36.43 107 0 Normal
06/07/2026 09 AM PDT 36.43 107 0 Normal
06/07/2026 10 AM PDT 36.43 107 0 Normal
06/07/2026 11 AM PDT 36.43 107 0 Normal
06/07/2026 12 PM PDT 36.43 107 0 Normal
06/07/2026 01 PM PDT 36.43 107 0 Normal
06/07/2026 02 PM PDT 36.43 107 0 Normal
06/07/2026 03 PM PDT 36.43 107 0 Normal
06/07/2026 04 PM PDT 36.43 107 0 Normal
06/07/2026 05 PM PDT 36.43 107 0 Normal
06/07/2026 06 PM PDT 36.43 107 0 Normal
06/07/2026 07 PM PDT 36.43 107 0 Normal
06/07/2026 08 PM PDT 36.43 107 0 Normal
06/07/2026 09 PM PDT 36.43 107 0 Normal
06/07/2026 10 PM PDT 36.43 107 0 Normal
06/07/2026 11 PM PDT 36.43 107 0 Normal
06/08/2026 12 AM PDT 36.43 107 0 Normal
06/08/2026 01 AM PDT 36.43 107 0 Normal
06/08/2026 02 AM PDT 36.43 107 0 Normal
06/08/2026 03 AM PDT 36.43 107 0 Normal
06/08/2026 04 AM PDT 36.43 107 0 Normal
06/08/2026 05 AM PDT 36.43 107 0 Normal
06/08/2026 06 AM PDT 36.43 107 0 Normal
06/08/2026 07 AM PDT 36.43 107 0 Normal
06/08/2026 08 AM PDT 36.43 107 0 Normal
06/08/2026 09 AM PDT 36.43 107 0 Normal
06/08/2026 10 AM PDT 36.43 107 0 Normal
06/08/2026 11 AM PDT 36.43 107 0 Normal
06/08/2026 12 PM PDT 36.43 107 0 Normal
06/08/2026 01 PM PDT 36.43 107 0 Normal
06/08/2026 02 PM PDT 36.43 107 0 Normal
06/08/2026 03 PM PDT 36.43 107 0 Normal
06/08/2026 04 PM PDT 36.43 107 0 Normal
06/08/2026 05 PM PDT 36.43 107 0 Normal
06/08/2026 06 PM PDT 36.43 107 0 Normal
06/08/2026 07 PM PDT 36.43 107 0 Normal
06/08/2026 08 PM PDT 36.43 107 0 Normal
06/08/2026 09 PM PDT 36.43 107 0 Normal
06/08/2026 10 PM PDT 36.43 107 0 Normal
06/08/2026 11 PM PDT 36.43 107 0 Normal
06/09/2026 12 AM PDT 36.43 107 0 Normal
06/09/2026 01 AM PDT 36.44 109 + Normal
06/09/2026 02 AM PDT 36.44 109 0 Normal
06/09/2026 03 AM PDT 36.44 109 0 Normal
06/09/2026 04 AM PDT 36.44 109 0 Normal
06/09/2026 05 AM PDT 36.44 109 0 Normal
06/09/2026 06 AM PDT 36.44 109 0 Normal
06/09/2026 07 AM PDT 36.44 109 0 Normal
06/09/2026 08 AM PDT 36.44 109 0 Normal
06/09/2026 09 AM PDT 36.44 109 0 Normal
06/09/2026 10 AM PDT 36.44 109 0 Normal
06/09/2026 11 AM PDT 36.44 109 0 Normal
06/09/2026 12 PM PDT 36.44 109 0 Normal
06/09/2026 01 PM PDT 36.44 109 0 Normal
06/09/2026 02 PM PDT 36.44 109 0 Normal
06/09/2026 03 PM PDT 36.44 109 0 Normal
06/09/2026 04 PM PDT 36.44 109 0 Normal
06/09/2026 05 PM PDT 36.44 109 0 Normal
06/09/2026 06 PM PDT 36.44 109 0 Normal
06/09/2026 07 PM PDT 36.44 109 0 Normal
06/09/2026 08 PM PDT 36.44 109 0 Normal
06/09/2026 09 PM PDT 36.44 109 0 Normal
06/09/2026 10 PM PDT 36.44 109 0 Normal
06/09/2026 11 PM PDT 36.44 109 0 Normal
06/10/2026 12 AM PDT 36.44 109 0 Normal
06/10/2026 01 AM PDT 36.44 109 0 Normal
06/10/2026 02 AM PDT 36.44 109 0 Normal
06/10/2026 03 AM PDT 36.44 109 0 Normal
06/10/2026 04 AM PDT 36.44 109 0 Normal
06/10/2026 05 AM PDT 36.44 109 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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