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MERCED RIVER - STEVINSON (STVC1)
| Latitude: 37.37º N | Longitude: 120.93º W | Elevation: 82 Feet | | Forecast Type: Official Location |
| Location: Merced County in California | Bulletin Group: San Joaquin | River Group: San Joaquin |
| Issuance Time: | May 18 2026 at 7:28 AM PDT | Next Issuance: | May 19 2026 at 9:00 AM PDT
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| Action/Monitor: 68.0 Feet | Minor Flood: 71.0 Feet | Moderate Flood: 73.8 Feet | Major Flood: 75.0 Feet |
# Tabular Observed and Forecast Hydrograph Information
#
# Location: Merced River - Stevinson (STVC1)
#
# File Generation Time: 05/18/2026 at 07:29 AM PDT
# Data Interval: 1 Hour
#
# Most Recent Date & Time of Maximum Observed: 05/17/2026 at 09:00 PM PDT
# Maximum Observed Stage: 57.09 Feet
# Maximum Observed Flow: 174 cfs
#
# Earliest Date & Time of Maximum Forecast: 05/18/2026 at 08:00 AM PDT
# Maximum Forecast Stage: 57.04 Feet
# Maximum Forecast Flow: 169 cfs
#
# OBSERVED
#
# Date & Time (Local) Stage (Feet) Flow (cfs) Trend Observed Status
# ---------------------------------------------------------------------------------
05/13/2026 07 AM PDT 56.84 150 Normal
05/13/2026 08 AM PDT 56.82 148 - Normal
05/13/2026 09 AM PDT 56.80 146 - Normal
05/13/2026 10 AM PDT 56.81 147 + Normal
05/13/2026 11 AM PDT 56.81 147 0 Normal
05/13/2026 12 PM PDT 56.80 146 - Normal
05/13/2026 01 PM PDT 56.79 145 - Normal
05/13/2026 02 PM PDT 56.78 144 - Normal
05/13/2026 03 PM PDT 56.78 144 0 Normal
05/13/2026 04 PM PDT 56.77 143 - Normal
05/13/2026 05 PM PDT 56.77 143 0 Normal
05/13/2026 06 PM PDT 56.77 143 0 Normal
05/13/2026 07 PM PDT 56.76 142 - Normal
05/13/2026 08 PM PDT 56.76 142 0 Normal
05/13/2026 09 PM PDT 56.75 141 - Normal
05/13/2026 10 PM PDT 56.74 140 - Normal
05/13/2026 11 PM PDT 56.76 142 + Normal
05/14/2026 12 AM PDT 56.77 143 + Normal
05/14/2026 01 AM PDT 56.75 141 - Normal
05/14/2026 02 AM PDT 56.74 140 - Normal
05/14/2026 03 AM PDT 56.73 139 - Normal
05/14/2026 04 AM PDT 56.73 139 0 Normal
05/14/2026 05 AM PDT 56.73 139 0 Normal
05/14/2026 06 AM PDT 56.75 141 + Normal
05/14/2026 07 AM PDT 56.74 140 - Normal
05/14/2026 08 AM PDT 56.70 137 - Normal
05/14/2026 09 AM PDT 56.67 134 - Normal
05/14/2026 10 AM PDT 56.64 131 - Normal
05/14/2026 11 AM PDT 56.61 128 - Normal
05/14/2026 12 PM PDT 56.59 126 - Normal
05/14/2026 01 PM PDT 56.58 125 - Normal
05/14/2026 02 PM PDT 56.56 123 - Normal
05/14/2026 03 PM PDT 56.55 122 - Normal
05/14/2026 04 PM PDT 56.54 121 - Normal
05/14/2026 05 PM PDT 56.54 121 0 Normal
05/14/2026 06 PM PDT 56.58 125 + Normal
05/14/2026 07 PM PDT 56.60 127 + Normal
05/14/2026 08 PM PDT 56.61 128 + Normal
05/14/2026 09 PM PDT 56.61 128 0 Normal
05/14/2026 10 PM PDT 56.61 128 0 Normal
05/14/2026 11 PM PDT 56.61 128 0 Normal
05/15/2026 12 AM PDT 56.60 127 - Normal
05/15/2026 01 AM PDT 56.60 127 0 Normal
05/15/2026 02 AM PDT 56.60 127 0 Normal
05/15/2026 03 AM PDT 56.59 126 - Normal
05/15/2026 04 AM PDT 56.58 125 - Normal
05/15/2026 05 AM PDT 56.58 125 0 Normal
05/15/2026 06 AM PDT 56.57 124 - Normal
05/15/2026 07 AM PDT 56.58 125 + Normal
05/15/2026 08 AM PDT 56.55 122 - Normal
05/15/2026 09 AM PDT 56.55 122 0 Normal
05/15/2026 10 AM PDT 56.56 123 + Normal
05/15/2026 11 AM PDT 56.55 122 - Normal
05/15/2026 12 PM PDT 56.57 124 + Normal
05/15/2026 01 PM PDT 56.60 127 + Normal
05/15/2026 02 PM PDT 56.62 129 + Normal
05/15/2026 03 PM PDT 56.63 130 + Normal
05/15/2026 04 PM PDT 56.63 130 0 Normal
05/15/2026 05 PM PDT 56.66 133 + Normal
05/15/2026 06 PM PDT 56.69 136 + Normal
05/15/2026 07 PM PDT 56.70 137 + Normal
05/15/2026 08 PM PDT 56.71 138 + Normal
05/15/2026 09 PM PDT 56.73 139 + Normal
05/15/2026 10 PM PDT 56.74 140 + Normal
05/15/2026 11 PM PDT 56.74 140 0 Normal
05/16/2026 12 AM PDT 56.74 140 0 Normal
05/16/2026 01 AM PDT 56.70 137 - Normal
05/16/2026 02 AM PDT 56.67 134 - Normal
05/16/2026 03 AM PDT 56.66 133 - Normal
05/16/2026 04 AM PDT 56.66 133 0 Normal
05/16/2026 05 AM PDT 56.66 133 0 Normal
05/16/2026 06 AM PDT 56.66 133 0 Normal
05/16/2026 07 AM PDT 56.67 134 + Normal
05/16/2026 08 AM PDT 56.67 134 0 Normal
05/16/2026 09 AM PDT 56.67 134 0 Normal
05/16/2026 10 AM PDT 56.67 134 0 Normal
05/16/2026 11 AM PDT 56.66 133 - Normal
05/16/2026 12 PM PDT 56.66 133 0 Normal
05/16/2026 01 PM PDT 56.67 134 + Normal
05/16/2026 02 PM PDT 56.79 145 + Normal
05/16/2026 03 PM PDT 56.82 148 + Normal
05/16/2026 04 PM PDT 56.80 146 - Normal
05/16/2026 05 PM PDT 56.77 143 - Normal
05/16/2026 06 PM PDT 56.75 141 - Normal
05/16/2026 07 PM PDT 56.71 138 - Normal
05/16/2026 08 PM PDT 56.70 137 - Normal
05/16/2026 09 PM PDT 56.70 137 0 Normal
05/16/2026 10 PM PDT 56.70 137 0 Normal
05/16/2026 11 PM PDT 56.70 137 0 Normal
05/17/2026 12 AM PDT 56.70 137 0 Normal
05/17/2026 01 AM PDT 56.71 138 + Normal
05/17/2026 02 AM PDT 56.73 139 + Normal
05/17/2026 03 AM PDT 56.73 139 0 Normal
05/17/2026 04 AM PDT 56.74 140 + Normal
05/17/2026 05 AM PDT 56.76 142 + Normal
05/17/2026 06 AM PDT 56.78 144 + Normal
05/17/2026 07 AM PDT 56.81 147 + Normal
05/17/2026 08 AM PDT 56.83 149 + Normal
05/17/2026 09 AM PDT 56.85 151 + Normal
05/17/2026 10 AM PDT 56.87 153 + Normal
05/17/2026 11 AM PDT 56.89 155 + Normal
05/17/2026 12 PM PDT 56.92 158 + Normal
05/17/2026 01 PM PDT 56.93 159 + Normal
05/17/2026 02 PM PDT 56.95 161 + Normal
05/17/2026 03 PM PDT 56.96 162 + Normal
05/17/2026 04 PM PDT 56.96 162 0 Normal
05/17/2026 05 PM PDT 56.98 163 + Normal
05/17/2026 06 PM PDT 56.99 164 + Normal
05/17/2026 07 PM PDT 57.05 170 + Normal
05/17/2026 08 PM PDT 57.09 174 + Normal
05/17/2026 09 PM PDT 57.09 174 0 Normal
05/17/2026 10 PM PDT 57.07 172 - Normal
05/17/2026 11 PM PDT 57.05 170 - Normal
05/18/2026 12 AM PDT 57.05 170 0 Normal
05/18/2026 01 AM PDT 57.05 170 0 Normal
05/18/2026 02 AM PDT 57.04 169 - Normal
05/18/2026 03 AM PDT 57.04 169 0 Normal
05/18/2026 04 AM PDT 57.03 168 - Normal
05/18/2026 05 AM PDT 57.04 169 + Normal
05/18/2026 06 AM PDT 57.04 169 0 Normal
05/18/2026 07 AM PDT 57.04 169 0 Normal
#
# FORECAST
#
# Date & Time (Local) Stage (Feet) Flow (cfs) Trend Forecast Status
# ---------------------------------------------------------------------------------
05/18/2026 08 AM PDT 57.04 169 Normal
05/18/2026 09 AM PDT 57.03 168 - Normal
05/18/2026 10 AM PDT 57.03 168 0 Normal
05/18/2026 11 AM PDT 57.03 168 0 Normal
05/18/2026 12 PM PDT 57.02 167 - Normal
05/18/2026 01 PM PDT 57.02 167 0 Normal
05/18/2026 02 PM PDT 57.02 167 0 Normal
05/18/2026 03 PM PDT 57.01 166 - Normal
05/18/2026 04 PM PDT 57.01 166 0 Normal
05/18/2026 05 PM PDT 57.00 165 - Normal
05/18/2026 06 PM PDT 57.00 165 0 Normal
05/18/2026 07 PM PDT 56.99 164 - Normal
05/18/2026 08 PM PDT 56.99 164 0 Normal
05/18/2026 09 PM PDT 56.99 164 0 Normal
05/18/2026 10 PM PDT 56.98 163 - Normal
05/18/2026 11 PM PDT 56.98 163 0 Normal
05/19/2026 12 AM PDT 56.97 163 - Normal
05/19/2026 01 AM PDT 56.97 163 0 Normal
05/19/2026 02 AM PDT 56.96 162 - Normal
05/19/2026 03 AM PDT 56.96 162 0 Normal
05/19/2026 04 AM PDT 56.96 162 0 Normal
05/19/2026 05 AM PDT 56.96 162 0 Normal
05/19/2026 06 AM PDT 56.96 162 0 Normal
05/19/2026 07 AM PDT 56.95 161 - Normal
05/19/2026 08 AM PDT 56.95 161 0 Normal
05/19/2026 09 AM PDT 56.95 161 0 Normal
05/19/2026 10 AM PDT 56.95 161 0 Normal
05/19/2026 11 AM PDT 56.95 161 0 Normal
05/19/2026 12 PM PDT 56.95 161 0 Normal
05/19/2026 01 PM PDT 56.95 161 0 Normal
05/19/2026 02 PM PDT 56.95 161 0 Normal
05/19/2026 03 PM PDT 56.94 160 - Normal
05/19/2026 04 PM PDT 56.94 160 0 Normal
05/19/2026 05 PM PDT 56.94 160 0 Normal
05/19/2026 06 PM PDT 56.94 160 0 Normal
05/19/2026 07 PM PDT 56.94 160 0 Normal
05/19/2026 08 PM PDT 56.94 160 0 Normal
05/19/2026 09 PM PDT 56.94 160 0 Normal
05/19/2026 10 PM PDT 56.94 160 0 Normal
05/19/2026 11 PM PDT 56.94 160 0 Normal
05/20/2026 12 AM PDT 56.94 160 0 Normal
05/20/2026 01 AM PDT 56.94 160 0 Normal
05/20/2026 02 AM PDT 56.94 160 0 Normal
05/20/2026 03 AM PDT 56.94 160 0 Normal
05/20/2026 04 AM PDT 56.94 160 0 Normal
05/20/2026 05 AM PDT 56.94 160 0 Normal
05/20/2026 06 AM PDT 56.94 160 0 Normal
05/20/2026 07 AM PDT 56.93 159 - Normal
05/20/2026 08 AM PDT 56.93 159 0 Normal
05/20/2026 09 AM PDT 56.93 159 0 Normal
05/20/2026 10 AM PDT 56.93 159 0 Normal
05/20/2026 11 AM PDT 56.93 159 0 Normal
05/20/2026 12 PM PDT 56.93 159 0 Normal
05/20/2026 01 PM PDT 56.93 159 0 Normal
05/20/2026 02 PM PDT 56.93 159 0 Normal
05/20/2026 03 PM PDT 56.93 159 0 Normal
05/20/2026 04 PM PDT 56.93 159 0 Normal
05/20/2026 05 PM PDT 56.93 159 0 Normal
05/20/2026 06 PM PDT 56.93 159 0 Normal
05/20/2026 07 PM PDT 56.93 159 0 Normal
05/20/2026 08 PM PDT 56.93 159 0 Normal
05/20/2026 09 PM PDT 56.93 159 0 Normal
05/20/2026 10 PM PDT 56.93 159 0 Normal
05/20/2026 11 PM PDT 56.93 159 0 Normal
05/21/2026 12 AM PDT 56.93 159 0 Normal
05/21/2026 01 AM PDT 56.93 159 0 Normal
05/21/2026 02 AM PDT 56.93 159 0 Normal
05/21/2026 03 AM PDT 56.93 159 0 Normal
05/21/2026 04 AM PDT 56.93 159 0 Normal
05/21/2026 05 AM PDT 56.93 159 0 Normal
05/21/2026 06 AM PDT 56.93 159 0 Normal
05/21/2026 07 AM PDT 56.93 159 0 Normal
05/21/2026 08 AM PDT 56.93 159 0 Normal
05/21/2026 09 AM PDT 56.93 159 0 Normal
05/21/2026 10 AM PDT 56.93 159 0 Normal
05/21/2026 11 AM PDT 56.93 159 0 Normal
05/21/2026 12 PM PDT 56.93 159 0 Normal
05/21/2026 01 PM PDT 56.93 159 0 Normal
05/21/2026 02 PM PDT 56.93 159 0 Normal
05/21/2026 03 PM PDT 56.93 159 0 Normal
05/21/2026 04 PM PDT 56.93 159 0 Normal
05/21/2026 05 PM PDT 56.93 159 0 Normal
05/21/2026 06 PM PDT 56.93 159 0 Normal
05/21/2026 07 PM PDT 56.93 159 0 Normal
05/21/2026 08 PM PDT 56.93 159 0 Normal
05/21/2026 09 PM PDT 56.93 159 0 Normal
05/21/2026 10 PM PDT 56.93 159 0 Normal
05/21/2026 11 PM PDT 56.93 159 0 Normal
05/22/2026 12 AM PDT 56.93 159 0 Normal
05/22/2026 01 AM PDT 56.92 158 - Normal
05/22/2026 02 AM PDT 56.92 158 0 Normal
05/22/2026 03 AM PDT 56.92 158 0 Normal
05/22/2026 04 AM PDT 56.92 158 0 Normal
05/22/2026 05 AM PDT 56.92 158 0 Normal
05/22/2026 06 AM PDT 56.92 158 0 Normal
05/22/2026 07 AM PDT 56.92 158 0 Normal
05/22/2026 08 AM PDT 56.92 158 0 Normal
05/22/2026 09 AM PDT 56.92 158 0 Normal
05/22/2026 10 AM PDT 56.92 158 0 Normal
05/22/2026 11 AM PDT 56.92 158 0 Normal
05/22/2026 12 PM PDT 56.92 158 0 Normal
05/22/2026 01 PM PDT 56.92 158 0 Normal
05/22/2026 02 PM PDT 56.92 158 0 Normal
05/22/2026 03 PM PDT 56.92 158 0 Normal
05/22/2026 04 PM PDT 56.92 158 0 Normal
05/22/2026 05 PM PDT 56.92 158 0 Normal
05/22/2026 06 PM PDT 56.92 158 0 Normal
05/22/2026 07 PM PDT 56.92 158 0 Normal
05/22/2026 08 PM PDT 56.92 158 0 Normal
05/22/2026 09 PM PDT 56.92 158 0 Normal
05/22/2026 10 PM PDT 56.92 158 0 Normal
05/22/2026 11 PM PDT 56.92 158 0 Normal
05/23/2026 12 AM PDT 56.92 158 0 Normal
05/23/2026 01 AM PDT 56.92 158 0 Normal
05/23/2026 02 AM PDT 56.92 158 0 Normal
05/23/2026 03 AM PDT 56.92 158 0 Normal
05/23/2026 04 AM PDT 56.92 158 0 Normal
05/23/2026 05 AM PDT 56.92 158 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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