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TRUCKEE RIVER - BELOW DERBY DAM (TBDN2)
| Latitude: 39.58º N | Longitude: 119.44º W | Elevation: 4200 Feet | | Forecast Type: Unofficial Location |
| Location: Storey County in Nevada | Bulletin Group: Eastern Sierra | River Group: Eastern Sierra |
| Issuance Time: | Aug 12 2026 at 7:09 AM PDT | Next Issuance: | Aug 13 2026 at 9:00 AM PDT
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| Action/Monitor: 10.0 Feet | Minor Flood: 11.0 Feet | Moderate Flood: N/A | Major Flood: N/A |
# Tabular Observed and Forecast Hydrograph Information
#
# Location: Truckee River - Below Derby Dam (TBDN2)
#
# File Generation Time: 08/12/2026 at 07:10 AM PDT
# Data Interval: 1 Hour
#
# Most Recent Date & Time of Maximum Observed: 08/08/2026 at 11:00 AM PDT
# Maximum Observed Stage: 2.34 Feet
# Maximum Observed Flow: 184 cfs
#
# Earliest Date & Time of Maximum Forecast: 08/13/2026 at 11:00 PM PDT
# Maximum Forecast Stage: 2.56 Feet
# Maximum Forecast Flow: 237 cfs
#
# OBSERVED
#
# Date & Time (Local) Stage (Feet) Flow (cfs) Trend Observed Status
# ---------------------------------------------------------------------------------
08/07/2026 07 AM PDT 2.23 160 Normal
08/07/2026 08 AM PDT 2.22 158 - Normal
08/07/2026 09 AM PDT 2.22 158 0 Normal
08/07/2026 10 AM PDT 2.22 158 0 Normal
08/07/2026 11 AM PDT 2.22 158 0 Normal
08/07/2026 12 PM PDT 2.21 156 - Normal
08/07/2026 01 PM PDT 2.21 156 0 Normal
08/07/2026 02 PM PDT 2.22 158 + Normal
08/07/2026 03 PM PDT 2.22 158 0 Normal
08/07/2026 04 PM PDT 2.21 156 - Normal
08/07/2026 05 PM PDT 2.21 156 0 Normal
08/07/2026 06 PM PDT 2.21 156 0 Normal
08/07/2026 07 PM PDT 2.20 154 - Normal
08/07/2026 08 PM PDT 2.18 150 - Normal
08/07/2026 09 PM PDT 2.18 150 0 Normal
08/07/2026 10 PM PDT 2.19 152 + Normal
08/07/2026 11 PM PDT 2.20 154 + Normal
08/08/2026 12 AM PDT 2.23 160 + Normal
08/08/2026 01 AM PDT 2.26 166 + Normal
08/08/2026 02 AM PDT 2.28 171 + Normal
08/08/2026 03 AM PDT 2.27 169 - Normal
08/08/2026 04 AM PDT 2.28 171 + Normal
08/08/2026 05 AM PDT 2.29 173 + Normal
08/08/2026 06 AM PDT 2.28 171 - Normal
08/08/2026 07 AM PDT 2.28 171 0 Normal
08/08/2026 08 AM PDT 2.30 175 + Normal
08/08/2026 09 AM PDT 2.30 175 0 Normal
08/08/2026 10 AM PDT 2.30 175 0 Normal
08/08/2026 11 AM PDT 2.34 184 + Normal
08/08/2026 12 PM PDT 2.33 182 - Normal
08/08/2026 01 PM PDT 2.30 175 - Normal
08/08/2026 02 PM PDT 2.31 177 + Normal
08/08/2026 03 PM PDT 2.30 175 - Normal
08/08/2026 04 PM PDT 2.27 169 - Normal
08/08/2026 05 PM PDT 2.23 160 - Normal
08/08/2026 06 PM PDT 2.25 164 + Normal
08/08/2026 07 PM PDT 2.21 156 - Normal
08/08/2026 08 PM PDT 2.19 152 - Normal
08/08/2026 09 PM PDT 2.19 152 0 Normal
08/08/2026 10 PM PDT 2.23 160 + Normal
08/08/2026 11 PM PDT 2.17 148 - Normal
08/09/2026 12 AM PDT 2.19 152 + Normal
08/09/2026 01 AM PDT 2.23 160 + Normal
08/09/2026 02 AM PDT 2.25 164 + Normal
08/09/2026 03 AM PDT 2.24 162 - Normal
08/09/2026 04 AM PDT 2.26 166 + Normal
08/09/2026 05 AM PDT 2.26 166 0 Normal
08/09/2026 06 AM PDT 2.23 160 - Normal
08/09/2026 07 AM PDT 2.24 162 + Normal
08/09/2026 08 AM PDT 2.26 166 + Normal
08/09/2026 09 AM PDT 2.26 166 0 Normal
08/09/2026 10 AM PDT 2.28 171 + Normal
08/09/2026 11 AM PDT 2.28 171 0 Normal
08/09/2026 12 PM PDT 2.27 169 - Normal
08/09/2026 01 PM PDT 2.25 164 - Normal
08/09/2026 02 PM PDT 2.28 171 + Normal
08/09/2026 03 PM PDT 2.29 173 + Normal
08/09/2026 04 PM PDT 2.27 169 - Normal
08/09/2026 05 PM PDT 2.27 169 0 Normal
08/09/2026 06 PM PDT 2.27 169 0 Normal
08/09/2026 07 PM PDT 2.29 173 + Normal
08/09/2026 08 PM PDT 2.25 164 - Normal
08/09/2026 09 PM PDT 2.25 164 0 Normal
08/09/2026 10 PM PDT 2.25 164 0 Normal
08/09/2026 11 PM PDT 2.28 171 + Normal
08/10/2026 12 AM PDT 2.27 169 - Normal
08/10/2026 01 AM PDT 2.30 175 + Normal
08/10/2026 02 AM PDT 2.29 173 - Normal
08/10/2026 03 AM PDT 2.30 175 + Normal
08/10/2026 04 AM PDT 2.31 177 + Normal
08/10/2026 05 AM PDT 2.30 175 - Normal
08/10/2026 06 AM PDT 2.29 173 - Normal
08/10/2026 07 AM PDT 2.28 171 - Normal
08/10/2026 08 AM PDT 2.24 162 - Normal
08/10/2026 09 AM PDT 2.24 162 0 Normal
08/10/2026 10 AM PDT 2.24 162 0 Normal
08/10/2026 11 AM PDT 2.25 164 + Normal
08/10/2026 12 PM PDT 2.23 160 - Normal
08/10/2026 01 PM PDT 2.29 173 + Normal
08/10/2026 02 PM PDT 2.33 182 + Normal
08/10/2026 03 PM PDT 2.30 175 - Normal
08/10/2026 04 PM PDT 2.32 180 + Normal
08/10/2026 05 PM PDT 2.33 182 + Normal
08/10/2026 06 PM PDT 2.30 175 - Normal
08/10/2026 07 PM PDT 2.30 175 0 Normal
08/10/2026 08 PM PDT 2.26 166 - Normal
08/10/2026 09 PM PDT 2.26 166 0 Normal
08/10/2026 10 PM PDT 2.25 164 - Normal
08/10/2026 11 PM PDT 2.27 169 + Normal
08/11/2026 12 AM PDT 2.28 171 + Normal
08/11/2026 01 AM PDT 2.29 173 + Normal
08/11/2026 02 AM PDT 2.29 173 0 Normal
08/11/2026 03 AM PDT 2.29 173 0 Normal
08/11/2026 04 AM PDT 2.29 173 0 Normal
08/11/2026 05 AM PDT 2.32 180 + Normal
08/11/2026 06 AM PDT 2.31 177 - Normal
08/11/2026 07 AM PDT 2.29 173 - Normal
08/11/2026 08 AM PDT 2.30 175 + Normal
08/11/2026 09 AM PDT 2.27 169 - Normal
08/11/2026 10 AM PDT 2.28 171 + Normal
08/11/2026 11 AM PDT 2.28 171 0 Normal
08/11/2026 12 PM PDT 2.28 171 0 Normal
08/11/2026 01 PM PDT 2.27 169 - Normal
08/11/2026 02 PM PDT 2.28 171 + Normal
08/11/2026 03 PM PDT 2.26 166 - Normal
08/11/2026 04 PM PDT 2.26 166 0 Normal
08/11/2026 05 PM PDT 2.26 166 0 Normal
08/11/2026 06 PM PDT 2.23 160 - Normal
08/11/2026 07 PM PDT 2.21 156 - Normal
08/11/2026 08 PM PDT 2.21 156 0 Normal
08/11/2026 09 PM PDT 2.20 154 - Normal
08/11/2026 10 PM PDT 2.19 152 - Normal
08/11/2026 11 PM PDT 2.17 148 - Normal
08/12/2026 12 AM PDT 2.18 150 + Normal
08/12/2026 01 AM PDT 2.17 148 - Normal
08/12/2026 02 AM PDT 2.17 148 0 Normal
08/12/2026 03 AM PDT 2.18 150 + Normal
08/12/2026 04 AM PDT 2.17 148 - Normal
08/12/2026 05 AM PDT 2.15 144 - Normal
08/12/2026 06 AM PDT 2.15 144 0 Normal
08/12/2026 07 AM PDT 2.15 144 0 Normal
#
# FORECAST
#
# Date & Time (Local) Stage (Feet) Flow (cfs) Trend Forecast Status
# ---------------------------------------------------------------------------------
08/12/2026 08 AM PDT 2.15 144 Normal
08/12/2026 09 AM PDT 2.15 144 0 Normal
08/12/2026 10 AM PDT 2.15 144 0 Normal
08/12/2026 11 AM PDT 2.16 146 + Normal
08/12/2026 12 PM PDT 2.17 148 + Normal
08/12/2026 01 PM PDT 2.18 150 + Normal
08/12/2026 02 PM PDT 2.18 150 0 Normal
08/12/2026 03 PM PDT 2.18 150 0 Normal
08/12/2026 04 PM PDT 2.19 152 + Normal
08/12/2026 05 PM PDT 2.20 154 + Normal
08/12/2026 06 PM PDT 2.20 154 0 Normal
08/12/2026 07 PM PDT 2.20 154 0 Normal
08/12/2026 08 PM PDT 2.20 154 0 Normal
08/12/2026 09 PM PDT 2.20 154 0 Normal
08/12/2026 10 PM PDT 2.19 152 - Normal
08/12/2026 11 PM PDT 2.21 156 + Normal
08/13/2026 12 AM PDT 2.25 164 + Normal
08/13/2026 01 AM PDT 2.26 166 + Normal
08/13/2026 02 AM PDT 2.26 166 0 Normal
08/13/2026 03 AM PDT 2.26 166 0 Normal
08/13/2026 04 AM PDT 2.26 166 0 Normal
08/13/2026 05 AM PDT 2.26 166 0 Normal
08/13/2026 06 AM PDT 2.26 166 0 Normal
08/13/2026 07 AM PDT 2.26 166 0 Normal
08/13/2026 08 AM PDT 2.25 164 - Normal
08/13/2026 09 AM PDT 2.25 164 0 Normal
08/13/2026 10 AM PDT 2.24 162 - Normal
08/13/2026 11 AM PDT 2.24 162 0 Normal
08/13/2026 12 PM PDT 2.24 162 0 Normal
08/13/2026 01 PM PDT 2.25 164 + Normal
08/13/2026 02 PM PDT 2.29 173 + Normal
08/13/2026 03 PM PDT 2.32 180 + Normal
08/13/2026 04 PM PDT 2.36 189 + Normal
08/13/2026 05 PM PDT 2.39 196 + Normal
08/13/2026 06 PM PDT 2.41 201 + Normal
08/13/2026 07 PM PDT 2.42 203 + Normal
08/13/2026 08 PM PDT 2.43 205 + Normal
08/13/2026 09 PM PDT 2.45 210 + Normal
08/13/2026 10 PM PDT 2.51 225 + Normal
08/13/2026 11 PM PDT 2.56 237 + Normal
08/14/2026 12 AM PDT 2.55 235 - Normal
08/14/2026 01 AM PDT 2.50 222 - Normal
08/14/2026 02 AM PDT 2.45 210 - Normal
08/14/2026 03 AM PDT 2.43 205 - Normal
08/14/2026 04 AM PDT 2.42 203 - Normal
08/14/2026 05 AM PDT 2.39 196 - Normal
08/14/2026 06 AM PDT 2.36 189 - Normal
08/14/2026 07 AM PDT 2.34 184 - Normal
08/14/2026 08 AM PDT 2.32 180 - Normal
08/14/2026 09 AM PDT 2.31 177 - Normal
08/14/2026 10 AM PDT 2.30 175 - Normal
08/14/2026 11 AM PDT 2.29 173 - Normal
08/14/2026 12 PM PDT 2.28 171 - Normal
08/14/2026 01 PM PDT 2.27 169 - Normal
08/14/2026 02 PM PDT 2.27 169 0 Normal
08/14/2026 03 PM PDT 2.26 166 - Normal
08/14/2026 04 PM PDT 2.25 164 - Normal
08/14/2026 05 PM PDT 2.24 162 - Normal
08/14/2026 06 PM PDT 2.23 160 - Normal
08/14/2026 07 PM PDT 2.22 158 - Normal
08/14/2026 08 PM PDT 2.21 156 - Normal
08/14/2026 09 PM PDT 2.20 154 - Normal
08/14/2026 10 PM PDT 2.20 154 0 Normal
08/14/2026 11 PM PDT 2.20 154 0 Normal
08/15/2026 12 AM PDT 2.20 154 0 Normal
08/15/2026 01 AM PDT 2.19 152 - Normal
08/15/2026 02 AM PDT 2.19 152 0 Normal
08/15/2026 03 AM PDT 2.19 152 0 Normal
08/15/2026 04 AM PDT 2.19 152 0 Normal
08/15/2026 05 AM PDT 2.19 152 0 Normal
08/15/2026 06 AM PDT 2.19 152 0 Normal
08/15/2026 07 AM PDT 2.19 152 0 Normal
08/15/2026 08 AM PDT 2.19 152 0 Normal
08/15/2026 09 AM PDT 2.19 152 0 Normal
08/15/2026 10 AM PDT 2.19 152 0 Normal
08/15/2026 11 AM PDT 2.19 152 0 Normal
08/15/2026 12 PM PDT 2.19 152 0 Normal
08/15/2026 01 PM PDT 2.19 152 0 Normal
08/15/2026 02 PM PDT 2.19 152 0 Normal
08/15/2026 03 PM PDT 2.19 152 0 Normal
08/15/2026 04 PM PDT 2.19 152 0 Normal
08/15/2026 05 PM PDT 2.19 152 0 Normal
08/15/2026 06 PM PDT 2.19 152 0 Normal
08/15/2026 07 PM PDT 2.19 152 0 Normal
08/15/2026 08 PM PDT 2.19 152 0 Normal
08/15/2026 09 PM PDT 2.19 152 0 Normal
08/15/2026 10 PM PDT 2.19 152 0 Normal
08/15/2026 11 PM PDT 2.19 152 0 Normal
08/16/2026 12 AM PDT 2.19 152 0 Normal
08/16/2026 01 AM PDT 2.19 152 0 Normal
08/16/2026 02 AM PDT 2.19 152 0 Normal
08/16/2026 03 AM PDT 2.19 152 0 Normal
08/16/2026 04 AM PDT 2.19 152 0 Normal
08/16/2026 05 AM PDT 2.19 152 0 Normal
08/16/2026 06 AM PDT 2.19 152 0 Normal
08/16/2026 07 AM PDT 2.19 152 0 Normal
08/16/2026 08 AM PDT 2.19 152 0 Normal
08/16/2026 09 AM PDT 2.19 152 0 Normal
08/16/2026 10 AM PDT 2.19 152 0 Normal
08/16/2026 11 AM PDT 2.19 152 0 Normal
08/16/2026 12 PM PDT 2.19 152 0 Normal
08/16/2026 01 PM PDT 2.19 152 0 Normal
08/16/2026 02 PM PDT 2.19 152 0 Normal
08/16/2026 03 PM PDT 2.19 152 0 Normal
08/16/2026 04 PM PDT 2.19 152 0 Normal
08/16/2026 05 PM PDT 2.19 152 0 Normal
08/16/2026 06 PM PDT 2.19 152 0 Normal
08/16/2026 07 PM PDT 2.19 152 0 Normal
08/16/2026 08 PM PDT 2.19 152 0 Normal
08/16/2026 09 PM PDT 2.19 152 0 Normal
08/16/2026 10 PM PDT 2.19 152 0 Normal
08/16/2026 11 PM PDT 2.19 152 0 Normal
08/17/2026 12 AM PDT 2.19 152 0 Normal
08/17/2026 01 AM PDT 2.19 152 0 Normal
08/17/2026 02 AM PDT 2.19 152 0 Normal
08/17/2026 03 AM PDT 2.19 152 0 Normal
08/17/2026 04 AM PDT 2.19 152 0 Normal
08/17/2026 05 AM PDT 2.19 152 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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