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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: | Jul 29 2026 at 6:27 AM PDT | Next Issuance: | Jul 30 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: 07/29/2026 at 06:28 AM PDT
# Data Interval: 1 Hour
#
# Most Recent Date & Time of Maximum Observed: 07/28/2026 at 07:00 AM PDT
# Maximum Observed Stage: 2.58 Feet
# Maximum Observed Flow: 242 cfs
#
# Earliest Date & Time of Maximum Forecast: 07/29/2026 at 07:00 AM PDT
# Maximum Forecast Stage: 2.39 Feet
# Maximum Forecast Flow: 196 cfs
#
# OBSERVED
#
# Date & Time (Local) Stage (Feet) Flow (cfs) Trend Observed Status
# ---------------------------------------------------------------------------------
07/24/2026 06 AM PDT 2.43 205 Normal
07/24/2026 07 AM PDT 2.45 210 + Normal
07/24/2026 08 AM PDT 2.46 212 + Normal
07/24/2026 09 AM PDT 2.47 215 + Normal
07/24/2026 10 AM PDT 2.46 212 - Normal
07/24/2026 11 AM PDT 2.45 210 - Normal
07/24/2026 12 PM PDT 2.44 208 - Normal
07/24/2026 01 PM PDT 2.45 210 + Normal
07/24/2026 02 PM PDT 2.43 205 - Normal
07/24/2026 03 PM PDT 2.42 203 - Normal
07/24/2026 04 PM PDT 2.44 208 + Normal
07/24/2026 05 PM PDT 2.45 210 + Normal
07/24/2026 06 PM PDT 2.41 201 - Normal
07/24/2026 07 PM PDT 2.38 194 - Normal
07/24/2026 08 PM PDT 2.41 201 + Normal
07/24/2026 09 PM PDT 2.38 194 - Normal
07/24/2026 10 PM PDT 2.40 198 + Normal
07/24/2026 11 PM PDT 2.38 194 - Normal
07/25/2026 12 AM PDT 2.43 205 + Normal
07/25/2026 01 AM PDT 2.42 203 - Normal
07/25/2026 02 AM PDT 2.44 208 + Normal
07/25/2026 03 AM PDT 2.44 208 0 Normal
07/25/2026 04 AM PDT 2.45 210 + Normal
07/25/2026 05 AM PDT 2.44 208 - Normal
07/25/2026 06 AM PDT 2.45 210 + Normal
07/25/2026 07 AM PDT 2.44 208 - Normal
07/25/2026 08 AM PDT 2.42 203 - Normal
07/25/2026 09 AM PDT 2.43 205 + Normal
07/25/2026 10 AM PDT 2.43 205 0 Normal
07/25/2026 11 AM PDT 2.45 210 + Normal
07/25/2026 12 PM PDT 2.46 212 + Normal
07/25/2026 01 PM PDT 2.44 208 - Normal
07/25/2026 02 PM PDT 2.39 196 - Normal
07/25/2026 03 PM PDT 2.42 203 + Normal
07/25/2026 04 PM PDT 2.43 205 + Normal
07/25/2026 05 PM PDT 2.39 196 - Normal
07/25/2026 06 PM PDT 2.38 194 - Normal
07/25/2026 07 PM PDT 2.37 191 - Normal
07/25/2026 08 PM PDT 2.37 191 0 Normal
07/25/2026 09 PM PDT 2.35 187 - Normal
07/25/2026 10 PM PDT 2.35 187 0 Normal
07/25/2026 11 PM PDT 2.37 191 + Normal
07/26/2026 12 AM PDT 2.38 194 + Normal
07/26/2026 01 AM PDT 2.38 194 0 Normal
07/26/2026 02 AM PDT 2.37 191 - Normal
07/26/2026 03 AM PDT 2.38 194 + Normal
07/26/2026 04 AM PDT 2.41 201 + Normal
07/26/2026 05 AM PDT 2.41 201 0 Normal
07/26/2026 06 AM PDT 2.42 203 + Normal
07/26/2026 07 AM PDT 2.42 203 0 Normal
07/26/2026 08 AM PDT 2.42 203 0 Normal
07/26/2026 09 AM PDT 2.42 203 0 Normal
07/26/2026 10 AM PDT 2.42 203 0 Normal
07/26/2026 11 AM PDT 2.40 198 - Normal
07/26/2026 12 PM PDT 2.42 203 + Normal
07/26/2026 01 PM PDT 2.42 203 0 Normal
07/26/2026 02 PM PDT 2.42 203 0 Normal
07/26/2026 03 PM PDT 2.45 210 + Normal
07/26/2026 04 PM PDT 2.41 201 - Normal
07/26/2026 05 PM PDT 2.39 196 - Normal
07/26/2026 06 PM PDT 2.39 196 0 Normal
07/26/2026 07 PM PDT 2.40 198 + Normal
07/26/2026 08 PM PDT 2.41 201 + Normal
07/26/2026 09 PM PDT 2.40 198 - Normal
07/26/2026 10 PM PDT 2.39 196 - Normal
07/26/2026 11 PM PDT 2.41 201 + Normal
07/27/2026 12 AM PDT 2.43 205 + Normal
07/27/2026 01 AM PDT 2.44 208 + Normal
07/27/2026 02 AM PDT 2.45 210 + Normal
07/27/2026 03 AM PDT 2.46 212 + Normal
07/27/2026 04 AM PDT 2.46 212 0 Normal
07/27/2026 05 AM PDT 2.45 210 - Normal
07/27/2026 06 AM PDT 2.44 208 - Normal
07/27/2026 07 AM PDT 2.43 205 - Normal
07/27/2026 08 AM PDT 2.42 203 - Normal
07/27/2026 09 AM PDT 2.39 196 - Normal
07/27/2026 10 AM PDT 2.41 201 + Normal
07/27/2026 11 AM PDT 2.45 210 + Normal
07/27/2026 12 PM PDT 2.47 215 + Normal
07/27/2026 01 PM PDT 2.47 215 0 Normal
07/27/2026 02 PM PDT 2.47 215 0 Normal
07/27/2026 03 PM PDT 2.47 215 0 Normal
07/27/2026 04 PM PDT 2.48 217 + Normal
07/27/2026 05 PM PDT 2.49 220 + Normal
07/27/2026 06 PM PDT 2.49 220 0 Normal
07/27/2026 07 PM PDT 2.48 217 - Normal
07/27/2026 08 PM PDT 2.49 220 + Normal
07/27/2026 09 PM PDT 2.49 220 0 Normal
07/27/2026 10 PM PDT 2.49 220 0 Normal
07/27/2026 11 PM PDT 2.51 225 + Normal
07/28/2026 12 AM PDT 2.51 225 0 Normal
07/28/2026 01 AM PDT 2.53 230 + Normal
07/28/2026 02 AM PDT 2.58 242 + Normal
07/28/2026 03 AM PDT 2.56 237 - Normal
07/28/2026 04 AM PDT 2.54 232 - Normal
07/28/2026 05 AM PDT 2.55 235 + Normal
07/28/2026 06 AM PDT 2.58 242 + Normal
07/28/2026 07 AM PDT 2.58 242 0 Normal
07/28/2026 08 AM PDT 2.55 235 - Normal
07/28/2026 09 AM PDT 2.57 240 + Normal
07/28/2026 10 AM PDT 2.55 235 - Normal
07/28/2026 11 AM PDT 2.55 235 0 Normal
07/28/2026 12 PM PDT 2.54 232 - Normal
07/28/2026 01 PM PDT 2.56 237 + Normal
07/28/2026 02 PM PDT 2.52 227 - Normal
07/28/2026 03 PM PDT 2.51 225 - Normal
07/28/2026 04 PM PDT 2.49 220 - Normal
07/28/2026 05 PM PDT 2.46 212 - Normal
07/28/2026 06 PM PDT 2.45 210 - Normal
07/28/2026 07 PM PDT 2.44 208 - Normal
07/28/2026 08 PM PDT 2.40 198 - Normal
07/28/2026 09 PM PDT 2.37 191 - Normal
07/28/2026 10 PM PDT 2.32 180 - Normal
07/28/2026 11 PM PDT 2.32 180 0 Normal
07/29/2026 12 AM PDT 2.38 194 + Normal
07/29/2026 01 AM PDT 2.38 194 0 Normal
07/29/2026 02 AM PDT 2.41 201 + Normal
07/29/2026 03 AM PDT 2.42 203 + Normal
07/29/2026 04 AM PDT 2.46 212 + Normal
07/29/2026 05 AM PDT 2.44 208 - Normal
07/29/2026 06 AM PDT 2.42 203 - Normal
#
# FORECAST
#
# Date & Time (Local) Stage (Feet) Flow (cfs) Trend Forecast Status
# ---------------------------------------------------------------------------------
07/29/2026 07 AM PDT 2.39 196 Normal
07/29/2026 08 AM PDT 2.38 194 - Normal
07/29/2026 09 AM PDT 2.38 194 0 Normal
07/29/2026 10 AM PDT 2.37 191 - Normal
07/29/2026 11 AM PDT 2.37 191 0 Normal
07/29/2026 12 PM PDT 2.37 191 0 Normal
07/29/2026 01 PM PDT 2.37 191 0 Normal
07/29/2026 02 PM PDT 2.36 189 - Normal
07/29/2026 03 PM PDT 2.35 187 - Normal
07/29/2026 04 PM PDT 2.35 187 0 Normal
07/29/2026 05 PM PDT 2.34 184 - Normal
07/29/2026 06 PM PDT 2.34 184 0 Normal
07/29/2026 07 PM PDT 2.34 184 0 Normal
07/29/2026 08 PM PDT 2.34 184 0 Normal
07/29/2026 09 PM PDT 2.34 184 0 Normal
07/29/2026 10 PM PDT 2.34 184 0 Normal
07/29/2026 11 PM PDT 2.34 184 0 Normal
07/30/2026 12 AM PDT 2.35 187 + Normal
07/30/2026 01 AM PDT 2.36 189 + Normal
07/30/2026 02 AM PDT 2.36 189 0 Normal
07/30/2026 03 AM PDT 2.36 189 0 Normal
07/30/2026 04 AM PDT 2.36 189 0 Normal
07/30/2026 05 AM PDT 2.36 189 0 Normal
07/30/2026 06 AM PDT 2.36 189 0 Normal
07/30/2026 07 AM PDT 2.36 189 0 Normal
07/30/2026 08 AM PDT 2.36 189 0 Normal
07/30/2026 09 AM PDT 2.36 189 0 Normal
07/30/2026 10 AM PDT 2.36 189 0 Normal
07/30/2026 11 AM PDT 2.36 189 0 Normal
07/30/2026 12 PM PDT 2.36 189 0 Normal
07/30/2026 01 PM PDT 2.36 189 0 Normal
07/30/2026 02 PM PDT 2.36 189 0 Normal
07/30/2026 03 PM PDT 2.36 189 0 Normal
07/30/2026 04 PM PDT 2.36 189 0 Normal
07/30/2026 05 PM PDT 2.36 189 0 Normal
07/30/2026 06 PM PDT 2.36 189 0 Normal
07/30/2026 07 PM PDT 2.35 187 - Normal
07/30/2026 08 PM PDT 2.35 187 0 Normal
07/30/2026 09 PM PDT 2.35 187 0 Normal
07/30/2026 10 PM PDT 2.35 187 0 Normal
07/30/2026 11 PM PDT 2.35 187 0 Normal
07/31/2026 12 AM PDT 2.35 187 0 Normal
07/31/2026 01 AM PDT 2.35 187 0 Normal
07/31/2026 02 AM PDT 2.35 187 0 Normal
07/31/2026 03 AM PDT 2.35 187 0 Normal
07/31/2026 04 AM PDT 2.35 187 0 Normal
07/31/2026 05 AM PDT 2.35 187 0 Normal
07/31/2026 06 AM PDT 2.35 187 0 Normal
07/31/2026 07 AM PDT 2.35 187 0 Normal
07/31/2026 08 AM PDT 2.35 187 0 Normal
07/31/2026 09 AM PDT 2.35 187 0 Normal
07/31/2026 10 AM PDT 2.35 187 0 Normal
07/31/2026 11 AM PDT 2.35 187 0 Normal
07/31/2026 12 PM PDT 2.35 187 0 Normal
07/31/2026 01 PM PDT 2.35 187 0 Normal
07/31/2026 02 PM PDT 2.35 187 0 Normal
07/31/2026 03 PM PDT 2.35 187 0 Normal
07/31/2026 04 PM PDT 2.35 187 0 Normal
07/31/2026 05 PM PDT 2.35 187 0 Normal
07/31/2026 06 PM PDT 2.35 187 0 Normal
07/31/2026 07 PM PDT 2.35 187 0 Normal
07/31/2026 08 PM PDT 2.35 187 0 Normal
07/31/2026 09 PM PDT 2.34 184 - Normal
07/31/2026 10 PM PDT 2.34 184 0 Normal
07/31/2026 11 PM PDT 2.34 184 0 Normal
08/01/2026 12 AM PDT 2.34 184 0 Normal
08/01/2026 01 AM PDT 2.34 184 0 Normal
08/01/2026 02 AM PDT 2.34 184 0 Normal
08/01/2026 03 AM PDT 2.34 184 0 Normal
08/01/2026 04 AM PDT 2.34 184 0 Normal
08/01/2026 05 AM PDT 2.34 184 0 Normal
08/01/2026 06 AM PDT 2.34 184 0 Normal
08/01/2026 07 AM PDT 2.34 184 0 Normal
08/01/2026 08 AM PDT 2.34 184 0 Normal
08/01/2026 09 AM PDT 2.34 184 0 Normal
08/01/2026 10 AM PDT 2.34 184 0 Normal
08/01/2026 11 AM PDT 2.34 184 0 Normal
08/01/2026 12 PM PDT 2.34 184 0 Normal
08/01/2026 01 PM PDT 2.34 184 0 Normal
08/01/2026 02 PM PDT 2.34 184 0 Normal
08/01/2026 03 PM PDT 2.34 184 0 Normal
08/01/2026 04 PM PDT 2.34 184 0 Normal
08/01/2026 05 PM PDT 2.34 184 0 Normal
08/01/2026 06 PM PDT 2.34 184 0 Normal
08/01/2026 07 PM PDT 2.34 184 0 Normal
08/01/2026 08 PM PDT 2.34 184 0 Normal
08/01/2026 09 PM PDT 2.33 182 - Normal
08/01/2026 10 PM PDT 2.33 182 0 Normal
08/01/2026 11 PM PDT 2.33 182 0 Normal
08/02/2026 12 AM PDT 2.33 182 0 Normal
08/02/2026 01 AM PDT 2.33 182 0 Normal
08/02/2026 02 AM PDT 2.33 182 0 Normal
08/02/2026 03 AM PDT 2.33 182 0 Normal
08/02/2026 04 AM PDT 2.33 182 0 Normal
08/02/2026 05 AM PDT 2.33 182 0 Normal
08/02/2026 06 AM PDT 2.33 182 0 Normal
08/02/2026 07 AM PDT 2.33 182 0 Normal
08/02/2026 08 AM PDT 2.33 182 0 Normal
08/02/2026 09 AM PDT 2.33 182 0 Normal
08/02/2026 10 AM PDT 2.33 182 0 Normal
08/02/2026 11 AM PDT 2.33 182 0 Normal
08/02/2026 12 PM PDT 2.33 182 0 Normal
08/02/2026 01 PM PDT 2.33 182 0 Normal
08/02/2026 02 PM PDT 2.33 182 0 Normal
08/02/2026 03 PM PDT 2.33 182 0 Normal
08/02/2026 04 PM PDT 2.33 182 0 Normal
08/02/2026 05 PM PDT 2.33 182 0 Normal
08/02/2026 06 PM PDT 2.33 182 0 Normal
08/02/2026 07 PM PDT 2.33 182 0 Normal
08/02/2026 08 PM PDT 2.33 182 0 Normal
08/02/2026 09 PM PDT 2.33 182 0 Normal
08/02/2026 10 PM PDT 2.33 182 0 Normal
08/02/2026 11 PM PDT 2.33 182 0 Normal
08/03/2026 12 AM PDT 2.33 182 0 Normal
08/03/2026 01 AM PDT 2.33 182 0 Normal
08/03/2026 02 AM PDT 2.32 180 - Normal
08/03/2026 03 AM PDT 2.32 180 0 Normal
08/03/2026 04 AM PDT 2.32 180 0 Normal
08/03/2026 05 AM PDT 2.32 180 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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