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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: | Oct 21 2026 at 7:24 AM PDT | Next Issuance: | Oct 22 2026 at 9:00 AM PDT
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| Action: 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: 10/21/2026 at 07:25 AM PDT
# Data Interval: 1 Hour
#
# Most Recent Date & Time of Maximum Observed: 10/20/2026 at 09:00 PM PDT
# Maximum Observed Stage: 2.75 Feet
# Maximum Observed Flow: 304 cfs
#
# Earliest Date & Time of Maximum Forecast: 10/22/2026 at 06:00 AM PDT
# Maximum Forecast Stage: 3.69 Feet
# Maximum Forecast Flow: 660 cfs
#
# OBSERVED
#
# Date & Time (Local) Stage (Feet) Flow (cfs) Trend Observed Status
# ---------------------------------------------------------------------------------
10/16/2026 07 AM PDT 2.53 242 Normal
10/16/2026 08 AM PDT 2.53 242 0 Normal
10/16/2026 09 AM PDT 2.53 242 0 Normal
10/16/2026 10 AM PDT 2.53 242 0 Normal
10/16/2026 11 AM PDT 2.55 248 + Normal
10/16/2026 12 PM PDT 2.63 269 + Normal
10/16/2026 01 PM PDT 2.59 258 - Normal
10/16/2026 02 PM PDT 2.56 250 - Normal
10/16/2026 03 PM PDT 2.54 245 - Normal
10/16/2026 04 PM PDT 2.51 237 - Normal
10/16/2026 05 PM PDT 2.51 237 0 Normal
10/16/2026 06 PM PDT 2.51 237 0 Normal
10/16/2026 07 PM PDT 2.52 240 + Normal
10/16/2026 08 PM PDT 2.54 245 + Normal
10/16/2026 09 PM PDT 2.57 253 + Normal
10/16/2026 10 PM PDT 2.58 256 + Normal
10/16/2026 11 PM PDT 2.57 253 - Normal
10/17/2026 12 AM PDT 2.57 253 0 Normal
10/17/2026 01 AM PDT 2.56 250 - Normal
10/17/2026 02 AM PDT 2.56 250 0 Normal
10/17/2026 03 AM PDT 2.55 248 - Normal
10/17/2026 04 AM PDT 2.54 245 - Normal
10/17/2026 05 AM PDT 2.53 242 - Normal
10/17/2026 06 AM PDT 2.53 242 0 Normal
10/17/2026 07 AM PDT 2.55 248 + Normal
10/17/2026 08 AM PDT 2.58 256 + Normal
10/17/2026 09 AM PDT 2.58 256 0 Normal
10/17/2026 10 AM PDT 2.57 253 - Normal
10/17/2026 11 AM PDT 2.59 258 + Normal
10/17/2026 12 PM PDT 2.59 258 0 Normal
10/17/2026 01 PM PDT 2.56 250 - Normal
10/17/2026 02 PM PDT 2.54 245 - Normal
10/17/2026 03 PM PDT 2.56 250 + Normal
10/17/2026 04 PM PDT 2.54 245 - Normal
10/17/2026 05 PM PDT 2.55 248 + Normal
10/17/2026 06 PM PDT 2.51 237 - Normal
10/17/2026 07 PM PDT 2.53 242 + Normal
10/17/2026 08 PM PDT 2.55 248 + Normal
10/17/2026 09 PM PDT 2.52 240 - Normal
10/17/2026 10 PM PDT 2.56 250 + Normal
10/17/2026 11 PM PDT 2.56 250 0 Normal
10/18/2026 12 AM PDT 2.56 250 0 Normal
10/18/2026 01 AM PDT 2.60 261 + Normal
10/18/2026 02 AM PDT 2.58 256 - Normal
10/18/2026 03 AM PDT 2.57 253 - Normal
10/18/2026 04 AM PDT 2.56 250 - Normal
10/18/2026 05 AM PDT 2.55 248 - Normal
10/18/2026 06 AM PDT 2.55 248 0 Normal
10/18/2026 07 AM PDT 2.51 237 - Normal
10/18/2026 08 AM PDT 2.53 242 + Normal
10/18/2026 09 AM PDT 2.52 240 - Normal
10/18/2026 10 AM PDT 2.52 240 0 Normal
10/18/2026 11 AM PDT 2.52 240 0 Normal
10/18/2026 12 PM PDT 2.55 248 + Normal
10/18/2026 01 PM PDT 2.59 258 + Normal
10/18/2026 02 PM PDT 2.59 258 0 Normal
10/18/2026 03 PM PDT 2.61 264 + Normal
10/18/2026 04 PM PDT 2.59 258 - Normal
10/18/2026 05 PM PDT 2.60 261 + Normal
10/18/2026 06 PM PDT 2.58 256 - Normal
10/18/2026 07 PM PDT 2.56 250 - Normal
10/18/2026 08 PM PDT 2.53 242 - Normal
10/18/2026 09 PM PDT 2.51 237 - Normal
10/18/2026 10 PM PDT 2.48 230 - Normal
10/18/2026 11 PM PDT 2.49 232 + Normal
10/19/2026 12 AM PDT 2.53 242 + Normal
10/19/2026 01 AM PDT 2.56 250 + Normal
10/19/2026 02 AM PDT 2.58 256 + Normal
10/19/2026 03 AM PDT 2.57 253 - Normal
10/19/2026 04 AM PDT 2.60 261 + Normal
10/19/2026 05 AM PDT 2.56 250 - Normal
10/19/2026 06 AM PDT 2.57 253 + Normal
10/19/2026 07 AM PDT 2.58 256 + Normal
10/19/2026 08 AM PDT 2.60 261 + Normal
10/19/2026 09 AM PDT 2.61 264 + Normal
10/19/2026 10 AM PDT 2.64 272 + Normal
10/19/2026 11 AM PDT 2.64 272 0 Normal
10/19/2026 12 PM PDT 2.65 275 + Normal
10/19/2026 01 PM PDT 2.65 275 0 Normal
10/19/2026 02 PM PDT 2.66 278 + Normal
10/19/2026 03 PM PDT 2.71 292 + Normal
10/19/2026 04 PM PDT 2.67 280 - Normal
10/19/2026 05 PM PDT 2.69 286 + Normal
10/19/2026 06 PM PDT 2.69 286 0 Normal
10/19/2026 07 PM PDT 2.69 286 0 Normal
10/19/2026 08 PM PDT 2.70 289 + Normal
10/19/2026 09 PM PDT 2.69 286 - Normal
10/19/2026 10 PM PDT 2.67 280 - Normal
10/19/2026 11 PM PDT 2.62 267 - Normal
10/20/2026 12 AM PDT 2.67 280 + Normal
10/20/2026 01 AM PDT 2.68 283 + Normal
10/20/2026 02 AM PDT 2.64 272 - Normal
10/20/2026 03 AM PDT 2.65 275 + Normal
10/20/2026 04 AM PDT 2.65 275 0 Normal
10/20/2026 05 AM PDT 2.68 283 + Normal
10/20/2026 06 AM PDT 2.68 283 0 Normal
10/20/2026 07 AM PDT 2.70 289 + Normal
10/20/2026 08 AM PDT 2.69 286 - Normal
10/20/2026 09 AM PDT 2.69 286 0 Normal
10/20/2026 10 AM PDT 2.69 286 0 Normal
10/20/2026 11 AM PDT 2.68 283 - Normal
10/20/2026 12 PM PDT 2.65 275 - Normal
10/20/2026 01 PM PDT 2.63 269 - Normal
10/20/2026 02 PM PDT 2.64 272 + Normal
10/20/2026 03 PM PDT 2.64 272 0 Normal
10/20/2026 04 PM PDT 2.63 269 - Normal
10/20/2026 05 PM PDT 2.64 272 + Normal
10/20/2026 06 PM PDT 2.68 283 + Normal
10/20/2026 07 PM PDT 2.71 292 + Normal
10/20/2026 08 PM PDT 2.75 304 + Normal
10/20/2026 09 PM PDT 2.75 304 0 Normal
10/20/2026 10 PM PDT 2.72 295 - Normal
10/20/2026 11 PM PDT 2.68 283 - Normal
10/21/2026 12 AM PDT 2.64 272 - Normal
10/21/2026 01 AM PDT 2.61 264 - Normal
10/21/2026 02 AM PDT 2.57 253 - Normal
10/21/2026 03 AM PDT 2.56 250 - Normal
10/21/2026 04 AM PDT 2.56 250 0 Normal
10/21/2026 05 AM PDT 2.54 245 - Normal
10/21/2026 06 AM PDT 2.55 248 + Normal
10/21/2026 07 AM PDT 2.55 248 0 Normal
#
# FORECAST
#
# Date & Time (Local) Stage (Feet) Flow (cfs) Trend Forecast Status
# ---------------------------------------------------------------------------------
10/21/2026 08 AM PDT 2.54 245 Normal
10/21/2026 09 AM PDT 2.54 245 0 Normal
10/21/2026 10 AM PDT 2.55 248 + Normal
10/21/2026 11 AM PDT 2.54 245 - Normal
10/21/2026 12 PM PDT 2.51 237 - Normal
10/21/2026 01 PM PDT 2.48 230 - Normal
10/21/2026 02 PM PDT 2.46 225 - Normal
10/21/2026 03 PM PDT 2.46 225 0 Normal
10/21/2026 04 PM PDT 2.46 225 0 Normal
10/21/2026 05 PM PDT 2.47 227 + Normal
10/21/2026 06 PM PDT 2.48 230 + Normal
10/21/2026 07 PM PDT 2.51 237 + Normal
10/21/2026 08 PM PDT 2.54 245 + Normal
10/21/2026 09 PM PDT 2.58 256 + Normal
10/21/2026 10 PM PDT 2.65 275 + Normal
10/21/2026 11 PM PDT 2.76 307 + Normal
10/22/2026 12 AM PDT 2.91 354 + Normal
10/22/2026 01 AM PDT 3.05 401 + Normal
10/22/2026 02 AM PDT 3.17 445 + Normal
10/22/2026 03 AM PDT 3.31 499 + Normal
10/22/2026 04 AM PDT 3.50 578 + Normal
10/22/2026 05 AM PDT 3.65 644 + Normal
10/22/2026 06 AM PDT 3.69 660 + Normal
10/22/2026 07 AM PDT 3.67 652 - Normal
10/22/2026 08 AM PDT 3.63 636 - Normal
10/22/2026 09 AM PDT 3.60 623 - Normal
10/22/2026 10 AM PDT 3.55 600 - Normal
10/22/2026 11 AM PDT 3.50 578 - Normal
10/22/2026 12 PM PDT 3.47 565 - Normal
10/22/2026 01 PM PDT 3.43 548 - Normal
10/22/2026 02 PM PDT 3.40 536 - Normal
10/22/2026 03 PM PDT 3.38 527 - Normal
10/22/2026 04 PM PDT 3.36 519 - Normal
10/22/2026 05 PM PDT 3.34 511 - Normal
10/22/2026 06 PM PDT 3.32 503 - Normal
10/22/2026 07 PM PDT 3.28 487 - Normal
10/22/2026 08 PM PDT 3.24 471 - Normal
10/22/2026 09 PM PDT 3.20 456 - Normal
10/22/2026 10 PM PDT 3.16 441 - Normal
10/22/2026 11 PM PDT 3.14 433 - Normal
10/23/2026 12 AM PDT 3.22 463 + Normal
10/23/2026 01 AM PDT 3.32 503 + Normal
10/23/2026 02 AM PDT 3.30 495 - Normal
10/23/2026 03 AM PDT 3.23 467 - Normal
10/23/2026 04 AM PDT 3.17 445 - Normal
10/23/2026 05 AM PDT 3.11 422 - Normal
10/23/2026 06 AM PDT 3.05 401 - Normal
10/23/2026 07 AM PDT 3.00 384 - Normal
10/23/2026 08 AM PDT 2.96 370 - Normal
10/23/2026 09 AM PDT 2.94 363 - Normal
10/23/2026 10 AM PDT 2.93 360 - Normal
10/23/2026 11 AM PDT 2.92 357 - Normal
10/23/2026 12 PM PDT 2.91 354 - Normal
10/23/2026 01 PM PDT 2.90 350 - Normal
10/23/2026 02 PM PDT 2.88 344 - Normal
10/23/2026 03 PM PDT 2.87 341 - Normal
10/23/2026 04 PM PDT 2.85 334 - Normal
10/23/2026 05 PM PDT 2.81 322 - Normal
10/23/2026 06 PM PDT 2.77 310 - Normal
10/23/2026 07 PM PDT 2.73 298 - Normal
10/23/2026 08 PM PDT 2.69 286 - Normal
10/23/2026 09 PM PDT 2.67 280 - Normal
10/23/2026 10 PM PDT 2.65 275 - Normal
10/23/2026 11 PM PDT 2.63 269 - Normal
10/24/2026 12 AM PDT 2.61 264 - Normal
10/24/2026 01 AM PDT 2.60 261 - Normal
10/24/2026 02 AM PDT 2.59 258 - Normal
10/24/2026 03 AM PDT 2.58 256 - Normal
10/24/2026 04 AM PDT 2.57 253 - Normal
10/24/2026 05 AM PDT 2.55 248 - Normal
10/24/2026 06 AM PDT 2.54 245 - Normal
10/24/2026 07 AM PDT 2.52 240 - Normal
10/24/2026 08 AM PDT 2.50 235 - Normal
10/24/2026 09 AM PDT 2.49 232 - Normal
10/24/2026 10 AM PDT 2.48 230 - Normal
10/24/2026 11 AM PDT 2.47 227 - Normal
10/24/2026 12 PM PDT 2.47 227 0 Normal
10/24/2026 01 PM PDT 2.46 225 - Normal
10/24/2026 02 PM PDT 2.46 225 0 Normal
10/24/2026 03 PM PDT 2.46 225 0 Normal
10/24/2026 04 PM PDT 2.45 222 - Normal
10/24/2026 05 PM PDT 2.45 222 0 Normal
10/24/2026 06 PM PDT 2.45 222 0 Normal
10/24/2026 07 PM PDT 2.45 222 0 Normal
10/24/2026 08 PM PDT 2.44 220 - Normal
10/24/2026 09 PM PDT 2.44 220 0 Normal
10/24/2026 10 PM PDT 2.44 220 0 Normal
10/24/2026 11 PM PDT 2.44 220 0 Normal
10/25/2026 12 AM PDT 2.44 220 0 Normal
10/25/2026 01 AM PDT 2.44 220 0 Normal
10/25/2026 02 AM PDT 2.44 220 0 Normal
10/25/2026 03 AM PDT 2.43 217 - Normal
10/25/2026 04 AM PDT 2.43 217 0 Normal
10/25/2026 05 AM PDT 2.44 220 + Normal
10/25/2026 06 AM PDT 2.44 220 0 Normal
10/25/2026 07 AM PDT 2.44 220 0 Normal
10/25/2026 08 AM PDT 2.44 220 0 Normal
10/25/2026 09 AM PDT 2.44 220 0 Normal
10/25/2026 10 AM PDT 2.43 217 - Normal
10/25/2026 11 AM PDT 2.43 217 0 Normal
10/25/2026 12 PM PDT 2.43 217 0 Normal
10/25/2026 01 PM PDT 2.43 217 0 Normal
10/25/2026 02 PM PDT 2.43 217 0 Normal
10/25/2026 03 PM PDT 2.43 217 0 Normal
10/25/2026 04 PM PDT 2.43 217 0 Normal
10/25/2026 05 PM PDT 2.43 217 0 Normal
10/25/2026 06 PM PDT 2.43 217 0 Normal
10/25/2026 07 PM PDT 2.43 217 0 Normal
10/25/2026 08 PM PDT 2.43 217 0 Normal
10/25/2026 09 PM PDT 2.43 217 0 Normal
10/25/2026 10 PM PDT 2.43 217 0 Normal
10/25/2026 11 PM PDT 2.43 217 0 Normal
10/26/2026 12 AM PDT 2.43 217 0 Normal
10/26/2026 01 AM PDT 2.43 217 0 Normal
10/26/2026 02 AM PDT 2.43 217 0 Normal
10/26/2026 03 AM PDT 2.43 217 0 Normal
10/26/2026 04 AM PDT 2.43 217 0 Normal
10/26/2026 05 AM PDT 2.44 220 + 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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