National Weather Service California Nevada River Forecast Center Department of Commerce National Oceanic and Atmospheric Administration National Weather Service

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TRUCKEE RIVER - BELOW DERBY DAM (TBDN2)
Latitude: 39.58º NLongitude: 119.44º WElevation: 4200 Feet
Location: Storey County in NevadaBulletin Group: Eastern SierraRiver Group: Eastern Sierra
Issuance Time: Jul 20 2025 at 7:17 AM PDTNext Issuance: Jul 21 2025 at 9:00 AM PDT
Action/Monitor: 10.0 FeetMinor Flood: 11.0 FeetModerate Flood: N/A Major Flood: N/A


# Tabular Observed and Forecast Hydrograph Information
#
# Location: Truckee River - Below Derby Dam (TBDN2)
#
# File Generation Time:  07/20/2025 at 07:22 AM PDT
# Data Interval:  1 Hour
#
# Most Recent Date & Time of Maximum Observed:  07/17/2025 at 03:00 PM PDT
# Maximum Observed Stage:                       2.94 Feet
# Maximum Observed Flow:                        347 cfs
#
# Earliest Date & Time of Maximum Forecast:     07/25/2025 at 02:00 AM PDT
# Maximum Forecast Stage:                       2.91 Feet
# Maximum Forecast Flow:                        338 cfs
#
# OBSERVED
#
# Date & Time  (Local)    Stage (Feet)     Flow (cfs)     Trend     Observed Status
# ---------------------------------------------------------------------------------
  07/15/2025 07 AM PDT            2.85            319                        Normal
  07/15/2025 08 AM PDT            2.83            313         -              Normal
  07/15/2025 09 AM PDT            2.84            316         +              Normal
  07/15/2025 10 AM PDT            2.84            316         0              Normal
  07/15/2025 11 AM PDT            2.83            313         -              Normal
  07/15/2025 12 PM PDT            2.80            304         -              Normal
  07/15/2025 01 PM PDT            2.81            307         +              Normal
  07/15/2025 02 PM PDT            2.82            310         +              Normal
  07/15/2025 03 PM PDT            2.83            313         +              Normal
  07/15/2025 04 PM PDT            2.81            307         -              Normal
  07/15/2025 05 PM PDT            2.77            295         -              Normal
  07/15/2025 06 PM PDT            2.75            289         -              Normal
  07/15/2025 07 PM PDT            2.74            286         -              Normal
  07/15/2025 08 PM PDT            2.75            289         +              Normal
  07/15/2025 09 PM PDT            2.72            280         -              Normal
  07/15/2025 10 PM PDT            2.72            280         0              Normal
  07/15/2025 11 PM PDT            2.76            292         +              Normal
  07/16/2025 12 AM PDT            2.77            295         +              Normal
  07/16/2025 01 AM PDT            2.75            289         -              Normal
  07/16/2025 02 AM PDT            2.77            295         +              Normal
  07/16/2025 03 AM PDT            2.78            298         +              Normal
  07/16/2025 04 AM PDT            2.81            307         +              Normal
  07/16/2025 05 AM PDT            2.81            307         0              Normal
  07/16/2025 06 AM PDT            2.80            304         -              Normal
  07/16/2025 07 AM PDT            2.78            298         -              Normal
  07/16/2025 08 AM PDT            2.79            301         +              Normal
  07/16/2025 09 AM PDT            2.79            301         0              Normal
  07/16/2025 10 AM PDT            2.81            307         +              Normal
  07/16/2025 11 AM PDT            2.80            304         -              Normal
  07/16/2025 12 PM PDT            2.88            328         +              Normal
  07/16/2025 01 PM PDT            2.88            328         0              Normal
  07/16/2025 02 PM PDT            2.88            328         0              Normal
  07/16/2025 03 PM PDT            2.86            322         -              Normal
  07/16/2025 04 PM PDT            2.83            313         -              Normal
  07/16/2025 05 PM PDT            2.83            313         0              Normal
  07/16/2025 06 PM PDT            2.81            307         -              Normal
  07/16/2025 07 PM PDT            2.83            313         +              Normal
  07/16/2025 08 PM PDT            2.83            313         0              Normal
  07/16/2025 09 PM PDT            2.83            313         0              Normal
  07/16/2025 10 PM PDT            2.82            310         -              Normal
  07/16/2025 11 PM PDT            2.85            319         +              Normal
  07/17/2025 12 AM PDT            2.86            322         +              Normal
  07/17/2025 01 AM PDT            2.88            328         +              Normal
  07/17/2025 02 AM PDT            2.88            328         0              Normal
  07/17/2025 03 AM PDT            2.87            325         -              Normal
  07/17/2025 04 AM PDT            2.87            325         0              Normal
  07/17/2025 05 AM PDT            2.87            325         0              Normal
  07/17/2025 06 AM PDT            2.86            322         -              Normal
  07/17/2025 07 AM PDT            2.84            316         -              Normal
  07/17/2025 08 AM PDT            2.78            298         -              Normal
  07/17/2025 09 AM PDT            2.76            292         -              Normal
  07/17/2025 10 AM PDT            2.76            292         0              Normal
  07/17/2025 11 AM PDT            2.77            295         +              Normal
  07/17/2025 12 PM PDT            2.84            316         +              Normal
  07/17/2025 01 PM PDT            2.87            325         +              Normal
  07/17/2025 02 PM PDT            2.93            344         +              Normal
  07/17/2025 03 PM PDT            2.94            347         +              Normal
  07/17/2025 04 PM PDT            2.92            341         -              Normal
  07/17/2025 05 PM PDT            2.88            328         -              Normal
  07/17/2025 06 PM PDT            2.83            313         -              Normal
  07/17/2025 07 PM PDT            2.85            319         +              Normal
  07/17/2025 08 PM PDT            2.87            325         +              Normal
  07/17/2025 09 PM PDT            2.84            316         -              Normal
  07/17/2025 10 PM PDT            2.84            316         0              Normal
  07/17/2025 11 PM PDT            2.85            319         +              Normal
  07/18/2025 12 AM PDT            2.88            328         +              Normal
  07/18/2025 01 AM PDT            2.88            328         0              Normal
  07/18/2025 02 AM PDT            2.87            325         -              Normal
  07/18/2025 03 AM PDT            2.88            328         +              Normal
  07/18/2025 04 AM PDT            2.85            319         -              Normal
  07/18/2025 05 AM PDT            2.84            316         -              Normal
  07/18/2025 06 AM PDT            2.83            313         -              Normal
  07/18/2025 07 AM PDT            2.83            313         0              Normal
  07/18/2025 08 AM PDT            2.85            319         +              Normal
  07/18/2025 09 AM PDT            2.86            322         +              Normal
  07/18/2025 10 AM PDT            2.85            319         -              Normal
  07/18/2025 11 AM PDT            2.85            319         0              Normal
  07/18/2025 12 PM PDT            2.86            322         +              Normal
  07/18/2025 01 PM PDT            2.89            331         +              Normal
  07/18/2025 02 PM PDT            2.89            331         0              Normal
  07/18/2025 03 PM PDT            2.87            325         -              Normal
  07/18/2025 04 PM PDT            2.85            319         -              Normal
  07/18/2025 05 PM PDT            2.86            322         +              Normal
  07/18/2025 06 PM PDT            2.86            322         0              Normal
  07/18/2025 07 PM PDT            2.83            313         -              Normal
  07/18/2025 08 PM PDT            2.83            313         0              Normal
  07/18/2025 09 PM PDT            2.83            313         0              Normal
  07/18/2025 10 PM PDT            2.83            313         0              Normal
  07/18/2025 11 PM PDT            2.83            313         0              Normal
  07/19/2025 12 AM PDT            2.84            316         +              Normal
  07/19/2025 01 AM PDT            2.87            325         +              Normal
  07/19/2025 02 AM PDT            2.85            319         -              Normal
  07/19/2025 03 AM PDT            2.85            319         0              Normal
  07/19/2025 04 AM PDT            2.84            316         -              Normal
  07/19/2025 05 AM PDT            2.84            316         0              Normal
  07/19/2025 06 AM PDT            2.84            316         0              Normal
  07/19/2025 07 AM PDT            2.85            319         +              Normal
  07/19/2025 08 AM PDT            2.86            322         +              Normal
  07/19/2025 09 AM PDT            2.88            328         +              Normal
  07/19/2025 10 AM PDT            2.90            334         +              Normal
  07/19/2025 11 AM PDT            2.88            328         -              Normal
  07/19/2025 12 PM PDT            2.89            331         +              Normal
  07/19/2025 01 PM PDT            2.89            331         0              Normal
  07/19/2025 02 PM PDT            2.90            334         +              Normal
  07/19/2025 03 PM PDT            2.89            331         -              Normal
  07/19/2025 04 PM PDT            2.89            331         0              Normal
  07/19/2025 05 PM PDT            2.87            325         -              Normal
  07/19/2025 06 PM PDT            2.86            322         -              Normal
  07/19/2025 07 PM PDT            2.83            313         -              Normal
  07/19/2025 08 PM PDT            2.85            319         +              Normal
  07/19/2025 09 PM PDT            2.86            322         +              Normal
  07/19/2025 10 PM PDT            2.88            328         +              Normal
  07/19/2025 11 PM PDT            2.87            325         -              Normal
  07/20/2025 12 AM PDT            2.89            331         +              Normal
  07/20/2025 01 AM PDT            2.88            328         -              Normal
  07/20/2025 02 AM PDT            2.87            325         -              Normal
  07/20/2025 03 AM PDT            2.87            325         0              Normal
  07/20/2025 04 AM PDT            2.88            328         +              Normal
  07/20/2025 05 AM PDT            2.87            325         -              Normal
  07/20/2025 06 AM PDT            2.87            325         0              Normal
  07/20/2025 07 AM PDT            2.88            328         +              Normal
#
# FORECAST
#
# Date & Time  (Local)    Stage (Feet)     Flow (cfs)     Trend     Forecast Status
# ---------------------------------------------------------------------------------
  07/20/2025 08 AM PDT            2.87            325                        Normal
  07/20/2025 09 AM PDT            2.86            322         -              Normal
  07/20/2025 10 AM PDT            2.85            319         -              Normal
  07/20/2025 11 AM PDT            2.86            322         +              Normal
  07/20/2025 12 PM PDT            2.85            319         -              Normal
  07/20/2025 01 PM PDT            2.84            316         -              Normal
  07/20/2025 02 PM PDT            2.84            316         0              Normal
  07/20/2025 03 PM PDT            2.84            316         0              Normal
  07/20/2025 04 PM PDT            2.83            313         -              Normal
  07/20/2025 05 PM PDT            2.83            313         0              Normal
  07/20/2025 06 PM PDT            2.83            313         0              Normal
  07/20/2025 07 PM PDT            2.83            313         0              Normal
  07/20/2025 08 PM PDT            2.83            313         0              Normal
  07/20/2025 09 PM PDT            2.83            313         0              Normal
  07/20/2025 10 PM PDT            2.84            316         +              Normal
  07/20/2025 11 PM PDT            2.85            319         +              Normal
  07/21/2025 12 AM PDT            2.85            319         0              Normal
  07/21/2025 01 AM PDT            2.85            319         0              Normal
  07/21/2025 02 AM PDT            2.85            319         0              Normal
  07/21/2025 03 AM PDT            2.85            319         0              Normal
  07/21/2025 04 AM PDT            2.85            319         0              Normal
  07/21/2025 05 AM PDT            2.85            319         0              Normal
  07/21/2025 06 AM PDT            2.85            319         0              Normal
  07/21/2025 07 AM PDT            2.86            322         +              Normal
  07/21/2025 08 AM PDT            2.86            322         0              Normal
  07/21/2025 09 AM PDT            2.86            322         0              Normal
  07/21/2025 10 AM PDT            2.86            322         0              Normal
  07/21/2025 11 AM PDT            2.86            322         0              Normal
  07/21/2025 12 PM PDT            2.86            322         0              Normal
  07/21/2025 01 PM PDT            2.86            322         0              Normal
  07/21/2025 02 PM PDT            2.86            322         0              Normal
  07/21/2025 03 PM PDT            2.86            322         0              Normal
  07/21/2025 04 PM PDT            2.86            322         0              Normal
  07/21/2025 05 PM PDT            2.86            322         0              Normal
  07/21/2025 06 PM PDT            2.86            322         0              Normal
  07/21/2025 07 PM PDT            2.86            322         0              Normal
  07/21/2025 08 PM PDT            2.86            322         0              Normal
  07/21/2025 09 PM PDT            2.86            322         0              Normal
  07/21/2025 10 PM PDT            2.86            322         0              Normal
  07/21/2025 11 PM PDT            2.86            322         0              Normal
  07/22/2025 12 AM PDT            2.86            322         0              Normal
  07/22/2025 01 AM PDT            2.86            322         0              Normal
  07/22/2025 02 AM PDT            2.86            322         0              Normal
  07/22/2025 03 AM PDT            2.86            322         0              Normal
  07/22/2025 04 AM PDT            2.86            322         0              Normal
  07/22/2025 05 AM PDT            2.86            322         0              Normal
  07/22/2025 06 AM PDT            2.86            322         0              Normal
  07/22/2025 07 AM PDT            2.86            322         0              Normal
  07/22/2025 08 AM PDT            2.86            322         0              Normal
  07/22/2025 09 AM PDT            2.86            322         0              Normal
  07/22/2025 10 AM PDT            2.86            322         0              Normal
  07/22/2025 11 AM PDT            2.86            322         0              Normal
  07/22/2025 12 PM PDT            2.85            319         -              Normal
  07/22/2025 01 PM PDT            2.85            319         0              Normal
  07/22/2025 02 PM PDT            2.85            319         0              Normal
  07/22/2025 03 PM PDT            2.85            319         0              Normal
  07/22/2025 04 PM PDT            2.85            319         0              Normal
  07/22/2025 05 PM PDT            2.85            319         0              Normal
  07/22/2025 06 PM PDT            2.85            319         0              Normal
  07/22/2025 07 PM PDT            2.85            319         0              Normal
  07/22/2025 08 PM PDT            2.85            319         0              Normal
  07/22/2025 09 PM PDT            2.85            319         0              Normal
  07/22/2025 10 PM PDT            2.85            319         0              Normal
  07/22/2025 11 PM PDT            2.85            319         0              Normal
  07/23/2025 12 AM PDT            2.85            319         0              Normal
  07/23/2025 01 AM PDT            2.85            319         0              Normal
  07/23/2025 02 AM PDT            2.85            319         0              Normal
  07/23/2025 03 AM PDT            2.85            319         0              Normal
  07/23/2025 04 AM PDT            2.85            319         0              Normal
  07/23/2025 05 AM PDT            2.85            319         0              Normal
  07/23/2025 06 AM PDT            2.85            319         0              Normal
  07/23/2025 07 AM PDT            2.85            319         0              Normal
  07/23/2025 08 AM PDT            2.85            319         0              Normal
  07/23/2025 09 AM PDT            2.85            319         0              Normal
  07/23/2025 10 AM PDT            2.85            319         0              Normal
  07/23/2025 11 AM PDT            2.85            319         0              Normal
  07/23/2025 12 PM PDT            2.85            319         0              Normal
  07/23/2025 01 PM PDT            2.85            319         0              Normal
  07/23/2025 02 PM PDT            2.85            319         0              Normal
  07/23/2025 03 PM PDT            2.85            319         0              Normal
  07/23/2025 04 PM PDT            2.85            319         0              Normal
  07/23/2025 05 PM PDT            2.85            319         0              Normal
  07/23/2025 06 PM PDT            2.85            319         0              Normal
  07/23/2025 07 PM PDT            2.85            319         0              Normal
  07/23/2025 08 PM PDT            2.85            319         0              Normal
  07/23/2025 09 PM PDT            2.85            319         0              Normal
  07/23/2025 10 PM PDT            2.85            319         0              Normal
  07/23/2025 11 PM PDT            2.85            319         0              Normal
  07/24/2025 12 AM PDT            2.85            319         0              Normal
  07/24/2025 01 AM PDT            2.85            319         0              Normal
  07/24/2025 02 AM PDT            2.85            319         0              Normal
  07/24/2025 03 AM PDT            2.85            319         0              Normal
  07/24/2025 04 AM PDT            2.85            319         0              Normal
  07/24/2025 05 AM PDT            2.85            319         0              Normal
  07/24/2025 06 AM PDT            2.85            319         0              Normal
  07/24/2025 07 AM PDT            2.85            319         0              Normal
  07/24/2025 08 AM PDT            2.85            319         0              Normal
  07/24/2025 09 AM PDT            2.85            319         0              Normal
  07/24/2025 10 AM PDT            2.85            319         0              Normal
  07/24/2025 11 AM PDT            2.85            319         0              Normal
  07/24/2025 12 PM PDT            2.85            319         0              Normal
  07/24/2025 01 PM PDT            2.85            319         0              Normal
  07/24/2025 02 PM PDT            2.85            319         0              Normal
  07/24/2025 03 PM PDT            2.85            319         0              Normal
  07/24/2025 04 PM PDT            2.85            319         0              Normal
  07/24/2025 05 PM PDT            2.85            319         0              Normal
  07/24/2025 06 PM PDT            2.85            319         0              Normal
  07/24/2025 07 PM PDT            2.85            319         0              Normal
  07/24/2025 08 PM PDT            2.85            319         0              Normal
  07/24/2025 09 PM PDT            2.85            319         0              Normal
  07/24/2025 10 PM PDT            2.86            322         +              Normal
  07/24/2025 11 PM PDT            2.87            325         +              Normal
  07/25/2025 12 AM PDT            2.89            331         +              Normal
  07/25/2025 01 AM PDT            2.90            334         +              Normal
  07/25/2025 02 AM PDT            2.91            338         +              Normal
  07/25/2025 03 AM PDT            2.91            338         0              Normal
  07/25/2025 04 AM PDT            2.90            334         -              Normal
  07/25/2025 05 AM PDT            2.89            331         -              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.