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 FeetForecast Type: Unofficial Location
Location: Storey County in NevadaBulletin Group: Eastern SierraRiver Group: Eastern Sierra
Issuance Time: Apr 13 2026 at 1:34 PM PDTNext Issuance: Apr 14 2026 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:  04/13/2026 at 01:36 PM PDT
# Data Interval:  1 Hour
#
# Most Recent Date & Time of Maximum Observed:  04/11/2026 at 12:00 PM PDT
# Maximum Observed Stage:                       4.31 Feet
# Maximum Observed Flow:                        999 cfs
#
# Earliest Date & Time of Maximum Forecast:     04/13/2026 at 02:00 PM PDT
# Maximum Forecast Stage:                       4.09 Feet
# Maximum Forecast Flow:                        891 cfs
#
# OBSERVED
#
# Date & Time  (Local)    Stage (Feet)     Flow (cfs)     Trend     Observed Status
# ---------------------------------------------------------------------------------
  04/08/2026 01 PM PDT            3.99            843                        Normal
  04/08/2026 02 PM PDT            4.08            886         +              Normal
  04/08/2026 03 PM PDT            4.10            895         +              Normal
  04/08/2026 04 PM PDT            4.12            905         +              Normal
  04/08/2026 05 PM PDT            4.10            895         -              Normal
  04/08/2026 06 PM PDT            4.12            905         +              Normal
  04/08/2026 07 PM PDT            4.12            905         0              Normal
  04/08/2026 08 PM PDT            4.13            910         +              Normal
  04/08/2026 09 PM PDT            4.13            910         0              Normal
  04/08/2026 10 PM PDT            4.11            900         -              Normal
  04/08/2026 11 PM PDT            4.10            895         -              Normal
  04/09/2026 12 AM PDT            4.08            886         -              Normal
  04/09/2026 01 AM PDT            4.09            891         +              Normal
  04/09/2026 02 AM PDT            4.07            881         -              Normal
  04/09/2026 03 AM PDT            4.08            886         +              Normal
  04/09/2026 04 AM PDT            4.06            876         -              Normal
  04/09/2026 05 AM PDT            4.07            881         +              Normal
  04/09/2026 06 AM PDT            4.04            867         -              Normal
  04/09/2026 07 AM PDT            4.05            872         +              Normal
  04/09/2026 08 AM PDT            4.05            872         0              Normal
  04/09/2026 09 AM PDT            4.04            867         -              Normal
  04/09/2026 10 AM PDT            4.15            919         +              Normal
  04/09/2026 11 AM PDT            4.18            934         +              Normal
  04/09/2026 12 PM PDT            4.21            949         +              Normal
  04/09/2026 01 PM PDT            4.20            944         -              Normal
  04/09/2026 02 PM PDT            4.22            954         +              Normal
  04/09/2026 03 PM PDT            4.22            954         0              Normal
  04/09/2026 04 PM PDT            4.20            944         -              Normal
  04/09/2026 05 PM PDT            4.22            954         +              Normal
  04/09/2026 06 PM PDT            4.21            949         -              Normal
  04/09/2026 07 PM PDT            4.20            944         -              Normal
  04/09/2026 08 PM PDT            4.20            944         0              Normal
  04/09/2026 09 PM PDT            4.20            944         0              Normal
  04/09/2026 10 PM PDT            4.19            939         -              Normal
  04/09/2026 11 PM PDT            4.19            939         0              Normal
  04/10/2026 12 AM PDT            4.19            939         0              Normal
  04/10/2026 01 AM PDT            4.19            939         0              Normal
  04/10/2026 02 AM PDT            4.17            929         -              Normal
  04/10/2026 03 AM PDT            4.14            915         -              Normal
  04/10/2026 04 AM PDT            4.13            910         -              Normal
  04/10/2026 05 AM PDT            4.11            900         -              Normal
  04/10/2026 06 AM PDT            4.12            905         +              Normal
  04/10/2026 07 AM PDT            4.10            895         -              Normal
  04/10/2026 08 AM PDT            4.09            891         -              Normal
  04/10/2026 09 AM PDT            4.10            895         +              Normal
  04/10/2026 10 AM PDT            4.09            891         -              Normal
  04/10/2026 11 AM PDT            4.20            944         +              Normal
  04/10/2026 12 PM PDT            4.19            939         -              Normal
  04/10/2026 01 PM PDT            4.20            944         +              Normal
  04/10/2026 02 PM PDT            4.20            944         0              Normal
  04/10/2026 03 PM PDT            4.18            934         -              Normal
  04/10/2026 04 PM PDT            4.20            944         +              Normal
  04/10/2026 05 PM PDT            4.19            939         -              Normal
  04/10/2026 06 PM PDT            4.18            934         -              Normal
  04/10/2026 07 PM PDT            4.17            929         -              Normal
  04/10/2026 08 PM PDT            4.17            929         0              Normal
  04/10/2026 09 PM PDT            4.20            944         +              Normal
  04/10/2026 10 PM PDT            4.15            919         -              Normal
  04/10/2026 11 PM PDT            4.12            905         -              Normal
  04/11/2026 12 AM PDT            4.12            905         0              Normal
  04/11/2026 01 AM PDT            4.14            915         +              Normal
  04/11/2026 02 AM PDT            4.15            919         +              Normal
  04/11/2026 03 AM PDT            4.15            919         0              Normal
  04/11/2026 04 AM PDT            4.16            924         +              Normal
  04/11/2026 05 AM PDT            4.15            919         -              Normal
  04/11/2026 06 AM PDT            4.13            910         -              Normal
  04/11/2026 07 AM PDT            4.13            910         0              Normal
  04/11/2026 08 AM PDT            4.14            915         +              Normal
  04/11/2026 09 AM PDT            4.17            929         +              Normal
  04/11/2026 10 AM PDT            4.21            949         +              Normal
  04/11/2026 11 AM PDT            4.25            969         +              Normal
  04/11/2026 12 PM PDT            4.31            999         +              Normal
  04/11/2026 01 PM PDT            4.30            994         -              Normal
  04/11/2026 02 PM PDT            4.27            979         -              Normal
  04/11/2026 03 PM PDT            4.29            989         +              Normal
  04/11/2026 04 PM PDT            4.29            989         0              Normal
  04/11/2026 05 PM PDT            4.28            984         -              Normal
  04/11/2026 06 PM PDT            4.25            969         -              Normal
  04/11/2026 07 PM PDT            4.26            974         +              Normal
  04/11/2026 08 PM PDT            4.29            989         +              Normal
  04/11/2026 09 PM PDT            4.22            954         -              Normal
  04/11/2026 10 PM PDT            4.19            939         -              Normal
  04/11/2026 11 PM PDT            4.15            919         -              Normal
  04/12/2026 12 AM PDT            4.13            910         -              Normal
  04/12/2026 01 AM PDT            4.09            891         -              Normal
  04/12/2026 02 AM PDT            4.08            886         -              Normal
  04/12/2026 03 AM PDT            4.08            886         0              Normal
  04/12/2026 04 AM PDT            4.08            886         0              Normal
  04/12/2026 05 AM PDT            4.10            895         +              Normal
  04/12/2026 06 AM PDT            4.11            900         +              Normal
  04/12/2026 07 AM PDT            4.10            895         -              Normal
  04/12/2026 08 AM PDT            4.12            905         +              Normal
  04/12/2026 09 AM PDT            4.18            934         +              Normal
  04/12/2026 10 AM PDT            4.20            944         +              Normal
  04/12/2026 11 AM PDT            4.22            954         +              Normal
  04/12/2026 12 PM PDT            4.20            944         -              Normal
  04/12/2026 01 PM PDT            4.24            964         +              Normal
  04/12/2026 02 PM PDT            4.22            954         -              Normal
  04/12/2026 03 PM PDT            4.24            964         +              Normal
  04/12/2026 04 PM PDT            4.25            969         +              Normal
  04/12/2026 05 PM PDT            4.25            969         0              Normal
  04/12/2026 06 PM PDT            4.22            954         -              Normal
  04/12/2026 07 PM PDT            4.19            939         -              Normal
  04/12/2026 08 PM PDT            4.20            944         +              Normal
  04/12/2026 09 PM PDT            4.20            944         0              Normal
  04/12/2026 10 PM PDT            4.19            939         -              Normal
  04/12/2026 11 PM PDT            4.17            929         -              Normal
  04/13/2026 12 AM PDT            4.14            915         -              Normal
  04/13/2026 01 AM PDT            4.12            905         -              Normal
  04/13/2026 02 AM PDT            4.13            910         +              Normal
  04/13/2026 03 AM PDT            4.13            910         0              Normal
  04/13/2026 04 AM PDT            4.11            900         -              Normal
  04/13/2026 05 AM PDT            4.11            900         0              Normal
  04/13/2026 06 AM PDT            4.14            915         +              Normal
  04/13/2026 07 AM PDT            4.12            905         -              Normal
  04/13/2026 08 AM PDT            4.08            886         -              Normal
  04/13/2026 09 AM PDT            4.10            895         +              Normal
  04/13/2026 10 AM PDT            4.08            886         -              Normal
  04/13/2026 11 AM PDT            4.09            891         +              Normal
  04/13/2026 12 PM PDT            4.08            886         -              Normal
  04/13/2026 01 PM PDT            4.08            886         0              Normal
#
# FORECAST
#
# Date & Time  (Local)    Stage (Feet)     Flow (cfs)     Trend     Forecast Status
# ---------------------------------------------------------------------------------
  04/13/2026 02 PM PDT            4.09            891                        Normal
  04/13/2026 03 PM PDT            4.08            886         -              Normal
  04/13/2026 04 PM PDT            4.08            886         0              Normal
  04/13/2026 05 PM PDT            4.07            881         -              Normal
  04/13/2026 06 PM PDT            4.07            881         0              Normal
  04/13/2026 07 PM PDT            4.06            876         -              Normal
  04/13/2026 08 PM PDT            4.05            872         -              Normal
  04/13/2026 09 PM PDT            4.05            872         0              Normal
  04/13/2026 10 PM PDT            4.06            876         +              Normal
  04/13/2026 11 PM PDT            4.07            881         +              Normal
  04/14/2026 12 AM PDT            4.07            881         0              Normal
  04/14/2026 01 AM PDT            4.06            876         -              Normal
  04/14/2026 02 AM PDT            4.04            867         -              Normal
  04/14/2026 03 AM PDT            4.02            857         -              Normal
  04/14/2026 04 AM PDT            3.99            843         -              Normal
  04/14/2026 05 AM PDT            3.97            834         -              Normal
  04/14/2026 06 AM PDT            3.95            825         -              Normal
  04/14/2026 07 AM PDT            3.94            820         -              Normal
  04/14/2026 08 AM PDT            3.92            811         -              Normal
  04/14/2026 09 AM PDT            3.91            807         -              Normal
  04/14/2026 10 AM PDT            3.90            802         -              Normal
  04/14/2026 11 AM PDT            3.88            793         -              Normal
  04/14/2026 12 PM PDT            3.87            789         -              Normal
  04/14/2026 01 PM PDT            3.87            789         0              Normal
  04/14/2026 02 PM PDT            3.86            784         -              Normal
  04/14/2026 03 PM PDT            3.85            780         -              Normal
  04/14/2026 04 PM PDT            3.85            780         0              Normal
  04/14/2026 05 PM PDT            3.85            780         0              Normal
  04/14/2026 06 PM PDT            3.85            780         0              Normal
  04/14/2026 07 PM PDT            3.85            780         0              Normal
  04/14/2026 08 PM PDT            3.85            780         0              Normal
  04/14/2026 09 PM PDT            3.85            780         0              Normal
  04/14/2026 10 PM PDT            3.85            780         0              Normal
  04/14/2026 11 PM PDT            3.85            780         0              Normal
  04/15/2026 12 AM PDT            3.84            775         -              Normal
  04/15/2026 01 AM PDT            3.84            775         0              Normal
  04/15/2026 02 AM PDT            3.83            771         -              Normal
  04/15/2026 03 AM PDT            3.82            766         -              Normal
  04/15/2026 04 AM PDT            3.82            766         0              Normal
  04/15/2026 05 AM PDT            3.81            762         -              Normal
  04/15/2026 06 AM PDT            3.80            758         -              Normal
  04/15/2026 07 AM PDT            3.79            753         -              Normal
  04/15/2026 08 AM PDT            3.79            753         0              Normal
  04/15/2026 09 AM PDT            3.78            749         -              Normal
  04/15/2026 10 AM PDT            3.77            745         -              Normal
  04/15/2026 11 AM PDT            3.77            745         0              Normal
  04/15/2026 12 PM PDT            3.77            745         0              Normal
  04/15/2026 01 PM PDT            3.76            740         -              Normal
  04/15/2026 02 PM PDT            3.76            740         0              Normal
  04/15/2026 03 PM PDT            3.77            745         +              Normal
  04/15/2026 04 PM PDT            3.77            745         0              Normal
  04/15/2026 05 PM PDT            3.77            745         0              Normal
  04/15/2026 06 PM PDT            3.77            745         0              Normal
  04/15/2026 07 PM PDT            3.77            745         0              Normal
  04/15/2026 08 PM PDT            3.77            745         0              Normal
  04/15/2026 09 PM PDT            3.78            749         +              Normal
  04/15/2026 10 PM PDT            3.78            749         0              Normal
  04/15/2026 11 PM PDT            3.78            749         0              Normal
  04/16/2026 12 AM PDT            3.78            749         0              Normal
  04/16/2026 01 AM PDT            3.78            749         0              Normal
  04/16/2026 02 AM PDT            3.77            745         -              Normal
  04/16/2026 03 AM PDT            3.77            745         0              Normal
  04/16/2026 04 AM PDT            3.77            745         0              Normal
  04/16/2026 05 AM PDT            3.77            745         0              Normal
  04/16/2026 06 AM PDT            3.77            745         0              Normal
  04/16/2026 07 AM PDT            3.77            745         0              Normal
  04/16/2026 08 AM PDT            3.78            749         +              Normal
  04/16/2026 09 AM PDT            3.78            749         0              Normal
  04/16/2026 10 AM PDT            3.79            753         +              Normal
  04/16/2026 11 AM PDT            3.81            762         +              Normal
  04/16/2026 12 PM PDT            3.82            766         +              Normal
  04/16/2026 01 PM PDT            3.83            771         +              Normal
  04/16/2026 02 PM PDT            3.84            775         +              Normal
  04/16/2026 03 PM PDT            3.84            775         0              Normal
  04/16/2026 04 PM PDT            3.85            780         +              Normal
  04/16/2026 05 PM PDT            3.85            780         0              Normal
  04/16/2026 06 PM PDT            3.86            784         +              Normal
  04/16/2026 07 PM PDT            3.86            784         0              Normal
  04/16/2026 08 PM PDT            3.87            789         +              Normal
  04/16/2026 09 PM PDT            3.87            789         0              Normal
  04/16/2026 10 PM PDT            3.86            784         -              Normal
  04/16/2026 11 PM PDT            3.85            780         -              Normal
  04/17/2026 12 AM PDT            3.85            780         0              Normal
  04/17/2026 01 AM PDT            3.84            775         -              Normal
  04/17/2026 02 AM PDT            3.83            771         -              Normal
  04/17/2026 03 AM PDT            3.82            766         -              Normal
  04/17/2026 04 AM PDT            3.81            762         -              Normal
  04/17/2026 05 AM PDT            3.80            758         -              Normal
  04/17/2026 06 AM PDT            3.79            753         -              Normal
  04/17/2026 07 AM PDT            3.77            745         -              Normal
  04/17/2026 08 AM PDT            3.76            740         -              Normal
  04/17/2026 09 AM PDT            3.75            736         -              Normal
  04/17/2026 10 AM PDT            3.75            736         0              Normal
  04/17/2026 11 AM PDT            3.74            732         -              Normal
  04/17/2026 12 PM PDT            3.74            732         0              Normal
  04/17/2026 01 PM PDT            3.73            727         -              Normal
  04/17/2026 02 PM PDT            3.73            727         0              Normal
  04/17/2026 03 PM PDT            3.72            723         -              Normal
  04/17/2026 04 PM PDT            3.72            723         0              Normal
  04/17/2026 05 PM PDT            3.72            723         0              Normal
  04/17/2026 06 PM PDT            3.72            723         0              Normal
  04/17/2026 07 PM PDT            3.71            719         -              Normal
  04/17/2026 08 PM PDT            3.71            719         0              Normal
  04/17/2026 09 PM PDT            3.71            719         0              Normal
  04/17/2026 10 PM PDT            3.71            719         0              Normal
  04/17/2026 11 PM PDT            3.70            714         -              Normal
  04/18/2026 12 AM PDT            3.70            714         0              Normal
  04/18/2026 01 AM PDT            3.69            710         -              Normal
  04/18/2026 02 AM PDT            3.69            710         0              Normal
  04/18/2026 03 AM PDT            3.68            706         -              Normal
  04/18/2026 04 AM PDT            3.67            702         -              Normal
  04/18/2026 05 AM PDT            3.67            702         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.