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: Oct 26 2026 at 7:07 AM PDTNext Issuance: Oct 27 2026 at 9:00 AM PDT
Action: 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:  10/26/2026 at 07:09 AM PDT
# Data Interval:  1 Hour
#
# Most Recent Date & Time of Maximum Observed:  10/22/2026 at 02:00 PM PDT
# Maximum Observed Stage:                       2.88 Feet
# Maximum Observed Flow:                        344 cfs
#
# Earliest Date & Time of Maximum Forecast:     10/26/2026 at 09:00 AM PDT
# Maximum Forecast Stage:                       2.77 Feet
# Maximum Forecast Flow:                        310 cfs
#
# OBSERVED
#
# Date & Time  (Local)    Stage (Feet)     Flow (cfs)     Trend     Observed Status
# ---------------------------------------------------------------------------------
  10/21/2026 07 AM PDT            2.59            258                        Normal
  10/21/2026 08 AM PDT            2.60            261         +              Normal
  10/21/2026 09 AM PDT            2.60            261         0              Normal
  10/21/2026 10 AM PDT            2.58            256         -              Normal
  10/21/2026 11 AM PDT            2.59            258         +              Normal
  10/21/2026 12 PM PDT            2.58            256         -              Normal
  10/21/2026 01 PM PDT            2.58            256         0              Normal
  10/21/2026 02 PM PDT            2.56            250         -              Normal
  10/21/2026 03 PM PDT            2.55            248         -              Normal
  10/21/2026 04 PM PDT            2.57            253         +              Normal
  10/21/2026 05 PM PDT            2.58            256         +              Normal
  10/21/2026 06 PM PDT            2.58            256         0              Normal
  10/21/2026 07 PM PDT            2.63            269         +              Normal
  10/21/2026 08 PM PDT            2.61            264         -              Normal
  10/21/2026 09 PM PDT            2.58            256         -              Normal
  10/21/2026 10 PM PDT            2.60            261         +              Normal
  10/21/2026 11 PM PDT            2.62            267         +              Normal
  10/22/2026 12 AM PDT            2.61            264         -              Normal
  10/22/2026 01 AM PDT            2.61            264         0              Normal
  10/22/2026 02 AM PDT            2.57            253         -              Normal
  10/22/2026 03 AM PDT            2.57            253         0              Normal
  10/22/2026 04 AM PDT            2.57            253         0              Normal
  10/22/2026 05 AM PDT            2.59            258         +              Normal
  10/22/2026 06 AM PDT            2.62            267         +              Normal
  10/22/2026 07 AM PDT            2.67            280         +              Normal
  10/22/2026 08 AM PDT            2.73            298         +              Normal
  10/22/2026 09 AM PDT            2.80            319         +              Normal
  10/22/2026 10 AM PDT            2.83            328         +              Normal
  10/22/2026 11 AM PDT            2.86            338         +              Normal
  10/22/2026 12 PM PDT            2.85            334         -              Normal
  10/22/2026 01 PM PDT            2.85            334         0              Normal
  10/22/2026 02 PM PDT            2.88            344         +              Normal
  10/22/2026 03 PM PDT            2.84            331         -              Normal
  10/22/2026 04 PM PDT            2.81            322         -              Normal
  10/22/2026 05 PM PDT            2.77            310         -              Normal
  10/22/2026 06 PM PDT            2.77            310         0              Normal
  10/22/2026 07 PM PDT            2.77            310         0              Normal
  10/22/2026 08 PM PDT            2.81            322         +              Normal
  10/22/2026 09 PM PDT            2.81            322         0              Normal
  10/22/2026 10 PM PDT            2.84            331         +              Normal
  10/22/2026 11 PM PDT            2.85            334         +              Normal
  10/23/2026 12 AM PDT            2.85            334         0              Normal
  10/23/2026 01 AM PDT            2.85            334         0              Normal
  10/23/2026 02 AM PDT            2.85            334         0              Normal
  10/23/2026 03 AM PDT            2.82            325         -              Normal
  10/23/2026 04 AM PDT            2.80            319         -              Normal
  10/23/2026 05 AM PDT            2.80            319         0              Normal
  10/23/2026 06 AM PDT            2.81            322         +              Normal
  10/23/2026 07 AM PDT            2.74            301         -              Normal
  10/23/2026 08 AM PDT            2.77            310         +              Normal
  10/23/2026 09 AM PDT            2.73            298         -              Normal
  10/23/2026 10 AM PDT            2.70            289         -              Normal
  10/23/2026 11 AM PDT            2.71            292         +              Normal
  10/23/2026 12 PM PDT            2.73            298         +              Normal
  10/23/2026 01 PM PDT            2.74            301         +              Normal
  10/23/2026 02 PM PDT            2.76            307         +              Normal
  10/23/2026 03 PM PDT            2.73            298         -              Normal
  10/23/2026 04 PM PDT            2.76            307         +              Normal
  10/23/2026 05 PM PDT            2.79            316         +              Normal
  10/23/2026 06 PM PDT            2.76            307         -              Normal
  10/23/2026 07 PM PDT            2.76            307         0              Normal
  10/23/2026 08 PM PDT            2.73            298         -              Normal
  10/23/2026 09 PM PDT            2.73            298         0              Normal
  10/23/2026 10 PM PDT            2.73            298         0              Normal
  10/23/2026 11 PM PDT            2.71            292         -              Normal
  10/24/2026 12 AM PDT            2.72            295         +              Normal
  10/24/2026 01 AM PDT            2.72            295         0              Normal
  10/24/2026 02 AM PDT            2.71            292         -              Normal
  10/24/2026 03 AM PDT            2.73            298         +              Normal
  10/24/2026 04 AM PDT            2.72            295         -              Normal
  10/24/2026 05 AM PDT            2.71            292         -              Normal
  10/24/2026 06 AM PDT            2.72            295         +              Normal
  10/24/2026 07 AM PDT            2.72            295         0              Normal
  10/24/2026 08 AM PDT            2.75            304         +              Normal
  10/24/2026 09 AM PDT            2.74            301         -              Normal
  10/24/2026 10 AM PDT            2.74            301         0              Normal
  10/24/2026 11 AM PDT            2.75            304         +              Normal
  10/24/2026 12 PM PDT            2.75            304         0              Normal
  10/24/2026 01 PM PDT            2.77            310         +              Normal
  10/24/2026 02 PM PDT            2.73            298         -              Normal
  10/24/2026 03 PM PDT            2.73            298         0              Normal
  10/24/2026 04 PM PDT            2.75            304         +              Normal
  10/24/2026 05 PM PDT            2.75            304         0              Normal
  10/24/2026 06 PM PDT            2.74            301         -              Normal
  10/24/2026 07 PM PDT            2.75            304         +              Normal
  10/24/2026 08 PM PDT            2.75            304         0              Normal
  10/24/2026 09 PM PDT            2.75            304         0              Normal
  10/24/2026 10 PM PDT            2.76            307         +              Normal
  10/24/2026 11 PM PDT            2.75            304         -              Normal
  10/25/2026 12 AM PDT            2.72            295         -              Normal
  10/25/2026 01 AM PDT            2.74            301         +              Normal
  10/25/2026 02 AM PDT            2.76            307         +              Normal
  10/25/2026 03 AM PDT            2.74            301         -              Normal
  10/25/2026 04 AM PDT            2.72            295         -              Normal
  10/25/2026 05 AM PDT            2.74            301         +              Normal
  10/25/2026 06 AM PDT            2.74            301         0              Normal
  10/25/2026 07 AM PDT            2.77            310         +              Normal
  10/25/2026 08 AM PDT            2.77            310         0              Normal
  10/25/2026 09 AM PDT            2.73            298         -              Normal
  10/25/2026 10 AM PDT            2.72            295         -              Normal
  10/25/2026 11 AM PDT            2.72            295         0              Normal
  10/25/2026 12 PM PDT            2.71            292         -              Normal
  10/25/2026 01 PM PDT            2.74            301         +              Normal
  10/25/2026 02 PM PDT            2.75            304         +              Normal
  10/25/2026 03 PM PDT            2.77            310         +              Normal
  10/25/2026 04 PM PDT            2.78            313         +              Normal
  10/25/2026 05 PM PDT            2.78            313         0              Normal
  10/25/2026 06 PM PDT            2.78            313         0              Normal
  10/25/2026 07 PM PDT            2.76            307         -              Normal
  10/25/2026 08 PM PDT            2.75            304         -              Normal
  10/25/2026 09 PM PDT            2.73            298         -              Normal
  10/25/2026 10 PM PDT            2.75            304         +              Normal
  10/25/2026 11 PM PDT            2.75            304         0              Normal
  10/26/2026 12 AM PDT            2.74            301         -              Normal
  10/26/2026 01 AM PDT            2.74            301         0              Normal
  10/26/2026 02 AM PDT            2.76            307         +              Normal
  10/26/2026 03 AM PDT            2.76            307         0              Normal
  10/26/2026 04 AM PDT            2.71            292         -              Normal
  10/26/2026 05 AM PDT            2.70            289         -              Normal
  10/26/2026 06 AM PDT            2.70            289         0              Normal
  10/26/2026 07 AM PDT            2.72            295         +              Normal
#
# FORECAST
#
# Date & Time  (Local)    Stage (Feet)     Flow (cfs)     Trend     Forecast Status
# ---------------------------------------------------------------------------------
  10/26/2026 08 AM PDT            2.75            304                        Normal
  10/26/2026 09 AM PDT            2.77            310         +              Normal
  10/26/2026 10 AM PDT            2.77            310         0              Normal
  10/26/2026 11 AM PDT            2.75            304         -              Normal
  10/26/2026 12 PM PDT            2.74            301         -              Normal
  10/26/2026 01 PM PDT            2.73            298         -              Normal
  10/26/2026 02 PM PDT            2.73            298         0              Normal
  10/26/2026 03 PM PDT            2.73            298         0              Normal
  10/26/2026 04 PM PDT            2.73            298         0              Normal
  10/26/2026 05 PM PDT            2.73            298         0              Normal
  10/26/2026 06 PM PDT            2.73            298         0              Normal
  10/26/2026 07 PM PDT            2.73            298         0              Normal
  10/26/2026 08 PM PDT            2.73            298         0              Normal
  10/26/2026 09 PM PDT            2.73            298         0              Normal
  10/26/2026 10 PM PDT            2.73            298         0              Normal
  10/26/2026 11 PM PDT            2.73            298         0              Normal
  10/27/2026 12 AM PDT            2.73            298         0              Normal
  10/27/2026 01 AM PDT            2.72            295         -              Normal
  10/27/2026 02 AM PDT            2.72            295         0              Normal
  10/27/2026 03 AM PDT            2.71            292         -              Normal
  10/27/2026 04 AM PDT            2.71            292         0              Normal
  10/27/2026 05 AM PDT            2.71            292         0              Normal
  10/27/2026 06 AM PDT            2.71            292         0              Normal
  10/27/2026 07 AM PDT            2.71            292         0              Normal
  10/27/2026 08 AM PDT            2.70            289         -              Normal
  10/27/2026 09 AM PDT            2.70            289         0              Normal
  10/27/2026 10 AM PDT            2.70            289         0              Normal
  10/27/2026 11 AM PDT            2.70            289         0              Normal
  10/27/2026 12 PM PDT            2.70            289         0              Normal
  10/27/2026 01 PM PDT            2.69            286         -              Normal
  10/27/2026 02 PM PDT            2.69            286         0              Normal
  10/27/2026 03 PM PDT            2.69            286         0              Normal
  10/27/2026 04 PM PDT            2.69            286         0              Normal
  10/27/2026 05 PM PDT            2.69            286         0              Normal
  10/27/2026 06 PM PDT            2.69            286         0              Normal
  10/27/2026 07 PM PDT            2.69            286         0              Normal
  10/27/2026 08 PM PDT            2.69            286         0              Normal
  10/27/2026 09 PM PDT            2.69            286         0              Normal
  10/27/2026 10 PM PDT            2.68            283         -              Normal
  10/27/2026 11 PM PDT            2.68            283         0              Normal
  10/28/2026 12 AM PDT            2.68            283         0              Normal
  10/28/2026 01 AM PDT            2.68            283         0              Normal
  10/28/2026 02 AM PDT            2.68            283         0              Normal
  10/28/2026 03 AM PDT            2.68            283         0              Normal
  10/28/2026 04 AM PDT            2.68            283         0              Normal
  10/28/2026 05 AM PDT            2.68            283         0              Normal
  10/28/2026 06 AM PDT            2.68            283         0              Normal
  10/28/2026 07 AM PDT            2.68            283         0              Normal
  10/28/2026 08 AM PDT            2.68            283         0              Normal
  10/28/2026 09 AM PDT            2.68            283         0              Normal
  10/28/2026 10 AM PDT            2.68            283         0              Normal
  10/28/2026 11 AM PDT            2.68            283         0              Normal
  10/28/2026 12 PM PDT            2.68            283         0              Normal
  10/28/2026 01 PM PDT            2.68            283         0              Normal
  10/28/2026 02 PM PDT            2.67            280         -              Normal
  10/28/2026 03 PM PDT            2.67            280         0              Normal
  10/28/2026 04 PM PDT            2.67            280         0              Normal
  10/28/2026 05 PM PDT            2.67            280         0              Normal
  10/28/2026 06 PM PDT            2.67            280         0              Normal
  10/28/2026 07 PM PDT            2.67            280         0              Normal
  10/28/2026 08 PM PDT            2.67            280         0              Normal
  10/28/2026 09 PM PDT            2.67            280         0              Normal
  10/28/2026 10 PM PDT            2.67            280         0              Normal
  10/28/2026 11 PM PDT            2.67            280         0              Normal
  10/29/2026 12 AM PDT            2.67            280         0              Normal
  10/29/2026 01 AM PDT            2.67            280         0              Normal
  10/29/2026 02 AM PDT            2.67            280         0              Normal
  10/29/2026 03 AM PDT            2.66            278         -              Normal
  10/29/2026 04 AM PDT            2.67            280         +              Normal
  10/29/2026 05 AM PDT            2.67            280         0              Normal
  10/29/2026 06 AM PDT            2.67            280         0              Normal
  10/29/2026 07 AM PDT            2.67            280         0              Normal
  10/29/2026 08 AM PDT            2.67            280         0              Normal
  10/29/2026 09 AM PDT            2.66            278         -              Normal
  10/29/2026 10 AM PDT            2.66            278         0              Normal
  10/29/2026 11 AM PDT            2.66            278         0              Normal
  10/29/2026 12 PM PDT            2.66            278         0              Normal
  10/29/2026 01 PM PDT            2.66            278         0              Normal
  10/29/2026 02 PM PDT            2.66            278         0              Normal
  10/29/2026 03 PM PDT            2.66            278         0              Normal
  10/29/2026 04 PM PDT            2.66            278         0              Normal
  10/29/2026 05 PM PDT            2.66            278         0              Normal
  10/29/2026 06 PM PDT            2.66            278         0              Normal
  10/29/2026 07 PM PDT            2.66            278         0              Normal
  10/29/2026 08 PM PDT            2.65            275         -              Normal
  10/29/2026 09 PM PDT            2.65            275         0              Normal
  10/29/2026 10 PM PDT            2.65            275         0              Normal
  10/29/2026 11 PM PDT            2.65            275         0              Normal
  10/30/2026 12 AM PDT            2.65            275         0              Normal
  10/30/2026 01 AM PDT            2.65            275         0              Normal
  10/30/2026 02 AM PDT            2.65            275         0              Normal
  10/30/2026 03 AM PDT            2.65            275         0              Normal
  10/30/2026 04 AM PDT            2.65            275         0              Normal
  10/30/2026 05 AM PDT            2.65            275         0              Normal
  10/30/2026 06 AM PDT            2.65            275         0              Normal
  10/30/2026 07 AM PDT            2.65            275         0              Normal
  10/30/2026 08 AM PDT            2.65            275         0              Normal
  10/30/2026 09 AM PDT            2.65            275         0              Normal
  10/30/2026 10 AM PDT            2.65            275         0              Normal
  10/30/2026 11 AM PDT            2.65            275         0              Normal
  10/30/2026 12 PM PDT            2.65            275         0              Normal
  10/30/2026 01 PM PDT            2.65            275         0              Normal
  10/30/2026 02 PM PDT            2.64            272         -              Normal
  10/30/2026 03 PM PDT            2.64            272         0              Normal
  10/30/2026 04 PM PDT            2.64            272         0              Normal
  10/30/2026 05 PM PDT            2.64            272         0              Normal
  10/30/2026 06 PM PDT            2.64            272         0              Normal
  10/30/2026 07 PM PDT            2.64            272         0              Normal
  10/30/2026 08 PM PDT            2.64            272         0              Normal
  10/30/2026 09 PM PDT            2.64            272         0              Normal
  10/30/2026 10 PM PDT            2.64            272         0              Normal
  10/30/2026 11 PM PDT            2.64            272         0              Normal
  10/31/2026 12 AM PDT            2.64            272         0              Normal
  10/31/2026 01 AM PDT            2.63            269         -              Normal
  10/31/2026 02 AM PDT            2.63            269         0              Normal
  10/31/2026 03 AM PDT            2.63            269         0              Normal
  10/31/2026 04 AM PDT            2.63            269         0              Normal
  10/31/2026 05 AM PDT            2.63            269         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.