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

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WEST WALKER RIVER - BELOW LITTLE WALKER RIVER NEAR COLEVILLE (WWBC1)
Latitude: 38.38º NLongitude: 119.45º WElevation: 6591 Feet
Location: Mono County in CaliforniaBulletin Group: Eastern SierraRiver Group: Eastern Sierra
Issuance Time: Dec 04 2025 at 1:30 PM PSTNext Issuance: Dec 05 2025 at 9:00 AM PST
Action/Monitor: 5.5 FeetMinor Flood: 6.0 FeetModerate Flood: 6.8 FeetMajor Flood: 7.3 Feet


# Tabular Observed and Forecast Hydrograph Information
#
# Location: West Walker River - Blo Ltl Walker Nr Coleville (WWBC1)
#
# File Generation Time:  12/04/2025 at 01:30 PM PST
# Data Interval:  1 Hour
#
# Most Recent Date & Time of Maximum Observed:  11/29/2025 at 09:00 PM PST
# Maximum Observed Stage:                       1.49 Feet
# Maximum Observed Flow:                        112 cfs
#
# Earliest Date & Time of Maximum Forecast:     12/04/2025 at 05:00 PM PST
# Maximum Forecast Stage:                       1.19 Feet
# Maximum Forecast Flow:                        65 cfs
#
# OBSERVED
#
# Date & Time  (Local)    Stage (Feet)     Flow (cfs)     Trend     Observed Status
# ---------------------------------------------------------------------------------
  11/29/2025 01 PM PST            1.30             80                        Normal
  11/29/2025 02 PM PST            1.21             67         -              Normal
  11/29/2025 03 PM PST            1.25             73         +              Normal
  11/29/2025 04 PM PST            1.25             73         0              Normal
  11/29/2025 05 PM PST            1.32             83         +              Normal
  11/29/2025 06 PM PST            1.34             87         +              Normal
  11/29/2025 07 PM PST            1.35             88         +              Normal
  11/29/2025 08 PM PST            1.41             98         +              Normal
  11/29/2025 09 PM PST            1.49            112         +              Normal
  11/29/2025 10 PM PST            1.45            105         -              Normal
  11/29/2025 11 PM PST            1.45            105         0              Normal
  11/30/2025 12 AM PST            1.41             98         -              Normal
  11/30/2025 01 AM PST            1.38             93         -              Normal
  11/30/2025 02 AM PST            1.38             93         0              Normal
  11/30/2025 03 AM PST            1.37             91         -              Normal
  11/30/2025 04 AM PST            1.35             88         -              Normal
  11/30/2025 05 AM PST            1.35             88         0              Normal
  11/30/2025 06 AM PST            1.35             88         0              Normal
  11/30/2025 07 AM PST            1.34             87         -              Normal
  11/30/2025 08 AM PST            1.33             85         -              Normal
  11/30/2025 09 AM PST            1.33             85         0              Normal
  11/30/2025 10 AM PST            1.32             83         -              Normal
  11/30/2025 11 AM PST            1.30             80         -              Normal
  11/30/2025 12 PM PST            1.28             77         -              Normal
  11/30/2025 01 PM PST            1.27             76         -              Normal
  11/30/2025 02 PM PST            1.29             79         +              Normal
  11/30/2025 03 PM PST            1.30             80         +              Normal
  11/30/2025 04 PM PST            1.31             82         +              Normal
  11/30/2025 05 PM PST            1.32             83         +              Normal
  11/30/2025 06 PM PST            1.33             85         +              Normal
  11/30/2025 07 PM PST            1.35             88         +              Normal
  11/30/2025 08 PM PST            1.36             90         +              Normal
  11/30/2025 09 PM PST            1.38             93         +              Normal
  11/30/2025 10 PM PST            1.39             95         +              Normal
  11/30/2025 11 PM PST            1.37             91         -              Normal
  12/01/2025 12 AM PST            1.38             93         +              Normal
  12/01/2025 01 AM PST            1.36             90         -              Normal
  12/01/2025 02 AM PST            1.35             88         -              Normal
  12/01/2025 03 AM PST            1.33             85         -              Normal
  12/01/2025 04 AM PST            1.32             83         -              Normal
  12/01/2025 05 AM PST            1.29             79         -              Normal
  12/01/2025 06 AM PST            1.27             76         -              Normal
  12/01/2025 07 AM PST            1.22             69         -              Normal
  12/01/2025 08 AM PST            1.22             69         0              Normal
  12/01/2025 09 AM PST            1.21             67         -              Normal
  12/01/2025 10 AM PST            1.20             66         -              Normal
  12/01/2025 11 AM PST            1.21             67         +              Normal
  12/01/2025 12 PM PST            1.34             87         +              Normal
  12/01/2025 01 PM PST            1.26             74         -              Normal
  12/01/2025 02 PM PST            1.20             66         -              Normal
  12/01/2025 03 PM PST            1.18             63         -              Normal
  12/01/2025 04 PM PST            1.22             69         +              Normal
  12/01/2025 05 PM PST            1.27             76         +              Normal
  12/01/2025 06 PM PST            1.31             82         +              Normal
  12/01/2025 07 PM PST            1.31             82         0              Normal
  12/01/2025 08 PM PST            1.33             85         +              Normal
  12/01/2025 09 PM PST            1.36             90         +              Normal
  12/01/2025 10 PM PST            1.39             95         +              Normal
  12/01/2025 11 PM PST            1.37             91         -              Normal
  12/02/2025 12 AM PST            1.34             87         -              Normal
  12/02/2025 01 AM PST            1.32             83         -              Normal
  12/02/2025 02 AM PST            1.30             80         -              Normal
  12/02/2025 03 AM PST            1.30             80         0              Normal
  12/02/2025 04 AM PST            1.30             80         0              Normal
  12/02/2025 05 AM PST            1.30             80         0              Normal
  12/02/2025 06 AM PST            1.30             80         0              Normal
  12/02/2025 07 AM PST            1.30             80         0              Normal
  12/02/2025 08 AM PST            1.29             79         -              Normal
  12/02/2025 09 AM PST            1.28             77         -              Normal
  12/02/2025 10 AM PST            1.31             82         +              Normal
  12/02/2025 11 AM PST            1.33             85         +              Normal
  12/02/2025 12 PM PST            1.33             85         0              Normal
  12/02/2025 01 PM PST            1.29             79         -              Normal
  12/02/2025 02 PM PST            1.27             76         -              Normal
  12/02/2025 03 PM PST            1.29             79         +              Normal
  12/02/2025 04 PM PST            1.29             79         0              Normal
  12/02/2025 05 PM PST            1.31             82         +              Normal
  12/02/2025 06 PM PST            1.31             82         0              Normal
  12/02/2025 07 PM PST            1.29             79         -              Normal
  12/02/2025 08 PM PST            1.31             82         +              Normal
  12/02/2025 09 PM PST            1.32             83         +              Normal
  12/02/2025 10 PM PST            1.33             85         +              Normal
  12/02/2025 11 PM PST            1.33             85         0              Normal
  12/03/2025 12 AM PST            1.31             82         -              Normal
  12/03/2025 01 AM PST            1.31             82         0              Normal
  12/03/2025 02 AM PST            1.30             80         -              Normal
  12/03/2025 03 AM PST            1.30             80         0              Normal
  12/03/2025 04 AM PST            1.30             80         0              Normal
  12/03/2025 05 AM PST            1.28             77         -              Normal
  12/03/2025 06 AM PST            1.27             76         -              Normal
  12/03/2025 07 AM PST            1.24             72         -              Normal
  12/03/2025 08 AM PST            1.20             66         -              Normal
  12/03/2025 09 AM PST            1.17             62         -              Normal
  12/03/2025 10 AM PST            1.17             62         0              Normal
  12/03/2025 11 AM PST            1.22             69         +              Normal
  12/03/2025 12 PM PST            1.31             82         +              Normal
  12/03/2025 01 PM PST            1.21             67         -              Normal
  12/03/2025 02 PM PST            1.18             63         -              Normal
  12/03/2025 03 PM PST            1.20             66         +              Normal
  12/03/2025 04 PM PST            1.22             69         +              Normal
  12/03/2025 05 PM PST            1.20             66         -              Normal
  12/03/2025 06 PM PST            1.22             69         +              Normal
  12/03/2025 07 PM PST            1.23             70         +              Normal
  12/03/2025 08 PM PST            1.25             73         +              Normal
  12/03/2025 09 PM PST            1.26             74         +              Normal
  12/03/2025 10 PM PST            1.29             79         +              Normal
  12/03/2025 11 PM PST            1.30             80         +              Normal
  12/04/2025 12 AM PST            1.27             76         -              Normal
  12/04/2025 01 AM PST            1.25             73         -              Normal
  12/04/2025 02 AM PST            1.22             69         -              Normal
  12/04/2025 03 AM PST            1.20             66         -              Normal
  12/04/2025 04 AM PST            1.16             61         -              Normal
  12/04/2025 05 AM PST            1.12             56         -              Normal
  12/04/2025 06 AM PST            1.10             53         -              Normal
  12/04/2025 07 AM PST            1.08             51         -              Normal
  12/04/2025 08 AM PST            1.07             50         -              Normal
  12/04/2025 09 AM PST            1.10             53         +              Normal
  12/04/2025 10 AM PST            1.09             52         -              Normal
  12/04/2025 11 AM PST            1.03             45         -              Normal
  12/04/2025 12 PM PST            1.06             49         +              Normal
  12/04/2025 01 PM PST            1.09             52         +              Normal
#
# FORECAST
#
# Date & Time  (Local)    Stage (Feet)     Flow (cfs)     Trend     Forecast Status
# ---------------------------------------------------------------------------------
  12/04/2025 02 PM PST            1.12             56                        Normal
  12/04/2025 03 PM PST            1.14             58         +              Normal
  12/04/2025 04 PM PST            1.17             62         +              Normal
  12/04/2025 05 PM PST            1.19             65         +              Normal
  12/04/2025 06 PM PST            1.19             65         0              Normal
  12/04/2025 07 PM PST            1.19             65         0              Normal
  12/04/2025 08 PM PST            1.19             65         0              Normal
  12/04/2025 09 PM PST            1.19             65         0              Normal
  12/04/2025 10 PM PST            1.19             65         0              Normal
  12/04/2025 11 PM PST            1.19             65         0              Normal
  12/05/2025 12 AM PST            1.19             65         0              Normal
  12/05/2025 01 AM PST            1.19             65         0              Normal
  12/05/2025 02 AM PST            1.18             63         -              Normal
  12/05/2025 03 AM PST            1.18             63         0              Normal
  12/05/2025 04 AM PST            1.18             63         0              Normal
  12/05/2025 05 AM PST            1.18             63         0              Normal
  12/05/2025 06 AM PST            1.18             63         0              Normal
  12/05/2025 07 AM PST            1.18             63         0              Normal
  12/05/2025 08 AM PST            1.18             63         0              Normal
  12/05/2025 09 AM PST            1.18             63         0              Normal
  12/05/2025 10 AM PST            1.18             63         0              Normal
  12/05/2025 11 AM PST            1.17             62         -              Normal
  12/05/2025 12 PM PST            1.17             62         0              Normal
  12/05/2025 01 PM PST            1.17             62         0              Normal
  12/05/2025 02 PM PST            1.17             62         0              Normal
  12/05/2025 03 PM PST            1.17             62         0              Normal
  12/05/2025 04 PM PST            1.17             62         0              Normal
  12/05/2025 05 PM PST            1.17             62         0              Normal
  12/05/2025 06 PM PST            1.17             62         0              Normal
  12/05/2025 07 PM PST            1.17             62         0              Normal
  12/05/2025 08 PM PST            1.17             62         0              Normal
  12/05/2025 09 PM PST            1.17             62         0              Normal
  12/05/2025 10 PM PST            1.17             62         0              Normal
  12/05/2025 11 PM PST            1.17             62         0              Normal
  12/06/2025 12 AM PST            1.16             61         -              Normal
  12/06/2025 01 AM PST            1.16             61         0              Normal
  12/06/2025 02 AM PST            1.16             61         0              Normal
  12/06/2025 03 AM PST            1.16             61         0              Normal
  12/06/2025 04 AM PST            1.16             61         0              Normal
  12/06/2025 05 AM PST            1.16             61         0              Normal
  12/06/2025 06 AM PST            1.16             61         0              Normal
  12/06/2025 07 AM PST            1.16             61         0              Normal
  12/06/2025 08 AM PST            1.16             61         0              Normal
  12/06/2025 09 AM PST            1.16             61         0              Normal
  12/06/2025 10 AM PST            1.16             61         0              Normal
  12/06/2025 11 AM PST            1.16             61         0              Normal
  12/06/2025 12 PM PST            1.16             61         0              Normal
  12/06/2025 01 PM PST            1.16             61         0              Normal
  12/06/2025 02 PM PST            1.16             61         0              Normal
  12/06/2025 03 PM PST            1.16             61         0              Normal
  12/06/2025 04 PM PST            1.16             61         0              Normal
  12/06/2025 05 PM PST            1.16             61         0              Normal
  12/06/2025 06 PM PST            1.16             61         0              Normal
  12/06/2025 07 PM PST            1.16             61         0              Normal
  12/06/2025 08 PM PST            1.16             61         0              Normal
  12/06/2025 09 PM PST            1.16             61         0              Normal
  12/06/2025 10 PM PST            1.16             61         0              Normal
  12/06/2025 11 PM PST            1.16             61         0              Normal
  12/07/2025 12 AM PST            1.16             61         0              Normal
  12/07/2025 01 AM PST            1.16             61         0              Normal
  12/07/2025 02 AM PST            1.16             61         0              Normal
  12/07/2025 03 AM PST            1.17             62         +              Normal
  12/07/2025 04 AM PST            1.17             62         0              Normal
  12/07/2025 05 AM PST            1.17             62         0              Normal
  12/07/2025 06 AM PST            1.17             62         0              Normal
  12/07/2025 07 AM PST            1.17             62         0              Normal
  12/07/2025 08 AM PST            1.17             62         0              Normal
  12/07/2025 09 AM PST            1.17             62         0              Normal
  12/07/2025 10 AM PST            1.17             62         0              Normal
  12/07/2025 11 AM PST            1.17             62         0              Normal
  12/07/2025 12 PM PST            1.16             61         -              Normal
  12/07/2025 01 PM PST            1.16             61         0              Normal
  12/07/2025 02 PM PST            1.16             61         0              Normal
  12/07/2025 03 PM PST            1.16             61         0              Normal
  12/07/2025 04 PM PST            1.16             61         0              Normal
  12/07/2025 05 PM PST            1.16             61         0              Normal
  12/07/2025 06 PM PST            1.16             61         0              Normal
  12/07/2025 07 PM PST            1.16             61         0              Normal
  12/07/2025 08 PM PST            1.15             59         -              Normal
  12/07/2025 09 PM PST            1.15             59         0              Normal
  12/07/2025 10 PM PST            1.15             59         0              Normal
  12/07/2025 11 PM PST            1.15             59         0              Normal
  12/08/2025 12 AM PST            1.15             59         0              Normal
  12/08/2025 01 AM PST            1.16             61         +              Normal
  12/08/2025 02 AM PST            1.16             61         0              Normal
  12/08/2025 03 AM PST            1.16             61         0              Normal
  12/08/2025 04 AM PST            1.16             61         0              Normal
  12/08/2025 05 AM PST            1.16             61         0              Normal
  12/08/2025 06 AM PST            1.16             61         0              Normal
  12/08/2025 07 AM PST            1.16             61         0              Normal
  12/08/2025 08 AM PST            1.15             59         -              Normal
  12/08/2025 09 AM PST            1.15             59         0              Normal
  12/08/2025 10 AM PST            1.15             59         0              Normal
  12/08/2025 11 AM PST            1.15             59         0              Normal
  12/08/2025 12 PM PST            1.15             59         0              Normal
  12/08/2025 01 PM PST            1.15             59         0              Normal
  12/08/2025 02 PM PST            1.15             59         0              Normal
  12/08/2025 03 PM PST            1.14             58         -              Normal
  12/08/2025 04 PM PST            1.14             58         0              Normal
  12/08/2025 05 PM PST            1.14             58         0              Normal
  12/08/2025 06 PM PST            1.14             58         0              Normal
  12/08/2025 07 PM PST            1.14             58         0              Normal
  12/08/2025 08 PM PST            1.14             58         0              Normal
  12/08/2025 09 PM PST            1.14             58         0              Normal
  12/08/2025 10 PM PST            1.14             58         0              Normal
  12/08/2025 11 PM PST            1.14             58         0              Normal
  12/09/2025 12 AM PST            1.14             58         0              Normal
  12/09/2025 01 AM PST            1.14             58         0              Normal
  12/09/2025 02 AM PST            1.14             58         0              Normal
  12/09/2025 03 AM PST            1.14             58         0              Normal
  12/09/2025 04 AM PST            1.14             58         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.