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: Jul 18 2025 at 7:04 AM PDTNext Issuance: Jul 19 2025 at 9:00 AM PDT
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:  07/18/2025 at 07:04 AM PDT
# Data Interval:  1 Hour
#
# Most Recent Date & Time of Maximum Observed:  07/13/2025 at 11:00 AM PDT
# Maximum Observed Stage:                       1.62 Feet
# Maximum Observed Flow:                        140 cfs
#
# Earliest Date & Time of Maximum Forecast:     07/18/2025 at 07:00 AM PDT
# Maximum Forecast Stage:                       1.39 Feet
# Maximum Forecast Flow:                        96 cfs
#
# OBSERVED
#
# Date & Time  (Local)    Stage (Feet)     Flow (cfs)     Trend     Observed Status
# ---------------------------------------------------------------------------------
  07/13/2025 07 AM PDT            1.59            134                        Normal
  07/13/2025 08 AM PDT            1.61            138         +              Normal
  07/13/2025 09 AM PDT            1.61            138         0              Normal
  07/13/2025 10 AM PDT            1.60            136         -              Normal
  07/13/2025 11 AM PDT            1.62            140         +              Normal
  07/13/2025 12 PM PDT            1.61            138         -              Normal
  07/13/2025 01 PM PDT            1.60            136         -              Normal
  07/13/2025 02 PM PDT            1.60            136         0              Normal
  07/13/2025 03 PM PDT            1.59            134         -              Normal
  07/13/2025 04 PM PDT            1.59            134         0              Normal
  07/13/2025 05 PM PDT            1.56            128         -              Normal
  07/13/2025 06 PM PDT            1.55            126         -              Normal
  07/13/2025 07 PM PDT            1.52            120         -              Normal
  07/13/2025 08 PM PDT            1.54            124         +              Normal
  07/13/2025 09 PM PDT            1.52            120         -              Normal
  07/13/2025 10 PM PDT            1.53            122         +              Normal
  07/13/2025 11 PM PDT            1.52            120         -              Normal
  07/14/2025 12 AM PDT            1.53            122         +              Normal
  07/14/2025 01 AM PDT            1.53            122         0              Normal
  07/14/2025 02 AM PDT            1.53            122         0              Normal
  07/14/2025 03 AM PDT            1.54            124         +              Normal
  07/14/2025 04 AM PDT            1.54            124         0              Normal
  07/14/2025 05 AM PDT            1.55            126         +              Normal
  07/14/2025 06 AM PDT            1.56            128         +              Normal
  07/14/2025 07 AM PDT            1.57            130         +              Normal
  07/14/2025 08 AM PDT            1.57            130         0              Normal
  07/14/2025 09 AM PDT            1.57            130         0              Normal
  07/14/2025 10 AM PDT            1.58            132         +              Normal
  07/14/2025 11 AM PDT            1.58            132         0              Normal
  07/14/2025 12 PM PDT            1.58            132         0              Normal
  07/14/2025 01 PM PDT            1.58            132         0              Normal
  07/14/2025 02 PM PDT            1.56            128         -              Normal
  07/14/2025 03 PM PDT            1.56            128         0              Normal
  07/14/2025 04 PM PDT            1.55            126         -              Normal
  07/14/2025 05 PM PDT            1.52            120         -              Normal
  07/14/2025 06 PM PDT            1.52            120         0              Normal
  07/14/2025 07 PM PDT            1.49            114         -              Normal
  07/14/2025 08 PM PDT            1.49            114         0              Normal
  07/14/2025 09 PM PDT            1.48            112         -              Normal
  07/14/2025 10 PM PDT            1.49            114         +              Normal
  07/14/2025 11 PM PDT            1.47            111         -              Normal
  07/15/2025 12 AM PDT            1.49            114         +              Normal
  07/15/2025 01 AM PDT            1.50            116         +              Normal
  07/15/2025 02 AM PDT            1.50            116         0              Normal
  07/15/2025 03 AM PDT            1.50            116         0              Normal
  07/15/2025 04 AM PDT            1.51            118         +              Normal
  07/15/2025 05 AM PDT            1.52            120         +              Normal
  07/15/2025 06 AM PDT            1.52            120         0              Normal
  07/15/2025 07 AM PDT            1.53            122         +              Normal
  07/15/2025 08 AM PDT            1.53            122         0              Normal
  07/15/2025 09 AM PDT            1.54            124         +              Normal
  07/15/2025 10 AM PDT            1.54            124         0              Normal
  07/15/2025 11 AM PDT            1.56            128         +              Normal
  07/15/2025 12 PM PDT            1.54            124         -              Normal
  07/15/2025 01 PM PDT            1.53            122         -              Normal
  07/15/2025 02 PM PDT            1.53            122         0              Normal
  07/15/2025 03 PM PDT            1.52            120         -              Normal
  07/15/2025 04 PM PDT            1.52            120         0              Normal
  07/15/2025 05 PM PDT            1.50            116         -              Normal
  07/15/2025 06 PM PDT            1.48            112         -              Normal
  07/15/2025 07 PM PDT            1.46            109         -              Normal
  07/15/2025 08 PM PDT            1.44            105         -              Normal
  07/15/2025 09 PM PDT            1.44            105         0              Normal
  07/15/2025 10 PM PDT            1.44            105         0              Normal
  07/15/2025 11 PM PDT            1.43            103         -              Normal
  07/16/2025 12 AM PDT            1.45            107         +              Normal
  07/16/2025 01 AM PDT            1.45            107         0              Normal
  07/16/2025 02 AM PDT            1.45            107         0              Normal
  07/16/2025 03 AM PDT            1.45            107         0              Normal
  07/16/2025 04 AM PDT            1.47            111         +              Normal
  07/16/2025 05 AM PDT            1.48            112         +              Normal
  07/16/2025 06 AM PDT            1.48            112         0              Normal
  07/16/2025 07 AM PDT            1.49            114         +              Normal
  07/16/2025 08 AM PDT            1.49            114         0              Normal
  07/16/2025 09 AM PDT            1.50            116         +              Normal
  07/16/2025 10 AM PDT            1.50            116         0              Normal
  07/16/2025 11 AM PDT            1.50            116         0              Normal
  07/16/2025 12 PM PDT            1.50            116         0              Normal
  07/16/2025 01 PM PDT            1.50            116         0              Normal
  07/16/2025 02 PM PDT            1.49            114         -              Normal
  07/16/2025 03 PM PDT            1.48            112         -              Normal
  07/16/2025 04 PM PDT            1.47            111         -              Normal
  07/16/2025 05 PM PDT            1.46            109         -              Normal
  07/16/2025 06 PM PDT            1.46            109         0              Normal
  07/16/2025 07 PM PDT            1.44            105         -              Normal
  07/16/2025 08 PM PDT            1.42            102         -              Normal
  07/16/2025 09 PM PDT            1.42            102         0              Normal
  07/16/2025 10 PM PDT            1.42            102         0              Normal
  07/16/2025 11 PM PDT            1.41            100         -              Normal
  07/17/2025 12 AM PDT            1.41            100         0              Normal
  07/17/2025 01 AM PDT            1.42            102         +              Normal
  07/17/2025 02 AM PDT            1.41            100         -              Normal
  07/17/2025 03 AM PDT            1.43            103         +              Normal
  07/17/2025 04 AM PDT            1.44            105         +              Normal
  07/17/2025 05 AM PDT            1.43            103         -              Normal
  07/17/2025 06 AM PDT            1.46            109         +              Normal
  07/17/2025 07 AM PDT            1.46            109         0              Normal
  07/17/2025 08 AM PDT            1.46            109         0              Normal
  07/17/2025 09 AM PDT            1.46            109         0              Normal
  07/17/2025 10 AM PDT            1.47            111         +              Normal
  07/17/2025 11 AM PDT            1.48            112         +              Normal
  07/17/2025 12 PM PDT            1.47            111         -              Normal
  07/17/2025 01 PM PDT            1.46            109         -              Normal
  07/17/2025 02 PM PDT            1.46            109         0              Normal
  07/17/2025 03 PM PDT            1.45            107         -              Normal
  07/17/2025 04 PM PDT            1.44            105         -              Normal
  07/17/2025 05 PM PDT            1.42            102         -              Normal
  07/17/2025 06 PM PDT            1.40             98         -              Normal
  07/17/2025 07 PM PDT            1.40             98         0              Normal
  07/17/2025 08 PM PDT            1.40             98         0              Normal
  07/17/2025 09 PM PDT            1.39             96         -              Normal
  07/17/2025 10 PM PDT            1.39             96         0              Normal
  07/17/2025 11 PM PDT            1.36             91         -              Normal
  07/18/2025 12 AM PDT            1.37             93         +              Normal
  07/18/2025 01 AM PDT            1.39             96         +              Normal
  07/18/2025 02 AM PDT            1.38             95         -              Normal
  07/18/2025 03 AM PDT            1.39             96         +              Normal
  07/18/2025 04 AM PDT            1.40             98         +              Normal
  07/18/2025 05 AM PDT            1.40             98         0              Normal
  07/18/2025 06 AM PDT            1.40             98         0              Normal
#
# FORECAST
#
# Date & Time  (Local)    Stage (Feet)     Flow (cfs)     Trend     Forecast Status
# ---------------------------------------------------------------------------------
  07/18/2025 07 AM PDT            1.39             96                        Normal
  07/18/2025 08 AM PDT            1.39             96         0              Normal
  07/18/2025 09 AM PDT            1.38             95         -              Normal
  07/18/2025 10 AM PDT            1.38             95         0              Normal
  07/18/2025 11 AM PDT            1.38             95         0              Normal
  07/18/2025 12 PM PDT            1.37             93         -              Normal
  07/18/2025 01 PM PDT            1.37             93         0              Normal
  07/18/2025 02 PM PDT            1.36             91         -              Normal
  07/18/2025 03 PM PDT            1.36             91         0              Normal
  07/18/2025 04 PM PDT            1.36             91         0              Normal
  07/18/2025 05 PM PDT            1.36             91         0              Normal
  07/18/2025 06 PM PDT            1.36             91         0              Normal
  07/18/2025 07 PM PDT            1.37             93         +              Normal
  07/18/2025 08 PM PDT            1.37             93         0              Normal
  07/18/2025 09 PM PDT            1.37             93         0              Normal
  07/18/2025 10 PM PDT            1.38             95         +              Normal
  07/18/2025 11 PM PDT            1.38             95         0              Normal
  07/19/2025 12 AM PDT            1.38             95         0              Normal
  07/19/2025 01 AM PDT            1.38             95         0              Normal
  07/19/2025 02 AM PDT            1.38             95         0              Normal
  07/19/2025 03 AM PDT            1.38             95         0              Normal
  07/19/2025 04 AM PDT            1.38             95         0              Normal
  07/19/2025 05 AM PDT            1.38             95         0              Normal
  07/19/2025 06 AM PDT            1.38             95         0              Normal
  07/19/2025 07 AM PDT            1.37             93         -              Normal
  07/19/2025 08 AM PDT            1.37             93         0              Normal
  07/19/2025 09 AM PDT            1.37             93         0              Normal
  07/19/2025 10 AM PDT            1.37             93         0              Normal
  07/19/2025 11 AM PDT            1.36             91         -              Normal
  07/19/2025 12 PM PDT            1.36             91         0              Normal
  07/19/2025 01 PM PDT            1.36             91         0              Normal
  07/19/2025 02 PM PDT            1.36             91         0              Normal
  07/19/2025 03 PM PDT            1.35             90         -              Normal
  07/19/2025 04 PM PDT            1.35             90         0              Normal
  07/19/2025 05 PM PDT            1.35             90         0              Normal
  07/19/2025 06 PM PDT            1.35             90         0              Normal
  07/19/2025 07 PM PDT            1.35             90         0              Normal
  07/19/2025 08 PM PDT            1.35             90         0              Normal
  07/19/2025 09 PM PDT            1.36             91         +              Normal
  07/19/2025 10 PM PDT            1.36             91         0              Normal
  07/19/2025 11 PM PDT            1.36             91         0              Normal
  07/20/2025 12 AM PDT            1.36             91         0              Normal
  07/20/2025 01 AM PDT            1.36             91         0              Normal
  07/20/2025 02 AM PDT            1.35             90         -              Normal
  07/20/2025 03 AM PDT            1.35             90         0              Normal
  07/20/2025 04 AM PDT            1.35             90         0              Normal
  07/20/2025 05 AM PDT            1.35             90         0              Normal
  07/20/2025 06 AM PDT            1.35             90         0              Normal
  07/20/2025 07 AM PDT            1.35             90         0              Normal
  07/20/2025 08 AM PDT            1.35             90         0              Normal
  07/20/2025 09 AM PDT            1.34             88         -              Normal
  07/20/2025 10 AM PDT            1.34             88         0              Normal
  07/20/2025 11 AM PDT            1.34             88         0              Normal
  07/20/2025 12 PM PDT            1.34             88         0              Normal
  07/20/2025 01 PM PDT            1.34             88         0              Normal
  07/20/2025 02 PM PDT            1.33             87         -              Normal
  07/20/2025 03 PM PDT            1.33             87         0              Normal
  07/20/2025 04 PM PDT            1.33             87         0              Normal
  07/20/2025 05 PM PDT            1.33             87         0              Normal
  07/20/2025 06 PM PDT            1.33             87         0              Normal
  07/20/2025 07 PM PDT            1.33             87         0              Normal
  07/20/2025 08 PM PDT            1.33             87         0              Normal
  07/20/2025 09 PM PDT            1.33             87         0              Normal
  07/20/2025 10 PM PDT            1.33             87         0              Normal
  07/20/2025 11 PM PDT            1.33             87         0              Normal
  07/21/2025 12 AM PDT            1.33             87         0              Normal
  07/21/2025 01 AM PDT            1.33             87         0              Normal
  07/21/2025 02 AM PDT            1.33             87         0              Normal
  07/21/2025 03 AM PDT            1.33             87         0              Normal
  07/21/2025 04 AM PDT            1.33             87         0              Normal
  07/21/2025 05 AM PDT            1.33             87         0              Normal
  07/21/2025 06 AM PDT            1.33             87         0              Normal
  07/21/2025 07 AM PDT            1.33             87         0              Normal
  07/21/2025 08 AM PDT            1.32             85         -              Normal
  07/21/2025 09 AM PDT            1.32             85         0              Normal
  07/21/2025 10 AM PDT            1.32             85         0              Normal
  07/21/2025 11 AM PDT            1.32             85         0              Normal
  07/21/2025 12 PM PDT            1.31             83         -              Normal
  07/21/2025 01 PM PDT            1.31             83         0              Normal
  07/21/2025 02 PM PDT            1.31             83         0              Normal
  07/21/2025 03 PM PDT            1.31             83         0              Normal
  07/21/2025 04 PM PDT            1.31             83         0              Normal
  07/21/2025 05 PM PDT            1.31             83         0              Normal
  07/21/2025 06 PM PDT            1.31             83         0              Normal
  07/21/2025 07 PM PDT            1.31             83         0              Normal
  07/21/2025 08 PM PDT            1.31             83         0              Normal
  07/21/2025 09 PM PDT            1.31             83         0              Normal
  07/21/2025 10 PM PDT            1.31             83         0              Normal
  07/21/2025 11 PM PDT            1.31             83         0              Normal
  07/22/2025 12 AM PDT            1.31             83         0              Normal
  07/22/2025 01 AM PDT            1.31             83         0              Normal
  07/22/2025 02 AM PDT            1.31             83         0              Normal
  07/22/2025 03 AM PDT            1.31             83         0              Normal
  07/22/2025 04 AM PDT            1.31             83         0              Normal
  07/22/2025 05 AM PDT            1.31             83         0              Normal
  07/22/2025 06 AM PDT            1.30             82         -              Normal
  07/22/2025 07 AM PDT            1.30             82         0              Normal
  07/22/2025 08 AM PDT            1.30             82         0              Normal
  07/22/2025 09 AM PDT            1.30             82         0              Normal
  07/22/2025 10 AM PDT            1.30             82         0              Normal
  07/22/2025 11 AM PDT            1.29             80         -              Normal
  07/22/2025 12 PM PDT            1.29             80         0              Normal
  07/22/2025 01 PM PDT            1.29             80         0              Normal
  07/22/2025 02 PM PDT            1.29             80         0              Normal
  07/22/2025 03 PM PDT            1.28             79         -              Normal
  07/22/2025 04 PM PDT            1.28             79         0              Normal
  07/22/2025 05 PM PDT            1.28             79         0              Normal
  07/22/2025 06 PM PDT            1.28             79         0              Normal
  07/22/2025 07 PM PDT            1.28             79         0              Normal
  07/22/2025 08 PM PDT            1.28             79         0              Normal
  07/22/2025 09 PM PDT            1.29             80         +              Normal
  07/22/2025 10 PM PDT            1.29             80         0              Normal
  07/22/2025 11 PM PDT            1.29             80         0              Normal
  07/23/2025 12 AM PDT            1.29             80         0              Normal
  07/23/2025 01 AM PDT            1.29             80         0              Normal
  07/23/2025 02 AM PDT            1.29             80         0              Normal
  07/23/2025 03 AM PDT            1.29             80         0              Normal
  07/23/2025 04 AM PDT            1.28             79         -              Normal
  07/23/2025 05 AM PDT            1.28             79         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.