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 FeetForecast Type: Official Location
Location: Mono County in CaliforniaBulletin Group: Eastern SierraRiver Group: Eastern Sierra
Issuance Time: Jun 23 2026 at 7:10 AM PDTNext Issuance: Jun 24 2026 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:  06/23/2026 at 07:10 AM PDT
# Data Interval:  1 Hour
#
# Most Recent Date & Time of Maximum Observed:  06/19/2026 at 02:00 AM PDT
# Maximum Observed Stage:                       2.95 Feet
# Maximum Observed Flow:                        547 cfs
#
# Earliest Date & Time of Maximum Forecast:     06/24/2026 at 04:00 AM PDT
# Maximum Forecast Stage:                       2.63 Feet
# Maximum Forecast Flow:                        422 cfs
#
# OBSERVED
#
# Date & Time  (Local)    Stage (Feet)     Flow (cfs)     Trend     Observed Status
# ---------------------------------------------------------------------------------
  06/18/2026 07 AM PDT            2.91            531                        Normal
  06/18/2026 08 AM PDT            2.89            524         -              Normal
  06/18/2026 09 AM PDT            2.88            520         -              Normal
  06/18/2026 10 AM PDT            2.86            512         -              Normal
  06/18/2026 11 AM PDT            2.85            508         -              Normal
  06/18/2026 12 PM PDT            2.83            501         -              Normal
  06/18/2026 01 PM PDT            2.81            493         -              Normal
  06/18/2026 02 PM PDT            2.78            481         -              Normal
  06/18/2026 03 PM PDT            2.77            477         -              Normal
  06/18/2026 04 PM PDT            2.75            469         -              Normal
  06/18/2026 05 PM PDT            2.76            473         +              Normal
  06/18/2026 06 PM PDT            2.78            481         +              Normal
  06/18/2026 07 PM PDT            2.81            493         +              Normal
  06/18/2026 08 PM PDT            2.85            508         +              Normal
  06/18/2026 09 PM PDT            2.90            528         +              Normal
  06/18/2026 10 PM PDT            2.92            535         +              Normal
  06/18/2026 11 PM PDT            2.94            543         +              Normal
  06/19/2026 12 AM PDT            2.95            547         +              Normal
  06/19/2026 01 AM PDT            2.95            547         0              Normal
  06/19/2026 02 AM PDT            2.95            547         0              Normal
  06/19/2026 03 AM PDT            2.94            543         -              Normal
  06/19/2026 04 AM PDT            2.92            535         -              Normal
  06/19/2026 05 AM PDT            2.91            531         -              Normal
  06/19/2026 06 AM PDT            2.90            528         -              Normal
  06/19/2026 07 AM PDT            2.88            520         -              Normal
  06/19/2026 08 AM PDT            2.88            520         0              Normal
  06/19/2026 09 AM PDT            2.86            512         -              Normal
  06/19/2026 10 AM PDT            2.85            508         -              Normal
  06/19/2026 11 AM PDT            2.83            501         -              Normal
  06/19/2026 12 PM PDT            2.81            493         -              Normal
  06/19/2026 01 PM PDT            2.79            485         -              Normal
  06/19/2026 02 PM PDT            2.76            473         -              Normal
  06/19/2026 03 PM PDT            2.75            469         -              Normal
  06/19/2026 04 PM PDT            2.72            457         -              Normal
  06/19/2026 05 PM PDT            2.73            461         +              Normal
  06/19/2026 06 PM PDT            2.73            461         0              Normal
  06/19/2026 07 PM PDT            2.75            469         +              Normal
  06/19/2026 08 PM PDT            2.78            481         +              Normal
  06/19/2026 09 PM PDT            2.83            501         +              Normal
  06/19/2026 10 PM PDT            2.87            516         +              Normal
  06/19/2026 11 PM PDT            2.89            524         +              Normal
  06/20/2026 12 AM PDT            2.90            528         +              Normal
  06/20/2026 01 AM PDT            2.90            528         0              Normal
  06/20/2026 02 AM PDT            2.90            528         0              Normal
  06/20/2026 03 AM PDT            2.90            528         0              Normal
  06/20/2026 04 AM PDT            2.89            524         -              Normal
  06/20/2026 05 AM PDT            2.89            524         0              Normal
  06/20/2026 06 AM PDT            2.87            516         -              Normal
  06/20/2026 07 AM PDT            2.85            508         -              Normal
  06/20/2026 08 AM PDT            2.84            505         -              Normal
  06/20/2026 09 AM PDT            2.82            497         -              Normal
  06/20/2026 10 AM PDT            2.79            485         -              Normal
  06/20/2026 11 AM PDT            2.78            481         -              Normal
  06/20/2026 12 PM PDT            2.75            469         -              Normal
  06/20/2026 01 PM PDT            2.73            461         -              Normal
  06/20/2026 02 PM PDT            2.70            449         -              Normal
  06/20/2026 03 PM PDT            2.68            441         -              Normal
  06/20/2026 04 PM PDT            2.64            426         -              Normal
  06/20/2026 05 PM PDT            2.62            419         -              Normal
  06/20/2026 06 PM PDT            2.59            408         -              Normal
  06/20/2026 07 PM PDT            2.59            408         0              Normal
  06/20/2026 08 PM PDT            2.58            404         -              Normal
  06/20/2026 09 PM PDT            2.59            408         +              Normal
  06/20/2026 10 PM PDT            2.60            411         +              Normal
  06/20/2026 11 PM PDT            2.61            415         +              Normal
  06/21/2026 12 AM PDT            2.62            419         +              Normal
  06/21/2026 01 AM PDT            2.63            422         +              Normal
  06/21/2026 02 AM PDT            2.65            430         +              Normal
  06/21/2026 03 AM PDT            2.65            430         0              Normal
  06/21/2026 04 AM PDT            2.64            426         -              Normal
  06/21/2026 05 AM PDT            2.63            422         -              Normal
  06/21/2026 06 AM PDT            2.63            422         0              Normal
  06/21/2026 07 AM PDT            2.62            419         -              Normal
  06/21/2026 08 AM PDT            2.60            411         -              Normal
  06/21/2026 09 AM PDT            2.60            411         0              Normal
  06/21/2026 10 AM PDT            2.59            408         -              Normal
  06/21/2026 11 AM PDT            2.58            404         -              Normal
  06/21/2026 12 PM PDT            2.56            397         -              Normal
  06/21/2026 01 PM PDT            2.55            393         -              Normal
  06/21/2026 02 PM PDT            2.52            383         -              Normal
  06/21/2026 03 PM PDT            2.53            386         +              Normal
  06/21/2026 04 PM PDT            2.50            376         -              Normal
  06/21/2026 05 PM PDT            2.49            372         -              Normal
  06/21/2026 06 PM PDT            2.49            372         0              Normal
  06/21/2026 07 PM PDT            2.48            369         -              Normal
  06/21/2026 08 PM PDT            2.49            372         +              Normal
  06/21/2026 09 PM PDT            2.50            376         +              Normal
  06/21/2026 10 PM PDT            2.51            379         +              Normal
  06/21/2026 11 PM PDT            2.54            390         +              Normal
  06/22/2026 12 AM PDT            2.57            401         +              Normal
  06/22/2026 01 AM PDT            2.58            404         +              Normal
  06/22/2026 02 AM PDT            2.58            404         0              Normal
  06/22/2026 03 AM PDT            2.58            404         0              Normal
  06/22/2026 04 AM PDT            2.58            404         0              Normal
  06/22/2026 05 AM PDT            2.57            401         -              Normal
  06/22/2026 06 AM PDT            2.57            401         0              Normal
  06/22/2026 07 AM PDT            2.57            401         0              Normal
  06/22/2026 08 AM PDT            2.56            397         -              Normal
  06/22/2026 09 AM PDT            2.55            393         -              Normal
  06/22/2026 10 AM PDT            2.54            390         -              Normal
  06/22/2026 11 AM PDT            2.54            390         0              Normal
  06/22/2026 12 PM PDT            2.52            383         -              Normal
  06/22/2026 01 PM PDT            2.50            376         -              Normal
  06/22/2026 02 PM PDT            2.48            369         -              Normal
  06/22/2026 03 PM PDT            2.47            366         -              Normal
  06/22/2026 04 PM PDT            2.45            359         -              Normal
  06/22/2026 05 PM PDT            2.44            356         -              Normal
  06/22/2026 06 PM PDT            2.44            356         0              Normal
  06/22/2026 07 PM PDT            2.43            352         -              Normal
  06/22/2026 08 PM PDT            2.43            352         0              Normal
  06/22/2026 09 PM PDT            2.45            359         +              Normal
  06/22/2026 10 PM PDT            2.48            369         +              Normal
  06/22/2026 11 PM PDT            2.51            379         +              Normal
  06/23/2026 12 AM PDT            2.53            386         +              Normal
  06/23/2026 01 AM PDT            2.56            397         +              Normal
  06/23/2026 02 AM PDT            2.55            393         -              Normal
  06/23/2026 03 AM PDT            2.56            397         +              Normal
  06/23/2026 04 AM PDT            2.55            393         -              Normal
  06/23/2026 05 AM PDT            2.55            393         0              Normal
  06/23/2026 06 AM PDT            2.54            390         -              Normal
  06/23/2026 07 AM PDT            2.53            386         -              Normal
#
# FORECAST
#
# Date & Time  (Local)    Stage (Feet)     Flow (cfs)     Trend     Forecast Status
# ---------------------------------------------------------------------------------
  06/23/2026 08 AM PDT            2.52            383                        Normal
  06/23/2026 09 AM PDT            2.51            379         -              Normal
  06/23/2026 10 AM PDT            2.50            376         -              Normal
  06/23/2026 11 AM PDT            2.49            372         -              Normal
  06/23/2026 12 PM PDT            2.47            366         -              Normal
  06/23/2026 01 PM PDT            2.46            362         -              Normal
  06/23/2026 02 PM PDT            2.44            356         -              Normal
  06/23/2026 03 PM PDT            2.43            352         -              Normal
  06/23/2026 04 PM PDT            2.43            352         0              Normal
  06/23/2026 05 PM PDT            2.43            352         0              Normal
  06/23/2026 06 PM PDT            2.45            359         +              Normal
  06/23/2026 07 PM PDT            2.48            369         +              Normal
  06/23/2026 08 PM PDT            2.51            379         +              Normal
  06/23/2026 09 PM PDT            2.54            390         +              Normal
  06/23/2026 10 PM PDT            2.56            397         +              Normal
  06/23/2026 11 PM PDT            2.58            404         +              Normal
  06/24/2026 12 AM PDT            2.59            408         +              Normal
  06/24/2026 01 AM PDT            2.60            411         +              Normal
  06/24/2026 02 AM PDT            2.61            415         +              Normal
  06/24/2026 03 AM PDT            2.62            419         +              Normal
  06/24/2026 04 AM PDT            2.63            422         +              Normal
  06/24/2026 05 AM PDT            2.63            422         0              Normal
  06/24/2026 06 AM PDT            2.61            415         -              Normal
  06/24/2026 07 AM PDT            2.59            408         -              Normal
  06/24/2026 08 AM PDT            2.58            404         -              Normal
  06/24/2026 09 AM PDT            2.56            397         -              Normal
  06/24/2026 10 AM PDT            2.54            390         -              Normal
  06/24/2026 11 AM PDT            2.52            383         -              Normal
  06/24/2026 12 PM PDT            2.50            376         -              Normal
  06/24/2026 01 PM PDT            2.48            369         -              Normal
  06/24/2026 02 PM PDT            2.46            362         -              Normal
  06/24/2026 03 PM PDT            2.44            356         -              Normal
  06/24/2026 04 PM PDT            2.43            352         -              Normal
  06/24/2026 05 PM PDT            2.43            352         0              Normal
  06/24/2026 06 PM PDT            2.45            359         +              Normal
  06/24/2026 07 PM PDT            2.47            366         +              Normal
  06/24/2026 08 PM PDT            2.50            376         +              Normal
  06/24/2026 09 PM PDT            2.51            379         +              Normal
  06/24/2026 10 PM PDT            2.53            386         +              Normal
  06/24/2026 11 PM PDT            2.54            390         +              Normal
  06/25/2026 12 AM PDT            2.55            393         +              Normal
  06/25/2026 01 AM PDT            2.55            393         0              Normal
  06/25/2026 02 AM PDT            2.56            397         +              Normal
  06/25/2026 03 AM PDT            2.56            397         0              Normal
  06/25/2026 04 AM PDT            2.56            397         0              Normal
  06/25/2026 05 AM PDT            2.55            393         -              Normal
  06/25/2026 06 AM PDT            2.54            390         -              Normal
  06/25/2026 07 AM PDT            2.52            383         -              Normal
  06/25/2026 08 AM PDT            2.50            376         -              Normal
  06/25/2026 09 AM PDT            2.47            366         -              Normal
  06/25/2026 10 AM PDT            2.45            359         -              Normal
  06/25/2026 11 AM PDT            2.44            356         -              Normal
  06/25/2026 12 PM PDT            2.41            346         -              Normal
  06/25/2026 01 PM PDT            2.39            339         -              Normal
  06/25/2026 02 PM PDT            2.37            333         -              Normal
  06/25/2026 03 PM PDT            2.35            326         -              Normal
  06/25/2026 04 PM PDT            2.34            323         -              Normal
  06/25/2026 05 PM PDT            2.33            320         -              Normal
  06/25/2026 06 PM PDT            2.35            326         +              Normal
  06/25/2026 07 PM PDT            2.36            330         +              Normal
  06/25/2026 08 PM PDT            2.39            339         +              Normal
  06/25/2026 09 PM PDT            2.40            342         +              Normal
  06/25/2026 10 PM PDT            2.41            346         +              Normal
  06/25/2026 11 PM PDT            2.41            346         0              Normal
  06/26/2026 12 AM PDT            2.42            349         +              Normal
  06/26/2026 01 AM PDT            2.42            349         0              Normal
  06/26/2026 02 AM PDT            2.42            349         0              Normal
  06/26/2026 03 AM PDT            2.43            352         +              Normal
  06/26/2026 04 AM PDT            2.42            349         -              Normal
  06/26/2026 05 AM PDT            2.42            349         0              Normal
  06/26/2026 06 AM PDT            2.41            346         -              Normal
  06/26/2026 07 AM PDT            2.40            342         -              Normal
  06/26/2026 08 AM PDT            2.38            336         -              Normal
  06/26/2026 09 AM PDT            2.37            333         -              Normal
  06/26/2026 10 AM PDT            2.35            326         -              Normal
  06/26/2026 11 AM PDT            2.34            323         -              Normal
  06/26/2026 12 PM PDT            2.32            317         -              Normal
  06/26/2026 01 PM PDT            2.31            314         -              Normal
  06/26/2026 02 PM PDT            2.29            308         -              Normal
  06/26/2026 03 PM PDT            2.27            302         -              Normal
  06/26/2026 04 PM PDT            2.26            299         -              Normal
  06/26/2026 05 PM PDT            2.26            299         0              Normal
  06/26/2026 06 PM PDT            2.26            299         0              Normal
  06/26/2026 07 PM PDT            2.27            302         +              Normal
  06/26/2026 08 PM PDT            2.27            302         0              Normal
  06/26/2026 09 PM PDT            2.27            302         0              Normal
  06/26/2026 10 PM PDT            2.27            302         0              Normal
  06/26/2026 11 PM PDT            2.27            302         0              Normal
  06/27/2026 12 AM PDT            2.27            302         0              Normal
  06/27/2026 01 AM PDT            2.27            302         0              Normal
  06/27/2026 02 AM PDT            2.27            302         0              Normal
  06/27/2026 03 AM PDT            2.26            299         -              Normal
  06/27/2026 04 AM PDT            2.25            296         -              Normal
  06/27/2026 05 AM PDT            2.25            296         0              Normal
  06/27/2026 06 AM PDT            2.24            293         -              Normal
  06/27/2026 07 AM PDT            2.23            290         -              Normal
  06/27/2026 08 AM PDT            2.21            284         -              Normal
  06/27/2026 09 AM PDT            2.20            281         -              Normal
  06/27/2026 10 AM PDT            2.19            278         -              Normal
  06/27/2026 11 AM PDT            2.18            276         -              Normal
  06/27/2026 12 PM PDT            2.17            273         -              Normal
  06/27/2026 01 PM PDT            2.16            270         -              Normal
  06/27/2026 02 PM PDT            2.14            264         -              Normal
  06/27/2026 03 PM PDT            2.13            262         -              Normal
  06/27/2026 04 PM PDT            2.13            262         0              Normal
  06/27/2026 05 PM PDT            2.13            262         0              Normal
  06/27/2026 06 PM PDT            2.13            262         0              Normal
  06/27/2026 07 PM PDT            2.14            264         +              Normal
  06/27/2026 08 PM PDT            2.14            264         0              Normal
  06/27/2026 09 PM PDT            2.15            267         +              Normal
  06/27/2026 10 PM PDT            2.15            267         0              Normal
  06/27/2026 11 PM PDT            2.15            267         0              Normal
  06/28/2026 12 AM PDT            2.15            267         0              Normal
  06/28/2026 01 AM PDT            2.15            267         0              Normal
  06/28/2026 02 AM PDT            2.15            267         0              Normal
  06/28/2026 03 AM PDT            2.15            267         0              Normal
  06/28/2026 04 AM PDT            2.14            264         -              Normal
  06/28/2026 05 AM PDT            2.14            264         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.