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: Mar 02 2026 at 1:04 PM PSTNext Issuance: Mar 03 2026 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:  03/02/2026 at 01:05 PM PST
# Data Interval:  1 Hour
#
# Most Recent Date & Time of Maximum Observed:  02/25/2026 at 08:00 PM PST
# Maximum Observed Stage:                       2.95 Feet
# Maximum Observed Flow:                        528 cfs
#
# Earliest Date & Time of Maximum Forecast:     03/02/2026 at 07:00 PM PST
# Maximum Forecast Stage:                       2.46 Feet
# Maximum Forecast Flow:                        346 cfs
#
# OBSERVED
#
# Date & Time  (Local)    Stage (Feet)     Flow (cfs)     Trend     Observed Status
# ---------------------------------------------------------------------------------
  02/25/2026 01 PM PST            2.59            390                        Normal
  02/25/2026 02 PM PST            2.68            422         +              Normal
  02/25/2026 03 PM PST            2.80            469         +              Normal
  02/25/2026 04 PM PST            2.88            501         +              Normal
  02/25/2026 05 PM PST            2.92            516         +              Normal
  02/25/2026 06 PM PST            2.94            524         +              Normal
  02/25/2026 07 PM PST            2.94            524         0              Normal
  02/25/2026 08 PM PST            2.95            528         +              Normal
  02/25/2026 09 PM PST            2.94            524         -              Normal
  02/25/2026 10 PM PST            2.92            516         -              Normal
  02/25/2026 11 PM PST            2.91            512         -              Normal
  02/26/2026 12 AM PST            2.90            508         -              Normal
  02/26/2026 01 AM PST            2.88            501         -              Normal
  02/26/2026 02 AM PST            2.87            497         -              Normal
  02/26/2026 03 AM PST            2.86            493         -              Normal
  02/26/2026 04 AM PST            2.84            485         -              Normal
  02/26/2026 05 AM PST            2.82            477         -              Normal
  02/26/2026 06 AM PST            2.80            469         -              Normal
  02/26/2026 07 AM PST            2.78            461         -              Normal
  02/26/2026 08 AM PST            2.77            457         -              Normal
  02/26/2026 09 AM PST            2.75            449         -              Normal
  02/26/2026 10 AM PST            2.74            445         -              Normal
  02/26/2026 11 AM PST            2.72            438         -              Normal
  02/26/2026 12 PM PST            2.73            441         +              Normal
  02/26/2026 01 PM PST            2.74            445         +              Normal
  02/26/2026 02 PM PST            2.78            461         +              Normal
  02/26/2026 03 PM PST            2.81            473         +              Normal
  02/26/2026 04 PM PST            2.85            489         +              Normal
  02/26/2026 05 PM PST            2.88            501         +              Normal
  02/26/2026 06 PM PST            2.90            508         +              Normal
  02/26/2026 07 PM PST            2.91            512         +              Normal
  02/26/2026 08 PM PST            2.92            516         +              Normal
  02/26/2026 09 PM PST            2.89            505         -              Normal
  02/26/2026 10 PM PST            2.88            501         -              Normal
  02/26/2026 11 PM PST            2.88            501         0              Normal
  02/27/2026 12 AM PST            2.85            489         -              Normal
  02/27/2026 01 AM PST            2.83            481         -              Normal
  02/27/2026 02 AM PST            2.81            473         -              Normal
  02/27/2026 03 AM PST            2.78            461         -              Normal
  02/27/2026 04 AM PST            2.76            453         -              Normal
  02/27/2026 05 AM PST            2.75            449         -              Normal
  02/27/2026 06 AM PST            2.73            441         -              Normal
  02/27/2026 07 AM PST            2.70            430         -              Normal
  02/27/2026 08 AM PST            2.69            426         -              Normal
  02/27/2026 09 AM PST            2.67            419         -              Normal
  02/27/2026 10 AM PST            2.66            415         -              Normal
  02/27/2026 11 AM PST            2.64            408         -              Normal
  02/27/2026 12 PM PST            2.63            404         -              Normal
  02/27/2026 01 PM PST            2.62            401         -              Normal
  02/27/2026 02 PM PST            2.63            404         +              Normal
  02/27/2026 03 PM PST            2.63            404         0              Normal
  02/27/2026 04 PM PST            2.64            408         +              Normal
  02/27/2026 05 PM PST            2.67            419         +              Normal
  02/27/2026 06 PM PST            2.71            434         +              Normal
  02/27/2026 07 PM PST            2.73            441         +              Normal
  02/27/2026 08 PM PST            2.75            449         +              Normal
  02/27/2026 09 PM PST            2.78            461         +              Normal
  02/27/2026 10 PM PST            2.77            457         -              Normal
  02/27/2026 11 PM PST            2.77            457         0              Normal
  02/28/2026 12 AM PST            2.75            449         -              Normal
  02/28/2026 01 AM PST            2.73            441         -              Normal
  02/28/2026 02 AM PST            2.71            434         -              Normal
  02/28/2026 03 AM PST            2.70            430         -              Normal
  02/28/2026 04 AM PST            2.68            422         -              Normal
  02/28/2026 05 AM PST            2.67            419         -              Normal
  02/28/2026 06 AM PST            2.66            415         -              Normal
  02/28/2026 07 AM PST            2.64            408         -              Normal
  02/28/2026 08 AM PST            2.62            401         -              Normal
  02/28/2026 09 AM PST            2.62            401         0              Normal
  02/28/2026 10 AM PST            2.60            393         -              Normal
  02/28/2026 11 AM PST            2.58            386         -              Normal
  02/28/2026 12 PM PST            2.57            383         -              Normal
  02/28/2026 01 PM PST            2.56            379         -              Normal
  02/28/2026 02 PM PST            2.57            383         +              Normal
  02/28/2026 03 PM PST            2.57            383         0              Normal
  02/28/2026 04 PM PST            2.59            390         +              Normal
  02/28/2026 05 PM PST            2.62            401         +              Normal
  02/28/2026 06 PM PST            2.65            411         +              Normal
  02/28/2026 07 PM PST            2.69            426         +              Normal
  02/28/2026 08 PM PST            2.72            438         +              Normal
  02/28/2026 09 PM PST            2.75            449         +              Normal
  02/28/2026 10 PM PST            2.75            449         0              Normal
  02/28/2026 11 PM PST            2.75            449         0              Normal
  03/01/2026 12 AM PST            2.74            445         -              Normal
  03/01/2026 01 AM PST            2.74            445         0              Normal
  03/01/2026 02 AM PST            2.73            441         -              Normal
  03/01/2026 03 AM PST            2.72            438         -              Normal
  03/01/2026 04 AM PST            2.71            434         -              Normal
  03/01/2026 05 AM PST            2.70            430         -              Normal
  03/01/2026 06 AM PST            2.70            430         0              Normal
  03/01/2026 07 AM PST            2.69            426         -              Normal
  03/01/2026 08 AM PST            2.68            422         -              Normal
  03/01/2026 09 AM PST            2.66            415         -              Normal
  03/01/2026 10 AM PST            2.65            411         -              Normal
  03/01/2026 11 AM PST            2.63            404         -              Normal
  03/01/2026 12 PM PST            2.64            408         +              Normal
  03/01/2026 01 PM PST            2.64            408         0              Normal
  03/01/2026 02 PM PST            2.62            401         -              Normal
  03/01/2026 03 PM PST            2.63            404         +              Normal
  03/01/2026 04 PM PST            2.63            404         0              Normal
  03/01/2026 05 PM PST            2.65            411         +              Normal
  03/01/2026 06 PM PST            2.65            411         0              Normal
  03/01/2026 07 PM PST            2.66            415         +              Normal
  03/01/2026 08 PM PST            2.68            422         +              Normal
  03/01/2026 09 PM PST            2.67            419         -              Normal
  03/01/2026 10 PM PST            2.66            415         -              Normal
  03/01/2026 11 PM PST            2.65            411         -              Normal
  03/02/2026 12 AM PST            2.64            408         -              Normal
  03/02/2026 01 AM PST            2.63            404         -              Normal
  03/02/2026 02 AM PST            2.61            397         -              Normal
  03/02/2026 03 AM PST            2.60            393         -              Normal
  03/02/2026 04 AM PST            2.59            390         -              Normal
  03/02/2026 05 AM PST            2.57            383         -              Normal
  03/02/2026 06 AM PST            2.56            379         -              Normal
  03/02/2026 07 AM PST            2.55            376         -              Normal
  03/02/2026 08 AM PST            2.54            372         -              Normal
  03/02/2026 09 AM PST            2.53            369         -              Normal
  03/02/2026 10 AM PST            2.51            362         -              Normal
  03/02/2026 11 AM PST            2.49            356         -              Normal
  03/02/2026 12 PM PST            2.47            349         -              Normal
  03/02/2026 01 PM PST            2.46            346         -              Normal
#
# FORECAST
#
# Date & Time  (Local)    Stage (Feet)     Flow (cfs)     Trend     Forecast Status
# ---------------------------------------------------------------------------------
  03/02/2026 02 PM PST            2.45            342                        Normal
  03/02/2026 03 PM PST            2.45            342         0              Normal
  03/02/2026 04 PM PST            2.44            339         -              Normal
  03/02/2026 05 PM PST            2.45            342         +              Normal
  03/02/2026 06 PM PST            2.45            342         0              Normal
  03/02/2026 07 PM PST            2.46            346         +              Normal
  03/02/2026 08 PM PST            2.46            346         0              Normal
  03/02/2026 09 PM PST            2.46            346         0              Normal
  03/02/2026 10 PM PST            2.46            346         0              Normal
  03/02/2026 11 PM PST            2.46            346         0              Normal
  03/03/2026 12 AM PST            2.46            346         0              Normal
  03/03/2026 01 AM PST            2.45            342         -              Normal
  03/03/2026 02 AM PST            2.44            339         -              Normal
  03/03/2026 03 AM PST            2.44            339         0              Normal
  03/03/2026 04 AM PST            2.43            336         -              Normal
  03/03/2026 05 AM PST            2.42            333         -              Normal
  03/03/2026 06 AM PST            2.41            330         -              Normal
  03/03/2026 07 AM PST            2.40            326         -              Normal
  03/03/2026 08 AM PST            2.38            320         -              Normal
  03/03/2026 09 AM PST            2.37            317         -              Normal
  03/03/2026 10 AM PST            2.35            311         -              Normal
  03/03/2026 11 AM PST            2.34            308         -              Normal
  03/03/2026 12 PM PST            2.33            305         -              Normal
  03/03/2026 01 PM PST            2.32            302         -              Normal
  03/03/2026 02 PM PST            2.31            299         -              Normal
  03/03/2026 03 PM PST            2.31            299         0              Normal
  03/03/2026 04 PM PST            2.31            299         0              Normal
  03/03/2026 05 PM PST            2.32            302         +              Normal
  03/03/2026 06 PM PST            2.33            305         +              Normal
  03/03/2026 07 PM PST            2.34            308         +              Normal
  03/03/2026 08 PM PST            2.35            311         +              Normal
  03/03/2026 09 PM PST            2.35            311         0              Normal
  03/03/2026 10 PM PST            2.36            314         +              Normal
  03/03/2026 11 PM PST            2.37            317         +              Normal
  03/04/2026 12 AM PST            2.38            320         +              Normal
  03/04/2026 01 AM PST            2.39            323         +              Normal
  03/04/2026 02 AM PST            2.40            326         +              Normal
  03/04/2026 03 AM PST            2.40            326         0              Normal
  03/04/2026 04 AM PST            2.41            330         +              Normal
  03/04/2026 05 AM PST            2.41            330         0              Normal
  03/04/2026 06 AM PST            2.41            330         0              Normal
  03/04/2026 07 AM PST            2.40            326         -              Normal
  03/04/2026 08 AM PST            2.40            326         0              Normal
  03/04/2026 09 AM PST            2.40            326         0              Normal
  03/04/2026 10 AM PST            2.39            323         -              Normal
  03/04/2026 11 AM PST            2.38            320         -              Normal
  03/04/2026 12 PM PST            2.37            317         -              Normal
  03/04/2026 01 PM PST            2.37            317         0              Normal
  03/04/2026 02 PM PST            2.36            314         -              Normal
  03/04/2026 03 PM PST            2.37            317         +              Normal
  03/04/2026 04 PM PST            2.37            317         0              Normal
  03/04/2026 05 PM PST            2.37            317         0              Normal
  03/04/2026 06 PM PST            2.37            317         0              Normal
  03/04/2026 07 PM PST            2.37            317         0              Normal
  03/04/2026 08 PM PST            2.37            317         0              Normal
  03/04/2026 09 PM PST            2.36            314         -              Normal
  03/04/2026 10 PM PST            2.36            314         0              Normal
  03/04/2026 11 PM PST            2.35            311         -              Normal
  03/05/2026 12 AM PST            2.35            311         0              Normal
  03/05/2026 01 AM PST            2.35            311         0              Normal
  03/05/2026 02 AM PST            2.34            308         -              Normal
  03/05/2026 03 AM PST            2.33            305         -              Normal
  03/05/2026 04 AM PST            2.33            305         0              Normal
  03/05/2026 05 AM PST            2.32            302         -              Normal
  03/05/2026 06 AM PST            2.32            302         0              Normal
  03/05/2026 07 AM PST            2.31            299         -              Normal
  03/05/2026 08 AM PST            2.30            296         -              Normal
  03/05/2026 09 AM PST            2.29            293         -              Normal
  03/05/2026 10 AM PST            2.29            293         0              Normal
  03/05/2026 11 AM PST            2.28            290         -              Normal
  03/05/2026 12 PM PST            2.27            287         -              Normal
  03/05/2026 01 PM PST            2.26            284         -              Normal
  03/05/2026 02 PM PST            2.25            281         -              Normal
  03/05/2026 03 PM PST            2.25            281         0              Normal
  03/05/2026 04 PM PST            2.25            281         0              Normal
  03/05/2026 05 PM PST            2.25            281         0              Normal
  03/05/2026 06 PM PST            2.25            281         0              Normal
  03/05/2026 07 PM PST            2.25            281         0              Normal
  03/05/2026 08 PM PST            2.24            278         -              Normal
  03/05/2026 09 PM PST            2.24            278         0              Normal
  03/05/2026 10 PM PST            2.23            276         -              Normal
  03/05/2026 11 PM PST            2.23            276         0              Normal
  03/06/2026 12 AM PST            2.23            276         0              Normal
  03/06/2026 01 AM PST            2.22            273         -              Normal
  03/06/2026 02 AM PST            2.22            273         0              Normal
  03/06/2026 03 AM PST            2.21            270         -              Normal
  03/06/2026 04 AM PST            2.21            270         0              Normal
  03/06/2026 05 AM PST            2.20            267         -              Normal
  03/06/2026 06 AM PST            2.19            264         -              Normal
  03/06/2026 07 AM PST            2.19            264         0              Normal
  03/06/2026 08 AM PST            2.18            262         -              Normal
  03/06/2026 09 AM PST            2.17            259         -              Normal
  03/06/2026 10 AM PST            2.16            256         -              Normal
  03/06/2026 11 AM PST            2.16            256         0              Normal
  03/06/2026 12 PM PST            2.15            254         -              Normal
  03/06/2026 01 PM PST            2.15            254         0              Normal
  03/06/2026 02 PM PST            2.14            251         -              Normal
  03/06/2026 03 PM PST            2.14            251         0              Normal
  03/06/2026 04 PM PST            2.14            251         0              Normal
  03/06/2026 05 PM PST            2.15            254         +              Normal
  03/06/2026 06 PM PST            2.15            254         0              Normal
  03/06/2026 07 PM PST            2.15            254         0              Normal
  03/06/2026 08 PM PST            2.15            254         0              Normal
  03/06/2026 09 PM PST            2.15            254         0              Normal
  03/06/2026 10 PM PST            2.15            254         0              Normal
  03/06/2026 11 PM PST            2.14            251         -              Normal
  03/07/2026 12 AM PST            2.14            251         0              Normal
  03/07/2026 01 AM PST            2.14            251         0              Normal
  03/07/2026 02 AM PST            2.13            248         -              Normal
  03/07/2026 03 AM PST            2.13            248         0              Normal
  03/07/2026 04 AM PST            2.12            246         -              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.