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 06 2025 at 7:47 AM PDTNext Issuance: Jul 07 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:  07/06/2025 at 07:47 AM PDT
# Data Interval:  1 Hour
#
# Most Recent Date & Time of Maximum Observed:  07/03/2025 at 09:00 AM PDT
# Maximum Observed Stage:                       2.37 Feet
# Maximum Observed Flow:                        349 cfs
#
# Earliest Date & Time of Maximum Forecast:     07/07/2025 at 05:00 AM PDT
# Maximum Forecast Stage:                       2.00 Feet
# Maximum Forecast Flow:                        228 cfs
#
# OBSERVED
#
# Date & Time  (Local)    Stage (Feet)     Flow (cfs)     Trend     Observed Status
# ---------------------------------------------------------------------------------
  07/01/2025 07 AM PDT            2.24            303                        Normal
  07/01/2025 08 AM PDT            2.23            300         -              Normal
  07/01/2025 09 AM PDT            2.22            296         -              Normal
  07/01/2025 10 AM PDT            2.21            293         -              Normal
  07/01/2025 11 AM PDT            2.19            286         -              Normal
  07/01/2025 12 PM PDT            2.19            286         0              Normal
  07/01/2025 01 PM PDT            2.16            276         -              Normal
  07/01/2025 02 PM PDT            2.15            273         -              Normal
  07/01/2025 03 PM PDT            2.14            270         -              Normal
  07/01/2025 04 PM PDT            2.12            264         -              Normal
  07/01/2025 05 PM PDT            2.12            264         0              Normal
  07/01/2025 06 PM PDT            2.11            261         -              Normal
  07/01/2025 07 PM PDT            2.10            257         -              Normal
  07/01/2025 08 PM PDT            2.12            264         +              Normal
  07/01/2025 09 PM PDT            2.11            261         -              Normal
  07/01/2025 10 PM PDT            2.13            267         +              Normal
  07/01/2025 11 PM PDT            2.13            267         0              Normal
  07/02/2025 12 AM PDT            2.16            276         +              Normal
  07/02/2025 01 AM PDT            2.19            286         +              Normal
  07/02/2025 02 AM PDT            2.20            289         +              Normal
  07/02/2025 03 AM PDT            2.19            286         -              Normal
  07/02/2025 04 AM PDT            2.19            286         0              Normal
  07/02/2025 05 AM PDT            2.20            289         +              Normal
  07/02/2025 06 AM PDT            2.20            289         0              Normal
  07/02/2025 07 AM PDT            2.19            286         -              Normal
  07/02/2025 08 AM PDT            2.19            286         0              Normal
  07/02/2025 09 AM PDT            2.18            283         -              Normal
  07/02/2025 10 AM PDT            2.19            286         +              Normal
  07/02/2025 11 AM PDT            2.17            280         -              Normal
  07/02/2025 12 PM PDT            2.17            280         0              Normal
  07/02/2025 01 PM PDT            2.14            270         -              Normal
  07/02/2025 02 PM PDT            2.12            264         -              Normal
  07/02/2025 03 PM PDT            2.12            264         0              Normal
  07/02/2025 04 PM PDT            2.10            257         -              Normal
  07/02/2025 05 PM PDT            2.06            245         -              Normal
  07/02/2025 06 PM PDT            2.06            245         0              Normal
  07/02/2025 07 PM PDT            2.06            245         0              Normal
  07/02/2025 08 PM PDT            2.07            248         +              Normal
  07/02/2025 09 PM PDT            2.10            257         +              Normal
  07/02/2025 10 PM PDT            2.13            267         +              Normal
  07/02/2025 11 PM PDT            2.21            293         +              Normal
  07/03/2025 12 AM PDT            2.25            306         +              Normal
  07/03/2025 01 AM PDT            2.27            313         +              Normal
  07/03/2025 02 AM PDT            2.34            338         +              Normal
  07/03/2025 03 AM PDT            2.36            346         +              Normal
  07/03/2025 04 AM PDT            2.35            342         -              Normal
  07/03/2025 05 AM PDT            2.33            335         -              Normal
  07/03/2025 06 AM PDT            2.34            338         +              Normal
  07/03/2025 07 AM PDT            2.35            342         +              Normal
  07/03/2025 08 AM PDT            2.36            346         +              Normal
  07/03/2025 09 AM PDT            2.37            349         +              Normal
  07/03/2025 10 AM PDT            2.32            331         -              Normal
  07/03/2025 11 AM PDT            2.31            327         -              Normal
  07/03/2025 12 PM PDT            2.31            327         0              Normal
  07/03/2025 01 PM PDT            2.27            313         -              Normal
  07/03/2025 02 PM PDT            2.25            306         -              Normal
  07/03/2025 03 PM PDT            2.22            296         -              Normal
  07/03/2025 04 PM PDT            2.19            286         -              Normal
  07/03/2025 05 PM PDT            2.17            280         -              Normal
  07/03/2025 06 PM PDT            2.15            273         -              Normal
  07/03/2025 07 PM PDT            2.13            267         -              Normal
  07/03/2025 08 PM PDT            2.13            267         0              Normal
  07/03/2025 09 PM PDT            2.13            267         0              Normal
  07/03/2025 10 PM PDT            2.14            270         +              Normal
  07/03/2025 11 PM PDT            2.13            267         -              Normal
  07/04/2025 12 AM PDT            2.14            270         +              Normal
  07/04/2025 01 AM PDT            2.16            276         +              Normal
  07/04/2025 02 AM PDT            2.15            273         -              Normal
  07/04/2025 03 AM PDT            2.16            276         +              Normal
  07/04/2025 04 AM PDT            2.15            273         -              Normal
  07/04/2025 05 AM PDT            2.16            276         +              Normal
  07/04/2025 06 AM PDT            2.15            273         -              Normal
  07/04/2025 07 AM PDT            2.15            273         0              Normal
  07/04/2025 08 AM PDT            2.13            267         -              Normal
  07/04/2025 09 AM PDT            2.14            270         +              Normal
  07/04/2025 10 AM PDT            2.12            264         -              Normal
  07/04/2025 11 AM PDT            2.11            261         -              Normal
  07/04/2025 12 PM PDT            2.10            257         -              Normal
  07/04/2025 01 PM PDT            2.09            254         -              Normal
  07/04/2025 02 PM PDT            2.07            248         -              Normal
  07/04/2025 03 PM PDT            2.04            239         -              Normal
  07/04/2025 04 PM PDT            2.04            239         0              Normal
  07/04/2025 05 PM PDT            2.01            231         -              Normal
  07/04/2025 06 PM PDT            1.98            222         -              Normal
  07/04/2025 07 PM PDT            1.97            219         -              Normal
  07/04/2025 08 PM PDT            1.97            219         0              Normal
  07/04/2025 09 PM PDT            1.97            219         0              Normal
  07/04/2025 10 PM PDT            1.97            219         0              Normal
  07/04/2025 11 PM PDT            1.97            219         0              Normal
  07/05/2025 12 AM PDT            1.98            222         +              Normal
  07/05/2025 01 AM PDT            1.98            222         0              Normal
  07/05/2025 02 AM PDT            1.99            225         +              Normal
  07/05/2025 03 AM PDT            2.00            228         +              Normal
  07/05/2025 04 AM PDT            2.00            228         0              Normal
  07/05/2025 05 AM PDT            2.00            228         0              Normal
  07/05/2025 06 AM PDT            2.00            228         0              Normal
  07/05/2025 07 AM PDT            2.00            228         0              Normal
  07/05/2025 08 AM PDT            1.99            225         -              Normal
  07/05/2025 09 AM PDT            2.00            228         +              Normal
  07/05/2025 10 AM PDT            1.98            222         -              Normal
  07/05/2025 11 AM PDT            2.00            228         +              Normal
  07/05/2025 12 PM PDT            1.97            219         -              Normal
  07/05/2025 01 PM PDT            1.96            216         -              Normal
  07/05/2025 02 PM PDT            1.96            216         0              Normal
  07/05/2025 03 PM PDT            1.94            211         -              Normal
  07/05/2025 04 PM PDT            1.92            205         -              Normal
  07/05/2025 05 PM PDT            1.91            203         -              Normal
  07/05/2025 06 PM PDT            1.89            197         -              Normal
  07/05/2025 07 PM PDT            1.86            190         -              Normal
  07/05/2025 08 PM PDT            1.86            190         0              Normal
  07/05/2025 09 PM PDT            1.85            187         -              Normal
  07/05/2025 10 PM PDT            1.85            187         0              Normal
  07/05/2025 11 PM PDT            1.87            192         +              Normal
  07/06/2025 12 AM PDT            1.87            192         0              Normal
  07/06/2025 01 AM PDT            1.88            195         +              Normal
  07/06/2025 02 AM PDT            1.90            200         +              Normal
  07/06/2025 03 AM PDT            1.90            200         0              Normal
  07/06/2025 04 AM PDT            1.90            200         0              Normal
  07/06/2025 05 AM PDT            1.90            200         0              Normal
  07/06/2025 06 AM PDT            1.90            200         0              Normal
  07/06/2025 07 AM PDT            1.89            197         -              Normal
#
# FORECAST
#
# Date & Time  (Local)    Stage (Feet)     Flow (cfs)     Trend     Forecast Status
# ---------------------------------------------------------------------------------
  07/06/2025 08 AM PDT            1.88            195                        Normal
  07/06/2025 09 AM PDT            1.87            192         -              Normal
  07/06/2025 10 AM PDT            1.87            192         0              Normal
  07/06/2025 11 AM PDT            1.86            190         -              Normal
  07/06/2025 12 PM PDT            1.86            190         0              Normal
  07/06/2025 01 PM PDT            1.85            187         -              Normal
  07/06/2025 02 PM PDT            1.84            185         -              Normal
  07/06/2025 03 PM PDT            1.83            182         -              Normal
  07/06/2025 04 PM PDT            1.83            182         0              Normal
  07/06/2025 05 PM PDT            1.83            182         0              Normal
  07/06/2025 06 PM PDT            1.85            187         +              Normal
  07/06/2025 07 PM PDT            1.87            192         +              Normal
  07/06/2025 08 PM PDT            1.88            195         +              Normal
  07/06/2025 09 PM PDT            1.90            200         +              Normal
  07/06/2025 10 PM PDT            1.92            205         +              Normal
  07/06/2025 11 PM PDT            1.93            208         +              Normal
  07/07/2025 12 AM PDT            1.94            211         +              Normal
  07/07/2025 01 AM PDT            1.96            216         +              Normal
  07/07/2025 02 AM PDT            1.97            219         +              Normal
  07/07/2025 03 AM PDT            1.98            222         +              Normal
  07/07/2025 04 AM PDT            1.99            225         +              Normal
  07/07/2025 05 AM PDT            2.00            228         +              Normal
  07/07/2025 06 AM PDT            1.99            225         -              Normal
  07/07/2025 07 AM PDT            1.98            222         -              Normal
  07/07/2025 08 AM PDT            1.97            219         -              Normal
  07/07/2025 09 AM PDT            1.96            216         -              Normal
  07/07/2025 10 AM PDT            1.95            214         -              Normal
  07/07/2025 11 AM PDT            1.94            211         -              Normal
  07/07/2025 12 PM PDT            1.93            208         -              Normal
  07/07/2025 01 PM PDT            1.92            205         -              Normal
  07/07/2025 02 PM PDT            1.91            203         -              Normal
  07/07/2025 03 PM PDT            1.90            200         -              Normal
  07/07/2025 04 PM PDT            1.89            197         -              Normal
  07/07/2025 05 PM PDT            1.89            197         0              Normal
  07/07/2025 06 PM PDT            1.90            200         +              Normal
  07/07/2025 07 PM PDT            1.92            205         +              Normal
  07/07/2025 08 PM PDT            1.93            208         +              Normal
  07/07/2025 09 PM PDT            1.94            211         +              Normal
  07/07/2025 10 PM PDT            1.95            214         +              Normal
  07/07/2025 11 PM PDT            1.96            216         +              Normal
  07/08/2025 12 AM PDT            1.97            219         +              Normal
  07/08/2025 01 AM PDT            1.98            222         +              Normal
  07/08/2025 02 AM PDT            1.98            222         0              Normal
  07/08/2025 03 AM PDT            1.99            225         +              Normal
  07/08/2025 04 AM PDT            1.99            225         0              Normal
  07/08/2025 05 AM PDT            2.00            228         +              Normal
  07/08/2025 06 AM PDT            1.99            225         -              Normal
  07/08/2025 07 AM PDT            1.98            222         -              Normal
  07/08/2025 08 AM PDT            1.97            219         -              Normal
  07/08/2025 09 AM PDT            1.95            214         -              Normal
  07/08/2025 10 AM PDT            1.94            211         -              Normal
  07/08/2025 11 AM PDT            1.93            208         -              Normal
  07/08/2025 12 PM PDT            1.92            205         -              Normal
  07/08/2025 01 PM PDT            1.91            203         -              Normal
  07/08/2025 02 PM PDT            1.89            197         -              Normal
  07/08/2025 03 PM PDT            1.88            195         -              Normal
  07/08/2025 04 PM PDT            1.88            195         0              Normal
  07/08/2025 05 PM PDT            1.88            195         0              Normal
  07/08/2025 06 PM PDT            1.88            195         0              Normal
  07/08/2025 07 PM PDT            1.89            197         +              Normal
  07/08/2025 08 PM PDT            1.89            197         0              Normal
  07/08/2025 09 PM PDT            1.90            200         +              Normal
  07/08/2025 10 PM PDT            1.91            203         +              Normal
  07/08/2025 11 PM PDT            1.91            203         0              Normal
  07/09/2025 12 AM PDT            1.91            203         0              Normal
  07/09/2025 01 AM PDT            1.92            205         +              Normal
  07/09/2025 02 AM PDT            1.92            205         0              Normal
  07/09/2025 03 AM PDT            1.92            205         0              Normal
  07/09/2025 04 AM PDT            1.92            205         0              Normal
  07/09/2025 05 AM PDT            1.92            205         0              Normal
  07/09/2025 06 AM PDT            1.91            203         -              Normal
  07/09/2025 07 AM PDT            1.90            200         -              Normal
  07/09/2025 08 AM PDT            1.89            197         -              Normal
  07/09/2025 09 AM PDT            1.88            195         -              Normal
  07/09/2025 10 AM PDT            1.87            192         -              Normal
  07/09/2025 11 AM PDT            1.86            190         -              Normal
  07/09/2025 12 PM PDT            1.85            187         -              Normal
  07/09/2025 01 PM PDT            1.85            187         0              Normal
  07/09/2025 02 PM PDT            1.83            182         -              Normal
  07/09/2025 03 PM PDT            1.82            180         -              Normal
  07/09/2025 04 PM PDT            1.82            180         0              Normal
  07/09/2025 05 PM PDT            1.82            180         0              Normal
  07/09/2025 06 PM PDT            1.82            180         0              Normal
  07/09/2025 07 PM PDT            1.83            182         +              Normal
  07/09/2025 08 PM PDT            1.83            182         0              Normal
  07/09/2025 09 PM PDT            1.84            185         +              Normal
  07/09/2025 10 PM PDT            1.84            185         0              Normal
  07/09/2025 11 PM PDT            1.84            185         0              Normal
  07/10/2025 12 AM PDT            1.84            185         0              Normal
  07/10/2025 01 AM PDT            1.84            185         0              Normal
  07/10/2025 02 AM PDT            1.84            185         0              Normal
  07/10/2025 03 AM PDT            1.84            185         0              Normal
  07/10/2025 04 AM PDT            1.83            182         -              Normal
  07/10/2025 05 AM PDT            1.83            182         0              Normal
  07/10/2025 06 AM PDT            1.82            180         -              Normal
  07/10/2025 07 AM PDT            1.81            177         -              Normal
  07/10/2025 08 AM PDT            1.81            177         0              Normal
  07/10/2025 09 AM PDT            1.80            175         -              Normal
  07/10/2025 10 AM PDT            1.79            172         -              Normal
  07/10/2025 11 AM PDT            1.78            170         -              Normal
  07/10/2025 12 PM PDT            1.78            170         0              Normal
  07/10/2025 01 PM PDT            1.77            167         -              Normal
  07/10/2025 02 PM PDT            1.76            165         -              Normal
  07/10/2025 03 PM PDT            1.76            165         0              Normal
  07/10/2025 04 PM PDT            1.75            163         -              Normal
  07/10/2025 05 PM PDT            1.75            163         0              Normal
  07/10/2025 06 PM PDT            1.76            165         +              Normal
  07/10/2025 07 PM PDT            1.77            167         +              Normal
  07/10/2025 08 PM PDT            1.77            167         0              Normal
  07/10/2025 09 PM PDT            1.78            170         +              Normal
  07/10/2025 10 PM PDT            1.78            170         0              Normal
  07/10/2025 11 PM PDT            1.78            170         0              Normal
  07/11/2025 12 AM PDT            1.79            172         +              Normal
  07/11/2025 01 AM PDT            1.79            172         0              Normal
  07/11/2025 02 AM PDT            1.79            172         0              Normal
  07/11/2025 03 AM PDT            1.79            172         0              Normal
  07/11/2025 04 AM PDT            1.78            170         -              Normal
  07/11/2025 05 AM PDT            1.78            170         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.