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

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WALKER RIVER - MASON AT SNYDER LANE (MASN2)
Latitude: 38.92º NLongitude: 119.19º WElevation: 4420 FeetForecast Type: Official Location
Location: Lyon County in NevadaBulletin Group: Eastern SierraRiver Group: Eastern Sierra
Issuance Time: Mar 13 2026 at 7:01 AM PDTNext Issuance: Mar 13 2026 at 3:00 PM PDT
Action/Monitor: 9.0 FeetMinor Flood: 9.8 FeetModerate Flood: 11.0 FeetMajor Flood: 11.6 Feet
Please Note:

# Tabular Observed and Forecast Hydrograph Information
#
# Location: Walker River - Mason at Snyder Lane (MASN2)
#
# File Generation Time:  03/13/2026 at 07:01 AM PDT
# Data Interval:  1 Hour
#
# Most Recent Date & Time of Maximum Observed:  03/08/2026 at 08:00 AM PDT
# Maximum Observed Stage:                       5.01 Feet
# Maximum Observed Flow:                        276 cfs
#
# Earliest Date & Time of Maximum Forecast:     03/18/2026 at 02:00 AM PDT
# Maximum Forecast Stage:                       4.85 Feet
# Maximum Forecast Flow:                        243 cfs
#
# OBSERVED
#
# Date & Time  (Local)    Stage (Feet)     Flow (cfs)     Trend     Observed Status
# ---------------------------------------------------------------------------------
  03/08/2026 07 AM PDT            5.00            274                        Normal
  03/08/2026 08 AM PDT            5.01            276         +              Normal
  03/08/2026 09 AM PDT            5.00            274         -              Normal
  03/08/2026 10 AM PDT            5.00            274         0              Normal
  03/08/2026 11 AM PDT            5.00            274         0              Normal
  03/08/2026 12 PM PDT            5.00            274         0              Normal
  03/08/2026 01 PM PDT            4.97            267         -              Normal
  03/08/2026 02 PM PDT            4.96            265         -              Normal
  03/08/2026 03 PM PDT            4.96            265         0              Normal
  03/08/2026 04 PM PDT            4.95            263         -              Normal
  03/08/2026 05 PM PDT            4.95            263         0              Normal
  03/08/2026 06 PM PDT            4.94            261         -              Normal
  03/08/2026 07 PM PDT            4.93            259         -              Normal
  03/08/2026 08 PM PDT            4.95            263         +              Normal
  03/08/2026 09 PM PDT            4.95            263         0              Normal
  03/08/2026 10 PM PDT            4.95            263         0              Normal
  03/08/2026 11 PM PDT            4.95            263         0              Normal
  03/09/2026 12 AM PDT            4.95            263         0              Normal
  03/09/2026 01 AM PDT            4.94            261         -              Normal
  03/09/2026 02 AM PDT            4.95            263         +              Normal
  03/09/2026 03 AM PDT            4.94            261         -              Normal
  03/09/2026 04 AM PDT            4.96            265         +              Normal
  03/09/2026 05 AM PDT            4.95            263         -              Normal
  03/09/2026 06 AM PDT            4.93            259         -              Normal
  03/09/2026 07 AM PDT            4.96            265         +              Normal
  03/09/2026 08 AM PDT            4.95            263         -              Normal
  03/09/2026 09 AM PDT            4.95            263         0              Normal
  03/09/2026 10 AM PDT            4.94            261         -              Normal
  03/09/2026 11 AM PDT            4.94            261         0              Normal
  03/09/2026 12 PM PDT            4.93            259         -              Normal
  03/09/2026 01 PM PDT            4.93            259         0              Normal
  03/09/2026 02 PM PDT            4.92            257         -              Normal
  03/09/2026 03 PM PDT            4.93            259         +              Normal
  03/09/2026 04 PM PDT            4.92            257         -              Normal
  03/09/2026 05 PM PDT            4.92            257         0              Normal
  03/09/2026 06 PM PDT            4.92            257         0              Normal
  03/09/2026 07 PM PDT            4.92            257         0              Normal
  03/09/2026 08 PM PDT            4.91            255         -              Normal
  03/09/2026 09 PM PDT            4.92            257         +              Normal
  03/09/2026 10 PM PDT            4.92            257         0              Normal
  03/09/2026 11 PM PDT            4.93            259         +              Normal
  03/10/2026 12 AM PDT            4.93            259         0              Normal
  03/10/2026 01 AM PDT            4.93            259         0              Normal
  03/10/2026 02 AM PDT            4.93            259         0              Normal
  03/10/2026 03 AM PDT            4.92            257         -              Normal
  03/10/2026 04 AM PDT            4.94            261         +              Normal
  03/10/2026 05 AM PDT            4.93            259         -              Normal
  03/10/2026 06 AM PDT            4.94            261         +              Normal
  03/10/2026 07 AM PDT            4.93            259         -              Normal
  03/10/2026 08 AM PDT            4.93            259         0              Normal
  03/10/2026 09 AM PDT            4.93            259         0              Normal
  03/10/2026 10 AM PDT            4.93            259         0              Normal
  03/10/2026 11 AM PDT            4.92            257         -              Normal
  03/10/2026 12 PM PDT            4.92            257         0              Normal
  03/10/2026 01 PM PDT            4.91            255         -              Normal
  03/10/2026 02 PM PDT            4.91            255         0              Normal
  03/10/2026 03 PM PDT            4.91            255         0              Normal
  03/10/2026 04 PM PDT            4.92            257         +              Normal
  03/10/2026 05 PM PDT            4.91            255         -              Normal
  03/10/2026 06 PM PDT            4.91            255         0              Normal
  03/10/2026 07 PM PDT            4.90            253         -              Normal
  03/10/2026 08 PM PDT            4.91            255         +              Normal
  03/10/2026 09 PM PDT            4.91            255         0              Normal
  03/10/2026 10 PM PDT            4.90            253         -              Normal
  03/10/2026 11 PM PDT            4.91            255         +              Normal
  03/11/2026 12 AM PDT            4.91            255         0              Normal
  03/11/2026 01 AM PDT            4.91            255         0              Normal
  03/11/2026 02 AM PDT            4.91            255         0              Normal
  03/11/2026 03 AM PDT            4.91            255         0              Normal
  03/11/2026 04 AM PDT            4.91            255         0              Normal
  03/11/2026 05 AM PDT            4.92            257         +              Normal
  03/11/2026 06 AM PDT            4.91            255         -              Normal
  03/11/2026 07 AM PDT            4.92            257         +              Normal
  03/11/2026 08 AM PDT            4.92            257         0              Normal
  03/11/2026 09 AM PDT            4.92            257         0              Normal
  03/11/2026 10 AM PDT            4.91            255         -              Normal
  03/11/2026 11 AM PDT            4.89            251         -              Normal
  03/11/2026 12 PM PDT            4.88            249         -              Normal
  03/11/2026 01 PM PDT            4.86            245         -              Normal
  03/11/2026 02 PM PDT            4.86            245         0              Normal
  03/11/2026 03 PM PDT            4.86            245         0              Normal
  03/11/2026 04 PM PDT            4.85            243         -              Normal
  03/11/2026 05 PM PDT            4.85            243         0              Normal
  03/11/2026 06 PM PDT            4.85            243         0              Normal
  03/11/2026 07 PM PDT            4.85            243         0              Normal
  03/11/2026 08 PM PDT            4.85            243         0              Normal
  03/11/2026 09 PM PDT            4.83            239         -              Normal
  03/11/2026 10 PM PDT            4.84            241         +              Normal
  03/11/2026 11 PM PDT            4.85            243         +              Normal
  03/12/2026 12 AM PDT            4.84            241         -              Normal
  03/12/2026 01 AM PDT            4.84            241         0              Normal
  03/12/2026 02 AM PDT            4.83            239         -              Normal
  03/12/2026 03 AM PDT            4.83            239         0              Normal
  03/12/2026 04 AM PDT            4.82            237         -              Normal
  03/12/2026 05 AM PDT            4.82            237         0              Normal
  03/12/2026 06 AM PDT            4.81            235         -              Normal
  03/12/2026 07 AM PDT            4.83            239         +              Normal
  03/12/2026 08 AM PDT            4.83            239         0              Normal
  03/12/2026 09 AM PDT            4.82            237         -              Normal
  03/12/2026 10 AM PDT            4.81            235         -              Normal
  03/12/2026 11 AM PDT            4.83            239         +              Normal
  03/12/2026 12 PM PDT            4.82            237         -              Normal
  03/12/2026 01 PM PDT            4.82            237         0              Normal
  03/12/2026 02 PM PDT            4.83            239         +              Normal
  03/12/2026 03 PM PDT            4.84            241         +              Normal
  03/12/2026 04 PM PDT            4.83            239         -              Normal
  03/12/2026 05 PM PDT            4.83            239         0              Normal
  03/12/2026 06 PM PDT            4.84            241         +              Normal
  03/12/2026 07 PM PDT            4.83            239         -              Normal
  03/12/2026 08 PM PDT            4.84            241         +              Normal
  03/12/2026 09 PM PDT            4.83            239         -              Normal
  03/12/2026 10 PM PDT            4.83            239         0              Normal
  03/12/2026 11 PM PDT            4.82            237         -              Normal
  03/13/2026 12 AM PDT            4.83            239         +              Normal
  03/13/2026 01 AM PDT            4.83            239         0              Normal
  03/13/2026 02 AM PDT            4.85            243         +              Normal
  03/13/2026 03 AM PDT            4.83            239         -              Normal
  03/13/2026 04 AM PDT            4.84            241         +              Normal
  03/13/2026 05 AM PDT            4.83            239         -              Normal
  03/13/2026 06 AM PDT            4.83            239         0              Normal
#
# FORECAST
#
# Date & Time  (Local)    Stage (Feet)     Flow (cfs)     Trend     Forecast Status
# ---------------------------------------------------------------------------------
  03/13/2026 07 AM PDT            4.83            239                        Normal
  03/13/2026 08 AM PDT            4.83            239         0              Normal
  03/13/2026 09 AM PDT            4.83            239         0              Normal
  03/13/2026 10 AM PDT            4.83            239         0              Normal
  03/13/2026 11 AM PDT            4.83            239         0              Normal
  03/13/2026 12 PM PDT            4.83            239         0              Normal
  03/13/2026 01 PM PDT            4.83            239         0              Normal
  03/13/2026 02 PM PDT            4.83            239         0              Normal
  03/13/2026 03 PM PDT            4.83            239         0              Normal
  03/13/2026 04 PM PDT            4.82            237         -              Normal
  03/13/2026 05 PM PDT            4.82            237         0              Normal
  03/13/2026 06 PM PDT            4.82            237         0              Normal
  03/13/2026 07 PM PDT            4.82            237         0              Normal
  03/13/2026 08 PM PDT            4.82            237         0              Normal
  03/13/2026 09 PM PDT            4.82            237         0              Normal
  03/13/2026 10 PM PDT            4.82            237         0              Normal
  03/13/2026 11 PM PDT            4.82            237         0              Normal
  03/14/2026 12 AM PDT            4.82            237         0              Normal
  03/14/2026 01 AM PDT            4.82            237         0              Normal
  03/14/2026 02 AM PDT            4.82            237         0              Normal
  03/14/2026 03 AM PDT            4.82            237         0              Normal
  03/14/2026 04 AM PDT            4.82            237         0              Normal
  03/14/2026 05 AM PDT            4.82            237         0              Normal
  03/14/2026 06 AM PDT            4.82            237         0              Normal
  03/14/2026 07 AM PDT            4.82            237         0              Normal
  03/14/2026 08 AM PDT            4.82            237         0              Normal
  03/14/2026 09 AM PDT            4.82            237         0              Normal
  03/14/2026 10 AM PDT            4.82            237         0              Normal
  03/14/2026 11 AM PDT            4.82            237         0              Normal
  03/14/2026 12 PM PDT            4.82            237         0              Normal
  03/14/2026 01 PM PDT            4.82            237         0              Normal
  03/14/2026 02 PM PDT            4.82            237         0              Normal
  03/14/2026 03 PM PDT            4.82            237         0              Normal
  03/14/2026 04 PM PDT            4.82            237         0              Normal
  03/14/2026 05 PM PDT            4.82            237         0              Normal
  03/14/2026 06 PM PDT            4.82            237         0              Normal
  03/14/2026 07 PM PDT            4.82            237         0              Normal
  03/14/2026 08 PM PDT            4.82            237         0              Normal
  03/14/2026 09 PM PDT            4.82            237         0              Normal
  03/14/2026 10 PM PDT            4.82            237         0              Normal
  03/14/2026 11 PM PDT            4.82            237         0              Normal
  03/15/2026 12 AM PDT            4.82            237         0              Normal
  03/15/2026 01 AM PDT            4.82            237         0              Normal
  03/15/2026 02 AM PDT            4.82            237         0              Normal
  03/15/2026 03 AM PDT            4.82            237         0              Normal
  03/15/2026 04 AM PDT            4.82            237         0              Normal
  03/15/2026 05 AM PDT            4.82            237         0              Normal
  03/15/2026 06 AM PDT            4.82            237         0              Normal
  03/15/2026 07 AM PDT            4.82            237         0              Normal
  03/15/2026 08 AM PDT            4.82            237         0              Normal
  03/15/2026 09 AM PDT            4.82            237         0              Normal
  03/15/2026 10 AM PDT            4.82            237         0              Normal
  03/15/2026 11 AM PDT            4.82            237         0              Normal
  03/15/2026 12 PM PDT            4.82            237         0              Normal
  03/15/2026 01 PM PDT            4.82            237         0              Normal
  03/15/2026 02 PM PDT            4.82            237         0              Normal
  03/15/2026 03 PM PDT            4.82            237         0              Normal
  03/15/2026 04 PM PDT            4.83            239         +              Normal
  03/15/2026 05 PM PDT            4.83            239         0              Normal
  03/15/2026 06 PM PDT            4.82            237         -              Normal
  03/15/2026 07 PM PDT            4.82            237         0              Normal
  03/15/2026 08 PM PDT            4.82            237         0              Normal
  03/15/2026 09 PM PDT            4.83            239         +              Normal
  03/15/2026 10 PM PDT            4.83            239         0              Normal
  03/15/2026 11 PM PDT            4.83            239         0              Normal
  03/16/2026 12 AM PDT            4.83            239         0              Normal
  03/16/2026 01 AM PDT            4.83            239         0              Normal
  03/16/2026 02 AM PDT            4.83            239         0              Normal
  03/16/2026 03 AM PDT            4.83            239         0              Normal
  03/16/2026 04 AM PDT            4.83            239         0              Normal
  03/16/2026 05 AM PDT            4.83            239         0              Normal
  03/16/2026 06 AM PDT            4.83            239         0              Normal
  03/16/2026 07 AM PDT            4.83            239         0              Normal
  03/16/2026 08 AM PDT            4.83            239         0              Normal
  03/16/2026 09 AM PDT            4.83            239         0              Normal
  03/16/2026 10 AM PDT            4.83            239         0              Normal
  03/16/2026 11 AM PDT            4.83            239         0              Normal
  03/16/2026 12 PM PDT            4.83            239         0              Normal
  03/16/2026 01 PM PDT            4.83            239         0              Normal
  03/16/2026 02 PM PDT            4.83            239         0              Normal
  03/16/2026 03 PM PDT            4.83            239         0              Normal
  03/16/2026 04 PM PDT            4.83            239         0              Normal
  03/16/2026 05 PM PDT            4.83            239         0              Normal
  03/16/2026 06 PM PDT            4.83            239         0              Normal
  03/16/2026 07 PM PDT            4.83            239         0              Normal
  03/16/2026 08 PM PDT            4.83            239         0              Normal
  03/16/2026 09 PM PDT            4.83            239         0              Normal
  03/16/2026 10 PM PDT            4.83            239         0              Normal
  03/16/2026 11 PM PDT            4.83            239         0              Normal
  03/17/2026 12 AM PDT            4.83            239         0              Normal
  03/17/2026 01 AM PDT            4.83            239         0              Normal
  03/17/2026 02 AM PDT            4.83            239         0              Normal
  03/17/2026 03 AM PDT            4.83            239         0              Normal
  03/17/2026 04 AM PDT            4.83            239         0              Normal
  03/17/2026 05 AM PDT            4.83            239         0              Normal
  03/17/2026 06 AM PDT            4.83            239         0              Normal
  03/17/2026 07 AM PDT            4.83            239         0              Normal
  03/17/2026 08 AM PDT            4.83            239         0              Normal
  03/17/2026 09 AM PDT            4.83            239         0              Normal
  03/17/2026 10 AM PDT            4.83            239         0              Normal
  03/17/2026 11 AM PDT            4.83            239         0              Normal
  03/17/2026 12 PM PDT            4.83            239         0              Normal
  03/17/2026 01 PM PDT            4.83            239         0              Normal
  03/17/2026 02 PM PDT            4.83            239         0              Normal
  03/17/2026 03 PM PDT            4.83            239         0              Normal
  03/17/2026 04 PM PDT            4.84            241         +              Normal
  03/17/2026 05 PM PDT            4.84            241         0              Normal
  03/17/2026 06 PM PDT            4.84            241         0              Normal
  03/17/2026 07 PM PDT            4.84            241         0              Normal
  03/17/2026 08 PM PDT            4.84            241         0              Normal
  03/17/2026 09 PM PDT            4.84            241         0              Normal
  03/17/2026 10 PM PDT            4.84            241         0              Normal
  03/17/2026 11 PM PDT            4.84            241         0              Normal
  03/18/2026 12 AM PDT            4.84            241         0              Normal
  03/18/2026 01 AM PDT            4.84            241         0              Normal
  03/18/2026 02 AM PDT            4.85            243         +              Normal
  03/18/2026 03 AM PDT            4.85            243         0              Normal
  03/18/2026 04 AM PDT            4.85            243         0              Normal
  03/18/2026 05 AM PDT            4.85            243         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.