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 Feet
Location: Lyon County in NevadaRiver Group: Eastern Sierra
Issuance Time: Feb 04 2023 at 9:28 AM PSTNext Issuance: Feb 05 2023 at 9:00 AM PST
Monitor Stage: 9.0 FeetFlood Stage: 9.8 Feet

SPECIAL NOTE:Significant losses can occur in the Mason Valley upstream of the Mason stream gage. Increased forecast uncertainty exists in the long range forecast due to these unknown losses.

# Tabular Observed and Forecast Hydrograph Information
#
# Location: Walker River - Mason at Snyder Lane (MASN2)
#
# File Generation Time:  02/04/2023 at 09:28 AM PST
# Data Interval:  1 Hour
#
# Most Recent Date & Time of Maximum Observed:  02/02/2023 at 07:00 PM PST
# Maximum Observed Stage:                       4.3 Feet
# Maximum Observed Flow:                        89 cfs
#
# Earliest Date & Time of Maximum Forecast:     02/04/2023 at 10:00 AM PST
# Maximum Forecast Stage:                       4.2 Feet
# Maximum Forecast Flow:                        75 cfs
#
# OBSERVED
#
# Date & Time  (Local)    Stage (Feet)     Flow (cfs)     Trend     Observed Status
# ---------------------------------------------------------------------------------
  01/30/2023 09 AM PST             4.2             74                        Normal
  01/30/2023 10 AM PST             4.2             74         0              Normal
  01/30/2023 11 AM PST             4.2             74         0              Normal
  01/30/2023 12 PM PST             4.2             74         0              Normal
  01/30/2023 01 PM PST             4.2             75         +              Normal
  01/30/2023 02 PM PST             4.2             75         0              Normal
  01/30/2023 03 PM PST             4.2             75         0              Normal
  01/30/2023 04 PM PST             4.2             74         -              Normal
  01/30/2023 05 PM PST             4.2             74         0              Normal
  01/30/2023 06 PM PST             4.2             74         0              Normal
  01/30/2023 07 PM PST             4.2             74         0              Normal
  01/30/2023 08 PM PST             4.2             74         0              Normal
  01/30/2023 09 PM PST             4.2             74         0              Normal
  01/30/2023 10 PM PST             4.2             73         -              Normal
  01/30/2023 11 PM PST             4.2             73         0              Normal
  01/31/2023 12 AM PST             4.2             71         -              Normal
  01/31/2023 01 AM PST             4.2             71         0              Normal
  01/31/2023 02 AM PST             4.2             73         +              Normal
  01/31/2023 03 AM PST             4.2             73         0              Normal
  01/31/2023 04 AM PST             4.2             73         0              Normal
  01/31/2023 05 AM PST             4.2             73         0              Normal
  01/31/2023 06 AM PST             4.2             73         0              Normal
  01/31/2023 07 AM PST             4.2             73         0              Normal
  01/31/2023 08 AM PST             4.2             73         0              Normal
  01/31/2023 09 AM PST             4.2             73         0              Normal
  01/31/2023 10 AM PST             4.2             73         0              Normal
  01/31/2023 11 AM PST             4.2             73         0              Normal
  01/31/2023 12 PM PST             4.2             73         0              Normal
  01/31/2023 01 PM PST             4.2             73         0              Normal
  01/31/2023 02 PM PST             4.2             73         0              Normal
  01/31/2023 03 PM PST             4.2             73         0              Normal
  01/31/2023 04 PM PST             4.2             73         0              Normal
  01/31/2023 05 PM PST             4.2             73         0              Normal
  01/31/2023 06 PM PST             4.2             73         0              Normal
  01/31/2023 07 PM PST             4.2             73         0              Normal
  01/31/2023 08 PM PST             4.2             73         0              Normal
  01/31/2023 09 PM PST             4.2             73         0              Normal
  01/31/2023 10 PM PST             4.2             73         0              Normal
  01/31/2023 11 PM PST             4.2             73         0              Normal
  02/01/2023 12 AM PST             4.2             73         0              Normal
  02/01/2023 01 AM PST             4.2             73         0              Normal
  02/01/2023 02 AM PST             4.2             71         -              Normal
  02/01/2023 03 AM PST             4.2             71         0              Normal
  02/01/2023 04 AM PST             4.2             71         0              Normal
  02/01/2023 05 AM PST             4.2             71         0              Normal
  02/01/2023 06 AM PST             4.2             71         0              Normal
  02/01/2023 07 AM PST             4.2             71         0              Normal
  02/01/2023 08 AM PST             4.2             71         0              Normal
  02/01/2023 09 AM PST             4.2             71         0              Normal
  02/01/2023 10 AM PST             4.2             71         0              Normal
  02/01/2023 11 AM PST             4.2             71         0              Normal
  02/01/2023 12 PM PST             4.2             71         0              Normal
  02/01/2023 01 PM PST             4.2             73         +              Normal
  02/01/2023 02 PM PST             4.2             73         0              Normal
  02/01/2023 03 PM PST             4.2             73         0              Normal
  02/01/2023 04 PM PST             4.2             73         0              Normal
  02/01/2023 05 PM PST             4.2             73         0              Normal
  02/01/2023 06 PM PST             4.2             73         0              Normal
  02/01/2023 07 PM PST             4.2             73         0              Normal
  02/01/2023 08 PM PST             4.2             73         0              Normal
  02/01/2023 09 PM PST             4.2             73         0              Normal
  02/01/2023 10 PM PST             4.2             73         0              Normal
  02/01/2023 11 PM PST             4.2             71         -              Normal
  02/02/2023 12 AM PST             4.2             71         0              Normal
  02/02/2023 01 AM PST             4.2             71         0              Normal
  02/02/2023 02 AM PST             4.2             70         -              Normal
  02/02/2023 03 AM PST             4.2             70         0              Normal
  02/02/2023 04 AM PST             4.2             70         0              Normal
  02/02/2023 05 AM PST             4.2             70         0              Normal
  02/02/2023 06 AM PST             4.2             70         0              Normal
  02/02/2023 07 AM PST             4.2             70         0              Normal
  02/02/2023 08 AM PST             4.2             70         0              Normal
  02/02/2023 09 AM PST             4.2             70         0              Normal
  02/02/2023 10 AM PST             4.2             70         0              Normal
  02/02/2023 11 AM PST             4.2             70         0              Normal
  02/02/2023 12 PM PST             4.2             70         0              Normal
  02/02/2023 01 PM PST             4.2             70         0              Normal
  02/02/2023 02 PM PST             4.2             84         +              Normal
  02/02/2023 03 PM PST             4.3             85         +              Normal
  02/02/2023 04 PM PST             4.2             80         -              Normal
  02/02/2023 05 PM PST             4.2             78         -              Normal
  02/02/2023 06 PM PST             4.3             87         +              Normal
  02/02/2023 07 PM PST             4.3             89         +              Normal
  02/02/2023 08 PM PST             4.3             87         -              Normal
  02/02/2023 09 PM PST             4.2             84         -              Normal
  02/02/2023 10 PM PST             4.2             82         -              Normal
  02/02/2023 11 PM PST             4.2             81         -              Normal
  02/03/2023 12 AM PST             4.2             80         -              Normal
  02/03/2023 01 AM PST             4.2             78         -              Normal
  02/03/2023 02 AM PST             4.2             78         0              Normal
  02/03/2023 03 AM PST             4.2             80         +              Normal
  02/03/2023 04 AM PST             4.2             80         0              Normal
  02/03/2023 05 AM PST             4.2             80         0              Normal
  02/03/2023 06 AM PST             4.2             82         +              Normal
  02/03/2023 07 AM PST             4.2             84         +              Normal
  02/03/2023 08 AM PST             4.3             85         +              Normal
  02/03/2023 09 AM PST             4.3             85         0              Normal
  02/03/2023 10 AM PST             4.2             84         -              Normal
  02/03/2023 11 AM PST             4.2             81         -              Normal
  02/03/2023 12 PM PST             4.2             80         -              Normal
  02/03/2023 01 PM PST             4.2             80         0              Normal
  02/03/2023 02 PM PST             4.2             80         0              Normal
  02/03/2023 03 PM PST             4.2             81         +              Normal
  02/03/2023 04 PM PST             4.3             85         +              Normal
  02/03/2023 05 PM PST             4.3             88         +              Normal
  02/03/2023 06 PM PST             4.3             87         -              Normal
  02/03/2023 07 PM PST             4.2             84         -              Normal
  02/03/2023 08 PM PST             4.2             82         -              Normal
  02/03/2023 09 PM PST             4.2             81         -              Normal
  02/03/2023 10 PM PST             4.2             80         -              Normal
  02/03/2023 11 PM PST             4.2             82         +              Normal
  02/04/2023 12 AM PST             4.3             85         +              Normal
  02/04/2023 01 AM PST             4.3             85         0              Normal
  02/04/2023 02 AM PST             4.2             82         -              Normal
  02/04/2023 03 AM PST             4.2             80         -              Normal
  02/04/2023 04 AM PST             4.2             80         0              Normal
  02/04/2023 05 AM PST             4.2             78         -              Normal
  02/04/2023 06 AM PST             4.2             77         -              Normal
  02/04/2023 07 AM PST             4.2             77         0              Normal
  02/04/2023 08 AM PST             4.2             77         0              Normal
  02/04/2023 09 AM PST             4.2             77         0              Normal
#
# FORECAST
#
# Date & Time  (Local)    Stage (Feet)     Flow (cfs)     Trend     Forecast Status
# ---------------------------------------------------------------------------------
  02/04/2023 10 AM PST             4.2             75                        Normal
  02/04/2023 11 AM PST             4.2             74         -              Normal
  02/04/2023 12 PM PST             4.2             74         0              Normal
  02/04/2023 01 PM PST             4.2             73         -              Normal
  02/04/2023 02 PM PST             4.2             73         0              Normal
  02/04/2023 03 PM PST             4.2             73         0              Normal
  02/04/2023 04 PM PST             4.2             71         -              Normal
  02/04/2023 05 PM PST             4.2             71         0              Normal
  02/04/2023 06 PM PST             4.2             71         0              Normal
  02/04/2023 07 PM PST             4.2             71         0              Normal
  02/04/2023 08 PM PST             4.2             71         0              Normal
  02/04/2023 09 PM PST             4.2             71         0              Normal
  02/04/2023 10 PM PST             4.2             71         0              Normal
  02/04/2023 11 PM PST             4.2             70         -              Normal
  02/05/2023 12 AM PST             4.2             70         0              Normal
  02/05/2023 01 AM PST             4.2             70         0              Normal
  02/05/2023 02 AM PST             4.2             70         0              Normal
  02/05/2023 03 AM PST             4.2             71         +              Normal
  02/05/2023 04 AM PST             4.2             71         0              Normal
  02/05/2023 05 AM PST             4.2             71         0              Normal
  02/05/2023 06 AM PST             4.2             71         0              Normal
  02/05/2023 07 AM PST             4.2             71         0              Normal
  02/05/2023 08 AM PST             4.2             71         0              Normal
  02/05/2023 09 AM PST             4.2             71         0              Normal
  02/05/2023 10 AM PST             4.2             71         0              Normal
  02/05/2023 11 AM PST             4.2             71         0              Normal
  02/05/2023 12 PM PST             4.2             71         0              Normal
  02/05/2023 01 PM PST             4.2             71         0              Normal
  02/05/2023 02 PM PST             4.2             73         +              Normal
  02/05/2023 03 PM PST             4.2             73         0              Normal
  02/05/2023 04 PM PST             4.2             73         0              Normal
  02/05/2023 05 PM PST             4.2             73         0              Normal
  02/05/2023 06 PM PST             4.2             73         0              Normal
  02/05/2023 07 PM PST             4.2             73         0              Normal
  02/05/2023 08 PM PST             4.2             73         0              Normal
  02/05/2023 09 PM PST             4.2             73         0              Normal
  02/05/2023 10 PM PST             4.2             73         0              Normal
  02/05/2023 11 PM PST             4.2             73         0              Normal
  02/06/2023 12 AM PST             4.2             73         0              Normal
  02/06/2023 01 AM PST             4.2             73         0              Normal
  02/06/2023 02 AM PST             4.2             73         0              Normal
  02/06/2023 03 AM PST             4.2             73         0              Normal
  02/06/2023 04 AM PST             4.2             73         0              Normal
  02/06/2023 05 AM PST             4.2             73         0              Normal
  02/06/2023 06 AM PST             4.2             73         0              Normal
  02/06/2023 07 AM PST             4.2             73         0              Normal
  02/06/2023 08 AM PST             4.2             73         0              Normal
  02/06/2023 09 AM PST             4.2             71         -              Normal
  02/06/2023 10 AM PST             4.2             71         0              Normal
  02/06/2023 11 AM PST             4.2             71         0              Normal
  02/06/2023 12 PM PST             4.2             71         0              Normal
  02/06/2023 01 PM PST             4.2             71         0              Normal
  02/06/2023 02 PM PST             4.2             71         0              Normal
  02/06/2023 03 PM PST             4.2             71         0              Normal
  02/06/2023 04 PM PST             4.2             70         -              Normal
  02/06/2023 05 PM PST             4.2             70         0              Normal
  02/06/2023 06 PM PST             4.2             70         0              Normal
  02/06/2023 07 PM PST             4.2             70         0              Normal
  02/06/2023 08 PM PST             4.2             70         0              Normal
  02/06/2023 09 PM PST             4.2             70         0              Normal
  02/06/2023 10 PM PST             4.1             69         -              Normal
  02/06/2023 11 PM PST             4.1             69         0              Normal
  02/07/2023 12 AM PST             4.1             69         0              Normal
  02/07/2023 01 AM PST             4.1             69         0              Normal
  02/07/2023 02 AM PST             4.1             69         0              Normal
  02/07/2023 03 AM PST             4.1             69         0              Normal
  02/07/2023 04 AM PST             4.1             68         -              Normal
  02/07/2023 05 AM PST             4.1             68         0              Normal
  02/07/2023 06 AM PST             4.1             68         0              Normal
  02/07/2023 07 AM PST             4.1             68         0              Normal
  02/07/2023 08 AM PST             4.1             68         0              Normal
  02/07/2023 09 AM PST             4.1             68         0              Normal
  02/07/2023 10 AM PST             4.1             68         0              Normal
  02/07/2023 11 AM PST             4.1             66         -              Normal
  02/07/2023 12 PM PST             4.1             66         0              Normal
  02/07/2023 01 PM PST             4.1             66         0              Normal
  02/07/2023 02 PM PST             4.1             66         0              Normal
  02/07/2023 03 PM PST             4.1             66         0              Normal
  02/07/2023 04 PM PST             4.1             66         0              Normal
  02/07/2023 05 PM PST             4.1             66         0              Normal
  02/07/2023 06 PM PST             4.1             66         0              Normal
  02/07/2023 07 PM PST             4.1             66         0              Normal
  02/07/2023 08 PM PST             4.1             65         -              Normal
  02/07/2023 09 PM PST             4.1             65         0              Normal
  02/07/2023 10 PM PST             4.1             65         0              Normal
  02/07/2023 11 PM PST             4.1             65         0              Normal
  02/08/2023 12 AM PST             4.1             65         0              Normal
  02/08/2023 01 AM PST             4.1             65         0              Normal
  02/08/2023 02 AM PST             4.1             65         0              Normal
  02/08/2023 03 AM PST             4.1             65         0              Normal
  02/08/2023 04 AM PST             4.1             65         0              Normal
  02/08/2023 05 AM PST             4.1             65         0              Normal
  02/08/2023 06 AM PST             4.1             65         0              Normal
  02/08/2023 07 AM PST             4.1             65         0              Normal
  02/08/2023 08 AM PST             4.1             65         0              Normal
  02/08/2023 09 AM PST             4.1             65         0              Normal
  02/08/2023 10 AM PST             4.1             64         -              Normal
  02/08/2023 11 AM PST             4.1             64         0              Normal
  02/08/2023 12 PM PST             4.1             64         0              Normal
  02/08/2023 01 PM PST             4.1             64         0              Normal
  02/08/2023 02 PM PST             4.1             64         0              Normal
  02/08/2023 03 PM PST             4.1             64         0              Normal
  02/08/2023 04 PM PST             4.1             64         0              Normal
  02/08/2023 05 PM PST             4.1             64         0              Normal
  02/08/2023 06 PM PST             4.1             64         0              Normal
  02/08/2023 07 PM PST             4.1             64         0              Normal
  02/08/2023 08 PM PST             4.1             64         0              Normal
  02/08/2023 09 PM PST             4.1             64         0              Normal
  02/08/2023 10 PM PST             4.1             64         0              Normal
  02/08/2023 11 PM PST             4.1             64         0              Normal
  02/09/2023 12 AM PST             4.1             64         0              Normal
  02/09/2023 01 AM PST             4.1             64         0              Normal
  02/09/2023 02 AM PST             4.1             64         0              Normal
  02/09/2023 03 AM PST             4.1             62         -              Normal
  02/09/2023 04 AM PST             4.1             62         0              Normal
#
# NOTE 1: Stages are rounded to the nearest tenth (.1) 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.