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: Mar 05 2021 at 8:01 AM PSTNext Issuance: Mar 05 2021 at 3:00 PM 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:  03/05/2021 at 08:01 AM PST
# Data Interval:  1 Hour
#
# Most Recent Date & Time of Maximum Observed:  03/05/2021 at 07:00 AM PST
# Maximum Observed Stage:                       4.4 Feet
# Maximum Observed Flow:                        78 cfs
#
# Earliest Date & Time of Maximum Forecast:     03/06/2021 at 03:00 PM PST
# Maximum Forecast Stage:                       4.5 Feet
# Maximum Forecast Flow:                        91 cfs
#
# OBSERVED
#
# Date & Time  (Local)    Stage (Feet)     Flow (cfs)     Trend     Observed Status
# ---------------------------------------------------------------------------------
  02/28/2021 08 AM PST             4.2             55                        Normal
  02/28/2021 09 AM PST             4.2             55         0              Normal
  02/28/2021 10 AM PST             4.2             55         0              Normal
  02/28/2021 11 AM PST             4.2             55         0              Normal
  02/28/2021 12 PM PST             4.2             55         0              Normal
  02/28/2021 01 PM PST             4.2             55         0              Normal
  02/28/2021 02 PM PST             4.2             55         0              Normal
  02/28/2021 03 PM PST             4.2             50         -              Normal
  02/28/2021 04 PM PST             4.2             48         -              Normal
  02/28/2021 05 PM PST             4.2             50         +              Normal
  02/28/2021 06 PM PST             4.2             59         +              Normal
  02/28/2021 07 PM PST             4.3             64         +              Normal
  02/28/2021 08 PM PST             4.2             60         -              Normal
  02/28/2021 09 PM PST             4.2             59         -              Normal
  02/28/2021 10 PM PST             4.2             58         -              Normal
  02/28/2021 11 PM PST             4.2             56         -              Normal
  03/01/2021 12 AM PST             4.2             58         +              Normal
  03/01/2021 01 AM PST             4.2             58         0              Normal
  03/01/2021 02 AM PST             4.2             58         0              Normal
  03/01/2021 03 AM PST             4.2             58         0              Normal
  03/01/2021 04 AM PST             4.2             58         0              Normal
  03/01/2021 05 AM PST             4.2             58         0              Normal
  03/01/2021 06 AM PST             4.2             59         +              Normal
  03/01/2021 07 AM PST             4.2             59         0              Normal
  03/01/2021 08 AM PST             4.2             58         -              Normal
  03/01/2021 09 AM PST             4.2             58         0              Normal
  03/01/2021 10 AM PST             4.2             58         0              Normal
  03/01/2021 11 AM PST             4.2             59         +              Normal
  03/01/2021 12 PM PST             4.2             56         -              Normal
  03/01/2021 01 PM PST             4.2             50         -              Normal
  03/01/2021 02 PM PST             4.1             46         -              Normal
  03/01/2021 03 PM PST             4.1             44         -              Normal
  03/01/2021 04 PM PST             4.1             44         0              Normal
  03/01/2021 05 PM PST             4.1             46         +              Normal
  03/01/2021 06 PM PST             4.2             49         +              Normal
  03/01/2021 07 PM PST             4.2             52         +              Normal
  03/01/2021 08 PM PST             4.2             53         +              Normal
  03/01/2021 09 PM PST             4.2             53         0              Normal
  03/01/2021 10 PM PST             4.2             53         0              Normal
  03/01/2021 11 PM PST             4.2             53         0              Normal
  03/02/2021 12 AM PST             4.2             53         0              Normal
  03/02/2021 01 AM PST             4.2             53         0              Normal
  03/02/2021 02 AM PST             4.2             53         0              Normal
  03/02/2021 03 AM PST             4.2             53         0              Normal
  03/02/2021 04 AM PST             4.2             52         -              Normal
  03/02/2021 05 AM PST             4.2             53         +              Normal
  03/02/2021 06 AM PST             4.2             53         0              Normal
  03/02/2021 07 AM PST             4.2             52         -              Normal
  03/02/2021 08 AM PST             4.2             53         +              Normal
  03/02/2021 09 AM PST             4.2             53         0              Normal
  03/02/2021 10 AM PST             4.2             52         -              Normal
  03/02/2021 11 AM PST             4.2             52         0              Normal
  03/02/2021 12 PM PST             4.2             52         0              Normal
  03/02/2021 01 PM PST             4.2             53         +              Normal
  03/02/2021 02 PM PST             4.2             53         0              Normal
  03/02/2021 03 PM PST             4.2             53         0              Normal
  03/02/2021 04 PM PST             4.2             54         +              Normal
  03/02/2021 05 PM PST             4.2             54         0              Normal
  03/02/2021 06 PM PST             4.2             54         0              Normal
  03/02/2021 07 PM PST             4.2             54         0              Normal
  03/02/2021 08 PM PST             4.2             52         -              Normal
  03/02/2021 09 PM PST             4.2             49         -              Normal
  03/02/2021 10 PM PST             4.2             50         +              Normal
  03/02/2021 11 PM PST             4.2             53         +              Normal
  03/03/2021 12 AM PST             4.2             54         +              Normal
  03/03/2021 01 AM PST             4.2             54         0              Normal
  03/03/2021 02 AM PST             4.2             54         0              Normal
  03/03/2021 03 AM PST             4.2             54         0              Normal
  03/03/2021 04 AM PST             4.2             54         0              Normal
  03/03/2021 05 AM PST             4.2             54         0              Normal
  03/03/2021 06 AM PST             4.2             53         -              Normal
  03/03/2021 07 AM PST             4.2             53         0              Normal
  03/03/2021 08 AM PST             4.2             53         0              Normal
  03/03/2021 09 AM PST             4.2             54         +              Normal
  03/03/2021 10 AM PST             4.2             54         0              Normal
  03/03/2021 11 AM PST             4.2             55         +              Normal
  03/03/2021 12 PM PST             4.2             55         0              Normal
  03/03/2021 01 PM PST             4.2             55         0              Normal
  03/03/2021 02 PM PST             4.2             55         0              Normal
  03/03/2021 03 PM PST             4.2             54         -              Normal
  03/03/2021 04 PM PST             4.2             54         0              Normal
  03/03/2021 05 PM PST             4.2             54         0              Normal
  03/03/2021 06 PM PST             4.2             54         0              Normal
  03/03/2021 07 PM PST             4.2             54         0              Normal
  03/03/2021 08 PM PST             4.2             55         +              Normal
  03/03/2021 09 PM PST             4.2             55         0              Normal
  03/03/2021 10 PM PST             4.2             56         +              Normal
  03/03/2021 11 PM PST             4.3             61         +              Normal
  03/04/2021 12 AM PST             4.3             66         +              Normal
  03/04/2021 01 AM PST             4.3             69         +              Normal
  03/04/2021 02 AM PST             4.3             70         +              Normal
  03/04/2021 03 AM PST             4.3             73         +              Normal
  03/04/2021 04 AM PST             4.3             73         0              Normal
  03/04/2021 05 AM PST             4.4             74         +              Normal
  03/04/2021 06 AM PST             4.4             74         0              Normal
  03/04/2021 07 AM PST             4.4             74         0              Normal
  03/04/2021 08 AM PST             4.4             76         +              Normal
  03/04/2021 09 AM PST             4.4             77         +              Normal
  03/04/2021 10 AM PST             4.4             77         0              Normal
  03/04/2021 11 AM PST             4.4             76         -              Normal
  03/04/2021 12 PM PST             4.3             73         -              Normal
  03/04/2021 01 PM PST             4.3             70         -              Normal
  03/04/2021 02 PM PST             4.3             70         0              Normal
  03/04/2021 03 PM PST             4.3             70         0              Normal
  03/04/2021 04 PM PST             4.3             70         0              Normal
  03/04/2021 05 PM PST             4.3             70         0              Normal
  03/04/2021 06 PM PST             4.3             72         +              Normal
  03/04/2021 07 PM PST             4.3             72         0              Normal
  03/04/2021 08 PM PST             4.3             73         +              Normal
  03/04/2021 09 PM PST             4.4             74         +              Normal
  03/04/2021 10 PM PST             4.4             74         0              Normal
  03/04/2021 11 PM PST             4.4             76         +              Normal
  03/05/2021 12 AM PST             4.4             77         +              Normal
  03/05/2021 01 AM PST             4.4             77         0              Normal
  03/05/2021 02 AM PST             4.4             77         0              Normal
  03/05/2021 03 AM PST             4.4             77         0              Normal
  03/05/2021 04 AM PST             4.4             77         0              Normal
  03/05/2021 05 AM PST             4.4             78         +              Normal
  03/05/2021 06 AM PST             4.4             78         0              Normal
  03/05/2021 07 AM PST             4.4             78         0              Normal
#
# FORECAST
#
# Date & Time  (Local)    Stage (Feet)     Flow (cfs)     Trend     Forecast Status
# ---------------------------------------------------------------------------------
  03/05/2021 08 AM PST             4.4             80                        Normal
  03/05/2021 09 AM PST             4.4             80         0              Normal
  03/05/2021 10 AM PST             4.4             80         0              Normal
  03/05/2021 11 AM PST             4.4             81         +              Normal
  03/05/2021 12 PM PST             4.4             81         0              Normal
  03/05/2021 01 PM PST             4.4             81         0              Normal
  03/05/2021 02 PM PST             4.4             81         0              Normal
  03/05/2021 03 PM PST             4.4             81         0              Normal
  03/05/2021 04 PM PST             4.4             81         0              Normal
  03/05/2021 05 PM PST             4.4             81         0              Normal
  03/05/2021 06 PM PST             4.4             81         0              Normal
  03/05/2021 07 PM PST             4.4             81         0              Normal
  03/05/2021 08 PM PST             4.4             81         0              Normal
  03/05/2021 09 PM PST             4.4             83         +              Normal
  03/05/2021 10 PM PST             4.4             83         0              Normal
  03/05/2021 11 PM PST             4.4             83         0              Normal
  03/06/2021 12 AM PST             4.4             83         0              Normal
  03/06/2021 01 AM PST             4.4             84         +              Normal
  03/06/2021 02 AM PST             4.4             84         0              Normal
  03/06/2021 03 AM PST             4.4             84         0              Normal
  03/06/2021 04 AM PST             4.4             85         +              Normal
  03/06/2021 05 AM PST             4.4             85         0              Normal
  03/06/2021 06 AM PST             4.5             87         +              Normal
  03/06/2021 07 AM PST             4.5             87         0              Normal
  03/06/2021 08 AM PST             4.5             88         +              Normal
  03/06/2021 09 AM PST             4.5             88         0              Normal
  03/06/2021 10 AM PST             4.5             90         +              Normal
  03/06/2021 11 AM PST             4.5             90         0              Normal
  03/06/2021 12 PM PST             4.5             90         0              Normal
  03/06/2021 01 PM PST             4.5             90         0              Normal
  03/06/2021 02 PM PST             4.5             90         0              Normal
  03/06/2021 03 PM PST             4.5             91         +              Normal
  03/06/2021 04 PM PST             4.5             91         0              Normal
  03/06/2021 05 PM PST             4.5             91         0              Normal
  03/06/2021 06 PM PST             4.5             91         0              Normal
  03/06/2021 07 PM PST             4.5             91         0              Normal
  03/06/2021 08 PM PST             4.5             91         0              Normal
  03/06/2021 09 PM PST             4.5             91         0              Normal
  03/06/2021 10 PM PST             4.5             91         0              Normal
  03/06/2021 11 PM PST             4.5             91         0              Normal
  03/07/2021 12 AM PST             4.5             91         0              Normal
  03/07/2021 01 AM PST             4.5             91         0              Normal
  03/07/2021 02 AM PST             4.5             91         0              Normal
  03/07/2021 03 AM PST             4.5             91         0              Normal
  03/07/2021 04 AM PST             4.5             91         0              Normal
  03/07/2021 05 AM PST             4.5             91         0              Normal
  03/07/2021 06 AM PST             4.5             91         0              Normal
  03/07/2021 07 AM PST             4.5             91         0              Normal
  03/07/2021 08 AM PST             4.5             91         0              Normal
  03/07/2021 09 AM PST             4.5             91         0              Normal
  03/07/2021 10 AM PST             4.5             91         0              Normal
  03/07/2021 11 AM PST             4.5             91         0              Normal
  03/07/2021 12 PM PST             4.5             91         0              Normal
  03/07/2021 01 PM PST             4.5             91         0              Normal
  03/07/2021 02 PM PST             4.5             91         0              Normal
  03/07/2021 03 PM PST             4.5             91         0              Normal
  03/07/2021 04 PM PST             4.5             91         0              Normal
  03/07/2021 05 PM PST             4.5             91         0              Normal
  03/07/2021 06 PM PST             4.5             91         0              Normal
  03/07/2021 07 PM PST             4.5             91         0              Normal
  03/07/2021 08 PM PST             4.5             91         0              Normal
  03/07/2021 09 PM PST             4.5             91         0              Normal
  03/07/2021 10 PM PST             4.5             91         0              Normal
  03/07/2021 11 PM PST             4.5             91         0              Normal
  03/08/2021 12 AM PST             4.5             91         0              Normal
  03/08/2021 01 AM PST             4.5             91         0              Normal
  03/08/2021 02 AM PST             4.5             91         0              Normal
  03/08/2021 03 AM PST             4.5             91         0              Normal
  03/08/2021 04 AM PST             4.5             91         0              Normal
  03/08/2021 05 AM PST             4.5             91         0              Normal
  03/08/2021 06 AM PST             4.5             91         0              Normal
  03/08/2021 07 AM PST             4.5             91         0              Normal
  03/08/2021 08 AM PST             4.5             91         0              Normal
  03/08/2021 09 AM PST             4.5             91         0              Normal
  03/08/2021 10 AM PST             4.5             91         0              Normal
  03/08/2021 11 AM PST             4.5             91         0              Normal
  03/08/2021 12 PM PST             4.5             91         0              Normal
  03/08/2021 01 PM PST             4.5             91         0              Normal
  03/08/2021 02 PM PST             4.5             91         0              Normal
  03/08/2021 03 PM PST             4.5             91         0              Normal
  03/08/2021 04 PM PST             4.5             91         0              Normal
  03/08/2021 05 PM PST             4.5             91         0              Normal
  03/08/2021 06 PM PST             4.5             91         0              Normal
  03/08/2021 07 PM PST             4.5             91         0              Normal
  03/08/2021 08 PM PST             4.5             91         0              Normal
  03/08/2021 09 PM PST             4.5             91         0              Normal
  03/08/2021 10 PM PST             4.5             91         0              Normal
  03/08/2021 11 PM PST             4.5             91         0              Normal
  03/09/2021 12 AM PST             4.5             91         0              Normal
  03/09/2021 01 AM PST             4.5             91         0              Normal
  03/09/2021 02 AM PST             4.5             91         0              Normal
  03/09/2021 03 AM PST             4.5             91         0              Normal
  03/09/2021 04 AM PST             4.5             91         0              Normal
  03/09/2021 05 AM PST             4.5             91         0              Normal
  03/09/2021 06 AM PST             4.5             91         0              Normal
  03/09/2021 07 AM PST             4.5             91         0              Normal
  03/09/2021 08 AM PST             4.5             91         0              Normal
  03/09/2021 09 AM PST             4.5             91         0              Normal
  03/09/2021 10 AM PST             4.5             91         0              Normal
  03/09/2021 11 AM PST             4.5             91         0              Normal
  03/09/2021 12 PM PST             4.5             91         0              Normal
  03/09/2021 01 PM PST             4.5             91         0              Normal
  03/09/2021 02 PM PST             4.5             91         0              Normal
  03/09/2021 03 PM PST             4.5             91         0              Normal
  03/09/2021 04 PM PST             4.5             91         0              Normal
  03/09/2021 05 PM PST             4.5             91         0              Normal
  03/09/2021 06 PM PST             4.5             91         0              Normal
  03/09/2021 07 PM PST             4.5             90         -              Normal
  03/09/2021 08 PM PST             4.5             90         0              Normal
  03/09/2021 09 PM PST             4.5             90         0              Normal
  03/09/2021 10 PM PST             4.5             90         0              Normal
  03/09/2021 11 PM PST             4.5             90         0              Normal
  03/10/2021 12 AM PST             4.5             90         0              Normal
  03/10/2021 01 AM PST             4.5             90         0              Normal
  03/10/2021 02 AM PST             4.5             90         0              Normal
  03/10/2021 03 AM PST             4.5             90         0              Normal
  03/10/2021 04 AM PST             4.5             90         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.