WALKER RIVER - MASON AT SNYDER LANE (MASN2)
Latitude: 38.92º NLongitude: 119.19º WElevation: 4420 Feet
Location: Lyon County in NevadaBulletin Group: Eastern SierraRiver Group: Eastern Sierra
Issuance Time: Dec 25 2025 at 2:19 PM PSTNext Issuance: Dec 26 2025 at 9:00 AM PST
Action/Monitor: 9.0 FeetMinor Flood: 9.8 FeetModerate Flood: 11.0 FeetMajor Flood: 11.6 Feet

SPECIAL NOTE:

# Tabular Observed and Forecast Hydrograph Information
#
# Location: Walker River - Mason at Snyder Lane (MASN2)
#
# File Generation Time:  12/25/2025 at 02:19 PM PST
# Data Interval:  1 Hour
#
# Most Recent Date & Time of Maximum Observed:  12/25/2025 at 01:00 PM PST
# Maximum Observed Stage:                       3.60 Feet
# Maximum Observed Flow:                        62 cfs
#
# Earliest Date & Time of Maximum Forecast:     12/26/2025 at 01:00 PM PST
# Maximum Forecast Stage:                       3.83 Feet
# Maximum Forecast Flow:                        94 cfs
#
# OBSERVED
#
# Date & Time  (Local)    Stage (Feet)     Flow (cfs)     Trend     Observed Status
# ---------------------------------------------------------------------------------
  12/20/2025 02 PM PST            3.55             56                        Normal
  12/20/2025 03 PM PST            3.54             55         -              Normal
  12/20/2025 04 PM PST            3.53             54         -              Normal
  12/20/2025 05 PM PST            3.54             55         +              Normal
  12/20/2025 06 PM PST            3.54             55         0              Normal
  12/20/2025 07 PM PST            3.54             55         0              Normal
  12/20/2025 08 PM PST            3.55             56         +              Normal
  12/20/2025 09 PM PST            3.55             56         0              Normal
  12/20/2025 10 PM PST            3.55             56         0              Normal
  12/20/2025 11 PM PST            3.54             55         -              Normal
  12/21/2025 12 AM PST            3.54             55         0              Normal
  12/21/2025 01 AM PST            3.54             55         0              Normal
  12/21/2025 02 AM PST            3.54             55         0              Normal
  12/21/2025 03 AM PST            3.54             55         0              Normal
  12/21/2025 04 AM PST            3.54             55         0              Normal
  12/21/2025 05 AM PST            3.54             55         0              Normal
  12/21/2025 06 AM PST            3.54             55         0              Normal
  12/21/2025 07 AM PST            3.53             54         -              Normal
  12/21/2025 08 AM PST            3.53             54         0              Normal
  12/21/2025 09 AM PST            3.54             55         +              Normal
  12/21/2025 10 AM PST            3.50             51         -              Normal
  12/21/2025 11 AM PST            3.51             52         +              Normal
  12/21/2025 12 PM PST            3.49             50         -              Normal
  12/21/2025 01 PM PST            3.49             50         0              Normal
  12/21/2025 02 PM PST            3.50             51         +              Normal
  12/21/2025 03 PM PST            3.48             49         -              Normal
  12/21/2025 04 PM PST            3.50             51         +              Normal
  12/21/2025 05 PM PST            3.52             53         +              Normal
  12/21/2025 06 PM PST            3.53             54         +              Normal
  12/21/2025 07 PM PST            3.54             55         +              Normal
  12/21/2025 08 PM PST            3.50             51         -              Normal
  12/21/2025 09 PM PST            3.53             54         +              Normal
  12/21/2025 10 PM PST            3.52             53         -              Normal
  12/21/2025 11 PM PST            3.53             54         +              Normal
  12/22/2025 12 AM PST            3.53             54         0              Normal
  12/22/2025 01 AM PST            3.51             52         -              Normal
  12/22/2025 02 AM PST            3.52             53         +              Normal
  12/22/2025 03 AM PST            3.50             51         -              Normal
  12/22/2025 04 AM PST            3.53             54         +              Normal
  12/22/2025 05 AM PST            3.51             52         -              Normal
  12/22/2025 06 AM PST            3.53             54         +              Normal
  12/22/2025 07 AM PST            3.53             54         0              Normal
  12/22/2025 08 AM PST            3.53             54         0              Normal
  12/22/2025 09 AM PST            3.53             54         0              Normal
  12/22/2025 10 AM PST            3.53             54         0              Normal
  12/22/2025 11 AM PST            3.53             54         0              Normal
  12/22/2025 12 PM PST            3.53             54         0              Normal
  12/22/2025 01 PM PST            3.53             54         0              Normal
  12/22/2025 02 PM PST            3.53             54         0              Normal
  12/22/2025 03 PM PST            3.52             53         -              Normal
  12/22/2025 04 PM PST            3.52             53         0              Normal
  12/22/2025 05 PM PST            3.53             54         +              Normal
  12/22/2025 06 PM PST            3.53             54         0              Normal
  12/22/2025 07 PM PST            3.53             54         0              Normal
  12/22/2025 08 PM PST            3.53             54         0              Normal
  12/22/2025 09 PM PST            3.52             53         -              Normal
  12/22/2025 10 PM PST            3.51             52         -              Normal
  12/22/2025 11 PM PST            3.51             52         0              Normal
  12/23/2025 12 AM PST            3.51             52         0              Normal
  12/23/2025 01 AM PST            3.50             51         -              Normal
  12/23/2025 02 AM PST            3.50             51         0              Normal
  12/23/2025 03 AM PST            3.50             51         0              Normal
  12/23/2025 04 AM PST            3.50             51         0              Normal
  12/23/2025 05 AM PST            3.50             51         0              Normal
  12/23/2025 06 AM PST            3.50             51         0              Normal
  12/23/2025 07 AM PST            3.50             51         0              Normal
  12/23/2025 08 AM PST            3.50             51         0              Normal
  12/23/2025 09 AM PST            3.50             51         0              Normal
  12/23/2025 10 AM PST            3.50             51         0              Normal
  12/23/2025 11 AM PST            3.49             50         -              Normal
  12/23/2025 12 PM PST            3.49             50         0              Normal
  12/23/2025 01 PM PST            3.49             50         0              Normal
  12/23/2025 02 PM PST            3.49             50         0              Normal
  12/23/2025 03 PM PST            3.48             49         -              Normal
  12/23/2025 04 PM PST            3.49             50         +              Normal
  12/23/2025 05 PM PST            3.49             50         0              Normal
  12/23/2025 06 PM PST            3.48             49         -              Normal
  12/23/2025 07 PM PST            3.48             49         0              Normal
  12/23/2025 08 PM PST            3.48             49         0              Normal
  12/23/2025 09 PM PST            3.48             49         0              Normal
  12/23/2025 10 PM PST            3.48             49         0              Normal
  12/23/2025 11 PM PST            3.48             49         0              Normal
  12/24/2025 12 AM PST            3.48             49         0              Normal
  12/24/2025 01 AM PST            3.48             49         0              Normal
  12/24/2025 02 AM PST            3.48             49         0              Normal
  12/24/2025 03 AM PST            3.48             49         0              Normal
  12/24/2025 04 AM PST            3.48             49         0              Normal
  12/24/2025 05 AM PST            3.49             50         +              Normal
  12/24/2025 06 AM PST            3.49             50         0              Normal
  12/24/2025 07 AM PST            3.49             50         0              Normal
  12/24/2025 08 AM PST            3.49             50         0              Normal
  12/24/2025 09 AM PST            3.50             51         +              Normal
  12/24/2025 10 AM PST            3.50             51         0              Normal
  12/24/2025 11 AM PST            3.50             51         0              Normal
  12/24/2025 12 PM PST            3.50             51         0              Normal
  12/24/2025 01 PM PST            3.51             52         +              Normal
  12/24/2025 02 PM PST            3.51             52         0              Normal
  12/24/2025 03 PM PST            3.51             52         0              Normal
  12/24/2025 04 PM PST            3.51             52         0              Normal
  12/24/2025 05 PM PST            3.51             52         0              Normal
  12/24/2025 06 PM PST            3.52             53         +              Normal
  12/24/2025 07 PM PST            3.50             51         -              Normal
  12/24/2025 08 PM PST            3.52             53         +              Normal
  12/24/2025 09 PM PST            3.52             53         0              Normal
  12/24/2025 10 PM PST            3.51             52         -              Normal
  12/24/2025 11 PM PST            3.52             53         +              Normal
  12/25/2025 12 AM PST            3.53             54         +              Normal
  12/25/2025 01 AM PST            3.53             54         0              Normal
  12/25/2025 02 AM PST            3.53             54         0              Normal
  12/25/2025 03 AM PST            3.53             54         0              Normal
  12/25/2025 04 AM PST            3.54             55         +              Normal
  12/25/2025 05 AM PST            3.54             55         0              Normal
  12/25/2025 06 AM PST            3.51             52         -              Normal
  12/25/2025 07 AM PST            3.53             54         +              Normal
  12/25/2025 08 AM PST            3.56             58         +              Normal
  12/25/2025 09 AM PST            3.56             58         0              Normal
  12/25/2025 10 AM PST            3.57             59         +              Normal
  12/25/2025 11 AM PST            3.58             60         +              Normal
  12/25/2025 12 PM PST            3.59             61         +              Normal
  12/25/2025 01 PM PST            3.60             62         +              Normal
#
# FORECAST
#
# Date & Time  (Local)    Stage (Feet)     Flow (cfs)     Trend     Forecast Status
# ---------------------------------------------------------------------------------
  12/25/2025 02 PM PST            3.60             62                        Normal
  12/25/2025 03 PM PST            3.61             64         +              Normal
  12/25/2025 04 PM PST            3.62             65         +              Normal
  12/25/2025 05 PM PST            3.63             66         +              Normal
  12/25/2025 06 PM PST            3.64             68         +              Normal
  12/25/2025 07 PM PST            3.65             69         +              Normal
  12/25/2025 08 PM PST            3.66             70         +              Normal
  12/25/2025 09 PM PST            3.67             71         +              Normal
  12/25/2025 10 PM PST            3.68             73         +              Normal
  12/25/2025 11 PM PST            3.69             74         +              Normal
  12/26/2025 12 AM PST            3.71             77         +              Normal
  12/26/2025 01 AM PST            3.72             78         +              Normal
  12/26/2025 02 AM PST            3.73             80         +              Normal
  12/26/2025 03 AM PST            3.74             81         +              Normal
  12/26/2025 04 AM PST            3.75             82         +              Normal
  12/26/2025 05 AM PST            3.77             85         +              Normal
  12/26/2025 06 AM PST            3.78             87         +              Normal
  12/26/2025 07 AM PST            3.79             88         +              Normal
  12/26/2025 08 AM PST            3.80             89         +              Normal
  12/26/2025 09 AM PST            3.81             91         +              Normal
  12/26/2025 10 AM PST            3.81             91         0              Normal
  12/26/2025 11 AM PST            3.82             92         +              Normal
  12/26/2025 12 PM PST            3.82             92         0              Normal
  12/26/2025 01 PM PST            3.83             94         +              Normal
  12/26/2025 02 PM PST            3.83             94         0              Normal
  12/26/2025 03 PM PST            3.83             94         0              Normal
  12/26/2025 04 PM PST            3.83             94         0              Normal
  12/26/2025 05 PM PST            3.82             92         -              Normal
  12/26/2025 06 PM PST            3.82             92         0              Normal
  12/26/2025 07 PM PST            3.82             92         0              Normal
  12/26/2025 08 PM PST            3.81             91         -              Normal
  12/26/2025 09 PM PST            3.81             91         0              Normal
  12/26/2025 10 PM PST            3.80             89         -              Normal
  12/26/2025 11 PM PST            3.80             89         0              Normal
  12/27/2025 12 AM PST            3.79             88         -              Normal
  12/27/2025 01 AM PST            3.79             88         0              Normal
  12/27/2025 02 AM PST            3.79             88         0              Normal
  12/27/2025 03 AM PST            3.78             87         -              Normal
  12/27/2025 04 AM PST            3.78             87         0              Normal
  12/27/2025 05 AM PST            3.77             85         -              Normal
  12/27/2025 06 AM PST            3.77             85         0              Normal
  12/27/2025 07 AM PST            3.77             85         0              Normal
  12/27/2025 08 AM PST            3.76             84         -              Normal
  12/27/2025 09 AM PST            3.76             84         0              Normal
  12/27/2025 10 AM PST            3.75             82         -              Normal
  12/27/2025 11 AM PST            3.75             82         0              Normal
  12/27/2025 12 PM PST            3.75             82         0              Normal
  12/27/2025 01 PM PST            3.74             81         -              Normal
  12/27/2025 02 PM PST            3.74             81         0              Normal
  12/27/2025 03 PM PST            3.73             80         -              Normal
  12/27/2025 04 PM PST            3.73             80         0              Normal
  12/27/2025 05 PM PST            3.73             80         0              Normal
  12/27/2025 06 PM PST            3.73             80         0              Normal
  12/27/2025 07 PM PST            3.72             78         -              Normal
  12/27/2025 08 PM PST            3.72             78         0              Normal
  12/27/2025 09 PM PST            3.72             78         0              Normal
  12/27/2025 10 PM PST            3.71             77         -              Normal
  12/27/2025 11 PM PST            3.71             77         0              Normal
  12/28/2025 12 AM PST            3.70             75         -              Normal
  12/28/2025 01 AM PST            3.70             75         0              Normal
  12/28/2025 02 AM PST            3.70             75         0              Normal
  12/28/2025 03 AM PST            3.69             74         -              Normal
  12/28/2025 04 AM PST            3.69             74         0              Normal
  12/28/2025 05 AM PST            3.69             74         0              Normal
  12/28/2025 06 AM PST            3.69             74         0              Normal
  12/28/2025 07 AM PST            3.68             73         -              Normal
  12/28/2025 08 AM PST            3.68             73         0              Normal
  12/28/2025 09 AM PST            3.68             73         0              Normal
  12/28/2025 10 AM PST            3.68             73         0              Normal
  12/28/2025 11 AM PST            3.67             71         -              Normal
  12/28/2025 12 PM PST            3.67             71         0              Normal
  12/28/2025 01 PM PST            3.67             71         0              Normal
  12/28/2025 02 PM PST            3.67             71         0              Normal
  12/28/2025 03 PM PST            3.67             71         0              Normal
  12/28/2025 04 PM PST            3.67             71         0              Normal
  12/28/2025 05 PM PST            3.67             71         0              Normal
  12/28/2025 06 PM PST            3.66             70         -              Normal
  12/28/2025 07 PM PST            3.66             70         0              Normal
  12/28/2025 08 PM PST            3.66             70         0              Normal
  12/28/2025 09 PM PST            3.66             70         0              Normal
  12/28/2025 10 PM PST            3.66             70         0              Normal
  12/28/2025 11 PM PST            3.65             69         -              Normal
  12/29/2025 12 AM PST            3.65             69         0              Normal
  12/29/2025 01 AM PST            3.65             69         0              Normal
  12/29/2025 02 AM PST            3.65             69         0              Normal
  12/29/2025 03 AM PST            3.65             69         0              Normal
  12/29/2025 04 AM PST            3.65             69         0              Normal
  12/29/2025 05 AM PST            3.65             69         0              Normal
  12/29/2025 06 AM PST            3.65             69         0              Normal
  12/29/2025 07 AM PST            3.65             69         0              Normal
  12/29/2025 08 AM PST            3.65             69         0              Normal
  12/29/2025 09 AM PST            3.65             69         0              Normal
  12/29/2025 10 AM PST            3.64             68         -              Normal
  12/29/2025 11 AM PST            3.64             68         0              Normal
  12/29/2025 12 PM PST            3.64             68         0              Normal
  12/29/2025 01 PM PST            3.64             68         0              Normal
  12/29/2025 02 PM PST            3.64             68         0              Normal
  12/29/2025 03 PM PST            3.64             68         0              Normal
  12/29/2025 04 PM PST            3.64             68         0              Normal
  12/29/2025 05 PM PST            3.64             68         0              Normal
  12/29/2025 06 PM PST            3.64             68         0              Normal
  12/29/2025 07 PM PST            3.64             68         0              Normal
  12/29/2025 08 PM PST            3.64             68         0              Normal
  12/29/2025 09 PM PST            3.64             68         0              Normal
  12/29/2025 10 PM PST            3.64             68         0              Normal
  12/29/2025 11 PM PST            3.64             68         0              Normal
  12/30/2025 12 AM PST            3.64             68         0              Normal
  12/30/2025 01 AM PST            3.64             68         0              Normal
  12/30/2025 02 AM PST            3.64             68         0              Normal
  12/30/2025 03 AM PST            3.64             68         0              Normal
  12/30/2025 04 AM PST            3.64             68         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.