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 NevadaBulletin Group: Eastern SierraRiver Group: Eastern Sierra
Issuance Time: Nov 17 2025 at 1:50 PM PSTNext Issuance: Nov 18 2025 at 9:00 AM PST
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:  11/17/2025 at 01:50 PM PST
# Data Interval:  1 Hour
#
# Most Recent Date & Time of Maximum Observed:  11/17/2025 at 07:00 AM PST
# Maximum Observed Stage:                       3.75 Feet
# Maximum Observed Flow:                        88 cfs
#
# Earliest Date & Time of Maximum Forecast:     11/18/2025 at 07:00 PM PST
# Maximum Forecast Stage:                       3.76 Feet
# Maximum Forecast Flow:                        89 cfs
#
# OBSERVED
#
# Date & Time  (Local)    Stage (Feet)     Flow (cfs)     Trend     Observed Status
# ---------------------------------------------------------------------------------
  11/12/2025 01 PM PST            3.66             75                        Normal
  11/12/2025 02 PM PST            3.66             75         0              Normal
  11/12/2025 03 PM PST            3.64             73         -              Normal
  11/12/2025 04 PM PST            3.65             74         +              Normal
  11/12/2025 05 PM PST            3.65             74         0              Normal
  11/12/2025 06 PM PST            3.65             74         0              Normal
  11/12/2025 07 PM PST            3.66             75         +              Normal
  11/12/2025 08 PM PST            3.66             75         0              Normal
  11/12/2025 09 PM PST            3.65             74         -              Normal
  11/12/2025 10 PM PST            3.66             75         +              Normal
  11/12/2025 11 PM PST            3.66             75         0              Normal
  11/13/2025 12 AM PST            3.66             75         0              Normal
  11/13/2025 01 AM PST            3.66             75         0              Normal
  11/13/2025 02 AM PST            3.66             75         0              Normal
  11/13/2025 03 AM PST            3.66             75         0              Normal
  11/13/2025 04 AM PST            3.66             75         0              Normal
  11/13/2025 05 AM PST            3.66             75         0              Normal
  11/13/2025 06 AM PST            3.66             75         0              Normal
  11/13/2025 07 AM PST            3.66             75         0              Normal
  11/13/2025 08 AM PST            3.66             75         0              Normal
  11/13/2025 09 AM PST            3.66             75         0              Normal
  11/13/2025 10 AM PST            3.66             75         0              Normal
  11/13/2025 11 AM PST            3.66             75         0              Normal
  11/13/2025 12 PM PST            3.65             74         -              Normal
  11/13/2025 01 PM PST            3.65             74         0              Normal
  11/13/2025 02 PM PST            3.65             74         0              Normal
  11/13/2025 03 PM PST            3.65             74         0              Normal
  11/13/2025 04 PM PST            3.66             75         +              Normal
  11/13/2025 05 PM PST            3.65             74         -              Normal
  11/13/2025 06 PM PST            3.65             74         0              Normal
  11/13/2025 07 PM PST            3.66             75         +              Normal
  11/13/2025 08 PM PST            3.65             74         -              Normal
  11/13/2025 09 PM PST            3.65             74         0              Normal
  11/13/2025 10 PM PST            3.64             73         -              Normal
  11/13/2025 11 PM PST            3.64             73         0              Normal
  11/14/2025 12 AM PST            3.64             73         0              Normal
  11/14/2025 01 AM PST            3.65             74         +              Normal
  11/14/2025 02 AM PST            3.66             75         +              Normal
  11/14/2025 03 AM PST            3.66             75         0              Normal
  11/14/2025 04 AM PST            3.67             77         +              Normal
  11/14/2025 05 AM PST            3.67             77         0              Normal
  11/14/2025 06 AM PST            3.68             78         +              Normal
  11/14/2025 07 AM PST            3.68             78         0              Normal
  11/14/2025 08 AM PST            3.68             78         0              Normal
  11/14/2025 09 AM PST            3.69             80         +              Normal
  11/14/2025 10 AM PST            3.68             78         -              Normal
  11/14/2025 11 AM PST            3.68             78         0              Normal
  11/14/2025 12 PM PST            3.69             80         +              Normal
  11/14/2025 01 PM PST            3.69             80         0              Normal
  11/14/2025 02 PM PST            3.68             78         -              Normal
  11/14/2025 03 PM PST            3.69             80         +              Normal
  11/14/2025 04 PM PST            3.69             80         0              Normal
  11/14/2025 05 PM PST            3.70             81         +              Normal
  11/14/2025 06 PM PST            3.70             81         0              Normal
  11/14/2025 07 PM PST            3.69             80         -              Normal
  11/14/2025 08 PM PST            3.70             81         +              Normal
  11/14/2025 09 PM PST            3.70             81         0              Normal
  11/14/2025 10 PM PST            3.70             81         0              Normal
  11/14/2025 11 PM PST            3.69             80         -              Normal
  11/15/2025 12 AM PST            3.70             81         +              Normal
  11/15/2025 01 AM PST            3.69             80         -              Normal
  11/15/2025 02 AM PST            3.69             80         0              Normal
  11/15/2025 03 AM PST            3.69             80         0              Normal
  11/15/2025 04 AM PST            3.69             80         0              Normal
  11/15/2025 05 AM PST            3.69             80         0              Normal
  11/15/2025 06 AM PST            3.69             80         0              Normal
  11/15/2025 07 AM PST            3.69             80         0              Normal
  11/15/2025 08 AM PST            3.70             81         +              Normal
  11/15/2025 09 AM PST            3.71             82         +              Normal
  11/15/2025 10 AM PST            3.71             82         0              Normal
  11/15/2025 11 AM PST            3.70             81         -              Normal
  11/15/2025 12 PM PST            3.70             81         0              Normal
  11/15/2025 01 PM PST            3.70             81         0              Normal
  11/15/2025 02 PM PST            3.71             82         +              Normal
  11/15/2025 03 PM PST            3.70             81         -              Normal
  11/15/2025 04 PM PST            3.70             81         0              Normal
  11/15/2025 05 PM PST            3.70             81         0              Normal
  11/15/2025 06 PM PST            3.70             81         0              Normal
  11/15/2025 07 PM PST            3.70             81         0              Normal
  11/15/2025 08 PM PST            3.71             82         +              Normal
  11/15/2025 09 PM PST            3.71             82         0              Normal
  11/15/2025 10 PM PST            3.71             82         0              Normal
  11/15/2025 11 PM PST            3.71             82         0              Normal
  11/16/2025 12 AM PST            3.72             84         +              Normal
  11/16/2025 01 AM PST            3.73             85         +              Normal
  11/16/2025 02 AM PST            3.72             84         -              Normal
  11/16/2025 03 AM PST            3.72             84         0              Normal
  11/16/2025 04 AM PST            3.73             85         +              Normal
  11/16/2025 05 AM PST            3.72             84         -              Normal
  11/16/2025 06 AM PST            3.73             85         +              Normal
  11/16/2025 07 AM PST            3.73             85         0              Normal
  11/16/2025 08 AM PST            3.73             85         0              Normal
  11/16/2025 09 AM PST            3.73             85         0              Normal
  11/16/2025 10 AM PST            3.74             87         +              Normal
  11/16/2025 11 AM PST            3.74             87         0              Normal
  11/16/2025 12 PM PST            3.73             85         -              Normal
  11/16/2025 01 PM PST            3.73             85         0              Normal
  11/16/2025 02 PM PST            3.73             85         0              Normal
  11/16/2025 03 PM PST            3.74             87         +              Normal
  11/16/2025 04 PM PST            3.73             85         -              Normal
  11/16/2025 05 PM PST            3.75             88         +              Normal
  11/16/2025 06 PM PST            3.74             87         -              Normal
  11/16/2025 07 PM PST            3.73             85         -              Normal
  11/16/2025 08 PM PST            3.74             87         +              Normal
  11/16/2025 09 PM PST            3.74             87         0              Normal
  11/16/2025 10 PM PST            3.74             87         0              Normal
  11/16/2025 11 PM PST            3.74             87         0              Normal
  11/17/2025 12 AM PST            3.74             87         0              Normal
  11/17/2025 01 AM PST            3.74             87         0              Normal
  11/17/2025 02 AM PST            3.74             87         0              Normal
  11/17/2025 03 AM PST            3.74             87         0              Normal
  11/17/2025 04 AM PST            3.74             87         0              Normal
  11/17/2025 05 AM PST            3.74             87         0              Normal
  11/17/2025 06 AM PST            3.75             88         +              Normal
  11/17/2025 07 AM PST            3.75             88         0              Normal
  11/17/2025 08 AM PST            3.74             87         -              Normal
  11/17/2025 09 AM PST            3.74             87         0              Normal
  11/17/2025 10 AM PST            3.74             87         0              Normal
  11/17/2025 11 AM PST            3.74             87         0              Normal
  11/17/2025 12 PM PST            3.74             87         0              Normal
  11/17/2025 01 PM PST            3.74             87         0              Normal
#
# FORECAST
#
# Date & Time  (Local)    Stage (Feet)     Flow (cfs)     Trend     Forecast Status
# ---------------------------------------------------------------------------------
  11/17/2025 02 PM PST            3.74             87                        Normal
  11/17/2025 03 PM PST            3.74             87         0              Normal
  11/17/2025 04 PM PST            3.74             87         0              Normal
  11/17/2025 05 PM PST            3.74             87         0              Normal
  11/17/2025 06 PM PST            3.74             87         0              Normal
  11/17/2025 07 PM PST            3.74             87         0              Normal
  11/17/2025 08 PM PST            3.74             87         0              Normal
  11/17/2025 09 PM PST            3.74             87         0              Normal
  11/17/2025 10 PM PST            3.74             87         0              Normal
  11/17/2025 11 PM PST            3.74             87         0              Normal
  11/18/2025 12 AM PST            3.74             87         0              Normal
  11/18/2025 01 AM PST            3.74             87         0              Normal
  11/18/2025 02 AM PST            3.74             87         0              Normal
  11/18/2025 03 AM PST            3.75             88         +              Normal
  11/18/2025 04 AM PST            3.75             88         0              Normal
  11/18/2025 05 AM PST            3.75             88         0              Normal
  11/18/2025 06 AM PST            3.75             88         0              Normal
  11/18/2025 07 AM PST            3.75             88         0              Normal
  11/18/2025 08 AM PST            3.75             88         0              Normal
  11/18/2025 09 AM PST            3.75             88         0              Normal
  11/18/2025 10 AM PST            3.75             88         0              Normal
  11/18/2025 11 AM PST            3.75             88         0              Normal
  11/18/2025 12 PM PST            3.75             88         0              Normal
  11/18/2025 01 PM PST            3.75             88         0              Normal
  11/18/2025 02 PM PST            3.75             88         0              Normal
  11/18/2025 03 PM PST            3.75             88         0              Normal
  11/18/2025 04 PM PST            3.75             88         0              Normal
  11/18/2025 05 PM PST            3.75             88         0              Normal
  11/18/2025 06 PM PST            3.75             88         0              Normal
  11/18/2025 07 PM PST            3.76             89         +              Normal
  11/18/2025 08 PM PST            3.76             89         0              Normal
  11/18/2025 09 PM PST            3.76             89         0              Normal
  11/18/2025 10 PM PST            3.76             89         0              Normal
  11/18/2025 11 PM PST            3.76             89         0              Normal
  11/19/2025 12 AM PST            3.76             89         0              Normal
  11/19/2025 01 AM PST            3.76             89         0              Normal
  11/19/2025 02 AM PST            3.76             89         0              Normal
  11/19/2025 03 AM PST            3.76             89         0              Normal
  11/19/2025 04 AM PST            3.76             89         0              Normal
  11/19/2025 05 AM PST            3.76             89         0              Normal
  11/19/2025 06 AM PST            3.76             89         0              Normal
  11/19/2025 07 AM PST            3.76             89         0              Normal
  11/19/2025 08 AM PST            3.76             89         0              Normal
  11/19/2025 09 AM PST            3.75             88         -              Normal
  11/19/2025 10 AM PST            3.75             88         0              Normal
  11/19/2025 11 AM PST            3.75             88         0              Normal
  11/19/2025 12 PM PST            3.75             88         0              Normal
  11/19/2025 01 PM PST            3.75             88         0              Normal
  11/19/2025 02 PM PST            3.75             88         0              Normal
  11/19/2025 03 PM PST            3.74             87         -              Normal
  11/19/2025 04 PM PST            3.74             87         0              Normal
  11/19/2025 05 PM PST            3.74             87         0              Normal
  11/19/2025 06 PM PST            3.74             87         0              Normal
  11/19/2025 07 PM PST            3.73             85         -              Normal
  11/19/2025 08 PM PST            3.73             85         0              Normal
  11/19/2025 09 PM PST            3.73             85         0              Normal
  11/19/2025 10 PM PST            3.73             85         0              Normal
  11/19/2025 11 PM PST            3.73             85         0              Normal
  11/20/2025 12 AM PST            3.72             84         -              Normal
  11/20/2025 01 AM PST            3.72             84         0              Normal
  11/20/2025 02 AM PST            3.72             84         0              Normal
  11/20/2025 03 AM PST            3.71             82         -              Normal
  11/20/2025 04 AM PST            3.71             82         0              Normal
  11/20/2025 05 AM PST            3.71             82         0              Normal
  11/20/2025 06 AM PST            3.71             82         0              Normal
  11/20/2025 07 AM PST            3.70             81         -              Normal
  11/20/2025 08 AM PST            3.70             81         0              Normal
  11/20/2025 09 AM PST            3.70             81         0              Normal
  11/20/2025 10 AM PST            3.70             81         0              Normal
  11/20/2025 11 AM PST            3.70             81         0              Normal
  11/20/2025 12 PM PST            3.69             80         -              Normal
  11/20/2025 01 PM PST            3.69             80         0              Normal
  11/20/2025 02 PM PST            3.69             80         0              Normal
  11/20/2025 03 PM PST            3.69             80         0              Normal
  11/20/2025 04 PM PST            3.69             80         0              Normal
  11/20/2025 05 PM PST            3.69             80         0              Normal
  11/20/2025 06 PM PST            3.69             80         0              Normal
  11/20/2025 07 PM PST            3.69             80         0              Normal
  11/20/2025 08 PM PST            3.69             80         0              Normal
  11/20/2025 09 PM PST            3.69             80         0              Normal
  11/20/2025 10 PM PST            3.69             80         0              Normal
  11/20/2025 11 PM PST            3.69             80         0              Normal
  11/21/2025 12 AM PST            3.70             81         +              Normal
  11/21/2025 01 AM PST            3.70             81         0              Normal
  11/21/2025 02 AM PST            3.70             81         0              Normal
  11/21/2025 03 AM PST            3.70             81         0              Normal
  11/21/2025 04 AM PST            3.70             81         0              Normal
  11/21/2025 05 AM PST            3.70             81         0              Normal
  11/21/2025 06 AM PST            3.71             82         +              Normal
  11/21/2025 07 AM PST            3.71             82         0              Normal
  11/21/2025 08 AM PST            3.71             82         0              Normal
  11/21/2025 09 AM PST            3.71             82         0              Normal
  11/21/2025 10 AM PST            3.71             82         0              Normal
  11/21/2025 11 AM PST            3.71             82         0              Normal
  11/21/2025 12 PM PST            3.71             82         0              Normal
  11/21/2025 01 PM PST            3.72             84         +              Normal
  11/21/2025 02 PM PST            3.72             84         0              Normal
  11/21/2025 03 PM PST            3.72             84         0              Normal
  11/21/2025 04 PM PST            3.72             84         0              Normal
  11/21/2025 05 PM PST            3.72             84         0              Normal
  11/21/2025 06 PM PST            3.72             84         0              Normal
  11/21/2025 07 PM PST            3.72             84         0              Normal
  11/21/2025 08 PM PST            3.72             84         0              Normal
  11/21/2025 09 PM PST            3.72             84         0              Normal
  11/21/2025 10 PM PST            3.73             85         +              Normal
  11/21/2025 11 PM PST            3.73             85         0              Normal
  11/22/2025 12 AM PST            3.73             85         0              Normal
  11/22/2025 01 AM PST            3.73             85         0              Normal
  11/22/2025 02 AM PST            3.73             85         0              Normal
  11/22/2025 03 AM PST            3.73             85         0              Normal
  11/22/2025 04 AM PST            3.73             85         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.