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 (MASN2)
Latitude: 38.92º NLongitude: 119.19º WElevation: 4420 Feet
Location: Lyon County in NevadaRiver Group: Eastern Sierra
Issuance Time: Apr 23 2017 at 8:31 AM PDTNext Issuance: Apr 24 2017 at 9:00 AM PDT
Monitor Stage: 9.3 FeetFlood Stage: 9.8 Feet

SPECIAL NOTE:Provisional rating under development due to recent sediment removal. Increased uncertainty exists for both observed and forecast flows.

# Tabular River Observed & Forecast - Hydrograph Information
#
# File Generation Time:  04/23/2017  08:31 AM PDT
# Interval:  1 Hour
#
# Most Recent Date & Time of Maximum Observed:  04/18/2017 04 PM PDT
# Maximum Observed Stage:                       7.4 Feet
# Maximum Observed Flow:                        853 cfs
#
# Earliest Date & Time of Maximum Forecast:     04/24/2017 07 AM PDT
# Maximum Forecast Stage:                       7.0 Feet
# Maximum Forecast Flow:                        736 cfs
#
# OBSERVED
#
# Date & Time  (Local)    Stage (Feet)     Flow (cfs)     Trend     Observed Status
# ---------------------------------------------------------------------------------
  04/18/2017 08 AM PDT             7.3            830                        Normal
  04/18/2017 09 AM PDT             7.3            827         -              Normal
  04/18/2017 10 AM PDT             7.3            840         +              Normal
  04/18/2017 11 AM PDT             7.3            837         -              Normal
  04/18/2017 12 PM PDT             7.4            847         +              Normal
  04/18/2017 01 PM PDT             7.4            850         +              Normal
  04/18/2017 02 PM PDT             7.4            847         -              Normal
  04/18/2017 03 PM PDT             7.4            847         0              Normal
  04/18/2017 04 PM PDT             7.4            853         +              Normal
  04/18/2017 05 PM PDT             7.3            840         -              Normal
  04/18/2017 06 PM PDT             7.4            847         +              Normal
  04/18/2017 07 PM PDT             7.3            837         -              Normal
  04/18/2017 08 PM PDT             7.3            830         -              Normal
  04/18/2017 09 PM PDT             7.3            824         -              Normal
  04/18/2017 10 PM PDT             7.2            802         -              Normal
  04/18/2017 11 PM PDT             7.2            805         +              Normal
  04/19/2017 12 AM PDT             7.2            805         0              Normal
  04/19/2017 01 AM PDT             7.3            812         +              Normal
  04/19/2017 02 AM PDT             7.2            802         -              Normal
  04/19/2017 03 AM PDT             7.2            799         -              Normal
  04/19/2017 04 AM PDT             7.2            795         -              Normal
  04/19/2017 05 AM PDT             7.2            802         +              Normal
  04/19/2017 06 AM PDT             7.2            795         -              Normal
  04/19/2017 07 AM PDT             7.2            795         0              Normal
  04/19/2017 08 AM PDT             7.2            786         -              Normal
  04/19/2017 09 AM PDT             7.2            789         +              Normal
  04/19/2017 10 AM PDT             7.1            779         -              Normal
  04/19/2017 11 AM PDT             7.2            792         +              Normal
  04/19/2017 12 PM PDT             7.2            792         0              Normal
  04/19/2017 01 PM PDT             7.2            795         +              Normal
  04/19/2017 02 PM PDT             7.2            789         -              Normal
  04/19/2017 03 PM PDT             7.2            792         +              Normal
  04/19/2017 04 PM PDT             7.2            782         -              Normal
  04/19/2017 05 PM PDT             7.2            786         +              Normal
  04/19/2017 06 PM PDT             7.2            782         -              Normal
  04/19/2017 07 PM PDT             7.1            779         -              Normal
  04/19/2017 08 PM PDT             7.2            789         +              Normal
  04/19/2017 09 PM PDT             7.2            789         0              Normal
  04/19/2017 10 PM PDT             7.2            792         +              Normal
  04/19/2017 11 PM PDT             7.2            792         0              Normal
  04/20/2017 12 AM PDT             7.2            782         -              Normal
  04/20/2017 01 AM PDT             7.2            786         +              Normal
  04/20/2017 02 AM PDT             7.2            786         0              Normal
  04/20/2017 03 AM PDT             7.1            779         -              Normal
  04/20/2017 04 AM PDT             7.2            786         +              Normal
  04/20/2017 05 AM PDT             7.2            789         +              Normal
  04/20/2017 06 AM PDT             7.2            782         -              Normal
  04/20/2017 07 AM PDT             7.2            789         +              Normal
  04/20/2017 08 AM PDT             7.2            789         0              Normal
  04/20/2017 09 AM PDT             7.1            779         -              Normal
  04/20/2017 10 AM PDT             7.1            776         -              Normal
  04/20/2017 11 AM PDT             7.1            779         +              Normal
  04/20/2017 12 PM PDT             7.1            773         -              Normal
  04/20/2017 01 PM PDT             7.1            773         0              Normal
  04/20/2017 02 PM PDT             7.1            776         +              Normal
  04/20/2017 03 PM PDT             7.1            779         +              Normal
  04/20/2017 04 PM PDT             7.1            776         -              Normal
  04/20/2017 05 PM PDT             7.2            782         +              Normal
  04/20/2017 06 PM PDT             7.1            773         -              Normal
  04/20/2017 07 PM PDT             7.2            782         +              Normal
  04/20/2017 08 PM PDT             7.1            776         -              Normal
  04/20/2017 09 PM PDT             7.1            773         -              Normal
  04/20/2017 10 PM PDT             7.2            782         +              Normal
  04/20/2017 11 PM PDT             7.1            770         -              Normal
  04/21/2017 12 AM PDT             7.1            776         +              Normal
  04/21/2017 01 AM PDT             7.1            767         -              Normal
  04/21/2017 02 AM PDT             7.1            770         +              Normal
  04/21/2017 03 AM PDT             7.1            770         0              Normal
  04/21/2017 04 AM PDT             7.1            773         +              Normal
  04/21/2017 05 AM PDT             7.1            767         -              Normal
  04/21/2017 06 AM PDT             7.1            773         +              Normal
  04/21/2017 07 AM PDT             7.1            767         -              Normal
  04/21/2017 08 AM PDT             7.1            760         -              Normal
  04/21/2017 09 AM PDT             7.1            763         +              Normal
  04/21/2017 10 AM PDT             7.1            767         +              Normal
  04/21/2017 11 AM PDT             7.1            773         +              Normal
  04/21/2017 12 PM PDT             7.1            760         -              Normal
  04/21/2017 01 PM PDT             7.1            757         -              Normal
  04/21/2017 02 PM PDT             7.1            754         -              Normal
  04/21/2017 03 PM PDT             7.1            763         +              Normal
  04/21/2017 04 PM PDT             7.1            757         -              Normal
  04/21/2017 05 PM PDT             7.1            763         +              Normal
  04/21/2017 06 PM PDT             7.1            760         -              Normal
  04/21/2017 07 PM PDT             7.1            757         -              Normal
  04/21/2017 08 PM PDT             7.1            751         -              Normal
  04/21/2017 09 PM PDT             7.1            757         +              Normal
  04/21/2017 10 PM PDT             7.1            754         -              Normal
  04/21/2017 11 PM PDT             7.1            754         0              Normal
  04/22/2017 12 AM PDT             7.1            751         -              Normal
  04/22/2017 01 AM PDT             7.1            757         +              Normal
  04/22/2017 02 AM PDT             7.1            751         -              Normal
  04/22/2017 03 AM PDT             7.0            745         -              Normal
  04/22/2017 04 AM PDT             7.1            751         +              Normal
  04/22/2017 05 AM PDT             7.1            754         +              Normal
  04/22/2017 06 AM PDT             7.0            748         -              Normal
  04/22/2017 07 AM PDT             7.0            745         -              Normal
  04/22/2017 08 AM PDT             7.0            745         0              Normal
  04/22/2017 09 AM PDT             7.0            742         -              Normal
  04/22/2017 10 AM PDT             7.1            751         +              Normal
  04/22/2017 11 AM PDT             7.0            748         -              Normal
  04/22/2017 12 PM PDT             7.1            760         +              Normal
  04/22/2017 01 PM PDT             7.1            757         -              Normal
  04/22/2017 02 PM PDT             7.0            748         -              Normal
  04/22/2017 03 PM PDT             7.1            763         +              Normal
  04/22/2017 04 PM PDT             7.1            754         -              Normal
  04/22/2017 05 PM PDT             7.1            754         0              Normal
  04/22/2017 06 PM PDT             7.0            745         -              Normal
  04/22/2017 07 PM PDT             7.0            736         -              Normal
  04/22/2017 08 PM PDT             7.0            733         -              Normal
  04/22/2017 09 PM PDT             7.0            729         -              Normal
  04/22/2017 10 PM PDT             7.0            723         -              Normal
  04/22/2017 11 PM PDT             7.0            723         0              Normal
  04/23/2017 12 AM PDT             6.9            717         -              Normal
  04/23/2017 01 AM PDT             7.0            723         +              Normal
  04/23/2017 02 AM PDT             7.0            726         +              Normal
  04/23/2017 03 AM PDT             7.0            720         -              Normal
  04/23/2017 04 AM PDT             7.0            733         +              Normal
  04/23/2017 05 AM PDT             7.0            729         -              Normal
  04/23/2017 06 AM PDT             7.0            731         +              Normal
  04/23/2017 07 AM PDT             7.0            733         +              Normal
  04/23/2017 08 AM PDT             7.0            734         +              Normal
#
# FORECAST
#
# Date & Time  (Local)    Stage (Feet)     Flow (cfs)     Trend     Forecast Status
# ---------------------------------------------------------------------------------
  04/23/2017 09 AM PDT             7.0            734                        Normal
  04/23/2017 10 AM PDT             7.0            734         0              Normal
  04/23/2017 11 AM PDT             7.0            734         0              Normal
  04/23/2017 12 PM PDT             7.0            733         -              Normal
  04/23/2017 01 PM PDT             7.0            733         0              Normal
  04/23/2017 02 PM PDT             7.0            733         0              Normal
  04/23/2017 03 PM PDT             7.0            734         +              Normal
  04/23/2017 04 PM PDT             7.0            734         0              Normal
  04/23/2017 05 PM PDT             7.0            735         +              Normal
  04/23/2017 06 PM PDT             7.0            732         -              Normal
  04/23/2017 07 PM PDT             7.0            732         0              Normal
  04/23/2017 08 PM PDT             7.0            733         +              Normal
  04/23/2017 09 PM PDT             7.0            733         0              Normal
  04/23/2017 10 PM PDT             7.0            732         -              Normal
  04/23/2017 11 PM PDT             7.0            732         0              Normal
  04/24/2017 12 AM PDT             7.0            732         0              Normal
  04/24/2017 01 AM PDT             7.0            733         +              Normal
  04/24/2017 02 AM PDT             7.0            733         0              Normal
  04/24/2017 03 AM PDT             7.0            734         +              Normal
  04/24/2017 04 AM PDT             7.0            734         0              Normal
  04/24/2017 05 AM PDT             7.0            735         +              Normal
  04/24/2017 06 AM PDT             7.0            735         0              Normal
  04/24/2017 07 AM PDT             7.0            736         +              Normal
  04/24/2017 08 AM PDT             7.0            736         0              Normal
  04/24/2017 09 AM PDT             7.0            736         0              Normal
  04/24/2017 10 AM PDT             7.0            736         0              Normal
  04/24/2017 11 AM PDT             7.0            736         0              Normal
  04/24/2017 12 PM PDT             7.0            736         0              Normal
  04/24/2017 01 PM PDT             7.0            736         0              Normal
  04/24/2017 02 PM PDT             7.0            735         -              Normal
  04/24/2017 03 PM PDT             7.0            735         0              Normal
  04/24/2017 04 PM PDT             7.0            734         -              Normal
  04/24/2017 05 PM PDT             7.0            733         -              Normal
  04/24/2017 06 PM PDT             7.0            730         -              Normal
  04/24/2017 07 PM PDT             7.0            729         -              Normal
  04/24/2017 08 PM PDT             7.0            729         0              Normal
  04/24/2017 09 PM PDT             7.0            728         -              Normal
  04/24/2017 10 PM PDT             7.0            728         0              Normal
  04/24/2017 11 PM PDT             7.0            727         -              Normal
  04/25/2017 12 AM PDT             7.0            727         0              Normal
  04/25/2017 01 AM PDT             7.0            727         0              Normal
  04/25/2017 02 AM PDT             7.0            728         +              Normal
  04/25/2017 03 AM PDT             7.0            728         0              Normal
  04/25/2017 04 AM PDT             7.0            729         +              Normal
  04/25/2017 05 AM PDT             7.0            729         0              Normal
  04/25/2017 06 AM PDT             7.0            730         +              Normal
  04/25/2017 07 AM PDT             7.0            731         +              Normal
  04/25/2017 08 AM PDT             7.0            731         0              Normal
  04/25/2017 09 AM PDT             7.0            731         0              Normal
  04/25/2017 10 AM PDT             7.0            732         +              Normal
  04/25/2017 11 AM PDT             7.0            732         0              Normal
  04/25/2017 12 PM PDT             7.0            731         -              Normal
  04/25/2017 01 PM PDT             7.0            731         0              Normal
  04/25/2017 02 PM PDT             7.0            731         0              Normal
  04/25/2017 03 PM PDT             7.0            730         -              Normal
  04/25/2017 04 PM PDT             7.0            729         -              Normal
  04/25/2017 05 PM PDT             7.0            729         0              Normal
  04/25/2017 06 PM PDT             7.0            725         -              Normal
  04/25/2017 07 PM PDT             7.0            724         -              Normal
  04/25/2017 08 PM PDT             7.0            723         -              Normal
  04/25/2017 09 PM PDT             7.0            722         -              Normal
  04/25/2017 10 PM PDT             7.0            721         -              Normal
  04/25/2017 11 PM PDT             7.0            720         -              Normal
  04/26/2017 12 AM PDT             7.0            719         -              Normal
  04/26/2017 01 AM PDT             7.0            719         0              Normal
  04/26/2017 02 AM PDT             7.0            718         -              Normal
  04/26/2017 03 AM PDT             7.0            718         0              Normal
  04/26/2017 04 AM PDT             7.0            718         0              Normal
  04/26/2017 05 AM PDT             6.9            717         -              Normal
  04/26/2017 06 AM PDT             6.9            717         0              Normal
  04/26/2017 07 AM PDT             6.9            717         0              Normal
  04/26/2017 08 AM PDT             6.9            716         -              Normal
  04/26/2017 09 AM PDT             6.9            716         0              Normal
  04/26/2017 10 AM PDT             6.9            716         0              Normal
  04/26/2017 11 AM PDT             6.9            715         -              Normal
  04/26/2017 12 PM PDT             6.9            714         -              Normal
  04/26/2017 01 PM PDT             6.9            714         0              Normal
  04/26/2017 02 PM PDT             6.9            713         -              Normal
  04/26/2017 03 PM PDT             6.9            712         -              Normal
  04/26/2017 04 PM PDT             6.9            711         -              Normal
  04/26/2017 05 PM PDT             6.9            710         -              Normal
  04/26/2017 06 PM PDT             6.9            707         -              Normal
  04/26/2017 07 PM PDT             6.9            706         -              Normal
  04/26/2017 08 PM PDT             6.9            705         -              Normal
  04/26/2017 09 PM PDT             6.9            704         -              Normal
  04/26/2017 10 PM PDT             6.9            704         0              Normal
  04/26/2017 11 PM PDT             6.9            703         -              Normal
  04/27/2017 12 AM PDT             6.9            703         0              Normal
  04/27/2017 01 AM PDT             6.9            703         0              Normal
  04/27/2017 02 AM PDT             6.9            703         0              Normal
  04/27/2017 03 AM PDT             6.9            703         0              Normal
  04/27/2017 04 AM PDT             6.9            703         0              Normal
  04/27/2017 05 AM PDT             6.9            704         +              Normal
  04/27/2017 06 AM PDT             6.9            705         +              Normal
  04/27/2017 07 AM PDT             6.9            705         0              Normal
  04/27/2017 08 AM PDT             6.9            706         +              Normal
  04/27/2017 09 AM PDT             6.9            706         0              Normal
  04/27/2017 10 AM PDT             6.9            706         0              Normal
  04/27/2017 11 AM PDT             6.9            707         +              Normal
  04/27/2017 12 PM PDT             6.9            707         0              Normal
  04/27/2017 01 PM PDT             6.9            707         0              Normal
  04/27/2017 02 PM PDT             6.9            707         0              Normal
  04/27/2017 03 PM PDT             6.9            707         0              Normal
  04/27/2017 04 PM PDT             6.9            706         -              Normal
  04/27/2017 05 PM PDT             6.9            706         0              Normal
  04/27/2017 06 PM PDT             6.9            703         -              Normal
  04/27/2017 07 PM PDT             6.9            703         0              Normal
  04/27/2017 08 PM PDT             6.9            702         -              Normal
  04/27/2017 09 PM PDT             6.9            702         0              Normal
  04/27/2017 10 PM PDT             6.9            702         0              Normal
  04/27/2017 11 PM PDT             6.9            702         0              Normal
  04/28/2017 12 AM PDT             6.9            702         0              Normal
  04/28/2017 01 AM PDT             6.9            702         0              Normal
  04/28/2017 02 AM PDT             6.9            703         +              Normal
  04/28/2017 03 AM PDT             6.9            703         0              Normal
  04/28/2017 04 AM PDT             6.9            704         +              Normal
  04/28/2017 05 AM PDT             6.9            704         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/or flow.
# NOTE 4: Maximum Values are determined using unrounded stage and/or flow.