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: Jan 18 2018 at 7:45 AM PSTNext Issuance: Jan 18 2018 at 3:00 PM PST
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:  01/18/2018  07:46 AM PST
# Interval:  1 Hour
#
# Most Recent Date & Time of Maximum Observed:  01/18/2018 07 AM PST
# Maximum Observed Stage:                       5.6 Feet
# Maximum Observed Flow:                        281 cfs
#
# Earliest Date & Time of Maximum Forecast:     01/20/2018 07 AM PST
# Maximum Forecast Stage:                       5.6 Feet
# Maximum Forecast Flow:                        286 cfs
#
# OBSERVED
#
# Date & Time  (Local)    Stage (Feet)     Flow (cfs)     Trend     Observed Status
# ---------------------------------------------------------------------------------
  01/13/2018 07 AM PST             5.5            252                        Normal
  01/13/2018 08 AM PST             5.5            250         -              Normal
  01/13/2018 09 AM PST             5.5            256         +              Normal
  01/13/2018 10 AM PST             5.5            252         -              Normal
  01/13/2018 11 AM PST             5.5            252         0              Normal
  01/13/2018 12 PM PST             5.5            252         0              Normal
  01/13/2018 01 PM PST             5.5            254         +              Normal
  01/13/2018 02 PM PST             5.5            252         -              Normal
  01/13/2018 03 PM PST             5.5            252         0              Normal
  01/13/2018 04 PM PST             5.5            254         +              Normal
  01/13/2018 05 PM PST             5.5            254         0              Normal
  01/13/2018 06 PM PST             5.5            259         +              Normal
  01/13/2018 07 PM PST             5.5            260         +              Normal
  01/13/2018 08 PM PST             5.5            259         -              Normal
  01/13/2018 09 PM PST             5.5            260         +              Normal
  01/13/2018 10 PM PST             5.5            259         -              Normal
  01/13/2018 11 PM PST             5.5            260         +              Normal
  01/14/2018 12 AM PST             5.5            262         +              Normal
  01/14/2018 01 AM PST             5.5            262         0              Normal
  01/14/2018 02 AM PST             5.5            262         0              Normal
  01/14/2018 03 AM PST             5.5            260         -              Normal
  01/14/2018 04 AM PST             5.5            264         +              Normal
  01/14/2018 05 AM PST             5.5            262         -              Normal
  01/14/2018 06 AM PST             5.5            266         +              Normal
  01/14/2018 07 AM PST             5.5            266         0              Normal
  01/14/2018 08 AM PST             5.5            264         -              Normal
  01/14/2018 09 AM PST             5.5            266         +              Normal
  01/14/2018 10 AM PST             5.5            264         -              Normal
  01/14/2018 11 AM PST             5.5            264         0              Normal
  01/14/2018 12 PM PST             5.5            262         -              Normal
  01/14/2018 01 PM PST             5.5            266         +              Normal
  01/14/2018 02 PM PST             5.5            266         0              Normal
  01/14/2018 03 PM PST             5.5            266         0              Normal
  01/14/2018 04 PM PST             5.5            269         +              Normal
  01/14/2018 05 PM PST             5.5            266         -              Normal
  01/14/2018 06 PM PST             5.5            266         0              Normal
  01/14/2018 07 PM PST             5.5            269         +              Normal
  01/14/2018 08 PM PST             5.5            269         0              Normal
  01/14/2018 09 PM PST             5.5            266         -              Normal
  01/14/2018 10 PM PST             5.5            269         +              Normal
  01/14/2018 11 PM PST             5.6            271         +              Normal
  01/15/2018 12 AM PST             5.5            269         -              Normal
  01/15/2018 01 AM PST             5.5            269         0              Normal
  01/15/2018 02 AM PST             5.5            269         0              Normal
  01/15/2018 03 AM PST             5.6            271         +              Normal
  01/15/2018 04 AM PST             5.6            273         +              Normal
  01/15/2018 05 AM PST             5.5            269         -              Normal
  01/15/2018 06 AM PST             5.6            273         +              Normal
  01/15/2018 07 AM PST             5.6            271         -              Normal
  01/15/2018 08 AM PST             5.6            271         0              Normal
  01/15/2018 09 AM PST             5.6            273         +              Normal
  01/15/2018 10 AM PST             5.6            271         -              Normal
  01/15/2018 11 AM PST             5.5            266         -              Normal
  01/15/2018 12 PM PST             5.6            271         +              Normal
  01/15/2018 01 PM PST             5.6            275         +              Normal
  01/15/2018 02 PM PST             5.6            273         -              Normal
  01/15/2018 03 PM PST             5.6            273         0              Normal
  01/15/2018 04 PM PST             5.6            273         0              Normal
  01/15/2018 05 PM PST             5.6            273         0              Normal
  01/15/2018 06 PM PST             5.5            269         -              Normal
  01/15/2018 07 PM PST             5.6            271         +              Normal
  01/15/2018 08 PM PST             5.6            273         +              Normal
  01/15/2018 09 PM PST             5.6            271         -              Normal
  01/15/2018 10 PM PST             5.6            271         0              Normal
  01/15/2018 11 PM PST             5.6            273         +              Normal
  01/16/2018 12 AM PST             5.6            273         0              Normal
  01/16/2018 01 AM PST             5.6            273         0              Normal
  01/16/2018 02 AM PST             5.6            271         -              Normal
  01/16/2018 03 AM PST             5.6            275         +              Normal
  01/16/2018 04 AM PST             5.6            275         0              Normal
  01/16/2018 05 AM PST             5.6            273         -              Normal
  01/16/2018 06 AM PST             5.6            275         +              Normal
  01/16/2018 07 AM PST             5.6            273         -              Normal
  01/16/2018 08 AM PST             5.6            275         +              Normal
  01/16/2018 09 AM PST             5.6            275         0              Normal
  01/16/2018 10 AM PST             5.6            273         -              Normal
  01/16/2018 11 AM PST             5.6            273         0              Normal
  01/16/2018 12 PM PST             5.6            273         0              Normal
  01/16/2018 01 PM PST             5.6            275         +              Normal
  01/16/2018 02 PM PST             5.6            273         -              Normal
  01/16/2018 03 PM PST             5.6            275         +              Normal
  01/16/2018 04 PM PST             5.6            275         0              Normal
  01/16/2018 05 PM PST             5.6            275         0              Normal
  01/16/2018 06 PM PST             5.6            277         +              Normal
  01/16/2018 07 PM PST             5.6            275         -              Normal
  01/16/2018 08 PM PST             5.6            277         +              Normal
  01/16/2018 09 PM PST             5.6            277         0              Normal
  01/16/2018 10 PM PST             5.6            275         -              Normal
  01/16/2018 11 PM PST             5.6            275         0              Normal
  01/17/2018 12 AM PST             5.6            279         +              Normal
  01/17/2018 01 AM PST             5.6            275         -              Normal
  01/17/2018 02 AM PST             5.6            277         +              Normal
  01/17/2018 03 AM PST             5.6            277         0              Normal
  01/17/2018 04 AM PST             5.6            275         -              Normal
  01/17/2018 05 AM PST             5.6            277         +              Normal
  01/17/2018 06 AM PST             5.6            279         +              Normal
  01/17/2018 07 AM PST             5.6            277         -              Normal
  01/17/2018 08 AM PST             5.6            279         +              Normal
  01/17/2018 09 AM PST             5.6            277         -              Normal
  01/17/2018 10 AM PST             5.6            279         +              Normal
  01/17/2018 11 AM PST             5.6            277         -              Normal
  01/17/2018 12 PM PST             5.6            277         0              Normal
  01/17/2018 01 PM PST             5.6            275         -              Normal
  01/17/2018 02 PM PST             5.6            275         0              Normal
  01/17/2018 03 PM PST             5.6            275         0              Normal
  01/17/2018 04 PM PST             5.6            277         +              Normal
  01/17/2018 05 PM PST             5.6            277         0              Normal
  01/17/2018 06 PM PST             5.6            277         0              Normal
  01/17/2018 07 PM PST             5.6            277         0              Normal
  01/17/2018 08 PM PST             5.6            277         0              Normal
  01/17/2018 09 PM PST             5.6            277         0              Normal
  01/17/2018 10 PM PST             5.6            277         0              Normal
  01/17/2018 11 PM PST             5.6            277         0              Normal
  01/18/2018 12 AM PST             5.6            277         0              Normal
  01/18/2018 01 AM PST             5.6            275         -              Normal
  01/18/2018 02 AM PST             5.6            277         +              Normal
  01/18/2018 03 AM PST             5.6            275         -              Normal
  01/18/2018 04 AM PST             5.6            279         +              Normal
  01/18/2018 05 AM PST             5.6            277         -              Normal
  01/18/2018 06 AM PST             5.6            281         +              Normal
  01/18/2018 07 AM PST             5.6            281         0              Normal
#
# FORECAST
#
# Date & Time  (Local)    Stage (Feet)     Flow (cfs)     Trend     Forecast Status
# ---------------------------------------------------------------------------------
  01/18/2018 08 AM PST             5.6            280                        Normal
  01/18/2018 09 AM PST             5.6            279         -              Normal
  01/18/2018 10 AM PST             5.6            279         0              Normal
  01/18/2018 11 AM PST             5.6            279         0              Normal
  01/18/2018 12 PM PST             5.6            279         0              Normal
  01/18/2018 01 PM PST             5.6            279         0              Normal
  01/18/2018 02 PM PST             5.6            279         0              Normal
  01/18/2018 03 PM PST             5.6            279         0              Normal
  01/18/2018 04 PM PST             5.6            279         0              Normal
  01/18/2018 05 PM PST             5.6            279         0              Normal
  01/18/2018 06 PM PST             5.6            279         0              Normal
  01/18/2018 07 PM PST             5.6            279         0              Normal
  01/18/2018 08 PM PST             5.6            279         0              Normal
  01/18/2018 09 PM PST             5.6            279         0              Normal
  01/18/2018 10 PM PST             5.6            279         0              Normal
  01/18/2018 11 PM PST             5.6            279         0              Normal
  01/19/2018 12 AM PST             5.6            279         0              Normal
  01/19/2018 01 AM PST             5.6            279         0              Normal
  01/19/2018 02 AM PST             5.6            279         0              Normal
  01/19/2018 03 AM PST             5.6            279         0              Normal
  01/19/2018 04 AM PST             5.6            279         0              Normal
  01/19/2018 05 AM PST             5.6            280         +              Normal
  01/19/2018 06 AM PST             5.6            280         0              Normal
  01/19/2018 07 AM PST             5.6            280         0              Normal
  01/19/2018 08 AM PST             5.6            280         0              Normal
  01/19/2018 09 AM PST             5.6            281         +              Normal
  01/19/2018 10 AM PST             5.6            281         0              Normal
  01/19/2018 11 AM PST             5.6            281         0              Normal
  01/19/2018 12 PM PST             5.6            281         0              Normal
  01/19/2018 01 PM PST             5.6            282         +              Normal
  01/19/2018 02 PM PST             5.6            282         0              Normal
  01/19/2018 03 PM PST             5.6            282         0              Normal
  01/19/2018 04 PM PST             5.6            283         +              Normal
  01/19/2018 05 PM PST             5.6            283         0              Normal
  01/19/2018 06 PM PST             5.6            283         0              Normal
  01/19/2018 07 PM PST             5.6            283         0              Normal
  01/19/2018 08 PM PST             5.6            283         0              Normal
  01/19/2018 09 PM PST             5.6            284         +              Normal
  01/19/2018 10 PM PST             5.6            284         0              Normal
  01/19/2018 11 PM PST             5.6            284         0              Normal
  01/20/2018 12 AM PST             5.6            284         0              Normal
  01/20/2018 01 AM PST             5.6            284         0              Normal
  01/20/2018 02 AM PST             5.6            284         0              Normal
  01/20/2018 03 AM PST             5.6            285         +              Normal
  01/20/2018 04 AM PST             5.6            285         0              Normal
  01/20/2018 05 AM PST             5.6            285         0              Normal
  01/20/2018 06 AM PST             5.6            285         0              Normal
  01/20/2018 07 AM PST             5.6            286         +              Normal
  01/20/2018 08 AM PST             5.6            286         0              Normal
  01/20/2018 09 AM PST             5.6            286         0              Normal
  01/20/2018 10 AM PST             5.6            286         0              Normal
  01/20/2018 11 AM PST             5.6            286         0              Normal
  01/20/2018 12 PM PST             5.6            286         0              Normal
  01/20/2018 01 PM PST             5.6            286         0              Normal
  01/20/2018 02 PM PST             5.6            286         0              Normal
  01/20/2018 03 PM PST             5.6            286         0              Normal
  01/20/2018 04 PM PST             5.6            286         0              Normal
  01/20/2018 05 PM PST             5.6            286         0              Normal
  01/20/2018 06 PM PST             5.6            286         0              Normal
  01/20/2018 07 PM PST             5.6            286         0              Normal
  01/20/2018 08 PM PST             5.6            286         0              Normal
  01/20/2018 09 PM PST             5.6            286         0              Normal
  01/20/2018 10 PM PST             5.6            286         0              Normal
  01/20/2018 11 PM PST             5.6            286         0              Normal
  01/21/2018 12 AM PST             5.6            286         0              Normal
  01/21/2018 01 AM PST             5.6            286         0              Normal
  01/21/2018 02 AM PST             5.6            285         -              Normal
  01/21/2018 03 AM PST             5.6            285         0              Normal
  01/21/2018 04 AM PST             5.6            285         0              Normal
  01/21/2018 05 AM PST             5.6            285         0              Normal
  01/21/2018 06 AM PST             5.6            285         0              Normal
  01/21/2018 07 AM PST             5.6            285         0              Normal
  01/21/2018 08 AM PST             5.6            285         0              Normal
  01/21/2018 09 AM PST             5.6            285         0              Normal
  01/21/2018 10 AM PST             5.6            285         0              Normal
  01/21/2018 11 AM PST             5.6            284         -              Normal
  01/21/2018 12 PM PST             5.6            284         0              Normal
  01/21/2018 01 PM PST             5.6            284         0              Normal
  01/21/2018 02 PM PST             5.6            284         0              Normal
  01/21/2018 03 PM PST             5.6            284         0              Normal
  01/21/2018 04 PM PST             5.6            284         0              Normal
  01/21/2018 05 PM PST             5.6            284         0              Normal
  01/21/2018 06 PM PST             5.6            284         0              Normal
  01/21/2018 07 PM PST             5.6            284         0              Normal
  01/21/2018 08 PM PST             5.6            284         0              Normal
  01/21/2018 09 PM PST             5.6            284         0              Normal
  01/21/2018 10 PM PST             5.6            284         0              Normal
  01/21/2018 11 PM PST             5.6            284         0              Normal
  01/22/2018 12 AM PST             5.6            283         -              Normal
  01/22/2018 01 AM PST             5.6            283         0              Normal
  01/22/2018 02 AM PST             5.6            283         0              Normal
  01/22/2018 03 AM PST             5.6            283         0              Normal
  01/22/2018 04 AM PST             5.6            283         0              Normal
  01/22/2018 05 AM PST             5.6            283         0              Normal
  01/22/2018 06 AM PST             5.6            283         0              Normal
  01/22/2018 07 AM PST             5.6            283         0              Normal
  01/22/2018 08 AM PST             5.6            283         0              Normal
  01/22/2018 09 AM PST             5.6            283         0              Normal
  01/22/2018 10 AM PST             5.6            283         0              Normal
  01/22/2018 11 AM PST             5.6            283         0              Normal
  01/22/2018 12 PM PST             5.6            283         0              Normal
  01/22/2018 01 PM PST             5.6            283         0              Normal
  01/22/2018 02 PM PST             5.6            283         0              Normal
  01/22/2018 03 PM PST             5.6            283         0              Normal
  01/22/2018 04 PM PST             5.6            283         0              Normal
  01/22/2018 05 PM PST             5.6            283         0              Normal
  01/22/2018 06 PM PST             5.6            283         0              Normal
  01/22/2018 07 PM PST             5.6            283         0              Normal
  01/22/2018 08 PM PST             5.6            283         0              Normal
  01/22/2018 09 PM PST             5.6            283         0              Normal
  01/22/2018 10 PM PST             5.6            283         0              Normal
  01/22/2018 11 PM PST             5.6            283         0              Normal
  01/23/2018 12 AM PST             5.6            283         0              Normal
  01/23/2018 01 AM PST             5.6            283         0              Normal
  01/23/2018 02 AM PST             5.6            283         0              Normal
  01/23/2018 03 AM PST             5.6            283         0              Normal
  01/23/2018 04 AM PST             5.6            283         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.