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: May 26 2017 at 1:17 PM PDTNext Issuance: May 27 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:  05/26/2017  01:18 PM PDT
# Interval:  1 Hour
#
# Most Recent Date & Time of Maximum Observed:  05/26/2017 01 PM PDT
# Maximum Observed Stage:                       9.7 Feet
# Maximum Observed Flow:                        2032 cfs
#
# Earliest Date & Time of Maximum Forecast:     05/31/2017 05 AM PDT
# Maximum Forecast Stage:                       10.4 Feet
# Maximum Forecast Flow:                        2306 cfs
#
# OBSERVED
#
# Date & Time  (Local)    Stage (Feet)     Flow (cfs)     Trend     Observed Status
# ---------------------------------------------------------------------------------
  05/21/2017 01 PM PDT             9.4           1884                 Above Monitor
  05/21/2017 02 PM PDT             9.3           1871         -       Above Monitor
  05/21/2017 03 PM PDT             9.3           1866         -       Above Monitor
  05/21/2017 04 PM PDT             9.3           1871         +       Above Monitor
  05/21/2017 05 PM PDT             9.3           1862         -       Above Monitor
  05/21/2017 06 PM PDT             9.3           1871         +       Above Monitor
  05/21/2017 07 PM PDT             9.3           1857         -       Above Monitor
  05/21/2017 08 PM PDT             9.3           1866         +       Above Monitor
  05/21/2017 09 PM PDT             9.3           1857         -       Above Monitor
  05/21/2017 10 PM PDT             9.3           1848         -       Above Monitor
  05/21/2017 11 PM PDT             9.4           1888         +       Above Monitor
  05/22/2017 12 AM PDT             9.3           1866         -       Above Monitor
  05/22/2017 01 AM PDT             9.3           1840         -       Above Monitor
  05/22/2017 02 AM PDT             9.3           1844         +       Above Monitor
  05/22/2017 03 AM PDT             9.2           1822         -              Normal
  05/22/2017 04 AM PDT             9.3           1840         +       Above Monitor
  05/22/2017 05 AM PDT             9.3           1844         +       Above Monitor
  05/22/2017 06 AM PDT             9.3           1848         +       Above Monitor
  05/22/2017 07 AM PDT             9.3           1853         +       Above Monitor
  05/22/2017 08 AM PDT             9.3           1848         -       Above Monitor
  05/22/2017 09 AM PDT             9.3           1844         -       Above Monitor
  05/22/2017 10 AM PDT             9.3           1848         +       Above Monitor
  05/22/2017 11 AM PDT             9.3           1844         -       Above Monitor
  05/22/2017 12 PM PDT             9.3           1844         0       Above Monitor
  05/22/2017 01 PM PDT             9.2           1835         -              Normal
  05/22/2017 02 PM PDT             9.3           1857         +       Above Monitor
  05/22/2017 03 PM PDT             9.3           1861         +       Above Monitor
  05/22/2017 04 PM PDT             9.3           1853         -       Above Monitor
  05/22/2017 05 PM PDT             9.3           1857         +       Above Monitor
  05/22/2017 06 PM PDT             9.3           1857         0       Above Monitor
  05/22/2017 07 PM PDT             9.3           1857         0       Above Monitor
  05/22/2017 08 PM PDT             9.3           1853         -       Above Monitor
  05/22/2017 09 PM PDT             9.3           1844         -       Above Monitor
  05/22/2017 10 PM PDT             9.3           1848         +       Above Monitor
  05/22/2017 11 PM PDT             9.3           1844         -       Above Monitor
  05/23/2017 12 AM PDT             9.3           1861         +       Above Monitor
  05/23/2017 01 AM PDT             9.3           1861         0       Above Monitor
  05/23/2017 02 AM PDT             9.3           1861         0       Above Monitor
  05/23/2017 03 AM PDT             9.3           1848         -       Above Monitor
  05/23/2017 04 AM PDT             9.3           1857         +       Above Monitor
  05/23/2017 05 AM PDT             9.3           1857         0       Above Monitor
  05/23/2017 06 AM PDT             9.3           1844         -       Above Monitor
  05/23/2017 07 AM PDT             9.3           1848         +       Above Monitor
  05/23/2017 08 AM PDT             9.3           1866         +       Above Monitor
  05/23/2017 09 AM PDT             9.3           1861         -       Above Monitor
  05/23/2017 10 AM PDT             9.3           1874         +       Above Monitor
  05/23/2017 11 AM PDT             9.4           1887         +       Above Monitor
  05/23/2017 12 PM PDT             9.4           1892         +       Above Monitor
  05/23/2017 01 PM PDT             9.4           1887         -       Above Monitor
  05/23/2017 02 PM PDT             9.4           1892         +       Above Monitor
  05/23/2017 03 PM PDT             9.3           1883         -       Above Monitor
  05/23/2017 04 PM PDT             9.3           1883         0       Above Monitor
  05/23/2017 05 PM PDT             9.3           1879         -       Above Monitor
  05/23/2017 06 PM PDT             9.4           1896         +       Above Monitor
  05/23/2017 07 PM PDT             9.4           1887         -       Above Monitor
  05/23/2017 08 PM PDT             9.4           1892         +       Above Monitor
  05/23/2017 09 PM PDT             9.4           1901         +       Above Monitor
  05/23/2017 10 PM PDT             9.4           1887         -       Above Monitor
  05/23/2017 11 PM PDT             9.4           1892         +       Above Monitor
  05/24/2017 12 AM PDT             9.4           1905         +       Above Monitor
  05/24/2017 01 AM PDT             9.4           1896         -       Above Monitor
  05/24/2017 02 AM PDT             9.4           1896         0       Above Monitor
  05/24/2017 03 AM PDT             9.4           1901         +       Above Monitor
  05/24/2017 04 AM PDT             9.3           1883         -       Above Monitor
  05/24/2017 05 AM PDT             9.3           1883         0       Above Monitor
  05/24/2017 06 AM PDT             9.3           1883         0       Above Monitor
  05/24/2017 07 AM PDT             9.4           1892         +       Above Monitor
  05/24/2017 08 AM PDT             9.3           1883         -       Above Monitor
  05/24/2017 09 AM PDT             9.3           1870         -       Above Monitor
  05/24/2017 10 AM PDT             9.3           1883         +       Above Monitor
  05/24/2017 11 AM PDT             9.3           1870         -       Above Monitor
  05/24/2017 12 PM PDT             9.3           1870         0       Above Monitor
  05/24/2017 01 PM PDT             9.4           1892         +       Above Monitor
  05/24/2017 02 PM PDT             9.3           1870         -       Above Monitor
  05/24/2017 03 PM PDT             9.4           1892         +       Above Monitor
  05/24/2017 04 PM PDT             9.4           1887         -       Above Monitor
  05/24/2017 05 PM PDT             9.3           1861         -       Above Monitor
  05/24/2017 06 PM PDT             9.3           1870         +       Above Monitor
  05/24/2017 07 PM PDT             9.3           1879         +       Above Monitor
  05/24/2017 08 PM PDT             9.4           1887         +       Above Monitor
  05/24/2017 09 PM PDT             9.3           1861         -       Above Monitor
  05/24/2017 10 PM PDT             9.4           1887         +       Above Monitor
  05/24/2017 11 PM PDT             9.4           1887         0       Above Monitor
  05/25/2017 12 AM PDT             9.3           1879         -       Above Monitor
  05/25/2017 01 AM PDT             9.3           1857         -       Above Monitor
  05/25/2017 02 AM PDT             9.3           1874         +       Above Monitor
  05/25/2017 03 AM PDT             9.4           1887         +       Above Monitor
  05/25/2017 04 AM PDT             9.3           1879         -       Above Monitor
  05/25/2017 05 AM PDT             9.3           1866         -       Above Monitor
  05/25/2017 06 AM PDT             9.4           1887         +       Above Monitor
  05/25/2017 07 AM PDT             9.3           1879         -       Above Monitor
  05/25/2017 08 AM PDT             9.4           1887         +       Above Monitor
  05/25/2017 09 AM PDT             9.4           1901         +       Above Monitor
  05/25/2017 10 AM PDT             9.4           1887         -       Above Monitor
  05/25/2017 11 AM PDT             9.3           1883         -       Above Monitor
  05/25/2017 12 PM PDT             9.4           1901         +       Above Monitor
  05/25/2017 01 PM PDT             9.4           1905         +       Above Monitor
  05/25/2017 02 PM PDT             9.4           1914         +       Above Monitor
  05/25/2017 03 PM PDT             9.4           1914         0       Above Monitor
  05/25/2017 04 PM PDT             9.4           1923         +       Above Monitor
  05/25/2017 05 PM PDT             9.5           1936         +       Above Monitor
  05/25/2017 06 PM PDT             9.5           1936         0       Above Monitor
  05/25/2017 07 PM PDT             9.4           1923         -       Above Monitor
  05/25/2017 08 PM PDT             9.5           1950         +       Above Monitor
  05/25/2017 09 PM PDT             9.5           1936         -       Above Monitor
  05/25/2017 10 PM PDT             9.5           1950         +       Above Monitor
  05/25/2017 11 PM PDT             9.5           1963         +       Above Monitor
  05/26/2017 12 AM PDT             9.5           1954         -       Above Monitor
  05/26/2017 01 AM PDT             9.5           1963         +       Above Monitor
  05/26/2017 02 AM PDT             9.6           1989         +       Above Monitor
  05/26/2017 03 AM PDT             9.6           1993         +       Above Monitor
  05/26/2017 04 AM PDT             9.6           1980         -       Above Monitor
  05/26/2017 05 AM PDT             9.6           1976         -       Above Monitor
  05/26/2017 06 AM PDT             9.6           1976         0       Above Monitor
  05/26/2017 07 AM PDT             9.6           1989         +       Above Monitor
  05/26/2017 08 AM PDT             9.6           1993         +       Above Monitor
  05/26/2017 09 AM PDT             9.6           2006         +       Above Monitor
  05/26/2017 10 AM PDT             9.6           2015         +       Above Monitor
  05/26/2017 11 AM PDT             9.7           2020         +       Above Monitor
  05/26/2017 12 PM PDT             9.7           2026         +       Above Monitor
  05/26/2017 01 PM PDT             9.7           2032         +       Above Monitor
#
# FORECAST
#
# Date & Time  (Local)    Stage (Feet)     Flow (cfs)     Trend     Forecast Status
# ---------------------------------------------------------------------------------
  05/26/2017 02 PM PDT             9.7           2037                 Above Monitor
  05/26/2017 03 PM PDT             9.7           2045         +       Above Monitor
  05/26/2017 04 PM PDT             9.7           2053         +       Above Monitor
  05/26/2017 05 PM PDT             9.7           2057         +       Above Monitor
  05/26/2017 06 PM PDT             9.8           2060         +         Above Flood
  05/26/2017 07 PM PDT             9.8           2061         +         Above Flood
  05/26/2017 08 PM PDT             9.7           2059         -       Above Monitor
  05/26/2017 09 PM PDT             9.7           2056         -       Above Monitor
  05/26/2017 10 PM PDT             9.7           2052         -       Above Monitor
  05/26/2017 11 PM PDT             9.7           2050         -       Above Monitor
  05/27/2017 12 AM PDT             9.7           2050         0       Above Monitor
  05/27/2017 01 AM PDT             9.7           2052         +       Above Monitor
  05/27/2017 02 AM PDT             9.7           2055         +       Above Monitor
  05/27/2017 03 AM PDT             9.7           2059         +       Above Monitor
  05/27/2017 04 AM PDT             9.8           2065         +         Above Flood
  05/27/2017 05 AM PDT             9.8           2072         +         Above Flood
  05/27/2017 06 AM PDT             9.8           2080         +         Above Flood
  05/27/2017 07 AM PDT             9.8           2089         +         Above Flood
  05/27/2017 08 AM PDT             9.8           2098         +         Above Flood
  05/27/2017 09 AM PDT             9.9           2108         +         Above Flood
  05/27/2017 10 AM PDT             9.9           2117         +         Above Flood
  05/27/2017 11 AM PDT             9.9           2127         +         Above Flood
  05/27/2017 12 PM PDT             9.9           2136         +         Above Flood
  05/27/2017 01 PM PDT             9.9           2144         +         Above Flood
  05/27/2017 02 PM PDT            10.0           2152         +         Above Flood
  05/27/2017 03 PM PDT            10.0           2159         +         Above Flood
  05/27/2017 04 PM PDT            10.0           2165         +         Above Flood
  05/27/2017 05 PM PDT            10.0           2170         +         Above Flood
  05/27/2017 06 PM PDT            10.0           2174         +         Above Flood
  05/27/2017 07 PM PDT            10.0           2175         +         Above Flood
  05/27/2017 08 PM PDT            10.0           2175         0         Above Flood
  05/27/2017 09 PM PDT            10.0           2173         -         Above Flood
  05/27/2017 10 PM PDT            10.0           2169         -         Above Flood
  05/27/2017 11 PM PDT            10.0           2165         -         Above Flood
  05/28/2017 12 AM PDT            10.0           2160         -         Above Flood
  05/28/2017 01 AM PDT            10.0           2154         -         Above Flood
  05/28/2017 02 AM PDT            10.0           2149         -         Above Flood
  05/28/2017 03 AM PDT             9.9           2145         -         Above Flood
  05/28/2017 04 AM PDT             9.9           2141         -         Above Flood
  05/28/2017 05 AM PDT             9.9           2138         -         Above Flood
  05/28/2017 06 AM PDT             9.9           2136         -         Above Flood
  05/28/2017 07 AM PDT             9.9           2135         -         Above Flood
  05/28/2017 08 AM PDT             9.9           2135         0         Above Flood
  05/28/2017 09 AM PDT             9.9           2136         +         Above Flood
  05/28/2017 10 AM PDT             9.9           2137         +         Above Flood
  05/28/2017 11 AM PDT             9.9           2139         +         Above Flood
  05/28/2017 12 PM PDT             9.9           2141         +         Above Flood
  05/28/2017 01 PM PDT             9.9           2142         +         Above Flood
  05/28/2017 02 PM PDT             9.9           2144         +         Above Flood
  05/28/2017 03 PM PDT             9.9           2145         +         Above Flood
  05/28/2017 04 PM PDT             9.9           2145         0         Above Flood
  05/28/2017 05 PM PDT             9.9           2145         0         Above Flood
  05/28/2017 06 PM PDT             9.9           2145         0         Above Flood
  05/28/2017 07 PM PDT             9.9           2143         -         Above Flood
  05/28/2017 08 PM PDT             9.9           2141         -         Above Flood
  05/28/2017 09 PM PDT             9.9           2138         -         Above Flood
  05/28/2017 10 PM PDT             9.9           2135         -         Above Flood
  05/28/2017 11 PM PDT             9.9           2132         -         Above Flood
  05/29/2017 12 AM PDT             9.9           2130         -         Above Flood
  05/29/2017 01 AM PDT             9.9           2128         -         Above Flood
  05/29/2017 02 AM PDT             9.9           2127         -         Above Flood
  05/29/2017 03 AM PDT             9.9           2127         0         Above Flood
  05/29/2017 04 AM PDT             9.9           2129         +         Above Flood
  05/29/2017 05 AM PDT             9.9           2131         +         Above Flood
  05/29/2017 06 AM PDT             9.9           2135         +         Above Flood
  05/29/2017 07 AM PDT             9.9           2139         +         Above Flood
  05/29/2017 08 AM PDT             9.9           2145         +         Above Flood
  05/29/2017 09 AM PDT            10.0           2151         +         Above Flood
  05/29/2017 10 AM PDT            10.0           2158         +         Above Flood
  05/29/2017 11 AM PDT            10.0           2165         +         Above Flood
  05/29/2017 12 PM PDT            10.0           2172         +         Above Flood
  05/29/2017 01 PM PDT            10.0           2179         +         Above Flood
  05/29/2017 02 PM PDT            10.0           2185         +         Above Flood
  05/29/2017 03 PM PDT            10.1           2191         +         Above Flood
  05/29/2017 04 PM PDT            10.1           2195         +         Above Flood
  05/29/2017 05 PM PDT            10.1           2198         +         Above Flood
  05/29/2017 06 PM PDT            10.1           2201         +         Above Flood
  05/29/2017 07 PM PDT            10.1           2202         +         Above Flood
  05/29/2017 08 PM PDT            10.1           2201         -         Above Flood
  05/29/2017 09 PM PDT            10.1           2200         -         Above Flood
  05/29/2017 10 PM PDT            10.1           2198         -         Above Flood
  05/29/2017 11 PM PDT            10.1           2195         -         Above Flood
  05/30/2017 12 AM PDT            10.1           2193         -         Above Flood
  05/30/2017 01 AM PDT            10.1           2192         -         Above Flood
  05/30/2017 02 AM PDT            10.1           2191         -         Above Flood
  05/30/2017 03 AM PDT            10.1           2192         +         Above Flood
  05/30/2017 04 AM PDT            10.1           2194         +         Above Flood
  05/30/2017 05 AM PDT            10.1           2197         +         Above Flood
  05/30/2017 06 AM PDT            10.1           2202         +         Above Flood
  05/30/2017 07 AM PDT            10.1           2208         +         Above Flood
  05/30/2017 08 AM PDT            10.1           2216         +         Above Flood
  05/30/2017 09 AM PDT            10.1           2224         +         Above Flood
  05/30/2017 10 AM PDT            10.2           2233         +         Above Flood
  05/30/2017 11 AM PDT            10.2           2242         +         Above Flood
  05/30/2017 12 PM PDT            10.2           2251         +         Above Flood
  05/30/2017 01 PM PDT            10.2           2260         +         Above Flood
  05/30/2017 02 PM PDT            10.2           2268         +         Above Flood
  05/30/2017 03 PM PDT            10.3           2275         +         Above Flood
  05/30/2017 04 PM PDT            10.3           2281         +         Above Flood
  05/30/2017 05 PM PDT            10.3           2286         +         Above Flood
  05/30/2017 06 PM PDT            10.3           2291         +         Above Flood
  05/30/2017 07 PM PDT            10.3           2293         +         Above Flood
  05/30/2017 08 PM PDT            10.3           2294         +         Above Flood
  05/30/2017 09 PM PDT            10.3           2294         0         Above Flood
  05/30/2017 10 PM PDT            10.3           2293         -         Above Flood
  05/30/2017 11 PM PDT            10.3           2292         -         Above Flood
  05/31/2017 12 AM PDT            10.3           2291         -         Above Flood
  05/31/2017 01 AM PDT            10.3           2292         +         Above Flood
  05/31/2017 02 AM PDT            10.3           2293         +         Above Flood
  05/31/2017 03 AM PDT            10.3           2296         +         Above Flood
  05/31/2017 04 AM PDT            10.3           2300         +         Above Flood
  05/31/2017 05 AM PDT            10.4           2306         +         Above Flood

# 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.