National Weather Service California Nevada River Forecast Center Department of Commerce National Oceanic and Atmospheric Administration National Weather Service
 | 

WALKER RIVER - MASON (MASN2)
Latitude: 38.92º NLongitude: 119.19º WElevation: 4420 Feet
Location: Lyon County in NevadaRiver Group: Eastern Sierra
Issuance Time: Nov 22 2017 at 1:36 PM PSTNext Issuance: Nov 23 2017 at 9:00 AM 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:  11/22/2017  01:37 PM PST
# Interval:  1 Hour
#
# Most Recent Date & Time of Maximum Observed:  11/18/2017 01 PM PST
# Maximum Observed Stage:                       5.0 Feet
# Maximum Observed Flow:                        162 cfs
#
# Earliest Date & Time of Maximum Forecast:     11/27/2017 02 AM PST
# Maximum Forecast Stage:                       4.9 Feet
# Maximum Forecast Flow:                        135 cfs
#
# OBSERVED
#
# Date & Time  (Local)    Stage (Feet)     Flow (cfs)     Trend     Observed Status
# ---------------------------------------------------------------------------------
  11/17/2017 01 PM PST             4.9            135                        Normal
  11/17/2017 02 PM PST             4.9            133         -              Normal
  11/17/2017 03 PM PST             4.9            135         +              Normal
  11/17/2017 04 PM PST             4.9            135         0              Normal
  11/17/2017 05 PM PST             4.9            137         +              Normal
  11/17/2017 06 PM PST             4.9            135         -              Normal
  11/17/2017 07 PM PST             4.9            137         +              Normal
  11/17/2017 08 PM PST             4.9            135         -              Normal
  11/17/2017 09 PM PST             4.9            137         +              Normal
  11/17/2017 10 PM PST             4.9            140         +              Normal
  11/17/2017 11 PM PST             4.9            140         0              Normal
  11/18/2017 12 AM PST             4.9            142         +              Normal
  11/18/2017 01 AM PST             4.9            143         +              Normal
  11/18/2017 02 AM PST             4.9            147         +              Normal
  11/18/2017 03 AM PST             5.0            148         +              Normal
  11/18/2017 04 AM PST             5.0            152         +              Normal
  11/18/2017 05 AM PST             5.0            152         0              Normal
  11/18/2017 06 AM PST             5.0            152         0              Normal
  11/18/2017 07 AM PST             5.0            154         +              Normal
  11/18/2017 08 AM PST             5.0            156         +              Normal
  11/18/2017 09 AM PST             5.0            159         +              Normal
  11/18/2017 10 AM PST             5.0            159         0              Normal
  11/18/2017 11 AM PST             5.0            160         +              Normal
  11/18/2017 12 PM PST             5.0            159         -              Normal
  11/18/2017 01 PM PST             5.0            162         +              Normal
  11/18/2017 02 PM PST             5.0            159         -              Normal
  11/18/2017 03 PM PST             5.0            160         +              Normal
  11/18/2017 04 PM PST             5.0            159         -              Normal
  11/18/2017 05 PM PST             5.0            160         +              Normal
  11/18/2017 06 PM PST             5.0            159         -              Normal
  11/18/2017 07 PM PST             5.0            160         +              Normal
  11/18/2017 08 PM PST             5.0            159         -              Normal
  11/18/2017 09 PM PST             5.0            157         -              Normal
  11/18/2017 10 PM PST             5.0            159         +              Normal
  11/18/2017 11 PM PST             5.0            157         -              Normal
  11/19/2017 12 AM PST             5.0            157         0              Normal
  11/19/2017 01 AM PST             5.0            154         -              Normal
  11/19/2017 02 AM PST             5.0            156         +              Normal
  11/19/2017 03 AM PST             5.0            154         -              Normal
  11/19/2017 04 AM PST             5.0            150         -              Normal
  11/19/2017 05 AM PST             5.0            152         +              Normal
  11/19/2017 06 AM PST             5.0            152         0              Normal
  11/19/2017 07 AM PST             5.0            156         +              Normal
  11/19/2017 08 AM PST             5.0            156         0              Normal
  11/19/2017 09 AM PST             5.0            154         -              Normal
  11/19/2017 10 AM PST             5.0            152         -              Normal
  11/19/2017 11 AM PST             5.0            152         0              Normal
  11/19/2017 12 PM PST             5.0            150         -              Normal
  11/19/2017 01 PM PST             5.0            148         -              Normal
  11/19/2017 02 PM PST             5.0            150         +              Normal
  11/19/2017 03 PM PST             4.9            147         -              Normal
  11/19/2017 04 PM PST             5.0            148         +              Normal
  11/19/2017 05 PM PST             5.0            148         0              Normal
  11/19/2017 06 PM PST             4.9            147         -              Normal
  11/19/2017 07 PM PST             5.0            148         +              Normal
  11/19/2017 08 PM PST             4.9            145         -              Normal
  11/19/2017 09 PM PST             4.9            147         +              Normal
  11/19/2017 10 PM PST             4.9            145         -              Normal
  11/19/2017 11 PM PST             4.9            145         0              Normal
  11/20/2017 12 AM PST             4.9            143         -              Normal
  11/20/2017 01 AM PST             4.9            143         0              Normal
  11/20/2017 02 AM PST             4.9            143         0              Normal
  11/20/2017 03 AM PST             4.9            142         -              Normal
  11/20/2017 04 AM PST             4.9            142         0              Normal
  11/20/2017 05 AM PST             4.9            142         0              Normal
  11/20/2017 06 AM PST             4.9            143         +              Normal
  11/20/2017 07 AM PST             4.9            142         -              Normal
  11/20/2017 08 AM PST             4.9            142         0              Normal
  11/20/2017 09 AM PST             4.9            142         0              Normal
  11/20/2017 10 AM PST             4.9            142         0              Normal
  11/20/2017 11 AM PST             4.9            142         0              Normal
  11/20/2017 12 PM PST             4.9            140         -              Normal
  11/20/2017 01 PM PST             4.9            140         0              Normal
  11/20/2017 02 PM PST             4.9            140         0              Normal
  11/20/2017 03 PM PST             4.9            140         0              Normal
  11/20/2017 04 PM PST             4.9            138         -              Normal
  11/20/2017 05 PM PST             4.9            137         -              Normal
  11/20/2017 06 PM PST             4.9            138         +              Normal
  11/20/2017 07 PM PST             4.9            138         0              Normal
  11/20/2017 08 PM PST             4.9            138         0              Normal
  11/20/2017 09 PM PST             4.9            135         -              Normal
  11/20/2017 10 PM PST             4.9            137         +              Normal
  11/20/2017 11 PM PST             4.9            135         -              Normal
  11/21/2017 12 AM PST             4.9            137         +              Normal
  11/21/2017 01 AM PST             4.9            135         -              Normal
  11/21/2017 02 AM PST             4.9            135         0              Normal
  11/21/2017 03 AM PST             4.9            135         0              Normal
  11/21/2017 04 AM PST             4.9            135         0              Normal
  11/21/2017 05 AM PST             4.9            135         0              Normal
  11/21/2017 06 AM PST             4.9            135         0              Normal
  11/21/2017 07 AM PST             4.9            135         0              Normal
  11/21/2017 08 AM PST             4.9            135         0              Normal
  11/21/2017 09 AM PST             4.9            133         -              Normal
  11/21/2017 10 AM PST             4.9            132         -              Normal
  11/21/2017 11 AM PST             4.9            133         +              Normal
  11/21/2017 12 PM PST             4.9            132         -              Normal
  11/21/2017 01 PM PST             4.9            133         +              Normal
  11/21/2017 02 PM PST             4.9            132         -              Normal
  11/21/2017 03 PM PST             4.9            132         0              Normal
  11/21/2017 04 PM PST             4.8            130         -              Normal
  11/21/2017 05 PM PST             4.8            129         -              Normal
  11/21/2017 06 PM PST             4.8            127         -              Normal
  11/21/2017 07 PM PST             4.8            127         0              Normal
  11/21/2017 08 PM PST             4.8            127         0              Normal
  11/21/2017 09 PM PST             4.8            126         -              Normal
  11/21/2017 10 PM PST             4.8            127         +              Normal
  11/21/2017 11 PM PST             4.8            129         +              Normal
  11/22/2017 12 AM PST             4.8            129         0              Normal
  11/22/2017 01 AM PST             4.8            130         +              Normal
  11/22/2017 02 AM PST             4.8            130         0              Normal
  11/22/2017 03 AM PST             4.8            129         -              Normal
  11/22/2017 04 AM PST             4.8            129         0              Normal
  11/22/2017 05 AM PST             4.8            129         0              Normal
  11/22/2017 06 AM PST             4.8            129         0              Normal
  11/22/2017 07 AM PST             4.8            129         0              Normal
  11/22/2017 08 AM PST             4.8            129         0              Normal
  11/22/2017 09 AM PST             4.8            129         0              Normal
  11/22/2017 10 AM PST             4.8            129         0              Normal
  11/22/2017 11 AM PST             4.8            129         0              Normal
  11/22/2017 12 PM PST             4.8            129         0              Normal
  11/22/2017 01 PM PST             4.8            129         0              Normal
#
# FORECAST
#
# Date & Time  (Local)    Stage (Feet)     Flow (cfs)     Trend     Forecast Status
# ---------------------------------------------------------------------------------
  11/22/2017 02 PM PST             4.8            129                        Normal
  11/22/2017 03 PM PST             4.8            129         0              Normal
  11/22/2017 04 PM PST             4.8            129         0              Normal
  11/22/2017 05 PM PST             4.8            129         0              Normal
  11/22/2017 06 PM PST             4.8            128         -              Normal
  11/22/2017 07 PM PST             4.8            128         0              Normal
  11/22/2017 08 PM PST             4.8            128         0              Normal
  11/22/2017 09 PM PST             4.8            128         0              Normal
  11/22/2017 10 PM PST             4.8            128         0              Normal
  11/22/2017 11 PM PST             4.8            128         0              Normal
  11/23/2017 12 AM PST             4.8            128         0              Normal
  11/23/2017 01 AM PST             4.8            128         0              Normal
  11/23/2017 02 AM PST             4.8            128         0              Normal
  11/23/2017 03 AM PST             4.8            128         0              Normal
  11/23/2017 04 AM PST             4.8            128         0              Normal
  11/23/2017 05 AM PST             4.8            128         0              Normal
  11/23/2017 06 AM PST             4.8            128         0              Normal
  11/23/2017 07 AM PST             4.8            128         0              Normal
  11/23/2017 08 AM PST             4.8            128         0              Normal
  11/23/2017 09 AM PST             4.8            128         0              Normal
  11/23/2017 10 AM PST             4.8            128         0              Normal
  11/23/2017 11 AM PST             4.8            128         0              Normal
  11/23/2017 12 PM PST             4.8            128         0              Normal
  11/23/2017 01 PM PST             4.8            128         0              Normal
  11/23/2017 02 PM PST             4.8            128         0              Normal
  11/23/2017 03 PM PST             4.8            128         0              Normal
  11/23/2017 04 PM PST             4.8            129         +              Normal
  11/23/2017 05 PM PST             4.8            129         0              Normal
  11/23/2017 06 PM PST             4.8            129         0              Normal
  11/23/2017 07 PM PST             4.8            129         0              Normal
  11/23/2017 08 PM PST             4.8            129         0              Normal
  11/23/2017 09 PM PST             4.8            129         0              Normal
  11/23/2017 10 PM PST             4.8            129         0              Normal
  11/23/2017 11 PM PST             4.8            129         0              Normal
  11/24/2017 12 AM PST             4.8            129         0              Normal
  11/24/2017 01 AM PST             4.8            129         0              Normal
  11/24/2017 02 AM PST             4.8            129         0              Normal
  11/24/2017 03 AM PST             4.8            129         0              Normal
  11/24/2017 04 AM PST             4.8            129         0              Normal
  11/24/2017 05 AM PST             4.8            129         0              Normal
  11/24/2017 06 AM PST             4.8            129         0              Normal
  11/24/2017 07 AM PST             4.8            129         0              Normal
  11/24/2017 08 AM PST             4.8            129         0              Normal
  11/24/2017 09 AM PST             4.8            129         0              Normal
  11/24/2017 10 AM PST             4.8            129         0              Normal
  11/24/2017 11 AM PST             4.8            129         0              Normal
  11/24/2017 12 PM PST             4.8            129         0              Normal
  11/24/2017 01 PM PST             4.8            129         0              Normal
  11/24/2017 02 PM PST             4.8            129         0              Normal
  11/24/2017 03 PM PST             4.8            129         0              Normal
  11/24/2017 04 PM PST             4.8            130         +              Normal
  11/24/2017 05 PM PST             4.8            130         0              Normal
  11/24/2017 06 PM PST             4.8            130         0              Normal
  11/24/2017 07 PM PST             4.8            130         0              Normal
  11/24/2017 08 PM PST             4.8            130         0              Normal
  11/24/2017 09 PM PST             4.8            130         0              Normal
  11/24/2017 10 PM PST             4.8            130         0              Normal
  11/24/2017 11 PM PST             4.8            130         0              Normal
  11/25/2017 12 AM PST             4.8            130         0              Normal
  11/25/2017 01 AM PST             4.8            130         0              Normal
  11/25/2017 02 AM PST             4.8            130         0              Normal
  11/25/2017 03 AM PST             4.8            130         0              Normal
  11/25/2017 04 AM PST             4.8            130         0              Normal
  11/25/2017 05 AM PST             4.8            130         0              Normal
  11/25/2017 06 AM PST             4.8            130         0              Normal
  11/25/2017 07 AM PST             4.8            130         0              Normal
  11/25/2017 08 AM PST             4.8            130         0              Normal
  11/25/2017 09 AM PST             4.8            130         0              Normal
  11/25/2017 10 AM PST             4.8            130         0              Normal
  11/25/2017 11 AM PST             4.8            130         0              Normal
  11/25/2017 12 PM PST             4.8            130         0              Normal
  11/25/2017 01 PM PST             4.8            130         0              Normal
  11/25/2017 02 PM PST             4.8            130         0              Normal
  11/25/2017 03 PM PST             4.8            130         0              Normal
  11/25/2017 04 PM PST             4.8            130         0              Normal
  11/25/2017 05 PM PST             4.9            131         +              Normal
  11/25/2017 06 PM PST             4.9            131         0              Normal
  11/25/2017 07 PM PST             4.9            131         0              Normal
  11/25/2017 08 PM PST             4.9            131         0              Normal
  11/25/2017 09 PM PST             4.9            131         0              Normal
  11/25/2017 10 PM PST             4.9            131         0              Normal
  11/25/2017 11 PM PST             4.9            131         0              Normal
  11/26/2017 12 AM PST             4.9            131         0              Normal
  11/26/2017 01 AM PST             4.9            131         0              Normal
  11/26/2017 02 AM PST             4.9            131         0              Normal
  11/26/2017 03 AM PST             4.9            131         0              Normal
  11/26/2017 04 AM PST             4.9            131         0              Normal
  11/26/2017 05 AM PST             4.9            131         0              Normal
  11/26/2017 06 AM PST             4.9            131         0              Normal
  11/26/2017 07 AM PST             4.9            131         0              Normal
  11/26/2017 08 AM PST             4.9            131         0              Normal
  11/26/2017 09 AM PST             4.9            131         0              Normal
  11/26/2017 10 AM PST             4.9            131         0              Normal
  11/26/2017 11 AM PST             4.9            131         0              Normal
  11/26/2017 12 PM PST             4.9            132         +              Normal
  11/26/2017 01 PM PST             4.9            132         0              Normal
  11/26/2017 02 PM PST             4.9            132         0              Normal
  11/26/2017 03 PM PST             4.9            132         0              Normal
  11/26/2017 04 PM PST             4.9            132         0              Normal
  11/26/2017 05 PM PST             4.9            132         0              Normal
  11/26/2017 06 PM PST             4.9            132         0              Normal
  11/26/2017 07 PM PST             4.9            133         +              Normal
  11/26/2017 08 PM PST             4.9            133         0              Normal
  11/26/2017 09 PM PST             4.9            133         0              Normal
  11/26/2017 10 PM PST             4.9            133         0              Normal
  11/26/2017 11 PM PST             4.9            134         +              Normal
  11/27/2017 12 AM PST             4.9            134         0              Normal
  11/27/2017 01 AM PST             4.9            134         0              Normal
  11/27/2017 02 AM PST             4.9            135         +              Normal
  11/27/2017 03 AM PST             4.9            135         0              Normal
  11/27/2017 04 AM PST             4.9            135         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.