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

 | 

WALKER RIVER - MASON AT SNYDER LANE (MASN2)
Latitude: 38.92º NLongitude: 119.19º WElevation: 4420 Feet
Location: Lyon County in NevadaRiver Group: Eastern Sierra
Issuance Time: May 16 2022 at 7:39 AM PDTNext Issuance: May 17 2022 at 9:00 AM PDT
Monitor Stage: 9.0 FeetFlood Stage: 9.8 Feet

SPECIAL NOTE:Significant losses can occur in the Mason Valley upstream of the Mason stream gage. Increased forecast uncertainty exists in the long range forecast due to these unknown losses.

# Tabular Observed and Forecast Hydrograph Information
#
# Location: Walker River - Mason at Snyder Lane (MASN2)
#
# File Generation Time:  05/16/2022 at 07:39 AM PDT
# Data Interval:  1 Hour
#
# Most Recent Date & Time of Maximum Observed:  05/11/2022 at 07:00 AM PDT
# Maximum Observed Stage:                       5.2 Feet
# Maximum Observed Flow:                        242 cfs
#
# Earliest Date & Time of Maximum Forecast:     05/17/2022 at 10:00 AM PDT
# Maximum Forecast Stage:                       4.9 Feet
# Maximum Forecast Flow:                        179 cfs
#
# OBSERVED
#
# Date & Time  (Local)    Stage (Feet)     Flow (cfs)     Trend     Observed Status
# ---------------------------------------------------------------------------------
  05/11/2022 07 AM PDT             5.2            242                        Normal
  05/11/2022 08 AM PDT             5.2            238         -              Normal
  05/11/2022 09 AM PDT             5.2            236         -              Normal
  05/11/2022 10 AM PDT             5.2            232         -              Normal
  05/11/2022 11 AM PDT             5.2            230         -              Normal
  05/11/2022 12 PM PDT             5.2            230         0              Normal
  05/11/2022 01 PM PDT             5.1            228         -              Normal
  05/11/2022 02 PM PDT             5.1            226         -              Normal
  05/11/2022 03 PM PDT             5.1            224         -              Normal
  05/11/2022 04 PM PDT             5.1            224         0              Normal
  05/11/2022 05 PM PDT             5.1            222         -              Normal
  05/11/2022 06 PM PDT             5.1            222         0              Normal
  05/11/2022 07 PM PDT             5.1            220         -              Normal
  05/11/2022 08 PM PDT             5.1            220         0              Normal
  05/11/2022 09 PM PDT             5.1            218         -              Normal
  05/11/2022 10 PM PDT             5.1            217         -              Normal
  05/11/2022 11 PM PDT             5.1            217         0              Normal
  05/12/2022 12 AM PDT             5.1            215         -              Normal
  05/12/2022 01 AM PDT             5.1            215         0              Normal
  05/12/2022 02 AM PDT             5.1            213         -              Normal
  05/12/2022 03 AM PDT             5.0            211         -              Normal
  05/12/2022 04 AM PDT             5.0            209         -              Normal
  05/12/2022 05 AM PDT             5.0            205         -              Normal
  05/12/2022 06 AM PDT             5.0            201         -              Normal
  05/12/2022 07 AM PDT             5.0            196         -              Normal
  05/12/2022 08 AM PDT             5.0            192         -              Normal
  05/12/2022 09 AM PDT             5.0            194         +              Normal
  05/12/2022 10 AM PDT             5.0            192         -              Normal
  05/12/2022 11 AM PDT             4.9            188         -              Normal
  05/12/2022 12 PM PDT             4.9            188         0              Normal
  05/12/2022 01 PM PDT             5.0            194         +              Normal
  05/12/2022 02 PM PDT             5.0            197         +              Normal
  05/12/2022 03 PM PDT             5.0            205         +              Normal
  05/12/2022 04 PM PDT             5.0            207         +              Normal
  05/12/2022 05 PM PDT             5.0            209         +              Normal
  05/12/2022 06 PM PDT             5.0            209         0              Normal
  05/12/2022 07 PM PDT             5.0            209         0              Normal
  05/12/2022 08 PM PDT             5.0            205         -              Normal
  05/12/2022 09 PM PDT             5.0            207         +              Normal
  05/12/2022 10 PM PDT             5.0            205         -              Normal
  05/12/2022 11 PM PDT             5.0            207         +              Normal
  05/13/2022 12 AM PDT             5.0            207         0              Normal
  05/13/2022 01 AM PDT             5.0            209         +              Normal
  05/13/2022 02 AM PDT             5.0            207         -              Normal
  05/13/2022 03 AM PDT             5.0            209         +              Normal
  05/13/2022 04 AM PDT             5.0            209         0              Normal
  05/13/2022 05 AM PDT             5.0            209         0              Normal
  05/13/2022 06 AM PDT             5.0            209         0              Normal
  05/13/2022 07 AM PDT             5.0            209         0              Normal
  05/13/2022 08 AM PDT             5.0            209         0              Normal
  05/13/2022 09 AM PDT             5.0            211         +              Normal
  05/13/2022 10 AM PDT             5.1            215         +              Normal
  05/13/2022 11 AM PDT             5.1            213         -              Normal
  05/13/2022 12 PM PDT             5.0            211         -              Normal
  05/13/2022 01 PM PDT             5.1            215         +              Normal
  05/13/2022 02 PM PDT             5.1            213         -              Normal
  05/13/2022 03 PM PDT             5.1            215         +              Normal
  05/13/2022 04 PM PDT             5.1            217         +              Normal
  05/13/2022 05 PM PDT             5.1            217         0              Normal
  05/13/2022 06 PM PDT             5.1            215         -              Normal
  05/13/2022 07 PM PDT             5.1            215         0              Normal
  05/13/2022 08 PM PDT             5.1            213         -              Normal
  05/13/2022 09 PM PDT             5.1            213         0              Normal
  05/13/2022 10 PM PDT             5.1            213         0              Normal
  05/13/2022 11 PM PDT             5.1            213         0              Normal
  05/14/2022 12 AM PDT             5.0            211         -              Normal
  05/14/2022 01 AM PDT             5.0            209         -              Normal
  05/14/2022 02 AM PDT             5.0            209         0              Normal
  05/14/2022 03 AM PDT             5.0            209         0              Normal
  05/14/2022 04 AM PDT             5.0            209         0              Normal
  05/14/2022 05 AM PDT             5.0            209         0              Normal
  05/14/2022 06 AM PDT             5.0            209         0              Normal
  05/14/2022 07 AM PDT             5.0            209         0              Normal
  05/14/2022 08 AM PDT             5.0            209         0              Normal
  05/14/2022 09 AM PDT             5.0            209         0              Normal
  05/14/2022 10 AM PDT             5.0            207         -              Normal
  05/14/2022 11 AM PDT             5.0            209         +              Normal
  05/14/2022 12 PM PDT             5.0            211         +              Normal
  05/14/2022 01 PM PDT             5.0            211         0              Normal
  05/14/2022 02 PM PDT             5.0            211         0              Normal
  05/14/2022 03 PM PDT             5.1            213         +              Normal
  05/14/2022 04 PM PDT             5.0            211         -              Normal
  05/14/2022 05 PM PDT             5.0            209         -              Normal
  05/14/2022 06 PM PDT             5.0            209         0              Normal
  05/14/2022 07 PM PDT             5.0            207         -              Normal
  05/14/2022 08 PM PDT             5.0            209         +              Normal
  05/14/2022 09 PM PDT             5.0            205         -              Normal
  05/14/2022 10 PM PDT             5.0            207         +              Normal
  05/14/2022 11 PM PDT             5.0            205         -              Normal
  05/15/2022 12 AM PDT             5.0            205         0              Normal
  05/15/2022 01 AM PDT             5.0            205         0              Normal
  05/15/2022 02 AM PDT             5.0            203         -              Normal
  05/15/2022 03 AM PDT             5.0            203         0              Normal
  05/15/2022 04 AM PDT             5.0            203         0              Normal
  05/15/2022 05 AM PDT             5.0            199         -              Normal
  05/15/2022 06 AM PDT             5.0            199         0              Normal
  05/15/2022 07 AM PDT             5.0            194         -              Normal
  05/15/2022 08 AM PDT             5.0            194         0              Normal
  05/15/2022 09 AM PDT             4.9            190         -              Normal
  05/15/2022 10 AM PDT             4.9            188         -              Normal
  05/15/2022 11 AM PDT             4.9            186         -              Normal
  05/15/2022 12 PM PDT             4.9            186         0              Normal
  05/15/2022 01 PM PDT             4.9            185         -              Normal
  05/15/2022 02 PM PDT             4.9            185         0              Normal
  05/15/2022 03 PM PDT             4.9            183         -              Normal
  05/15/2022 04 PM PDT             4.9            183         0              Normal
  05/15/2022 05 PM PDT             4.9            181         -              Normal
  05/15/2022 06 PM PDT             4.9            181         0              Normal
  05/15/2022 07 PM PDT             4.9            181         0              Normal
  05/15/2022 08 PM PDT             4.9            181         0              Normal
  05/15/2022 09 PM PDT             4.9            179         -              Normal
  05/15/2022 10 PM PDT             4.9            179         0              Normal
  05/15/2022 11 PM PDT             4.9            181         +              Normal
  05/16/2022 12 AM PDT             4.9            179         -              Normal
  05/16/2022 01 AM PDT             4.9            179         0              Normal
  05/16/2022 02 AM PDT             4.9            179         0              Normal
  05/16/2022 03 AM PDT             4.9            177         -              Normal
  05/16/2022 04 AM PDT             4.9            179         +              Normal
  05/16/2022 05 AM PDT             4.9            177         -              Normal
  05/16/2022 06 AM PDT             4.9            177         0              Normal
  05/16/2022 07 AM PDT             4.9            177         0              Normal
#
# FORECAST
#
# Date & Time  (Local)    Stage (Feet)     Flow (cfs)     Trend     Forecast Status
# ---------------------------------------------------------------------------------
  05/16/2022 08 AM PDT             4.9            175                        Normal
  05/16/2022 09 AM PDT             4.9            175         0              Normal
  05/16/2022 10 AM PDT             4.9            175         0              Normal
  05/16/2022 11 AM PDT             4.8            174         -              Normal
  05/16/2022 12 PM PDT             4.8            174         0              Normal
  05/16/2022 01 PM PDT             4.8            174         0              Normal
  05/16/2022 02 PM PDT             4.8            174         0              Normal
  05/16/2022 03 PM PDT             4.8            172         -              Normal
  05/16/2022 04 PM PDT             4.8            172         0              Normal
  05/16/2022 05 PM PDT             4.8            172         0              Normal
  05/16/2022 06 PM PDT             4.8            174         +              Normal
  05/16/2022 07 PM PDT             4.8            172         -              Normal
  05/16/2022 08 PM PDT             4.8            172         0              Normal
  05/16/2022 09 PM PDT             4.8            172         0              Normal
  05/16/2022 10 PM PDT             4.8            172         0              Normal
  05/16/2022 11 PM PDT             4.8            172         0              Normal
  05/17/2022 12 AM PDT             4.8            172         0              Normal
  05/17/2022 01 AM PDT             4.8            174         +              Normal
  05/17/2022 02 AM PDT             4.8            174         0              Normal
  05/17/2022 03 AM PDT             4.8            174         0              Normal
  05/17/2022 04 AM PDT             4.9            175         +              Normal
  05/17/2022 05 AM PDT             4.9            175         0              Normal
  05/17/2022 06 AM PDT             4.9            175         0              Normal
  05/17/2022 07 AM PDT             4.9            177         +              Normal
  05/17/2022 08 AM PDT             4.9            177         0              Normal
  05/17/2022 09 AM PDT             4.9            177         0              Normal
  05/17/2022 10 AM PDT             4.9            179         +              Normal
  05/17/2022 11 AM PDT             4.9            179         0              Normal
  05/17/2022 12 PM PDT             4.9            179         0              Normal
  05/17/2022 01 PM PDT             4.9            179         0              Normal
  05/17/2022 02 PM PDT             4.9            179         0              Normal
  05/17/2022 03 PM PDT             4.9            179         0              Normal
  05/17/2022 04 PM PDT             4.9            179         0              Normal
  05/17/2022 05 PM PDT             4.9            179         0              Normal
  05/17/2022 06 PM PDT             4.9            179         0              Normal
  05/17/2022 07 PM PDT             4.9            179         0              Normal
  05/17/2022 08 PM PDT             4.9            179         0              Normal
  05/17/2022 09 PM PDT             4.9            179         0              Normal
  05/17/2022 10 PM PDT             4.9            179         0              Normal
  05/17/2022 11 PM PDT             4.9            179         0              Normal
  05/18/2022 12 AM PDT             4.9            179         0              Normal
  05/18/2022 01 AM PDT             4.9            179         0              Normal
  05/18/2022 02 AM PDT             4.9            179         0              Normal
  05/18/2022 03 AM PDT             4.9            179         0              Normal
  05/18/2022 04 AM PDT             4.9            179         0              Normal
  05/18/2022 05 AM PDT             4.9            179         0              Normal
  05/18/2022 06 AM PDT             4.9            179         0              Normal
  05/18/2022 07 AM PDT             4.9            179         0              Normal
  05/18/2022 08 AM PDT             4.9            179         0              Normal
  05/18/2022 09 AM PDT             4.9            179         0              Normal
  05/18/2022 10 AM PDT             4.9            179         0              Normal
  05/18/2022 11 AM PDT             4.9            179         0              Normal
  05/18/2022 12 PM PDT             4.9            179         0              Normal
  05/18/2022 01 PM PDT             4.9            179         0              Normal
  05/18/2022 02 PM PDT             4.9            179         0              Normal
  05/18/2022 03 PM PDT             4.9            177         -              Normal
  05/18/2022 04 PM PDT             4.9            177         0              Normal
  05/18/2022 05 PM PDT             4.9            177         0              Normal
  05/18/2022 06 PM PDT             4.9            177         0              Normal
  05/18/2022 07 PM PDT             4.9            177         0              Normal
  05/18/2022 08 PM PDT             4.9            177         0              Normal
  05/18/2022 09 PM PDT             4.9            177         0              Normal
  05/18/2022 10 PM PDT             4.9            175         -              Normal
  05/18/2022 11 PM PDT             4.9            175         0              Normal
  05/19/2022 12 AM PDT             4.9            175         0              Normal
  05/19/2022 01 AM PDT             4.9            175         0              Normal
  05/19/2022 02 AM PDT             4.9            175         0              Normal
  05/19/2022 03 AM PDT             4.9            175         0              Normal
  05/19/2022 04 AM PDT             4.9            175         0              Normal
  05/19/2022 05 AM PDT             4.9            175         0              Normal
  05/19/2022 06 AM PDT             4.9            175         0              Normal
  05/19/2022 07 AM PDT             4.9            175         0              Normal
  05/19/2022 08 AM PDT             4.9            175         0              Normal
  05/19/2022 09 AM PDT             4.9            175         0              Normal
  05/19/2022 10 AM PDT             4.9            175         0              Normal
  05/19/2022 11 AM PDT             4.9            175         0              Normal
  05/19/2022 12 PM PDT             4.9            175         0              Normal
  05/19/2022 01 PM PDT             4.8            174         -              Normal
  05/19/2022 02 PM PDT             4.8            174         0              Normal
  05/19/2022 03 PM PDT             4.8            174         0              Normal
  05/19/2022 04 PM PDT             4.8            174         0              Normal
  05/19/2022 05 PM PDT             4.8            174         0              Normal
  05/19/2022 06 PM PDT             4.8            174         0              Normal
  05/19/2022 07 PM PDT             4.8            174         0              Normal
  05/19/2022 08 PM PDT             4.8            174         0              Normal
  05/19/2022 09 PM PDT             4.8            174         0              Normal
  05/19/2022 10 PM PDT             4.8            172         -              Normal
  05/19/2022 11 PM PDT             4.8            172         0              Normal
  05/20/2022 12 AM PDT             4.8            172         0              Normal
  05/20/2022 01 AM PDT             4.8            172         0              Normal
  05/20/2022 02 AM PDT             4.8            172         0              Normal
  05/20/2022 03 AM PDT             4.8            172         0              Normal
  05/20/2022 04 AM PDT             4.8            172         0              Normal
  05/20/2022 05 AM PDT             4.8            172         0              Normal
  05/20/2022 06 AM PDT             4.8            172         0              Normal
  05/20/2022 07 AM PDT             4.8            172         0              Normal
  05/20/2022 08 AM PDT             4.8            172         0              Normal
  05/20/2022 09 AM PDT             4.8            172         0              Normal
  05/20/2022 10 AM PDT             4.8            172         0              Normal
  05/20/2022 11 AM PDT             4.8            172         0              Normal
  05/20/2022 12 PM PDT             4.8            172         0              Normal
  05/20/2022 01 PM PDT             4.8            172         0              Normal
  05/20/2022 02 PM PDT             4.8            172         0              Normal
  05/20/2022 03 PM PDT             4.8            172         0              Normal
  05/20/2022 04 PM PDT             4.8            172         0              Normal
  05/20/2022 05 PM PDT             4.8            170         -              Normal
  05/20/2022 06 PM PDT             4.8            172         +              Normal
  05/20/2022 07 PM PDT             4.8            172         0              Normal
  05/20/2022 08 PM PDT             4.8            170         -              Normal
  05/20/2022 09 PM PDT             4.8            170         0              Normal
  05/20/2022 10 PM PDT             4.8            170         0              Normal
  05/20/2022 11 PM PDT             4.8            170         0              Normal
  05/21/2022 12 AM PDT             4.8            170         0              Normal
  05/21/2022 01 AM PDT             4.8            168         -              Normal
  05/21/2022 02 AM PDT             4.8            168         0              Normal
  05/21/2022 03 AM PDT             4.8            168         0              Normal
  05/21/2022 04 AM PDT             4.8            168         0              Normal
  05/21/2022 05 AM PDT             4.8            168         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 flow.
# NOTE 4: Maximum Values are determined using unrounded stage and flow.