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 AT SNYDER LANE (MASN2)
Latitude: 38.92º NLongitude: 119.19º WElevation: 4420 Feet
Location: Lyon County in NevadaBulletin Group: Eastern SierraRiver Group: Eastern Sierra
Issuance Time: May 24 2024 at 7:59 AM PDTNext Issuance: May 25 2024 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:  05/24/2024 at 07:59 AM PDT
# Data Interval:  1 Hour
#
# Most Recent Date & Time of Maximum Observed:  05/19/2024 at 03:00 PM PDT
# Maximum Observed Stage:                       5.49 Feet
# Maximum Observed Flow:                        503 cfs
#
# Earliest Date & Time of Maximum Forecast:     05/29/2024 at 05:00 AM PDT
# Maximum Forecast Stage:                       5.25 Feet
# Maximum Forecast Flow:                        426 cfs
#
# OBSERVED
#
# Date & Time  (Local)    Stage (Feet)     Flow (cfs)     Trend     Observed Status
# ---------------------------------------------------------------------------------
  05/19/2024 07 AM PDT            5.47            496                        Normal
  05/19/2024 08 AM PDT            5.47            496         0              Normal
  05/19/2024 09 AM PDT            5.47            496         0              Normal
  05/19/2024 10 AM PDT            5.47            496         0              Normal
  05/19/2024 11 AM PDT            5.48            499         +              Normal
  05/19/2024 12 PM PDT            5.48            499         0              Normal
  05/19/2024 01 PM PDT            5.49            503         +              Normal
  05/19/2024 02 PM PDT            5.48            499         -              Normal
  05/19/2024 03 PM PDT            5.49            503         +              Normal
  05/19/2024 04 PM PDT            5.47            496         -              Normal
  05/19/2024 05 PM PDT            5.48            499         +              Normal
  05/19/2024 06 PM PDT            5.48            499         0              Normal
  05/19/2024 07 PM PDT            5.48            499         0              Normal
  05/19/2024 08 PM PDT            5.47            496         -              Normal
  05/19/2024 09 PM PDT            5.47            496         0              Normal
  05/19/2024 10 PM PDT            5.46            493         -              Normal
  05/19/2024 11 PM PDT            5.47            496         +              Normal
  05/20/2024 12 AM PDT            5.46            493         -              Normal
  05/20/2024 01 AM PDT            5.46            493         0              Normal
  05/20/2024 02 AM PDT            5.46            493         0              Normal
  05/20/2024 03 AM PDT            5.45            490         -              Normal
  05/20/2024 04 AM PDT            5.46            493         +              Normal
  05/20/2024 05 AM PDT            5.47            496         +              Normal
  05/20/2024 06 AM PDT            5.47            496         0              Normal
  05/20/2024 07 AM PDT            5.48            499         +              Normal
  05/20/2024 08 AM PDT            5.48            499         0              Normal
  05/20/2024 09 AM PDT            5.46            493         -              Normal
  05/20/2024 10 AM PDT            5.48            499         +              Normal
  05/20/2024 11 AM PDT            5.48            499         0              Normal
  05/20/2024 12 PM PDT            5.47            496         -              Normal
  05/20/2024 01 PM PDT            5.48            499         +              Normal
  05/20/2024 02 PM PDT            5.48            499         0              Normal
  05/20/2024 03 PM PDT            5.47            496         -              Normal
  05/20/2024 04 PM PDT            5.48            499         +              Normal
  05/20/2024 05 PM PDT            5.48            499         0              Normal
  05/20/2024 06 PM PDT            5.47            496         -              Normal
  05/20/2024 07 PM PDT            5.46            493         -              Normal
  05/20/2024 08 PM PDT            5.46            493         0              Normal
  05/20/2024 09 PM PDT            5.45            490         -              Normal
  05/20/2024 10 PM PDT            5.46            493         +              Normal
  05/20/2024 11 PM PDT            5.45            490         -              Normal
  05/21/2024 12 AM PDT            5.45            490         0              Normal
  05/21/2024 01 AM PDT            5.44            486         -              Normal
  05/21/2024 02 AM PDT            5.44            486         0              Normal
  05/21/2024 03 AM PDT            5.42            480         -              Normal
  05/21/2024 04 AM PDT            5.42            480         0              Normal
  05/21/2024 05 AM PDT            5.40            473         -              Normal
  05/21/2024 06 AM PDT            5.39            470         -              Normal
  05/21/2024 07 AM PDT            5.38            467         -              Normal
  05/21/2024 08 AM PDT            5.38            467         0              Normal
  05/21/2024 09 AM PDT            5.37            464         -              Normal
  05/21/2024 10 AM PDT            5.38            467         +              Normal
  05/21/2024 11 AM PDT            5.38            467         0              Normal
  05/21/2024 12 PM PDT            5.38            467         0              Normal
  05/21/2024 01 PM PDT            5.38            467         0              Normal
  05/21/2024 02 PM PDT            5.39            470         +              Normal
  05/21/2024 03 PM PDT            5.39            470         0              Normal
  05/21/2024 04 PM PDT            5.39            470         0              Normal
  05/21/2024 05 PM PDT            5.39            470         0              Normal
  05/21/2024 06 PM PDT            5.38            467         -              Normal
  05/21/2024 07 PM PDT            5.39            470         +              Normal
  05/21/2024 08 PM PDT            5.37            464         -              Normal
  05/21/2024 09 PM PDT            5.38            467         +              Normal
  05/21/2024 10 PM PDT            5.37            464         -              Normal
  05/21/2024 11 PM PDT            5.36            461         -              Normal
  05/22/2024 12 AM PDT            5.36            461         0              Normal
  05/22/2024 01 AM PDT            5.36            461         0              Normal
  05/22/2024 02 AM PDT            5.35            457         -              Normal
  05/22/2024 03 AM PDT            5.36            461         +              Normal
  05/22/2024 04 AM PDT            5.36            461         0              Normal
  05/22/2024 05 AM PDT            5.36            461         0              Normal
  05/22/2024 06 AM PDT            5.35            457         -              Normal
  05/22/2024 07 AM PDT            5.35            457         0              Normal
  05/22/2024 08 AM PDT            5.36            461         +              Normal
  05/22/2024 09 AM PDT            5.37            464         +              Normal
  05/22/2024 10 AM PDT            5.35            457         -              Normal
  05/22/2024 11 AM PDT            5.34            454         -              Normal
  05/22/2024 12 PM PDT            5.33            451         -              Normal
  05/22/2024 01 PM PDT            5.33            451         0              Normal
  05/22/2024 02 PM PDT            5.34            454         +              Normal
  05/22/2024 03 PM PDT            5.34            454         0              Normal
  05/22/2024 04 PM PDT            5.33            451         -              Normal
  05/22/2024 05 PM PDT            5.32            448         -              Normal
  05/22/2024 06 PM PDT            5.31            445         -              Normal
  05/22/2024 07 PM PDT            5.31            445         0              Normal
  05/22/2024 08 PM PDT            5.30            442         -              Normal
  05/22/2024 09 PM PDT            5.30            442         0              Normal
  05/22/2024 10 PM PDT            5.30            442         0              Normal
  05/22/2024 11 PM PDT            5.28            435         -              Normal
  05/23/2024 12 AM PDT            5.29            439         +              Normal
  05/23/2024 01 AM PDT            5.28            435         -              Normal
  05/23/2024 02 AM PDT            5.29            439         +              Normal
  05/23/2024 03 AM PDT            5.27            432         -              Normal
  05/23/2024 04 AM PDT            5.28            435         +              Normal
  05/23/2024 05 AM PDT            5.28            435         0              Normal
  05/23/2024 06 AM PDT            5.28            435         0              Normal
  05/23/2024 07 AM PDT            5.27            432         -              Normal
  05/23/2024 08 AM PDT            5.28            435         +              Normal
  05/23/2024 09 AM PDT            5.28            435         0              Normal
  05/23/2024 10 AM PDT            5.28            435         0              Normal
  05/23/2024 11 AM PDT            5.26            429         -              Normal
  05/23/2024 12 PM PDT            5.25            426         -              Normal
  05/23/2024 01 PM PDT            5.27            432         +              Normal
  05/23/2024 02 PM PDT            5.27            432         0              Normal
  05/23/2024 03 PM PDT            5.26            429         -              Normal
  05/23/2024 04 PM PDT            5.26            429         0              Normal
  05/23/2024 05 PM PDT            5.25            426         -              Normal
  05/23/2024 06 PM PDT            5.26            429         +              Normal
  05/23/2024 07 PM PDT            5.25            426         -              Normal
  05/23/2024 08 PM PDT            5.24            423         -              Normal
  05/23/2024 09 PM PDT            5.25            426         +              Normal
  05/23/2024 10 PM PDT            5.25            426         0              Normal
  05/23/2024 11 PM PDT            5.24            423         -              Normal
  05/24/2024 12 AM PDT            5.24            423         0              Normal
  05/24/2024 01 AM PDT            5.23            420         -              Normal
  05/24/2024 02 AM PDT            5.23            420         0              Normal
  05/24/2024 03 AM PDT            5.23            420         0              Normal
  05/24/2024 04 AM PDT            5.23            420         0              Normal
  05/24/2024 05 AM PDT            5.23            420         0              Normal
  05/24/2024 06 AM PDT            5.23            420         0              Normal
  05/24/2024 07 AM PDT            5.23            420         0              Normal
#
# FORECAST
#
# Date & Time  (Local)    Stage (Feet)     Flow (cfs)     Trend     Forecast Status
# ---------------------------------------------------------------------------------
  05/24/2024 08 AM PDT            5.23            420                        Normal
  05/24/2024 09 AM PDT            5.23            420         0              Normal
  05/24/2024 10 AM PDT            5.23            420         0              Normal
  05/24/2024 11 AM PDT            5.23            420         0              Normal
  05/24/2024 12 PM PDT            5.23            420         0              Normal
  05/24/2024 01 PM PDT            5.23            420         0              Normal
  05/24/2024 02 PM PDT            5.23            420         0              Normal
  05/24/2024 03 PM PDT            5.23            420         0              Normal
  05/24/2024 04 PM PDT            5.23            420         0              Normal
  05/24/2024 05 PM PDT            5.23            420         0              Normal
  05/24/2024 06 PM PDT            5.23            420         0              Normal
  05/24/2024 07 PM PDT            5.22            417         -              Normal
  05/24/2024 08 PM PDT            5.22            417         0              Normal
  05/24/2024 09 PM PDT            5.22            417         0              Normal
  05/24/2024 10 PM PDT            5.22            417         0              Normal
  05/24/2024 11 PM PDT            5.22            417         0              Normal
  05/25/2024 12 AM PDT            5.22            417         0              Normal
  05/25/2024 01 AM PDT            5.22            417         0              Normal
  05/25/2024 02 AM PDT            5.22            417         0              Normal
  05/25/2024 03 AM PDT            5.23            420         +              Normal
  05/25/2024 04 AM PDT            5.23            420         0              Normal
  05/25/2024 05 AM PDT            5.23            420         0              Normal
  05/25/2024 06 AM PDT            5.23            420         0              Normal
  05/25/2024 07 AM PDT            5.23            420         0              Normal
  05/25/2024 08 AM PDT            5.23            420         0              Normal
  05/25/2024 09 AM PDT            5.23            420         0              Normal
  05/25/2024 10 AM PDT            5.23            420         0              Normal
  05/25/2024 11 AM PDT            5.23            420         0              Normal
  05/25/2024 12 PM PDT            5.23            420         0              Normal
  05/25/2024 01 PM PDT            5.22            417         -              Normal
  05/25/2024 02 PM PDT            5.22            417         0              Normal
  05/25/2024 03 PM PDT            5.22            417         0              Normal
  05/25/2024 04 PM PDT            5.22            417         0              Normal
  05/25/2024 05 PM PDT            5.22            417         0              Normal
  05/25/2024 06 PM PDT            5.22            417         0              Normal
  05/25/2024 07 PM PDT            5.22            417         0              Normal
  05/25/2024 08 PM PDT            5.22            417         0              Normal
  05/25/2024 09 PM PDT            5.22            417         0              Normal
  05/25/2024 10 PM PDT            5.22            417         0              Normal
  05/25/2024 11 PM PDT            5.22            417         0              Normal
  05/26/2024 12 AM PDT            5.22            417         0              Normal
  05/26/2024 01 AM PDT            5.22            417         0              Normal
  05/26/2024 02 AM PDT            5.22            417         0              Normal
  05/26/2024 03 AM PDT            5.22            417         0              Normal
  05/26/2024 04 AM PDT            5.22            417         0              Normal
  05/26/2024 05 AM PDT            5.22            417         0              Normal
  05/26/2024 06 AM PDT            5.22            417         0              Normal
  05/26/2024 07 AM PDT            5.22            417         0              Normal
  05/26/2024 08 AM PDT            5.22            417         0              Normal
  05/26/2024 09 AM PDT            5.22            417         0              Normal
  05/26/2024 10 AM PDT            5.22            417         0              Normal
  05/26/2024 11 AM PDT            5.22            417         0              Normal
  05/26/2024 12 PM PDT            5.22            417         0              Normal
  05/26/2024 01 PM PDT            5.22            417         0              Normal
  05/26/2024 02 PM PDT            5.22            417         0              Normal
  05/26/2024 03 PM PDT            5.22            417         0              Normal
  05/26/2024 04 PM PDT            5.22            417         0              Normal
  05/26/2024 05 PM PDT            5.22            417         0              Normal
  05/26/2024 06 PM PDT            5.22            417         0              Normal
  05/26/2024 07 PM PDT            5.22            417         0              Normal
  05/26/2024 08 PM PDT            5.22            417         0              Normal
  05/26/2024 09 PM PDT            5.22            417         0              Normal
  05/26/2024 10 PM PDT            5.21            414         -              Normal
  05/26/2024 11 PM PDT            5.21            414         0              Normal
  05/27/2024 12 AM PDT            5.21            414         0              Normal
  05/27/2024 01 AM PDT            5.21            414         0              Normal
  05/27/2024 02 AM PDT            5.21            414         0              Normal
  05/27/2024 03 AM PDT            5.21            414         0              Normal
  05/27/2024 04 AM PDT            5.21            414         0              Normal
  05/27/2024 05 AM PDT            5.22            417         +              Normal
  05/27/2024 06 AM PDT            5.22            417         0              Normal
  05/27/2024 07 AM PDT            5.22            417         0              Normal
  05/27/2024 08 AM PDT            5.22            417         0              Normal
  05/27/2024 09 AM PDT            5.22            417         0              Normal
  05/27/2024 10 AM PDT            5.22            417         0              Normal
  05/27/2024 11 AM PDT            5.22            417         0              Normal
  05/27/2024 12 PM PDT            5.22            417         0              Normal
  05/27/2024 01 PM PDT            5.21            414         -              Normal
  05/27/2024 02 PM PDT            5.21            414         0              Normal
  05/27/2024 03 PM PDT            5.21            414         0              Normal
  05/27/2024 04 PM PDT            5.21            414         0              Normal
  05/27/2024 05 PM PDT            5.21            414         0              Normal
  05/27/2024 06 PM PDT            5.21            414         0              Normal
  05/27/2024 07 PM PDT            5.21            414         0              Normal
  05/27/2024 08 PM PDT            5.21            414         0              Normal
  05/27/2024 09 PM PDT            5.21            414         0              Normal
  05/27/2024 10 PM PDT            5.21            414         0              Normal
  05/27/2024 11 PM PDT            5.21            414         0              Normal
  05/28/2024 12 AM PDT            5.21            414         0              Normal
  05/28/2024 01 AM PDT            5.21            414         0              Normal
  05/28/2024 02 AM PDT            5.21            414         0              Normal
  05/28/2024 03 AM PDT            5.21            414         0              Normal
  05/28/2024 04 AM PDT            5.22            417         +              Normal
  05/28/2024 05 AM PDT            5.22            417         0              Normal
  05/28/2024 06 AM PDT            5.22            417         0              Normal
  05/28/2024 07 AM PDT            5.22            417         0              Normal
  05/28/2024 08 AM PDT            5.22            417         0              Normal
  05/28/2024 09 AM PDT            5.22            417         0              Normal
  05/28/2024 10 AM PDT            5.23            420         +              Normal
  05/28/2024 11 AM PDT            5.23            420         0              Normal
  05/28/2024 12 PM PDT            5.23            420         0              Normal
  05/28/2024 01 PM PDT            5.23            420         0              Normal
  05/28/2024 02 PM PDT            5.23            420         0              Normal
  05/28/2024 03 PM PDT            5.23            420         0              Normal
  05/28/2024 04 PM PDT            5.23            420         0              Normal
  05/28/2024 05 PM PDT            5.23            420         0              Normal
  05/28/2024 06 PM PDT            5.23            420         0              Normal
  05/28/2024 07 PM PDT            5.23            420         0              Normal
  05/28/2024 08 PM PDT            5.23            420         0              Normal
  05/28/2024 09 PM PDT            5.23            420         0              Normal
  05/28/2024 10 PM PDT            5.23            420         0              Normal
  05/28/2024 11 PM PDT            5.23            420         0              Normal
  05/29/2024 12 AM PDT            5.23            420         0              Normal
  05/29/2024 01 AM PDT            5.24            423         +              Normal
  05/29/2024 02 AM PDT            5.24            423         0              Normal
  05/29/2024 03 AM PDT            5.24            423         0              Normal
  05/29/2024 04 AM PDT            5.24            423         0              Normal
  05/29/2024 05 AM PDT            5.25            426         +              Normal
#
# NOTE 1: Stages are rounded to the nearest hundredth (.01) 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.