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: Sep 26 2017 at 7:11 AM PDTNext Issuance: Sep 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:  09/26/2017  07:11 AM PDT
# Interval:  1 Hour
#
# Most Recent Date & Time of Maximum Observed:  09/25/2017 04 AM PDT
# Maximum Observed Stage:                       5.8 Feet
# Maximum Observed Flow:                        353 cfs
#
# Earliest Date & Time of Maximum Forecast:     09/26/2017 08 AM PDT
# Maximum Forecast Stage:                       5.7 Feet
# Maximum Forecast Flow:                        321 cfs
#
# OBSERVED
#
# Date & Time  (Local)    Stage (Feet)     Flow (cfs)     Trend     Observed Status
# ---------------------------------------------------------------------------------
  09/21/2017 07 AM PDT             5.6            305                        Normal
  09/21/2017 08 AM PDT             5.6            316         +              Normal
  09/21/2017 09 AM PDT             5.6            305         -              Normal
  09/21/2017 10 AM PDT             5.6            309         +              Normal
  09/21/2017 11 AM PDT             5.6            307         -              Normal
  09/21/2017 12 PM PDT             5.6            314         +              Normal
  09/21/2017 01 PM PDT             5.6            305         -              Normal
  09/21/2017 02 PM PDT             5.6            305         0              Normal
  09/21/2017 03 PM PDT             5.6            301         -              Normal
  09/21/2017 04 PM PDT             5.6            305         +              Normal
  09/21/2017 05 PM PDT             5.7            321         +              Normal
  09/21/2017 06 PM PDT             5.6            305         -              Normal
  09/21/2017 07 PM PDT             5.6            316         +              Normal
  09/21/2017 08 PM PDT             5.6            309         -              Normal
  09/21/2017 09 PM PDT             5.6            301         -              Normal
  09/21/2017 10 PM PDT             5.6            309         +              Normal
  09/21/2017 11 PM PDT             5.6            301         -              Normal
  09/22/2017 12 AM PDT             5.6            301         0              Normal
  09/22/2017 01 AM PDT             5.6            312         +              Normal
  09/22/2017 02 AM PDT             5.6            296         -              Normal
  09/22/2017 03 AM PDT             5.6            309         +              Normal
  09/22/2017 04 AM PDT             5.6            303         -              Normal
  09/22/2017 05 AM PDT             5.6            296         -              Normal
  09/22/2017 06 AM PDT             5.6            303         +              Normal
  09/22/2017 07 AM PDT             5.6            307         +              Normal
  09/22/2017 08 AM PDT             5.6            303         -              Normal
  09/22/2017 09 AM PDT             5.6            305         +              Normal
  09/22/2017 10 AM PDT             5.6            309         +              Normal
  09/22/2017 11 AM PDT             5.7            318         +              Normal
  09/22/2017 12 PM PDT             5.6            307         -              Normal
  09/22/2017 01 PM PDT             5.6            312         +              Normal
  09/22/2017 02 PM PDT             5.7            321         +              Normal
  09/22/2017 03 PM PDT             5.6            309         -              Normal
  09/22/2017 04 PM PDT             5.6            307         -              Normal
  09/22/2017 05 PM PDT             5.6            303         -              Normal
  09/22/2017 06 PM PDT             5.6            307         +              Normal
  09/22/2017 07 PM PDT             5.6            309         +              Normal
  09/22/2017 08 PM PDT             5.6            303         -              Normal
  09/22/2017 09 PM PDT             5.6            303         0              Normal
  09/22/2017 10 PM PDT             5.6            309         +              Normal
  09/22/2017 11 PM PDT             5.6            312         +              Normal
  09/23/2017 12 AM PDT             5.6            312         0              Normal
  09/23/2017 01 AM PDT             5.6            314         +              Normal
  09/23/2017 02 AM PDT             5.7            321         +              Normal
  09/23/2017 03 AM PDT             5.6            316         -              Normal
  09/23/2017 04 AM PDT             5.7            323         +              Normal
  09/23/2017 05 AM PDT             5.7            323         0              Normal
  09/23/2017 06 AM PDT             5.7            325         +              Normal
  09/23/2017 07 AM PDT             5.7            323         -              Normal
  09/23/2017 08 AM PDT             5.7            321         -              Normal
  09/23/2017 09 AM PDT             5.7            325         +              Normal
  09/23/2017 10 AM PDT             5.7            337         +              Normal
  09/23/2017 11 AM PDT             5.7            335         -              Normal
  09/23/2017 12 PM PDT             5.8            342         +              Normal
  09/23/2017 01 PM PDT             5.7            335         -              Normal
  09/23/2017 02 PM PDT             5.7            330         -              Normal
  09/23/2017 03 PM PDT             5.7            323         -              Normal
  09/23/2017 04 PM PDT             5.7            332         +              Normal
  09/23/2017 05 PM PDT             5.7            335         +              Normal
  09/23/2017 06 PM PDT             5.7            328         -              Normal
  09/23/2017 07 PM PDT             5.7            335         +              Normal
  09/23/2017 08 PM PDT             5.7            321         -              Normal
  09/23/2017 09 PM PDT             5.7            335         +              Normal
  09/23/2017 10 PM PDT             5.7            330         -              Normal
  09/23/2017 11 PM PDT             5.7            328         -              Normal
  09/24/2017 12 AM PDT             5.7            323         -              Normal
  09/24/2017 01 AM PDT             5.7            321         -              Normal
  09/24/2017 02 AM PDT             5.7            321         0              Normal
  09/24/2017 03 AM PDT             5.7            323         +              Normal
  09/24/2017 04 AM PDT             5.7            332         +              Normal
  09/24/2017 05 AM PDT             5.7            325         -              Normal
  09/24/2017 06 AM PDT             5.7            321         -              Normal
  09/24/2017 07 AM PDT             5.7            321         0              Normal
  09/24/2017 08 AM PDT             5.7            325         +              Normal
  09/24/2017 09 AM PDT             5.7            323         -              Normal
  09/24/2017 10 AM PDT             5.7            325         +              Normal
  09/24/2017 11 AM PDT             5.7            328         +              Normal
  09/24/2017 12 PM PDT             5.7            332         +              Normal
  09/24/2017 01 PM PDT             5.7            328         -              Normal
  09/24/2017 02 PM PDT             5.7            325         -              Normal
  09/24/2017 03 PM PDT             5.7            325         0              Normal
  09/24/2017 04 PM PDT             5.7            325         0              Normal
  09/24/2017 05 PM PDT             5.7            328         +              Normal
  09/24/2017 06 PM PDT             5.8            340         +              Normal
  09/24/2017 07 PM PDT             5.7            330         -              Normal
  09/24/2017 08 PM PDT             5.7            335         +              Normal
  09/24/2017 09 PM PDT             5.8            340         +              Normal
  09/24/2017 10 PM PDT             5.8            340         0              Normal
  09/24/2017 11 PM PDT             5.7            328         -              Normal
  09/25/2017 12 AM PDT             5.7            335         +              Normal
  09/25/2017 01 AM PDT             5.8            340         +              Normal
  09/25/2017 02 AM PDT             5.7            337         -              Normal
  09/25/2017 03 AM PDT             5.7            337         0              Normal
  09/25/2017 04 AM PDT             5.8            353         +              Normal
  09/25/2017 05 AM PDT             5.8            348         -              Normal
  09/25/2017 06 AM PDT             5.8            351         +              Normal
  09/25/2017 07 AM PDT             5.8            340         -              Normal
  09/25/2017 08 AM PDT             5.7            332         -              Normal
  09/25/2017 09 AM PDT             5.7            335         +              Normal
  09/25/2017 10 AM PDT             5.7            321         -              Normal
  09/25/2017 11 AM PDT             5.7            330         +              Normal
  09/25/2017 12 PM PDT             5.7            337         +              Normal
  09/25/2017 01 PM PDT             5.7            332         -              Normal
  09/25/2017 02 PM PDT             5.7            332         0              Normal
  09/25/2017 03 PM PDT             5.7            330         -              Normal
  09/25/2017 04 PM PDT             5.7            328         -              Normal
  09/25/2017 05 PM PDT             5.7            328         0              Normal
  09/25/2017 06 PM PDT             5.7            335         +              Normal
  09/25/2017 07 PM PDT             5.8            342         +              Normal
  09/25/2017 08 PM PDT             5.7            335         -              Normal
  09/25/2017 09 PM PDT             5.7            323         -              Normal
  09/25/2017 10 PM PDT             5.8            340         +              Normal
  09/25/2017 11 PM PDT             5.7            325         -              Normal
  09/26/2017 12 AM PDT             5.7            328         +              Normal
  09/26/2017 01 AM PDT             5.7            330         +              Normal
  09/26/2017 02 AM PDT             5.7            335         +              Normal
  09/26/2017 03 AM PDT             5.7            328         -              Normal
  09/26/2017 04 AM PDT             5.7            325         -              Normal
  09/26/2017 05 AM PDT             5.7            323         -              Normal
  09/26/2017 06 AM PDT             5.7            323         0              Normal
  09/26/2017 07 AM PDT             5.7            322         -              Normal
#
# FORECAST
#
# Date & Time  (Local)    Stage (Feet)     Flow (cfs)     Trend     Forecast Status
# ---------------------------------------------------------------------------------
  09/26/2017 08 AM PDT             5.7            321                        Normal
  09/26/2017 09 AM PDT             5.7            320         -              Normal
  09/26/2017 10 AM PDT             5.7            320         0              Normal
  09/26/2017 11 AM PDT             5.7            319         -              Normal
  09/26/2017 12 PM PDT             5.7            319         0              Normal
  09/26/2017 01 PM PDT             5.7            318         -              Normal
  09/26/2017 02 PM PDT             5.7            318         0              Normal
  09/26/2017 03 PM PDT             5.7            317         -              Normal
  09/26/2017 04 PM PDT             5.7            317         0              Normal
  09/26/2017 05 PM PDT             5.6            316         -              Normal
  09/26/2017 06 PM PDT             5.7            319         +              Normal
  09/26/2017 07 PM PDT             5.7            318         -              Normal
  09/26/2017 08 PM PDT             5.6            316         -              Normal
  09/26/2017 09 PM PDT             5.6            315         -              Normal
  09/26/2017 10 PM PDT             5.6            314         -              Normal
  09/26/2017 11 PM PDT             5.6            313         -              Normal
  09/27/2017 12 AM PDT             5.6            312         -              Normal
  09/27/2017 01 AM PDT             5.6            311         -              Normal
  09/27/2017 02 AM PDT             5.6            310         -              Normal
  09/27/2017 03 AM PDT             5.6            310         0              Normal
  09/27/2017 04 AM PDT             5.6            309         -              Normal
  09/27/2017 05 AM PDT             5.6            308         -              Normal
  09/27/2017 06 AM PDT             5.6            308         0              Normal
  09/27/2017 07 AM PDT             5.6            307         -              Normal
  09/27/2017 08 AM PDT             5.6            306         -              Normal
  09/27/2017 09 AM PDT             5.6            306         0              Normal
  09/27/2017 10 AM PDT             5.6            306         0              Normal
  09/27/2017 11 AM PDT             5.6            305         -              Normal
  09/27/2017 12 PM PDT             5.6            305         0              Normal
  09/27/2017 01 PM PDT             5.6            305         0              Normal
  09/27/2017 02 PM PDT             5.6            304         -              Normal
  09/27/2017 03 PM PDT             5.6            304         0              Normal
  09/27/2017 04 PM PDT             5.6            304         0              Normal
  09/27/2017 05 PM PDT             5.6            304         0              Normal
  09/27/2017 06 PM PDT             5.6            306         +              Normal
  09/27/2017 07 PM PDT             5.6            306         0              Normal
  09/27/2017 08 PM PDT             5.6            306         0              Normal
  09/27/2017 09 PM PDT             5.6            306         0              Normal
  09/27/2017 10 PM PDT             5.6            306         0              Normal
  09/27/2017 11 PM PDT             5.6            306         0              Normal
  09/28/2017 12 AM PDT             5.6            306         0              Normal
  09/28/2017 01 AM PDT             5.6            306         0              Normal
  09/28/2017 02 AM PDT             5.6            306         0              Normal
  09/28/2017 03 AM PDT             5.6            306         0              Normal
  09/28/2017 04 AM PDT             5.6            306         0              Normal
  09/28/2017 05 AM PDT             5.6            306         0              Normal
  09/28/2017 06 AM PDT             5.6            306         0              Normal
  09/28/2017 07 AM PDT             5.6            306         0              Normal
  09/28/2017 08 AM PDT             5.6            306         0              Normal
  09/28/2017 09 AM PDT             5.6            306         0              Normal
  09/28/2017 10 AM PDT             5.6            306         0              Normal
  09/28/2017 11 AM PDT             5.6            306         0              Normal
  09/28/2017 12 PM PDT             5.6            306         0              Normal
  09/28/2017 01 PM PDT             5.6            306         0              Normal
  09/28/2017 02 PM PDT             5.6            306         0              Normal
  09/28/2017 03 PM PDT             5.6            306         0              Normal
  09/28/2017 04 PM PDT             5.6            306         0              Normal
  09/28/2017 05 PM PDT             5.6            306         0              Normal
  09/28/2017 06 PM PDT             5.6            308         +              Normal
  09/28/2017 07 PM PDT             5.6            308         0              Normal
  09/28/2017 08 PM PDT             5.6            308         0              Normal
  09/28/2017 09 PM PDT             5.6            308         0              Normal
  09/28/2017 10 PM PDT             5.6            309         +              Normal
  09/28/2017 11 PM PDT             5.6            309         0              Normal
  09/29/2017 12 AM PDT             5.6            309         0              Normal
  09/29/2017 01 AM PDT             5.6            309         0              Normal
  09/29/2017 02 AM PDT             5.6            309         0              Normal
  09/29/2017 03 AM PDT             5.6            309         0              Normal
  09/29/2017 04 AM PDT             5.6            309         0              Normal
  09/29/2017 05 AM PDT             5.6            309         0              Normal
  09/29/2017 06 AM PDT             5.6            309         0              Normal
  09/29/2017 07 AM PDT             5.6            309         0              Normal
  09/29/2017 08 AM PDT             5.6            309         0              Normal
  09/29/2017 09 AM PDT             5.6            309         0              Normal
  09/29/2017 10 AM PDT             5.6            309         0              Normal
  09/29/2017 11 AM PDT             5.6            309         0              Normal
  09/29/2017 12 PM PDT             5.6            309         0              Normal
  09/29/2017 01 PM PDT             5.6            309         0              Normal
  09/29/2017 02 PM PDT             5.6            309         0              Normal
  09/29/2017 03 PM PDT             5.6            309         0              Normal
  09/29/2017 04 PM PDT             5.6            309         0              Normal
  09/29/2017 05 PM PDT             5.6            309         0              Normal
  09/29/2017 06 PM PDT             5.6            312         +              Normal
  09/29/2017 07 PM PDT             5.6            312         0              Normal
  09/29/2017 08 PM PDT             5.6            312         0              Normal
  09/29/2017 09 PM PDT             5.6            312         0              Normal
  09/29/2017 10 PM PDT             5.6            312         0              Normal
  09/29/2017 11 PM PDT             5.6            312         0              Normal
  09/30/2017 12 AM PDT             5.6            312         0              Normal
  09/30/2017 01 AM PDT             5.6            313         +              Normal
  09/30/2017 02 AM PDT             5.6            313         0              Normal
  09/30/2017 03 AM PDT             5.6            313         0              Normal
  09/30/2017 04 AM PDT             5.6            313         0              Normal
  09/30/2017 05 AM PDT             5.6            313         0              Normal
  09/30/2017 06 AM PDT             5.6            313         0              Normal
  09/30/2017 07 AM PDT             5.6            313         0              Normal
  09/30/2017 08 AM PDT             5.6            313         0              Normal
  09/30/2017 09 AM PDT             5.6            313         0              Normal
  09/30/2017 10 AM PDT             5.6            313         0              Normal
  09/30/2017 11 AM PDT             5.6            313         0              Normal
  09/30/2017 12 PM PDT             5.6            313         0              Normal
  09/30/2017 01 PM PDT             5.6            313         0              Normal
  09/30/2017 02 PM PDT             5.6            313         0              Normal
  09/30/2017 03 PM PDT             5.6            313         0              Normal
  09/30/2017 04 PM PDT             5.6            313         0              Normal
  09/30/2017 05 PM PDT             5.6            312         -              Normal
  09/30/2017 06 PM PDT             5.6            315         +              Normal
  09/30/2017 07 PM PDT             5.6            315         0              Normal
  09/30/2017 08 PM PDT             5.6            315         0              Normal
  09/30/2017 09 PM PDT             5.6            315         0              Normal
  09/30/2017 10 PM PDT             5.6            315         0              Normal
  09/30/2017 11 PM PDT             5.6            316         +              Normal
  10/01/2017 12 AM PDT             5.6            316         0              Normal
  10/01/2017 01 AM PDT             5.6            316         0              Normal
  10/01/2017 02 AM PDT             5.6            316         0              Normal
  10/01/2017 03 AM PDT             5.6            316         0              Normal
  10/01/2017 04 AM PDT             5.6            316         0              Normal
  10/01/2017 05 AM PDT             5.6            316         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.