| Latitude: 38.92º N | Longitude: 119.19º W | Elevation: 4420 Feet | Forecast Type: Official Location | |
| Location: Lyon County in Nevada | Bulletin Group: Eastern Sierra | River Group: Eastern Sierra | ||
| Issuance Time: | Oct 31 2026 at 8:59 AM PDT | Next Issuance: | Nov 01 2026 at 9:00 AM PST |
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| 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: 10/31/2026 at 08:59 AM PDT # Data Interval: 1 Hour # # Most Recent Date & Time of Maximum Observed: 10/26/2026 at 06:00 PM PDT # Maximum Observed Stage: 3.95 Feet # Maximum Observed Flow: 119 cfs # # Earliest Date & Time of Maximum Forecast: 10/31/2026 at 06:00 PM PDT # Maximum Forecast Stage: 3.79 Feet # Maximum Forecast Flow: 98 cfs # # OBSERVED # # Date & Time (Local) Stage (Feet) Flow (cfs) Trend Observed Status # --------------------------------------------------------------------------------- 10/26/2026 08 AM PDT 3.93 116 Normal 10/26/2026 09 AM PDT 3.92 114 - Normal 10/26/2026 10 AM PDT 3.93 116 + Normal 10/26/2026 11 AM PDT 3.93 116 0 Normal 10/26/2026 12 PM PDT 3.94 117 + Normal 10/26/2026 01 PM PDT 3.94 117 0 Normal 10/26/2026 02 PM PDT 3.94 117 0 Normal 10/26/2026 03 PM PDT 3.94 117 0 Normal 10/26/2026 04 PM PDT 3.95 119 + Normal 10/26/2026 05 PM PDT 3.95 119 0 Normal 10/26/2026 06 PM PDT 3.95 119 0 Normal 10/26/2026 07 PM PDT 3.93 116 - Normal 10/26/2026 08 PM PDT 3.93 116 0 Normal 10/26/2026 09 PM PDT 3.93 116 0 Normal 10/26/2026 10 PM PDT 3.92 114 - Normal 10/26/2026 11 PM PDT 3.90 112 - Normal 10/27/2026 12 AM PDT 3.91 113 + Normal 10/27/2026 01 AM PDT 3.90 112 - Normal 10/27/2026 02 AM PDT 3.90 112 0 Normal 10/27/2026 03 AM PDT 3.90 112 0 Normal 10/27/2026 04 AM PDT 3.91 113 + Normal 10/27/2026 05 AM PDT 3.90 112 - Normal 10/27/2026 06 AM PDT 3.90 112 0 Normal 10/27/2026 07 AM PDT 3.90 112 0 Normal 10/27/2026 08 AM PDT 3.91 113 + Normal 10/27/2026 09 AM PDT 3.91 113 0 Normal 10/27/2026 10 AM PDT 3.90 112 - Normal 10/27/2026 11 AM PDT 3.91 113 + Normal 10/27/2026 12 PM PDT 3.91 113 0 Normal 10/27/2026 01 PM PDT 3.91 113 0 Normal 10/27/2026 02 PM PDT 3.90 112 - Normal 10/27/2026 03 PM PDT 3.90 112 0 Normal 10/27/2026 04 PM PDT 3.90 112 0 Normal 10/27/2026 05 PM PDT 3.91 113 + Normal 10/27/2026 06 PM PDT 3.91 113 0 Normal 10/27/2026 07 PM PDT 3.91 113 0 Normal 10/27/2026 08 PM PDT 3.90 112 - Normal 10/27/2026 09 PM PDT 3.91 113 + Normal 10/27/2026 10 PM PDT 3.91 113 0 Normal 10/27/2026 11 PM PDT 3.91 113 0 Normal 10/28/2026 12 AM PDT 3.92 114 + Normal 10/28/2026 01 AM PDT 3.91 113 - Normal 10/28/2026 02 AM PDT 3.91 113 0 Normal 10/28/2026 03 AM PDT 3.92 114 + Normal 10/28/2026 04 AM PDT 3.91 113 - Normal 10/28/2026 05 AM PDT 3.92 114 + Normal 10/28/2026 06 AM PDT 3.92 114 0 Normal 10/28/2026 07 AM PDT 3.91 113 - Normal 10/28/2026 08 AM PDT 3.91 113 0 Normal 10/28/2026 09 AM PDT 3.92 114 + Normal 10/28/2026 10 AM PDT 3.91 113 - Normal 10/28/2026 11 AM PDT 3.90 112 - Normal 10/28/2026 12 PM PDT 3.89 110 - Normal 10/28/2026 01 PM PDT 3.88 109 - Normal 10/28/2026 02 PM PDT 3.87 108 - Normal 10/28/2026 03 PM PDT 3.86 107 - Normal 10/28/2026 04 PM PDT 3.87 108 + Normal 10/28/2026 05 PM PDT 3.84 104 - Normal 10/28/2026 06 PM PDT 3.84 104 0 Normal 10/28/2026 07 PM PDT 3.84 104 0 Normal 10/28/2026 08 PM PDT 3.84 104 0 Normal 10/28/2026 09 PM PDT 3.83 103 - Normal 10/28/2026 10 PM PDT 3.83 103 0 Normal 10/28/2026 11 PM PDT 3.82 101 - Normal 10/29/2026 12 AM PDT 3.81 100 - Normal 10/29/2026 01 AM PDT 3.82 101 + Normal 10/29/2026 02 AM PDT 3.82 101 0 Normal 10/29/2026 03 AM PDT 3.83 103 + Normal 10/29/2026 04 AM PDT 3.84 104 + Normal 10/29/2026 05 AM PDT 3.85 105 + Normal 10/29/2026 06 AM PDT 3.85 105 0 Normal 10/29/2026 07 AM PDT 3.85 105 0 Normal 10/29/2026 08 AM PDT 3.85 105 0 Normal 10/29/2026 09 AM PDT 3.84 104 - Normal 10/29/2026 10 AM PDT 3.84 104 0 Normal 10/29/2026 11 AM PDT 3.85 105 + Normal 10/29/2026 12 PM PDT 3.84 104 - Normal 10/29/2026 01 PM PDT 3.83 103 - Normal 10/29/2026 02 PM PDT 3.82 101 - Normal 10/29/2026 03 PM PDT 3.81 100 - Normal 10/29/2026 04 PM PDT 3.80 99 - Normal 10/29/2026 05 PM PDT 3.79 98 - Normal 10/29/2026 06 PM PDT 3.79 98 0 Normal 10/29/2026 07 PM PDT 3.78 96 - Normal 10/29/2026 08 PM PDT 3.77 95 - Normal 10/29/2026 09 PM PDT 3.76 94 - Normal 10/29/2026 10 PM PDT 3.76 94 0 Normal 10/29/2026 11 PM PDT 3.77 95 + Normal 10/30/2026 12 AM PDT 3.77 95 0 Normal 10/30/2026 01 AM PDT 3.76 94 - Normal 10/30/2026 02 AM PDT 3.76 94 0 Normal 10/30/2026 03 AM PDT 3.77 95 + Normal 10/30/2026 04 AM PDT 3.76 94 - Normal 10/30/2026 05 AM PDT 3.76 94 0 Normal 10/30/2026 06 AM PDT 3.76 94 0 Normal 10/30/2026 07 AM PDT 3.76 94 0 Normal 10/30/2026 08 AM PDT 3.77 95 + Normal 10/30/2026 09 AM PDT 3.77 95 0 Normal 10/30/2026 10 AM PDT 3.77 95 0 Normal 10/30/2026 11 AM PDT 3.77 95 0 Normal 10/30/2026 12 PM PDT 3.77 95 0 Normal 10/30/2026 01 PM PDT 3.77 95 0 Normal 10/30/2026 02 PM PDT 3.77 95 0 Normal 10/30/2026 03 PM PDT 3.77 95 0 Normal 10/30/2026 04 PM PDT 3.78 96 + Normal 10/30/2026 05 PM PDT 3.77 95 - Normal 10/30/2026 06 PM PDT 3.77 95 0 Normal 10/30/2026 07 PM PDT 3.77 95 0 Normal 10/30/2026 08 PM PDT 3.78 96 + Normal 10/30/2026 09 PM PDT 3.78 96 0 Normal 10/30/2026 10 PM PDT 3.77 95 - Normal 10/30/2026 11 PM PDT 3.77 95 0 Normal 10/31/2026 12 AM PDT 3.77 95 0 Normal 10/31/2026 01 AM PDT 3.76 94 - Normal 10/31/2026 02 AM PDT 3.77 95 + Normal 10/31/2026 03 AM PDT 3.77 95 0 Normal 10/31/2026 04 AM PDT 3.77 95 0 Normal 10/31/2026 05 AM PDT 3.78 96 + Normal 10/31/2026 06 AM PDT 3.78 96 0 Normal 10/31/2026 07 AM PDT 3.78 96 0 Normal 10/31/2026 08 AM PDT 3.78 96 0 Normal # # FORECAST # # Date & Time (Local) Stage (Feet) Flow (cfs) Trend Forecast Status # --------------------------------------------------------------------------------- 10/31/2026 09 AM PDT 3.78 96 Normal 10/31/2026 10 AM PDT 3.78 96 0 Normal 10/31/2026 11 AM PDT 3.78 96 0 Normal 10/31/2026 12 PM PDT 3.78 96 0 Normal 10/31/2026 01 PM PDT 3.78 96 0 Normal 10/31/2026 02 PM PDT 3.78 96 0 Normal 10/31/2026 03 PM PDT 3.78 96 0 Normal 10/31/2026 04 PM PDT 3.78 96 0 Normal 10/31/2026 05 PM PDT 3.78 96 0 Normal 10/31/2026 06 PM PDT 3.79 98 + Normal 10/31/2026 07 PM PDT 3.78 96 - Normal 10/31/2026 08 PM PDT 3.77 95 - Normal 10/31/2026 09 PM PDT 3.77 95 0 Normal 10/31/2026 10 PM PDT 3.75 93 - Normal 10/31/2026 11 PM PDT 3.74 92 - Normal 11/01/2026 12 AM PDT 3.72 89 - Normal 11/01/2026 01 AM PDT 3.70 87 - Normal 11/01/2026 01 AM PST 3.68 85 - Normal 11/01/2026 02 AM PST 3.65 81 - Normal 11/01/2026 03 AM PST 3.63 79 - Normal 11/01/2026 04 AM PST 3.60 76 - Normal 11/01/2026 05 AM PST 3.58 74 - Normal 11/01/2026 06 AM PST 3.55 70 - Normal 11/01/2026 07 AM PST 3.52 67 - Normal 11/01/2026 08 AM PST 3.50 65 - Normal 11/01/2026 09 AM PST 3.47 62 - Normal 11/01/2026 10 AM PST 3.45 60 - Normal 11/01/2026 11 AM PST 3.43 58 - Normal 11/01/2026 12 PM PST 3.42 58 - Normal 11/01/2026 01 PM PST 3.40 56 - Normal 11/01/2026 02 PM PST 3.39 55 - Normal 11/01/2026 03 PM PST 3.38 54 - Normal 11/01/2026 04 PM PST 3.37 53 - Normal 11/01/2026 05 PM PST 3.36 52 - Normal 11/01/2026 06 PM PST 3.35 51 - Normal 11/01/2026 07 PM PST 3.35 51 0 Normal 11/01/2026 08 PM PST 3.34 50 - Normal 11/01/2026 09 PM PST 3.34 50 0 Normal 11/01/2026 10 PM PST 3.34 50 0 Normal 11/01/2026 11 PM PST 3.34 50 0 Normal 11/02/2026 12 AM PST 3.34 50 0 Normal 11/02/2026 01 AM PST 3.35 51 + Normal 11/02/2026 02 AM PST 3.35 51 0 Normal 11/02/2026 03 AM PST 3.35 51 0 Normal 11/02/2026 04 AM PST 3.35 51 0 Normal 11/02/2026 05 AM PST 3.35 51 0 Normal 11/02/2026 06 AM PST 3.35 51 0 Normal 11/02/2026 07 AM PST 3.35 51 0 Normal 11/02/2026 08 AM PST 3.35 51 0 Normal 11/02/2026 09 AM PST 3.35 51 0 Normal 11/02/2026 10 AM PST 3.35 51 0 Normal 11/02/2026 11 AM PST 3.34 50 - Normal 11/02/2026 12 PM PST 3.34 50 0 Normal 11/02/2026 01 PM PST 3.34 50 0 Normal 11/02/2026 02 PM PST 3.33 49 - Normal 11/02/2026 03 PM PST 3.33 49 0 Normal 11/02/2026 04 PM PST 3.32 49 - Normal 11/02/2026 05 PM PST 3.32 49 0 Normal 11/02/2026 06 PM PST 3.31 48 - Normal 11/02/2026 07 PM PST 3.31 48 0 Normal 11/02/2026 08 PM PST 3.30 47 - Normal 11/02/2026 09 PM PST 3.30 47 0 Normal 11/02/2026 10 PM PST 3.30 47 0 Normal 11/02/2026 11 PM PST 3.29 46 - Normal 11/03/2026 12 AM PST 3.29 46 0 Normal 11/03/2026 01 AM PST 3.29 46 0 Normal 11/03/2026 02 AM PST 3.28 45 - Normal 11/03/2026 03 AM PST 3.27 44 - Normal 11/03/2026 04 AM PST 3.27 44 0 Normal 11/03/2026 05 AM PST 3.26 44 - Normal 11/03/2026 06 AM PST 3.26 44 0 Normal 11/03/2026 07 AM PST 3.25 43 - Normal 11/03/2026 08 AM PST 3.24 42 - Normal 11/03/2026 09 AM PST 3.24 42 0 Normal 11/03/2026 10 AM PST 3.23 41 - Normal 11/03/2026 11 AM PST 3.23 41 0 Normal 11/03/2026 12 PM PST 3.22 40 - Normal 11/03/2026 01 PM PST 3.22 40 0 Normal 11/03/2026 02 PM PST 3.21 40 - Normal 11/03/2026 03 PM PST 3.21 40 0 Normal 11/03/2026 04 PM PST 3.20 39 - Normal 11/03/2026 05 PM PST 3.20 39 0 Normal 11/03/2026 06 PM PST 3.20 39 0 Normal 11/03/2026 07 PM PST 3.20 39 0 Normal 11/03/2026 08 PM PST 3.19 38 - Normal 11/03/2026 09 PM PST 3.19 38 0 Normal 11/03/2026 10 PM PST 3.20 39 + Normal 11/03/2026 11 PM PST 3.20 39 0 Normal 11/04/2026 12 AM PST 3.20 39 0 Normal 11/04/2026 01 AM PST 3.20 39 0 Normal 11/04/2026 02 AM PST 3.20 39 0 Normal 11/04/2026 03 AM PST 3.20 39 0 Normal 11/04/2026 04 AM PST 3.20 39 0 Normal 11/04/2026 05 AM PST 3.20 39 0 Normal 11/04/2026 06 AM PST 3.20 39 0 Normal 11/04/2026 07 AM PST 3.20 39 0 Normal 11/04/2026 08 AM PST 3.20 39 0 Normal 11/04/2026 09 AM PST 3.20 39 0 Normal 11/04/2026 10 AM PST 3.20 39 0 Normal 11/04/2026 11 AM PST 3.20 39 0 Normal 11/04/2026 12 PM PST 3.20 39 0 Normal 11/04/2026 01 PM PST 3.20 39 0 Normal 11/04/2026 02 PM PST 3.20 39 0 Normal 11/04/2026 03 PM PST 3.20 39 0 Normal 11/04/2026 04 PM PST 3.21 40 + Normal 11/04/2026 05 PM PST 3.21 40 0 Normal 11/04/2026 06 PM PST 3.21 40 0 Normal 11/04/2026 07 PM PST 3.21 40 0 Normal 11/04/2026 08 PM PST 3.21 40 0 Normal 11/04/2026 09 PM PST 3.21 40 0 Normal 11/04/2026 10 PM PST 3.22 40 + Normal 11/04/2026 11 PM PST 3.23 41 + Normal 11/05/2026 12 AM PST 3.23 41 0 Normal 11/05/2026 01 AM PST 3.23 41 0 Normal 11/05/2026 02 AM PST 3.23 41 0 Normal 11/05/2026 03 AM PST 3.23 41 0 Normal 11/05/2026 04 AM PST 3.23 41 0 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. |