| 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 22 2026 at 8:16 AM PDT | Next Issuance: | Oct 23 2026 at 9:00 AM PDT |
|
| 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: 10/22/2026 at 08:16 AM PDT # Data Interval: 1 Hour # # Most Recent Date & Time of Maximum Observed: 10/21/2026 at 11:00 AM PDT # Maximum Observed Stage: 3.92 Feet # Maximum Observed Flow: 114 cfs # # Earliest Date & Time of Maximum Forecast: 10/27/2026 at 04:00 AM PDT # Maximum Forecast Stage: 3.98 Feet # Maximum Forecast Flow: 123 cfs # # OBSERVED # # Date & Time (Local) Stage (Feet) Flow (cfs) Trend Observed Status # --------------------------------------------------------------------------------- 10/17/2026 08 AM PDT 3.66 82 Normal 10/17/2026 09 AM PDT 3.66 82 0 Normal 10/17/2026 10 AM PDT 3.65 81 - Normal 10/17/2026 11 AM PDT 3.65 81 0 Normal 10/17/2026 12 PM PDT 3.65 81 0 Normal 10/17/2026 01 PM PDT 3.65 81 0 Normal 10/17/2026 02 PM PDT 3.65 81 0 Normal 10/17/2026 03 PM PDT 3.65 81 0 Normal 10/17/2026 04 PM PDT 3.66 82 + Normal 10/17/2026 05 PM PDT 3.66 82 0 Normal 10/17/2026 06 PM PDT 3.66 82 0 Normal 10/17/2026 07 PM PDT 3.66 82 0 Normal 10/17/2026 08 PM PDT 3.67 83 + Normal 10/17/2026 09 PM PDT 3.66 82 - Normal 10/17/2026 10 PM PDT 3.67 83 + Normal 10/17/2026 11 PM PDT 3.67 83 0 Normal 10/18/2026 12 AM PDT 3.66 82 - Normal 10/18/2026 01 AM PDT 3.66 82 0 Normal 10/18/2026 02 AM PDT 3.66 82 0 Normal 10/18/2026 03 AM PDT 3.67 83 + Normal 10/18/2026 04 AM PDT 3.66 82 - Normal 10/18/2026 05 AM PDT 3.66 82 0 Normal 10/18/2026 06 AM PDT 3.65 81 - Normal 10/18/2026 07 AM PDT 3.66 82 + Normal 10/18/2026 08 AM PDT 3.66 82 0 Normal 10/18/2026 09 AM PDT 3.66 82 0 Normal 10/18/2026 10 AM PDT 3.66 82 0 Normal 10/18/2026 11 AM PDT 3.65 81 - Normal 10/18/2026 12 PM PDT 3.65 81 0 Normal 10/18/2026 01 PM PDT 3.65 81 0 Normal 10/18/2026 02 PM PDT 3.64 80 - Normal 10/18/2026 03 PM PDT 3.64 80 0 Normal 10/18/2026 04 PM PDT 3.64 80 0 Normal 10/18/2026 05 PM PDT 3.65 81 + Normal 10/18/2026 06 PM PDT 3.65 81 0 Normal 10/18/2026 07 PM PDT 3.65 81 0 Normal 10/18/2026 08 PM PDT 3.65 81 0 Normal 10/18/2026 09 PM PDT 3.66 82 + Normal 10/18/2026 10 PM PDT 3.67 83 + Normal 10/18/2026 11 PM PDT 3.67 83 0 Normal 10/19/2026 12 AM PDT 3.68 85 + Normal 10/19/2026 01 AM PDT 3.69 86 + Normal 10/19/2026 02 AM PDT 3.70 87 + Normal 10/19/2026 03 AM PDT 3.73 90 + Normal 10/19/2026 04 AM PDT 3.74 92 + Normal 10/19/2026 05 AM PDT 3.74 92 0 Normal 10/19/2026 06 AM PDT 3.75 93 + Normal 10/19/2026 07 AM PDT 3.74 92 - Normal 10/19/2026 08 AM PDT 3.73 90 - Normal 10/19/2026 09 AM PDT 3.73 90 0 Normal 10/19/2026 10 AM PDT 3.73 90 0 Normal 10/19/2026 11 AM PDT 3.75 93 + Normal 10/19/2026 12 PM PDT 3.77 95 + Normal 10/19/2026 01 PM PDT 3.78 96 + Normal 10/19/2026 02 PM PDT 3.79 98 + Normal 10/19/2026 03 PM PDT 3.78 96 - Normal 10/19/2026 04 PM PDT 3.78 96 0 Normal 10/19/2026 05 PM PDT 3.78 96 0 Normal 10/19/2026 06 PM PDT 3.78 96 0 Normal 10/19/2026 07 PM PDT 3.78 96 0 Normal 10/19/2026 08 PM PDT 3.79 98 + Normal 10/19/2026 09 PM PDT 3.78 96 - Normal 10/19/2026 10 PM PDT 3.77 95 - Normal 10/19/2026 11 PM PDT 3.77 95 0 Normal 10/20/2026 12 AM PDT 3.77 95 0 Normal 10/20/2026 01 AM PDT 3.77 95 0 Normal 10/20/2026 02 AM PDT 3.77 95 0 Normal 10/20/2026 03 AM PDT 3.77 95 0 Normal 10/20/2026 04 AM PDT 3.77 95 0 Normal 10/20/2026 05 AM PDT 3.78 96 + Normal 10/20/2026 06 AM PDT 3.78 96 0 Normal 10/20/2026 07 AM PDT 3.78 96 0 Normal 10/20/2026 08 AM PDT 3.78 96 0 Normal 10/20/2026 09 AM PDT 3.77 95 - Normal 10/20/2026 10 AM PDT 3.78 96 + Normal 10/20/2026 11 AM PDT 3.79 98 + Normal 10/20/2026 12 PM PDT 3.81 100 + Normal 10/20/2026 01 PM PDT 3.82 101 + Normal 10/20/2026 02 PM PDT 3.82 101 0 Normal 10/20/2026 03 PM PDT 3.82 101 0 Normal 10/20/2026 04 PM PDT 3.83 103 + Normal 10/20/2026 05 PM PDT 3.83 103 0 Normal 10/20/2026 06 PM PDT 3.82 101 - Normal 10/20/2026 07 PM PDT 3.83 103 + Normal 10/20/2026 08 PM PDT 3.83 103 0 Normal 10/20/2026 09 PM PDT 3.84 104 + Normal 10/20/2026 10 PM PDT 3.85 105 + Normal 10/20/2026 11 PM PDT 3.85 105 0 Normal 10/21/2026 12 AM PDT 3.85 105 0 Normal 10/21/2026 01 AM PDT 3.85 105 0 Normal 10/21/2026 02 AM PDT 3.85 105 0 Normal 10/21/2026 03 AM PDT 3.86 107 + Normal 10/21/2026 04 AM PDT 3.87 108 + Normal 10/21/2026 05 AM PDT 3.88 109 + Normal 10/21/2026 06 AM PDT 3.88 109 0 Normal 10/21/2026 07 AM PDT 3.88 109 0 Normal 10/21/2026 08 AM PDT 3.90 112 + Normal 10/21/2026 09 AM PDT 3.91 113 + Normal 10/21/2026 10 AM PDT 3.91 113 0 Normal 10/21/2026 11 AM PDT 3.92 114 + Normal 10/21/2026 12 PM PDT 3.90 112 - Normal 10/21/2026 01 PM PDT 3.88 109 - Normal 10/21/2026 02 PM PDT 3.88 109 0 Normal 10/21/2026 03 PM PDT 3.88 109 0 Normal 10/21/2026 04 PM PDT 3.88 109 0 Normal 10/21/2026 05 PM PDT 3.88 109 0 Normal 10/21/2026 06 PM PDT 3.87 108 - Normal 10/21/2026 07 PM PDT 3.89 110 + Normal 10/21/2026 08 PM PDT 3.89 110 0 Normal 10/21/2026 09 PM PDT 3.89 110 0 Normal 10/21/2026 10 PM PDT 3.89 110 0 Normal 10/21/2026 11 PM PDT 3.88 109 - Normal 10/22/2026 12 AM PDT 3.90 112 + Normal 10/22/2026 01 AM PDT 3.90 112 0 Normal 10/22/2026 02 AM PDT 3.90 112 0 Normal 10/22/2026 03 AM PDT 3.90 112 0 Normal 10/22/2026 04 AM PDT 3.89 110 - Normal 10/22/2026 05 AM PDT 3.88 109 - Normal 10/22/2026 06 AM PDT 3.88 109 0 Normal 10/22/2026 07 AM PDT 3.88 109 0 Normal 10/22/2026 08 AM PDT 3.87 108 - Normal # # FORECAST # # Date & Time (Local) Stage (Feet) Flow (cfs) Trend Forecast Status # --------------------------------------------------------------------------------- 10/22/2026 09 AM PDT 3.87 108 Normal 10/22/2026 10 AM PDT 3.87 108 0 Normal 10/22/2026 11 AM PDT 3.87 108 0 Normal 10/22/2026 12 PM PDT 3.87 108 0 Normal 10/22/2026 01 PM PDT 3.87 108 0 Normal 10/22/2026 02 PM PDT 3.87 108 0 Normal 10/22/2026 03 PM PDT 3.88 109 + Normal 10/22/2026 04 PM PDT 3.88 109 0 Normal 10/22/2026 05 PM PDT 3.88 109 0 Normal 10/22/2026 06 PM PDT 3.89 110 + Normal 10/22/2026 07 PM PDT 3.89 110 0 Normal 10/22/2026 08 PM PDT 3.90 112 + Normal 10/22/2026 09 PM PDT 3.90 112 0 Normal 10/22/2026 10 PM PDT 3.91 113 + Normal 10/22/2026 11 PM PDT 3.92 114 + Normal 10/23/2026 12 AM PDT 3.92 114 0 Normal 10/23/2026 01 AM PDT 3.93 116 + Normal 10/23/2026 02 AM PDT 3.93 116 0 Normal 10/23/2026 03 AM PDT 3.94 117 + Normal 10/23/2026 04 AM PDT 3.94 117 0 Normal 10/23/2026 05 AM PDT 3.94 117 0 Normal 10/23/2026 06 AM PDT 3.94 117 0 Normal 10/23/2026 07 AM PDT 3.95 119 + Normal 10/23/2026 08 AM PDT 3.95 119 0 Normal 10/23/2026 09 AM PDT 3.95 119 0 Normal 10/23/2026 10 AM PDT 3.95 119 0 Normal 10/23/2026 11 AM PDT 3.95 119 0 Normal 10/23/2026 12 PM PDT 3.95 119 0 Normal 10/23/2026 01 PM PDT 3.95 119 0 Normal 10/23/2026 02 PM PDT 3.96 120 + Normal 10/23/2026 03 PM PDT 3.96 120 0 Normal 10/23/2026 04 PM PDT 3.96 120 0 Normal 10/23/2026 05 PM PDT 3.96 120 0 Normal 10/23/2026 06 PM PDT 3.96 120 0 Normal 10/23/2026 07 PM PDT 3.96 120 0 Normal 10/23/2026 08 PM PDT 3.96 120 0 Normal 10/23/2026 09 PM PDT 3.96 120 0 Normal 10/23/2026 10 PM PDT 3.96 120 0 Normal 10/23/2026 11 PM PDT 3.96 120 0 Normal 10/24/2026 12 AM PDT 3.96 120 0 Normal 10/24/2026 01 AM PDT 3.96 120 0 Normal 10/24/2026 02 AM PDT 3.96 120 0 Normal 10/24/2026 03 AM PDT 3.96 120 0 Normal 10/24/2026 04 AM PDT 3.96 120 0 Normal 10/24/2026 05 AM PDT 3.96 120 0 Normal 10/24/2026 06 AM PDT 3.96 120 0 Normal 10/24/2026 07 AM PDT 3.96 120 0 Normal 10/24/2026 08 AM PDT 3.96 120 0 Normal 10/24/2026 09 AM PDT 3.96 120 0 Normal 10/24/2026 10 AM PDT 3.96 120 0 Normal 10/24/2026 11 AM PDT 3.96 120 0 Normal 10/24/2026 12 PM PDT 3.96 120 0 Normal 10/24/2026 01 PM PDT 3.96 120 0 Normal 10/24/2026 02 PM PDT 3.96 120 0 Normal 10/24/2026 03 PM PDT 3.96 120 0 Normal 10/24/2026 04 PM PDT 3.95 119 - Normal 10/24/2026 05 PM PDT 3.95 119 0 Normal 10/24/2026 06 PM PDT 3.96 120 + Normal 10/24/2026 07 PM PDT 3.96 120 0 Normal 10/24/2026 08 PM PDT 3.95 119 - Normal 10/24/2026 09 PM PDT 3.95 119 0 Normal 10/24/2026 10 PM PDT 3.95 119 0 Normal 10/24/2026 11 PM PDT 3.96 120 + Normal 10/25/2026 12 AM PDT 3.96 120 0 Normal 10/25/2026 01 AM PDT 3.96 120 0 Normal 10/25/2026 02 AM PDT 3.96 120 0 Normal 10/25/2026 03 AM PDT 3.96 120 0 Normal 10/25/2026 04 AM PDT 3.96 120 0 Normal 10/25/2026 05 AM PDT 3.96 120 0 Normal 10/25/2026 06 AM PDT 3.96 120 0 Normal 10/25/2026 07 AM PDT 3.96 120 0 Normal 10/25/2026 08 AM PDT 3.96 120 0 Normal 10/25/2026 09 AM PDT 3.96 120 0 Normal 10/25/2026 10 AM PDT 3.96 120 0 Normal 10/25/2026 11 AM PDT 3.96 120 0 Normal 10/25/2026 12 PM PDT 3.96 120 0 Normal 10/25/2026 01 PM PDT 3.96 120 0 Normal 10/25/2026 02 PM PDT 3.96 120 0 Normal 10/25/2026 03 PM PDT 3.96 120 0 Normal 10/25/2026 04 PM PDT 3.96 120 0 Normal 10/25/2026 05 PM PDT 3.96 120 0 Normal 10/25/2026 06 PM PDT 3.96 120 0 Normal 10/25/2026 07 PM PDT 3.96 120 0 Normal 10/25/2026 08 PM PDT 3.96 120 0 Normal 10/25/2026 09 PM PDT 3.96 120 0 Normal 10/25/2026 10 PM PDT 3.96 120 0 Normal 10/25/2026 11 PM PDT 3.96 120 0 Normal 10/26/2026 12 AM PDT 3.96 120 0 Normal 10/26/2026 01 AM PDT 3.96 120 0 Normal 10/26/2026 02 AM PDT 3.96 120 0 Normal 10/26/2026 03 AM PDT 3.96 120 0 Normal 10/26/2026 04 AM PDT 3.96 120 0 Normal 10/26/2026 05 AM PDT 3.96 120 0 Normal 10/26/2026 06 AM PDT 3.96 120 0 Normal 10/26/2026 07 AM PDT 3.96 120 0 Normal 10/26/2026 08 AM PDT 3.96 120 0 Normal 10/26/2026 09 AM PDT 3.96 120 0 Normal 10/26/2026 10 AM PDT 3.96 120 0 Normal 10/26/2026 11 AM PDT 3.96 120 0 Normal 10/26/2026 12 PM PDT 3.96 120 0 Normal 10/26/2026 01 PM PDT 3.96 120 0 Normal 10/26/2026 02 PM PDT 3.96 120 0 Normal 10/26/2026 03 PM PDT 3.96 120 0 Normal 10/26/2026 04 PM PDT 3.96 120 0 Normal 10/26/2026 05 PM PDT 3.96 120 0 Normal 10/26/2026 06 PM PDT 3.97 121 + Normal 10/26/2026 07 PM PDT 3.97 121 0 Normal 10/26/2026 08 PM PDT 3.97 121 0 Normal 10/26/2026 09 PM PDT 3.97 121 0 Normal 10/26/2026 10 PM PDT 3.97 121 0 Normal 10/26/2026 11 PM PDT 3.97 121 0 Normal 10/27/2026 12 AM PDT 3.97 121 0 Normal 10/27/2026 01 AM PDT 3.97 121 0 Normal 10/27/2026 02 AM PDT 3.97 121 0 Normal 10/27/2026 03 AM PDT 3.97 121 0 Normal 10/27/2026 04 AM PDT 3.98 123 + Normal 10/27/2026 05 AM PDT 3.98 123 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. |