| 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 27 2026 at 7:27 AM PDT | Next Issuance: | Oct 28 2026 at 9:00 AM PDT |
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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: 10/27/2026 at 07:27 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: 11/01/2026 at 12:00 AM PDT # Maximum Forecast Stage: 3.97 Feet # Maximum Forecast Flow: 121 cfs # # OBSERVED # # Date & Time (Local) Stage (Feet) Flow (cfs) Trend Observed Status # --------------------------------------------------------------------------------- 10/22/2026 07 AM PDT 3.88 109 Normal 10/22/2026 08 AM PDT 3.88 109 0 Normal 10/22/2026 09 AM PDT 3.89 110 + Normal 10/22/2026 10 AM PDT 3.88 109 - Normal 10/22/2026 11 AM PDT 3.88 109 0 Normal 10/22/2026 12 PM PDT 3.87 108 - Normal 10/22/2026 01 PM PDT 3.89 110 + Normal 10/22/2026 02 PM PDT 3.91 113 + Normal 10/22/2026 03 PM PDT 3.92 114 + Normal 10/22/2026 04 PM PDT 3.93 116 + Normal 10/22/2026 05 PM PDT 3.93 116 0 Normal 10/22/2026 06 PM PDT 3.93 116 0 Normal 10/22/2026 07 PM PDT 3.93 116 0 Normal 10/22/2026 08 PM PDT 3.93 116 0 Normal 10/22/2026 09 PM PDT 3.93 116 0 Normal 10/22/2026 10 PM PDT 3.94 117 + Normal 10/22/2026 11 PM PDT 3.94 117 0 Normal 10/23/2026 12 AM PDT 3.95 119 + 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 3.93 116 - Normal 10/23/2026 08 AM PDT 3.94 117 + Normal 10/23/2026 09 AM PDT 3.95 119 + Normal 10/23/2026 10 AM PDT 3.94 117 - Normal 10/23/2026 11 AM PDT 3.94 117 0 Normal 10/23/2026 12 PM PDT 3.95 119 + Normal 10/23/2026 01 PM PDT 3.94 117 - Normal 10/23/2026 02 PM PDT 3.93 116 - Normal 10/23/2026 03 PM PDT 3.93 116 0 Normal 10/23/2026 04 PM PDT 3.93 116 0 Normal 10/23/2026 05 PM PDT 3.92 114 - Normal 10/23/2026 06 PM PDT 3.92 114 0 Normal 10/23/2026 07 PM PDT 3.93 116 + Normal 10/23/2026 08 PM PDT 3.93 116 0 Normal 10/23/2026 09 PM PDT 3.92 114 - Normal 10/23/2026 10 PM PDT 3.92 114 0 Normal 10/23/2026 11 PM PDT 3.92 114 0 Normal 10/24/2026 12 AM PDT 3.92 114 0 Normal 10/24/2026 01 AM PDT 3.92 114 0 Normal 10/24/2026 02 AM PDT 3.92 114 0 Normal 10/24/2026 03 AM PDT 3.92 114 0 Normal 10/24/2026 04 AM PDT 3.94 117 + Normal 10/24/2026 05 AM PDT 3.95 119 + Normal 10/24/2026 06 AM PDT 3.93 116 - Normal 10/24/2026 07 AM PDT 3.93 116 0 Normal 10/24/2026 08 AM PDT 3.93 116 0 Normal 10/24/2026 09 AM PDT 3.93 116 0 Normal 10/24/2026 10 AM PDT 3.93 116 0 Normal 10/24/2026 11 AM PDT 3.91 113 - Normal 10/24/2026 12 PM PDT 3.89 110 - Normal 10/24/2026 01 PM PDT 3.89 110 0 Normal 10/24/2026 02 PM PDT 3.88 109 - Normal 10/24/2026 03 PM PDT 3.88 109 0 Normal 10/24/2026 04 PM PDT 3.88 109 0 Normal 10/24/2026 05 PM PDT 3.87 108 - Normal 10/24/2026 06 PM PDT 3.87 108 0 Normal 10/24/2026 07 PM PDT 3.88 109 + Normal 10/24/2026 08 PM PDT 3.87 108 - Normal 10/24/2026 09 PM PDT 3.88 109 + Normal 10/24/2026 10 PM PDT 3.88 109 0 Normal 10/24/2026 11 PM PDT 3.88 109 0 Normal 10/25/2026 12 AM PDT 3.87 108 - Normal 10/25/2026 01 AM PDT 3.87 108 0 Normal 10/25/2026 02 AM PDT 3.87 108 0 Normal 10/25/2026 03 AM PDT 3.88 109 + Normal 10/25/2026 04 AM PDT 3.87 108 - Normal 10/25/2026 05 AM PDT 3.89 110 + Normal 10/25/2026 06 AM PDT 3.88 109 - Normal 10/25/2026 07 AM PDT 3.88 109 0 Normal 10/25/2026 08 AM PDT 3.88 109 0 Normal 10/25/2026 09 AM PDT 3.88 109 0 Normal 10/25/2026 10 AM PDT 3.89 110 + Normal 10/25/2026 11 AM PDT 3.88 109 - Normal 10/25/2026 12 PM PDT 3.88 109 0 Normal 10/25/2026 01 PM PDT 3.88 109 0 Normal 10/25/2026 02 PM PDT 3.89 110 + Normal 10/25/2026 03 PM PDT 3.90 112 + Normal 10/25/2026 04 PM PDT 3.89 110 - Normal 10/25/2026 05 PM PDT 3.89 110 0 Normal 10/25/2026 06 PM PDT 3.89 110 0 Normal 10/25/2026 07 PM PDT 3.90 112 + Normal 10/25/2026 08 PM PDT 3.90 112 0 Normal 10/25/2026 09 PM PDT 3.90 112 0 Normal 10/25/2026 10 PM PDT 3.89 110 - Normal 10/25/2026 11 PM PDT 3.90 112 + Normal 10/26/2026 12 AM PDT 3.91 113 + Normal 10/26/2026 01 AM PDT 3.91 113 0 Normal 10/26/2026 02 AM PDT 3.91 113 0 Normal 10/26/2026 03 AM PDT 3.91 113 0 Normal 10/26/2026 04 AM PDT 3.91 113 0 Normal 10/26/2026 05 AM PDT 3.92 114 + Normal 10/26/2026 06 AM PDT 3.92 114 0 Normal 10/26/2026 07 AM PDT 3.93 116 + Normal 10/26/2026 08 AM PDT 3.93 116 0 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 # # FORECAST # # Date & Time (Local) Stage (Feet) Flow (cfs) Trend Forecast Status # --------------------------------------------------------------------------------- 10/27/2026 08 AM PDT 3.90 112 Normal 10/27/2026 09 AM PDT 3.90 112 0 Normal 10/27/2026 10 AM PDT 3.91 113 + Normal 10/27/2026 11 AM PDT 3.91 113 0 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 3.91 113 0 Normal 10/27/2026 03 PM PDT 3.91 113 0 Normal 10/27/2026 04 PM PDT 3.91 113 0 Normal 10/27/2026 05 PM PDT 3.91 113 0 Normal 10/27/2026 06 PM PDT 3.92 114 + Normal 10/27/2026 07 PM PDT 3.92 114 0 Normal 10/27/2026 08 PM PDT 3.92 114 0 Normal 10/27/2026 09 PM PDT 3.92 114 0 Normal 10/27/2026 10 PM PDT 3.92 114 0 Normal 10/27/2026 11 PM PDT 3.92 114 0 Normal 10/28/2026 12 AM PDT 3.92 114 0 Normal 10/28/2026 01 AM PDT 3.92 114 0 Normal 10/28/2026 02 AM PDT 3.92 114 0 Normal 10/28/2026 03 AM PDT 3.92 114 0 Normal 10/28/2026 04 AM PDT 3.92 114 0 Normal 10/28/2026 05 AM PDT 3.92 114 0 Normal 10/28/2026 06 AM PDT 3.92 114 0 Normal 10/28/2026 07 AM PDT 3.92 114 0 Normal 10/28/2026 08 AM PDT 3.92 114 0 Normal 10/28/2026 09 AM PDT 3.92 114 0 Normal 10/28/2026 10 AM PDT 3.92 114 0 Normal 10/28/2026 11 AM PDT 3.92 114 0 Normal 10/28/2026 12 PM PDT 3.92 114 0 Normal 10/28/2026 01 PM PDT 3.92 114 0 Normal 10/28/2026 02 PM PDT 3.92 114 0 Normal 10/28/2026 03 PM PDT 3.92 114 0 Normal 10/28/2026 04 PM PDT 3.92 114 0 Normal 10/28/2026 05 PM PDT 3.92 114 0 Normal 10/28/2026 06 PM PDT 3.92 114 0 Normal 10/28/2026 07 PM PDT 3.92 114 0 Normal 10/28/2026 08 PM PDT 3.92 114 0 Normal 10/28/2026 09 PM PDT 3.92 114 0 Normal 10/28/2026 10 PM PDT 3.92 114 0 Normal 10/28/2026 11 PM PDT 3.92 114 0 Normal 10/29/2026 12 AM PDT 3.92 114 0 Normal 10/29/2026 01 AM PDT 3.92 114 0 Normal 10/29/2026 02 AM PDT 3.92 114 0 Normal 10/29/2026 03 AM PDT 3.92 114 0 Normal 10/29/2026 04 AM PDT 3.93 116 + Normal 10/29/2026 05 AM PDT 3.93 116 0 Normal 10/29/2026 06 AM PDT 3.93 116 0 Normal 10/29/2026 07 AM PDT 3.93 116 0 Normal 10/29/2026 08 AM PDT 3.93 116 0 Normal 10/29/2026 09 AM PDT 3.93 116 0 Normal 10/29/2026 10 AM PDT 3.93 116 0 Normal 10/29/2026 11 AM PDT 3.93 116 0 Normal 10/29/2026 12 PM PDT 3.93 116 0 Normal 10/29/2026 01 PM PDT 3.93 116 0 Normal 10/29/2026 02 PM PDT 3.93 116 0 Normal 10/29/2026 03 PM PDT 3.93 116 0 Normal 10/29/2026 04 PM PDT 3.93 116 0 Normal 10/29/2026 05 PM PDT 3.93 116 0 Normal 10/29/2026 06 PM PDT 3.93 116 0 Normal 10/29/2026 07 PM PDT 3.93 116 0 Normal 10/29/2026 08 PM PDT 3.93 116 0 Normal 10/29/2026 09 PM PDT 3.93 116 0 Normal 10/29/2026 10 PM PDT 3.93 116 0 Normal 10/29/2026 11 PM PDT 3.93 116 0 Normal 10/30/2026 12 AM PDT 3.94 117 + Normal 10/30/2026 01 AM PDT 3.94 117 0 Normal 10/30/2026 02 AM PDT 3.94 117 0 Normal 10/30/2026 03 AM PDT 3.94 117 0 Normal 10/30/2026 04 AM PDT 3.94 117 0 Normal 10/30/2026 05 AM PDT 3.94 117 0 Normal 10/30/2026 06 AM PDT 3.94 117 0 Normal 10/30/2026 07 AM PDT 3.94 117 0 Normal 10/30/2026 08 AM PDT 3.94 117 0 Normal 10/30/2026 09 AM PDT 3.94 117 0 Normal 10/30/2026 10 AM PDT 3.94 117 0 Normal 10/30/2026 11 AM PDT 3.94 117 0 Normal 10/30/2026 12 PM PDT 3.94 117 0 Normal 10/30/2026 01 PM PDT 3.94 117 0 Normal 10/30/2026 02 PM PDT 3.94 117 0 Normal 10/30/2026 03 PM PDT 3.94 117 0 Normal 10/30/2026 04 PM PDT 3.94 117 0 Normal 10/30/2026 05 PM PDT 3.94 117 0 Normal 10/30/2026 06 PM PDT 3.94 117 0 Normal 10/30/2026 07 PM PDT 3.94 117 0 Normal 10/30/2026 08 PM PDT 3.94 117 0 Normal 10/30/2026 09 PM PDT 3.94 117 0 Normal 10/30/2026 10 PM PDT 3.95 119 + Normal 10/30/2026 11 PM PDT 3.95 119 0 Normal 10/31/2026 12 AM PDT 3.95 119 0 Normal 10/31/2026 01 AM PDT 3.95 119 0 Normal 10/31/2026 02 AM PDT 3.95 119 0 Normal 10/31/2026 03 AM PDT 3.95 119 0 Normal 10/31/2026 04 AM PDT 3.96 120 + Normal 10/31/2026 05 AM PDT 3.96 120 0 Normal 10/31/2026 06 AM PDT 3.96 120 0 Normal 10/31/2026 07 AM PDT 3.96 120 0 Normal 10/31/2026 08 AM PDT 3.96 120 0 Normal 10/31/2026 09 AM PDT 3.96 120 0 Normal 10/31/2026 10 AM PDT 3.96 120 0 Normal 10/31/2026 11 AM PDT 3.96 120 0 Normal 10/31/2026 12 PM PDT 3.96 120 0 Normal 10/31/2026 01 PM PDT 3.96 120 0 Normal 10/31/2026 02 PM PDT 3.96 120 0 Normal 10/31/2026 03 PM PDT 3.96 120 0 Normal 10/31/2026 04 PM PDT 3.96 120 0 Normal 10/31/2026 05 PM PDT 3.96 120 0 Normal 10/31/2026 06 PM PDT 3.96 120 0 Normal 10/31/2026 07 PM PDT 3.96 120 0 Normal 10/31/2026 08 PM PDT 3.96 120 0 Normal 10/31/2026 09 PM PDT 3.96 120 0 Normal 10/31/2026 10 PM PDT 3.96 120 0 Normal 10/31/2026 11 PM PDT 3.96 120 0 Normal 11/01/2026 12 AM PDT 3.97 121 + Normal 11/01/2026 01 AM PDT 3.97 121 0 Normal 11/01/2026 01 AM PST 3.97 121 0 Normal 11/01/2026 02 AM PST 3.97 121 0 Normal 11/01/2026 03 AM PST 3.97 121 0 Normal 11/01/2026 04 AM PST 3.97 121 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. |