CNRFC - Hydrology - River Guidance - Tabular Data

Location:

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KLAMATHRUSNAPSOUTHBAYSALINASSOCALSANDIEGOUPRSACLWRSACFTHRYUBAAMERICANCAPUTAHTULARESANJOAQNSANJOAQESIERRAHUMBOLDT = window.location.search; = new URLSearchParams(queryString); = window.location.href.split('?')[0] + "?" + urlParams.toString(); class="head">WALKER RIVER - MASON AT SNYDER LANE (MASN2)
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: Aug 20 2026 at 6:45 AM PDT Next Issuance: Aug 21 2026 at 9:00 AM PDT width="16%">
Action/Monitor: 9.0 Feet Minor Flood: 9.8 Feet Moderate Flood: 11.0 Feet Major Flood: 11.6 Feet
Please Note:

# Tabular Observed and Forecast Hydrograph Information River - Mason at Snyder Lane (MASN2) 08/20/2026 at 06:45 AM PDT Date & Time of Maximum Observed: 08/15/2026 at 06:00 AM PDT 4.30 Feet 190 cfs & Time of Maximum Forecast: 08/23/2026 at 11:00 PM PDT 3.98 Feet 139 cfs Stage (Feet) Flow (cfs) Trend Observed Status ------------------------------------------------------------- 4.30 190 Normal 4.27 185 - Normal 4.26 183 - Normal 4.27 185 + Normal 4.25 182 - Normal 4.25 182 0 Normal 4.25 182 0 Normal 4.24 180 - Normal 4.23 178 - Normal 4.22 177 - Normal 4.21 175 - Normal 4.20 173 - Normal 4.19 172 - Normal 4.19 172 0 Normal 4.19 172 0 Normal 4.19 172 0 Normal 4.19 172 0 Normal 4.20 173 + Normal 4.20 173 0 Normal 4.20 173 0 Normal 4.19 172 - Normal 4.19 172 0 Normal 4.19 172 0 Normal 4.19 172 0 Normal 4.19 172 0 Normal 4.18 170 - Normal 4.18 170 0 Normal 4.18 170 0 Normal 4.16 167 - Normal 4.15 165 - Normal 4.15 165 0 Normal 4.15 165 0 Normal 4.15 165 0 Normal 4.14 163 - Normal 4.13 162 - Normal 4.12 160 - Normal 4.12 160 0 Normal 4.12 160 0 Normal 4.12 160 0 Normal 4.11 159 - Normal 4.12 160 + Normal 4.12 160 0 Normal 4.13 162 + Normal 4.13 162 0 Normal 4.13 162 0 Normal 4.13 162 0 Normal 4.13 162 0 Normal 4.13 162 0 Normal 4.14 163 + Normal 4.14 163 0 Normal 4.13 162 - Normal 4.13 162 0 Normal 4.13 162 0 Normal 4.11 159 - Normal 4.08 154 - Normal 4.06 151 - Normal 4.05 149 - Normal 4.05 149 0 Normal 4.04 148 - Normal 4.04 148 0 Normal 4.04 148 0 Normal 4.03 146 - Normal 4.03 146 0 Normal 4.03 146 0 Normal 4.03 146 0 Normal 4.02 145 - Normal 4.02 145 0 Normal 4.02 145 0 Normal 4.03 146 + Normal 4.02 145 - Normal 4.01 143 - Normal 4.02 145 + Normal 4.02 145 0 Normal 4.02 145 0 Normal 4.02 145 0 Normal 4.01 143 - Normal 4.00 142 - Normal 3.99 140 - Normal 3.98 139 - Normal 3.98 139 0 Normal 3.98 139 0 Normal 3.97 137 - Normal 3.97 137 0 Normal 3.95 134 - Normal 3.95 134 0 Normal 3.94 133 - Normal 3.96 136 + Normal 3.97 137 + Normal 3.98 139 + Normal 3.99 140 + Normal 3.99 140 0 Normal 4.00 142 + Normal 4.01 143 + Normal 4.01 143 0 Normal 4.00 142 - Normal 4.01 143 + Normal 4.00 142 - Normal 4.01 143 + Normal 4.01 143 0 Normal 4.00 142 - Normal 4.00 142 0 Normal 3.98 139 - Normal 3.98 139 0 Normal 3.97 137 - Normal 3.97 137 0 Normal 3.97 137 0 Normal 3.96 136 - Normal 3.96 136 0 Normal 3.95 134 - Normal 3.94 133 - Normal 3.92 130 - Normal 3.91 128 - Normal 3.90 127 - Normal 3.90 127 0 Normal 3.89 126 - Normal 3.90 127 + Normal 3.89 126 - Normal 3.89 126 0 Normal 3.89 126 0 Normal 3.90 127 + Normal 3.90 127 0 Normal Stage (Feet) Flow (cfs) Trend Forecast Status ------------------------------------------------------------- 3.90 127 Normal 3.91 128 + Normal 3.91 128 0 Normal 3.91 128 0 Normal 3.91 128 0 Normal 3.91 128 0 Normal 3.91 128 0 Normal 3.92 130 + Normal 3.92 130 0 Normal 3.92 130 0 Normal 3.92 130 0 Normal 3.92 130 0 Normal 3.92 130 0 Normal 3.92 130 0 Normal 3.92 130 0 Normal 3.92 130 0 Normal 3.93 131 + Normal 3.93 131 0 Normal 3.93 131 0 Normal 3.93 131 0 Normal 3.93 131 0 Normal 3.93 131 0 Normal 3.93 131 0 Normal 3.93 131 0 Normal 3.93 131 0 Normal 3.93 131 0 Normal 3.93 131 0 Normal 3.93 131 0 Normal 3.93 131 0 Normal 3.93 131 0 Normal 3.93 131 0 Normal 3.93 131 0 Normal 3.93 131 0 Normal 3.93 131 0 Normal 3.93 131 0 Normal 3.94 133 + Normal 3.94 133 0 Normal 3.94 133 0 Normal 3.94 133 0 Normal 3.94 133 0 Normal 3.94 133 0 Normal 3.94 133 0 Normal 3.94 133 0 Normal 3.94 133 0 Normal 3.94 133 0 Normal 3.94 133 0 Normal 3.94 133 0 Normal 3.94 133 0 Normal 3.94 133 0 Normal 3.94 133 0 Normal 3.94 133 0 Normal 3.94 133 0 Normal 3.94 133 0 Normal 3.94 133 0 Normal 3.94 133 0 Normal 3.94 133 0 Normal 3.94 133 0 Normal 3.94 133 0 Normal 3.94 133 0 Normal 3.95 134 + Normal 3.95 134 0 Normal 3.95 134 0 Normal 3.95 134 0 Normal 3.95 134 0 Normal 3.95 134 0 Normal 3.95 134 0 Normal 3.95 134 0 Normal 3.96 136 + Normal 3.96 136 0 Normal 3.96 136 0 Normal 3.96 136 0 Normal 3.96 136 0 Normal 3.96 136 0 Normal 3.96 136 0 Normal 3.96 136 0 Normal 3.96 136 0 Normal 3.96 136 0 Normal 3.96 136 0 Normal 3.96 136 0 Normal 3.96 136 0 Normal 3.96 136 0 Normal 3.96 136 0 Normal 3.96 136 0 Normal 3.97 137 + Normal 3.97 137 0 Normal 3.97 137 0 Normal 3.97 137 0 Normal 3.97 137 0 Normal 3.98 139 + Normal 3.98 139 0 Normal 3.98 139 0 Normal 3.98 139 0 Normal 3.98 139 0 Normal 3.98 139 0 Normal 3.98 139 0 Normal 3.98 139 0 Normal 3.98 139 0 Normal 3.98 139 0 Normal 3.98 139 0 Normal 3.97 137 - Normal 3.97 137 0 Normal 3.97 137 0 Normal 3.97 137 0 Normal 3.97 137 0 Normal 3.97 137 0 Normal 3.97 137 0 Normal 3.97 137 0 Normal 3.98 139 + Normal 3.98 139 0 Normal 3.98 139 0 Normal 3.98 139 0 Normal 3.98 139 0 Normal 3.98 139 0 Normal 3.98 139 0 Normal 3.98 139 0 Normal 3.98 139 0 Normal 3.98 139 0 Normal 3.98 139 0 Normal 3.97 137 - Normal Stages are rounded to the nearest hundredth (.01) of a foot. Flows are rounded to the nearest (1) cfs. Trends are determined using hourly change in unrounded stage and flow. Maximum Values are determined using unrounded stage and flow. End Web Content -->
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