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">NAPA RIVER - SAINT HELENA (SHEC1)
Latitude: 38.51º N Longitude: 122.45º W Elevation: 195 Feet Forecast Type: Official Location
Location: Napa County in California Bulletin Group: Russian Napa River Group: Russian Napa
Issuance Time: Feb 28 2026 at 7:42 AM PST Next Issuance: Mar 01 2026 at 9:00 AM PST width="16%">
Action/Monitor: 16.0 Feet Minor Flood: 18.0 Feet Moderate Flood: 20.0 Feet Major Flood: 22.0 Feet

# Tabular Observed and Forecast Hydrograph Information River - Saint Helena (SHEC1) 02/28/2026 at 07:43 AM PST Date & Time of Maximum Observed: 02/25/2026 at 08:00 AM PST 3.96 Feet 486 cfs & Time of Maximum Forecast: 02/28/2026 at 08:00 AM PST 2.79 Feet 178 cfs Stage (Feet) Flow (cfs) Trend Observed Status ------------------------------------------------------------- 2.64 147 Normal 2.63 145 - Normal 2.63 145 0 Normal 2.63 145 0 Normal 2.64 147 + Normal 2.60 140 - Normal 2.62 143 + Normal 2.62 143 0 Normal 2.62 143 0 Normal 2.62 143 0 Normal 2.60 140 - Normal 2.61 141 + Normal 2.60 140 - Normal 2.58 136 - Normal 2.57 134 - Normal 2.58 136 + Normal 2.60 140 + Normal 2.60 140 0 Normal 2.59 138 - Normal 2.59 138 0 Normal 2.59 138 0 Normal 2.57 134 - Normal 2.59 138 + Normal 2.59 138 0 Normal 2.59 138 0 Normal 2.59 138 0 Normal 2.59 138 0 Normal 2.56 132 - Normal 2.58 136 + Normal 2.57 134 - Normal 2.56 132 - Normal 2.57 134 + Normal 2.54 128 - Normal 2.55 130 + Normal 2.55 130 0 Normal 2.58 136 + Normal 2.70 159 + Normal 2.76 171 + Normal 2.85 190 + Normal 3.07 240 + Normal 3.23 280 + Normal 3.36 313 + Normal 3.60 379 + Normal 3.77 428 + Normal 3.83 446 + Normal 3.88 462 + Normal 3.92 474 + Normal 3.94 480 + Normal 3.93 477 - Normal 3.96 486 + Normal 3.94 480 - Normal 3.86 455 - Normal 3.81 440 - Normal 3.81 440 0 Normal 3.77 428 - Normal 3.79 434 + Normal 3.72 413 - Normal 3.69 405 - Normal 3.65 393 - Normal 3.60 379 - Normal 3.55 365 - Normal 3.53 359 - Normal 3.49 348 - Normal 3.48 345 - Normal 3.46 340 - Normal 3.42 329 - Normal 3.40 324 - Normal 3.39 321 - Normal 3.35 310 - Normal 3.35 310 0 Normal 3.33 305 - Normal 3.31 300 - Normal 3.29 295 - Normal 3.26 287 - Normal 3.27 290 + Normal 3.25 285 - Normal 3.19 270 - Normal 3.18 267 - Normal 3.22 277 + Normal 3.19 270 - Normal 3.20 272 + Normal 3.17 265 - Normal 3.19 270 + Normal 3.15 260 - Normal 3.12 252 - Normal 3.12 252 0 Normal 3.10 248 - Normal 3.03 231 - Normal 3.06 238 + Normal 3.04 233 - Normal 3.03 231 - Normal 3.03 231 0 Normal 3.03 231 0 Normal 3.03 231 0 Normal 2.98 219 - Normal 3.00 224 + Normal 3.00 224 0 Normal 3.00 224 0 Normal 2.99 222 - Normal 2.99 222 0 Normal 2.99 222 0 Normal 2.94 210 - Normal 2.97 217 + Normal 2.97 217 0 Normal 2.88 197 - Normal 2.92 206 + Normal 2.92 206 0 Normal 2.87 195 - Normal 2.87 195 0 Normal 2.90 201 + Normal 2.90 201 0 Normal 2.87 195 - Normal 2.86 193 - Normal 2.87 195 + Normal 2.86 193 - Normal 2.88 197 + Normal 2.86 193 - Normal 2.81 182 - Normal 2.81 182 0 Normal 2.80 180 - Normal 2.79 178 - Normal Stage (Feet) Flow (cfs) Trend Forecast Status ------------------------------------------------------------- 2.79 178 Normal 2.79 178 0 Normal 2.78 176 - Normal 2.78 176 0 Normal 2.77 174 - Normal 2.77 174 0 Normal 2.76 171 - Normal 2.76 171 0 Normal 2.75 169 - Normal 2.75 169 0 Normal 2.75 169 0 Normal 2.74 167 - Normal 2.74 167 0 Normal 2.73 165 - Normal 2.73 165 0 Normal 2.72 163 - Normal 2.72 163 0 Normal 2.71 161 - Normal 2.71 161 0 Normal 2.71 161 0 Normal 2.70 159 - Normal 2.70 159 0 Normal 2.69 157 - Normal 2.69 157 0 Normal 2.68 155 - Normal 2.68 155 0 Normal 2.67 153 - Normal 2.67 153 0 Normal 2.67 153 0 Normal 2.66 151 - Normal 2.66 151 0 Normal 2.65 149 - Normal 2.65 149 0 Normal 2.64 147 - Normal 2.64 147 0 Normal 2.64 147 0 Normal 2.63 145 - Normal 2.63 145 0 Normal 2.62 143 - Normal 2.62 143 0 Normal 2.62 143 0 Normal 2.61 141 - Normal 2.61 141 0 Normal 2.60 140 - Normal 2.60 140 0 Normal 2.59 138 - Normal 2.59 138 0 Normal 2.58 136 - Normal 2.58 136 0 Normal 2.58 136 0 Normal 2.57 134 - Normal 2.57 134 0 Normal 2.56 132 - Normal 2.56 132 0 Normal 2.55 130 - Normal 2.55 130 0 Normal 2.54 128 - Normal 2.54 128 0 Normal 2.53 126 - Normal 2.53 126 0 Normal 2.52 125 - Normal 2.52 125 0 Normal 2.52 125 0 Normal 2.51 123 - Normal 2.51 123 0 Normal 2.50 121 - Normal 2.50 121 0 Normal 2.49 119 - Normal 2.49 119 0 Normal 2.48 117 - Normal 2.48 117 0 Normal 2.47 116 - Normal 2.47 116 0 Normal 2.46 114 - Normal 2.46 114 0 Normal 2.46 114 0 Normal 2.45 112 - Normal 2.45 112 0 Normal 2.44 110 - Normal 2.44 110 0 Normal 2.43 109 - Normal 2.43 109 0 Normal 2.42 107 - Normal 2.42 107 0 Normal 2.41 105 - Normal 2.41 105 0 Normal 2.40 103 - Normal 2.40 103 0 Normal 2.39 102 - Normal 2.39 102 0 Normal 2.38 100 - Normal 2.38 100 0 Normal 2.37 98 - Normal 2.37 98 0 Normal 2.36 97 - Normal 2.36 97 0 Normal 2.35 95 - Normal 2.35 95 0 Normal 2.34 93 - Normal 2.34 93 0 Normal 2.33 92 - Normal 2.33 92 0 Normal 2.32 90 - Normal 2.32 90 0 Normal 2.31 89 - Normal 2.31 89 0 Normal 2.30 87 - Normal 2.30 87 0 Normal 2.29 85 - Normal 2.29 85 0 Normal 2.28 84 - Normal 2.28 84 0 Normal 2.27 82 - Normal 2.27 82 0 Normal 2.26 81 - Normal 2.26 81 0 Normal 2.25 79 - 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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