CNRFC - Hydrology - River Guidance - Tabular Data

Location:

# NOTE 1: # NOTE 2: # NOTE 3: # NOTE 4:

KLAMATHRUSNAPSOUTHBAYSALINASSOCALSANDIEGOUPRSACLWRSACFTHRYUBAAMERICANCAPUTAHTULARESANJOAQNSANJOAQESIERRAHUMBOLDT = window.location.search; = new URLSearchParams(queryString); = window.location.href.split('?')[0] + "?" + urlParams.toString(); class="head">MATTOLE RIVER - ETTERSBURG (ETTC1)
Latitude: 40.14º N Longitude: 123.99º W Elevation: 579 Feet Forecast Type: Unofficial Location
Location: Humboldt County in California Bulletin Group: North Coast River Group: North Coast
Issuance Time: Apr 15 2026 at 1:25 PM PDT Next Issuance: Apr 16 2026 at 9:00 AM PDT width="16%">
Action/Monitor: N/A Minor Flood: N/A Moderate Flood: N/A Major Flood: N/A

# Tabular Observed and Forecast Hydrograph Information River - Ettersburg (ETTC1) 04/15/2026 at 01:27 PM PDT Date & Time of Maximum Observed: 04/12/2026 at 02:00 PM PDT 11.09 Feet 434 cfs & Time of Maximum Forecast: 04/20/2026 at 05:00 AM PDT 10.06 Feet 213 cfs Stage (Feet) Flow (cfs) Trend Observed Status ------------------------------------------------------------- 9.13 78 Not Applicable 9.12 76 - Not Applicable 9.12 76 0 Not Applicable 9.12 76 0 Not Applicable 9.12 76 0 Not Applicable 9.11 75 - Not Applicable 9.11 75 0 Not Applicable 9.11 75 0 Not Applicable 9.11 75 0 Not Applicable 9.11 75 0 Not Applicable 9.12 76 + Not Applicable 9.14 79 + Not Applicable 9.15 79 + Not Applicable 9.16 80 + Not Applicable 9.17 81 + Not Applicable 9.19 83 + Not Applicable 9.22 87 + Not Applicable 9.24 89 + Not Applicable 9.27 92 + Not Applicable 9.29 95 + Not Applicable 9.32 98 + Not Applicable 9.34 101 + Not Applicable 9.37 104 + Not Applicable 9.41 110 + Not Applicable 9.52 125 + Not Applicable 9.62 140 + Not Applicable 9.67 147 + Not Applicable 9.73 157 + Not Applicable 9.78 165 + Not Applicable 9.84 175 + Not Applicable 9.93 190 + Not Applicable 9.99 200 + Not Applicable 9.98 199 - Not Applicable 9.94 192 - Not Applicable 9.92 188 - Not Applicable 9.91 186 - Not Applicable 9.89 183 - Not Applicable 9.89 183 0 Not Applicable 9.91 186 + Not Applicable 9.97 197 + Not Applicable 10.03 207 + Not Applicable 10.10 220 + Not Applicable 10.25 248 + Not Applicable 10.37 272 + Not Applicable 10.48 295 + Not Applicable 10.61 322 + Not Applicable 10.83 372 + Not Applicable 10.95 400 + Not Applicable 11.07 429 + Not Applicable 11.09 434 + Not Applicable 11.07 429 - Not Applicable 11.04 421 - Not Applicable 10.98 407 - Not Applicable 10.94 397 - Not Applicable 10.89 386 - Not Applicable 10.86 379 - Not Applicable 10.84 374 - Not Applicable 10.79 362 - Not Applicable 10.75 353 - Not Applicable 10.70 342 - Not Applicable 10.67 335 - Not Applicable 10.63 327 - Not Applicable 10.59 318 - Not Applicable 10.56 312 - Not Applicable 10.52 303 - Not Applicable 10.49 297 - Not Applicable 10.46 291 - Not Applicable 10.43 284 - Not Applicable 10.40 278 - Not Applicable 10.39 276 - Not Applicable 10.36 270 - Not Applicable 10.33 264 - Not Applicable 10.31 260 - Not Applicable 10.28 254 - Not Applicable 10.25 248 - Not Applicable 10.23 245 - Not Applicable 10.22 243 - Not Applicable 10.19 237 - Not Applicable 10.17 233 - Not Applicable 10.15 229 - Not Applicable 10.13 226 - Not Applicable 10.12 224 - Not Applicable 10.10 220 - Not Applicable 10.09 218 - Not Applicable 10.07 215 - Not Applicable 10.05 211 - Not Applicable 10.03 207 - Not Applicable 10.02 206 - Not Applicable 10.01 204 - Not Applicable 10.00 202 - Not Applicable 9.98 199 - Not Applicable 9.96 195 - Not Applicable 9.96 195 0 Not Applicable 9.94 192 - Not Applicable 9.93 190 - Not Applicable 9.93 190 0 Not Applicable 9.92 188 - Not Applicable 9.90 185 - Not Applicable 9.90 185 0 Not Applicable 9.88 181 - Not Applicable 9.87 180 - Not Applicable 9.86 178 - Not Applicable 9.85 176 - Not Applicable 9.83 173 - Not Applicable 9.84 175 + Not Applicable 9.81 170 - Not Applicable 9.80 168 - Not Applicable 9.80 168 0 Not Applicable 9.79 166 - Not Applicable 9.77 163 - Not Applicable 9.77 163 0 Not Applicable 9.76 162 - Not Applicable 9.75 160 - Not Applicable 9.75 160 0 Not Applicable 9.75 160 0 Not Applicable 9.73 157 - Not Applicable 9.73 157 0 Not Applicable 9.73 157 0 Not Applicable 9.73 157 0 Not Applicable 9.72 155 - Not Applicable 9.72 155 0 Not Applicable Stage (Feet) Flow (cfs) Trend Forecast Status ------------------------------------------------------------- 9.72 155 Not Applicable 9.71 154 - Not Applicable 9.71 154 0 Not Applicable 9.72 155 + Not Applicable 9.72 155 0 Not Applicable 9.72 155 0 Not Applicable 9.72 155 0 Not Applicable 9.72 155 0 Not Applicable 9.72 155 0 Not Applicable 9.71 154 - Not Applicable 9.71 154 0 Not Applicable 9.70 152 - Not Applicable 9.69 150 - Not Applicable 9.69 150 0 Not Applicable 9.68 149 - Not Applicable 9.67 147 - Not Applicable 9.67 147 0 Not Applicable 9.66 146 - Not Applicable 9.66 146 0 Not Applicable 9.65 144 - Not Applicable 9.65 144 0 Not Applicable 9.64 143 - Not Applicable 9.64 143 0 Not Applicable 9.63 141 - Not Applicable 9.63 141 0 Not Applicable 9.63 141 0 Not Applicable 9.62 140 - Not Applicable 9.62 140 0 Not Applicable 9.62 140 0 Not Applicable 9.61 138 - Not Applicable 9.61 138 0 Not Applicable 9.61 138 0 Not Applicable 9.60 137 - Not Applicable 9.60 137 0 Not Applicable 9.60 137 0 Not Applicable 9.59 135 - Not Applicable 9.59 135 0 Not Applicable 9.59 135 0 Not Applicable 9.59 135 0 Not Applicable 9.58 134 - Not Applicable 9.58 134 0 Not Applicable 9.58 134 0 Not Applicable 9.57 132 - Not Applicable 9.57 132 0 Not Applicable 9.57 132 0 Not Applicable 9.57 132 0 Not Applicable 9.57 132 0 Not Applicable 9.56 131 - Not Applicable 9.56 131 0 Not Applicable 9.56 131 0 Not Applicable 9.56 131 0 Not Applicable 9.55 129 - Not Applicable 9.55 129 0 Not Applicable 9.55 129 0 Not Applicable 9.55 129 0 Not Applicable 9.55 129 0 Not Applicable 9.54 128 - Not Applicable 9.54 128 0 Not Applicable 9.54 128 0 Not Applicable 9.54 128 0 Not Applicable 9.54 128 0 Not Applicable 9.54 128 0 Not Applicable 9.53 126 - Not Applicable 9.53 126 0 Not Applicable 9.53 126 0 Not Applicable 9.53 126 0 Not Applicable 9.53 126 0 Not Applicable 9.53 126 0 Not Applicable 9.52 125 - Not Applicable 9.52 125 0 Not Applicable 9.52 125 0 Not Applicable 9.52 125 0 Not Applicable 9.52 125 0 Not Applicable 9.52 125 0 Not Applicable 9.52 125 0 Not Applicable 9.52 125 0 Not Applicable 9.51 124 - Not Applicable 9.51 124 0 Not Applicable 9.51 124 0 Not Applicable 9.51 124 0 Not Applicable 9.51 124 0 Not Applicable 9.51 124 0 Not Applicable 9.51 124 0 Not Applicable 9.51 124 0 Not Applicable 9.51 124 0 Not Applicable 9.50 122 - Not Applicable 9.50 122 0 Not Applicable 9.50 122 0 Not Applicable 9.50 122 0 Not Applicable 9.50 122 0 Not Applicable 9.50 122 0 Not Applicable 9.50 122 0 Not Applicable 9.50 122 0 Not Applicable 9.50 122 0 Not Applicable 9.50 122 0 Not Applicable 9.50 122 0 Not Applicable 9.51 124 + Not Applicable 9.51 124 0 Not Applicable 9.52 125 + Not Applicable 9.52 125 0 Not Applicable 9.53 126 + Not Applicable 9.54 128 + Not Applicable 9.54 128 0 Not Applicable 9.55 129 + Not Applicable 9.56 131 + Not Applicable 9.57 132 + Not Applicable 9.58 134 + Not Applicable 9.62 140 + Not Applicable 9.69 150 + Not Applicable 9.79 166 + Not Applicable 9.92 188 + Not Applicable 10.06 213 + Not Applicable 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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