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 22 2026 at 7:27 AM PDT Next Issuance: Apr 23 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) 04/22/2026 at 07:28 AM PDT Date & Time of Maximum Observed: 04/20/2026 at 06:00 PM PDT 9.71 Feet 154 cfs & Time of Maximum Forecast: 04/22/2026 at 10:00 PM PDT 9.62 Feet 140 cfs Stage (Feet) Flow (cfs) Trend Observed Status ------------------------------------------------------------- 9.53 126 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 9.53 126 + Not Applicable 9.52 125 - Not Applicable 9.52 125 0 Not Applicable 9.51 124 - Not Applicable 9.50 122 - Not Applicable 9.50 122 0 Not Applicable 9.49 121 - Not Applicable 9.49 121 0 Not Applicable 9.49 121 0 Not Applicable 9.48 119 - Not Applicable 9.47 118 - Not Applicable 9.47 118 0 Not Applicable 9.47 118 0 Not Applicable 9.47 118 0 Not Applicable 9.46 117 - Not Applicable 9.46 117 0 Not Applicable 9.45 115 - Not Applicable 9.45 115 0 Not Applicable 9.44 114 - Not Applicable 9.45 115 + Not Applicable 9.45 115 0 Not Applicable 9.45 115 0 Not Applicable 9.44 114 - Not Applicable 9.45 115 + Not Applicable 9.45 115 0 Not Applicable 9.45 115 0 Not Applicable 9.44 114 - Not Applicable 9.44 114 0 Not Applicable 9.43 112 - Not Applicable 9.42 111 - Not Applicable 9.43 112 + Not Applicable 9.42 111 - Not Applicable 9.41 110 - Not Applicable 9.42 111 + Not Applicable 9.41 110 - Not Applicable 9.41 110 0 Not Applicable 9.40 108 - Not Applicable 9.40 108 0 Not Applicable 9.40 108 0 Not Applicable 9.40 108 0 Not Applicable 9.39 107 - Not Applicable 9.39 107 0 Not Applicable 9.39 107 0 Not Applicable 9.39 107 0 Not Applicable 9.39 107 0 Not Applicable 9.39 107 0 Not Applicable 9.39 107 0 Not Applicable 9.38 106 - Not Applicable 9.39 107 + Not Applicable 9.39 107 0 Not Applicable 9.38 106 - Not Applicable 9.38 106 0 Not Applicable 9.37 104 - Not Applicable 9.37 104 0 Not Applicable 9.36 103 - Not Applicable 9.36 103 0 Not Applicable 9.36 103 0 Not Applicable 9.36 103 0 Not Applicable 9.36 103 0 Not Applicable 9.36 103 0 Not Applicable 9.35 102 - Not Applicable 9.35 102 0 Not Applicable 9.35 102 0 Not Applicable 9.37 104 + Not Applicable 9.38 106 + Not Applicable 9.38 106 0 Not Applicable 9.39 107 + Not Applicable 9.42 111 + Not Applicable 9.46 117 + Not Applicable 9.49 121 + Not Applicable 9.55 129 + Not Applicable 9.60 137 + Not Applicable 9.64 143 + Not Applicable 9.67 147 + Not Applicable 9.69 150 + Not Applicable 9.70 152 + Not Applicable 9.71 154 + Not Applicable 9.70 152 - Not Applicable 9.69 150 - Not Applicable 9.68 149 - Not Applicable 9.66 146 - Not Applicable 9.66 146 0 Not Applicable 9.65 144 - Not Applicable 9.63 141 - Not Applicable 9.63 141 0 Not Applicable 9.62 140 - Not Applicable 9.60 137 - Not Applicable 9.59 135 - Not Applicable 9.58 134 - Not Applicable 9.57 132 - Not Applicable 9.57 132 0 Not Applicable 9.56 131 - Not Applicable 9.56 131 0 Not Applicable 9.55 129 - Not Applicable 9.55 129 0 Not Applicable 9.56 131 + 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 9.54 128 - Not Applicable 9.55 129 + Not Applicable 9.53 126 - Not Applicable 9.55 129 + 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 9.53 126 - Not Applicable 9.51 124 - Not Applicable 9.51 124 0 Not Applicable 9.53 126 + Not Applicable 9.54 128 + Not Applicable Stage (Feet) Flow (cfs) Trend Forecast Status ------------------------------------------------------------- 9.56 131 Not Applicable 9.55 129 - Not Applicable 9.52 125 - Not Applicable 9.48 119 - Not Applicable 9.46 117 - Not Applicable 9.47 118 + Not Applicable 9.49 121 + Not Applicable 9.53 126 + Not Applicable 9.56 131 + Not Applicable 9.59 135 + Not Applicable 9.60 137 + Not Applicable 9.61 138 + Not Applicable 9.61 138 0 Not Applicable 9.61 138 0 Not Applicable 9.62 140 + Not Applicable 9.62 140 0 Not Applicable 9.62 140 0 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 9.61 138 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 9.58 134 - 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 9.56 131 - 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 9.54 128 - 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 9.52 125 - 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 9.50 122 - Not Applicable 9.50 122 0 Not Applicable 9.50 122 0 Not Applicable 9.49 121 - Not Applicable 9.49 121 0 Not Applicable 9.49 121 0 Not Applicable 9.48 119 - Not Applicable 9.48 119 0 Not Applicable 9.48 119 0 Not Applicable 9.47 118 - Not Applicable 9.47 118 0 Not Applicable 9.47 118 0 Not Applicable 9.46 117 - Not Applicable 9.46 117 0 Not Applicable 9.46 117 0 Not Applicable 9.46 117 0 Not Applicable 9.45 115 - Not Applicable 9.45 115 0 Not Applicable 9.45 115 0 Not Applicable 9.44 114 - Not Applicable 9.44 114 0 Not Applicable 9.44 114 0 Not Applicable 9.44 114 0 Not Applicable 9.43 112 - Not Applicable 9.43 112 0 Not Applicable 9.43 112 0 Not Applicable 9.43 112 0 Not Applicable 9.42 111 - Not Applicable 9.42 111 0 Not Applicable 9.42 111 0 Not Applicable 9.41 110 - Not Applicable 9.41 110 0 Not Applicable 9.41 110 0 Not Applicable 9.41 110 0 Not Applicable 9.40 108 - Not Applicable 9.40 108 0 Not Applicable 9.40 108 0 Not Applicable 9.39 107 - Not Applicable 9.39 107 0 Not Applicable 9.39 107 0 Not Applicable 9.39 107 0 Not Applicable 9.38 106 - Not Applicable 9.38 106 0 Not Applicable 9.38 106 0 Not Applicable 9.38 106 0 Not Applicable 9.38 106 0 Not Applicable 9.37 104 - Not Applicable 9.37 104 0 Not Applicable 9.37 104 0 Not Applicable 9.37 104 0 Not Applicable 9.36 103 - Not Applicable 9.36 103 0 Not Applicable 9.36 103 0 Not Applicable 9.36 103 0 Not Applicable 9.35 102 - Not Applicable 9.35 102 0 Not Applicable 9.35 102 0 Not Applicable 9.35 102 0 Not Applicable 9.35 102 0 Not Applicable 9.34 101 - Not Applicable 9.34 101 0 Not Applicable 9.34 101 0 Not Applicable 9.34 101 0 Not Applicable 9.33 99 - Not Applicable 9.33 99 0 Not Applicable 9.33 99 0 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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