# Tabular Observed and Forecast Hydrograph Information
#
# Location: Mattole River - Ettersburg (ETTC1)
#
# File Generation Time: 04/20/2026 at 06:51 AM PDT
# Data Interval: 1 Hour
#
# Most Recent Date & Time of Maximum Observed: 04/15/2026 at 11:00 PM PDT
# Maximum Observed Stage: 9.75 Feet
# Maximum Observed Flow: 160 cfs
#
# Earliest Date & Time of Maximum Forecast: 04/22/2026 at 12:00 AM PDT
# Maximum Forecast Stage: 10.81 Feet
# Maximum Forecast Flow: 367 cfs
#
# OBSERVED
#
# Date & Time (Local) Stage (Feet) Flow (cfs) Trend Observed Status
# ---------------------------------------------------------------------------------
04/15/2026 06 AM PDT 9.75 160 Not Applicable
04/15/2026 07 AM PDT 9.75 160 0 Not Applicable
04/15/2026 08 AM PDT 9.73 157 - Not Applicable
04/15/2026 09 AM PDT 9.73 157 0 Not Applicable
04/15/2026 10 AM PDT 9.73 157 0 Not Applicable
04/15/2026 11 AM PDT 9.73 157 0 Not Applicable
04/15/2026 12 PM PDT 9.72 155 - Not Applicable
04/15/2026 01 PM PDT 9.71 154 - Not Applicable
04/15/2026 02 PM PDT 9.72 155 + Not Applicable
04/15/2026 03 PM PDT 9.70 152 - Not Applicable
04/15/2026 04 PM PDT 9.71 154 + Not Applicable
04/15/2026 05 PM PDT 9.71 154 0 Not Applicable
04/15/2026 06 PM PDT 9.72 155 + Not Applicable
04/15/2026 07 PM PDT 9.73 157 + Not Applicable
04/15/2026 08 PM PDT 9.74 158 + Not Applicable
04/15/2026 09 PM PDT 9.74 158 0 Not Applicable
04/15/2026 10 PM PDT 9.75 160 + Not Applicable
04/15/2026 11 PM PDT 9.75 160 0 Not Applicable
04/16/2026 12 AM PDT 9.73 157 - Not Applicable
04/16/2026 01 AM PDT 9.71 154 - Not Applicable
04/16/2026 02 AM PDT 9.70 152 - Not Applicable
04/16/2026 03 AM PDT 9.69 150 - Not Applicable
04/16/2026 04 AM PDT 9.69 150 0 Not Applicable
04/16/2026 05 AM PDT 9.67 147 - Not Applicable
04/16/2026 06 AM PDT 9.67 147 0 Not Applicable
04/16/2026 07 AM PDT 9.66 146 - Not Applicable
04/16/2026 08 AM PDT 9.66 146 0 Not Applicable
04/16/2026 09 AM PDT 9.65 144 - Not Applicable
04/16/2026 10 AM PDT 9.64 143 - Not Applicable
04/16/2026 11 AM PDT 9.63 141 - Not Applicable
04/16/2026 12 PM PDT 9.63 141 0 Not Applicable
04/16/2026 01 PM PDT 9.63 141 0 Not Applicable
04/16/2026 02 PM PDT 9.61 138 - Not Applicable
04/16/2026 03 PM PDT 9.62 140 + Not Applicable
04/16/2026 04 PM PDT 9.60 137 - Not Applicable
04/16/2026 05 PM PDT 9.60 137 0 Not Applicable
04/16/2026 06 PM PDT 9.59 135 - Not Applicable
04/16/2026 07 PM PDT 9.58 134 - Not Applicable
04/16/2026 08 PM PDT 9.58 134 0 Not Applicable
04/16/2026 09 PM PDT 9.58 134 0 Not Applicable
04/16/2026 10 PM PDT 9.57 132 - Not Applicable
04/16/2026 11 PM PDT 9.57 132 0 Not Applicable
04/17/2026 12 AM PDT 9.56 131 - Not Applicable
04/17/2026 01 AM PDT 9.55 129 - Not Applicable
04/17/2026 02 AM PDT 9.56 131 + Not Applicable
04/17/2026 03 AM PDT 9.55 129 - Not Applicable
04/17/2026 04 AM PDT 9.55 129 0 Not Applicable
04/17/2026 05 AM PDT 9.54 128 - Not Applicable
04/17/2026 06 AM PDT 9.53 126 - Not Applicable
04/17/2026 07 AM PDT 9.53 126 0 Not Applicable
04/17/2026 08 AM PDT 9.53 126 0 Not Applicable
04/17/2026 09 AM PDT 9.53 126 0 Not Applicable
04/17/2026 10 AM PDT 9.53 126 0 Not Applicable
04/17/2026 11 AM PDT 9.52 125 - Not Applicable
04/17/2026 12 PM PDT 9.52 125 0 Not Applicable
04/17/2026 01 PM PDT 9.52 125 0 Not Applicable
04/17/2026 02 PM PDT 9.53 126 + Not Applicable
04/17/2026 03 PM PDT 9.52 125 - Not Applicable
04/17/2026 04 PM PDT 9.52 125 0 Not Applicable
04/17/2026 05 PM PDT 9.51 124 - Not Applicable
04/17/2026 06 PM PDT 9.50 122 - Not Applicable
04/17/2026 07 PM PDT 9.50 122 0 Not Applicable
04/17/2026 08 PM PDT 9.49 121 - Not Applicable
04/17/2026 09 PM PDT 9.49 121 0 Not Applicable
04/17/2026 10 PM PDT 9.49 121 0 Not Applicable
04/17/2026 11 PM PDT 9.48 119 - Not Applicable
04/18/2026 12 AM PDT 9.47 118 - Not Applicable
04/18/2026 01 AM PDT 9.47 118 0 Not Applicable
04/18/2026 02 AM PDT 9.47 118 0 Not Applicable
04/18/2026 03 AM PDT 9.47 118 0 Not Applicable
04/18/2026 04 AM PDT 9.46 117 - Not Applicable
04/18/2026 05 AM PDT 9.46 117 0 Not Applicable
04/18/2026 06 AM PDT 9.45 115 - Not Applicable
04/18/2026 07 AM PDT 9.45 115 0 Not Applicable
04/18/2026 08 AM PDT 9.44 114 - Not Applicable
04/18/2026 09 AM PDT 9.45 115 + Not Applicable
04/18/2026 10 AM PDT 9.45 115 0 Not Applicable
04/18/2026 11 AM PDT 9.45 115 0 Not Applicable
04/18/2026 12 PM PDT 9.44 114 - Not Applicable
04/18/2026 01 PM PDT 9.45 115 + Not Applicable
04/18/2026 02 PM PDT 9.45 115 0 Not Applicable
04/18/2026 03 PM PDT 9.45 115 0 Not Applicable
04/18/2026 04 PM PDT 9.44 114 - Not Applicable
04/18/2026 05 PM PDT 9.44 114 0 Not Applicable
04/18/2026 06 PM PDT 9.43 112 - Not Applicable
04/18/2026 07 PM PDT 9.42 111 - Not Applicable
04/18/2026 08 PM PDT 9.43 112 + Not Applicable
04/18/2026 09 PM PDT 9.42 111 - Not Applicable
04/18/2026 10 PM PDT 9.41 110 - Not Applicable
04/18/2026 11 PM PDT 9.42 111 + Not Applicable
04/19/2026 12 AM PDT 9.41 110 - Not Applicable
04/19/2026 01 AM PDT 9.41 110 0 Not Applicable
04/19/2026 02 AM PDT 9.40 108 - Not Applicable
04/19/2026 03 AM PDT 9.40 108 0 Not Applicable
04/19/2026 04 AM PDT 9.40 108 0 Not Applicable
04/19/2026 05 AM PDT 9.40 108 0 Not Applicable
04/19/2026 06 AM PDT 9.39 107 - Not Applicable
04/19/2026 07 AM PDT 9.39 107 0 Not Applicable
04/19/2026 08 AM PDT 9.39 107 0 Not Applicable
04/19/2026 09 AM PDT 9.39 107 0 Not Applicable
04/19/2026 10 AM PDT 9.39 107 0 Not Applicable
04/19/2026 11 AM PDT 9.39 107 0 Not Applicable
04/19/2026 12 PM PDT 9.39 107 0 Not Applicable
04/19/2026 01 PM PDT 9.38 106 - Not Applicable
04/19/2026 02 PM PDT 9.39 107 + Not Applicable
04/19/2026 03 PM PDT 9.39 107 0 Not Applicable
04/19/2026 04 PM PDT 9.38 106 - Not Applicable
04/19/2026 05 PM PDT 9.38 106 0 Not Applicable
04/19/2026 06 PM PDT 9.37 104 - Not Applicable
04/19/2026 07 PM PDT 9.37 104 0 Not Applicable
04/19/2026 08 PM PDT 9.36 103 - Not Applicable
04/19/2026 09 PM PDT 9.36 103 0 Not Applicable
04/19/2026 10 PM PDT 9.36 103 0 Not Applicable
04/19/2026 11 PM PDT 9.36 103 0 Not Applicable
04/20/2026 12 AM PDT 9.36 103 0 Not Applicable
04/20/2026 01 AM PDT 9.36 103 0 Not Applicable
04/20/2026 02 AM PDT 9.35 102 - Not Applicable
04/20/2026 03 AM PDT 9.35 102 0 Not Applicable
04/20/2026 04 AM PDT 9.35 102 0 Not Applicable
04/20/2026 05 AM PDT 9.37 104 + Not Applicable
04/20/2026 06 AM PDT 9.37 104 0 Not Applicable
#
# FORECAST
#
# Date & Time (Local) Stage (Feet) Flow (cfs) Trend Forecast Status
# ---------------------------------------------------------------------------------
04/20/2026 07 AM PDT 9.38 106 Not Applicable
04/20/2026 08 AM PDT 9.38 106 0 Not Applicable
04/20/2026 09 AM PDT 9.39 107 + Not Applicable
04/20/2026 10 AM PDT 9.42 111 + Not Applicable
04/20/2026 11 AM PDT 9.47 118 + Not Applicable
04/20/2026 12 PM PDT 9.59 135 + Not Applicable
04/20/2026 01 PM PDT 9.80 168 + Not Applicable
04/20/2026 02 PM PDT 10.07 215 + Not Applicable
04/20/2026 03 PM PDT 10.30 258 + Not Applicable
04/20/2026 04 PM PDT 10.48 295 + Not Applicable
04/20/2026 05 PM PDT 10.61 322 + Not Applicable
04/20/2026 06 PM PDT 10.70 342 + Not Applicable
04/20/2026 07 PM PDT 10.75 353 + Not Applicable
04/20/2026 08 PM PDT 10.79 362 + Not Applicable
04/20/2026 09 PM PDT 10.79 362 0 Not Applicable
04/20/2026 10 PM PDT 10.78 360 - Not Applicable
04/20/2026 11 PM PDT 10.75 353 - Not Applicable
04/21/2026 12 AM PDT 10.70 342 - Not Applicable
04/21/2026 01 AM PDT 10.65 331 - Not Applicable
04/21/2026 02 AM PDT 10.59 318 - Not Applicable
04/21/2026 03 AM PDT 10.53 305 - Not Applicable
04/21/2026 04 AM PDT 10.49 297 - Not Applicable
04/21/2026 05 AM PDT 10.45 288 - Not Applicable
04/21/2026 06 AM PDT 10.43 284 - Not Applicable
04/21/2026 07 AM PDT 10.41 280 - Not Applicable
04/21/2026 08 AM PDT 10.40 278 - Not Applicable
04/21/2026 09 AM PDT 10.40 278 0 Not Applicable
04/21/2026 10 AM PDT 10.40 278 0 Not Applicable
04/21/2026 11 AM PDT 10.41 280 + Not Applicable
04/21/2026 12 PM PDT 10.42 282 + Not Applicable
04/21/2026 01 PM PDT 10.44 286 + Not Applicable
04/21/2026 02 PM PDT 10.45 288 + Not Applicable
04/21/2026 03 PM PDT 10.48 295 + Not Applicable
04/21/2026 04 PM PDT 10.52 303 + Not Applicable
04/21/2026 05 PM PDT 10.56 312 + Not Applicable
04/21/2026 06 PM PDT 10.61 322 + Not Applicable
04/21/2026 07 PM PDT 10.67 335 + Not Applicable
04/21/2026 08 PM PDT 10.72 347 + Not Applicable
04/21/2026 09 PM PDT 10.76 356 + Not Applicable
04/21/2026 10 PM PDT 10.79 362 + Not Applicable
04/21/2026 11 PM PDT 10.80 365 + Not Applicable
04/22/2026 12 AM PDT 10.81 367 + Not Applicable
04/22/2026 01 AM PDT 10.81 367 0 Not Applicable
04/22/2026 02 AM PDT 10.80 365 - Not Applicable
04/22/2026 03 AM PDT 10.79 362 - Not Applicable
04/22/2026 04 AM PDT 10.77 358 - Not Applicable
04/22/2026 05 AM PDT 10.74 351 - Not Applicable
04/22/2026 06 AM PDT 10.71 344 - Not Applicable
04/22/2026 07 AM PDT 10.68 338 - Not Applicable
04/22/2026 08 AM PDT 10.63 327 - Not Applicable
04/22/2026 09 AM PDT 10.56 312 - Not Applicable
04/22/2026 10 AM PDT 10.46 291 - Not Applicable
04/22/2026 11 AM PDT 10.36 270 - Not Applicable
04/22/2026 12 PM PDT 10.29 256 - Not Applicable
04/22/2026 01 PM PDT 10.25 248 - Not Applicable
04/22/2026 02 PM PDT 10.23 245 - Not Applicable
04/22/2026 03 PM PDT 10.22 243 - Not Applicable
04/22/2026 04 PM PDT 10.22 243 0 Not Applicable
04/22/2026 05 PM PDT 10.22 243 0 Not Applicable
04/22/2026 06 PM PDT 10.22 243 0 Not Applicable
04/22/2026 07 PM PDT 10.22 243 0 Not Applicable
04/22/2026 08 PM PDT 10.22 243 0 Not Applicable
04/22/2026 09 PM PDT 10.22 243 0 Not Applicable
04/22/2026 10 PM PDT 10.22 243 0 Not Applicable
04/22/2026 11 PM PDT 10.22 243 0 Not Applicable
04/23/2026 12 AM PDT 10.22 243 0 Not Applicable
04/23/2026 01 AM PDT 10.21 241 - Not Applicable
04/23/2026 02 AM PDT 10.21 241 0 Not Applicable
04/23/2026 03 AM PDT 10.20 239 - Not Applicable
04/23/2026 04 AM PDT 10.19 237 - Not Applicable
04/23/2026 05 AM PDT 10.19 237 0 Not Applicable
04/23/2026 06 AM PDT 10.18 235 - Not Applicable
04/23/2026 07 AM PDT 10.17 233 - Not Applicable
04/23/2026 08 AM PDT 10.16 231 - Not Applicable
04/23/2026 09 AM PDT 10.16 231 0 Not Applicable
04/23/2026 10 AM PDT 10.15 229 - Not Applicable
04/23/2026 11 AM PDT 10.14 227 - Not Applicable
04/23/2026 12 PM PDT 10.14 227 0 Not Applicable
04/23/2026 01 PM PDT 10.13 226 - Not Applicable
04/23/2026 02 PM PDT 10.12 224 - Not Applicable
04/23/2026 03 PM PDT 10.12 224 0 Not Applicable
04/23/2026 04 PM PDT 10.11 222 - Not Applicable
04/23/2026 05 PM PDT 10.10 220 - Not Applicable
04/23/2026 06 PM PDT 10.09 218 - Not Applicable
04/23/2026 07 PM PDT 10.09 218 0 Not Applicable
04/23/2026 08 PM PDT 10.08 216 - Not Applicable
04/23/2026 09 PM PDT 10.07 215 - Not Applicable
04/23/2026 10 PM PDT 10.06 213 - Not Applicable
04/23/2026 11 PM PDT 10.06 213 0 Not Applicable
04/24/2026 12 AM PDT 10.05 211 - Not Applicable
04/24/2026 01 AM PDT 10.04 209 - Not Applicable
04/24/2026 02 AM PDT 10.04 209 0 Not Applicable
04/24/2026 03 AM PDT 10.03 207 - Not Applicable
04/24/2026 04 AM PDT 10.03 207 0 Not Applicable
04/24/2026 05 AM PDT 10.02 206 - Not Applicable
04/24/2026 06 AM PDT 10.01 204 - Not Applicable
04/24/2026 07 AM PDT 10.01 204 0 Not Applicable
04/24/2026 08 AM PDT 10.00 202 - Not Applicable
04/24/2026 09 AM PDT 9.99 200 - Not Applicable
04/24/2026 10 AM PDT 9.98 199 - Not Applicable
04/24/2026 11 AM PDT 9.98 199 0 Not Applicable
04/24/2026 12 PM PDT 9.97 197 - Not Applicable
04/24/2026 01 PM PDT 9.97 197 0 Not Applicable
04/24/2026 02 PM PDT 9.96 195 - Not Applicable
04/24/2026 03 PM PDT 9.95 193 - Not Applicable
04/24/2026 04 PM PDT 9.95 193 0 Not Applicable
04/24/2026 05 PM PDT 9.94 192 - Not Applicable
04/24/2026 06 PM PDT 9.94 192 0 Not Applicable
04/24/2026 07 PM PDT 9.93 190 - Not Applicable
04/24/2026 08 PM PDT 9.92 188 - Not Applicable
04/24/2026 09 PM PDT 9.92 188 0 Not Applicable
04/24/2026 10 PM PDT 9.91 186 - Not Applicable
04/24/2026 11 PM PDT 9.90 185 - Not Applicable
04/25/2026 12 AM PDT 9.90 185 0 Not Applicable
04/25/2026 01 AM PDT 9.89 183 - Not Applicable
04/25/2026 02 AM PDT 9.89 183 0 Not Applicable
04/25/2026 03 AM PDT 9.88 181 - Not Applicable
04/25/2026 04 AM PDT 9.88 181 0 Not Applicable
04/25/2026 05 AM PDT 9.87 180 - Not Applicable
#
# 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.
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