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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: | Jun 11 2026 at 7:27 AM PDT | Next Issuance: | Jun 12 2026 at 9:00 AM PDT
| |
| Action/Monitor: N/A | Minor Flood: N/A | Moderate Flood: N/A | Major Flood: N/A |
# Tabular Observed and Forecast Hydrograph Information
#
# Location: Mattole River - Ettersburg (ETTC1)
#
# File Generation Time: 06/11/2026 at 07:28 AM PDT
# Data Interval: 1 Hour
#
# Most Recent Date & Time of Maximum Observed: 06/09/2026 at 02:00 AM PDT
# Maximum Observed Stage: 9.24 Feet
# Maximum Observed Flow: 87 cfs
#
# Earliest Date & Time of Maximum Forecast: 06/11/2026 at 08:00 AM PDT
# Maximum Forecast Stage: 8.78 Feet
# Maximum Forecast Flow: 41 cfs
#
# OBSERVED
#
# Date & Time (Local) Stage (Feet) Flow (cfs) Trend Observed Status
# ---------------------------------------------------------------------------------
06/06/2026 07 AM PDT 8.75 38 Not Applicable
06/06/2026 08 AM PDT 8.75 38 0 Not Applicable
06/06/2026 09 AM PDT 8.75 38 0 Not Applicable
06/06/2026 10 AM PDT 8.75 38 0 Not Applicable
06/06/2026 11 AM PDT 8.75 38 0 Not Applicable
06/06/2026 12 PM PDT 8.75 38 0 Not Applicable
06/06/2026 01 PM PDT 8.75 38 0 Not Applicable
06/06/2026 02 PM PDT 8.75 38 0 Not Applicable
06/06/2026 03 PM PDT 8.75 38 0 Not Applicable
06/06/2026 04 PM PDT 8.75 38 0 Not Applicable
06/06/2026 05 PM PDT 8.75 38 0 Not Applicable
06/06/2026 06 PM PDT 8.75 38 0 Not Applicable
06/06/2026 07 PM PDT 8.75 38 0 Not Applicable
06/06/2026 08 PM PDT 8.75 38 0 Not Applicable
06/06/2026 09 PM PDT 8.76 39 + Not Applicable
06/06/2026 10 PM PDT 8.76 39 0 Not Applicable
06/06/2026 11 PM PDT 8.76 39 0 Not Applicable
06/07/2026 12 AM PDT 8.76 39 0 Not Applicable
06/07/2026 01 AM PDT 8.76 39 0 Not Applicable
06/07/2026 02 AM PDT 8.76 39 0 Not Applicable
06/07/2026 03 AM PDT 8.76 39 0 Not Applicable
06/07/2026 04 AM PDT 8.76 39 0 Not Applicable
06/07/2026 05 AM PDT 8.76 39 0 Not Applicable
06/07/2026 06 AM PDT 8.76 39 0 Not Applicable
06/07/2026 07 AM PDT 8.76 39 0 Not Applicable
06/07/2026 08 AM PDT 8.76 39 0 Not Applicable
06/07/2026 09 AM PDT 8.76 39 0 Not Applicable
06/07/2026 10 AM PDT 8.76 39 0 Not Applicable
06/07/2026 11 AM PDT 8.76 39 0 Not Applicable
06/07/2026 12 PM PDT 8.76 39 0 Not Applicable
06/07/2026 01 PM PDT 8.76 39 0 Not Applicable
06/07/2026 02 PM PDT 8.76 39 0 Not Applicable
06/07/2026 03 PM PDT 8.76 39 0 Not Applicable
06/07/2026 04 PM PDT 8.76 39 0 Not Applicable
06/07/2026 05 PM PDT 8.76 39 0 Not Applicable
06/07/2026 06 PM PDT 8.76 39 0 Not Applicable
06/07/2026 07 PM PDT 8.76 39 0 Not Applicable
06/07/2026 08 PM PDT 8.76 39 0 Not Applicable
06/07/2026 09 PM PDT 8.75 38 - Not Applicable
06/07/2026 10 PM PDT 8.75 38 0 Not Applicable
06/07/2026 11 PM PDT 8.75 38 0 Not Applicable
06/08/2026 12 AM PDT 8.75 38 0 Not Applicable
06/08/2026 01 AM PDT 8.74 38 - Not Applicable
06/08/2026 02 AM PDT 8.74 38 0 Not Applicable
06/08/2026 03 AM PDT 8.74 38 0 Not Applicable
06/08/2026 04 AM PDT 8.74 38 0 Not Applicable
06/08/2026 05 AM PDT 8.74 38 0 Not Applicable
06/08/2026 06 AM PDT 8.74 38 0 Not Applicable
06/08/2026 07 AM PDT 8.73 37 - Not Applicable
06/08/2026 08 AM PDT 8.73 37 0 Not Applicable
06/08/2026 09 AM PDT 8.73 37 0 Not Applicable
06/08/2026 10 AM PDT 8.73 37 0 Not Applicable
06/08/2026 11 AM PDT 8.73 37 0 Not Applicable
06/08/2026 12 PM PDT 8.73 37 0 Not Applicable
06/08/2026 01 PM PDT 8.74 38 + Not Applicable
06/08/2026 02 PM PDT 8.74 38 0 Not Applicable
06/08/2026 03 PM PDT 8.75 38 + Not Applicable
06/08/2026 04 PM PDT 8.76 39 + Not Applicable
06/08/2026 05 PM PDT 8.78 41 + Not Applicable
06/08/2026 06 PM PDT 8.79 42 + Not Applicable
06/08/2026 07 PM PDT 8.81 44 + Not Applicable
06/08/2026 08 PM PDT 8.83 45 + Not Applicable
06/08/2026 09 PM PDT 8.86 48 + Not Applicable
06/08/2026 10 PM PDT 8.94 56 + Not Applicable
06/08/2026 11 PM PDT 9.06 69 + Not Applicable
06/09/2026 12 AM PDT 9.20 83 + Not Applicable
06/09/2026 01 AM PDT 9.24 87 + Not Applicable
06/09/2026 02 AM PDT 9.24 87 0 Not Applicable
06/09/2026 03 AM PDT 9.22 85 - Not Applicable
06/09/2026 04 AM PDT 9.20 83 - Not Applicable
06/09/2026 05 AM PDT 9.18 81 - Not Applicable
06/09/2026 06 AM PDT 9.15 78 - Not Applicable
06/09/2026 07 AM PDT 9.14 77 - Not Applicable
06/09/2026 08 AM PDT 9.13 76 - Not Applicable
06/09/2026 09 AM PDT 9.11 75 - Not Applicable
06/09/2026 10 AM PDT 9.09 72 - Not Applicable
06/09/2026 11 AM PDT 9.07 70 - Not Applicable
06/09/2026 12 PM PDT 9.07 70 0 Not Applicable
06/09/2026 01 PM PDT 9.06 69 - Not Applicable
06/09/2026 02 PM PDT 9.06 69 0 Not Applicable
06/09/2026 03 PM PDT 9.06 69 0 Not Applicable
06/09/2026 04 PM PDT 9.05 68 - Not Applicable
06/09/2026 05 PM PDT 9.03 66 - Not Applicable
06/09/2026 06 PM PDT 9.01 63 - Not Applicable
06/09/2026 07 PM PDT 9.00 62 - Not Applicable
06/09/2026 08 PM PDT 8.98 60 - Not Applicable
06/09/2026 09 PM PDT 8.96 58 - Not Applicable
06/09/2026 10 PM PDT 8.95 57 - Not Applicable
06/09/2026 11 PM PDT 8.94 56 - Not Applicable
06/10/2026 12 AM PDT 8.92 54 - Not Applicable
06/10/2026 01 AM PDT 8.91 53 - Not Applicable
06/10/2026 02 AM PDT 8.90 52 - Not Applicable
06/10/2026 03 AM PDT 8.89 51 - Not Applicable
06/10/2026 04 AM PDT 8.89 51 0 Not Applicable
06/10/2026 05 AM PDT 8.88 50 - Not Applicable
06/10/2026 06 AM PDT 8.87 49 - Not Applicable
06/10/2026 07 AM PDT 8.87 49 0 Not Applicable
06/10/2026 08 AM PDT 8.86 48 - Not Applicable
06/10/2026 09 AM PDT 8.86 48 0 Not Applicable
06/10/2026 10 AM PDT 8.85 47 - Not Applicable
06/10/2026 11 AM PDT 8.85 47 0 Not Applicable
06/10/2026 12 PM PDT 8.85 47 0 Not Applicable
06/10/2026 01 PM PDT 8.84 46 - Not Applicable
06/10/2026 02 PM PDT 8.84 46 0 Not Applicable
06/10/2026 03 PM PDT 8.83 45 - Not Applicable
06/10/2026 04 PM PDT 8.83 45 0 Not Applicable
06/10/2026 05 PM PDT 8.83 45 0 Not Applicable
06/10/2026 06 PM PDT 8.82 45 - Not Applicable
06/10/2026 07 PM PDT 8.81 44 - Not Applicable
06/10/2026 08 PM PDT 8.81 44 0 Not Applicable
06/10/2026 09 PM PDT 8.80 43 - Not Applicable
06/10/2026 10 PM PDT 8.80 43 0 Not Applicable
06/10/2026 11 PM PDT 8.80 43 0 Not Applicable
06/11/2026 12 AM PDT 8.79 42 - Not Applicable
06/11/2026 01 AM PDT 8.79 42 0 Not Applicable
06/11/2026 02 AM PDT 8.79 42 0 Not Applicable
06/11/2026 03 AM PDT 8.79 42 0 Not Applicable
06/11/2026 04 AM PDT 8.79 42 0 Not Applicable
06/11/2026 05 AM PDT 8.79 42 0 Not Applicable
06/11/2026 06 AM PDT 8.78 41 - Not Applicable
06/11/2026 07 AM PDT 8.78 41 0 Not Applicable
#
# FORECAST
#
# Date & Time (Local) Stage (Feet) Flow (cfs) Trend Forecast Status
# ---------------------------------------------------------------------------------
06/11/2026 08 AM PDT 8.78 41 Not Applicable
06/11/2026 09 AM PDT 8.78 41 0 Not Applicable
06/11/2026 10 AM PDT 8.78 41 0 Not Applicable
06/11/2026 11 AM PDT 8.78 41 0 Not Applicable
06/11/2026 12 PM PDT 8.78 41 0 Not Applicable
06/11/2026 01 PM PDT 8.78 41 0 Not Applicable
06/11/2026 02 PM PDT 8.78 41 0 Not Applicable
06/11/2026 03 PM PDT 8.78 41 0 Not Applicable
06/11/2026 04 PM PDT 8.78 41 0 Not Applicable
06/11/2026 05 PM PDT 8.78 41 0 Not Applicable
06/11/2026 06 PM PDT 8.78 41 0 Not Applicable
06/11/2026 07 PM PDT 8.78 41 0 Not Applicable
06/11/2026 08 PM PDT 8.78 41 0 Not Applicable
06/11/2026 09 PM PDT 8.78 41 0 Not Applicable
06/11/2026 10 PM PDT 8.78 41 0 Not Applicable
06/11/2026 11 PM PDT 8.78 41 0 Not Applicable
06/12/2026 12 AM PDT 8.78 41 0 Not Applicable
06/12/2026 01 AM PDT 8.78 41 0 Not Applicable
06/12/2026 02 AM PDT 8.78 41 0 Not Applicable
06/12/2026 03 AM PDT 8.78 41 0 Not Applicable
06/12/2026 04 AM PDT 8.78 41 0 Not Applicable
06/12/2026 05 AM PDT 8.78 41 0 Not Applicable
06/12/2026 06 AM PDT 8.78 41 0 Not Applicable
06/12/2026 07 AM PDT 8.78 41 0 Not Applicable
06/12/2026 08 AM PDT 8.78 41 0 Not Applicable
06/12/2026 09 AM PDT 8.78 41 0 Not Applicable
06/12/2026 10 AM PDT 8.78 41 0 Not Applicable
06/12/2026 11 AM PDT 8.78 41 0 Not Applicable
06/12/2026 12 PM PDT 8.78 41 0 Not Applicable
06/12/2026 01 PM PDT 8.78 41 0 Not Applicable
06/12/2026 02 PM PDT 8.78 41 0 Not Applicable
06/12/2026 03 PM PDT 8.78 41 0 Not Applicable
06/12/2026 04 PM PDT 8.78 41 0 Not Applicable
06/12/2026 05 PM PDT 8.78 41 0 Not Applicable
06/12/2026 06 PM PDT 8.78 41 0 Not Applicable
06/12/2026 07 PM PDT 8.78 41 0 Not Applicable
06/12/2026 08 PM PDT 8.78 41 0 Not Applicable
06/12/2026 09 PM PDT 8.78 41 0 Not Applicable
06/12/2026 10 PM PDT 8.78 41 0 Not Applicable
06/12/2026 11 PM PDT 8.78 41 0 Not Applicable
06/13/2026 12 AM PDT 8.78 41 0 Not Applicable
06/13/2026 01 AM PDT 8.78 41 0 Not Applicable
06/13/2026 02 AM PDT 8.78 41 0 Not Applicable
06/13/2026 03 AM PDT 8.78 41 0 Not Applicable
06/13/2026 04 AM PDT 8.78 41 0 Not Applicable
06/13/2026 05 AM PDT 8.78 41 0 Not Applicable
06/13/2026 06 AM PDT 8.78 41 0 Not Applicable
06/13/2026 07 AM PDT 8.78 41 0 Not Applicable
06/13/2026 08 AM PDT 8.78 41 0 Not Applicable
06/13/2026 09 AM PDT 8.78 41 0 Not Applicable
06/13/2026 10 AM PDT 8.78 41 0 Not Applicable
06/13/2026 11 AM PDT 8.78 41 0 Not Applicable
06/13/2026 12 PM PDT 8.78 41 0 Not Applicable
06/13/2026 01 PM PDT 8.78 41 0 Not Applicable
06/13/2026 02 PM PDT 8.78 41 0 Not Applicable
06/13/2026 03 PM PDT 8.78 41 0 Not Applicable
06/13/2026 04 PM PDT 8.78 41 0 Not Applicable
06/13/2026 05 PM PDT 8.78 41 0 Not Applicable
06/13/2026 06 PM PDT 8.78 41 0 Not Applicable
06/13/2026 07 PM PDT 8.78 41 0 Not Applicable
06/13/2026 08 PM PDT 8.78 41 0 Not Applicable
06/13/2026 09 PM PDT 8.78 41 0 Not Applicable
06/13/2026 10 PM PDT 8.78 41 0 Not Applicable
06/13/2026 11 PM PDT 8.78 41 0 Not Applicable
06/14/2026 12 AM PDT 8.78 41 0 Not Applicable
06/14/2026 01 AM PDT 8.78 41 0 Not Applicable
06/14/2026 02 AM PDT 8.78 41 0 Not Applicable
06/14/2026 03 AM PDT 8.78 41 0 Not Applicable
06/14/2026 04 AM PDT 8.78 41 0 Not Applicable
06/14/2026 05 AM PDT 8.77 40 - Not Applicable
06/14/2026 06 AM PDT 8.77 40 0 Not Applicable
06/14/2026 07 AM PDT 8.77 40 0 Not Applicable
06/14/2026 08 AM PDT 8.77 40 0 Not Applicable
06/14/2026 09 AM PDT 8.77 40 0 Not Applicable
06/14/2026 10 AM PDT 8.77 40 0 Not Applicable
06/14/2026 11 AM PDT 8.77 40 0 Not Applicable
06/14/2026 12 PM PDT 8.77 40 0 Not Applicable
06/14/2026 01 PM PDT 8.77 40 0 Not Applicable
06/14/2026 02 PM PDT 8.77 40 0 Not Applicable
06/14/2026 03 PM PDT 8.77 40 0 Not Applicable
06/14/2026 04 PM PDT 8.77 40 0 Not Applicable
06/14/2026 05 PM PDT 8.77 40 0 Not Applicable
06/14/2026 06 PM PDT 8.77 40 0 Not Applicable
06/14/2026 07 PM PDT 8.77 40 0 Not Applicable
06/14/2026 08 PM PDT 8.77 40 0 Not Applicable
06/14/2026 09 PM PDT 8.77 40 0 Not Applicable
06/14/2026 10 PM PDT 8.77 40 0 Not Applicable
06/14/2026 11 PM PDT 8.77 40 0 Not Applicable
06/15/2026 12 AM PDT 8.77 40 0 Not Applicable
06/15/2026 01 AM PDT 8.77 40 0 Not Applicable
06/15/2026 02 AM PDT 8.77 40 0 Not Applicable
06/15/2026 03 AM PDT 8.77 40 0 Not Applicable
06/15/2026 04 AM PDT 8.77 40 0 Not Applicable
06/15/2026 05 AM PDT 8.77 40 0 Not Applicable
06/15/2026 06 AM PDT 8.77 40 0 Not Applicable
06/15/2026 07 AM PDT 8.77 40 0 Not Applicable
06/15/2026 08 AM PDT 8.77 40 0 Not Applicable
06/15/2026 09 AM PDT 8.77 40 0 Not Applicable
06/15/2026 10 AM PDT 8.77 40 0 Not Applicable
06/15/2026 11 AM PDT 8.77 40 0 Not Applicable
06/15/2026 12 PM PDT 8.77 40 0 Not Applicable
06/15/2026 01 PM PDT 8.77 40 0 Not Applicable
06/15/2026 02 PM PDT 8.77 40 0 Not Applicable
06/15/2026 03 PM PDT 8.77 40 0 Not Applicable
06/15/2026 04 PM PDT 8.77 40 0 Not Applicable
06/15/2026 05 PM PDT 8.77 40 0 Not Applicable
06/15/2026 06 PM PDT 8.76 39 - Not Applicable
06/15/2026 07 PM PDT 8.76 39 0 Not Applicable
06/15/2026 08 PM PDT 8.76 39 0 Not Applicable
06/15/2026 09 PM PDT 8.76 39 0 Not Applicable
06/15/2026 10 PM PDT 8.76 39 0 Not Applicable
06/15/2026 11 PM PDT 8.76 39 0 Not Applicable
06/16/2026 12 AM PDT 8.76 39 0 Not Applicable
06/16/2026 01 AM PDT 8.76 39 0 Not Applicable
06/16/2026 02 AM PDT 8.76 39 0 Not Applicable
06/16/2026 03 AM PDT 8.76 39 0 Not Applicable
06/16/2026 04 AM PDT 8.76 39 0 Not Applicable
06/16/2026 05 AM PDT 8.76 39 0 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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