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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 02 2026 at 7:13 AM PDT | Next Issuance: | Jun 03 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: 06/02/2026 at 07:16 AM PDT
# Data Interval: 1 Hour
#
# Most Recent Date & Time of Maximum Observed: 05/28/2026 at 03:00 PM PDT
# Maximum Observed Stage: 8.81 Feet
# Maximum Observed Flow: 44 cfs
#
# Earliest Date & Time of Maximum Forecast: 06/02/2026 at 08:00 AM PDT
# Maximum Forecast Stage: 8.73 Feet
# Maximum Forecast Flow: 37 cfs
#
# OBSERVED
#
# Date & Time (Local) Stage (Feet) Flow (cfs) Trend Observed Status
# ---------------------------------------------------------------------------------
05/28/2026 07 AM PDT 8.80 43 Not Applicable
05/28/2026 08 AM PDT 8.81 44 + Not Applicable
05/28/2026 09 AM PDT 8.80 43 - Not Applicable
05/28/2026 10 AM PDT 8.81 44 + Not Applicable
05/28/2026 11 AM PDT 8.81 44 0 Not Applicable
05/28/2026 12 PM PDT 8.81 44 0 Not Applicable
05/28/2026 01 PM PDT 8.81 44 0 Not Applicable
05/28/2026 02 PM PDT 8.81 44 0 Not Applicable
05/28/2026 03 PM PDT 8.81 44 0 Not Applicable
05/28/2026 04 PM PDT 8.80 43 - Not Applicable
05/28/2026 05 PM PDT 8.80 43 0 Not Applicable
05/28/2026 06 PM PDT 8.80 43 0 Not Applicable
05/28/2026 07 PM PDT 8.80 43 0 Not Applicable
05/28/2026 08 PM PDT 8.79 42 - Not Applicable
05/28/2026 09 PM PDT 8.79 42 0 Not Applicable
05/28/2026 10 PM PDT 8.79 42 0 Not Applicable
05/28/2026 11 PM PDT 8.79 42 0 Not Applicable
05/29/2026 12 AM PDT 8.79 42 0 Not Applicable
05/29/2026 01 AM PDT 8.79 42 0 Not Applicable
05/29/2026 02 AM PDT 8.79 42 0 Not Applicable
05/29/2026 03 AM PDT 8.78 41 - Not Applicable
05/29/2026 04 AM PDT 8.79 42 + Not Applicable
05/29/2026 05 AM PDT 8.79 42 0 Not Applicable
05/29/2026 06 AM PDT 8.78 41 - Not Applicable
05/29/2026 07 AM PDT 8.79 42 + Not Applicable
05/29/2026 08 AM PDT 8.79 42 0 Not Applicable
05/29/2026 09 AM PDT 8.79 42 0 Not Applicable
05/29/2026 10 AM PDT 8.79 42 0 Not Applicable
05/29/2026 11 AM PDT 8.79 42 0 Not Applicable
05/29/2026 12 PM PDT 8.79 42 0 Not Applicable
05/29/2026 01 PM PDT 8.80 43 + Not Applicable
05/29/2026 02 PM PDT 8.79 42 - Not Applicable
05/29/2026 03 PM PDT 8.79 42 0 Not Applicable
05/29/2026 04 PM PDT 8.79 42 0 Not Applicable
05/29/2026 05 PM PDT 8.79 42 0 Not Applicable
05/29/2026 06 PM PDT 8.78 41 - Not Applicable
05/29/2026 07 PM PDT 8.78 41 0 Not Applicable
05/29/2026 08 PM PDT 8.78 41 0 Not Applicable
05/29/2026 09 PM PDT 8.78 41 0 Not Applicable
05/29/2026 10 PM PDT 8.77 40 - Not Applicable
05/29/2026 11 PM PDT 8.77 40 0 Not Applicable
05/30/2026 12 AM PDT 8.77 40 0 Not Applicable
05/30/2026 01 AM PDT 8.77 40 0 Not Applicable
05/30/2026 02 AM PDT 8.77 40 0 Not Applicable
05/30/2026 03 AM PDT 8.77 40 0 Not Applicable
05/30/2026 04 AM PDT 8.77 40 0 Not Applicable
05/30/2026 05 AM PDT 8.77 40 0 Not Applicable
05/30/2026 06 AM PDT 8.77 40 0 Not Applicable
05/30/2026 07 AM PDT 8.77 40 0 Not Applicable
05/30/2026 08 AM PDT 8.77 40 0 Not Applicable
05/30/2026 09 AM PDT 8.77 40 0 Not Applicable
05/30/2026 10 AM PDT 8.77 40 0 Not Applicable
05/30/2026 11 AM PDT 8.77 40 0 Not Applicable
05/30/2026 12 PM PDT 8.78 41 + Not Applicable
05/30/2026 01 PM PDT 8.77 40 - Not Applicable
05/30/2026 02 PM PDT 8.78 41 + Not Applicable
05/30/2026 03 PM PDT 8.78 41 0 Not Applicable
05/30/2026 04 PM PDT 8.77 40 - Not Applicable
05/30/2026 05 PM PDT 8.77 40 0 Not Applicable
05/30/2026 06 PM PDT 8.77 40 0 Not Applicable
05/30/2026 07 PM PDT 8.77 40 0 Not Applicable
05/30/2026 08 PM PDT 8.76 39 - Not Applicable
05/30/2026 09 PM PDT 8.76 39 0 Not Applicable
05/30/2026 10 PM PDT 8.76 39 0 Not Applicable
05/30/2026 11 PM PDT 8.76 39 0 Not Applicable
05/31/2026 12 AM PDT 8.76 39 0 Not Applicable
05/31/2026 01 AM PDT 8.75 38 - Not Applicable
05/31/2026 02 AM PDT 8.75 38 0 Not Applicable
05/31/2026 03 AM PDT 8.75 38 0 Not Applicable
05/31/2026 04 AM PDT 8.75 38 0 Not Applicable
05/31/2026 05 AM PDT 8.75 38 0 Not Applicable
05/31/2026 06 AM PDT 8.75 38 0 Not Applicable
05/31/2026 07 AM PDT 8.75 38 0 Not Applicable
05/31/2026 08 AM PDT 8.75 38 0 Not Applicable
05/31/2026 09 AM PDT 8.75 38 0 Not Applicable
05/31/2026 10 AM PDT 8.76 39 + Not Applicable
05/31/2026 11 AM PDT 8.76 39 0 Not Applicable
05/31/2026 12 PM PDT 8.76 39 0 Not Applicable
05/31/2026 01 PM PDT 8.77 40 + Not Applicable
05/31/2026 02 PM PDT 8.76 39 - Not Applicable
05/31/2026 03 PM PDT 8.76 39 0 Not Applicable
05/31/2026 04 PM PDT 8.76 39 0 Not Applicable
05/31/2026 05 PM PDT 8.76 39 0 Not Applicable
05/31/2026 06 PM PDT 8.76 39 0 Not Applicable
05/31/2026 07 PM PDT 8.75 38 - Not Applicable
05/31/2026 08 PM PDT 8.75 38 0 Not Applicable
05/31/2026 09 PM PDT 8.75 38 0 Not Applicable
05/31/2026 10 PM PDT 8.75 38 0 Not Applicable
05/31/2026 11 PM PDT 8.75 38 0 Not Applicable
06/01/2026 12 AM PDT 8.74 38 - Not Applicable
06/01/2026 01 AM PDT 8.74 38 0 Not Applicable
06/01/2026 02 AM PDT 8.74 38 0 Not Applicable
06/01/2026 03 AM PDT 8.74 38 0 Not Applicable
06/01/2026 04 AM PDT 8.74 38 0 Not Applicable
06/01/2026 05 AM PDT 8.74 38 0 Not Applicable
06/01/2026 06 AM PDT 8.74 38 0 Not Applicable
06/01/2026 07 AM PDT 8.74 38 0 Not Applicable
06/01/2026 08 AM PDT 8.74 38 0 Not Applicable
06/01/2026 09 AM PDT 8.75 38 + Not Applicable
06/01/2026 10 AM PDT 8.75 38 0 Not Applicable
06/01/2026 11 AM PDT 8.75 38 0 Not Applicable
06/01/2026 12 PM PDT 8.75 38 0 Not Applicable
06/01/2026 01 PM PDT 8.75 38 0 Not Applicable
06/01/2026 02 PM PDT 8.76 39 + Not Applicable
06/01/2026 03 PM PDT 8.75 38 - Not Applicable
06/01/2026 04 PM PDT 8.75 38 0 Not Applicable
06/01/2026 05 PM PDT 8.75 38 0 Not Applicable
06/01/2026 06 PM PDT 8.75 38 0 Not Applicable
06/01/2026 07 PM PDT 8.75 38 0 Not Applicable
06/01/2026 08 PM PDT 8.74 38 - Not Applicable
06/01/2026 09 PM PDT 8.74 38 0 Not Applicable
06/01/2026 10 PM PDT 8.74 38 0 Not Applicable
06/01/2026 11 PM PDT 8.73 37 - Not Applicable
06/02/2026 12 AM PDT 8.73 37 0 Not Applicable
06/02/2026 01 AM PDT 8.73 37 0 Not Applicable
06/02/2026 02 AM PDT 8.73 37 0 Not Applicable
06/02/2026 03 AM PDT 8.73 37 0 Not Applicable
06/02/2026 04 AM PDT 8.73 37 0 Not Applicable
06/02/2026 05 AM PDT 8.73 37 0 Not Applicable
06/02/2026 06 AM PDT 8.73 37 0 Not Applicable
06/02/2026 07 AM PDT 8.73 37 0 Not Applicable
#
# FORECAST
#
# Date & Time (Local) Stage (Feet) Flow (cfs) Trend Forecast Status
# ---------------------------------------------------------------------------------
06/02/2026 08 AM PDT 8.73 37 Not Applicable
06/02/2026 09 AM PDT 8.73 37 0 Not Applicable
06/02/2026 10 AM PDT 8.73 37 0 Not Applicable
06/02/2026 11 AM PDT 8.73 37 0 Not Applicable
06/02/2026 12 PM PDT 8.73 37 0 Not Applicable
06/02/2026 01 PM PDT 8.73 37 0 Not Applicable
06/02/2026 02 PM PDT 8.73 37 0 Not Applicable
06/02/2026 03 PM PDT 8.73 37 0 Not Applicable
06/02/2026 04 PM PDT 8.73 37 0 Not Applicable
06/02/2026 05 PM PDT 8.73 37 0 Not Applicable
06/02/2026 06 PM PDT 8.73 37 0 Not Applicable
06/02/2026 07 PM PDT 8.73 37 0 Not Applicable
06/02/2026 08 PM PDT 8.72 36 - Not Applicable
06/02/2026 09 PM PDT 8.72 36 0 Not Applicable
06/02/2026 10 PM PDT 8.72 36 0 Not Applicable
06/02/2026 11 PM PDT 8.72 36 0 Not Applicable
06/03/2026 12 AM PDT 8.72 36 0 Not Applicable
06/03/2026 01 AM PDT 8.72 36 0 Not Applicable
06/03/2026 02 AM PDT 8.72 36 0 Not Applicable
06/03/2026 03 AM PDT 8.72 36 0 Not Applicable
06/03/2026 04 AM PDT 8.72 36 0 Not Applicable
06/03/2026 05 AM PDT 8.72 36 0 Not Applicable
06/03/2026 06 AM PDT 8.72 36 0 Not Applicable
06/03/2026 07 AM PDT 8.72 36 0 Not Applicable
06/03/2026 08 AM PDT 8.72 36 0 Not Applicable
06/03/2026 09 AM PDT 8.72 36 0 Not Applicable
06/03/2026 10 AM PDT 8.72 36 0 Not Applicable
06/03/2026 11 AM PDT 8.72 36 0 Not Applicable
06/03/2026 12 PM PDT 8.72 36 0 Not Applicable
06/03/2026 01 PM PDT 8.72 36 0 Not Applicable
06/03/2026 02 PM PDT 8.72 36 0 Not Applicable
06/03/2026 03 PM PDT 8.72 36 0 Not Applicable
06/03/2026 04 PM PDT 8.72 36 0 Not Applicable
06/03/2026 05 PM PDT 8.72 36 0 Not Applicable
06/03/2026 06 PM PDT 8.72 36 0 Not Applicable
06/03/2026 07 PM PDT 8.72 36 0 Not Applicable
06/03/2026 08 PM PDT 8.72 36 0 Not Applicable
06/03/2026 09 PM PDT 8.72 36 0 Not Applicable
06/03/2026 10 PM PDT 8.72 36 0 Not Applicable
06/03/2026 11 PM PDT 8.72 36 0 Not Applicable
06/04/2026 12 AM PDT 8.72 36 0 Not Applicable
06/04/2026 01 AM PDT 8.72 36 0 Not Applicable
06/04/2026 02 AM PDT 8.72 36 0 Not Applicable
06/04/2026 03 AM PDT 8.72 36 0 Not Applicable
06/04/2026 04 AM PDT 8.72 36 0 Not Applicable
06/04/2026 05 AM PDT 8.71 35 - Not Applicable
06/04/2026 06 AM PDT 8.71 35 0 Not Applicable
06/04/2026 07 AM PDT 8.71 35 0 Not Applicable
06/04/2026 08 AM PDT 8.71 35 0 Not Applicable
06/04/2026 09 AM PDT 8.71 35 0 Not Applicable
06/04/2026 10 AM PDT 8.71 35 0 Not Applicable
06/04/2026 11 AM PDT 8.71 35 0 Not Applicable
06/04/2026 12 PM PDT 8.71 35 0 Not Applicable
06/04/2026 01 PM PDT 8.71 35 0 Not Applicable
06/04/2026 02 PM PDT 8.71 35 0 Not Applicable
06/04/2026 03 PM PDT 8.71 35 0 Not Applicable
06/04/2026 04 PM PDT 8.71 35 0 Not Applicable
06/04/2026 05 PM PDT 8.71 35 0 Not Applicable
06/04/2026 06 PM PDT 8.71 35 0 Not Applicable
06/04/2026 07 PM PDT 8.71 35 0 Not Applicable
06/04/2026 08 PM PDT 8.71 35 0 Not Applicable
06/04/2026 09 PM PDT 8.71 35 0 Not Applicable
06/04/2026 10 PM PDT 8.71 35 0 Not Applicable
06/04/2026 11 PM PDT 8.71 35 0 Not Applicable
06/05/2026 12 AM PDT 8.71 35 0 Not Applicable
06/05/2026 01 AM PDT 8.71 35 0 Not Applicable
06/05/2026 02 AM PDT 8.71 35 0 Not Applicable
06/05/2026 03 AM PDT 8.71 35 0 Not Applicable
06/05/2026 04 AM PDT 8.71 35 0 Not Applicable
06/05/2026 05 AM PDT 8.71 35 0 Not Applicable
06/05/2026 06 AM PDT 8.71 35 0 Not Applicable
06/05/2026 07 AM PDT 8.71 35 0 Not Applicable
06/05/2026 08 AM PDT 8.71 35 0 Not Applicable
06/05/2026 09 AM PDT 8.71 35 0 Not Applicable
06/05/2026 10 AM PDT 8.71 35 0 Not Applicable
06/05/2026 11 AM PDT 8.71 35 0 Not Applicable
06/05/2026 12 PM PDT 8.71 35 0 Not Applicable
06/05/2026 01 PM PDT 8.71 35 0 Not Applicable
06/05/2026 02 PM PDT 8.71 35 0 Not Applicable
06/05/2026 03 PM PDT 8.71 35 0 Not Applicable
06/05/2026 04 PM PDT 8.71 35 0 Not Applicable
06/05/2026 05 PM PDT 8.71 35 0 Not Applicable
06/05/2026 06 PM PDT 8.70 34 - Not Applicable
06/05/2026 07 PM PDT 8.70 34 0 Not Applicable
06/05/2026 08 PM PDT 8.70 34 0 Not Applicable
06/05/2026 09 PM PDT 8.70 34 0 Not Applicable
06/05/2026 10 PM PDT 8.70 34 0 Not Applicable
06/05/2026 11 PM PDT 8.70 34 0 Not Applicable
06/06/2026 12 AM PDT 8.70 34 0 Not Applicable
06/06/2026 01 AM PDT 8.70 34 0 Not Applicable
06/06/2026 02 AM PDT 8.70 34 0 Not Applicable
06/06/2026 03 AM PDT 8.70 34 0 Not Applicable
06/06/2026 04 AM PDT 8.70 34 0 Not Applicable
06/06/2026 05 AM PDT 8.70 34 0 Not Applicable
06/06/2026 06 AM PDT 8.70 34 0 Not Applicable
06/06/2026 07 AM PDT 8.70 34 0 Not Applicable
06/06/2026 08 AM PDT 8.70 34 0 Not Applicable
06/06/2026 09 AM PDT 8.70 34 0 Not Applicable
06/06/2026 10 AM PDT 8.70 34 0 Not Applicable
06/06/2026 11 AM PDT 8.70 34 0 Not Applicable
06/06/2026 12 PM PDT 8.70 34 0 Not Applicable
06/06/2026 01 PM PDT 8.70 34 0 Not Applicable
06/06/2026 02 PM PDT 8.70 34 0 Not Applicable
06/06/2026 03 PM PDT 8.70 34 0 Not Applicable
06/06/2026 04 PM PDT 8.70 34 0 Not Applicable
06/06/2026 05 PM PDT 8.70 34 0 Not Applicable
06/06/2026 06 PM PDT 8.70 34 0 Not Applicable
06/06/2026 07 PM PDT 8.70 34 0 Not Applicable
06/06/2026 08 PM PDT 8.70 34 0 Not Applicable
06/06/2026 09 PM PDT 8.70 34 0 Not Applicable
06/06/2026 10 PM PDT 8.70 34 0 Not Applicable
06/06/2026 11 PM PDT 8.70 34 0 Not Applicable
06/07/2026 12 AM PDT 8.70 34 0 Not Applicable
06/07/2026 01 AM PDT 8.70 34 0 Not Applicable
06/07/2026 02 AM PDT 8.70 34 0 Not Applicable
06/07/2026 03 AM PDT 8.69 33 - Not Applicable
06/07/2026 04 AM PDT 8.69 33 0 Not Applicable
06/07/2026 05 AM PDT 8.69 33 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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