National Weather Service California-Nevada River Forecast Center Department of Commerce National Oceanic and Atmospheric Administration National Weather Service

 | 

MATTOLE RIVER - ETTERSBURG (ETTC1)
Latitude: 40.14º NLongitude: 123.99º WElevation: 579 FeetForecast Type: Unofficial Location
Location: Humboldt County in CaliforniaBulletin Group: North CoastRiver Group: North Coast
Issuance Time: Jun 11 2026 at 7:27 AM PDTNext 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.