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

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MATTOLE RIVER - ETTERSBURG (ETTC1)
Latitude: 40.14º NLongitude: 123.99º WElevation: 579 Feet
Location: Humboldt County in CaliforniaBulletin Group: North CoastRiver Group: North Coast
Issuance Time: Jul 26 2024 at 7:11 AM PDTNext Issuance: Jul 27 2024 at 9:00 AM PDT
Monitor Stage: N/A Flood Stage: N/A

# Tabular Observed and Forecast Hydrograph Information
#
# Location: Mattole River - Ettersburg (ETTC1)
#
# File Generation Time:  07/26/2024 at 07:12 AM PDT
# Data Interval:  1 Hour
#
# Most Recent Date & Time of Maximum Observed:  07/22/2024 at 03:00 PM PDT
# Maximum Observed Stage:                       9.20 Feet
# Maximum Observed Flow:                        9 cfs
#
# Earliest Date & Time of Maximum Forecast:     07/26/2024 at 08:00 AM PDT
# Maximum Forecast Stage:                       9.14 Feet
# Maximum Forecast Flow:                        7 cfs
#
# OBSERVED
#
# Date & Time  (Local)    Stage (Feet)     Flow (cfs)     Trend     Observed Status
# ---------------------------------------------------------------------------------
  07/21/2024 07 AM PDT            9.19              9                Not Applicable
  07/21/2024 08 AM PDT            9.19              9         0      Not Applicable
  07/21/2024 09 AM PDT            9.19              9         0      Not Applicable
  07/21/2024 10 AM PDT            9.20              9         +      Not Applicable
  07/21/2024 11 AM PDT            9.15              7         -      Not Applicable
  07/21/2024 12 PM PDT            9.11              6         -      Not Applicable
  07/21/2024 01 PM PDT            9.19              9         +      Not Applicable
  07/21/2024 02 PM PDT            9.16              8         -      Not Applicable
  07/21/2024 03 PM PDT            9.19              9         +      Not Applicable
  07/21/2024 04 PM PDT            9.19              9         0      Not Applicable
  07/21/2024 05 PM PDT            9.19              9         0      Not Applicable
  07/21/2024 06 PM PDT            9.18              9         -      Not Applicable
  07/21/2024 07 PM PDT            9.18              9         0      Not Applicable
  07/21/2024 08 PM PDT            9.18              9         0      Not Applicable
  07/21/2024 09 PM PDT            9.19              9         +      Not Applicable
  07/21/2024 10 PM PDT            9.19              9         0      Not Applicable
  07/21/2024 11 PM PDT            9.19              9         0      Not Applicable
  07/22/2024 12 AM PDT            9.19              9         0      Not Applicable
  07/22/2024 01 AM PDT            9.19              9         0      Not Applicable
  07/22/2024 02 AM PDT            9.19              9         0      Not Applicable
  07/22/2024 03 AM PDT            9.18              9         -      Not Applicable
  07/22/2024 04 AM PDT            9.18              9         0      Not Applicable
  07/22/2024 05 AM PDT            9.19              9         +      Not Applicable
  07/22/2024 06 AM PDT            9.19              9         0      Not Applicable
  07/22/2024 07 AM PDT            9.19              9         0      Not Applicable
  07/22/2024 08 AM PDT            9.19              9         0      Not Applicable
  07/22/2024 09 AM PDT            9.19              9         0      Not Applicable
  07/22/2024 10 AM PDT            9.20              9         +      Not Applicable
  07/22/2024 11 AM PDT            9.20              9         0      Not Applicable
  07/22/2024 12 PM PDT            9.20              9         0      Not Applicable
  07/22/2024 01 PM PDT            9.20              9         0      Not Applicable
  07/22/2024 02 PM PDT            9.20              9         0      Not Applicable
  07/22/2024 03 PM PDT            9.20              9         0      Not Applicable
  07/22/2024 04 PM PDT            9.19              9         -      Not Applicable
  07/22/2024 05 PM PDT            9.18              9         -      Not Applicable
  07/22/2024 06 PM PDT            9.18              9         0      Not Applicable
  07/22/2024 07 PM PDT            9.18              9         0      Not Applicable
  07/22/2024 08 PM PDT            9.18              9         0      Not Applicable
  07/22/2024 09 PM PDT            9.19              9         +      Not Applicable
  07/22/2024 10 PM PDT            9.19              9         0      Not Applicable
  07/22/2024 11 PM PDT            9.19              9         0      Not Applicable
  07/23/2024 12 AM PDT            9.19              9         0      Not Applicable
  07/23/2024 01 AM PDT            9.19              9         0      Not Applicable
  07/23/2024 02 AM PDT            9.19              9         0      Not Applicable
  07/23/2024 03 AM PDT            9.18              9         -      Not Applicable
  07/23/2024 04 AM PDT            9.18              9         0      Not Applicable
  07/23/2024 05 AM PDT            9.18              9         0      Not Applicable
  07/23/2024 06 AM PDT            9.18              9         0      Not Applicable
  07/23/2024 07 AM PDT            9.19              9         +      Not Applicable
  07/23/2024 08 AM PDT            9.18              9         -      Not Applicable
  07/23/2024 09 AM PDT            9.19              9         +      Not Applicable
  07/23/2024 10 AM PDT            9.19              9         0      Not Applicable
  07/23/2024 11 AM PDT            9.18              9         -      Not Applicable
  07/23/2024 12 PM PDT            9.18              9         0      Not Applicable
  07/23/2024 01 PM PDT            9.18              9         0      Not Applicable
  07/23/2024 02 PM PDT            9.17              8         -      Not Applicable
  07/23/2024 03 PM PDT            9.17              8         0      Not Applicable
  07/23/2024 04 PM PDT            9.17              8         0      Not Applicable
  07/23/2024 05 PM PDT            9.16              8         -      Not Applicable
  07/23/2024 06 PM PDT            9.17              8         +      Not Applicable
  07/23/2024 07 PM PDT            9.16              8         -      Not Applicable
  07/23/2024 08 PM PDT            9.17              8         +      Not Applicable
  07/23/2024 09 PM PDT            9.17              8         0      Not Applicable
  07/23/2024 10 PM PDT            9.17              8         0      Not Applicable
  07/23/2024 11 PM PDT            9.17              8         0      Not Applicable
  07/24/2024 12 AM PDT            9.17              8         0      Not Applicable
  07/24/2024 01 AM PDT            9.17              8         0      Not Applicable
  07/24/2024 02 AM PDT            9.17              8         0      Not Applicable
  07/24/2024 03 AM PDT            9.16              8         -      Not Applicable
  07/24/2024 04 AM PDT            9.17              8         +      Not Applicable
  07/24/2024 05 AM PDT            9.17              8         0      Not Applicable
  07/24/2024 06 AM PDT            9.17              8         0      Not Applicable
  07/24/2024 07 AM PDT            9.16              8         -      Not Applicable
  07/24/2024 08 AM PDT            9.17              8         +      Not Applicable
  07/24/2024 09 AM PDT            9.17              8         0      Not Applicable
  07/24/2024 10 AM PDT            9.17              8         0      Not Applicable
  07/24/2024 11 AM PDT            9.17              8         0      Not Applicable
  07/24/2024 12 PM PDT            9.16              8         -      Not Applicable
  07/24/2024 01 PM PDT            9.16              8         0      Not Applicable
  07/24/2024 02 PM PDT            9.07              5         -      Not Applicable
  07/24/2024 03 PM PDT            9.04              4         -      Not Applicable
  07/24/2024 04 PM PDT            9.15              7         +      Not Applicable
  07/24/2024 05 PM PDT            9.15              7         0      Not Applicable
  07/24/2024 06 PM PDT            9.15              7         0      Not Applicable
  07/24/2024 07 PM PDT            9.15              7         0      Not Applicable
  07/24/2024 08 PM PDT            9.15              7         0      Not Applicable
  07/24/2024 09 PM PDT            9.15              7         0      Not Applicable
  07/24/2024 10 PM PDT            9.15              7         0      Not Applicable
  07/24/2024 11 PM PDT            9.15              7         0      Not Applicable
  07/25/2024 12 AM PDT            9.16              8         +      Not Applicable
  07/25/2024 01 AM PDT            9.16              8         0      Not Applicable
  07/25/2024 02 AM PDT            9.15              7         -      Not Applicable
  07/25/2024 03 AM PDT            9.15              7         0      Not Applicable
  07/25/2024 04 AM PDT            9.15              7         0      Not Applicable
  07/25/2024 05 AM PDT            9.15              7         0      Not Applicable
  07/25/2024 06 AM PDT            9.15              7         0      Not Applicable
  07/25/2024 07 AM PDT            9.15              7         0      Not Applicable
  07/25/2024 08 AM PDT            9.15              7         0      Not Applicable
  07/25/2024 09 AM PDT            9.15              7         0      Not Applicable
  07/25/2024 10 AM PDT            9.16              8         +      Not Applicable
  07/25/2024 11 AM PDT            9.15              7         -      Not Applicable
  07/25/2024 12 PM PDT            9.15              7         0      Not Applicable
  07/25/2024 01 PM PDT            9.15              7         0      Not Applicable
  07/25/2024 02 PM PDT            9.15              7         0      Not Applicable
  07/25/2024 03 PM PDT            9.08              5         -      Not Applicable
  07/25/2024 04 PM PDT            9.08              5         0      Not Applicable
  07/25/2024 05 PM PDT            9.14              7         +      Not Applicable
  07/25/2024 06 PM PDT            9.13              7         -      Not Applicable
  07/25/2024 07 PM PDT            9.14              7         +      Not Applicable
  07/25/2024 08 PM PDT            9.14              7         0      Not Applicable
  07/25/2024 09 PM PDT            9.14              7         0      Not Applicable
  07/25/2024 10 PM PDT            9.14              7         0      Not Applicable
  07/25/2024 11 PM PDT            9.14              7         0      Not Applicable
  07/26/2024 12 AM PDT            9.14              7         0      Not Applicable
  07/26/2024 01 AM PDT            9.14              7         0      Not Applicable
  07/26/2024 02 AM PDT            9.14              7         0      Not Applicable
  07/26/2024 03 AM PDT            9.14              7         0      Not Applicable
  07/26/2024 04 AM PDT            9.14              7         0      Not Applicable
  07/26/2024 05 AM PDT            9.14              7         0      Not Applicable
  07/26/2024 06 AM PDT            9.14              7         0      Not Applicable
  07/26/2024 07 AM PDT            9.14              7         0      Not Applicable
#
# FORECAST
#
# Date & Time  (Local)    Stage (Feet)     Flow (cfs)     Trend     Forecast Status
# ---------------------------------------------------------------------------------
  07/26/2024 08 AM PDT            9.14              7                Not Applicable
  07/26/2024 09 AM PDT            9.14              7         0      Not Applicable
  07/26/2024 10 AM PDT            9.14              7         0      Not Applicable
  07/26/2024 11 AM PDT            9.14              7         0      Not Applicable
  07/26/2024 12 PM PDT            9.14              7         0      Not Applicable
  07/26/2024 01 PM PDT            9.14              7         0      Not Applicable
  07/26/2024 02 PM PDT            9.14              7         0      Not Applicable
  07/26/2024 03 PM PDT            9.14              7         0      Not Applicable
  07/26/2024 04 PM PDT            9.14              7         0      Not Applicable
  07/26/2024 05 PM PDT            9.14              7         0      Not Applicable
  07/26/2024 06 PM PDT            9.14              7         0      Not Applicable
  07/26/2024 07 PM PDT            9.13              7         -      Not Applicable
  07/26/2024 08 PM PDT            9.13              7         0      Not Applicable
  07/26/2024 09 PM PDT            9.13              7         0      Not Applicable
  07/26/2024 10 PM PDT            9.13              7         0      Not Applicable
  07/26/2024 11 PM PDT            9.13              7         0      Not Applicable
  07/27/2024 12 AM PDT            9.13              7         0      Not Applicable
  07/27/2024 01 AM PDT            9.13              7         0      Not Applicable
  07/27/2024 02 AM PDT            9.13              7         0      Not Applicable
  07/27/2024 03 AM PDT            9.13              7         0      Not Applicable
  07/27/2024 04 AM PDT            9.13              7         0      Not Applicable
  07/27/2024 05 AM PDT            9.13              7         0      Not Applicable
  07/27/2024 06 AM PDT            9.13              7         0      Not Applicable
  07/27/2024 07 AM PDT            9.13              7         0      Not Applicable
  07/27/2024 08 AM PDT            9.13              7         0      Not Applicable
  07/27/2024 09 AM PDT            9.13              7         0      Not Applicable
  07/27/2024 10 AM PDT            9.13              7         0      Not Applicable
  07/27/2024 11 AM PDT            9.13              7         0      Not Applicable
  07/27/2024 12 PM PDT            9.13              7         0      Not Applicable
  07/27/2024 01 PM PDT            9.13              7         0      Not Applicable
  07/27/2024 02 PM PDT            9.13              7         0      Not Applicable
  07/27/2024 03 PM PDT            9.13              7         0      Not Applicable
  07/27/2024 04 PM PDT            9.13              7         0      Not Applicable
  07/27/2024 05 PM PDT            9.13              7         0      Not Applicable
  07/27/2024 06 PM PDT            9.13              7         0      Not Applicable
  07/27/2024 07 PM PDT            9.13              7         0      Not Applicable
  07/27/2024 08 PM PDT            9.13              7         0      Not Applicable
  07/27/2024 09 PM PDT            9.13              7         0      Not Applicable
  07/27/2024 10 PM PDT            9.13              7         0      Not Applicable
  07/27/2024 11 PM PDT            9.13              7         0      Not Applicable
  07/28/2024 12 AM PDT            9.13              7         0      Not Applicable
  07/28/2024 01 AM PDT            9.13              7         0      Not Applicable
  07/28/2024 02 AM PDT            9.13              7         0      Not Applicable
  07/28/2024 03 AM PDT            9.12              6         -      Not Applicable
  07/28/2024 04 AM PDT            9.12              6         0      Not Applicable
  07/28/2024 05 AM PDT            9.12              6         0      Not Applicable
  07/28/2024 06 AM PDT            9.12              6         0      Not Applicable
  07/28/2024 07 AM PDT            9.12              6         0      Not Applicable
  07/28/2024 08 AM PDT            9.12              6         0      Not Applicable
  07/28/2024 09 AM PDT            9.12              6         0      Not Applicable
  07/28/2024 10 AM PDT            9.12              6         0      Not Applicable
  07/28/2024 11 AM PDT            9.12              6         0      Not Applicable
  07/28/2024 12 PM PDT            9.12              6         0      Not Applicable
  07/28/2024 01 PM PDT            9.12              6         0      Not Applicable
  07/28/2024 02 PM PDT            9.12              6         0      Not Applicable
  07/28/2024 03 PM PDT            9.12              6         0      Not Applicable
  07/28/2024 04 PM PDT            9.12              6         0      Not Applicable
  07/28/2024 05 PM PDT            9.12              6         0      Not Applicable
  07/28/2024 06 PM PDT            9.12              6         0      Not Applicable
  07/28/2024 07 PM PDT            9.12              6         0      Not Applicable
  07/28/2024 08 PM PDT            9.12              6         0      Not Applicable
  07/28/2024 09 PM PDT            9.12              6         0      Not Applicable
  07/28/2024 10 PM PDT            9.12              6         0      Not Applicable
  07/28/2024 11 PM PDT            9.12              6         0      Not Applicable
  07/29/2024 12 AM PDT            9.12              6         0      Not Applicable
  07/29/2024 01 AM PDT            9.12              6         0      Not Applicable
  07/29/2024 02 AM PDT            9.12              6         0      Not Applicable
  07/29/2024 03 AM PDT            9.12              6         0      Not Applicable
  07/29/2024 04 AM PDT            9.12              6         0      Not Applicable
  07/29/2024 05 AM PDT            9.12              6         0      Not Applicable
  07/29/2024 06 AM PDT            9.12              6         0      Not Applicable
  07/29/2024 07 AM PDT            9.12              6         0      Not Applicable
  07/29/2024 08 AM PDT            9.12              6         0      Not Applicable
  07/29/2024 09 AM PDT            9.12              6         0      Not Applicable
  07/29/2024 10 AM PDT            9.12              6         0      Not Applicable
  07/29/2024 11 AM PDT            9.11              6         -      Not Applicable
  07/29/2024 12 PM PDT            9.11              6         0      Not Applicable
  07/29/2024 01 PM PDT            9.11              6         0      Not Applicable
  07/29/2024 02 PM PDT            9.11              6         0      Not Applicable
  07/29/2024 03 PM PDT            9.11              6         0      Not Applicable
  07/29/2024 04 PM PDT            9.11              6         0      Not Applicable
  07/29/2024 05 PM PDT            9.11              6         0      Not Applicable
  07/29/2024 06 PM PDT            9.11              6         0      Not Applicable
  07/29/2024 07 PM PDT            9.11              6         0      Not Applicable
  07/29/2024 08 PM PDT            9.11              6         0      Not Applicable
  07/29/2024 09 PM PDT            9.11              6         0      Not Applicable
  07/29/2024 10 PM PDT            9.11              6         0      Not Applicable
  07/29/2024 11 PM PDT            9.11              6         0      Not Applicable
  07/30/2024 12 AM PDT            9.11              6         0      Not Applicable
  07/30/2024 01 AM PDT            9.11              6         0      Not Applicable
  07/30/2024 02 AM PDT            9.11              6         0      Not Applicable
  07/30/2024 03 AM PDT            9.11              6         0      Not Applicable
  07/30/2024 04 AM PDT            9.11              6         0      Not Applicable
  07/30/2024 05 AM PDT            9.11              6         0      Not Applicable
  07/30/2024 06 AM PDT            9.11              6         0      Not Applicable
  07/30/2024 07 AM PDT            9.11              6         0      Not Applicable
  07/30/2024 08 AM PDT            9.11              6         0      Not Applicable
  07/30/2024 09 AM PDT            9.11              6         0      Not Applicable
  07/30/2024 10 AM PDT            9.11              6         0      Not Applicable
  07/30/2024 11 AM PDT            9.11              6         0      Not Applicable
  07/30/2024 12 PM PDT            9.11              6         0      Not Applicable
  07/30/2024 01 PM PDT            9.11              6         0      Not Applicable
  07/30/2024 02 PM PDT            9.11              6         0      Not Applicable
  07/30/2024 03 PM PDT            9.11              6         0      Not Applicable
  07/30/2024 04 PM PDT            9.11              6         0      Not Applicable
  07/30/2024 05 PM PDT            9.11              6         0      Not Applicable
  07/30/2024 06 PM PDT            9.10              6         -      Not Applicable
  07/30/2024 07 PM PDT            9.10              6         0      Not Applicable
  07/30/2024 08 PM PDT            9.10              6         0      Not Applicable
  07/30/2024 09 PM PDT            9.10              6         0      Not Applicable
  07/30/2024 10 PM PDT            9.10              6         0      Not Applicable
  07/30/2024 11 PM PDT            9.10              6         0      Not Applicable
  07/31/2024 12 AM PDT            9.10              6         0      Not Applicable
  07/31/2024 01 AM PDT            9.10              6         0      Not Applicable
  07/31/2024 02 AM PDT            9.10              6         0      Not Applicable
  07/31/2024 03 AM PDT            9.10              6         0      Not Applicable
  07/31/2024 04 AM PDT            9.10              6         0      Not Applicable
  07/31/2024 05 AM PDT            9.10              6         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.