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 - PETROLIA (MTOC1)
Latitude: 40.31º NLongitude: 124.28º WElevation: 40 Feet
Location: Humboldt County in CaliforniaBulletin Group: North CoastRiver Group: North Coast
Issuance Time: Apr 19 2024 at 8:06 AM PDTNext Issuance: Apr 20 2024 at 9:00 AM PDT
Monitor Stage: N/A Flood Stage: N/A

# Tabular Observed and Forecast Hydrograph Information
#
# Location: Mattole River - Petrolia (MTOC1)
#
# File Generation Time:  04/19/2024 at 08:07 AM PDT
# Data Interval:  1 Hour
#
# Most Recent Date & Time of Maximum Observed:  04/14/2024 at 08:00 PM PDT
# Maximum Observed Stage:                       13.0 Feet
# Maximum Observed Flow:                        693 cfs
#
# Earliest Date & Time of Maximum Forecast:     04/19/2024 at 08:00 AM PDT
# Maximum Forecast Stage:                       12.8 Feet
# Maximum Forecast Flow:                        522 cfs
#
# OBSERVED
#
# Date & Time  (Local)    Stage (Feet)     Flow (cfs)     Trend     Observed Status
# ---------------------------------------------------------------------------------
  04/14/2024 08 AM PDT            12.9            667                Not Applicable
  04/14/2024 09 AM PDT            12.9            667         0      Not Applicable
  04/14/2024 10 AM PDT            12.9            675         +      Not Applicable
  04/14/2024 11 AM PDT            12.9            675         0      Not Applicable
  04/14/2024 12 PM PDT            13.0            684         +      Not Applicable
  04/14/2024 01 PM PDT            13.0            684         0      Not Applicable
  04/14/2024 02 PM PDT            13.0            684         0      Not Applicable
  04/14/2024 03 PM PDT            13.0            684         0      Not Applicable
  04/14/2024 04 PM PDT            13.0            684         0      Not Applicable
  04/14/2024 05 PM PDT            13.0            684         0      Not Applicable
  04/14/2024 06 PM PDT            13.0            693         +      Not Applicable
  04/14/2024 07 PM PDT            13.0            693         0      Not Applicable
  04/14/2024 08 PM PDT            13.0            693         0      Not Applicable
  04/14/2024 09 PM PDT            13.0            684         -      Not Applicable
  04/14/2024 10 PM PDT            13.0            684         0      Not Applicable
  04/14/2024 11 PM PDT            13.0            684         0      Not Applicable
  04/15/2024 12 AM PDT            12.9            675         -      Not Applicable
  04/15/2024 01 AM PDT            12.9            675         0      Not Applicable
  04/15/2024 02 AM PDT            12.9            675         0      Not Applicable
  04/15/2024 03 AM PDT            12.9            667         -      Not Applicable
  04/15/2024 04 AM PDT            12.9            667         0      Not Applicable
  04/15/2024 05 AM PDT            12.9            659         -      Not Applicable
  04/15/2024 06 AM PDT            12.9            667         +      Not Applicable
  04/15/2024 07 AM PDT            12.9            667         0      Not Applicable
  04/15/2024 08 AM PDT            12.9            659         -      Not Applicable
  04/15/2024 09 AM PDT            12.9            659         0      Not Applicable
  04/15/2024 10 AM PDT            12.9            659         0      Not Applicable
  04/15/2024 11 AM PDT            12.9            651         -      Not Applicable
  04/15/2024 12 PM PDT            12.9            642         -      Not Applicable
  04/15/2024 01 PM PDT            12.9            642         0      Not Applicable
  04/15/2024 02 PM PDT            12.9            642         0      Not Applicable
  04/15/2024 03 PM PDT            12.9            651         +      Not Applicable
  04/15/2024 04 PM PDT            12.9            642         -      Not Applicable
  04/15/2024 05 PM PDT            12.9            634         -      Not Applicable
  04/15/2024 06 PM PDT            12.9            642         +      Not Applicable
  04/15/2024 07 PM PDT            12.9            634         -      Not Applicable
  04/15/2024 08 PM PDT            12.9            618         -      Not Applicable
  04/15/2024 09 PM PDT            12.9            626         +      Not Applicable
  04/15/2024 10 PM PDT            12.9            610         -      Not Applicable
  04/15/2024 11 PM PDT            12.9            618         +      Not Applicable
  04/16/2024 12 AM PDT            12.9            618         0      Not Applicable
  04/16/2024 01 AM PDT            12.9            610         -      Not Applicable
  04/16/2024 02 AM PDT            12.9            610         0      Not Applicable
  04/16/2024 03 AM PDT            12.9            610         0      Not Applicable
  04/16/2024 04 AM PDT            12.9            603         -      Not Applicable
  04/16/2024 05 AM PDT            12.9            610         +      Not Applicable
  04/16/2024 06 AM PDT            12.9            603         -      Not Applicable
  04/16/2024 07 AM PDT            12.8            595         -      Not Applicable
  04/16/2024 08 AM PDT            12.9            603         +      Not Applicable
  04/16/2024 09 AM PDT            12.8            595         -      Not Applicable
  04/16/2024 10 AM PDT            12.9            603         +      Not Applicable
  04/16/2024 11 AM PDT            12.8            595         -      Not Applicable
  04/16/2024 12 PM PDT            12.8            595         0      Not Applicable
  04/16/2024 01 PM PDT            12.8            595         0      Not Applicable
  04/16/2024 02 PM PDT            12.8            595         0      Not Applicable
  04/16/2024 03 PM PDT            12.8            587         -      Not Applicable
  04/16/2024 04 PM PDT            12.8            587         0      Not Applicable
  04/16/2024 05 PM PDT            12.8            587         0      Not Applicable
  04/16/2024 06 PM PDT            12.8            580         -      Not Applicable
  04/16/2024 07 PM PDT            12.8            587         +      Not Applicable
  04/16/2024 08 PM PDT            12.8            580         -      Not Applicable
  04/16/2024 09 PM PDT            12.8            580         0      Not Applicable
  04/16/2024 10 PM PDT            12.8            580         0      Not Applicable
  04/16/2024 11 PM PDT            12.8            580         0      Not Applicable
  04/17/2024 12 AM PDT            12.8            572         -      Not Applicable
  04/17/2024 01 AM PDT            12.8            572         0      Not Applicable
  04/17/2024 02 AM PDT            12.8            572         0      Not Applicable
  04/17/2024 03 AM PDT            12.8            565         -      Not Applicable
  04/17/2024 04 AM PDT            12.8            565         0      Not Applicable
  04/17/2024 05 AM PDT            12.8            565         0      Not Applicable
  04/17/2024 06 AM PDT            12.8            572         +      Not Applicable
  04/17/2024 07 AM PDT            12.8            565         -      Not Applicable
  04/17/2024 08 AM PDT            12.8            565         0      Not Applicable
  04/17/2024 09 AM PDT            12.8            572         +      Not Applicable
  04/17/2024 10 AM PDT            12.8            565         -      Not Applicable
  04/17/2024 11 AM PDT            12.8            558         -      Not Applicable
  04/17/2024 12 PM PDT            12.8            565         +      Not Applicable
  04/17/2024 01 PM PDT            12.8            558         -      Not Applicable
  04/17/2024 02 PM PDT            12.8            565         +      Not Applicable
  04/17/2024 03 PM PDT            12.8            558         -      Not Applicable
  04/17/2024 04 PM PDT            12.8            565         +      Not Applicable
  04/17/2024 05 PM PDT            12.8            558         -      Not Applicable
  04/17/2024 06 PM PDT            12.8            550         -      Not Applicable
  04/17/2024 07 PM PDT            12.8            550         0      Not Applicable
  04/17/2024 08 PM PDT            12.8            558         +      Not Applicable
  04/17/2024 09 PM PDT            12.8            550         -      Not Applicable
  04/17/2024 10 PM PDT            12.8            550         0      Not Applicable
  04/17/2024 11 PM PDT            12.8            550         0      Not Applicable
  04/18/2024 12 AM PDT            12.8            543         -      Not Applicable
  04/18/2024 01 AM PDT            12.8            543         0      Not Applicable
  04/18/2024 02 AM PDT            12.8            543         0      Not Applicable
  04/18/2024 03 AM PDT            12.8            543         0      Not Applicable
  04/18/2024 04 AM PDT            12.8            543         0      Not Applicable
  04/18/2024 05 AM PDT            12.8            543         0      Not Applicable
  04/18/2024 06 AM PDT            12.8            536         -      Not Applicable
  04/18/2024 07 AM PDT            12.8            536         0      Not Applicable
  04/18/2024 08 AM PDT            12.8            536         0      Not Applicable
  04/18/2024 09 AM PDT            12.8            536         0      Not Applicable
  04/18/2024 10 AM PDT            12.8            536         0      Not Applicable
  04/18/2024 11 AM PDT            12.8            536         0      Not Applicable
  04/18/2024 12 PM PDT            12.8            536         0      Not Applicable
  04/18/2024 01 PM PDT            12.8            536         0      Not Applicable
  04/18/2024 02 PM PDT            12.8            536         0      Not Applicable
  04/18/2024 03 PM PDT            12.8            536         0      Not Applicable
  04/18/2024 04 PM PDT            12.8            536         0      Not Applicable
  04/18/2024 05 PM PDT            12.8            536         0      Not Applicable
  04/18/2024 06 PM PDT            12.8            529         -      Not Applicable
  04/18/2024 07 PM PDT            12.8            529         0      Not Applicable
  04/18/2024 08 PM PDT            12.8            529         0      Not Applicable
  04/18/2024 09 PM PDT            12.8            529         0      Not Applicable
  04/18/2024 10 PM PDT            12.8            529         0      Not Applicable
  04/18/2024 11 PM PDT            12.8            522         -      Not Applicable
  04/19/2024 12 AM PDT            12.8            522         0      Not Applicable
  04/19/2024 01 AM PDT            12.8            522         0      Not Applicable
  04/19/2024 02 AM PDT            12.8            522         0      Not Applicable
  04/19/2024 03 AM PDT            12.7            515         -      Not Applicable
  04/19/2024 04 AM PDT            12.7            515         0      Not Applicable
  04/19/2024 05 AM PDT            12.8            522         +      Not Applicable
  04/19/2024 06 AM PDT            12.8            522         0      Not Applicable
  04/19/2024 07 AM PDT            12.8            522         0      Not Applicable
#
# FORECAST
#
# Date & Time  (Local)    Stage (Feet)     Flow (cfs)     Trend     Forecast Status
# ---------------------------------------------------------------------------------
  04/19/2024 08 AM PDT            12.8            522                Not Applicable
  04/19/2024 09 AM PDT            12.7            515         -      Not Applicable
  04/19/2024 10 AM PDT            12.7            515         0      Not Applicable
  04/19/2024 11 AM PDT            12.7            515         0      Not Applicable
  04/19/2024 12 PM PDT            12.7            515         0      Not Applicable
  04/19/2024 01 PM PDT            12.7            515         0      Not Applicable
  04/19/2024 02 PM PDT            12.7            515         0      Not Applicable
  04/19/2024 03 PM PDT            12.7            515         0      Not Applicable
  04/19/2024 04 PM PDT            12.7            515         0      Not Applicable
  04/19/2024 05 PM PDT            12.7            515         0      Not Applicable
  04/19/2024 06 PM PDT            12.7            508         -      Not Applicable
  04/19/2024 07 PM PDT            12.7            508         0      Not Applicable
  04/19/2024 08 PM PDT            12.7            508         0      Not Applicable
  04/19/2024 09 PM PDT            12.7            508         0      Not Applicable
  04/19/2024 10 PM PDT            12.7            508         0      Not Applicable
  04/19/2024 11 PM PDT            12.7            508         0      Not Applicable
  04/20/2024 12 AM PDT            12.7            508         0      Not Applicable
  04/20/2024 01 AM PDT            12.7            508         0      Not Applicable
  04/20/2024 02 AM PDT            12.7            508         0      Not Applicable
  04/20/2024 03 AM PDT            12.7            501         -      Not Applicable
  04/20/2024 04 AM PDT            12.7            501         0      Not Applicable
  04/20/2024 05 AM PDT            12.7            501         0      Not Applicable
  04/20/2024 06 AM PDT            12.7            501         0      Not Applicable
  04/20/2024 07 AM PDT            12.7            501         0      Not Applicable
  04/20/2024 08 AM PDT            12.7            501         0      Not Applicable
  04/20/2024 09 AM PDT            12.7            501         0      Not Applicable
  04/20/2024 10 AM PDT            12.7            501         0      Not Applicable
  04/20/2024 11 AM PDT            12.7            501         0      Not Applicable
  04/20/2024 12 PM PDT            12.7            495         -      Not Applicable
  04/20/2024 01 PM PDT            12.7            495         0      Not Applicable
  04/20/2024 02 PM PDT            12.7            495         0      Not Applicable
  04/20/2024 03 PM PDT            12.7            495         0      Not Applicable
  04/20/2024 04 PM PDT            12.7            495         0      Not Applicable
  04/20/2024 05 PM PDT            12.7            495         0      Not Applicable
  04/20/2024 06 PM PDT            12.7            495         0      Not Applicable
  04/20/2024 07 PM PDT            12.7            495         0      Not Applicable
  04/20/2024 08 PM PDT            12.7            495         0      Not Applicable
  04/20/2024 09 PM PDT            12.7            495         0      Not Applicable
  04/20/2024 10 PM PDT            12.7            488         -      Not Applicable
  04/20/2024 11 PM PDT            12.7            488         0      Not Applicable
  04/21/2024 12 AM PDT            12.7            488         0      Not Applicable
  04/21/2024 01 AM PDT            12.7            488         0      Not Applicable
  04/21/2024 02 AM PDT            12.7            488         0      Not Applicable
  04/21/2024 03 AM PDT            12.7            488         0      Not Applicable
  04/21/2024 04 AM PDT            12.7            488         0      Not Applicable
  04/21/2024 05 AM PDT            12.7            488         0      Not Applicable
  04/21/2024 06 AM PDT            12.7            488         0      Not Applicable
  04/21/2024 07 AM PDT            12.7            488         0      Not Applicable
  04/21/2024 08 AM PDT            12.7            481         -      Not Applicable
  04/21/2024 09 AM PDT            12.7            481         0      Not Applicable
  04/21/2024 10 AM PDT            12.7            481         0      Not Applicable
  04/21/2024 11 AM PDT            12.7            481         0      Not Applicable
  04/21/2024 12 PM PDT            12.7            481         0      Not Applicable
  04/21/2024 01 PM PDT            12.7            481         0      Not Applicable
  04/21/2024 02 PM PDT            12.7            481         0      Not Applicable
  04/21/2024 03 PM PDT            12.7            481         0      Not Applicable
  04/21/2024 04 PM PDT            12.7            481         0      Not Applicable
  04/21/2024 05 PM PDT            12.7            481         0      Not Applicable
  04/21/2024 06 PM PDT            12.7            475         -      Not Applicable
  04/21/2024 07 PM PDT            12.7            475         0      Not Applicable
  04/21/2024 08 PM PDT            12.7            475         0      Not Applicable
  04/21/2024 09 PM PDT            12.7            475         0      Not Applicable
  04/21/2024 10 PM PDT            12.7            475         0      Not Applicable
  04/21/2024 11 PM PDT            12.7            475         0      Not Applicable
  04/22/2024 12 AM PDT            12.7            475         0      Not Applicable
  04/22/2024 01 AM PDT            12.7            475         0      Not Applicable
  04/22/2024 02 AM PDT            12.7            475         0      Not Applicable
  04/22/2024 03 AM PDT            12.7            475         0      Not Applicable
  04/22/2024 04 AM PDT            12.7            475         0      Not Applicable
  04/22/2024 05 AM PDT            12.7            468         -      Not Applicable
  04/22/2024 06 AM PDT            12.7            468         0      Not Applicable
  04/22/2024 07 AM PDT            12.7            468         0      Not Applicable
  04/22/2024 08 AM PDT            12.7            468         0      Not Applicable
  04/22/2024 09 AM PDT            12.7            468         0      Not Applicable
  04/22/2024 10 AM PDT            12.7            468         0      Not Applicable
  04/22/2024 11 AM PDT            12.7            468         0      Not Applicable
  04/22/2024 12 PM PDT            12.7            468         0      Not Applicable
  04/22/2024 01 PM PDT            12.7            468         0      Not Applicable
  04/22/2024 02 PM PDT            12.7            468         0      Not Applicable
  04/22/2024 03 PM PDT            12.7            462         -      Not Applicable
  04/22/2024 04 PM PDT            12.7            462         0      Not Applicable
  04/22/2024 05 PM PDT            12.7            462         0      Not Applicable
  04/22/2024 06 PM PDT            12.7            462         0      Not Applicable
  04/22/2024 07 PM PDT            12.7            462         0      Not Applicable
  04/22/2024 08 PM PDT            12.7            462         0      Not Applicable
  04/22/2024 09 PM PDT            12.7            462         0      Not Applicable
  04/22/2024 10 PM PDT            12.7            462         0      Not Applicable
  04/22/2024 11 PM PDT            12.7            462         0      Not Applicable
  04/23/2024 12 AM PDT            12.7            462         0      Not Applicable
  04/23/2024 01 AM PDT            12.7            462         0      Not Applicable
  04/23/2024 02 AM PDT            12.7            456         -      Not Applicable
  04/23/2024 03 AM PDT            12.7            456         0      Not Applicable
  04/23/2024 04 AM PDT            12.7            456         0      Not Applicable
  04/23/2024 05 AM PDT            12.7            456         0      Not Applicable
  04/23/2024 06 AM PDT            12.7            456         0      Not Applicable
  04/23/2024 07 AM PDT            12.7            456         0      Not Applicable
  04/23/2024 08 AM PDT            12.7            456         0      Not Applicable
  04/23/2024 09 AM PDT            12.7            456         0      Not Applicable
  04/23/2024 10 AM PDT            12.7            456         0      Not Applicable
  04/23/2024 11 AM PDT            12.7            456         0      Not Applicable
  04/23/2024 12 PM PDT            12.7            456         0      Not Applicable
  04/23/2024 01 PM PDT            12.6            450         -      Not Applicable
  04/23/2024 02 PM PDT            12.6            450         0      Not Applicable
  04/23/2024 03 PM PDT            12.6            450         0      Not Applicable
  04/23/2024 04 PM PDT            12.6            450         0      Not Applicable
  04/23/2024 05 PM PDT            12.6            450         0      Not Applicable
  04/23/2024 06 PM PDT            12.6            450         0      Not Applicable
  04/23/2024 07 PM PDT            12.6            450         0      Not Applicable
  04/23/2024 08 PM PDT            12.6            450         0      Not Applicable
  04/23/2024 09 PM PDT            12.6            450         0      Not Applicable
  04/23/2024 10 PM PDT            12.6            450         0      Not Applicable
  04/23/2024 11 PM PDT            12.6            450         0      Not Applicable
  04/24/2024 12 AM PDT            12.6            443         -      Not Applicable
  04/24/2024 01 AM PDT            12.6            443         0      Not Applicable
  04/24/2024 02 AM PDT            12.6            443         0      Not Applicable
  04/24/2024 03 AM PDT            12.6            443         0      Not Applicable
  04/24/2024 04 AM PDT            12.6            443         0      Not Applicable
  04/24/2024 05 AM PDT            12.6            443         0      Not Applicable
#
# NOTE 1: Stages are rounded to the nearest tenth (.1) 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.