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: May 27 2024 at 8:31 AM PDTNext Issuance: May 28 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:  05/27/2024 at 08:32 AM PDT
# Data Interval:  1 Hour
#
# Most Recent Date & Time of Maximum Observed:  05/22/2024 at 02:00 PM PDT
# Maximum Observed Stage:                       12.31 Feet
# Maximum Observed Flow:                        215 cfs
#
# Earliest Date & Time of Maximum Forecast:     05/27/2024 at 09:00 AM PDT
# Maximum Forecast Stage:                       12.18 Feet
# Maximum Forecast Flow:                        174 cfs
#
# OBSERVED
#
# Date & Time  (Local)    Stage (Feet)     Flow (cfs)     Trend     Observed Status
# ---------------------------------------------------------------------------------
  05/22/2024 08 AM PDT           12.30            211                Not Applicable
  05/22/2024 09 AM PDT           12.30            211         0      Not Applicable
  05/22/2024 10 AM PDT           12.31            215         +      Not Applicable
  05/22/2024 11 AM PDT           12.30            211         -      Not Applicable
  05/22/2024 12 PM PDT           12.30            211         0      Not Applicable
  05/22/2024 01 PM PDT           12.30            211         0      Not Applicable
  05/22/2024 02 PM PDT           12.31            215         +      Not Applicable
  05/22/2024 03 PM PDT           12.30            211         -      Not Applicable
  05/22/2024 04 PM PDT           12.30            211         0      Not Applicable
  05/22/2024 05 PM PDT           12.23            189         -      Not Applicable
  05/22/2024 06 PM PDT           12.23            189         0      Not Applicable
  05/22/2024 07 PM PDT           12.22            186         -      Not Applicable
  05/22/2024 08 PM PDT           12.22            186         0      Not Applicable
  05/22/2024 09 PM PDT           12.23            189         +      Not Applicable
  05/22/2024 10 PM PDT           12.22            186         -      Not Applicable
  05/22/2024 11 PM PDT           12.22            186         0      Not Applicable
  05/23/2024 12 AM PDT           12.22            186         0      Not Applicable
  05/23/2024 01 AM PDT           12.22            186         0      Not Applicable
  05/23/2024 02 AM PDT           12.22            186         0      Not Applicable
  05/23/2024 03 AM PDT           12.22            186         0      Not Applicable
  05/23/2024 04 AM PDT           12.22            186         0      Not Applicable
  05/23/2024 05 AM PDT           12.22            186         0      Not Applicable
  05/23/2024 06 AM PDT           12.22            186         0      Not Applicable
  05/23/2024 07 AM PDT           12.22            186         0      Not Applicable
  05/23/2024 08 AM PDT           12.22            186         0      Not Applicable
  05/23/2024 09 AM PDT           12.22            186         0      Not Applicable
  05/23/2024 10 AM PDT           12.22            186         0      Not Applicable
  05/23/2024 11 AM PDT           12.22            186         0      Not Applicable
  05/23/2024 12 PM PDT           12.22            186         0      Not Applicable
  05/23/2024 01 PM PDT           12.22            186         0      Not Applicable
  05/23/2024 02 PM PDT           12.22            186         0      Not Applicable
  05/23/2024 03 PM PDT           12.23            189         +      Not Applicable
  05/23/2024 04 PM PDT           12.22            186         -      Not Applicable
  05/23/2024 05 PM PDT           12.22            186         0      Not Applicable
  05/23/2024 06 PM PDT           12.21            183         -      Not Applicable
  05/23/2024 07 PM PDT           12.22            186         +      Not Applicable
  05/23/2024 08 PM PDT           12.21            183         -      Not Applicable
  05/23/2024 09 PM PDT           12.21            183         0      Not Applicable
  05/23/2024 10 PM PDT           12.21            183         0      Not Applicable
  05/23/2024 11 PM PDT           12.21            183         0      Not Applicable
  05/24/2024 12 AM PDT           12.21            183         0      Not Applicable
  05/24/2024 01 AM PDT           12.21            183         0      Not Applicable
  05/24/2024 02 AM PDT           12.21            183         0      Not Applicable
  05/24/2024 03 AM PDT           12.21            183         0      Not Applicable
  05/24/2024 04 AM PDT           12.21            183         0      Not Applicable
  05/24/2024 05 AM PDT           12.21            183         0      Not Applicable
  05/24/2024 06 AM PDT           12.21            183         0      Not Applicable
  05/24/2024 07 AM PDT           12.21            183         0      Not Applicable
  05/24/2024 08 AM PDT           12.21            183         0      Not Applicable
  05/24/2024 09 AM PDT           12.21            183         0      Not Applicable
  05/24/2024 10 AM PDT           12.21            183         0      Not Applicable
  05/24/2024 11 AM PDT           12.21            183         0      Not Applicable
  05/24/2024 12 PM PDT           12.21            183         0      Not Applicable
  05/24/2024 01 PM PDT           12.21            183         0      Not Applicable
  05/24/2024 02 PM PDT           12.21            183         0      Not Applicable
  05/24/2024 03 PM PDT           12.21            183         0      Not Applicable
  05/24/2024 04 PM PDT           12.21            183         0      Not Applicable
  05/24/2024 05 PM PDT           12.21            183         0      Not Applicable
  05/24/2024 06 PM PDT           12.21            183         0      Not Applicable
  05/24/2024 07 PM PDT           12.20            180         -      Not Applicable
  05/24/2024 08 PM PDT           12.20            180         0      Not Applicable
  05/24/2024 09 PM PDT           12.20            180         0      Not Applicable
  05/24/2024 10 PM PDT           12.20            180         0      Not Applicable
  05/24/2024 11 PM PDT           12.20            180         0      Not Applicable
  05/25/2024 12 AM PDT           12.20            180         0      Not Applicable
  05/25/2024 01 AM PDT           12.20            180         0      Not Applicable
  05/25/2024 02 AM PDT           12.20            180         0      Not Applicable
  05/25/2024 03 AM PDT           12.20            180         0      Not Applicable
  05/25/2024 04 AM PDT           12.20            180         0      Not Applicable
  05/25/2024 05 AM PDT           12.20            180         0      Not Applicable
  05/25/2024 06 AM PDT           12.20            180         0      Not Applicable
  05/25/2024 07 AM PDT           12.20            180         0      Not Applicable
  05/25/2024 08 AM PDT           12.20            180         0      Not Applicable
  05/25/2024 09 AM PDT           12.20            180         0      Not Applicable
  05/25/2024 10 AM PDT           12.19            177         -      Not Applicable
  05/25/2024 11 AM PDT           12.20            180         +      Not Applicable
  05/25/2024 12 PM PDT           12.20            180         0      Not Applicable
  05/25/2024 01 PM PDT           12.20            180         0      Not Applicable
  05/25/2024 02 PM PDT           12.20            180         0      Not Applicable
  05/25/2024 03 PM PDT           12.20            180         0      Not Applicable
  05/25/2024 04 PM PDT           12.20            180         0      Not Applicable
  05/25/2024 05 PM PDT           12.20            180         0      Not Applicable
  05/25/2024 06 PM PDT           12.20            180         0      Not Applicable
  05/25/2024 07 PM PDT           12.19            177         -      Not Applicable
  05/25/2024 08 PM PDT           12.19            177         0      Not Applicable
  05/25/2024 09 PM PDT           12.19            177         0      Not Applicable
  05/25/2024 10 PM PDT           12.19            177         0      Not Applicable
  05/25/2024 11 PM PDT           12.19            177         0      Not Applicable
  05/26/2024 12 AM PDT           12.19            177         0      Not Applicable
  05/26/2024 01 AM PDT           12.19            177         0      Not Applicable
  05/26/2024 02 AM PDT           12.19            177         0      Not Applicable
  05/26/2024 03 AM PDT           12.19            177         0      Not Applicable
  05/26/2024 04 AM PDT           12.19            177         0      Not Applicable
  05/26/2024 05 AM PDT           12.19            177         0      Not Applicable
  05/26/2024 06 AM PDT           12.19            177         0      Not Applicable
  05/26/2024 07 AM PDT           12.19            177         0      Not Applicable
  05/26/2024 08 AM PDT           12.19            177         0      Not Applicable
  05/26/2024 09 AM PDT           12.19            177         0      Not Applicable
  05/26/2024 10 AM PDT           12.19            177         0      Not Applicable
  05/26/2024 11 AM PDT           12.18            174         -      Not Applicable
  05/26/2024 12 PM PDT           12.19            177         +      Not Applicable
  05/26/2024 01 PM PDT           12.19            177         0      Not Applicable
  05/26/2024 02 PM PDT           12.19            177         0      Not Applicable
  05/26/2024 03 PM PDT           12.19            177         0      Not Applicable
  05/26/2024 04 PM PDT           12.19            177         0      Not Applicable
  05/26/2024 05 PM PDT           12.19            177         0      Not Applicable
  05/26/2024 06 PM PDT           12.19            177         0      Not Applicable
  05/26/2024 07 PM PDT           12.19            177         0      Not Applicable
  05/26/2024 08 PM PDT           12.18            174         -      Not Applicable
  05/26/2024 09 PM PDT           12.18            174         0      Not Applicable
  05/26/2024 10 PM PDT           12.18            174         0      Not Applicable
  05/26/2024 11 PM PDT           12.18            174         0      Not Applicable
  05/27/2024 12 AM PDT           12.18            174         0      Not Applicable
  05/27/2024 01 AM PDT           12.18            174         0      Not Applicable
  05/27/2024 02 AM PDT           12.18            174         0      Not Applicable
  05/27/2024 03 AM PDT           12.18            174         0      Not Applicable
  05/27/2024 04 AM PDT           12.18            174         0      Not Applicable
  05/27/2024 05 AM PDT           12.18            174         0      Not Applicable
  05/27/2024 06 AM PDT           12.18            174         0      Not Applicable
  05/27/2024 07 AM PDT           12.18            174         0      Not Applicable
  05/27/2024 08 AM PDT           12.18            174         0      Not Applicable
#
# FORECAST
#
# Date & Time  (Local)    Stage (Feet)     Flow (cfs)     Trend     Forecast Status
# ---------------------------------------------------------------------------------
  05/27/2024 09 AM PDT           12.18            174                Not Applicable
  05/27/2024 10 AM PDT           12.18            174         0      Not Applicable
  05/27/2024 11 AM PDT           12.18            174         0      Not Applicable
  05/27/2024 12 PM PDT           12.18            174         0      Not Applicable
  05/27/2024 01 PM PDT           12.18            174         0      Not Applicable
  05/27/2024 02 PM PDT           12.18            174         0      Not Applicable
  05/27/2024 03 PM PDT           12.17            172         -      Not Applicable
  05/27/2024 04 PM PDT           12.17            172         0      Not Applicable
  05/27/2024 05 PM PDT           12.17            172         0      Not Applicable
  05/27/2024 06 PM PDT           12.17            172         0      Not Applicable
  05/27/2024 07 PM PDT           12.17            172         0      Not Applicable
  05/27/2024 08 PM PDT           12.17            172         0      Not Applicable
  05/27/2024 09 PM PDT           12.17            172         0      Not Applicable
  05/27/2024 10 PM PDT           12.17            172         0      Not Applicable
  05/27/2024 11 PM PDT           12.17            172         0      Not Applicable
  05/28/2024 12 AM PDT           12.17            172         0      Not Applicable
  05/28/2024 01 AM PDT           12.17            172         0      Not Applicable
  05/28/2024 02 AM PDT           12.17            172         0      Not Applicable
  05/28/2024 03 AM PDT           12.17            172         0      Not Applicable
  05/28/2024 04 AM PDT           12.17            172         0      Not Applicable
  05/28/2024 05 AM PDT           12.17            172         0      Not Applicable
  05/28/2024 06 AM PDT           12.17            172         0      Not Applicable
  05/28/2024 07 AM PDT           12.16            169         -      Not Applicable
  05/28/2024 08 AM PDT           12.16            169         0      Not Applicable
  05/28/2024 09 AM PDT           12.16            169         0      Not Applicable
  05/28/2024 10 AM PDT           12.16            169         0      Not Applicable
  05/28/2024 11 AM PDT           12.16            169         0      Not Applicable
  05/28/2024 12 PM PDT           12.16            169         0      Not Applicable
  05/28/2024 01 PM PDT           12.16            169         0      Not Applicable
  05/28/2024 02 PM PDT           12.16            169         0      Not Applicable
  05/28/2024 03 PM PDT           12.16            169         0      Not Applicable
  05/28/2024 04 PM PDT           12.16            169         0      Not Applicable
  05/28/2024 05 PM PDT           12.16            169         0      Not Applicable
  05/28/2024 06 PM PDT           12.16            169         0      Not Applicable
  05/28/2024 07 PM PDT           12.16            169         0      Not Applicable
  05/28/2024 08 PM PDT           12.16            169         0      Not Applicable
  05/28/2024 09 PM PDT           12.16            169         0      Not Applicable
  05/28/2024 10 PM PDT           12.16            169         0      Not Applicable
  05/28/2024 11 PM PDT           12.16            169         0      Not Applicable
  05/29/2024 12 AM PDT           12.16            169         0      Not Applicable
  05/29/2024 01 AM PDT           12.16            169         0      Not Applicable
  05/29/2024 02 AM PDT           12.15            166         -      Not Applicable
  05/29/2024 03 AM PDT           12.15            166         0      Not Applicable
  05/29/2024 04 AM PDT           12.15            166         0      Not Applicable
  05/29/2024 05 AM PDT           12.15            166         0      Not Applicable
  05/29/2024 06 AM PDT           12.15            166         0      Not Applicable
  05/29/2024 07 AM PDT           12.15            166         0      Not Applicable
  05/29/2024 08 AM PDT           12.15            166         0      Not Applicable
  05/29/2024 09 AM PDT           12.15            166         0      Not Applicable
  05/29/2024 10 AM PDT           12.15            166         0      Not Applicable
  05/29/2024 11 AM PDT           12.15            166         0      Not Applicable
  05/29/2024 12 PM PDT           12.15            166         0      Not Applicable
  05/29/2024 01 PM PDT           12.15            166         0      Not Applicable
  05/29/2024 02 PM PDT           12.15            166         0      Not Applicable
  05/29/2024 03 PM PDT           12.15            166         0      Not Applicable
  05/29/2024 04 PM PDT           12.15            166         0      Not Applicable
  05/29/2024 05 PM PDT           12.15            166         0      Not Applicable
  05/29/2024 06 PM PDT           12.15            166         0      Not Applicable
  05/29/2024 07 PM PDT           12.15            166         0      Not Applicable
  05/29/2024 08 PM PDT           12.15            166         0      Not Applicable
  05/29/2024 09 PM PDT           12.15            166         0      Not Applicable
  05/29/2024 10 PM PDT           12.14            164         -      Not Applicable
  05/29/2024 11 PM PDT           12.14            164         0      Not Applicable
  05/30/2024 12 AM PDT           12.14            164         0      Not Applicable
  05/30/2024 01 AM PDT           12.14            164         0      Not Applicable
  05/30/2024 02 AM PDT           12.14            164         0      Not Applicable
  05/30/2024 03 AM PDT           12.14            164         0      Not Applicable
  05/30/2024 04 AM PDT           12.14            164         0      Not Applicable
  05/30/2024 05 AM PDT           12.14            164         0      Not Applicable
  05/30/2024 06 AM PDT           12.14            164         0      Not Applicable
  05/30/2024 07 AM PDT           12.14            164         0      Not Applicable
  05/30/2024 08 AM PDT           12.14            164         0      Not Applicable
  05/30/2024 09 AM PDT           12.14            164         0      Not Applicable
  05/30/2024 10 AM PDT           12.14            164         0      Not Applicable
  05/30/2024 11 AM PDT           12.14            164         0      Not Applicable
  05/30/2024 12 PM PDT           12.14            164         0      Not Applicable
  05/30/2024 01 PM PDT           12.14            164         0      Not Applicable
  05/30/2024 02 PM PDT           12.14            164         0      Not Applicable
  05/30/2024 03 PM PDT           12.14            164         0      Not Applicable
  05/30/2024 04 PM PDT           12.14            164         0      Not Applicable
  05/30/2024 05 PM PDT           12.13            161         -      Not Applicable
  05/30/2024 06 PM PDT           12.13            161         0      Not Applicable
  05/30/2024 07 PM PDT           12.13            161         0      Not Applicable
  05/30/2024 08 PM PDT           12.13            161         0      Not Applicable
  05/30/2024 09 PM PDT           12.13            161         0      Not Applicable
  05/30/2024 10 PM PDT           12.13            161         0      Not Applicable
  05/30/2024 11 PM PDT           12.13            161         0      Not Applicable
  05/31/2024 12 AM PDT           12.13            161         0      Not Applicable
  05/31/2024 01 AM PDT           12.13            161         0      Not Applicable
  05/31/2024 02 AM PDT           12.13            161         0      Not Applicable
  05/31/2024 03 AM PDT           12.13            161         0      Not Applicable
  05/31/2024 04 AM PDT           12.13            161         0      Not Applicable
  05/31/2024 05 AM PDT           12.13            161         0      Not Applicable
  05/31/2024 06 AM PDT           12.13            161         0      Not Applicable
  05/31/2024 07 AM PDT           12.13            161         0      Not Applicable
  05/31/2024 08 AM PDT           12.13            161         0      Not Applicable
  05/31/2024 09 AM PDT           12.13            161         0      Not Applicable
  05/31/2024 10 AM PDT           12.13            161         0      Not Applicable
  05/31/2024 11 AM PDT           12.13            161         0      Not Applicable
  05/31/2024 12 PM PDT           12.13            161         0      Not Applicable
  05/31/2024 01 PM PDT           12.12            158         -      Not Applicable
  05/31/2024 02 PM PDT           12.12            158         0      Not Applicable
  05/31/2024 03 PM PDT           12.12            158         0      Not Applicable
  05/31/2024 04 PM PDT           12.12            158         0      Not Applicable
  05/31/2024 05 PM PDT           12.12            158         0      Not Applicable
  05/31/2024 06 PM PDT           12.12            158         0      Not Applicable
  05/31/2024 07 PM PDT           12.12            158         0      Not Applicable
  05/31/2024 08 PM PDT           12.12            158         0      Not Applicable
  05/31/2024 09 PM PDT           12.12            158         0      Not Applicable
  05/31/2024 10 PM PDT           12.12            158         0      Not Applicable
  05/31/2024 11 PM PDT           12.12            158         0      Not Applicable
  06/01/2024 12 AM PDT           12.12            158         0      Not Applicable
  06/01/2024 01 AM PDT           12.12            158         0      Not Applicable
  06/01/2024 02 AM PDT           12.12            158         0      Not Applicable
  06/01/2024 03 AM PDT           12.12            158         0      Not Applicable
  06/01/2024 04 AM PDT           12.12            158         0      Not Applicable
  06/01/2024 05 AM PDT           12.12            158         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.