MATTOLE RIVER - PETROLIA (MTOC1)
Latitude: 40.31º NLongitude: 124.28º WElevation: 40 FeetForecast Type: Unofficial Location
Location: Humboldt County in CaliforniaBulletin Group: North CoastRiver Group: North Coast
Issuance Time: Nov 10 2026 at 7:09 AM PSTNext Issuance: Nov 10 2026 at 3:00 PM PST
Action: N/A Minor Flood: N/A Moderate Flood: N/A Major Flood: N/A

# Tabular Observed and Forecast Hydrograph Information
#
# Location: Mattole River - Petrolia (MTOC1)
#
# File Generation Time:  11/10/2026 at 07:10 AM PST
# Data Interval:  1 Hour
#
# Most Recent Date & Time of Maximum Observed:  11/10/2026 at 07:00 AM PST
# Maximum Observed Stage:                       11.24 Feet
# Maximum Observed Flow:                        35 cfs
#
# Earliest Date & Time of Maximum Forecast:     11/14/2026 at 09:00 AM PST
# Maximum Forecast Stage:                       11.80 Feet
# Maximum Forecast Flow:                        138 cfs
#
# OBSERVED
#
# Date & Time  (Local)    Stage (Feet)     Flow (cfs)     Trend     Observed Status
# ---------------------------------------------------------------------------------
  11/05/2026 07 AM PST           11.19             31                Not Applicable
  11/05/2026 08 AM PST           11.19             31         0      Not Applicable
  11/05/2026 09 AM PST           11.19             31         0      Not Applicable
  11/05/2026 10 AM PST           11.18             30         -      Not Applicable
  11/05/2026 11 AM PST           11.18             30         0      Not Applicable
  11/05/2026 12 PM PST           11.18             30         0      Not Applicable
  11/05/2026 01 PM PST           11.19             31         +      Not Applicable
  11/05/2026 02 PM PST           11.19             31         0      Not Applicable
  11/05/2026 03 PM PST           11.18             30         -      Not Applicable
  11/05/2026 04 PM PST           11.19             31         +      Not Applicable
  11/05/2026 05 PM PST           11.18             30         -      Not Applicable
  11/05/2026 06 PM PST           11.19             31         +      Not Applicable
  11/05/2026 07 PM PST           11.18             30         -      Not Applicable
  11/05/2026 08 PM PST           11.19             31         +      Not Applicable
  11/05/2026 09 PM PST           11.18             30         -      Not Applicable
  11/05/2026 10 PM PST           11.18             30         0      Not Applicable
  11/05/2026 11 PM PST           11.18             30         0      Not Applicable
  11/06/2026 12 AM PST           11.18             30         0      Not Applicable
  11/06/2026 01 AM PST           11.18             30         0      Not Applicable
  11/06/2026 02 AM PST           11.17             29         -      Not Applicable
  11/06/2026 03 AM PST           11.17             29         0      Not Applicable
  11/06/2026 04 AM PST           11.17             29         0      Not Applicable
  11/06/2026 05 AM PST           11.17             29         0      Not Applicable
  11/06/2026 06 AM PST           11.18             30         +      Not Applicable
  11/06/2026 07 AM PST           11.17             29         -      Not Applicable
  11/06/2026 08 AM PST           11.17             29         0      Not Applicable
  11/06/2026 09 AM PST           11.17             29         0      Not Applicable
  11/06/2026 10 AM PST           11.17             29         0      Not Applicable
  11/06/2026 11 AM PST           11.17             29         0      Not Applicable
  11/06/2026 12 PM PST           11.17             29         0      Not Applicable
  11/06/2026 01 PM PST           11.18             30         +      Not Applicable
  11/06/2026 02 PM PST           11.18             30         0      Not Applicable
  11/06/2026 03 PM PST           11.17             29         -      Not Applicable
  11/06/2026 04 PM PST           11.17             29         0      Not Applicable
  11/06/2026 05 PM PST           11.18             30         +      Not Applicable
  11/06/2026 06 PM PST           11.18             30         0      Not Applicable
  11/06/2026 07 PM PST           11.18             30         0      Not Applicable
  11/06/2026 08 PM PST           11.18             30         0      Not Applicable
  11/06/2026 09 PM PST           11.18             30         0      Not Applicable
  11/06/2026 10 PM PST           11.18             30         0      Not Applicable
  11/06/2026 11 PM PST           11.18             30         0      Not Applicable
  11/07/2026 12 AM PST           11.18             30         0      Not Applicable
  11/07/2026 01 AM PST           11.18             30         0      Not Applicable
  11/07/2026 02 AM PST           11.18             30         0      Not Applicable
  11/07/2026 03 AM PST           11.18             30         0      Not Applicable
  11/07/2026 04 AM PST           11.18             30         0      Not Applicable
  11/07/2026 05 AM PST           11.18             30         0      Not Applicable
  11/07/2026 06 AM PST           11.17             29         -      Not Applicable
  11/07/2026 07 AM PST           11.18             30         +      Not Applicable
  11/07/2026 08 AM PST           11.18             30         0      Not Applicable
  11/07/2026 09 AM PST           11.18             30         0      Not Applicable
  11/07/2026 10 AM PST           11.18             30         0      Not Applicable
  11/07/2026 11 AM PST           11.18             30         0      Not Applicable
  11/07/2026 12 PM PST           11.18             30         0      Not Applicable
  11/07/2026 01 PM PST           11.18             30         0      Not Applicable
  11/07/2026 02 PM PST           11.18             30         0      Not Applicable
  11/07/2026 03 PM PST           11.18             30         0      Not Applicable
  11/07/2026 04 PM PST           11.18             30         0      Not Applicable
  11/07/2026 05 PM PST           11.18             30         0      Not Applicable
  11/07/2026 06 PM PST           11.18             30         0      Not Applicable
  11/07/2026 07 PM PST           11.18             30         0      Not Applicable
  11/07/2026 08 PM PST           11.18             30         0      Not Applicable
  11/07/2026 09 PM PST           11.17             29         -      Not Applicable
  11/07/2026 10 PM PST           11.17             29         0      Not Applicable
  11/07/2026 11 PM PST           11.17             29         0      Not Applicable
  11/08/2026 12 AM PST           11.17             29         0      Not Applicable
  11/08/2026 01 AM PST           11.17             29         0      Not Applicable
  11/08/2026 02 AM PST           11.17             29         0      Not Applicable
  11/08/2026 03 AM PST           11.17             29         0      Not Applicable
  11/08/2026 04 AM PST           11.17             29         0      Not Applicable
  11/08/2026 05 AM PST           11.17             29         0      Not Applicable
  11/08/2026 06 AM PST           11.17             29         0      Not Applicable
  11/08/2026 07 AM PST           11.17             29         0      Not Applicable
  11/08/2026 08 AM PST           11.18             30         +      Not Applicable
  11/08/2026 09 AM PST           11.18             30         0      Not Applicable
  11/08/2026 10 AM PST           11.18             30         0      Not Applicable
  11/08/2026 11 AM PST           11.17             29         -      Not Applicable
  11/08/2026 12 PM PST           11.17             29         0      Not Applicable
  11/08/2026 01 PM PST           11.17             29         0      Not Applicable
  11/08/2026 02 PM PST           11.18             30         +      Not Applicable
  11/08/2026 03 PM PST           11.18             30         0      Not Applicable
  11/08/2026 04 PM PST           11.18             30         0      Not Applicable
  11/08/2026 05 PM PST           11.18             30         0      Not Applicable
  11/08/2026 06 PM PST           11.18             30         0      Not Applicable
  11/08/2026 07 PM PST           11.18             30         0      Not Applicable
  11/08/2026 08 PM PST           11.17             29         -      Not Applicable
  11/08/2026 09 PM PST           11.17             29         0      Not Applicable
  11/08/2026 10 PM PST           11.17             29         0      Not Applicable
  11/08/2026 11 PM PST           11.17             29         0      Not Applicable
  11/09/2026 12 AM PST           11.17             29         0      Not Applicable
  11/09/2026 01 AM PST           11.18             30         +      Not Applicable
  11/09/2026 02 AM PST           11.18             30         0      Not Applicable
  11/09/2026 03 AM PST           11.17             29         -      Not Applicable
  11/09/2026 04 AM PST           11.17             29         0      Not Applicable
  11/09/2026 05 AM PST           11.17             29         0      Not Applicable
  11/09/2026 06 AM PST           11.17             29         0      Not Applicable
  11/09/2026 07 AM PST           11.17             29         0      Not Applicable
  11/09/2026 08 AM PST           11.17             29         0      Not Applicable
  11/09/2026 09 AM PST           11.17             29         0      Not Applicable
  11/09/2026 10 AM PST           11.17             29         0      Not Applicable
  11/09/2026 11 AM PST           11.18             30         +      Not Applicable
  11/09/2026 12 PM PST           11.19             31         +      Not Applicable
  11/09/2026 01 PM PST           11.19             31         0      Not Applicable
  11/09/2026 02 PM PST           11.20             32         +      Not Applicable
  11/09/2026 03 PM PST           11.20             32         0      Not Applicable
  11/09/2026 04 PM PST           11.20             32         0      Not Applicable
  11/09/2026 05 PM PST           11.21             33         +      Not Applicable
  11/09/2026 06 PM PST           11.21             33         0      Not Applicable
  11/09/2026 07 PM PST           11.21             33         0      Not Applicable
  11/09/2026 08 PM PST           11.21             33         0      Not Applicable
  11/09/2026 09 PM PST           11.21             33         0      Not Applicable
  11/09/2026 10 PM PST           11.21             33         0      Not Applicable
  11/09/2026 11 PM PST           11.21             33         0      Not Applicable
  11/10/2026 12 AM PST           11.21             33         0      Not Applicable
  11/10/2026 01 AM PST           11.22             33         +      Not Applicable
  11/10/2026 02 AM PST           11.22             33         0      Not Applicable
  11/10/2026 03 AM PST           11.22             33         0      Not Applicable
  11/10/2026 04 AM PST           11.22             33         0      Not Applicable
  11/10/2026 05 AM PST           11.22             33         0      Not Applicable
  11/10/2026 06 AM PST           11.23             34         +      Not Applicable
  11/10/2026 07 AM PST           11.24             35         +      Not Applicable
#
# FORECAST
#
# Date & Time  (Local)    Stage (Feet)     Flow (cfs)     Trend     Forecast Status
# ---------------------------------------------------------------------------------
  11/10/2026 08 AM PST           11.25             36                Not Applicable
  11/10/2026 09 AM PST           11.26             37         +      Not Applicable
  11/10/2026 10 AM PST           11.27             38         +      Not Applicable
  11/10/2026 11 AM PST           11.28             39         +      Not Applicable
  11/10/2026 12 PM PST           11.28             39         0      Not Applicable
  11/10/2026 01 PM PST           11.28             39         0      Not Applicable
  11/10/2026 02 PM PST           11.29             40         +      Not Applicable
  11/10/2026 03 PM PST           11.28             39         -      Not Applicable
  11/10/2026 04 PM PST           11.28             39         0      Not Applicable
  11/10/2026 05 PM PST           11.28             39         0      Not Applicable
  11/10/2026 06 PM PST           11.27             38         -      Not Applicable
  11/10/2026 07 PM PST           11.27             38         0      Not Applicable
  11/10/2026 08 PM PST           11.26             37         -      Not Applicable
  11/10/2026 09 PM PST           11.26             37         0      Not Applicable
  11/10/2026 10 PM PST           11.25             36         -      Not Applicable
  11/10/2026 11 PM PST           11.24             35         -      Not Applicable
  11/11/2026 12 AM PST           11.24             35         0      Not Applicable
  11/11/2026 01 AM PST           11.23             34         -      Not Applicable
  11/11/2026 02 AM PST           11.22             33         -      Not Applicable
  11/11/2026 03 AM PST           11.22             33         0      Not Applicable
  11/11/2026 04 AM PST           11.21             33         -      Not Applicable
  11/11/2026 05 AM PST           11.21             33         0      Not Applicable
  11/11/2026 06 AM PST           11.20             32         -      Not Applicable
  11/11/2026 07 AM PST           11.20             32         0      Not Applicable
  11/11/2026 08 AM PST           11.19             31         -      Not Applicable
  11/11/2026 09 AM PST           11.19             31         0      Not Applicable
  11/11/2026 10 AM PST           11.18             30         -      Not Applicable
  11/11/2026 11 AM PST           11.18             30         0      Not Applicable
  11/11/2026 12 PM PST           11.18             30         0      Not Applicable
  11/11/2026 01 PM PST           11.17             29         -      Not Applicable
  11/11/2026 02 PM PST           11.17             29         0      Not Applicable
  11/11/2026 03 PM PST           11.17             29         0      Not Applicable
  11/11/2026 04 PM PST           11.16             28         -      Not Applicable
  11/11/2026 05 PM PST           11.16             28         0      Not Applicable
  11/11/2026 06 PM PST           11.16             28         0      Not Applicable
  11/11/2026 07 PM PST           11.16             28         0      Not Applicable
  11/11/2026 08 PM PST           11.15             28         -      Not Applicable
  11/11/2026 09 PM PST           11.15             28         0      Not Applicable
  11/11/2026 10 PM PST           11.15             28         0      Not Applicable
  11/11/2026 11 PM PST           11.15             28         0      Not Applicable
  11/12/2026 12 AM PST           11.15             28         0      Not Applicable
  11/12/2026 01 AM PST           11.14             27         -      Not Applicable
  11/12/2026 02 AM PST           11.14             27         0      Not Applicable
  11/12/2026 03 AM PST           11.14             27         0      Not Applicable
  11/12/2026 04 AM PST           11.14             27         0      Not Applicable
  11/12/2026 05 AM PST           11.14             27         0      Not Applicable
  11/12/2026 06 AM PST           11.14             27         0      Not Applicable
  11/12/2026 07 AM PST           11.14             27         0      Not Applicable
  11/12/2026 08 AM PST           11.14             27         0      Not Applicable
  11/12/2026 09 AM PST           11.13             26         -      Not Applicable
  11/12/2026 10 AM PST           11.13             26         0      Not Applicable
  11/12/2026 11 AM PST           11.13             26         0      Not Applicable
  11/12/2026 12 PM PST           11.13             26         0      Not Applicable
  11/12/2026 01 PM PST           11.13             26         0      Not Applicable
  11/12/2026 02 PM PST           11.13             26         0      Not Applicable
  11/12/2026 03 PM PST           11.13             26         0      Not Applicable
  11/12/2026 04 PM PST           11.13             26         0      Not Applicable
  11/12/2026 05 PM PST           11.13             26         0      Not Applicable
  11/12/2026 06 PM PST           11.13             26         0      Not Applicable
  11/12/2026 07 PM PST           11.13             26         0      Not Applicable
  11/12/2026 08 PM PST           11.12             25         -      Not Applicable
  11/12/2026 09 PM PST           11.12             25         0      Not Applicable
  11/12/2026 10 PM PST           11.12             25         0      Not Applicable
  11/12/2026 11 PM PST           11.12             25         0      Not Applicable
  11/13/2026 12 AM PST           11.12             25         0      Not Applicable
  11/13/2026 01 AM PST           11.12             25         0      Not Applicable
  11/13/2026 02 AM PST           11.12             25         0      Not Applicable
  11/13/2026 03 AM PST           11.12             25         0      Not Applicable
  11/13/2026 04 AM PST           11.12             25         0      Not Applicable
  11/13/2026 05 AM PST           11.12             25         0      Not Applicable
  11/13/2026 06 AM PST           11.12             25         0      Not Applicable
  11/13/2026 07 AM PST           11.12             25         0      Not Applicable
  11/13/2026 08 AM PST           11.12             25         0      Not Applicable
  11/13/2026 09 AM PST           11.12             25         0      Not Applicable
  11/13/2026 10 AM PST           11.13             26         +      Not Applicable
  11/13/2026 11 AM PST           11.13             26         0      Not Applicable
  11/13/2026 12 PM PST           11.13             26         0      Not Applicable
  11/13/2026 01 PM PST           11.14             27         +      Not Applicable
  11/13/2026 02 PM PST           11.14             27         0      Not Applicable
  11/13/2026 03 PM PST           11.15             28         +      Not Applicable
  11/13/2026 04 PM PST           11.16             28         +      Not Applicable
  11/13/2026 05 PM PST           11.18             30         +      Not Applicable
  11/13/2026 06 PM PST           11.20             32         +      Not Applicable
  11/13/2026 07 PM PST           11.23             34         +      Not Applicable
  11/13/2026 08 PM PST           11.27             38         +      Not Applicable
  11/13/2026 09 PM PST           11.32             43         +      Not Applicable
  11/13/2026 10 PM PST           11.38             50         +      Not Applicable
  11/13/2026 11 PM PST           11.46             60         +      Not Applicable
  11/14/2026 12 AM PST           11.53             70         +      Not Applicable
  11/14/2026 01 AM PST           11.60             81         +      Not Applicable
  11/14/2026 02 AM PST           11.66             91         +      Not Applicable
  11/14/2026 03 AM PST           11.70            102         +      Not Applicable
  11/14/2026 04 AM PST           11.73            112         +      Not Applicable
  11/14/2026 05 AM PST           11.75            119         +      Not Applicable
  11/14/2026 06 AM PST           11.77            126         +      Not Applicable
  11/14/2026 07 AM PST           11.78            130         +      Not Applicable
  11/14/2026 08 AM PST           11.79            134         +      Not Applicable
  11/14/2026 09 AM PST           11.80            138         +      Not Applicable
  11/14/2026 10 AM PST           11.80            138         0      Not Applicable
  11/14/2026 11 AM PST           11.80            138         0      Not Applicable
  11/14/2026 12 PM PST           11.80            138         0      Not Applicable
  11/14/2026 01 PM PST           11.80            138         0      Not Applicable
  11/14/2026 02 PM PST           11.80            138         0      Not Applicable
  11/14/2026 03 PM PST           11.80            138         0      Not Applicable
  11/14/2026 04 PM PST           11.79            134         -      Not Applicable
  11/14/2026 05 PM PST           11.79            134         0      Not Applicable
  11/14/2026 06 PM PST           11.78            130         -      Not Applicable
  11/14/2026 07 PM PST           11.78            130         0      Not Applicable
  11/14/2026 08 PM PST           11.77            126         -      Not Applicable
  11/14/2026 09 PM PST           11.76            122         -      Not Applicable
  11/14/2026 10 PM PST           11.75            119         -      Not Applicable
  11/14/2026 11 PM PST           11.74            115         -      Not Applicable
  11/15/2026 12 AM PST           11.73            112         -      Not Applicable
  11/15/2026 01 AM PST           11.72            108         -      Not Applicable
  11/15/2026 02 AM PST           11.71            105         -      Not Applicable
  11/15/2026 03 AM PST           11.70            102         -      Not Applicable
  11/15/2026 04 AM PST           11.69             98         -      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.