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

 | 

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 02 2026 at 12:49 PM PSTNext Issuance: Nov 03 2026 at 9:00 AM 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:  11/02/2026 at 12:50 PM PST
# Data Interval:  1 Hour
#
# Most Recent Date & Time of Maximum Observed:  10/30/2026 at 03:00 PM PDT
# Maximum Observed Stage:                       11.16 Feet
# Maximum Observed Flow:                        28 cfs
#
# Earliest Date & Time of Maximum Forecast:     11/04/2026 at 06:00 AM PST
# Maximum Forecast Stage:                       11.35 Feet
# Maximum Forecast Flow:                        46 cfs
#
# OBSERVED
#
# Date & Time  (Local)    Stage (Feet)     Flow (cfs)     Trend     Observed Status
# ---------------------------------------------------------------------------------
  10/28/2026 01 PM PDT           11.15             28                Not Applicable
  10/28/2026 02 PM PDT           11.15             28         0      Not Applicable
  10/28/2026 03 PM PDT           11.16             28         +      Not Applicable
  10/28/2026 04 PM PDT           11.16             28         0      Not Applicable
  10/28/2026 05 PM PDT           11.15             28         -      Not Applicable
  10/28/2026 06 PM PDT           11.15             28         0      Not Applicable
  10/28/2026 07 PM PDT           11.16             28         +      Not Applicable
  10/28/2026 08 PM PDT           11.16             28         0      Not Applicable
  10/28/2026 09 PM PDT           11.16             28         0      Not Applicable
  10/28/2026 10 PM PDT           11.15             28         -      Not Applicable
  10/28/2026 11 PM PDT           11.15             28         0      Not Applicable
  10/29/2026 12 AM PDT           11.15             28         0      Not Applicable
  10/29/2026 01 AM PDT           11.15             28         0      Not Applicable
  10/29/2026 02 AM PDT           11.15             28         0      Not Applicable
  10/29/2026 03 AM PDT           11.15             28         0      Not Applicable
  10/29/2026 04 AM PDT           11.15             28         0      Not Applicable
  10/29/2026 05 AM PDT           11.15             28         0      Not Applicable
  10/29/2026 06 AM PDT           11.14             27         -      Not Applicable
  10/29/2026 07 AM PDT           11.14             27         0      Not Applicable
  10/29/2026 08 AM PDT           11.15             28         +      Not Applicable
  10/29/2026 09 AM PDT           11.15             28         0      Not Applicable
  10/29/2026 10 AM PDT           11.14             27         -      Not Applicable
  10/29/2026 11 AM PDT           11.15             28         +      Not Applicable
  10/29/2026 12 PM PDT           11.14             27         -      Not Applicable
  10/29/2026 01 PM PDT           11.14             27         0      Not Applicable
  10/29/2026 02 PM PDT           11.14             27         0      Not Applicable
  10/29/2026 03 PM PDT           11.15             28         +      Not Applicable
  10/29/2026 04 PM PDT           11.15             28         0      Not Applicable
  10/29/2026 05 PM PDT           11.15             28         0      Not Applicable
  10/29/2026 06 PM PDT           11.15             28         0      Not Applicable
  10/29/2026 07 PM PDT           11.15             28         0      Not Applicable
  10/29/2026 08 PM PDT           11.15             28         0      Not Applicable
  10/29/2026 09 PM PDT           11.15             28         0      Not Applicable
  10/29/2026 10 PM PDT           11.16             28         +      Not Applicable
  10/29/2026 11 PM PDT           11.16             28         0      Not Applicable
  10/30/2026 12 AM PDT           11.16             28         0      Not Applicable
  10/30/2026 01 AM PDT           11.16             28         0      Not Applicable
  10/30/2026 02 AM PDT           11.15             28         -      Not Applicable
  10/30/2026 03 AM PDT           11.16             28         +      Not Applicable
  10/30/2026 04 AM PDT           11.15             28         -      Not Applicable
  10/30/2026 05 AM PDT           11.16             28         +      Not Applicable
  10/30/2026 06 AM PDT           11.16             28         0      Not Applicable
  10/30/2026 07 AM PDT           11.15             28         -      Not Applicable
  10/30/2026 08 AM PDT           11.16             28         +      Not Applicable
  10/30/2026 09 AM PDT           11.16             28         0      Not Applicable
  10/30/2026 10 AM PDT           11.16             28         0      Not Applicable
  10/30/2026 11 AM PDT           11.15             28         -      Not Applicable
  10/30/2026 12 PM PDT           11.15             28         0      Not Applicable
  10/30/2026 01 PM PDT           11.15             28         0      Not Applicable
  10/30/2026 02 PM PDT           11.16             28         +      Not Applicable
  10/30/2026 03 PM PDT           11.16             28         0      Not Applicable
  10/30/2026 04 PM PDT           11.15             28         -      Not Applicable
  10/30/2026 05 PM PDT           11.15             28         0      Not Applicable
  10/30/2026 06 PM PDT           11.15             28         0      Not Applicable
  10/30/2026 07 PM PDT           11.15             28         0      Not Applicable
  10/30/2026 08 PM PDT           11.15             28         0      Not Applicable
  10/30/2026 09 PM PDT           11.15             28         0      Not Applicable
  10/30/2026 10 PM PDT           11.15             28         0      Not Applicable
  10/30/2026 11 PM PDT           11.15             28         0      Not Applicable
  10/31/2026 12 AM PDT           11.15             28         0      Not Applicable
  10/31/2026 01 AM PDT           11.15             28         0      Not Applicable
  10/31/2026 02 AM PDT           11.15             28         0      Not Applicable
  10/31/2026 03 AM PDT           11.15             28         0      Not Applicable
  10/31/2026 04 AM PDT           11.15             28         0      Not Applicable
  10/31/2026 05 AM PDT           11.14             27         -      Not Applicable
  10/31/2026 06 AM PDT           11.14             27         0      Not Applicable
  10/31/2026 07 AM PDT           11.14             27         0      Not Applicable
  10/31/2026 08 AM PDT           11.14             27         0      Not Applicable
  10/31/2026 09 AM PDT           11.14             27         0      Not Applicable
  10/31/2026 10 AM PDT           11.14             27         0      Not Applicable
  10/31/2026 11 AM PDT           11.14             27         0      Not Applicable
  10/31/2026 12 PM PDT           11.14             27         0      Not Applicable
  10/31/2026 01 PM PDT           11.14             27         0      Not Applicable
  10/31/2026 02 PM PDT           11.14             27         0      Not Applicable
  10/31/2026 03 PM PDT           11.15             28         +      Not Applicable
  10/31/2026 04 PM PDT           11.15             28         0      Not Applicable
  10/31/2026 05 PM PDT           11.14             27         -      Not Applicable
  10/31/2026 06 PM PDT           11.15             28         +      Not Applicable
  10/31/2026 07 PM PDT           11.14             27         -      Not Applicable
  10/31/2026 08 PM PDT           11.15             28         +      Not Applicable
  10/31/2026 09 PM PDT           11.15             28         0      Not Applicable
  10/31/2026 10 PM PDT           11.15             28         0      Not Applicable
  10/31/2026 11 PM PDT           11.14             27         -      Not Applicable
  11/01/2026 12 AM PDT           11.14             27         0      Not Applicable
  11/01/2026 01 AM PDT           11.15             28         +      Not Applicable
  11/01/2026 01 AM PST           11.14             27         -      Not Applicable
  11/01/2026 02 AM PST           11.14             27         0      Not Applicable
  11/01/2026 03 AM PST           11.14             27         0      Not Applicable
  11/01/2026 04 AM PST           11.14             27         0      Not Applicable
  11/01/2026 05 AM PST           11.14             27         0      Not Applicable
  11/01/2026 06 AM PST           11.14             27         0      Not Applicable
  11/01/2026 07 AM PST           11.14             27         0      Not Applicable
  11/01/2026 08 AM PST           11.14             27         0      Not Applicable
  11/01/2026 09 AM PST           11.14             27         0      Not Applicable
  11/01/2026 10 AM PST           11.14             27         0      Not Applicable
  11/01/2026 11 AM PST           11.14             27         0      Not Applicable
  11/01/2026 12 PM PST           11.15             28         +      Not Applicable
  11/01/2026 01 PM PST           11.14             27         -      Not Applicable
  11/01/2026 02 PM PST           11.14             27         0      Not Applicable
  11/01/2026 03 PM PST           11.15             28         +      Not Applicable
  11/01/2026 04 PM PST           11.15             28         0      Not Applicable
  11/01/2026 05 PM PST           11.15             28         0      Not Applicable
  11/01/2026 06 PM PST           11.15             28         0      Not Applicable
  11/01/2026 07 PM PST           11.15             28         0      Not Applicable
  11/01/2026 08 PM PST           11.14             27         -      Not Applicable
  11/01/2026 09 PM PST           11.15             28         +      Not Applicable
  11/01/2026 10 PM PST           11.15             28         0      Not Applicable
  11/01/2026 11 PM PST           11.14             27         -      Not Applicable
  11/02/2026 12 AM PST           11.14             27         0      Not Applicable
  11/02/2026 01 AM PST           11.14             27         0      Not Applicable
  11/02/2026 02 AM PST           11.14             27         0      Not Applicable
  11/02/2026 03 AM PST           11.14             27         0      Not Applicable
  11/02/2026 04 AM PST           11.14             27         0      Not Applicable
  11/02/2026 05 AM PST           11.14             27         0      Not Applicable
  11/02/2026 06 AM PST           11.14             27         0      Not Applicable
  11/02/2026 07 AM PST           11.14             27         0      Not Applicable
  11/02/2026 08 AM PST           11.14             27         0      Not Applicable
  11/02/2026 09 AM PST           11.14             27         0      Not Applicable
  11/02/2026 10 AM PST           11.14             27         0      Not Applicable
  11/02/2026 11 AM PST           11.14             27         0      Not Applicable
  11/02/2026 12 PM PST           11.14             27         0      Not Applicable
#
# FORECAST
#
# Date & Time  (Local)    Stage (Feet)     Flow (cfs)     Trend     Forecast Status
# ---------------------------------------------------------------------------------
  11/02/2026 01 PM PST           11.14             27                Not Applicable
  11/02/2026 02 PM PST           11.14             27         0      Not Applicable
  11/02/2026 03 PM PST           11.13             26         -      Not Applicable
  11/02/2026 04 PM PST           11.13             26         0      Not Applicable
  11/02/2026 05 PM PST           11.13             26         0      Not Applicable
  11/02/2026 06 PM PST           11.13             26         0      Not Applicable
  11/02/2026 07 PM PST           11.13             26         0      Not Applicable
  11/02/2026 08 PM PST           11.13             26         0      Not Applicable
  11/02/2026 09 PM PST           11.13             26         0      Not Applicable
  11/02/2026 10 PM PST           11.13             26         0      Not Applicable
  11/02/2026 11 PM PST           11.12             25         -      Not Applicable
  11/03/2026 12 AM PST           11.12             25         0      Not Applicable
  11/03/2026 01 AM PST           11.12             25         0      Not Applicable
  11/03/2026 02 AM PST           11.12             25         0      Not Applicable
  11/03/2026 03 AM PST           11.12             25         0      Not Applicable
  11/03/2026 04 AM PST           11.12             25         0      Not Applicable
  11/03/2026 05 AM PST           11.12             25         0      Not Applicable
  11/03/2026 06 AM PST           11.12             25         0      Not Applicable
  11/03/2026 07 AM PST           11.12             25         0      Not Applicable
  11/03/2026 08 AM PST           11.12             25         0      Not Applicable
  11/03/2026 09 AM PST           11.12             25         0      Not Applicable
  11/03/2026 10 AM PST           11.12             25         0      Not Applicable
  11/03/2026 11 AM PST           11.12             25         0      Not Applicable
  11/03/2026 12 PM PST           11.12             25         0      Not Applicable
  11/03/2026 01 PM PST           11.12             25         0      Not Applicable
  11/03/2026 02 PM PST           11.12             25         0      Not Applicable
  11/03/2026 03 PM PST           11.12             25         0      Not Applicable
  11/03/2026 04 PM PST           11.13             26         +      Not Applicable
  11/03/2026 05 PM PST           11.13             26         0      Not Applicable
  11/03/2026 06 PM PST           11.14             27         +      Not Applicable
  11/03/2026 07 PM PST           11.15             28         +      Not Applicable
  11/03/2026 08 PM PST           11.17             29         +      Not Applicable
  11/03/2026 09 PM PST           11.19             31         +      Not Applicable
  11/03/2026 10 PM PST           11.21             33         +      Not Applicable
  11/03/2026 11 PM PST           11.23             34         +      Not Applicable
  11/04/2026 12 AM PST           11.26             37         +      Not Applicable
  11/04/2026 01 AM PST           11.28             39         +      Not Applicable
  11/04/2026 02 AM PST           11.30             41         +      Not Applicable
  11/04/2026 03 AM PST           11.32             43         +      Not Applicable
  11/04/2026 04 AM PST           11.33             44         +      Not Applicable
  11/04/2026 05 AM PST           11.34             45         +      Not Applicable
  11/04/2026 06 AM PST           11.35             46         +      Not Applicable
  11/04/2026 07 AM PST           11.35             46         0      Not Applicable
  11/04/2026 08 AM PST           11.35             46         0      Not Applicable
  11/04/2026 09 AM PST           11.35             46         0      Not Applicable
  11/04/2026 10 AM PST           11.34             45         -      Not Applicable
  11/04/2026 11 AM PST           11.33             44         -      Not Applicable
  11/04/2026 12 PM PST           11.32             43         -      Not Applicable
  11/04/2026 01 PM PST           11.31             42         -      Not Applicable
  11/04/2026 02 PM PST           11.30             41         -      Not Applicable
  11/04/2026 03 PM PST           11.29             40         -      Not Applicable
  11/04/2026 04 PM PST           11.28             39         -      Not Applicable
  11/04/2026 05 PM PST           11.27             38         -      Not Applicable
  11/04/2026 06 PM PST           11.25             36         -      Not Applicable
  11/04/2026 07 PM PST           11.24             35         -      Not Applicable
  11/04/2026 08 PM PST           11.23             34         -      Not Applicable
  11/04/2026 09 PM PST           11.22             33         -      Not Applicable
  11/04/2026 10 PM PST           11.21             33         -      Not Applicable
  11/04/2026 11 PM PST           11.20             32         -      Not Applicable
  11/05/2026 12 AM PST           11.20             32         0      Not Applicable
  11/05/2026 01 AM PST           11.19             31         -      Not Applicable
  11/05/2026 02 AM PST           11.18             30         -      Not Applicable
  11/05/2026 03 AM PST           11.18             30         0      Not Applicable
  11/05/2026 04 AM PST           11.17             29         -      Not Applicable
  11/05/2026 05 AM PST           11.16             28         -      Not Applicable
  11/05/2026 06 AM PST           11.16             28         0      Not Applicable
  11/05/2026 07 AM PST           11.15             28         -      Not Applicable
  11/05/2026 08 AM PST           11.15             28         0      Not Applicable
  11/05/2026 09 AM PST           11.14             27         -      Not Applicable
  11/05/2026 10 AM PST           11.14             27         0      Not Applicable
  11/05/2026 11 AM PST           11.14             27         0      Not Applicable
  11/05/2026 12 PM PST           11.13             26         -      Not Applicable
  11/05/2026 01 PM PST           11.13             26         0      Not Applicable
  11/05/2026 02 PM PST           11.13             26         0      Not Applicable
  11/05/2026 03 PM PST           11.12             25         -      Not Applicable
  11/05/2026 04 PM PST           11.12             25         0      Not Applicable
  11/05/2026 05 PM PST           11.12             25         0      Not Applicable
  11/05/2026 06 PM PST           11.12             25         0      Not Applicable
  11/05/2026 07 PM PST           11.12             25         0      Not Applicable
  11/05/2026 08 PM PST           11.12             25         0      Not Applicable
  11/05/2026 09 PM PST           11.12             25         0      Not Applicable
  11/05/2026 10 PM PST           11.11             24         -      Not Applicable
  11/05/2026 11 PM PST           11.11             24         0      Not Applicable
  11/06/2026 12 AM PST           11.11             24         0      Not Applicable
  11/06/2026 01 AM PST           11.11             24         0      Not Applicable
  11/06/2026 02 AM PST           11.11             24         0      Not Applicable
  11/06/2026 03 AM PST           11.11             24         0      Not Applicable
  11/06/2026 04 AM PST           11.11             24         0      Not Applicable
  11/06/2026 05 AM PST           11.11             24         0      Not Applicable
  11/06/2026 06 AM PST           11.11             24         0      Not Applicable
  11/06/2026 07 AM PST           11.11             24         0      Not Applicable
  11/06/2026 08 AM PST           11.11             24         0      Not Applicable
  11/06/2026 09 AM PST           11.11             24         0      Not Applicable
  11/06/2026 10 AM PST           11.11             24         0      Not Applicable
  11/06/2026 11 AM PST           11.11             24         0      Not Applicable
  11/06/2026 12 PM PST           11.11             24         0      Not Applicable
  11/06/2026 01 PM PST           11.11             24         0      Not Applicable
  11/06/2026 02 PM PST           11.10             23         -      Not Applicable
  11/06/2026 03 PM PST           11.10             23         0      Not Applicable
  11/06/2026 04 PM PST           11.10             23         0      Not Applicable
  11/06/2026 05 PM PST           11.10             23         0      Not Applicable
  11/06/2026 06 PM PST           11.10             23         0      Not Applicable
  11/06/2026 07 PM PST           11.10             23         0      Not Applicable
  11/06/2026 08 PM PST           11.10             23         0      Not Applicable
  11/06/2026 09 PM PST           11.10             23         0      Not Applicable
  11/06/2026 10 PM PST           11.10             23         0      Not Applicable
  11/06/2026 11 PM PST           11.10             23         0      Not Applicable
  11/07/2026 12 AM PST           11.10             23         0      Not Applicable
  11/07/2026 01 AM PST           11.10             23         0      Not Applicable
  11/07/2026 02 AM PST           11.10             23         0      Not Applicable
  11/07/2026 03 AM PST           11.10             23         0      Not Applicable
  11/07/2026 04 AM PST           11.10             23         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.