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 13 2026 at 1:47 PM PSTNext Issuance: Nov 14 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:  11/13/2026 at 01:49 PM PST
# Data Interval:  1 Hour
#
# Most Recent Date & Time of Maximum Observed:  11/13/2026 at 01:00 PM PST
# Maximum Observed Stage:                       11.77 Feet
# Maximum Observed Flow:                        126 cfs
#
# Earliest Date & Time of Maximum Forecast:     11/16/2026 at 01:00 AM PST
# Maximum Forecast Stage:                       12.34 Feet
# Maximum Forecast Flow:                        501 cfs
#
# OBSERVED
#
# Date & Time  (Local)    Stage (Feet)     Flow (cfs)     Trend     Observed Status
# ---------------------------------------------------------------------------------
  11/08/2026 01 PM PST           11.17             29                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           11.22             33         0      Not Applicable
  11/10/2026 07 AM PST           11.22             33         0      Not Applicable
  11/10/2026 08 AM PST           11.22             33         0      Not Applicable
  11/10/2026 09 AM PST           11.22             33         0      Not Applicable
  11/10/2026 10 AM PST           11.22             33         0      Not Applicable
  11/10/2026 11 AM PST           11.22             33         0      Not Applicable
  11/10/2026 12 PM PST           11.21             33         -      Not Applicable
  11/10/2026 01 PM PST           11.22             33         +      Not Applicable
  11/10/2026 02 PM PST           11.22             33         0      Not Applicable
  11/10/2026 03 PM PST           11.22             33         0      Not Applicable
  11/10/2026 04 PM PST           11.22             33         0      Not Applicable
  11/10/2026 05 PM PST           11.22             33         0      Not Applicable
  11/10/2026 06 PM PST           11.22             33         0      Not Applicable
  11/10/2026 07 PM PST           11.22             33         0      Not Applicable
  11/10/2026 08 PM PST           11.22             33         0      Not Applicable
  11/10/2026 09 PM PST           11.22             33         0      Not Applicable
  11/10/2026 10 PM PST           11.22             33         0      Not Applicable
  11/10/2026 11 PM PST           11.22             33         0      Not Applicable
  11/11/2026 12 AM PST           11.22             33         0      Not Applicable
  11/11/2026 01 AM PST           11.22             33         0      Not Applicable
  11/11/2026 02 AM PST           11.23             34         +      Not Applicable
  11/11/2026 03 AM PST           11.23             34         0      Not Applicable
  11/11/2026 04 AM PST           11.22             33         -      Not Applicable
  11/11/2026 05 AM PST           11.23             34         +      Not Applicable
  11/11/2026 06 AM PST           11.23             34         0      Not Applicable
  11/11/2026 07 AM PST           11.23             34         0      Not Applicable
  11/11/2026 08 AM PST           11.23             34         0      Not Applicable
  11/11/2026 09 AM PST           11.23             34         0      Not Applicable
  11/11/2026 10 AM PST           11.23             34         0      Not Applicable
  11/11/2026 11 AM PST           11.23             34         0      Not Applicable
  11/11/2026 12 PM PST           11.23             34         0      Not Applicable
  11/11/2026 01 PM PST           11.23             34         0      Not Applicable
  11/11/2026 02 PM PST           11.23             34         0      Not Applicable
  11/11/2026 03 PM PST           11.23             34         0      Not Applicable
  11/11/2026 04 PM PST           11.23             34         0      Not Applicable
  11/11/2026 05 PM PST           11.23             34         0      Not Applicable
  11/11/2026 06 PM PST           11.23             34         0      Not Applicable
  11/11/2026 07 PM PST           11.22             33         -      Not Applicable
  11/11/2026 08 PM PST           11.22             33         0      Not Applicable
  11/11/2026 09 PM PST           11.22             33         0      Not Applicable
  11/11/2026 10 PM PST           11.22             33         0      Not Applicable
  11/11/2026 11 PM PST           11.22             33         0      Not Applicable
  11/12/2026 12 AM PST           11.22             33         0      Not Applicable
  11/12/2026 01 AM PST           11.21             33         -      Not Applicable
  11/12/2026 02 AM PST           11.21             33         0      Not Applicable
  11/12/2026 03 AM PST           11.21             33         0      Not Applicable
  11/12/2026 04 AM PST           11.21             33         0      Not Applicable
  11/12/2026 05 AM PST           11.21             33         0      Not Applicable
  11/12/2026 06 AM PST           11.21             33         0      Not Applicable
  11/12/2026 07 AM PST           11.21             33         0      Not Applicable
  11/12/2026 08 AM PST           11.21             33         0      Not Applicable
  11/12/2026 09 AM PST           11.21             33         0      Not Applicable
  11/12/2026 10 AM PST           11.21             33         0      Not Applicable
  11/12/2026 11 AM PST           11.22             33         +      Not Applicable
  11/12/2026 12 PM PST           11.21             33         -      Not Applicable
  11/12/2026 01 PM PST           11.21             33         0      Not Applicable
  11/12/2026 02 PM PST           11.21             33         0      Not Applicable
  11/12/2026 03 PM PST           11.21             33         0      Not Applicable
  11/12/2026 04 PM PST           11.21             33         0      Not Applicable
  11/12/2026 05 PM PST           11.21             33         0      Not Applicable
  11/12/2026 06 PM PST           11.20             32         -      Not Applicable
  11/12/2026 07 PM PST           11.21             33         +      Not Applicable
  11/12/2026 08 PM PST           11.21             33         0      Not Applicable
  11/12/2026 09 PM PST           11.21             33         0      Not Applicable
  11/12/2026 10 PM PST           11.23             34         +      Not Applicable
  11/12/2026 11 PM PST           11.24             35         +      Not Applicable
  11/13/2026 12 AM PST           11.24             35         0      Not Applicable
  11/13/2026 01 AM PST           11.24             35         0      Not Applicable
  11/13/2026 02 AM PST           11.29             40         +      Not Applicable
  11/13/2026 03 AM PST           11.29             40         0      Not Applicable
  11/13/2026 04 AM PST           11.29             40         0      Not Applicable
  11/13/2026 05 AM PST           11.30             41         +      Not Applicable
  11/13/2026 06 AM PST           11.37             49         +      Not Applicable
  11/13/2026 07 AM PST           11.52             68         +      Not Applicable
  11/13/2026 08 AM PST           11.62             84         +      Not Applicable
  11/13/2026 09 AM PST           11.68             95         +      Not Applicable
  11/13/2026 10 AM PST           11.72            108         +      Not Applicable
  11/13/2026 11 AM PST           11.77            126         +      Not Applicable
  11/13/2026 12 PM PST           11.77            126         0      Not Applicable
  11/13/2026 01 PM PST           11.77            126         0      Not Applicable
#
# FORECAST
#
# Date & Time  (Local)    Stage (Feet)     Flow (cfs)     Trend     Forecast Status
# ---------------------------------------------------------------------------------
  11/13/2026 02 PM PST           11.78            130                Not Applicable
  11/13/2026 03 PM PST           11.79            134         +      Not Applicable
  11/13/2026 04 PM PST           11.81            142         +      Not Applicable
  11/13/2026 05 PM PST           11.83            150         +      Not Applicable
  11/13/2026 06 PM PST           11.85            159         +      Not Applicable
  11/13/2026 07 PM PST           11.87            168         +      Not Applicable
  11/13/2026 08 PM PST           11.90            183         +      Not Applicable
  11/13/2026 09 PM PST           11.93            198         +      Not Applicable
  11/13/2026 10 PM PST           11.96            214         +      Not Applicable
  11/13/2026 11 PM PST           12.00            237         +      Not Applicable
  11/14/2026 12 AM PST           12.03            255         +      Not Applicable
  11/14/2026 01 AM PST           12.06            274         +      Not Applicable
  11/14/2026 02 AM PST           12.09            294         +      Not Applicable
  11/14/2026 03 AM PST           12.11            308         +      Not Applicable
  11/14/2026 04 AM PST           12.12            315         +      Not Applicable
  11/14/2026 05 AM PST           12.12            315         0      Not Applicable
  11/14/2026 06 AM PST           12.13            322         +      Not Applicable
  11/14/2026 07 AM PST           12.13            322         0      Not Applicable
  11/14/2026 08 AM PST           12.12            315         -      Not Applicable
  11/14/2026 09 AM PST           12.12            315         0      Not Applicable
  11/14/2026 10 AM PST           12.11            308         -      Not Applicable
  11/14/2026 11 AM PST           12.10            301         -      Not Applicable
  11/14/2026 12 PM PST           12.09            294         -      Not Applicable
  11/14/2026 01 PM PST           12.08            287         -      Not Applicable
  11/14/2026 02 PM PST           12.06            274         -      Not Applicable
  11/14/2026 03 PM PST           12.05            267         -      Not Applicable
  11/14/2026 04 PM PST           12.03            255         -      Not Applicable
  11/14/2026 05 PM PST           12.02            249         -      Not Applicable
  11/14/2026 06 PM PST           12.00            237         -      Not Applicable
  11/14/2026 07 PM PST           11.98            225         -      Not Applicable
  11/14/2026 08 PM PST           11.96            214         -      Not Applicable
  11/14/2026 09 PM PST           11.95            208         -      Not Applicable
  11/14/2026 10 PM PST           11.93            198         -      Not Applicable
  11/14/2026 11 PM PST           11.92            193         -      Not Applicable
  11/15/2026 12 AM PST           11.90            183         -      Not Applicable
  11/15/2026 01 AM PST           11.89            178         -      Not Applicable
  11/15/2026 02 AM PST           11.87            168         -      Not Applicable
  11/15/2026 03 AM PST           11.86            164         -      Not Applicable
  11/15/2026 04 AM PST           11.85            159         -      Not Applicable
  11/15/2026 05 AM PST           11.83            150         -      Not Applicable
  11/15/2026 06 AM PST           11.82            146         -      Not Applicable
  11/15/2026 07 AM PST           11.81            142         -      Not Applicable
  11/15/2026 08 AM PST           11.80            138         -      Not Applicable
  11/15/2026 09 AM PST           11.79            134         -      Not Applicable
  11/15/2026 10 AM PST           11.79            134         0      Not Applicable
  11/15/2026 11 AM PST           11.78            130         -      Not Applicable
  11/15/2026 12 PM PST           11.79            134         +      Not Applicable
  11/15/2026 01 PM PST           11.80            138         +      Not Applicable
  11/15/2026 02 PM PST           11.83            150         +      Not Applicable
  11/15/2026 03 PM PST           11.87            168         +      Not Applicable
  11/15/2026 04 PM PST           11.92            193         +      Not Applicable
  11/15/2026 05 PM PST           11.98            225         +      Not Applicable
  11/15/2026 06 PM PST           12.04            261         +      Not Applicable
  11/15/2026 07 PM PST           12.11            308         +      Not Applicable
  11/15/2026 08 PM PST           12.18            360         +      Not Applicable
  11/15/2026 09 PM PST           12.24            409         +      Not Applicable
  11/15/2026 10 PM PST           12.28            445         +      Not Applicable
  11/15/2026 11 PM PST           12.31            473         +      Not Applicable
  11/16/2026 12 AM PST           12.33            492         +      Not Applicable
  11/16/2026 01 AM PST           12.34            501         +      Not Applicable
  11/16/2026 02 AM PST           12.33            492         -      Not Applicable
  11/16/2026 03 AM PST           12.32            482         -      Not Applicable
  11/16/2026 04 AM PST           12.31            473         -      Not Applicable
  11/16/2026 05 AM PST           12.29            454         -      Not Applicable
  11/16/2026 06 AM PST           12.27            436         -      Not Applicable
  11/16/2026 07 AM PST           12.25            418         -      Not Applicable
  11/16/2026 08 AM PST           12.22            392         -      Not Applicable
  11/16/2026 09 AM PST           12.20            376         -      Not Applicable
  11/16/2026 10 AM PST           12.17            352         -      Not Applicable
  11/16/2026 11 AM PST           12.14            329         -      Not Applicable
  11/16/2026 12 PM PST           12.12            315         -      Not Applicable
  11/16/2026 01 PM PST           12.11            308         -      Not Applicable
  11/16/2026 02 PM PST           12.09            294         -      Not Applicable
  11/16/2026 03 PM PST           12.07            280         -      Not Applicable
  11/16/2026 04 PM PST           12.06            274         -      Not Applicable
  11/16/2026 05 PM PST           12.04            261         -      Not Applicable
  11/16/2026 06 PM PST           12.03            255         -      Not Applicable
  11/16/2026 07 PM PST           12.02            249         -      Not Applicable
  11/16/2026 08 PM PST           12.01            243         -      Not Applicable
  11/16/2026 09 PM PST           12.00            237         -      Not Applicable
  11/16/2026 10 PM PST           11.99            231         -      Not Applicable
  11/16/2026 11 PM PST           11.99            231         0      Not Applicable
  11/17/2026 12 AM PST           11.98            225         -      Not Applicable
  11/17/2026 01 AM PST           11.97            219         -      Not Applicable
  11/17/2026 02 AM PST           11.96            214         -      Not Applicable
  11/17/2026 03 AM PST           11.96            214         0      Not Applicable
  11/17/2026 04 AM PST           11.95            208         -      Not Applicable
  11/17/2026 05 AM PST           11.94            203         -      Not Applicable
  11/17/2026 06 AM PST           11.93            198         -      Not Applicable
  11/17/2026 07 AM PST           11.92            193         -      Not Applicable
  11/17/2026 08 AM PST           11.91            188         -      Not Applicable
  11/17/2026 09 AM PST           11.90            183         -      Not Applicable
  11/17/2026 10 AM PST           11.89            178         -      Not Applicable
  11/17/2026 11 AM PST           11.88            173         -      Not Applicable
  11/17/2026 12 PM PST           11.86            164         -      Not Applicable
  11/17/2026 01 PM PST           11.85            159         -      Not Applicable
  11/17/2026 02 PM PST           11.84            155         -      Not Applicable
  11/17/2026 03 PM PST           11.83            150         -      Not Applicable
  11/17/2026 04 PM PST           11.82            146         -      Not Applicable
  11/17/2026 05 PM PST           11.80            138         -      Not Applicable
  11/17/2026 06 PM PST           11.79            134         -      Not Applicable
  11/17/2026 07 PM PST           11.78            130         -      Not Applicable
  11/17/2026 08 PM PST           11.77            126         -      Not Applicable
  11/17/2026 09 PM PST           11.76            122         -      Not Applicable
  11/17/2026 10 PM PST           11.75            119         -      Not Applicable
  11/17/2026 11 PM PST           11.74            115         -      Not Applicable
  11/18/2026 12 AM PST           11.73            112         -      Not Applicable
  11/18/2026 01 AM PST           11.72            108         -      Not Applicable
  11/18/2026 02 AM PST           11.71            105         -      Not Applicable
  11/18/2026 03 AM PST           11.70            102         -      Not Applicable
  11/18/2026 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.