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 Feet
Location: Humboldt County in CaliforniaBulletin Group: North CoastRiver Group: North Coast
Issuance Time: Jun 28 2025 at 8:19 AM PDTNext Issuance: Jun 29 2025 at 9:00 AM PDT
Action/Monitor: 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:  06/28/2025 at 08:22 AM PDT
# Data Interval:  1 Hour
#
# Most Recent Date & Time of Maximum Observed:  06/27/2025 at 07:00 PM PDT
# Maximum Observed Stage:                       11.01 Feet
# Maximum Observed Flow:                        145 cfs
#
# Earliest Date & Time of Maximum Forecast:     06/28/2025 at 09:00 AM PDT
# Maximum Forecast Stage:                       11.00 Feet
# Maximum Forecast Flow:                        142 cfs
#
# OBSERVED
#
# Date & Time  (Local)    Stage (Feet)     Flow (cfs)     Trend     Observed Status
# ---------------------------------------------------------------------------------
  06/23/2025 08 AM PDT           10.95            131                Not Applicable
  06/23/2025 09 AM PDT           10.95            131         0      Not Applicable
  06/23/2025 10 AM PDT           10.95            131         0      Not Applicable
  06/23/2025 11 AM PDT           10.94            128         -      Not Applicable
  06/23/2025 12 PM PDT           10.95            131         +      Not Applicable
  06/23/2025 01 PM PDT           10.95            131         0      Not Applicable
  06/23/2025 02 PM PDT           10.95            131         0      Not Applicable
  06/23/2025 03 PM PDT           10.95            131         0      Not Applicable
  06/23/2025 04 PM PDT           10.94            128         -      Not Applicable
  06/23/2025 05 PM PDT           10.94            128         0      Not Applicable
  06/23/2025 06 PM PDT           10.95            131         +      Not Applicable
  06/23/2025 07 PM PDT           10.95            131         0      Not Applicable
  06/23/2025 08 PM PDT           10.94            128         -      Not Applicable
  06/23/2025 09 PM PDT           10.94            128         0      Not Applicable
  06/23/2025 10 PM PDT           10.94            128         0      Not Applicable
  06/23/2025 11 PM PDT           10.94            128         0      Not Applicable
  06/24/2025 12 AM PDT           10.94            128         0      Not Applicable
  06/24/2025 01 AM PDT           10.94            128         0      Not Applicable
  06/24/2025 02 AM PDT           10.94            128         0      Not Applicable
  06/24/2025 03 AM PDT           10.94            128         0      Not Applicable
  06/24/2025 04 AM PDT           10.94            128         0      Not Applicable
  06/24/2025 05 AM PDT           10.94            128         0      Not Applicable
  06/24/2025 06 AM PDT           10.94            128         0      Not Applicable
  06/24/2025 07 AM PDT           10.94            128         0      Not Applicable
  06/24/2025 08 AM PDT           10.94            128         0      Not Applicable
  06/24/2025 09 AM PDT           10.94            128         0      Not Applicable
  06/24/2025 10 AM PDT           10.94            128         0      Not Applicable
  06/24/2025 11 AM PDT           10.94            128         0      Not Applicable
  06/24/2025 12 PM PDT           10.94            128         0      Not Applicable
  06/24/2025 01 PM PDT           10.94            128         0      Not Applicable
  06/24/2025 02 PM PDT           10.94            128         0      Not Applicable
  06/24/2025 03 PM PDT           10.94            128         0      Not Applicable
  06/24/2025 04 PM PDT           10.94            128         0      Not Applicable
  06/24/2025 05 PM PDT           10.94            128         0      Not Applicable
  06/24/2025 06 PM PDT           10.94            128         0      Not Applicable
  06/24/2025 07 PM PDT           10.94            128         0      Not Applicable
  06/24/2025 08 PM PDT           10.94            128         0      Not Applicable
  06/24/2025 09 PM PDT           10.94            128         0      Not Applicable
  06/24/2025 10 PM PDT           10.94            128         0      Not Applicable
  06/24/2025 11 PM PDT           10.94            128         0      Not Applicable
  06/25/2025 12 AM PDT           10.93            126         -      Not Applicable
  06/25/2025 01 AM PDT           10.94            128         +      Not Applicable
  06/25/2025 02 AM PDT           10.94            128         0      Not Applicable
  06/25/2025 03 AM PDT           10.94            128         0      Not Applicable
  06/25/2025 04 AM PDT           10.93            126         -      Not Applicable
  06/25/2025 05 AM PDT           10.93            126         0      Not Applicable
  06/25/2025 06 AM PDT           10.93            126         0      Not Applicable
  06/25/2025 07 AM PDT           10.93            126         0      Not Applicable
  06/25/2025 08 AM PDT           10.94            128         +      Not Applicable
  06/25/2025 09 AM PDT           10.94            128         0      Not Applicable
  06/25/2025 10 AM PDT           10.94            128         0      Not Applicable
  06/25/2025 11 AM PDT           10.93            126         -      Not Applicable
  06/25/2025 12 PM PDT           10.94            128         +      Not Applicable
  06/25/2025 01 PM PDT           10.93            126         -      Not Applicable
  06/25/2025 02 PM PDT           10.94            128         +      Not Applicable
  06/25/2025 03 PM PDT           10.94            128         0      Not Applicable
  06/25/2025 04 PM PDT           10.94            128         0      Not Applicable
  06/25/2025 05 PM PDT           10.94            128         0      Not Applicable
  06/25/2025 06 PM PDT           10.94            128         0      Not Applicable
  06/25/2025 07 PM PDT           10.94            128         0      Not Applicable
  06/25/2025 08 PM PDT           10.94            128         0      Not Applicable
  06/25/2025 09 PM PDT           10.93            126         -      Not Applicable
  06/25/2025 10 PM PDT           10.93            126         0      Not Applicable
  06/25/2025 11 PM PDT           10.93            126         0      Not Applicable
  06/26/2025 12 AM PDT           10.93            126         0      Not Applicable
  06/26/2025 01 AM PDT           10.93            126         0      Not Applicable
  06/26/2025 02 AM PDT           10.93            126         0      Not Applicable
  06/26/2025 03 AM PDT           10.93            126         0      Not Applicable
  06/26/2025 04 AM PDT           10.93            126         0      Not Applicable
  06/26/2025 05 AM PDT           10.93            126         0      Not Applicable
  06/26/2025 06 AM PDT           10.93            126         0      Not Applicable
  06/26/2025 07 AM PDT           10.93            126         0      Not Applicable
  06/26/2025 08 AM PDT           10.93            126         0      Not Applicable
  06/26/2025 09 AM PDT           10.93            126         0      Not Applicable
  06/26/2025 10 AM PDT           10.93            126         0      Not Applicable
  06/26/2025 11 AM PDT           10.93            126         0      Not Applicable
  06/26/2025 12 PM PDT           10.93            126         0      Not Applicable
  06/26/2025 01 PM PDT           10.93            126         0      Not Applicable
  06/26/2025 02 PM PDT           10.93            126         0      Not Applicable
  06/26/2025 03 PM PDT           10.93            126         0      Not Applicable
  06/26/2025 04 PM PDT           10.94            128         +      Not Applicable
  06/26/2025 05 PM PDT           10.93            126         -      Not Applicable
  06/26/2025 06 PM PDT           10.94            128         +      Not Applicable
  06/26/2025 07 PM PDT           10.93            126         -      Not Applicable
  06/26/2025 08 PM PDT           10.95            131         +      Not Applicable
  06/26/2025 09 PM PDT           10.95            131         0      Not Applicable
  06/26/2025 10 PM PDT           10.95            131         0      Not Applicable
  06/26/2025 11 PM PDT           10.94            128         -      Not Applicable
  06/27/2025 12 AM PDT           10.94            128         0      Not Applicable
  06/27/2025 01 AM PDT           10.94            128         0      Not Applicable
  06/27/2025 02 AM PDT           10.95            131         +      Not Applicable
  06/27/2025 03 AM PDT           10.94            128         -      Not Applicable
  06/27/2025 04 AM PDT           10.95            131         +      Not Applicable
  06/27/2025 05 AM PDT           10.95            131         0      Not Applicable
  06/27/2025 06 AM PDT           10.94            128         -      Not Applicable
  06/27/2025 07 AM PDT           10.95            131         +      Not Applicable
  06/27/2025 08 AM PDT           10.95            131         0      Not Applicable
  06/27/2025 09 AM PDT           10.94            128         -      Not Applicable
  06/27/2025 10 AM PDT           10.94            128         0      Not Applicable
  06/27/2025 11 AM PDT           10.94            128         0      Not Applicable
  06/27/2025 12 PM PDT           10.94            128         0      Not Applicable
  06/27/2025 01 PM PDT           10.94            128         0      Not Applicable
  06/27/2025 02 PM PDT           10.94            128         0      Not Applicable
  06/27/2025 03 PM PDT           10.94            128         0      Not Applicable
  06/27/2025 04 PM PDT           10.94            128         0      Not Applicable
  06/27/2025 05 PM PDT           10.95            131         +      Not Applicable
  06/27/2025 06 PM PDT           11.00            142         +      Not Applicable
  06/27/2025 07 PM PDT           11.01            145         +      Not Applicable
  06/27/2025 08 PM PDT           10.99            140         -      Not Applicable
  06/27/2025 09 PM PDT           10.99            140         0      Not Applicable
  06/27/2025 10 PM PDT           11.00            142         +      Not Applicable
  06/27/2025 11 PM PDT           11.00            142         0      Not Applicable
  06/28/2025 12 AM PDT           10.99            140         -      Not Applicable
  06/28/2025 01 AM PDT           10.99            140         0      Not Applicable
  06/28/2025 02 AM PDT           11.00            142         +      Not Applicable
  06/28/2025 03 AM PDT           10.99            140         -      Not Applicable
  06/28/2025 04 AM PDT           11.00            142         +      Not Applicable
  06/28/2025 05 AM PDT           11.00            142         0      Not Applicable
  06/28/2025 06 AM PDT           11.00            142         0      Not Applicable
  06/28/2025 07 AM PDT           11.00            142         0      Not Applicable
  06/28/2025 08 AM PDT           11.00            142         0      Not Applicable
#
# FORECAST
#
# Date & Time  (Local)    Stage (Feet)     Flow (cfs)     Trend     Forecast Status
# ---------------------------------------------------------------------------------
  06/28/2025 09 AM PDT           11.00            142                Not Applicable
  06/28/2025 10 AM PDT           11.00            142         0      Not Applicable
  06/28/2025 11 AM PDT           11.00            142         0      Not Applicable
  06/28/2025 12 PM PDT           11.00            142         0      Not Applicable
  06/28/2025 01 PM PDT           11.00            142         0      Not Applicable
  06/28/2025 02 PM PDT           11.00            142         0      Not Applicable
  06/28/2025 03 PM PDT           11.00            142         0      Not Applicable
  06/28/2025 04 PM PDT           11.00            142         0      Not Applicable
  06/28/2025 05 PM PDT           11.00            142         0      Not Applicable
  06/28/2025 06 PM PDT           11.00            142         0      Not Applicable
  06/28/2025 07 PM PDT           11.00            142         0      Not Applicable
  06/28/2025 08 PM PDT           11.00            142         0      Not Applicable
  06/28/2025 09 PM PDT           11.00            142         0      Not Applicable
  06/28/2025 10 PM PDT           11.00            142         0      Not Applicable
  06/28/2025 11 PM PDT           10.99            140         -      Not Applicable
  06/29/2025 12 AM PDT           10.99            140         0      Not Applicable
  06/29/2025 01 AM PDT           10.99            140         0      Not Applicable
  06/29/2025 02 AM PDT           10.99            140         0      Not Applicable
  06/29/2025 03 AM PDT           10.99            140         0      Not Applicable
  06/29/2025 04 AM PDT           10.99            140         0      Not Applicable
  06/29/2025 05 AM PDT           10.99            140         0      Not Applicable
  06/29/2025 06 AM PDT           10.99            140         0      Not Applicable
  06/29/2025 07 AM PDT           10.99            140         0      Not Applicable
  06/29/2025 08 AM PDT           10.99            140         0      Not Applicable
  06/29/2025 09 AM PDT           10.99            140         0      Not Applicable
  06/29/2025 10 AM PDT           10.99            140         0      Not Applicable
  06/29/2025 11 AM PDT           10.99            140         0      Not Applicable
  06/29/2025 12 PM PDT           10.99            140         0      Not Applicable
  06/29/2025 01 PM PDT           10.99            140         0      Not Applicable
  06/29/2025 02 PM PDT           10.99            140         0      Not Applicable
  06/29/2025 03 PM PDT           10.99            140         0      Not Applicable
  06/29/2025 04 PM PDT           10.99            140         0      Not Applicable
  06/29/2025 05 PM PDT           10.99            140         0      Not Applicable
  06/29/2025 06 PM PDT           10.99            140         0      Not Applicable
  06/29/2025 07 PM PDT           10.99            140         0      Not Applicable
  06/29/2025 08 PM PDT           10.99            140         0      Not Applicable
  06/29/2025 09 PM PDT           10.99            140         0      Not Applicable
  06/29/2025 10 PM PDT           10.99            140         0      Not Applicable
  06/29/2025 11 PM PDT           10.99            140         0      Not Applicable
  06/30/2025 12 AM PDT           10.98            138         -      Not Applicable
  06/30/2025 01 AM PDT           10.98            138         0      Not Applicable
  06/30/2025 02 AM PDT           10.98            138         0      Not Applicable
  06/30/2025 03 AM PDT           10.98            138         0      Not Applicable
  06/30/2025 04 AM PDT           10.98            138         0      Not Applicable
  06/30/2025 05 AM PDT           10.98            138         0      Not Applicable
  06/30/2025 06 AM PDT           10.98            138         0      Not Applicable
  06/30/2025 07 AM PDT           10.98            138         0      Not Applicable
  06/30/2025 08 AM PDT           10.98            138         0      Not Applicable
  06/30/2025 09 AM PDT           10.98            138         0      Not Applicable
  06/30/2025 10 AM PDT           10.98            138         0      Not Applicable
  06/30/2025 11 AM PDT           10.98            138         0      Not Applicable
  06/30/2025 12 PM PDT           10.98            138         0      Not Applicable
  06/30/2025 01 PM PDT           10.98            138         0      Not Applicable
  06/30/2025 02 PM PDT           10.98            138         0      Not Applicable
  06/30/2025 03 PM PDT           10.98            138         0      Not Applicable
  06/30/2025 04 PM PDT           10.98            138         0      Not Applicable
  06/30/2025 05 PM PDT           10.98            138         0      Not Applicable
  06/30/2025 06 PM PDT           10.98            138         0      Not Applicable
  06/30/2025 07 PM PDT           10.98            138         0      Not Applicable
  06/30/2025 08 PM PDT           10.98            138         0      Not Applicable
  06/30/2025 09 PM PDT           10.98            138         0      Not Applicable
  06/30/2025 10 PM PDT           10.98            138         0      Not Applicable
  06/30/2025 11 PM PDT           10.98            138         0      Not Applicable
  07/01/2025 12 AM PDT           10.97            135         -      Not Applicable
  07/01/2025 01 AM PDT           10.97            135         0      Not Applicable
  07/01/2025 02 AM PDT           10.97            135         0      Not Applicable
  07/01/2025 03 AM PDT           10.97            135         0      Not Applicable
  07/01/2025 04 AM PDT           10.97            135         0      Not Applicable
  07/01/2025 05 AM PDT           10.97            135         0      Not Applicable
  07/01/2025 06 AM PDT           10.97            135         0      Not Applicable
  07/01/2025 07 AM PDT           10.97            135         0      Not Applicable
  07/01/2025 08 AM PDT           10.97            135         0      Not Applicable
  07/01/2025 09 AM PDT           10.97            135         0      Not Applicable
  07/01/2025 10 AM PDT           10.97            135         0      Not Applicable
  07/01/2025 11 AM PDT           10.97            135         0      Not Applicable
  07/01/2025 12 PM PDT           10.97            135         0      Not Applicable
  07/01/2025 01 PM PDT           10.97            135         0      Not Applicable
  07/01/2025 02 PM PDT           10.97            135         0      Not Applicable
  07/01/2025 03 PM PDT           10.97            135         0      Not Applicable
  07/01/2025 04 PM PDT           10.97            135         0      Not Applicable
  07/01/2025 05 PM PDT           10.97            135         0      Not Applicable
  07/01/2025 06 PM PDT           10.97            135         0      Not Applicable
  07/01/2025 07 PM PDT           10.97            135         0      Not Applicable
  07/01/2025 08 PM PDT           10.97            135         0      Not Applicable
  07/01/2025 09 PM PDT           10.97            135         0      Not Applicable
  07/01/2025 10 PM PDT           10.97            135         0      Not Applicable
  07/01/2025 11 PM PDT           10.97            135         0      Not Applicable
  07/02/2025 12 AM PDT           10.97            135         0      Not Applicable
  07/02/2025 01 AM PDT           10.96            133         -      Not Applicable
  07/02/2025 02 AM PDT           10.96            133         0      Not Applicable
  07/02/2025 03 AM PDT           10.96            133         0      Not Applicable
  07/02/2025 04 AM PDT           10.96            133         0      Not Applicable
  07/02/2025 05 AM PDT           10.96            133         0      Not Applicable
  07/02/2025 06 AM PDT           10.96            133         0      Not Applicable
  07/02/2025 07 AM PDT           10.96            133         0      Not Applicable
  07/02/2025 08 AM PDT           10.96            133         0      Not Applicable
  07/02/2025 09 AM PDT           10.96            133         0      Not Applicable
  07/02/2025 10 AM PDT           10.96            133         0      Not Applicable
  07/02/2025 11 AM PDT           10.96            133         0      Not Applicable
  07/02/2025 12 PM PDT           10.96            133         0      Not Applicable
  07/02/2025 01 PM PDT           10.96            133         0      Not Applicable
  07/02/2025 02 PM PDT           10.96            133         0      Not Applicable
  07/02/2025 03 PM PDT           10.96            133         0      Not Applicable
  07/02/2025 04 PM PDT           10.96            133         0      Not Applicable
  07/02/2025 05 PM PDT           10.96            133         0      Not Applicable
  07/02/2025 06 PM PDT           10.96            133         0      Not Applicable
  07/02/2025 07 PM PDT           10.96            133         0      Not Applicable
  07/02/2025 08 PM PDT           10.96            133         0      Not Applicable
  07/02/2025 09 PM PDT           10.96            133         0      Not Applicable
  07/02/2025 10 PM PDT           10.96            133         0      Not Applicable
  07/02/2025 11 PM PDT           10.96            133         0      Not Applicable
  07/03/2025 12 AM PDT           10.96            133         0      Not Applicable
  07/03/2025 01 AM PDT           10.96            133         0      Not Applicable
  07/03/2025 02 AM PDT           10.96            133         0      Not Applicable
  07/03/2025 03 AM PDT           10.95            131         -      Not Applicable
  07/03/2025 04 AM PDT           10.95            131         0      Not Applicable
  07/03/2025 05 AM PDT           10.95            131         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.