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: Feb 16 2026 at 7:49 AM PSTNext Issuance: Feb 17 2026 at 9:00 AM PST
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:  02/16/2026 at 07:51 AM PST
# Data Interval:  1 Hour
#
# Most Recent Date & Time of Maximum Observed:  02/16/2026 at 02:00 AM PST
# Maximum Observed Stage:                       13.78 Feet
# Maximum Observed Flow:                        1952 cfs
#
# Earliest Date & Time of Maximum Forecast:     02/19/2026 at 05:00 PM PST
# Maximum Forecast Stage:                       14.63 Feet
# Maximum Forecast Flow:                        3066 cfs
#
# OBSERVED
#
# Date & Time  (Local)    Stage (Feet)     Flow (cfs)     Trend     Observed Status
# ---------------------------------------------------------------------------------
  02/11/2026 07 AM PST           12.28            388                Not Applicable
  02/11/2026 08 AM PST           12.28            388         0      Not Applicable
  02/11/2026 09 AM PST           12.28            388         0      Not Applicable
  02/11/2026 10 AM PST           12.28            388         0      Not Applicable
  02/11/2026 11 AM PST           12.28            388         0      Not Applicable
  02/11/2026 12 PM PST           12.28            388         0      Not Applicable
  02/11/2026 01 PM PST           12.28            388         0      Not Applicable
  02/11/2026 02 PM PST           12.28            388         0      Not Applicable
  02/11/2026 03 PM PST           12.28            388         0      Not Applicable
  02/11/2026 04 PM PST           12.28            388         0      Not Applicable
  02/11/2026 05 PM PST           12.27            381         -      Not Applicable
  02/11/2026 06 PM PST           12.23            354         -      Not Applicable
  02/11/2026 07 PM PST           12.23            354         0      Not Applicable
  02/11/2026 08 PM PST           12.22            347         -      Not Applicable
  02/11/2026 09 PM PST           12.23            354         +      Not Applicable
  02/11/2026 10 PM PST           12.22            347         -      Not Applicable
  02/11/2026 11 PM PST           12.22            347         0      Not Applicable
  02/12/2026 12 AM PST           12.23            354         +      Not Applicable
  02/12/2026 01 AM PST           12.22            347         -      Not Applicable
  02/12/2026 02 AM PST           12.22            347         0      Not Applicable
  02/12/2026 03 AM PST           12.22            347         0      Not Applicable
  02/12/2026 04 AM PST           12.22            347         0      Not Applicable
  02/12/2026 05 AM PST           12.22            347         0      Not Applicable
  02/12/2026 06 AM PST           12.22            347         0      Not Applicable
  02/12/2026 07 AM PST           12.22            347         0      Not Applicable
  02/12/2026 08 AM PST           12.22            347         0      Not Applicable
  02/12/2026 09 AM PST           12.22            347         0      Not Applicable
  02/12/2026 10 AM PST           12.22            347         0      Not Applicable
  02/12/2026 11 AM PST           12.22            347         0      Not Applicable
  02/12/2026 12 PM PST           12.22            347         0      Not Applicable
  02/12/2026 01 PM PST           12.22            347         0      Not Applicable
  02/12/2026 02 PM PST           12.22            347         0      Not Applicable
  02/12/2026 03 PM PST           12.22            347         0      Not Applicable
  02/12/2026 04 PM PST           12.21            341         -      Not Applicable
  02/12/2026 05 PM PST           12.21            341         0      Not Applicable
  02/12/2026 06 PM PST           12.21            341         0      Not Applicable
  02/12/2026 07 PM PST           12.21            341         0      Not Applicable
  02/12/2026 08 PM PST           12.21            341         0      Not Applicable
  02/12/2026 09 PM PST           12.20            334         -      Not Applicable
  02/12/2026 10 PM PST           12.20            334         0      Not Applicable
  02/12/2026 11 PM PST           12.20            334         0      Not Applicable
  02/13/2026 12 AM PST           12.20            334         0      Not Applicable
  02/13/2026 01 AM PST           12.20            334         0      Not Applicable
  02/13/2026 02 AM PST           12.20            334         0      Not Applicable
  02/13/2026 03 AM PST           12.20            334         0      Not Applicable
  02/13/2026 04 AM PST           12.19            328         -      Not Applicable
  02/13/2026 05 AM PST           12.19            328         0      Not Applicable
  02/13/2026 06 AM PST           12.19            328         0      Not Applicable
  02/13/2026 07 AM PST           12.19            328         0      Not Applicable
  02/13/2026 08 AM PST           12.19            328         0      Not Applicable
  02/13/2026 09 AM PST           12.19            328         0      Not Applicable
  02/13/2026 10 AM PST           12.19            328         0      Not Applicable
  02/13/2026 11 AM PST           12.19            328         0      Not Applicable
  02/13/2026 12 PM PST           12.19            328         0      Not Applicable
  02/13/2026 01 PM PST           12.19            328         0      Not Applicable
  02/13/2026 02 PM PST           12.18            322         -      Not Applicable
  02/13/2026 03 PM PST           12.19            328         +      Not Applicable
  02/13/2026 04 PM PST           12.18            322         -      Not Applicable
  02/13/2026 05 PM PST           12.18            322         0      Not Applicable
  02/13/2026 06 PM PST           12.18            322         0      Not Applicable
  02/13/2026 07 PM PST           12.18            322         0      Not Applicable
  02/13/2026 08 PM PST           12.18            322         0      Not Applicable
  02/13/2026 09 PM PST           12.18            322         0      Not Applicable
  02/13/2026 10 PM PST           12.18            322         0      Not Applicable
  02/13/2026 11 PM PST           12.18            322         0      Not Applicable
  02/14/2026 12 AM PST           12.18            322         0      Not Applicable
  02/14/2026 01 AM PST           12.18            322         0      Not Applicable
  02/14/2026 02 AM PST           12.18            322         0      Not Applicable
  02/14/2026 03 AM PST           12.17            314         -      Not Applicable
  02/14/2026 04 AM PST           12.18            322         +      Not Applicable
  02/14/2026 05 AM PST           12.17            314         -      Not Applicable
  02/14/2026 06 AM PST           12.17            314         0      Not Applicable
  02/14/2026 07 AM PST           12.17            314         0      Not Applicable
  02/14/2026 08 AM PST           12.17            314         0      Not Applicable
  02/14/2026 09 AM PST           12.17            314         0      Not Applicable
  02/14/2026 10 AM PST           12.17            314         0      Not Applicable
  02/14/2026 11 AM PST           12.17            314         0      Not Applicable
  02/14/2026 12 PM PST           12.17            314         0      Not Applicable
  02/14/2026 01 PM PST           12.17            314         0      Not Applicable
  02/14/2026 02 PM PST           12.18            322         +      Not Applicable
  02/14/2026 03 PM PST           12.17            314         -      Not Applicable
  02/14/2026 04 PM PST           12.17            314         0      Not Applicable
  02/14/2026 05 PM PST           12.17            314         0      Not Applicable
  02/14/2026 06 PM PST           12.17            314         0      Not Applicable
  02/14/2026 07 PM PST           12.17            314         0      Not Applicable
  02/14/2026 08 PM PST           12.17            314         0      Not Applicable
  02/14/2026 09 PM PST           12.17            314         0      Not Applicable
  02/14/2026 10 PM PST           12.17            314         0      Not Applicable
  02/14/2026 11 PM PST           12.17            314         0      Not Applicable
  02/15/2026 12 AM PST           12.17            314         0      Not Applicable
  02/15/2026 01 AM PST           12.17            314         0      Not Applicable
  02/15/2026 02 AM PST           12.17            314         0      Not Applicable
  02/15/2026 03 AM PST           12.17            314         0      Not Applicable
  02/15/2026 04 AM PST           12.17            314         0      Not Applicable
  02/15/2026 05 AM PST           12.17            314         0      Not Applicable
  02/15/2026 06 AM PST           12.18            322         +      Not Applicable
  02/15/2026 07 AM PST           12.18            322         0      Not Applicable
  02/15/2026 08 AM PST           12.18            322         0      Not Applicable
  02/15/2026 09 AM PST           12.20            334         +      Not Applicable
  02/15/2026 10 AM PST           12.21            341         +      Not Applicable
  02/15/2026 11 AM PST           12.22            347         +      Not Applicable
  02/15/2026 12 PM PST           12.24            360         +      Not Applicable
  02/15/2026 01 PM PST           12.25            367         +      Not Applicable
  02/15/2026 02 PM PST           12.28            388         +      Not Applicable
  02/15/2026 03 PM PST           12.32            417         +      Not Applicable
  02/15/2026 04 PM PST           12.36            448         +      Not Applicable
  02/15/2026 05 PM PST           12.43            503         +      Not Applicable
  02/15/2026 06 PM PST           12.54            589         +      Not Applicable
  02/15/2026 07 PM PST           12.68            701         +      Not Applicable
  02/15/2026 08 PM PST           12.82            821         +      Not Applicable
  02/15/2026 09 PM PST           12.98            998         +      Not Applicable
  02/15/2026 10 PM PST           13.25           1307         +      Not Applicable
  02/15/2026 11 PM PST           13.42           1509         +      Not Applicable
  02/16/2026 12 AM PST           13.57           1691         +      Not Applicable
  02/16/2026 01 AM PST           13.73           1889         +      Not Applicable
  02/16/2026 02 AM PST           13.78           1952         +      Not Applicable
  02/16/2026 03 AM PST           13.75           1914         -      Not Applicable
  02/16/2026 04 AM PST           13.76           1927         +      Not Applicable
  02/16/2026 05 AM PST           13.75           1914         -      Not Applicable
  02/16/2026 06 AM PST           13.71           1864         -      Not Applicable
  02/16/2026 07 AM PST           13.65           1790         -      Not Applicable
#
# FORECAST
#
# Date & Time  (Local)    Stage (Feet)     Flow (cfs)     Trend     Forecast Status
# ---------------------------------------------------------------------------------
  02/16/2026 08 AM PST           13.59           1716                Not Applicable
  02/16/2026 09 AM PST           13.52           1630         -      Not Applicable
  02/16/2026 10 AM PST           13.45           1545         -      Not Applicable
  02/16/2026 11 AM PST           13.37           1449         -      Not Applicable
  02/16/2026 12 PM PST           13.29           1354         -      Not Applicable
  02/16/2026 01 PM PST           13.20           1249         -      Not Applicable
  02/16/2026 02 PM PST           13.12           1156         -      Not Applicable
  02/16/2026 03 PM PST           13.05           1076         -      Not Applicable
  02/16/2026 04 PM PST           12.99           1009         -      Not Applicable
  02/16/2026 05 PM PST           12.94            953         -      Not Applicable
  02/16/2026 06 PM PST           12.89            898         -      Not Applicable
  02/16/2026 07 PM PST           12.85            854         -      Not Applicable
  02/16/2026 08 PM PST           12.82            821         -      Not Applicable
  02/16/2026 09 PM PST           12.79            792         -      Not Applicable
  02/16/2026 10 PM PST           12.76            767         -      Not Applicable
  02/16/2026 11 PM PST           12.74            750         -      Not Applicable
  02/17/2026 12 AM PST           12.73            742         -      Not Applicable
  02/17/2026 01 AM PST           12.72            734         -      Not Applicable
  02/17/2026 02 AM PST           12.71            726         -      Not Applicable
  02/17/2026 03 AM PST           12.72            734         +      Not Applicable
  02/17/2026 04 AM PST           12.73            742         +      Not Applicable
  02/17/2026 05 AM PST           12.78            783         +      Not Applicable
  02/17/2026 06 AM PST           12.92            931         +      Not Applicable
  02/17/2026 07 AM PST           13.07           1099         +      Not Applicable
  02/17/2026 08 AM PST           13.23           1284         +      Not Applicable
  02/17/2026 09 AM PST           13.39           1473         +      Not Applicable
  02/17/2026 10 AM PST           13.54           1654         +      Not Applicable
  02/17/2026 11 AM PST           13.67           1814         +      Not Applicable
  02/17/2026 12 PM PST           13.81           1990         +      Not Applicable
  02/17/2026 01 PM PST           13.94           2155         +      Not Applicable
  02/17/2026 02 PM PST           14.05           2296         +      Not Applicable
  02/17/2026 03 PM PST           14.13           2400         +      Not Applicable
  02/17/2026 04 PM PST           14.19           2479         +      Not Applicable
  02/17/2026 05 PM PST           14.23           2531         +      Not Applicable
  02/17/2026 06 PM PST           14.24           2544         +      Not Applicable
  02/17/2026 07 PM PST           14.24           2544         0      Not Applicable
  02/17/2026 08 PM PST           14.23           2531         -      Not Applicable
  02/17/2026 09 PM PST           14.21           2505         -      Not Applicable
  02/17/2026 10 PM PST           14.19           2479         -      Not Applicable
  02/17/2026 11 PM PST           14.17           2452         -      Not Applicable
  02/18/2026 12 AM PST           14.15           2426         -      Not Applicable
  02/18/2026 01 AM PST           14.14           2413         -      Not Applicable
  02/18/2026 02 AM PST           14.12           2387         -      Not Applicable
  02/18/2026 03 AM PST           14.11           2374         -      Not Applicable
  02/18/2026 04 AM PST           14.10           2361         -      Not Applicable
  02/18/2026 05 AM PST           14.10           2361         0      Not Applicable
  02/18/2026 06 AM PST           14.08           2335         -      Not Applicable
  02/18/2026 07 AM PST           14.06           2309         -      Not Applicable
  02/18/2026 08 AM PST           14.05           2296         -      Not Applicable
  02/18/2026 09 AM PST           14.04           2283         -      Not Applicable
  02/18/2026 10 AM PST           14.03           2270         -      Not Applicable
  02/18/2026 11 AM PST           14.01           2245         -      Not Applicable
  02/18/2026 12 PM PST           13.99           2219         -      Not Applicable
  02/18/2026 01 PM PST           13.97           2193         -      Not Applicable
  02/18/2026 02 PM PST           13.96           2180         -      Not Applicable
  02/18/2026 03 PM PST           13.94           2155         -      Not Applicable
  02/18/2026 04 PM PST           13.92           2129         -      Not Applicable
  02/18/2026 05 PM PST           13.91           2116         -      Not Applicable
  02/18/2026 06 PM PST           13.89           2091         -      Not Applicable
  02/18/2026 07 PM PST           13.88           2078         -      Not Applicable
  02/18/2026 08 PM PST           13.88           2078         0      Not Applicable
  02/18/2026 09 PM PST           13.87           2066         -      Not Applicable
  02/18/2026 10 PM PST           13.87           2066         0      Not Applicable
  02/18/2026 11 PM PST           13.87           2066         0      Not Applicable
  02/19/2026 12 AM PST           13.88           2078         +      Not Applicable
  02/19/2026 01 AM PST           13.89           2091         +      Not Applicable
  02/19/2026 02 AM PST           13.92           2129         +      Not Applicable
  02/19/2026 03 AM PST           13.94           2155         +      Not Applicable
  02/19/2026 04 AM PST           13.97           2193         +      Not Applicable
  02/19/2026 05 AM PST           14.02           2258         +      Not Applicable
  02/19/2026 06 AM PST           14.08           2335         +      Not Applicable
  02/19/2026 07 AM PST           14.15           2426         +      Not Applicable
  02/19/2026 08 AM PST           14.23           2531         +      Not Applicable
  02/19/2026 09 AM PST           14.30           2623         +      Not Applicable
  02/19/2026 10 AM PST           14.37           2716         +      Not Applicable
  02/19/2026 11 AM PST           14.43           2797         +      Not Applicable
  02/19/2026 12 PM PST           14.48           2864         +      Not Applicable
  02/19/2026 01 PM PST           14.52           2917         +      Not Applicable
  02/19/2026 02 PM PST           14.56           2971         +      Not Applicable
  02/19/2026 03 PM PST           14.60           3026         +      Not Applicable
  02/19/2026 04 PM PST           14.62           3053         +      Not Applicable
  02/19/2026 05 PM PST           14.63           3066         +      Not Applicable
  02/19/2026 06 PM PST           14.62           3053         -      Not Applicable
  02/19/2026 07 PM PST           14.60           3026         -      Not Applicable
  02/19/2026 08 PM PST           14.57           2985         -      Not Applicable
  02/19/2026 09 PM PST           14.54           2944         -      Not Applicable
  02/19/2026 10 PM PST           14.51           2904         -      Not Applicable
  02/19/2026 11 PM PST           14.46           2837         -      Not Applicable
  02/20/2026 12 AM PST           14.41           2770         -      Not Applicable
  02/20/2026 01 AM PST           14.36           2703         -      Not Applicable
  02/20/2026 02 AM PST           14.30           2623         -      Not Applicable
  02/20/2026 03 AM PST           14.25           2557         -      Not Applicable
  02/20/2026 04 AM PST           14.20           2492         -      Not Applicable
  02/20/2026 05 AM PST           14.15           2426         -      Not Applicable
  02/20/2026 06 AM PST           14.10           2361         -      Not Applicable
  02/20/2026 07 AM PST           14.05           2296         -      Not Applicable
  02/20/2026 08 AM PST           14.01           2245         -      Not Applicable
  02/20/2026 09 AM PST           13.98           2206         -      Not Applicable
  02/20/2026 10 AM PST           13.95           2168         -      Not Applicable
  02/20/2026 11 AM PST           13.92           2129         -      Not Applicable
  02/20/2026 12 PM PST           13.89           2091         -      Not Applicable
  02/20/2026 01 PM PST           13.86           2053         -      Not Applicable
  02/20/2026 02 PM PST           13.84           2028         -      Not Applicable
  02/20/2026 03 PM PST           13.82           2002         -      Not Applicable
  02/20/2026 04 PM PST           13.80           1977         -      Not Applicable
  02/20/2026 05 PM PST           13.79           1964         -      Not Applicable
  02/20/2026 06 PM PST           13.79           1964         0      Not Applicable
  02/20/2026 07 PM PST           13.80           1977         +      Not Applicable
  02/20/2026 08 PM PST           13.81           1990         +      Not Applicable
  02/20/2026 09 PM PST           13.82           2002         +      Not Applicable
  02/20/2026 10 PM PST           13.83           2015         +      Not Applicable
  02/20/2026 11 PM PST           13.84           2028         +      Not Applicable
  02/21/2026 12 AM PST           13.86           2053         +      Not Applicable
  02/21/2026 01 AM PST           13.88           2078         +      Not Applicable
  02/21/2026 02 AM PST           13.90           2104         +      Not Applicable
  02/21/2026 03 AM PST           13.92           2129         +      Not Applicable
  02/21/2026 04 AM PST           13.94           2155         +      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.