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: May 03 2025 at 9:58 AM PDTNext Issuance: May 04 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:  05/03/2025 at 10:00 AM PDT
# Data Interval:  1 Hour
#
# Most Recent Date & Time of Maximum Observed:  04/28/2025 at 11:00 AM PDT
# Maximum Observed Stage:                       13.31 Feet
# Maximum Observed Flow:                        1351 cfs
#
# Earliest Date & Time of Maximum Forecast:     05/03/2025 at 10:00 AM PDT
# Maximum Forecast Stage:                       13.19 Feet
# Maximum Forecast Flow:                        1194 cfs
#
# OBSERVED
#
# Date & Time  (Local)    Stage (Feet)     Flow (cfs)     Trend     Observed Status
# ---------------------------------------------------------------------------------
  04/28/2025 10 AM PDT           13.31           1351                Not Applicable
  04/28/2025 11 AM PDT           13.31           1351         0      Not Applicable
  04/28/2025 12 PM PDT           13.30           1338         -      Not Applicable
  04/28/2025 01 PM PDT           13.30           1338         0      Not Applicable
  04/28/2025 02 PM PDT           13.30           1338         0      Not Applicable
  04/28/2025 03 PM PDT           13.30           1338         0      Not Applicable
  04/28/2025 04 PM PDT           13.30           1338         0      Not Applicable
  04/28/2025 05 PM PDT           13.30           1338         0      Not Applicable
  04/28/2025 06 PM PDT           13.29           1324         -      Not Applicable
  04/28/2025 07 PM PDT           13.30           1338         +      Not Applicable
  04/28/2025 08 PM PDT           13.29           1324         -      Not Applicable
  04/28/2025 09 PM PDT           13.29           1324         0      Not Applicable
  04/28/2025 10 PM PDT           13.29           1324         0      Not Applicable
  04/28/2025 11 PM PDT           13.29           1324         0      Not Applicable
  04/29/2025 12 AM PDT           13.29           1324         0      Not Applicable
  04/29/2025 01 AM PDT           13.28           1311         -      Not Applicable
  04/29/2025 02 AM PDT           13.28           1311         0      Not Applicable
  04/29/2025 03 AM PDT           13.28           1311         0      Not Applicable
  04/29/2025 04 AM PDT           13.28           1311         0      Not Applicable
  04/29/2025 05 AM PDT           13.28           1311         0      Not Applicable
  04/29/2025 06 AM PDT           13.28           1311         0      Not Applicable
  04/29/2025 07 AM PDT           13.28           1311         0      Not Applicable
  04/29/2025 08 AM PDT           13.28           1311         0      Not Applicable
  04/29/2025 09 AM PDT           13.27           1297         -      Not Applicable
  04/29/2025 10 AM PDT           13.28           1311         +      Not Applicable
  04/29/2025 11 AM PDT           13.28           1311         0      Not Applicable
  04/29/2025 12 PM PDT           13.28           1311         0      Not Applicable
  04/29/2025 01 PM PDT           13.28           1311         0      Not Applicable
  04/29/2025 02 PM PDT           13.28           1311         0      Not Applicable
  04/29/2025 03 PM PDT           13.27           1297         -      Not Applicable
  04/29/2025 04 PM PDT           13.27           1297         0      Not Applicable
  04/29/2025 05 PM PDT           13.27           1297         0      Not Applicable
  04/29/2025 06 PM PDT           13.27           1297         0      Not Applicable
  04/29/2025 07 PM PDT           13.27           1297         0      Not Applicable
  04/29/2025 08 PM PDT           13.27           1297         0      Not Applicable
  04/29/2025 09 PM PDT           13.27           1297         0      Not Applicable
  04/29/2025 10 PM PDT           13.27           1297         0      Not Applicable
  04/29/2025 11 PM PDT           13.26           1284         -      Not Applicable
  04/30/2025 12 AM PDT           13.26           1284         0      Not Applicable
  04/30/2025 01 AM PDT           13.26           1284         0      Not Applicable
  04/30/2025 02 AM PDT           13.26           1284         0      Not Applicable
  04/30/2025 03 AM PDT           13.26           1284         0      Not Applicable
  04/30/2025 04 AM PDT           13.26           1284         0      Not Applicable
  04/30/2025 05 AM PDT           13.26           1284         0      Not Applicable
  04/30/2025 06 AM PDT           13.26           1284         0      Not Applicable
  04/30/2025 07 AM PDT           13.25           1270         -      Not Applicable
  04/30/2025 08 AM PDT           13.25           1270         0      Not Applicable
  04/30/2025 09 AM PDT           13.26           1284         +      Not Applicable
  04/30/2025 10 AM PDT           13.25           1270         -      Not Applicable
  04/30/2025 11 AM PDT           13.26           1284         +      Not Applicable
  04/30/2025 12 PM PDT           13.25           1270         -      Not Applicable
  04/30/2025 01 PM PDT           13.25           1270         0      Not Applicable
  04/30/2025 02 PM PDT           13.26           1284         +      Not Applicable
  04/30/2025 03 PM PDT           13.25           1270         -      Not Applicable
  04/30/2025 04 PM PDT           13.24           1257         -      Not Applicable
  04/30/2025 05 PM PDT           13.25           1270         +      Not Applicable
  04/30/2025 06 PM PDT           13.25           1270         0      Not Applicable
  04/30/2025 07 PM PDT           13.24           1257         -      Not Applicable
  04/30/2025 08 PM PDT           13.25           1270         +      Not Applicable
  04/30/2025 09 PM PDT           13.24           1257         -      Not Applicable
  04/30/2025 10 PM PDT           13.24           1257         0      Not Applicable
  04/30/2025 11 PM PDT           13.24           1257         0      Not Applicable
  05/01/2025 12 AM PDT           13.24           1257         0      Not Applicable
  05/01/2025 01 AM PDT           13.24           1257         0      Not Applicable
  05/01/2025 02 AM PDT           13.24           1257         0      Not Applicable
  05/01/2025 03 AM PDT           13.23           1244         -      Not Applicable
  05/01/2025 04 AM PDT           13.23           1244         0      Not Applicable
  05/01/2025 05 AM PDT           13.23           1244         0      Not Applicable
  05/01/2025 06 AM PDT           13.23           1244         0      Not Applicable
  05/01/2025 07 AM PDT           13.23           1244         0      Not Applicable
  05/01/2025 08 AM PDT           13.23           1244         0      Not Applicable
  05/01/2025 09 AM PDT           13.23           1244         0      Not Applicable
  05/01/2025 10 AM PDT           13.23           1244         0      Not Applicable
  05/01/2025 11 AM PDT           13.23           1244         0      Not Applicable
  05/01/2025 12 PM PDT           13.23           1244         0      Not Applicable
  05/01/2025 01 PM PDT           13.23           1244         0      Not Applicable
  05/01/2025 02 PM PDT           13.23           1244         0      Not Applicable
  05/01/2025 03 PM PDT           13.23           1244         0      Not Applicable
  05/01/2025 04 PM PDT           13.23           1244         0      Not Applicable
  05/01/2025 05 PM PDT           13.23           1244         0      Not Applicable
  05/01/2025 06 PM PDT           13.23           1244         0      Not Applicable
  05/01/2025 07 PM PDT           13.23           1244         0      Not Applicable
  05/01/2025 08 PM PDT           13.23           1244         0      Not Applicable
  05/01/2025 09 PM PDT           13.23           1244         0      Not Applicable
  05/01/2025 10 PM PDT           13.22           1230         -      Not Applicable
  05/01/2025 11 PM PDT           13.22           1230         0      Not Applicable
  05/02/2025 12 AM PDT           13.22           1230         0      Not Applicable
  05/02/2025 01 AM PDT           13.22           1230         0      Not Applicable
  05/02/2025 02 AM PDT           13.21           1217         -      Not Applicable
  05/02/2025 03 AM PDT           13.22           1230         +      Not Applicable
  05/02/2025 04 AM PDT           13.21           1217         -      Not Applicable
  05/02/2025 05 AM PDT           13.21           1217         0      Not Applicable
  05/02/2025 06 AM PDT           13.21           1217         0      Not Applicable
  05/02/2025 07 AM PDT           13.21           1217         0      Not Applicable
  05/02/2025 08 AM PDT           13.21           1217         0      Not Applicable
  05/02/2025 09 AM PDT           13.21           1217         0      Not Applicable
  05/02/2025 10 AM PDT           13.21           1217         0      Not Applicable
  05/02/2025 11 AM PDT           13.21           1217         0      Not Applicable
  05/02/2025 12 PM PDT           13.21           1217         0      Not Applicable
  05/02/2025 01 PM PDT           13.21           1217         0      Not Applicable
  05/02/2025 02 PM PDT           13.21           1217         0      Not Applicable
  05/02/2025 03 PM PDT           13.21           1217         0      Not Applicable
  05/02/2025 04 PM PDT           13.21           1217         0      Not Applicable
  05/02/2025 05 PM PDT           13.21           1217         0      Not Applicable
  05/02/2025 06 PM PDT           13.21           1217         0      Not Applicable
  05/02/2025 07 PM PDT           13.20           1205         -      Not Applicable
  05/02/2025 08 PM PDT           13.21           1217         +      Not Applicable
  05/02/2025 09 PM PDT           13.20           1205         -      Not Applicable
  05/02/2025 10 PM PDT           13.20           1205         0      Not Applicable
  05/02/2025 11 PM PDT           13.20           1205         0      Not Applicable
  05/03/2025 12 AM PDT           13.20           1205         0      Not Applicable
  05/03/2025 01 AM PDT           13.20           1205         0      Not Applicable
  05/03/2025 02 AM PDT           13.20           1205         0      Not Applicable
  05/03/2025 03 AM PDT           13.20           1205         0      Not Applicable
  05/03/2025 04 AM PDT           13.20           1205         0      Not Applicable
  05/03/2025 05 AM PDT           13.20           1205         0      Not Applicable
  05/03/2025 06 AM PDT           13.19           1194         -      Not Applicable
  05/03/2025 07 AM PDT           13.19           1194         0      Not Applicable
  05/03/2025 08 AM PDT           13.19           1194         0      Not Applicable
  05/03/2025 09 AM PDT           13.19           1194         0      Not Applicable
#
# FORECAST
#
# Date & Time  (Local)    Stage (Feet)     Flow (cfs)     Trend     Forecast Status
# ---------------------------------------------------------------------------------
  05/03/2025 10 AM PDT           13.19           1194                Not Applicable
  05/03/2025 11 AM PDT           13.19           1194         0      Not Applicable
  05/03/2025 12 PM PDT           13.19           1194         0      Not Applicable
  05/03/2025 01 PM PDT           13.18           1182         -      Not Applicable
  05/03/2025 02 PM PDT           13.18           1182         0      Not Applicable
  05/03/2025 03 PM PDT           13.18           1182         0      Not Applicable
  05/03/2025 04 PM PDT           13.18           1182         0      Not Applicable
  05/03/2025 05 PM PDT           13.18           1182         0      Not Applicable
  05/03/2025 06 PM PDT           13.18           1182         0      Not Applicable
  05/03/2025 07 PM PDT           13.18           1182         0      Not Applicable
  05/03/2025 08 PM PDT           13.18           1182         0      Not Applicable
  05/03/2025 09 PM PDT           13.18           1182         0      Not Applicable
  05/03/2025 10 PM PDT           13.18           1182         0      Not Applicable
  05/03/2025 11 PM PDT           13.18           1182         0      Not Applicable
  05/04/2025 12 AM PDT           13.17           1170         -      Not Applicable
  05/04/2025 01 AM PDT           13.17           1170         0      Not Applicable
  05/04/2025 02 AM PDT           13.17           1170         0      Not Applicable
  05/04/2025 03 AM PDT           13.17           1170         0      Not Applicable
  05/04/2025 04 AM PDT           13.17           1170         0      Not Applicable
  05/04/2025 05 AM PDT           13.17           1170         0      Not Applicable
  05/04/2025 06 AM PDT           13.17           1170         0      Not Applicable
  05/04/2025 07 AM PDT           13.17           1170         0      Not Applicable
  05/04/2025 08 AM PDT           13.16           1158         -      Not Applicable
  05/04/2025 09 AM PDT           13.16           1158         0      Not Applicable
  05/04/2025 10 AM PDT           13.16           1158         0      Not Applicable
  05/04/2025 11 AM PDT           13.16           1158         0      Not Applicable
  05/04/2025 12 PM PDT           13.16           1158         0      Not Applicable
  05/04/2025 01 PM PDT           13.16           1158         0      Not Applicable
  05/04/2025 02 PM PDT           13.16           1158         0      Not Applicable
  05/04/2025 03 PM PDT           13.16           1158         0      Not Applicable
  05/04/2025 04 PM PDT           13.16           1158         0      Not Applicable
  05/04/2025 05 PM PDT           13.15           1146         -      Not Applicable
  05/04/2025 06 PM PDT           13.15           1146         0      Not Applicable
  05/04/2025 07 PM PDT           13.15           1146         0      Not Applicable
  05/04/2025 08 PM PDT           13.15           1146         0      Not Applicable
  05/04/2025 09 PM PDT           13.15           1146         0      Not Applicable
  05/04/2025 10 PM PDT           13.15           1146         0      Not Applicable
  05/04/2025 11 PM PDT           13.15           1146         0      Not Applicable
  05/05/2025 12 AM PDT           13.15           1146         0      Not Applicable
  05/05/2025 01 AM PDT           13.15           1146         0      Not Applicable
  05/05/2025 02 AM PDT           13.15           1146         0      Not Applicable
  05/05/2025 03 AM PDT           13.14           1135         -      Not Applicable
  05/05/2025 04 AM PDT           13.14           1135         0      Not Applicable
  05/05/2025 05 AM PDT           13.14           1135         0      Not Applicable
  05/05/2025 06 AM PDT           13.14           1135         0      Not Applicable
  05/05/2025 07 AM PDT           13.14           1135         0      Not Applicable
  05/05/2025 08 AM PDT           13.14           1135         0      Not Applicable
  05/05/2025 09 AM PDT           13.14           1135         0      Not Applicable
  05/05/2025 10 AM PDT           13.14           1135         0      Not Applicable
  05/05/2025 11 AM PDT           13.14           1135         0      Not Applicable
  05/05/2025 12 PM PDT           13.14           1135         0      Not Applicable
  05/05/2025 01 PM PDT           13.13           1123         -      Not Applicable
  05/05/2025 02 PM PDT           13.13           1123         0      Not Applicable
  05/05/2025 03 PM PDT           13.13           1123         0      Not Applicable
  05/05/2025 04 PM PDT           13.13           1123         0      Not Applicable
  05/05/2025 05 PM PDT           13.13           1123         0      Not Applicable
  05/05/2025 06 PM PDT           13.13           1123         0      Not Applicable
  05/05/2025 07 PM PDT           13.13           1123         0      Not Applicable
  05/05/2025 08 PM PDT           13.13           1123         0      Not Applicable
  05/05/2025 09 PM PDT           13.13           1123         0      Not Applicable
  05/05/2025 10 PM PDT           13.12           1111         -      Not Applicable
  05/05/2025 11 PM PDT           13.12           1111         0      Not Applicable
  05/06/2025 12 AM PDT           13.12           1111         0      Not Applicable
  05/06/2025 01 AM PDT           13.12           1111         0      Not Applicable
  05/06/2025 02 AM PDT           13.12           1111         0      Not Applicable
  05/06/2025 03 AM PDT           13.12           1111         0      Not Applicable
  05/06/2025 04 AM PDT           13.12           1111         0      Not Applicable
  05/06/2025 05 AM PDT           13.12           1111         0      Not Applicable
  05/06/2025 06 AM PDT           13.12           1111         0      Not Applicable
  05/06/2025 07 AM PDT           13.12           1111         0      Not Applicable
  05/06/2025 08 AM PDT           13.12           1111         0      Not Applicable
  05/06/2025 09 AM PDT           13.11           1099         -      Not Applicable
  05/06/2025 10 AM PDT           13.11           1099         0      Not Applicable
  05/06/2025 11 AM PDT           13.11           1099         0      Not Applicable
  05/06/2025 12 PM PDT           13.11           1099         0      Not Applicable
  05/06/2025 01 PM PDT           13.11           1099         0      Not Applicable
  05/06/2025 02 PM PDT           13.11           1099         0      Not Applicable
  05/06/2025 03 PM PDT           13.11           1099         0      Not Applicable
  05/06/2025 04 PM PDT           13.11           1099         0      Not Applicable
  05/06/2025 05 PM PDT           13.11           1099         0      Not Applicable
  05/06/2025 06 PM PDT           13.11           1099         0      Not Applicable
  05/06/2025 07 PM PDT           13.10           1088         -      Not Applicable
  05/06/2025 08 PM PDT           13.10           1088         0      Not Applicable
  05/06/2025 09 PM PDT           13.10           1088         0      Not Applicable
  05/06/2025 10 PM PDT           13.10           1088         0      Not Applicable
  05/06/2025 11 PM PDT           13.10           1088         0      Not Applicable
  05/07/2025 12 AM PDT           13.10           1088         0      Not Applicable
  05/07/2025 01 AM PDT           13.10           1088         0      Not Applicable
  05/07/2025 02 AM PDT           13.10           1088         0      Not Applicable
  05/07/2025 03 AM PDT           13.10           1088         0      Not Applicable
  05/07/2025 04 AM PDT           13.10           1088         0      Not Applicable
  05/07/2025 05 AM PDT           13.09           1076         -      Not Applicable
  05/07/2025 06 AM PDT           13.09           1076         0      Not Applicable
  05/07/2025 07 AM PDT           13.09           1076         0      Not Applicable
  05/07/2025 08 AM PDT           13.09           1076         0      Not Applicable
  05/07/2025 09 AM PDT           13.09           1076         0      Not Applicable
  05/07/2025 10 AM PDT           13.09           1076         0      Not Applicable
  05/07/2025 11 AM PDT           13.09           1076         0      Not Applicable
  05/07/2025 12 PM PDT           13.09           1076         0      Not Applicable
  05/07/2025 01 PM PDT           13.09           1076         0      Not Applicable
  05/07/2025 02 PM PDT           13.08           1064         -      Not Applicable
  05/07/2025 03 PM PDT           13.08           1064         0      Not Applicable
  05/07/2025 04 PM PDT           13.08           1064         0      Not Applicable
  05/07/2025 05 PM PDT           13.08           1064         0      Not Applicable
  05/07/2025 06 PM PDT           13.08           1064         0      Not Applicable
  05/07/2025 07 PM PDT           13.08           1064         0      Not Applicable
  05/07/2025 08 PM PDT           13.08           1064         0      Not Applicable
  05/07/2025 09 PM PDT           13.08           1064         0      Not Applicable
  05/07/2025 10 PM PDT           13.08           1064         0      Not Applicable
  05/07/2025 11 PM PDT           13.07           1053         -      Not Applicable
  05/08/2025 12 AM PDT           13.07           1053         0      Not Applicable
  05/08/2025 01 AM PDT           13.07           1053         0      Not Applicable
  05/08/2025 02 AM PDT           13.07           1053         0      Not Applicable
  05/08/2025 03 AM PDT           13.07           1053         0      Not Applicable
  05/08/2025 04 AM PDT           13.07           1053         0      Not Applicable
  05/08/2025 05 AM PDT           13.07           1053         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.