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YUBA RIVER - MARYSVILLE (MRYC1)
| Latitude: 39.18º N | Longitude: 121.52º W | Elevation: 88 Feet | | Forecast Type: Official Location |
| Location: Yuba County in California | Bulletin Group: Lower Sacramento | River Group: Feather Yuba |
| Issuance Time: | Aug 20 2026 at 6:41 AM PDT | Next Issuance: | Aug 21 2026 at 9:00 AM PDT
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| Action/Monitor: 74.0 Feet | Minor Flood: 87.0 Feet | Moderate Flood: 90.0 Feet | Major Flood: 91.0 Feet |
# Tabular Observed and Forecast Hydrograph Information
#
# Location: Yuba River - Marysville (MRYC1)
#
# File Generation Time: 08/20/2026 at 06:41 AM PDT
# Data Interval: 1 Hour
#
# Most Recent Date & Time of Maximum Observed: 08/19/2026 at 10:00 AM PDT
# Maximum Observed Stage: 61.24 Feet
# Maximum Observed Flow: 630 cfs
#
# Earliest Date & Time of Maximum Forecast: 08/23/2026 at 06:00 PM PDT
# Maximum Forecast Stage: 61.24 Feet
# Maximum Forecast Flow: 630 cfs
#
# OBSERVED
#
# Date & Time (Local) Stage (Feet) Flow (cfs) Trend Observed Status
# ---------------------------------------------------------------------------------
08/15/2026 06 AM PDT 61.15 575 Normal
08/15/2026 07 AM PDT 61.12 557 - Normal
08/15/2026 08 AM PDT 61.12 557 0 Normal
08/15/2026 09 AM PDT 61.12 557 0 Normal
08/15/2026 10 AM PDT 61.12 557 0 Normal
08/15/2026 11 AM PDT 61.12 557 0 Normal
08/15/2026 12 PM PDT 61.13 563 + Normal
08/15/2026 01 PM PDT 61.12 557 - Normal
08/15/2026 02 PM PDT 61.15 575 + Normal
08/15/2026 03 PM PDT 61.16 581 + Normal
08/15/2026 04 PM PDT 61.15 575 - Normal
08/15/2026 05 PM PDT 61.15 575 0 Normal
08/15/2026 06 PM PDT 61.15 575 0 Normal
08/15/2026 07 PM PDT 61.15 575 0 Normal
08/15/2026 08 PM PDT 61.13 563 - Normal
08/15/2026 09 PM PDT 61.13 563 0 Normal
08/15/2026 10 PM PDT 61.13 563 0 Normal
08/15/2026 11 PM PDT 61.14 569 + Normal
08/16/2026 12 AM PDT 61.14 569 0 Normal
08/16/2026 01 AM PDT 61.14 569 0 Normal
08/16/2026 02 AM PDT 61.14 569 0 Normal
08/16/2026 03 AM PDT 61.14 569 0 Normal
08/16/2026 04 AM PDT 61.15 575 + Normal
08/16/2026 05 AM PDT 61.15 575 0 Normal
08/16/2026 06 AM PDT 61.15 575 0 Normal
08/16/2026 07 AM PDT 61.15 575 0 Normal
08/16/2026 08 AM PDT 61.16 581 + Normal
08/16/2026 09 AM PDT 61.16 581 0 Normal
08/16/2026 10 AM PDT 61.15 575 - Normal
08/16/2026 11 AM PDT 61.16 581 + Normal
08/16/2026 12 PM PDT 61.15 575 - Normal
08/16/2026 01 PM PDT 61.16 581 + Normal
08/16/2026 02 PM PDT 61.16 581 0 Normal
08/16/2026 03 PM PDT 61.16 581 0 Normal
08/16/2026 04 PM PDT 61.15 575 - Normal
08/16/2026 05 PM PDT 61.15 575 0 Normal
08/16/2026 06 PM PDT 61.15 575 0 Normal
08/16/2026 07 PM PDT 61.14 569 - Normal
08/16/2026 08 PM PDT 61.12 557 - Normal
08/16/2026 09 PM PDT 61.12 557 0 Normal
08/16/2026 10 PM PDT 61.12 557 0 Normal
08/16/2026 11 PM PDT 61.13 563 + Normal
08/17/2026 12 AM PDT 61.13 563 0 Normal
08/17/2026 01 AM PDT 61.13 563 0 Normal
08/17/2026 02 AM PDT 61.14 569 + Normal
08/17/2026 03 AM PDT 61.14 569 0 Normal
08/17/2026 04 AM PDT 61.14 569 0 Normal
08/17/2026 05 AM PDT 61.14 569 0 Normal
08/17/2026 06 AM PDT 61.15 575 + Normal
08/17/2026 07 AM PDT 61.15 575 0 Normal
08/17/2026 08 AM PDT 61.16 581 + Normal
08/17/2026 09 AM PDT 61.18 593 + Normal
08/17/2026 10 AM PDT 61.15 575 - Normal
08/17/2026 11 AM PDT 61.13 563 - Normal
08/17/2026 12 PM PDT 61.13 563 0 Normal
08/17/2026 01 PM PDT 61.13 563 0 Normal
08/17/2026 02 PM PDT 61.14 569 + Normal
08/17/2026 03 PM PDT 61.14 569 0 Normal
08/17/2026 04 PM PDT 61.14 569 0 Normal
08/17/2026 05 PM PDT 61.15 575 + Normal
08/17/2026 06 PM PDT 61.15 575 0 Normal
08/17/2026 07 PM PDT 61.14 569 - Normal
08/17/2026 08 PM PDT 61.13 563 - Normal
08/17/2026 09 PM PDT 61.14 569 + Normal
08/17/2026 10 PM PDT 61.16 581 + Normal
08/17/2026 11 PM PDT 61.16 581 0 Normal
08/18/2026 12 AM PDT 61.16 581 0 Normal
08/18/2026 01 AM PDT 61.16 581 0 Normal
08/18/2026 02 AM PDT 61.16 581 0 Normal
08/18/2026 03 AM PDT 61.16 581 0 Normal
08/18/2026 04 AM PDT 61.17 587 + Normal
08/18/2026 05 AM PDT 61.17 587 0 Normal
08/18/2026 06 AM PDT 61.17 587 0 Normal
08/18/2026 07 AM PDT 61.17 587 0 Normal
08/18/2026 08 AM PDT 61.17 587 0 Normal
08/18/2026 09 AM PDT 61.18 593 + Normal
08/18/2026 10 AM PDT 61.16 581 - Normal
08/18/2026 11 AM PDT 61.17 587 + Normal
08/18/2026 12 PM PDT 61.17 587 0 Normal
08/18/2026 01 PM PDT 61.16 581 - Normal
08/18/2026 02 PM PDT 61.16 581 0 Normal
08/18/2026 03 PM PDT 61.17 587 + Normal
08/18/2026 04 PM PDT 61.19 599 + Normal
08/18/2026 05 PM PDT 61.19 599 0 Normal
08/18/2026 06 PM PDT 61.18 593 - Normal
08/18/2026 07 PM PDT 61.18 593 0 Normal
08/18/2026 08 PM PDT 61.19 599 + Normal
08/18/2026 09 PM PDT 61.21 612 + Normal
08/18/2026 10 PM PDT 61.22 618 + Normal
08/18/2026 11 PM PDT 61.23 624 + Normal
08/19/2026 12 AM PDT 61.23 624 0 Normal
08/19/2026 01 AM PDT 61.23 624 0 Normal
08/19/2026 02 AM PDT 61.23 624 0 Normal
08/19/2026 03 AM PDT 61.23 624 0 Normal
08/19/2026 04 AM PDT 61.24 630 + Normal
08/19/2026 05 AM PDT 61.24 630 0 Normal
08/19/2026 06 AM PDT 61.24 630 0 Normal
08/19/2026 07 AM PDT 61.23 624 - Normal
08/19/2026 08 AM PDT 61.23 624 0 Normal
08/19/2026 09 AM PDT 61.24 630 + Normal
08/19/2026 10 AM PDT 61.24 630 0 Normal
08/19/2026 11 AM PDT 61.22 618 - Normal
08/19/2026 12 PM PDT 61.22 618 0 Normal
08/19/2026 01 PM PDT 61.21 612 - Normal
08/19/2026 02 PM PDT 61.22 618 + Normal
08/19/2026 03 PM PDT 61.22 618 0 Normal
08/19/2026 04 PM PDT 61.23 624 + Normal
08/19/2026 05 PM PDT 61.22 618 - Normal
08/19/2026 06 PM PDT 61.20 605 - Normal
08/19/2026 07 PM PDT 61.20 605 0 Normal
08/19/2026 08 PM PDT 61.20 605 0 Normal
08/19/2026 09 PM PDT 61.19 599 - Normal
08/19/2026 10 PM PDT 61.19 599 0 Normal
08/19/2026 11 PM PDT 61.19 599 0 Normal
08/20/2026 12 AM PDT 61.20 605 + Normal
08/20/2026 01 AM PDT 61.20 605 0 Normal
08/20/2026 02 AM PDT 61.20 605 0 Normal
08/20/2026 03 AM PDT 61.20 605 0 Normal
08/20/2026 04 AM PDT 61.20 605 0 Normal
08/20/2026 05 AM PDT 61.20 605 0 Normal
08/20/2026 06 AM PDT 61.20 605 0 Normal
#
# FORECAST
#
# Date & Time (Local) Stage (Feet) Flow (cfs) Trend Forecast Status
# ---------------------------------------------------------------------------------
08/20/2026 07 AM PDT 61.20 605 Normal
08/20/2026 08 AM PDT 61.20 605 0 Normal
08/20/2026 09 AM PDT 61.19 599 - Normal
08/20/2026 10 AM PDT 61.18 593 - Normal
08/20/2026 11 AM PDT 61.18 593 0 Normal
08/20/2026 12 PM PDT 61.17 587 - Normal
08/20/2026 01 PM PDT 61.17 587 0 Normal
08/20/2026 02 PM PDT 61.17 587 0 Normal
08/20/2026 03 PM PDT 61.17 587 0 Normal
08/20/2026 04 PM PDT 61.17 587 0 Normal
08/20/2026 05 PM PDT 61.17 587 0 Normal
08/20/2026 06 PM PDT 61.19 599 + Normal
08/20/2026 07 PM PDT 61.19 599 0 Normal
08/20/2026 08 PM PDT 61.19 599 0 Normal
08/20/2026 09 PM PDT 61.19 599 0 Normal
08/20/2026 10 PM PDT 61.19 599 0 Normal
08/20/2026 11 PM PDT 61.19 599 0 Normal
08/21/2026 12 AM PDT 61.19 599 0 Normal
08/21/2026 01 AM PDT 61.19 599 0 Normal
08/21/2026 02 AM PDT 61.19 599 0 Normal
08/21/2026 03 AM PDT 61.19 599 0 Normal
08/21/2026 04 AM PDT 61.19 599 0 Normal
08/21/2026 05 AM PDT 61.19 599 0 Normal
08/21/2026 06 AM PDT 61.19 599 0 Normal
08/21/2026 07 AM PDT 61.19 599 0 Normal
08/21/2026 08 AM PDT 61.19 599 0 Normal
08/21/2026 09 AM PDT 61.19 599 0 Normal
08/21/2026 10 AM PDT 61.19 599 0 Normal
08/21/2026 11 AM PDT 61.19 599 0 Normal
08/21/2026 12 PM PDT 61.19 599 0 Normal
08/21/2026 01 PM PDT 61.19 599 0 Normal
08/21/2026 02 PM PDT 61.19 599 0 Normal
08/21/2026 03 PM PDT 61.19 599 0 Normal
08/21/2026 04 PM PDT 61.19 599 0 Normal
08/21/2026 05 PM PDT 61.19 599 0 Normal
08/21/2026 06 PM PDT 61.21 612 + Normal
08/21/2026 07 PM PDT 61.21 612 0 Normal
08/21/2026 08 PM PDT 61.21 612 0 Normal
08/21/2026 09 PM PDT 61.21 612 0 Normal
08/21/2026 10 PM PDT 61.21 612 0 Normal
08/21/2026 11 PM PDT 61.21 612 0 Normal
08/22/2026 12 AM PDT 61.21 612 0 Normal
08/22/2026 01 AM PDT 61.21 612 0 Normal
08/22/2026 02 AM PDT 61.21 612 0 Normal
08/22/2026 03 AM PDT 61.21 612 0 Normal
08/22/2026 04 AM PDT 61.21 612 0 Normal
08/22/2026 05 AM PDT 61.21 612 0 Normal
08/22/2026 06 AM PDT 61.21 612 0 Normal
08/22/2026 07 AM PDT 61.21 612 0 Normal
08/22/2026 08 AM PDT 61.21 612 0 Normal
08/22/2026 09 AM PDT 61.21 612 0 Normal
08/22/2026 10 AM PDT 61.21 612 0 Normal
08/22/2026 11 AM PDT 61.21 612 0 Normal
08/22/2026 12 PM PDT 61.21 612 0 Normal
08/22/2026 01 PM PDT 61.21 612 0 Normal
08/22/2026 02 PM PDT 61.21 612 0 Normal
08/22/2026 03 PM PDT 61.21 612 0 Normal
08/22/2026 04 PM PDT 61.21 612 0 Normal
08/22/2026 05 PM PDT 61.21 612 0 Normal
08/22/2026 06 PM PDT 61.23 624 + Normal
08/22/2026 07 PM PDT 61.23 624 0 Normal
08/22/2026 08 PM PDT 61.23 624 0 Normal
08/22/2026 09 PM PDT 61.23 624 0 Normal
08/22/2026 10 PM PDT 61.23 624 0 Normal
08/22/2026 11 PM PDT 61.23 624 0 Normal
08/23/2026 12 AM PDT 61.23 624 0 Normal
08/23/2026 01 AM PDT 61.23 624 0 Normal
08/23/2026 02 AM PDT 61.23 624 0 Normal
08/23/2026 03 AM PDT 61.23 624 0 Normal
08/23/2026 04 AM PDT 61.23 624 0 Normal
08/23/2026 05 AM PDT 61.23 624 0 Normal
08/23/2026 06 AM PDT 61.23 624 0 Normal
08/23/2026 07 AM PDT 61.23 624 0 Normal
08/23/2026 08 AM PDT 61.23 624 0 Normal
08/23/2026 09 AM PDT 61.23 624 0 Normal
08/23/2026 10 AM PDT 61.23 624 0 Normal
08/23/2026 11 AM PDT 61.23 624 0 Normal
08/23/2026 12 PM PDT 61.23 624 0 Normal
08/23/2026 01 PM PDT 61.23 624 0 Normal
08/23/2026 02 PM PDT 61.23 624 0 Normal
08/23/2026 03 PM PDT 61.23 624 0 Normal
08/23/2026 04 PM PDT 61.23 624 0 Normal
08/23/2026 05 PM PDT 61.23 624 0 Normal
08/23/2026 06 PM PDT 61.24 630 + Normal
08/23/2026 07 PM PDT 61.24 630 0 Normal
08/23/2026 08 PM PDT 61.24 630 0 Normal
08/23/2026 09 PM PDT 61.24 630 0 Normal
08/23/2026 10 PM PDT 61.24 630 0 Normal
08/23/2026 11 PM PDT 61.24 630 0 Normal
08/24/2026 12 AM PDT 61.24 630 0 Normal
08/24/2026 01 AM PDT 61.24 630 0 Normal
08/24/2026 02 AM PDT 61.24 630 0 Normal
08/24/2026 03 AM PDT 61.24 630 0 Normal
08/24/2026 04 AM PDT 61.24 630 0 Normal
08/24/2026 05 AM PDT 61.24 630 0 Normal
08/24/2026 06 AM PDT 61.24 630 0 Normal
08/24/2026 07 AM PDT 61.24 630 0 Normal
08/24/2026 08 AM PDT 61.24 630 0 Normal
08/24/2026 09 AM PDT 61.24 630 0 Normal
08/24/2026 10 AM PDT 61.24 630 0 Normal
08/24/2026 11 AM PDT 61.24 630 0 Normal
08/24/2026 12 PM PDT 61.24 630 0 Normal
08/24/2026 01 PM PDT 61.23 624 - Normal
08/24/2026 02 PM PDT 61.22 618 - Normal
08/24/2026 03 PM PDT 61.20 605 - Normal
08/24/2026 04 PM PDT 61.20 605 0 Normal
08/24/2026 05 PM PDT 61.20 605 0 Normal
08/24/2026 06 PM PDT 61.22 618 + Normal
08/24/2026 07 PM PDT 61.22 618 0 Normal
08/24/2026 08 PM PDT 61.22 618 0 Normal
08/24/2026 09 PM PDT 61.22 618 0 Normal
08/24/2026 10 PM PDT 61.22 618 0 Normal
08/24/2026 11 PM PDT 61.22 618 0 Normal
08/25/2026 12 AM PDT 61.22 618 0 Normal
08/25/2026 01 AM PDT 61.22 618 0 Normal
08/25/2026 02 AM PDT 61.22 618 0 Normal
08/25/2026 03 AM PDT 61.22 618 0 Normal
08/25/2026 04 AM PDT 61.22 618 0 Normal
08/25/2026 05 AM PDT 61.22 618 0 Normal
#
# 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.
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