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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: | May 15 2026 at 7:59 AM PDT | Next Issuance: | May 16 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: 05/15/2026 at 07:59 AM PDT
# Data Interval: 1 Hour
#
# Most Recent Date & Time of Maximum Observed: 05/10/2026 at 08:00 AM PDT
# Maximum Observed Stage: 63.11 Feet
# Maximum Observed Flow: 2610 cfs
#
# Earliest Date & Time of Maximum Forecast: 05/20/2026 at 12:00 AM PDT
# Maximum Forecast Stage: 62.38 Feet
# Maximum Forecast Flow: 1731 cfs
#
# OBSERVED
#
# Date & Time (Local) Stage (Feet) Flow (cfs) Trend Observed Status
# ---------------------------------------------------------------------------------
05/10/2026 07 AM PDT 63.08 2571 Normal
05/10/2026 08 AM PDT 63.11 2610 + Normal
05/10/2026 09 AM PDT 63.08 2571 - Normal
05/10/2026 10 AM PDT 63.03 2505 - Normal
05/10/2026 11 AM PDT 63.05 2531 + Normal
05/10/2026 12 PM PDT 63.04 2518 - Normal
05/10/2026 01 PM PDT 63.00 2466 - Normal
05/10/2026 02 PM PDT 62.98 2440 - Normal
05/10/2026 03 PM PDT 62.96 2414 - Normal
05/10/2026 04 PM PDT 62.96 2414 0 Normal
05/10/2026 05 PM PDT 62.92 2363 - Normal
05/10/2026 06 PM PDT 62.91 2351 - Normal
05/10/2026 07 PM PDT 62.92 2363 + Normal
05/10/2026 08 PM PDT 62.92 2363 0 Normal
05/10/2026 09 PM PDT 62.88 2313 - Normal
05/10/2026 10 PM PDT 62.89 2326 + Normal
05/10/2026 11 PM PDT 62.90 2338 + Normal
05/11/2026 12 AM PDT 62.92 2363 + Normal
05/11/2026 01 AM PDT 62.91 2351 - Normal
05/11/2026 02 AM PDT 62.92 2363 + Normal
05/11/2026 03 AM PDT 62.89 2326 - Normal
05/11/2026 04 AM PDT 62.91 2351 + Normal
05/11/2026 05 AM PDT 62.91 2351 0 Normal
05/11/2026 06 AM PDT 62.91 2351 0 Normal
05/11/2026 07 AM PDT 62.90 2338 - Normal
05/11/2026 08 AM PDT 62.86 2288 - Normal
05/11/2026 09 AM PDT 62.87 2300 + Normal
05/11/2026 10 AM PDT 62.85 2276 - Normal
05/11/2026 11 AM PDT 62.78 2190 - Normal
05/11/2026 12 PM PDT 62.73 2129 - Normal
05/11/2026 01 PM PDT 62.72 2117 - Normal
05/11/2026 02 PM PDT 62.69 2081 - Normal
05/11/2026 03 PM PDT 62.66 2046 - Normal
05/11/2026 04 PM PDT 62.65 2034 - Normal
05/11/2026 05 PM PDT 62.66 2046 + Normal
05/11/2026 06 PM PDT 62.64 2023 - Normal
05/11/2026 07 PM PDT 62.64 2023 0 Normal
05/11/2026 08 PM PDT 62.63 2011 - Normal
05/11/2026 09 PM PDT 62.62 1999 - Normal
05/11/2026 10 PM PDT 62.61 1988 - Normal
05/11/2026 11 PM PDT 62.61 1988 0 Normal
05/12/2026 12 AM PDT 62.62 1999 + Normal
05/12/2026 01 AM PDT 62.60 1976 - Normal
05/12/2026 02 AM PDT 62.61 1988 + Normal
05/12/2026 03 AM PDT 62.60 1976 - Normal
05/12/2026 04 AM PDT 62.61 1988 + Normal
05/12/2026 05 AM PDT 62.60 1976 - Normal
05/12/2026 06 AM PDT 62.59 1965 - Normal
05/12/2026 07 AM PDT 62.58 1953 - Normal
05/12/2026 08 AM PDT 62.59 1965 + Normal
05/12/2026 09 AM PDT 62.58 1953 - Normal
05/12/2026 10 AM PDT 62.58 1953 0 Normal
05/12/2026 11 AM PDT 62.56 1930 - Normal
05/12/2026 12 PM PDT 62.56 1930 0 Normal
05/12/2026 01 PM PDT 62.59 1965 + Normal
05/12/2026 02 PM PDT 62.56 1930 - Normal
05/12/2026 03 PM PDT 62.53 1896 - Normal
05/12/2026 04 PM PDT 62.51 1874 - Normal
05/12/2026 05 PM PDT 62.52 1885 + Normal
05/12/2026 06 PM PDT 62.52 1885 0 Normal
05/12/2026 07 PM PDT 62.52 1885 0 Normal
05/12/2026 08 PM PDT 62.49 1851 - Normal
05/12/2026 09 PM PDT 62.51 1874 + Normal
05/12/2026 10 PM PDT 62.50 1863 - Normal
05/12/2026 11 PM PDT 62.50 1863 0 Normal
05/13/2026 12 AM PDT 62.50 1863 0 Normal
05/13/2026 01 AM PDT 62.50 1863 0 Normal
05/13/2026 02 AM PDT 62.50 1863 0 Normal
05/13/2026 03 AM PDT 62.47 1829 - Normal
05/13/2026 04 AM PDT 62.49 1851 + Normal
05/13/2026 05 AM PDT 62.49 1851 0 Normal
05/13/2026 06 AM PDT 62.48 1840 - Normal
05/13/2026 07 AM PDT 62.50 1863 + Normal
05/13/2026 08 AM PDT 62.49 1851 - Normal
05/13/2026 09 AM PDT 62.47 1829 - Normal
05/13/2026 10 AM PDT 62.48 1840 + Normal
05/13/2026 11 AM PDT 62.48 1840 0 Normal
05/13/2026 12 PM PDT 62.49 1851 + Normal
05/13/2026 01 PM PDT 62.46 1818 - Normal
05/13/2026 02 PM PDT 62.46 1818 0 Normal
05/13/2026 03 PM PDT 62.44 1796 - Normal
05/13/2026 04 PM PDT 62.45 1807 + Normal
05/13/2026 05 PM PDT 62.42 1774 - Normal
05/13/2026 06 PM PDT 62.43 1785 + Normal
05/13/2026 07 PM PDT 62.44 1796 + Normal
05/13/2026 08 PM PDT 62.42 1774 - Normal
05/13/2026 09 PM PDT 62.40 1753 - Normal
05/13/2026 10 PM PDT 62.42 1774 + Normal
05/13/2026 11 PM PDT 62.42 1774 0 Normal
05/14/2026 12 AM PDT 62.39 1742 - Normal
05/14/2026 01 AM PDT 62.42 1774 + Normal
05/14/2026 02 AM PDT 62.40 1753 - Normal
05/14/2026 03 AM PDT 62.41 1763 + Normal
05/14/2026 04 AM PDT 62.41 1763 0 Normal
05/14/2026 05 AM PDT 62.41 1763 0 Normal
05/14/2026 06 AM PDT 62.42 1774 + Normal
05/14/2026 07 AM PDT 62.41 1763 - Normal
05/14/2026 08 AM PDT 62.40 1753 - Normal
05/14/2026 09 AM PDT 62.40 1753 0 Normal
05/14/2026 10 AM PDT 62.41 1763 + Normal
05/14/2026 11 AM PDT 62.41 1763 0 Normal
05/14/2026 12 PM PDT 62.41 1763 0 Normal
05/14/2026 01 PM PDT 62.41 1763 0 Normal
05/14/2026 02 PM PDT 62.40 1753 - Normal
05/14/2026 03 PM PDT 62.40 1753 0 Normal
05/14/2026 04 PM PDT 62.40 1753 0 Normal
05/14/2026 05 PM PDT 62.40 1753 0 Normal
05/14/2026 06 PM PDT 62.37 1720 - Normal
05/14/2026 07 PM PDT 62.33 1678 - Normal
05/14/2026 08 PM PDT 62.32 1667 - Normal
05/14/2026 09 PM PDT 62.30 1646 - Normal
05/14/2026 10 PM PDT 62.31 1657 + Normal
05/14/2026 11 PM PDT 62.31 1657 0 Normal
05/15/2026 12 AM PDT 62.30 1646 - Normal
05/15/2026 01 AM PDT 62.32 1667 + Normal
05/15/2026 02 AM PDT 62.30 1646 - Normal
05/15/2026 03 AM PDT 62.30 1646 0 Normal
05/15/2026 04 AM PDT 62.30 1646 0 Normal
05/15/2026 05 AM PDT 62.30 1646 0 Normal
05/15/2026 06 AM PDT 62.28 1625 - Normal
05/15/2026 07 AM PDT 62.27 1615 - Normal
#
# FORECAST
#
# Date & Time (Local) Stage (Feet) Flow (cfs) Trend Forecast Status
# ---------------------------------------------------------------------------------
05/15/2026 08 AM PDT 62.28 1625 Normal
05/15/2026 09 AM PDT 62.28 1625 0 Normal
05/15/2026 10 AM PDT 62.29 1636 + Normal
05/15/2026 11 AM PDT 62.31 1657 + Normal
05/15/2026 12 PM PDT 62.31 1657 0 Normal
05/15/2026 01 PM PDT 62.29 1636 - Normal
05/15/2026 02 PM PDT 62.28 1625 - Normal
05/15/2026 03 PM PDT 62.29 1636 + Normal
05/15/2026 04 PM PDT 62.29 1636 0 Normal
05/15/2026 05 PM PDT 62.30 1646 + Normal
05/15/2026 06 PM PDT 62.30 1646 0 Normal
05/15/2026 07 PM PDT 62.30 1646 0 Normal
05/15/2026 08 PM PDT 62.29 1636 - Normal
05/15/2026 09 PM PDT 62.28 1625 - Normal
05/15/2026 10 PM PDT 62.29 1636 + Normal
05/15/2026 11 PM PDT 62.29 1636 0 Normal
05/16/2026 12 AM PDT 62.29 1636 0 Normal
05/16/2026 01 AM PDT 62.31 1657 + Normal
05/16/2026 02 AM PDT 62.31 1657 0 Normal
05/16/2026 03 AM PDT 62.30 1646 - Normal
05/16/2026 04 AM PDT 62.28 1625 - Normal
05/16/2026 05 AM PDT 62.29 1636 + Normal
05/16/2026 06 AM PDT 62.30 1646 + Normal
05/16/2026 07 AM PDT 62.30 1646 0 Normal
05/16/2026 08 AM PDT 62.32 1667 + Normal
05/16/2026 09 AM PDT 62.32 1667 0 Normal
05/16/2026 10 AM PDT 62.30 1646 - Normal
05/16/2026 11 AM PDT 62.29 1636 - Normal
05/16/2026 12 PM PDT 62.30 1646 + Normal
05/16/2026 01 PM PDT 62.30 1646 0 Normal
05/16/2026 02 PM PDT 62.31 1657 + Normal
05/16/2026 03 PM PDT 62.31 1657 0 Normal
05/16/2026 04 PM PDT 62.31 1657 0 Normal
05/16/2026 05 PM PDT 62.33 1678 + Normal
05/16/2026 06 PM PDT 62.32 1667 - Normal
05/16/2026 07 PM PDT 62.31 1657 - Normal
05/16/2026 08 PM PDT 62.30 1646 - Normal
05/16/2026 09 PM PDT 62.30 1646 0 Normal
05/16/2026 10 PM PDT 62.31 1657 + Normal
05/16/2026 11 PM PDT 62.31 1657 0 Normal
05/17/2026 12 AM PDT 62.31 1657 0 Normal
05/17/2026 01 AM PDT 62.31 1657 0 Normal
05/17/2026 02 AM PDT 62.33 1678 + Normal
05/17/2026 03 AM PDT 62.33 1678 0 Normal
05/17/2026 04 AM PDT 62.31 1657 - Normal
05/17/2026 05 AM PDT 62.30 1646 - Normal
05/17/2026 06 AM PDT 62.31 1657 + Normal
05/17/2026 07 AM PDT 62.31 1657 0 Normal
05/17/2026 08 AM PDT 62.32 1667 + Normal
05/17/2026 09 AM PDT 62.32 1667 0 Normal
05/17/2026 10 AM PDT 62.32 1667 0 Normal
05/17/2026 11 AM PDT 62.34 1688 + Normal
05/17/2026 12 PM PDT 62.34 1688 0 Normal
05/17/2026 01 PM PDT 62.32 1667 - Normal
05/17/2026 02 PM PDT 62.33 1678 + Normal
05/17/2026 03 PM PDT 62.33 1678 0 Normal
05/17/2026 04 PM PDT 62.33 1678 0 Normal
05/17/2026 05 PM PDT 62.34 1688 + Normal
05/17/2026 06 PM PDT 62.34 1688 0 Normal
05/17/2026 07 PM PDT 62.32 1667 - Normal
05/17/2026 08 PM PDT 62.31 1657 - Normal
05/17/2026 09 PM PDT 62.32 1667 + Normal
05/17/2026 10 PM PDT 62.32 1667 0 Normal
05/17/2026 11 PM PDT 62.33 1678 + Normal
05/18/2026 12 AM PDT 62.33 1678 0 Normal
05/18/2026 01 AM PDT 62.33 1678 0 Normal
05/18/2026 02 AM PDT 62.35 1699 + Normal
05/18/2026 03 AM PDT 62.34 1688 - Normal
05/18/2026 04 AM PDT 62.33 1678 - Normal
05/18/2026 05 AM PDT 62.33 1678 0 Normal
05/18/2026 06 AM PDT 62.34 1688 + Normal
05/18/2026 07 AM PDT 62.34 1688 0 Normal
05/18/2026 08 AM PDT 62.34 1688 0 Normal
05/18/2026 09 AM PDT 62.34 1688 0 Normal
05/18/2026 10 AM PDT 62.35 1699 + Normal
05/18/2026 11 AM PDT 62.35 1699 0 Normal
05/18/2026 12 PM PDT 62.34 1688 - Normal
05/18/2026 01 PM PDT 62.34 1688 0 Normal
05/18/2026 02 PM PDT 62.36 1710 + Normal
05/18/2026 03 PM PDT 62.35 1699 - Normal
05/18/2026 04 PM PDT 62.34 1688 - Normal
05/18/2026 05 PM PDT 62.33 1678 - Normal
05/18/2026 06 PM PDT 62.33 1678 0 Normal
05/18/2026 07 PM PDT 62.34 1688 + Normal
05/18/2026 08 PM PDT 62.34 1688 0 Normal
05/18/2026 09 PM PDT 62.34 1688 0 Normal
05/18/2026 10 PM PDT 62.34 1688 0 Normal
05/18/2026 11 PM PDT 62.36 1710 + Normal
05/19/2026 12 AM PDT 62.36 1710 0 Normal
05/19/2026 01 AM PDT 62.34 1688 - Normal
05/19/2026 02 AM PDT 62.33 1678 - Normal
05/19/2026 03 AM PDT 62.34 1688 + Normal
05/19/2026 04 AM PDT 62.34 1688 0 Normal
05/19/2026 05 AM PDT 62.35 1699 + Normal
05/19/2026 06 AM PDT 62.36 1710 + Normal
05/19/2026 07 AM PDT 62.36 1710 0 Normal
05/19/2026 08 AM PDT 62.35 1699 - Normal
05/19/2026 09 AM PDT 62.34 1688 - Normal
05/19/2026 10 AM PDT 62.34 1688 0 Normal
05/19/2026 11 AM PDT 62.35 1699 + Normal
05/19/2026 12 PM PDT 62.35 1699 0 Normal
05/19/2026 01 PM PDT 62.36 1710 + Normal
05/19/2026 02 PM PDT 62.36 1710 0 Normal
05/19/2026 03 PM PDT 62.37 1720 + Normal
05/19/2026 04 PM PDT 62.37 1720 0 Normal
05/19/2026 05 PM PDT 62.36 1710 - Normal
05/19/2026 06 PM PDT 62.34 1688 - Normal
05/19/2026 07 PM PDT 62.35 1699 + Normal
05/19/2026 08 PM PDT 62.35 1699 0 Normal
05/19/2026 09 PM PDT 62.36 1710 + Normal
05/19/2026 10 PM PDT 62.36 1710 0 Normal
05/19/2026 11 PM PDT 62.36 1710 0 Normal
05/20/2026 12 AM PDT 62.38 1731 + Normal
05/20/2026 01 AM PDT 62.37 1720 - Normal
05/20/2026 02 AM PDT 62.36 1710 - Normal
05/20/2026 03 AM PDT 62.35 1699 - Normal
05/20/2026 04 AM PDT 62.36 1710 + Normal
05/20/2026 05 AM PDT 62.36 1710 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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