National Weather Service California Nevada River Forecast Center Department of Commerce National Oceanic and Atmospheric Administration National Weather Service

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YUBA RIVER - MARYSVILLE (MRYC1)
Latitude: 39.18º NLongitude: 121.52º WElevation: 88 FeetForecast Type: Official Location
Location: Yuba County in CaliforniaBulletin Group: Lower SacramentoRiver Group: Feather Yuba
Issuance Time: Apr 23 2026 at 7:41 AM PDTNext Issuance: Apr 24 2026 at 9:00 AM PDT
Action/Monitor: 74.0 FeetMinor Flood: 87.0 FeetModerate Flood: 90.0 FeetMajor Flood: 91.0 Feet


# Tabular Observed and Forecast Hydrograph Information
#
# Location: Yuba River - Marysville (MRYC1)
#
# File Generation Time:  04/23/2026 at 07:41 AM PDT
# Data Interval:  1 Hour
#
# Most Recent Date & Time of Maximum Observed:  04/22/2026 at 02:00 AM PDT
# Maximum Observed Stage:                       65.21 Feet
# Maximum Observed Flow:                        6124 cfs
#
# Earliest Date & Time of Maximum Forecast:     04/23/2026 at 08:00 AM PDT
# Maximum Forecast Stage:                       64.33 Feet
# Maximum Forecast Flow:                        4507 cfs
#
# OBSERVED
#
# Date & Time  (Local)    Stage (Feet)     Flow (cfs)     Trend     Observed Status
# ---------------------------------------------------------------------------------
  04/18/2026 07 AM PDT           64.37           4578                        Normal
  04/18/2026 08 AM PDT           64.38           4596         +              Normal
  04/18/2026 09 AM PDT           64.38           4596         0              Normal
  04/18/2026 10 AM PDT           64.40           4632         +              Normal
  04/18/2026 11 AM PDT           64.39           4614         -              Normal
  04/18/2026 12 PM PDT           64.42           4668         +              Normal
  04/18/2026 01 PM PDT           64.39           4614         -              Normal
  04/18/2026 02 PM PDT           64.38           4596         -              Normal
  04/18/2026 03 PM PDT           64.40           4632         +              Normal
  04/18/2026 04 PM PDT           64.40           4632         0              Normal
  04/18/2026 05 PM PDT           64.36           4560         -              Normal
  04/18/2026 06 PM PDT           64.35           4543         -              Normal
  04/18/2026 07 PM PDT           64.38           4596         +              Normal
  04/18/2026 08 PM PDT           64.37           4578         -              Normal
  04/18/2026 09 PM PDT           64.33           4507         -              Normal
  04/18/2026 10 PM PDT           64.38           4596         +              Normal
  04/18/2026 11 PM PDT           64.39           4614         +              Normal
  04/19/2026 12 AM PDT           64.36           4560         -              Normal
  04/19/2026 01 AM PDT           64.38           4596         +              Normal
  04/19/2026 02 AM PDT           64.35           4543         -              Normal
  04/19/2026 03 AM PDT           64.29           4436         -              Normal
  04/19/2026 04 AM PDT           64.35           4543         +              Normal
  04/19/2026 05 AM PDT           64.36           4560         +              Normal
  04/19/2026 06 AM PDT           64.38           4596         +              Normal
  04/19/2026 07 AM PDT           64.34           4525         -              Normal
  04/19/2026 08 AM PDT           64.34           4525         0              Normal
  04/19/2026 09 AM PDT           64.34           4525         0              Normal
  04/19/2026 10 AM PDT           64.30           4454         -              Normal
  04/19/2026 11 AM PDT           64.33           4507         +              Normal
  04/19/2026 12 PM PDT           64.31           4471         -              Normal
  04/19/2026 01 PM PDT           64.34           4525         +              Normal
  04/19/2026 02 PM PDT           64.32           4489         -              Normal
  04/19/2026 03 PM PDT           64.37           4578         +              Normal
  04/19/2026 04 PM PDT           64.35           4543         -              Normal
  04/19/2026 05 PM PDT           64.38           4596         +              Normal
  04/19/2026 06 PM PDT           64.36           4560         -              Normal
  04/19/2026 07 PM PDT           64.33           4507         -              Normal
  04/19/2026 08 PM PDT           64.38           4596         +              Normal
  04/19/2026 09 PM PDT           64.39           4614         +              Normal
  04/19/2026 10 PM PDT           64.38           4596         -              Normal
  04/19/2026 11 PM PDT           64.36           4560         -              Normal
  04/20/2026 12 AM PDT           64.37           4578         +              Normal
  04/20/2026 01 AM PDT           64.35           4543         -              Normal
  04/20/2026 02 AM PDT           64.35           4543         0              Normal
  04/20/2026 03 AM PDT           64.38           4596         +              Normal
  04/20/2026 04 AM PDT           64.38           4596         0              Normal
  04/20/2026 05 AM PDT           64.37           4578         -              Normal
  04/20/2026 06 AM PDT           64.34           4525         -              Normal
  04/20/2026 07 AM PDT           64.35           4543         +              Normal
  04/20/2026 08 AM PDT           64.37           4578         +              Normal
  04/20/2026 09 AM PDT           64.35           4543         -              Normal
  04/20/2026 10 AM PDT           64.35           4543         0              Normal
  04/20/2026 11 AM PDT           64.33           4507         -              Normal
  04/20/2026 12 PM PDT           64.35           4543         +              Normal
  04/20/2026 01 PM PDT           64.36           4560         +              Normal
  04/20/2026 02 PM PDT           64.33           4507         -              Normal
  04/20/2026 03 PM PDT           64.32           4489         -              Normal
  04/20/2026 04 PM PDT           64.30           4454         -              Normal
  04/20/2026 05 PM PDT           64.33           4507         +              Normal
  04/20/2026 06 PM PDT           64.32           4489         -              Normal
  04/20/2026 07 PM PDT           64.36           4560         +              Normal
  04/20/2026 08 PM PDT           64.35           4543         -              Normal
  04/20/2026 09 PM PDT           64.36           4560         +              Normal
  04/20/2026 10 PM PDT           64.40           4632         +              Normal
  04/20/2026 11 PM PDT           64.43           4686         +              Normal
  04/21/2026 12 AM PDT           64.42           4668         -              Normal
  04/21/2026 01 AM PDT           64.49           4796         +              Normal
  04/21/2026 02 AM PDT           64.48           4778         -              Normal
  04/21/2026 03 AM PDT           64.50           4814         +              Normal
  04/21/2026 04 AM PDT           64.47           4759         -              Normal
  04/21/2026 05 AM PDT           64.54           4888         +              Normal
  04/21/2026 06 AM PDT           64.52           4851         -              Normal
  04/21/2026 07 AM PDT           64.53           4870         +              Normal
  04/21/2026 08 AM PDT           64.54           4888         +              Normal
  04/21/2026 09 AM PDT           64.59           4981         +              Normal
  04/21/2026 10 AM PDT           64.66           5108         +              Normal
  04/21/2026 11 AM PDT           64.71           5199         +              Normal
  04/21/2026 12 PM PDT           64.71           5199         0              Normal
  04/21/2026 01 PM PDT           64.79           5344         +              Normal
  04/21/2026 02 PM PDT           64.84           5436         +              Normal
  04/21/2026 03 PM PDT           64.84           5436         0              Normal
  04/21/2026 04 PM PDT           64.95           5638         +              Normal
  04/21/2026 05 PM PDT           64.97           5675         +              Normal
  04/21/2026 06 PM PDT           65.05           5824         +              Normal
  04/21/2026 07 PM PDT           65.01           5750         -              Normal
  04/21/2026 08 PM PDT           65.03           5787         +              Normal
  04/21/2026 09 PM PDT           65.12           5955         +              Normal
  04/21/2026 10 PM PDT           65.12           5955         0              Normal
  04/21/2026 11 PM PDT           65.17           6048         +              Normal
  04/22/2026 12 AM PDT           65.19           6086         +              Normal
  04/22/2026 01 AM PDT           65.17           6048         -              Normal
  04/22/2026 02 AM PDT           65.21           6124         +              Normal
  04/22/2026 03 AM PDT           65.18           6067         -              Normal
  04/22/2026 04 AM PDT           65.19           6086         +              Normal
  04/22/2026 05 AM PDT           65.19           6086         0              Normal
  04/22/2026 06 AM PDT           65.16           6030         -              Normal
  04/22/2026 07 AM PDT           65.19           6086         +              Normal
  04/22/2026 08 AM PDT           65.15           6011         -              Normal
  04/22/2026 09 AM PDT           65.20           6105         +              Normal
  04/22/2026 10 AM PDT           65.14           5992         -              Normal
  04/22/2026 11 AM PDT           65.08           5880         -              Normal
  04/22/2026 12 PM PDT           64.99           5712         -              Normal
  04/22/2026 01 PM PDT           65.08           5880         +              Normal
  04/22/2026 02 PM PDT           65.05           5824         -              Normal
  04/22/2026 03 PM PDT           65.10           5917         +              Normal
  04/22/2026 04 PM PDT           65.11           5936         +              Normal
  04/22/2026 05 PM PDT           65.19           6086         +              Normal
  04/22/2026 06 PM PDT           65.20           6105         +              Normal
  04/22/2026 07 PM PDT           65.20           6105         0              Normal
  04/22/2026 08 PM PDT           65.20           6105         0              Normal
  04/22/2026 09 PM PDT           65.09           5899         -              Normal
  04/22/2026 10 PM PDT           64.94           5620         -              Normal
  04/22/2026 11 PM PDT           64.84           5436         -              Normal
  04/23/2026 12 AM PDT           64.74           5253         -              Normal
  04/23/2026 01 AM PDT           64.67           5126         -              Normal
  04/23/2026 02 AM PDT           64.56           4925         -              Normal
  04/23/2026 03 AM PDT           64.50           4814         -              Normal
  04/23/2026 04 AM PDT           64.49           4796         -              Normal
  04/23/2026 05 AM PDT           64.43           4686         -              Normal
  04/23/2026 06 AM PDT           64.39           4614         -              Normal
  04/23/2026 07 AM PDT           64.36           4560         -              Normal
#
# FORECAST
#
# Date & Time  (Local)    Stage (Feet)     Flow (cfs)     Trend     Forecast Status
# ---------------------------------------------------------------------------------
  04/23/2026 08 AM PDT           64.33           4507                        Normal
  04/23/2026 09 AM PDT           64.29           4436         -              Normal
  04/23/2026 10 AM PDT           64.24           4349         -              Normal
  04/23/2026 11 AM PDT           64.18           4245         -              Normal
  04/23/2026 12 PM PDT           64.12           4142         -              Normal
  04/23/2026 01 PM PDT           64.05           4024         -              Normal
  04/23/2026 02 PM PDT           63.99           3924         -              Normal
  04/23/2026 03 PM PDT           63.93           3826         -              Normal
  04/23/2026 04 PM PDT           63.86           3712         -              Normal
  04/23/2026 05 PM PDT           63.78           3585         -              Normal
  04/23/2026 06 PM PDT           63.66           3399         -              Normal
  04/23/2026 07 PM PDT           63.57           3262         -              Normal
  04/23/2026 08 PM PDT           63.51           3173         -              Normal
  04/23/2026 09 PM PDT           63.45           3085         -              Normal
  04/23/2026 10 PM PDT           63.41           3027         -              Normal
  04/23/2026 11 PM PDT           63.37           2970         -              Normal
  04/24/2026 12 AM PDT           63.34           2927         -              Normal
  04/24/2026 01 AM PDT           63.31           2884         -              Normal
  04/24/2026 02 AM PDT           63.29           2856         -              Normal
  04/24/2026 03 AM PDT           63.26           2815         -              Normal
  04/24/2026 04 AM PDT           63.24           2787         -              Normal
  04/24/2026 05 AM PDT           63.22           2759         -              Normal
  04/24/2026 06 AM PDT           63.20           2732         -              Normal
  04/24/2026 07 AM PDT           63.18           2705         -              Normal
  04/24/2026 08 AM PDT           63.16           2678         -              Normal
  04/24/2026 09 AM PDT           63.14           2651         -              Normal
  04/24/2026 10 AM PDT           63.12           2624         -              Normal
  04/24/2026 11 AM PDT           63.11           2610         -              Normal
  04/24/2026 12 PM PDT           63.09           2584         -              Normal
  04/24/2026 01 PM PDT           63.08           2571         -              Normal
  04/24/2026 02 PM PDT           63.06           2544         -              Normal
  04/24/2026 03 PM PDT           63.05           2531         -              Normal
  04/24/2026 04 PM PDT           63.04           2518         -              Normal
  04/24/2026 05 PM PDT           63.03           2505         -              Normal
  04/24/2026 06 PM PDT           63.01           2479         -              Normal
  04/24/2026 07 PM PDT           62.99           2453         -              Normal
  04/24/2026 08 PM PDT           62.98           2440         -              Normal
  04/24/2026 09 PM PDT           62.98           2440         0              Normal
  04/24/2026 10 PM PDT           62.97           2427         -              Normal
  04/24/2026 11 PM PDT           62.96           2414         -              Normal
  04/25/2026 12 AM PDT           62.95           2402         -              Normal
  04/25/2026 01 AM PDT           62.95           2402         0              Normal
  04/25/2026 02 AM PDT           62.94           2389         -              Normal
  04/25/2026 03 AM PDT           62.93           2376         -              Normal
  04/25/2026 04 AM PDT           62.92           2363         -              Normal
  04/25/2026 05 AM PDT           62.91           2351         -              Normal
  04/25/2026 06 AM PDT           62.91           2351         0              Normal
  04/25/2026 07 AM PDT           62.90           2338         -              Normal
  04/25/2026 08 AM PDT           62.90           2338         0              Normal
  04/25/2026 09 AM PDT           62.89           2326         -              Normal
  04/25/2026 10 AM PDT           62.88           2313         -              Normal
  04/25/2026 11 AM PDT           62.88           2313         0              Normal
  04/25/2026 12 PM PDT           62.88           2313         0              Normal
  04/25/2026 01 PM PDT           62.87           2300         -              Normal
  04/25/2026 02 PM PDT           62.87           2300         0              Normal
  04/25/2026 03 PM PDT           62.87           2300         0              Normal
  04/25/2026 04 PM PDT           62.86           2288         -              Normal
  04/25/2026 05 PM PDT           62.86           2288         0              Normal
  04/25/2026 06 PM PDT           62.85           2276         -              Normal
  04/25/2026 07 PM PDT           62.84           2263         -              Normal
  04/25/2026 08 PM PDT           62.84           2263         0              Normal
  04/25/2026 09 PM PDT           62.83           2251         -              Normal
  04/25/2026 10 PM PDT           62.83           2251         0              Normal
  04/25/2026 11 PM PDT           62.82           2238         -              Normal
  04/26/2026 12 AM PDT           62.80           2214         -              Normal
  04/26/2026 01 AM PDT           62.79           2202         -              Normal
  04/26/2026 02 AM PDT           62.79           2202         0              Normal
  04/26/2026 03 AM PDT           62.78           2190         -              Normal
  04/26/2026 04 AM PDT           62.77           2177         -              Normal
  04/26/2026 05 AM PDT           62.77           2177         0              Normal
  04/26/2026 06 AM PDT           62.77           2177         0              Normal
  04/26/2026 07 AM PDT           62.75           2153         -              Normal
  04/26/2026 08 AM PDT           62.74           2141         -              Normal
  04/26/2026 09 AM PDT           62.75           2153         +              Normal
  04/26/2026 10 AM PDT           62.73           2129         -              Normal
  04/26/2026 11 AM PDT           62.73           2129         0              Normal
  04/26/2026 12 PM PDT           62.73           2129         0              Normal
  04/26/2026 01 PM PDT           62.73           2129         0              Normal
  04/26/2026 02 PM PDT           62.72           2117         -              Normal
  04/26/2026 03 PM PDT           62.71           2105         -              Normal
  04/26/2026 04 PM PDT           62.72           2117         +              Normal
  04/26/2026 05 PM PDT           62.71           2105         -              Normal
  04/26/2026 06 PM PDT           62.69           2081         -              Normal
  04/26/2026 07 PM PDT           62.70           2093         +              Normal
  04/26/2026 08 PM PDT           62.70           2093         0              Normal
  04/26/2026 09 PM PDT           62.69           2081         -              Normal
  04/26/2026 10 PM PDT           62.68           2070         -              Normal
  04/26/2026 11 PM PDT           62.68           2070         0              Normal
  04/27/2026 12 AM PDT           62.67           2058         -              Normal
  04/27/2026 01 AM PDT           62.66           2046         -              Normal
  04/27/2026 02 AM PDT           62.66           2046         0              Normal
  04/27/2026 03 AM PDT           62.66           2046         0              Normal
  04/27/2026 04 AM PDT           62.64           2023         -              Normal
  04/27/2026 05 AM PDT           62.63           2011         -              Normal
  04/27/2026 06 AM PDT           62.63           2011         0              Normal
  04/27/2026 07 AM PDT           62.61           1988         -              Normal
  04/27/2026 08 AM PDT           62.60           1976         -              Normal
  04/27/2026 09 AM PDT           62.60           1976         0              Normal
  04/27/2026 10 AM PDT           62.59           1965         -              Normal
  04/27/2026 11 AM PDT           62.57           1942         -              Normal
  04/27/2026 12 PM PDT           62.57           1942         0              Normal
  04/27/2026 01 PM PDT           62.56           1930         -              Normal
  04/27/2026 02 PM PDT           62.55           1919         -              Normal
  04/27/2026 03 PM PDT           62.55           1919         0              Normal
  04/27/2026 04 PM PDT           62.54           1908         -              Normal
  04/27/2026 05 PM PDT           62.52           1885         -              Normal
  04/27/2026 06 PM PDT           62.52           1885         0              Normal
  04/27/2026 07 PM PDT           62.52           1885         0              Normal
  04/27/2026 08 PM PDT           62.50           1863         -              Normal
  04/27/2026 09 PM PDT           62.48           1840         -              Normal
  04/27/2026 10 PM PDT           62.48           1840         0              Normal
  04/27/2026 11 PM PDT           62.47           1829         -              Normal
  04/28/2026 12 AM PDT           62.45           1807         -              Normal
  04/28/2026 01 AM PDT           62.45           1807         0              Normal
  04/28/2026 02 AM PDT           62.44           1796         -              Normal
  04/28/2026 03 AM PDT           62.43           1785         -              Normal
  04/28/2026 04 AM PDT           62.43           1785         0              Normal
  04/28/2026 05 AM PDT           62.41           1763         -              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.