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: May 21 2026 at 7:59 AM PDTNext Issuance: May 22 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:  05/21/2026 at 07:59 AM PDT
# Data Interval:  1 Hour
#
# Most Recent Date & Time of Maximum Observed:  05/16/2026 at 03:00 PM PDT
# Maximum Observed Stage:                       62.19 Feet
# Maximum Observed Flow:                        1533 cfs
#
# Earliest Date & Time of Maximum Forecast:     05/21/2026 at 04:00 PM PDT
# Maximum Forecast Stage:                       61.82 Feet
# Maximum Forecast Flow:                        1168 cfs
#
# OBSERVED
#
# Date & Time  (Local)    Stage (Feet)     Flow (cfs)     Trend     Observed Status
# ---------------------------------------------------------------------------------
  05/16/2026 07 AM PDT           62.19           1533                        Normal
  05/16/2026 08 AM PDT           62.19           1533         0              Normal
  05/16/2026 09 AM PDT           62.17           1513         -              Normal
  05/16/2026 10 AM PDT           62.15           1493         -              Normal
  05/16/2026 11 AM PDT           62.17           1513         +              Normal
  05/16/2026 12 PM PDT           62.17           1513         0              Normal
  05/16/2026 01 PM PDT           62.16           1503         -              Normal
  05/16/2026 02 PM PDT           62.17           1513         +              Normal
  05/16/2026 03 PM PDT           62.19           1533         +              Normal
  05/16/2026 04 PM PDT           62.18           1523         -              Normal
  05/16/2026 05 PM PDT           62.17           1513         -              Normal
  05/16/2026 06 PM PDT           62.16           1503         -              Normal
  05/16/2026 07 PM PDT           62.17           1513         +              Normal
  05/16/2026 08 PM PDT           62.15           1493         -              Normal
  05/16/2026 09 PM PDT           62.16           1503         +              Normal
  05/16/2026 10 PM PDT           62.16           1503         0              Normal
  05/16/2026 11 PM PDT           62.16           1503         0              Normal
  05/17/2026 12 AM PDT           62.16           1503         0              Normal
  05/17/2026 01 AM PDT           62.16           1503         0              Normal
  05/17/2026 02 AM PDT           62.16           1503         0              Normal
  05/17/2026 03 AM PDT           62.16           1503         0              Normal
  05/17/2026 04 AM PDT           62.16           1503         0              Normal
  05/17/2026 05 AM PDT           62.16           1503         0              Normal
  05/17/2026 06 AM PDT           62.17           1513         +              Normal
  05/17/2026 07 AM PDT           62.17           1513         0              Normal
  05/17/2026 08 AM PDT           62.15           1493         -              Normal
  05/17/2026 09 AM PDT           62.18           1523         +              Normal
  05/17/2026 10 AM PDT           62.17           1513         -              Normal
  05/17/2026 11 AM PDT           62.16           1503         -              Normal
  05/17/2026 12 PM PDT           62.15           1493         -              Normal
  05/17/2026 01 PM PDT           62.14           1483         -              Normal
  05/17/2026 02 PM PDT           62.09           1434         -              Normal
  05/17/2026 03 PM PDT           62.06           1405         -              Normal
  05/17/2026 04 PM PDT           62.04           1385         -              Normal
  05/17/2026 05 PM PDT           62.02           1366         -              Normal
  05/17/2026 06 PM PDT           62.01           1357         -              Normal
  05/17/2026 07 PM PDT           62.02           1366         +              Normal
  05/17/2026 08 PM PDT           61.99           1337         -              Normal
  05/17/2026 09 PM PDT           61.99           1337         0              Normal
  05/17/2026 10 PM PDT           61.99           1337         0              Normal
  05/17/2026 11 PM PDT           61.99           1337         0              Normal
  05/18/2026 12 AM PDT           62.00           1347         +              Normal
  05/18/2026 01 AM PDT           62.00           1347         0              Normal
  05/18/2026 02 AM PDT           61.98           1327         -              Normal
  05/18/2026 03 AM PDT           61.99           1337         +              Normal
  05/18/2026 04 AM PDT           61.99           1337         0              Normal
  05/18/2026 05 AM PDT           61.97           1316         -              Normal
  05/18/2026 06 AM PDT           61.98           1327         +              Normal
  05/18/2026 07 AM PDT           61.97           1316         -              Normal
  05/18/2026 08 AM PDT           61.97           1316         0              Normal
  05/18/2026 09 AM PDT           61.98           1327         +              Normal
  05/18/2026 10 AM PDT           62.01           1357         +              Normal
  05/18/2026 11 AM PDT           62.02           1366         +              Normal
  05/18/2026 12 PM PDT           62.01           1357         -              Normal
  05/18/2026 01 PM PDT           61.99           1337         -              Normal
  05/18/2026 02 PM PDT           61.97           1316         -              Normal
  05/18/2026 03 PM PDT           61.99           1337         +              Normal
  05/18/2026 04 PM PDT           61.98           1327         -              Normal
  05/18/2026 05 PM PDT           61.98           1327         0              Normal
  05/18/2026 06 PM PDT           61.99           1337         +              Normal
  05/18/2026 07 PM PDT           61.98           1327         -              Normal
  05/18/2026 08 PM PDT           61.96           1306         -              Normal
  05/18/2026 09 PM PDT           61.96           1306         0              Normal
  05/18/2026 10 PM PDT           61.96           1306         0              Normal
  05/18/2026 11 PM PDT           61.96           1306         0              Normal
  05/19/2026 12 AM PDT           61.95           1296         -              Normal
  05/19/2026 01 AM PDT           61.97           1316         +              Normal
  05/19/2026 02 AM PDT           61.96           1306         -              Normal
  05/19/2026 03 AM PDT           61.95           1296         -              Normal
  05/19/2026 04 AM PDT           61.95           1296         0              Normal
  05/19/2026 05 AM PDT           61.95           1296         0              Normal
  05/19/2026 06 AM PDT           61.96           1306         +              Normal
  05/19/2026 07 AM PDT           61.95           1296         -              Normal
  05/19/2026 08 AM PDT           61.96           1306         +              Normal
  05/19/2026 09 AM PDT           61.94           1286         -              Normal
  05/19/2026 10 AM PDT           61.94           1286         0              Normal
  05/19/2026 11 AM PDT           61.93           1276         -              Normal
  05/19/2026 12 PM PDT           61.91           1256         -              Normal
  05/19/2026 01 PM PDT           61.90           1246         -              Normal
  05/19/2026 02 PM PDT           61.90           1246         0              Normal
  05/19/2026 03 PM PDT           61.90           1246         0              Normal
  05/19/2026 04 PM PDT           61.91           1256         +              Normal
  05/19/2026 05 PM PDT           61.89           1236         -              Normal
  05/19/2026 06 PM PDT           61.90           1246         +              Normal
  05/19/2026 07 PM PDT           61.89           1236         -              Normal
  05/19/2026 08 PM PDT           61.88           1226         -              Normal
  05/19/2026 09 PM PDT           61.87           1216         -              Normal
  05/19/2026 10 PM PDT           61.87           1216         0              Normal
  05/19/2026 11 PM PDT           61.86           1206         -              Normal
  05/20/2026 12 AM PDT           61.86           1206         0              Normal
  05/20/2026 01 AM PDT           61.87           1216         +              Normal
  05/20/2026 02 AM PDT           61.86           1206         -              Normal
  05/20/2026 03 AM PDT           61.86           1206         0              Normal
  05/20/2026 04 AM PDT           61.86           1206         0              Normal
  05/20/2026 05 AM PDT           61.87           1216         +              Normal
  05/20/2026 06 AM PDT           61.87           1216         0              Normal
  05/20/2026 07 AM PDT           61.86           1206         -              Normal
  05/20/2026 08 AM PDT           61.87           1216         +              Normal
  05/20/2026 09 AM PDT           61.88           1226         +              Normal
  05/20/2026 10 AM PDT           61.88           1226         0              Normal
  05/20/2026 11 AM PDT           61.86           1206         -              Normal
  05/20/2026 12 PM PDT           61.85           1197         -              Normal
  05/20/2026 01 PM PDT           61.84           1187         -              Normal
  05/20/2026 02 PM PDT           61.83           1177         -              Normal
  05/20/2026 03 PM PDT           61.84           1187         +              Normal
  05/20/2026 04 PM PDT           61.84           1187         0              Normal
  05/20/2026 05 PM PDT           61.83           1177         -              Normal
  05/20/2026 06 PM PDT           61.82           1168         -              Normal
  05/20/2026 07 PM PDT           61.83           1177         +              Normal
  05/20/2026 08 PM PDT           61.82           1168         -              Normal
  05/20/2026 09 PM PDT           61.81           1158         -              Normal
  05/20/2026 10 PM PDT           61.81           1158         0              Normal
  05/20/2026 11 PM PDT           61.81           1158         0              Normal
  05/21/2026 12 AM PDT           61.81           1158         0              Normal
  05/21/2026 01 AM PDT           61.82           1168         +              Normal
  05/21/2026 02 AM PDT           61.81           1158         -              Normal
  05/21/2026 03 AM PDT           61.82           1168         +              Normal
  05/21/2026 04 AM PDT           61.81           1158         -              Normal
  05/21/2026 05 AM PDT           61.82           1168         +              Normal
  05/21/2026 06 AM PDT           61.80           1148         -              Normal
  05/21/2026 07 AM PDT           61.78           1130         -              Normal
#
# FORECAST
#
# Date & Time  (Local)    Stage (Feet)     Flow (cfs)     Trend     Forecast Status
# ---------------------------------------------------------------------------------
  05/21/2026 08 AM PDT           61.78           1130                        Normal
  05/21/2026 09 AM PDT           61.79           1139         +              Normal
  05/21/2026 10 AM PDT           61.80           1148         +              Normal
  05/21/2026 11 AM PDT           61.80           1148         0              Normal
  05/21/2026 12 PM PDT           61.80           1148         0              Normal
  05/21/2026 01 PM PDT           61.81           1158         +              Normal
  05/21/2026 02 PM PDT           61.81           1158         0              Normal
  05/21/2026 03 PM PDT           61.81           1158         0              Normal
  05/21/2026 04 PM PDT           61.82           1168         +              Normal
  05/21/2026 05 PM PDT           61.82           1168         0              Normal
  05/21/2026 06 PM PDT           61.80           1148         -              Normal
  05/21/2026 07 PM PDT           61.78           1130         -              Normal
  05/21/2026 08 PM PDT           61.79           1139         +              Normal
  05/21/2026 09 PM PDT           61.80           1148         +              Normal
  05/21/2026 10 PM PDT           61.78           1130         -              Normal
  05/21/2026 11 PM PDT           61.79           1139         +              Normal
  05/22/2026 12 AM PDT           61.81           1158         +              Normal
  05/22/2026 01 AM PDT           61.81           1158         0              Normal
  05/22/2026 02 AM PDT           61.79           1139         -              Normal
  05/22/2026 03 AM PDT           61.78           1130         -              Normal
  05/22/2026 04 AM PDT           61.79           1139         +              Normal
  05/22/2026 05 AM PDT           61.79           1139         0              Normal
  05/22/2026 06 AM PDT           61.80           1148         +              Normal
  05/22/2026 07 AM PDT           61.80           1148         0              Normal
  05/22/2026 08 AM PDT           61.80           1148         0              Normal
  05/22/2026 09 AM PDT           61.80           1148         0              Normal
  05/22/2026 10 AM PDT           61.80           1148         0              Normal
  05/22/2026 11 AM PDT           61.82           1168         +              Normal
  05/22/2026 12 PM PDT           61.81           1158         -              Normal
  05/22/2026 01 PM PDT           61.80           1148         -              Normal
  05/22/2026 02 PM PDT           61.80           1148         0              Normal
  05/22/2026 03 PM PDT           61.80           1148         0              Normal
  05/22/2026 04 PM PDT           61.80           1148         0              Normal
  05/22/2026 05 PM PDT           61.82           1168         +              Normal
  05/22/2026 06 PM PDT           61.81           1158         -              Normal
  05/22/2026 07 PM PDT           61.79           1139         -              Normal
  05/22/2026 08 PM PDT           61.78           1130         -              Normal
  05/22/2026 09 PM PDT           61.77           1120         -              Normal
  05/22/2026 10 PM PDT           61.77           1120         0              Normal
  05/22/2026 11 PM PDT           61.78           1130         +              Normal
  05/23/2026 12 AM PDT           61.77           1120         -              Normal
  05/23/2026 01 AM PDT           61.78           1130         +              Normal
  05/23/2026 02 AM PDT           61.80           1148         +              Normal
  05/23/2026 03 AM PDT           61.80           1148         0              Normal
  05/23/2026 04 AM PDT           61.78           1130         -              Normal
  05/23/2026 05 AM PDT           61.77           1120         -              Normal
  05/23/2026 06 AM PDT           61.76           1111         -              Normal
  05/23/2026 07 AM PDT           61.77           1120         +              Normal
  05/23/2026 08 AM PDT           61.78           1130         +              Normal
  05/23/2026 09 AM PDT           61.78           1130         0              Normal
  05/23/2026 10 AM PDT           61.79           1139         +              Normal
  05/23/2026 11 AM PDT           61.79           1139         0              Normal
  05/23/2026 12 PM PDT           61.79           1139         0              Normal
  05/23/2026 01 PM PDT           61.79           1139         0              Normal
  05/23/2026 02 PM PDT           61.81           1158         +              Normal
  05/23/2026 03 PM PDT           61.80           1148         -              Normal
  05/23/2026 04 PM PDT           61.79           1139         -              Normal
  05/23/2026 05 PM PDT           61.77           1120         -              Normal
  05/23/2026 06 PM PDT           61.76           1111         -              Normal
  05/23/2026 07 PM PDT           61.77           1120         +              Normal
  05/23/2026 08 PM PDT           61.77           1120         0              Normal
  05/23/2026 09 PM PDT           61.78           1130         +              Normal
  05/23/2026 10 PM PDT           61.78           1130         0              Normal
  05/23/2026 11 PM PDT           61.78           1130         0              Normal
  05/24/2026 12 AM PDT           61.78           1130         0              Normal
  05/24/2026 01 AM PDT           61.78           1130         0              Normal
  05/24/2026 02 AM PDT           61.80           1148         +              Normal
  05/24/2026 03 AM PDT           61.80           1148         0              Normal
  05/24/2026 04 AM PDT           61.78           1130         -              Normal
  05/24/2026 05 AM PDT           61.77           1120         -              Normal
  05/24/2026 06 AM PDT           61.76           1111         -              Normal
  05/24/2026 07 AM PDT           61.77           1120         +              Normal
  05/24/2026 08 AM PDT           61.77           1120         0              Normal
  05/24/2026 09 AM PDT           61.77           1120         0              Normal
  05/24/2026 10 AM PDT           61.78           1130         +              Normal
  05/24/2026 11 AM PDT           61.78           1130         0              Normal
  05/24/2026 12 PM PDT           61.78           1130         0              Normal
  05/24/2026 01 PM PDT           61.78           1130         0              Normal
  05/24/2026 02 PM PDT           61.80           1148         +              Normal
  05/24/2026 03 PM PDT           61.80           1148         0              Normal
  05/24/2026 04 PM PDT           61.78           1130         -              Normal
  05/24/2026 05 PM PDT           61.77           1120         -              Normal
  05/24/2026 06 PM PDT           61.75           1101         -              Normal
  05/24/2026 07 PM PDT           61.76           1111         +              Normal
  05/24/2026 08 PM PDT           61.76           1111         0              Normal
  05/24/2026 09 PM PDT           61.77           1120         +              Normal
  05/24/2026 10 PM PDT           61.77           1120         0              Normal
  05/24/2026 11 PM PDT           61.77           1120         0              Normal
  05/25/2026 12 AM PDT           61.77           1120         0              Normal
  05/25/2026 01 AM PDT           61.77           1120         0              Normal
  05/25/2026 02 AM PDT           61.78           1130         +              Normal
  05/25/2026 03 AM PDT           61.78           1130         0              Normal
  05/25/2026 04 AM PDT           61.79           1139         +              Normal
  05/25/2026 05 AM PDT           61.79           1139         0              Normal
  05/25/2026 06 AM PDT           61.77           1120         -              Normal
  05/25/2026 07 AM PDT           61.76           1111         -              Normal
  05/25/2026 08 AM PDT           61.76           1111         0              Normal
  05/25/2026 09 AM PDT           61.77           1120         +              Normal
  05/25/2026 10 AM PDT           61.77           1120         0              Normal
  05/25/2026 11 AM PDT           61.77           1120         0              Normal
  05/25/2026 12 PM PDT           61.77           1120         0              Normal
  05/25/2026 01 PM PDT           61.79           1139         +              Normal
  05/25/2026 02 PM PDT           61.79           1139         0              Normal
  05/25/2026 03 PM PDT           61.77           1120         -              Normal
  05/25/2026 04 PM PDT           61.76           1111         -              Normal
  05/25/2026 05 PM PDT           61.75           1101         -              Normal
  05/25/2026 06 PM PDT           61.75           1101         0              Normal
  05/25/2026 07 PM PDT           61.76           1111         +              Normal
  05/25/2026 08 PM PDT           61.74           1092         -              Normal
  05/25/2026 09 PM PDT           61.75           1101         +              Normal
  05/25/2026 10 PM PDT           61.76           1111         +              Normal
  05/25/2026 11 PM PDT           61.76           1111         0              Normal
  05/26/2026 12 AM PDT           61.78           1130         +              Normal
  05/26/2026 01 AM PDT           61.78           1130         0              Normal
  05/26/2026 02 AM PDT           61.76           1111         -              Normal
  05/26/2026 03 AM PDT           61.75           1101         -              Normal
  05/26/2026 04 AM PDT           61.74           1092         -              Normal
  05/26/2026 05 AM PDT           61.75           1101         +              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.