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

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MERCED RIVER - STEVINSON (STVC1)
Latitude: 37.37º NLongitude: 120.93º WElevation: 82 FeetForecast Type: Official Location
Location: Merced County in CaliforniaBulletin Group: San JoaquinRiver Group: San Joaquin
Issuance Time: Jul 21 2026 at 7:23 AM PDTNext Issuance: Jul 22 2026 at 9:00 AM PDT
Action/Monitor: 68.0 FeetMinor Flood: 71.0 FeetModerate Flood: 73.8 FeetMajor Flood: 75.0 Feet


# Tabular Observed and Forecast Hydrograph Information
#
# Location: Merced River - Stevinson (STVC1)
#
# File Generation Time:  07/21/2026 at 07:23 AM PDT
# Data Interval:  1 Hour
#
# Most Recent Date & Time of Maximum Observed:  07/20/2026 at 06:00 AM PDT
# Maximum Observed Stage:                       57.09 Feet
# Maximum Observed Flow:                        172 cfs
#
# Earliest Date & Time of Maximum Forecast:     07/25/2026 at 01:00 PM PDT
# Maximum Forecast Stage:                       59.62 Feet
# Maximum Forecast Flow:                        707 cfs
#
# OBSERVED
#
# Date & Time  (Local)    Stage (Feet)     Flow (cfs)     Trend     Observed Status
# ---------------------------------------------------------------------------------
  07/16/2026 07 AM PDT           56.49            115                        Normal
  07/16/2026 08 AM PDT           56.52            118         +              Normal
  07/16/2026 09 AM PDT           56.52            118         0              Normal
  07/16/2026 10 AM PDT           56.50            116         -              Normal
  07/16/2026 11 AM PDT           56.49            115         -              Normal
  07/16/2026 12 PM PDT           56.47            113         -              Normal
  07/16/2026 01 PM PDT           56.40            106         -              Normal
  07/16/2026 02 PM PDT           56.37            104         -              Normal
  07/16/2026 03 PM PDT           56.37            104         0              Normal
  07/16/2026 04 PM PDT           56.36            103         -              Normal
  07/16/2026 05 PM PDT           56.33            100         -              Normal
  07/16/2026 06 PM PDT           56.35            102         +              Normal
  07/16/2026 07 PM PDT           56.41            107         +              Normal
  07/16/2026 08 PM PDT           56.37            104         -              Normal
  07/16/2026 09 PM PDT           56.37            104         0              Normal
  07/16/2026 10 PM PDT           56.37            104         0              Normal
  07/16/2026 11 PM PDT           56.37            104         0              Normal
  07/17/2026 12 AM PDT           56.37            104         0              Normal
  07/17/2026 01 AM PDT           56.39            105         +              Normal
  07/17/2026 02 AM PDT           56.40            106         +              Normal
  07/17/2026 03 AM PDT           56.56            121         +              Normal
  07/17/2026 04 AM PDT           56.61            126         +              Normal
  07/17/2026 05 AM PDT           56.60            125         -              Normal
  07/17/2026 06 AM PDT           56.60            125         0              Normal
  07/17/2026 07 AM PDT           56.59            124         -              Normal
  07/17/2026 08 AM PDT           56.58            123         -              Normal
  07/17/2026 09 AM PDT           56.54            120         -              Normal
  07/17/2026 10 AM PDT           56.52            118         -              Normal
  07/17/2026 11 AM PDT           56.50            116         -              Normal
  07/17/2026 12 PM PDT           56.50            116         0              Normal
  07/17/2026 01 PM PDT           56.50            116         0              Normal
  07/17/2026 02 PM PDT           56.49            115         -              Normal
  07/17/2026 03 PM PDT           56.47            113         -              Normal
  07/17/2026 04 PM PDT           56.46            112         -              Normal
  07/17/2026 05 PM PDT           56.45            111         -              Normal
  07/17/2026 06 PM PDT           56.44            110         -              Normal
  07/17/2026 07 PM PDT           56.42            108         -              Normal
  07/17/2026 08 PM PDT           56.41            107         -              Normal
  07/17/2026 09 PM PDT           56.40            106         -              Normal
  07/17/2026 10 PM PDT           56.37            104         -              Normal
  07/17/2026 11 PM PDT           56.37            104         0              Normal
  07/18/2026 12 AM PDT           56.37            104         0              Normal
  07/18/2026 01 AM PDT           56.37            104         0              Normal
  07/18/2026 02 AM PDT           56.40            106         +              Normal
  07/18/2026 03 AM PDT           56.42            108         +              Normal
  07/18/2026 04 AM PDT           56.44            110         +              Normal
  07/18/2026 05 AM PDT           56.44            110         0              Normal
  07/18/2026 06 AM PDT           56.46            112         +              Normal
  07/18/2026 07 AM PDT           56.45            111         -              Normal
  07/18/2026 08 AM PDT           56.46            112         +              Normal
  07/18/2026 09 AM PDT           56.45            111         -              Normal
  07/18/2026 10 AM PDT           56.46            112         +              Normal
  07/18/2026 11 AM PDT           56.45            111         -              Normal
  07/18/2026 12 PM PDT           56.45            111         0              Normal
  07/18/2026 01 PM PDT           56.45            111         0              Normal
  07/18/2026 02 PM PDT           56.45            111         0              Normal
  07/18/2026 03 PM PDT           56.47            113         +              Normal
  07/18/2026 04 PM PDT           56.49            115         +              Normal
  07/18/2026 05 PM PDT           56.50            116         +              Normal
  07/18/2026 06 PM PDT           56.52            118         +              Normal
  07/18/2026 07 PM PDT           56.53            119         +              Normal
  07/18/2026 08 PM PDT           56.54            120         +              Normal
  07/18/2026 09 PM PDT           56.56            121         +              Normal
  07/18/2026 10 PM PDT           56.58            123         +              Normal
  07/18/2026 11 PM PDT           56.60            125         +              Normal
  07/19/2026 12 AM PDT           56.62            127         +              Normal
  07/19/2026 01 AM PDT           56.64            129         +              Normal
  07/19/2026 02 AM PDT           56.66            131         +              Normal
  07/19/2026 03 AM PDT           56.70            135         +              Normal
  07/19/2026 04 AM PDT           56.69            134         -              Normal
  07/19/2026 05 AM PDT           56.72            137         +              Normal
  07/19/2026 06 AM PDT           56.76            140         +              Normal
  07/19/2026 07 AM PDT           56.80            144         +              Normal
  07/19/2026 08 AM PDT           56.80            144         0              Normal
  07/19/2026 09 AM PDT           56.80            144         0              Normal
  07/19/2026 10 AM PDT           56.80            144         0              Normal
  07/19/2026 11 AM PDT           56.82            146         +              Normal
  07/19/2026 12 PM PDT           56.84            148         +              Normal
  07/19/2026 01 PM PDT           56.85            149         +              Normal
  07/19/2026 02 PM PDT           56.86            150         +              Normal
  07/19/2026 03 PM PDT           56.86            150         0              Normal
  07/19/2026 04 PM PDT           56.87            151         +              Normal
  07/19/2026 05 PM PDT           56.90            154         +              Normal
  07/19/2026 06 PM PDT           56.93            157         +              Normal
  07/19/2026 07 PM PDT           56.95            159         +              Normal
  07/19/2026 08 PM PDT           56.96            160         +              Normal
  07/19/2026 09 PM PDT           57.00            163         +              Normal
  07/19/2026 10 PM PDT           57.02            165         +              Normal
  07/19/2026 11 PM PDT           57.02            165         0              Normal
  07/20/2026 12 AM PDT           57.02            165         0              Normal
  07/20/2026 01 AM PDT           57.05            168         +              Normal
  07/20/2026 02 AM PDT           57.07            170         +              Normal
  07/20/2026 03 AM PDT           57.07            170         0              Normal
  07/20/2026 04 AM PDT           57.08            171         +              Normal
  07/20/2026 05 AM PDT           57.09            172         +              Normal
  07/20/2026 06 AM PDT           57.09            172         0              Normal
  07/20/2026 07 AM PDT           57.08            171         -              Normal
  07/20/2026 08 AM PDT           57.04            167         -              Normal
  07/20/2026 09 AM PDT           57.02            165         -              Normal
  07/20/2026 10 AM PDT           57.02            165         0              Normal
  07/20/2026 11 AM PDT           57.03            166         +              Normal
  07/20/2026 12 PM PDT           57.05            168         +              Normal
  07/20/2026 01 PM PDT           57.07            170         +              Normal
  07/20/2026 02 PM PDT           57.08            171         +              Normal
  07/20/2026 03 PM PDT           57.07            170         -              Normal
  07/20/2026 04 PM PDT           57.04            167         -              Normal
  07/20/2026 05 PM PDT           57.02            165         -              Normal
  07/20/2026 06 PM PDT           57.00            163         -              Normal
  07/20/2026 07 PM PDT           56.98            162         -              Normal
  07/20/2026 08 PM PDT           56.95            159         -              Normal
  07/20/2026 09 PM PDT           56.93            157         -              Normal
  07/20/2026 10 PM PDT           56.90            154         -              Normal
  07/20/2026 11 PM PDT           56.87            151         -              Normal
  07/21/2026 12 AM PDT           56.86            150         -              Normal
  07/21/2026 01 AM PDT           56.84            148         -              Normal
  07/21/2026 02 AM PDT           56.83            147         -              Normal
  07/21/2026 03 AM PDT           56.82            146         -              Normal
  07/21/2026 04 AM PDT           56.81            145         -              Normal
  07/21/2026 05 AM PDT           56.80            144         -              Normal
  07/21/2026 06 AM PDT           56.80            144         0              Normal
  07/21/2026 07 AM PDT           56.78            142         -              Normal
#
# FORECAST
#
# Date & Time  (Local)    Stage (Feet)     Flow (cfs)     Trend     Forecast Status
# ---------------------------------------------------------------------------------
  07/21/2026 08 AM PDT           56.77            141                        Normal
  07/21/2026 09 AM PDT           56.75            139         -              Normal
  07/21/2026 10 AM PDT           56.73            138         -              Normal
  07/21/2026 11 AM PDT           56.72            137         -              Normal
  07/21/2026 12 PM PDT           56.71            136         -              Normal
  07/21/2026 01 PM PDT           56.70            135         -              Normal
  07/21/2026 02 PM PDT           56.70            135         0              Normal
  07/21/2026 03 PM PDT           56.69            134         -              Normal
  07/21/2026 04 PM PDT           56.68            133         -              Normal
  07/21/2026 05 PM PDT           56.67            132         -              Normal
  07/21/2026 06 PM PDT           56.67            132         0              Normal
  07/21/2026 07 PM PDT           56.66            131         -              Normal
  07/21/2026 08 PM PDT           56.66            131         0              Normal
  07/21/2026 09 PM PDT           56.65            130         -              Normal
  07/21/2026 10 PM PDT           56.65            130         0              Normal
  07/21/2026 11 PM PDT           56.65            130         0              Normal
  07/22/2026 12 AM PDT           56.65            130         0              Normal
  07/22/2026 01 AM PDT           56.64            129         -              Normal
  07/22/2026 02 AM PDT           56.64            129         0              Normal
  07/22/2026 03 AM PDT           56.64            129         0              Normal
  07/22/2026 04 AM PDT           56.64            129         0              Normal
  07/22/2026 05 AM PDT           56.64            129         0              Normal
  07/22/2026 06 AM PDT           56.64            129         0              Normal
  07/22/2026 07 AM PDT           56.65            130         +              Normal
  07/22/2026 08 AM PDT           56.67            132         +              Normal
  07/22/2026 09 AM PDT           56.72            137         +              Normal
  07/22/2026 10 AM PDT           56.81            145         +              Normal
  07/22/2026 11 AM PDT           56.92            156         +              Normal
  07/22/2026 12 PM PDT           57.05            168         +              Normal
  07/22/2026 01 PM PDT           57.18            182         +              Normal
  07/22/2026 02 PM PDT           57.28            198         +              Normal
  07/22/2026 03 PM PDT           57.38            214         +              Normal
  07/22/2026 04 PM PDT           57.48            231         +              Normal
  07/22/2026 05 PM PDT           57.58            249         +              Normal
  07/22/2026 06 PM PDT           57.68            267         +              Normal
  07/22/2026 07 PM PDT           57.77            284         +              Normal
  07/22/2026 08 PM PDT           57.87            303         +              Normal
  07/22/2026 09 PM PDT           57.96            321         +              Normal
  07/22/2026 10 PM PDT           58.06            341         +              Normal
  07/22/2026 11 PM PDT           58.16            361         +              Normal
  07/23/2026 12 AM PDT           58.25            381         +              Normal
  07/23/2026 01 AM PDT           58.34            400         +              Normal
  07/23/2026 02 AM PDT           58.43            420         +              Normal
  07/23/2026 03 AM PDT           58.50            436         +              Normal
  07/23/2026 04 AM PDT           58.58            454         +              Normal
  07/23/2026 05 AM PDT           58.65            470         +              Normal
  07/23/2026 06 AM PDT           58.72            486         +              Normal
  07/23/2026 07 AM PDT           58.78            500         +              Normal
  07/23/2026 08 AM PDT           58.84            514         +              Normal
  07/23/2026 09 AM PDT           58.89            526         +              Normal
  07/23/2026 10 AM PDT           58.95            540         +              Normal
  07/23/2026 11 AM PDT           59.00            552         +              Normal
  07/23/2026 12 PM PDT           59.04            561         +              Normal
  07/23/2026 01 PM PDT           59.09            573         +              Normal
  07/23/2026 02 PM PDT           59.12            581         +              Normal
  07/23/2026 03 PM PDT           59.16            590         +              Normal
  07/23/2026 04 PM PDT           59.20            600         +              Normal
  07/23/2026 05 PM PDT           59.23            608         +              Normal
  07/23/2026 06 PM PDT           59.26            615         +              Normal
  07/23/2026 07 PM PDT           59.28            620         +              Normal
  07/23/2026 08 PM PDT           59.31            628         +              Normal
  07/23/2026 09 PM PDT           59.33            633         +              Normal
  07/23/2026 10 PM PDT           59.35            638         +              Normal
  07/23/2026 11 PM PDT           59.38            645         +              Normal
  07/24/2026 12 AM PDT           59.40            650         +              Normal
  07/24/2026 01 AM PDT           59.41            653         +              Normal
  07/24/2026 02 AM PDT           59.43            658         +              Normal
  07/24/2026 03 AM PDT           59.44            661         +              Normal
  07/24/2026 04 AM PDT           59.46            666         +              Normal
  07/24/2026 05 AM PDT           59.47            668         +              Normal
  07/24/2026 06 AM PDT           59.48            671         +              Normal
  07/24/2026 07 AM PDT           59.49            674         +              Normal
  07/24/2026 08 AM PDT           59.50            676         +              Normal
  07/24/2026 09 AM PDT           59.51            679         +              Normal
  07/24/2026 10 AM PDT           59.52            681         +              Normal
  07/24/2026 11 AM PDT           59.53            684         +              Normal
  07/24/2026 12 PM PDT           59.54            686         +              Normal
  07/24/2026 01 PM PDT           59.55            689         +              Normal
  07/24/2026 02 PM PDT           59.55            689         0              Normal
  07/24/2026 03 PM PDT           59.56            692         +              Normal
  07/24/2026 04 PM PDT           59.56            692         0              Normal
  07/24/2026 05 PM PDT           59.57            694         +              Normal
  07/24/2026 06 PM PDT           59.57            694         0              Normal
  07/24/2026 07 PM PDT           59.58            697         +              Normal
  07/24/2026 08 PM PDT           59.58            697         0              Normal
  07/24/2026 09 PM PDT           59.58            697         0              Normal
  07/24/2026 10 PM PDT           59.59            700         +              Normal
  07/24/2026 11 PM PDT           59.59            700         0              Normal
  07/25/2026 12 AM PDT           59.59            700         0              Normal
  07/25/2026 01 AM PDT           59.60            702         +              Normal
  07/25/2026 02 AM PDT           59.60            702         0              Normal
  07/25/2026 03 AM PDT           59.60            702         0              Normal
  07/25/2026 04 AM PDT           59.60            702         0              Normal
  07/25/2026 05 AM PDT           59.60            702         0              Normal
  07/25/2026 06 AM PDT           59.61            705         +              Normal
  07/25/2026 07 AM PDT           59.61            705         0              Normal
  07/25/2026 08 AM PDT           59.61            705         0              Normal
  07/25/2026 09 AM PDT           59.61            705         0              Normal
  07/25/2026 10 AM PDT           59.61            705         0              Normal
  07/25/2026 11 AM PDT           59.61            705         0              Normal
  07/25/2026 12 PM PDT           59.61            705         0              Normal
  07/25/2026 01 PM PDT           59.62            707         +              Normal
  07/25/2026 02 PM PDT           59.62            707         0              Normal
  07/25/2026 03 PM PDT           59.62            707         0              Normal
  07/25/2026 04 PM PDT           59.62            707         0              Normal
  07/25/2026 05 PM PDT           59.62            707         0              Normal
  07/25/2026 06 PM PDT           59.62            707         0              Normal
  07/25/2026 07 PM PDT           59.62            707         0              Normal
  07/25/2026 08 PM PDT           59.62            707         0              Normal
  07/25/2026 09 PM PDT           59.62            707         0              Normal
  07/25/2026 10 PM PDT           59.62            707         0              Normal
  07/25/2026 11 PM PDT           59.62            707         0              Normal
  07/26/2026 12 AM PDT           59.62            707         0              Normal
  07/26/2026 01 AM PDT           59.62            707         0              Normal
  07/26/2026 02 AM PDT           59.62            707         0              Normal
  07/26/2026 03 AM PDT           59.62            707         0              Normal
  07/26/2026 04 AM PDT           59.62            707         0              Normal
  07/26/2026 05 AM PDT           59.62            707         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.