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: May 15 2026 at 7:53 AM PDTNext Issuance: May 16 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:  05/15/2026 at 07:55 AM PDT
# Data Interval:  1 Hour
#
# Most Recent Date & Time of Maximum Observed:  05/11/2026 at 06:00 AM PDT
# Maximum Observed Stage:                       57.26 Feet
# Maximum Observed Flow:                        198 cfs
#
# Earliest Date & Time of Maximum Forecast:     05/16/2026 at 09:00 PM PDT
# Maximum Forecast Stage:                       56.74 Feet
# Maximum Forecast Flow:                        140 cfs
#
# OBSERVED
#
# Date & Time  (Local)    Stage (Feet)     Flow (cfs)     Trend     Observed Status
# ---------------------------------------------------------------------------------
  05/10/2026 07 AM PDT           57.15            180                        Normal
  05/10/2026 08 AM PDT           57.15            180         0              Normal
  05/10/2026 09 AM PDT           57.15            180         0              Normal
  05/10/2026 10 AM PDT           57.16            182         +              Normal
  05/10/2026 11 AM PDT           57.15            180         -              Normal
  05/10/2026 12 PM PDT           57.16            182         +              Normal
  05/10/2026 01 PM PDT           57.15            180         -              Normal
  05/10/2026 02 PM PDT           57.14            179         -              Normal
  05/10/2026 03 PM PDT           57.13            178         -              Normal
  05/10/2026 04 PM PDT           57.12            177         -              Normal
  05/10/2026 05 PM PDT           57.11            176         -              Normal
  05/10/2026 06 PM PDT           57.10            175         -              Normal
  05/10/2026 07 PM PDT           57.10            175         0              Normal
  05/10/2026 08 PM PDT           57.10            175         0              Normal
  05/10/2026 09 PM PDT           57.10            175         0              Normal
  05/10/2026 10 PM PDT           57.10            175         0              Normal
  05/10/2026 11 PM PDT           57.11            176         +              Normal
  05/11/2026 12 AM PDT           57.12            177         +              Normal
  05/11/2026 01 AM PDT           57.12            177         0              Normal
  05/11/2026 02 AM PDT           57.13            178         +              Normal
  05/11/2026 03 AM PDT           57.15            180         +              Normal
  05/11/2026 04 AM PDT           57.18            185         +              Normal
  05/11/2026 05 AM PDT           57.23            193         +              Normal
  05/11/2026 06 AM PDT           57.26            198         +              Normal
  05/11/2026 07 AM PDT           57.22            191         -              Normal
  05/11/2026 08 AM PDT           57.17            183         -              Normal
  05/11/2026 09 AM PDT           57.15            180         -              Normal
  05/11/2026 10 AM PDT           57.14            179         -              Normal
  05/11/2026 11 AM PDT           57.13            178         -              Normal
  05/11/2026 12 PM PDT           57.13            178         0              Normal
  05/11/2026 01 PM PDT           57.10            175         -              Normal
  05/11/2026 02 PM PDT           57.07            172         -              Normal
  05/11/2026 03 PM PDT           57.05            170         -              Normal
  05/11/2026 04 PM PDT           57.03            168         -              Normal
  05/11/2026 05 PM PDT           57.01            166         -              Normal
  05/11/2026 06 PM PDT           56.99            164         -              Normal
  05/11/2026 07 PM PDT           56.98            163         -              Normal
  05/11/2026 08 PM PDT           57.00            165         +              Normal
  05/11/2026 09 PM PDT           57.00            165         0              Normal
  05/11/2026 10 PM PDT           56.98            163         -              Normal
  05/11/2026 11 PM PDT           56.98            163         0              Normal
  05/12/2026 12 AM PDT           56.96            162         -              Normal
  05/12/2026 01 AM PDT           56.96            162         0              Normal
  05/12/2026 02 AM PDT           57.00            165         +              Normal
  05/12/2026 03 AM PDT           56.98            163         -              Normal
  05/12/2026 04 AM PDT           56.90            156         -              Normal
  05/12/2026 05 AM PDT           56.87            153         -              Normal
  05/12/2026 06 AM PDT           56.84            150         -              Normal
  05/12/2026 07 AM PDT           56.83            149         -              Normal
  05/12/2026 08 AM PDT           56.82            148         -              Normal
  05/12/2026 09 AM PDT           56.82            148         0              Normal
  05/12/2026 10 AM PDT           56.83            149         +              Normal
  05/12/2026 11 AM PDT           56.83            149         0              Normal
  05/12/2026 12 PM PDT           56.82            148         -              Normal
  05/12/2026 01 PM PDT           56.82            148         0              Normal
  05/12/2026 02 PM PDT           56.81            147         -              Normal
  05/12/2026 03 PM PDT           56.80            146         -              Normal
  05/12/2026 04 PM PDT           56.79            145         -              Normal
  05/12/2026 05 PM PDT           56.78            144         -              Normal
  05/12/2026 06 PM PDT           56.77            143         -              Normal
  05/12/2026 07 PM PDT           56.76            142         -              Normal
  05/12/2026 08 PM PDT           56.75            141         -              Normal
  05/12/2026 09 PM PDT           56.74            140         -              Normal
  05/12/2026 10 PM PDT           56.74            140         0              Normal
  05/12/2026 11 PM PDT           56.77            143         +              Normal
  05/13/2026 12 AM PDT           56.79            145         +              Normal
  05/13/2026 01 AM PDT           56.86            152         +              Normal
  05/13/2026 02 AM PDT           56.89            155         +              Normal
  05/13/2026 03 AM PDT           56.90            156         +              Normal
  05/13/2026 04 AM PDT           56.88            154         -              Normal
  05/13/2026 05 AM PDT           56.85            151         -              Normal
  05/13/2026 06 AM PDT           56.84            150         -              Normal
  05/13/2026 07 AM PDT           56.84            150         0              Normal
  05/13/2026 08 AM PDT           56.82            148         -              Normal
  05/13/2026 09 AM PDT           56.80            146         -              Normal
  05/13/2026 10 AM PDT           56.81            147         +              Normal
  05/13/2026 11 AM PDT           56.81            147         0              Normal
  05/13/2026 12 PM PDT           56.80            146         -              Normal
  05/13/2026 01 PM PDT           56.79            145         -              Normal
  05/13/2026 02 PM PDT           56.78            144         -              Normal
  05/13/2026 03 PM PDT           56.78            144         0              Normal
  05/13/2026 04 PM PDT           56.77            143         -              Normal
  05/13/2026 05 PM PDT           56.77            143         0              Normal
  05/13/2026 06 PM PDT           56.77            143         0              Normal
  05/13/2026 07 PM PDT           56.76            142         -              Normal
  05/13/2026 08 PM PDT           56.76            142         0              Normal
  05/13/2026 09 PM PDT           56.75            141         -              Normal
  05/13/2026 10 PM PDT           56.74            140         -              Normal
  05/13/2026 11 PM PDT           56.76            142         +              Normal
  05/14/2026 12 AM PDT           56.77            143         +              Normal
  05/14/2026 01 AM PDT           56.75            141         -              Normal
  05/14/2026 02 AM PDT           56.74            140         -              Normal
  05/14/2026 03 AM PDT           56.73            139         -              Normal
  05/14/2026 04 AM PDT           56.73            139         0              Normal
  05/14/2026 05 AM PDT           56.73            139         0              Normal
  05/14/2026 06 AM PDT           56.75            141         +              Normal
  05/14/2026 07 AM PDT           56.74            140         -              Normal
  05/14/2026 08 AM PDT           56.70            137         -              Normal
  05/14/2026 09 AM PDT           56.67            134         -              Normal
  05/14/2026 10 AM PDT           56.64            131         -              Normal
  05/14/2026 11 AM PDT           56.61            128         -              Normal
  05/14/2026 12 PM PDT           56.59            126         -              Normal
  05/14/2026 01 PM PDT           56.58            125         -              Normal
  05/14/2026 02 PM PDT           56.56            123         -              Normal
  05/14/2026 03 PM PDT           56.55            122         -              Normal
  05/14/2026 04 PM PDT           56.54            121         -              Normal
  05/14/2026 05 PM PDT           56.54            121         0              Normal
  05/14/2026 06 PM PDT           56.58            125         +              Normal
  05/14/2026 07 PM PDT           56.60            127         +              Normal
  05/14/2026 08 PM PDT           56.61            128         +              Normal
  05/14/2026 09 PM PDT           56.61            128         0              Normal
  05/14/2026 10 PM PDT           56.61            128         0              Normal
  05/14/2026 11 PM PDT           56.61            128         0              Normal
  05/15/2026 12 AM PDT           56.60            127         -              Normal
  05/15/2026 01 AM PDT           56.60            127         0              Normal
  05/15/2026 02 AM PDT           56.60            127         0              Normal
  05/15/2026 03 AM PDT           56.59            126         -              Normal
  05/15/2026 04 AM PDT           56.58            125         -              Normal
  05/15/2026 05 AM PDT           56.58            125         0              Normal
  05/15/2026 06 AM PDT           56.57            124         -              Normal
  05/15/2026 07 AM PDT           56.57            124         0              Normal
#
# FORECAST
#
# Date & Time  (Local)    Stage (Feet)     Flow (cfs)     Trend     Forecast Status
# ---------------------------------------------------------------------------------
  05/15/2026 08 AM PDT           56.57            124                        Normal
  05/15/2026 09 AM PDT           56.57            124         0              Normal
  05/15/2026 10 AM PDT           56.57            124         0              Normal
  05/15/2026 11 AM PDT           56.58            125         +              Normal
  05/15/2026 12 PM PDT           56.58            125         0              Normal
  05/15/2026 01 PM PDT           56.59            126         +              Normal
  05/15/2026 02 PM PDT           56.60            127         +              Normal
  05/15/2026 03 PM PDT           56.61            128         +              Normal
  05/15/2026 04 PM PDT           56.61            128         0              Normal
  05/15/2026 05 PM PDT           56.62            129         +              Normal
  05/15/2026 06 PM PDT           56.62            129         0              Normal
  05/15/2026 07 PM PDT           56.63            130         +              Normal
  05/15/2026 08 PM PDT           56.64            131         +              Normal
  05/15/2026 09 PM PDT           56.64            131         0              Normal
  05/15/2026 10 PM PDT           56.65            132         +              Normal
  05/15/2026 11 PM PDT           56.66            133         +              Normal
  05/16/2026 12 AM PDT           56.66            133         0              Normal
  05/16/2026 01 AM PDT           56.67            134         +              Normal
  05/16/2026 02 AM PDT           56.67            134         0              Normal
  05/16/2026 03 AM PDT           56.68            135         +              Normal
  05/16/2026 04 AM PDT           56.68            135         0              Normal
  05/16/2026 05 AM PDT           56.69            136         +              Normal
  05/16/2026 06 AM PDT           56.69            136         0              Normal
  05/16/2026 07 AM PDT           56.70            137         +              Normal
  05/16/2026 08 AM PDT           56.70            137         0              Normal
  05/16/2026 09 AM PDT           56.70            137         0              Normal
  05/16/2026 10 AM PDT           56.70            137         0              Normal
  05/16/2026 11 AM PDT           56.71            138         +              Normal
  05/16/2026 12 PM PDT           56.71            138         0              Normal
  05/16/2026 01 PM PDT           56.71            138         0              Normal
  05/16/2026 02 PM PDT           56.72            139         +              Normal
  05/16/2026 03 PM PDT           56.72            139         0              Normal
  05/16/2026 04 PM PDT           56.72            139         0              Normal
  05/16/2026 05 PM PDT           56.73            139         +              Normal
  05/16/2026 06 PM PDT           56.73            139         0              Normal
  05/16/2026 07 PM PDT           56.73            139         0              Normal
  05/16/2026 08 PM PDT           56.73            139         0              Normal
  05/16/2026 09 PM PDT           56.74            140         +              Normal
  05/16/2026 10 PM PDT           56.74            140         0              Normal
  05/16/2026 11 PM PDT           56.74            140         0              Normal
  05/17/2026 12 AM PDT           56.74            140         0              Normal
  05/17/2026 01 AM PDT           56.74            140         0              Normal
  05/17/2026 02 AM PDT           56.74            140         0              Normal
  05/17/2026 03 AM PDT           56.74            140         0              Normal
  05/17/2026 04 AM PDT           56.74            140         0              Normal
  05/17/2026 05 AM PDT           56.74            140         0              Normal
  05/17/2026 06 AM PDT           56.74            140         0              Normal
  05/17/2026 07 AM PDT           56.74            140         0              Normal
  05/17/2026 08 AM PDT           56.74            140         0              Normal
  05/17/2026 09 AM PDT           56.74            140         0              Normal
  05/17/2026 10 AM PDT           56.74            140         0              Normal
  05/17/2026 11 AM PDT           56.74            140         0              Normal
  05/17/2026 12 PM PDT           56.74            140         0              Normal
  05/17/2026 01 PM PDT           56.74            140         0              Normal
  05/17/2026 02 PM PDT           56.74            140         0              Normal
  05/17/2026 03 PM PDT           56.74            140         0              Normal
  05/17/2026 04 PM PDT           56.74            140         0              Normal
  05/17/2026 05 PM PDT           56.74            140         0              Normal
  05/17/2026 06 PM PDT           56.74            140         0              Normal
  05/17/2026 07 PM PDT           56.74            140         0              Normal
  05/17/2026 08 PM PDT           56.74            140         0              Normal
  05/17/2026 09 PM PDT           56.74            140         0              Normal
  05/17/2026 10 PM PDT           56.74            140         0              Normal
  05/17/2026 11 PM PDT           56.74            140         0              Normal
  05/18/2026 12 AM PDT           56.74            140         0              Normal
  05/18/2026 01 AM PDT           56.74            140         0              Normal
  05/18/2026 02 AM PDT           56.74            140         0              Normal
  05/18/2026 03 AM PDT           56.74            140         0              Normal
  05/18/2026 04 AM PDT           56.74            140         0              Normal
  05/18/2026 05 AM PDT           56.74            140         0              Normal
  05/18/2026 06 AM PDT           56.74            140         0              Normal
  05/18/2026 07 AM PDT           56.74            140         0              Normal
  05/18/2026 08 AM PDT           56.74            140         0              Normal
  05/18/2026 09 AM PDT           56.74            140         0              Normal
  05/18/2026 10 AM PDT           56.74            140         0              Normal
  05/18/2026 11 AM PDT           56.74            140         0              Normal
  05/18/2026 12 PM PDT           56.74            140         0              Normal
  05/18/2026 01 PM PDT           56.74            140         0              Normal
  05/18/2026 02 PM PDT           56.74            140         0              Normal
  05/18/2026 03 PM PDT           56.74            140         0              Normal
  05/18/2026 04 PM PDT           56.74            140         0              Normal
  05/18/2026 05 PM PDT           56.74            140         0              Normal
  05/18/2026 06 PM PDT           56.74            140         0              Normal
  05/18/2026 07 PM PDT           56.74            140         0              Normal
  05/18/2026 08 PM PDT           56.74            140         0              Normal
  05/18/2026 09 PM PDT           56.74            140         0              Normal
  05/18/2026 10 PM PDT           56.74            140         0              Normal
  05/18/2026 11 PM PDT           56.74            140         0              Normal
  05/19/2026 12 AM PDT           56.74            140         0              Normal
  05/19/2026 01 AM PDT           56.74            140         0              Normal
  05/19/2026 02 AM PDT           56.74            140         0              Normal
  05/19/2026 03 AM PDT           56.74            140         0              Normal
  05/19/2026 04 AM PDT           56.74            140         0              Normal
  05/19/2026 05 AM PDT           56.74            140         0              Normal
  05/19/2026 06 AM PDT           56.74            140         0              Normal
  05/19/2026 07 AM PDT           56.74            140         0              Normal
  05/19/2026 08 AM PDT           56.74            140         0              Normal
  05/19/2026 09 AM PDT           56.73            139         -              Normal
  05/19/2026 10 AM PDT           56.73            139         0              Normal
  05/19/2026 11 AM PDT           56.73            139         0              Normal
  05/19/2026 12 PM PDT           56.73            139         0              Normal
  05/19/2026 01 PM PDT           56.73            139         0              Normal
  05/19/2026 02 PM PDT           56.73            139         0              Normal
  05/19/2026 03 PM PDT           56.73            139         0              Normal
  05/19/2026 04 PM PDT           56.73            139         0              Normal
  05/19/2026 05 PM PDT           56.73            139         0              Normal
  05/19/2026 06 PM PDT           56.73            139         0              Normal
  05/19/2026 07 PM PDT           56.73            139         0              Normal
  05/19/2026 08 PM PDT           56.73            139         0              Normal
  05/19/2026 09 PM PDT           56.73            139         0              Normal
  05/19/2026 10 PM PDT           56.73            139         0              Normal
  05/19/2026 11 PM PDT           56.73            139         0              Normal
  05/20/2026 12 AM PDT           56.73            139         0              Normal
  05/20/2026 01 AM PDT           56.73            139         0              Normal
  05/20/2026 02 AM PDT           56.73            139         0              Normal
  05/20/2026 03 AM PDT           56.73            139         0              Normal
  05/20/2026 04 AM PDT           56.73            139         0              Normal
  05/20/2026 05 AM PDT           56.73            139         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.