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 Feet
Location: Merced County in CaliforniaBulletin Group: San JoaquinRiver Group: San Joaquin
Issuance Time: Dec 25 2025 at 2:10 PM PSTNext Issuance: Dec 26 2025 at 9:00 AM PST
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:  12/25/2025 at 02:10 PM PST
# Data Interval:  1 Hour
#
# Most Recent Date & Time of Maximum Observed:  12/25/2025 at 01:00 PM PST
# Maximum Observed Stage:                       57.01 Feet
# Maximum Observed Flow:                        146 cfs
#
# Earliest Date & Time of Maximum Forecast:     12/27/2025 at 11:00 AM PST
# Maximum Forecast Stage:                       57.19 Feet
# Maximum Forecast Flow:                        163 cfs
#
# OBSERVED
#
# Date & Time  (Local)    Stage (Feet)     Flow (cfs)     Trend     Observed Status
# ---------------------------------------------------------------------------------
  12/20/2025 02 PM PST           56.80            126                        Normal
  12/20/2025 03 PM PST           56.82            128         +              Normal
  12/20/2025 04 PM PST           56.80            126         -              Normal
  12/20/2025 05 PM PST           56.80            126         0              Normal
  12/20/2025 06 PM PST           56.80            126         0              Normal
  12/20/2025 07 PM PST           56.79            125         -              Normal
  12/20/2025 08 PM PST           56.80            126         +              Normal
  12/20/2025 09 PM PST           56.80            126         0              Normal
  12/20/2025 10 PM PST           56.80            126         0              Normal
  12/20/2025 11 PM PST           56.81            127         +              Normal
  12/21/2025 12 AM PST           56.80            126         -              Normal
  12/21/2025 01 AM PST           56.80            126         0              Normal
  12/21/2025 02 AM PST           56.80            126         0              Normal
  12/21/2025 03 AM PST           56.80            126         0              Normal
  12/21/2025 04 AM PST           56.80            126         0              Normal
  12/21/2025 05 AM PST           56.80            126         0              Normal
  12/21/2025 06 AM PST           56.80            126         0              Normal
  12/21/2025 07 AM PST           56.80            126         0              Normal
  12/21/2025 08 AM PST           56.80            126         0              Normal
  12/21/2025 09 AM PST           56.80            126         0              Normal
  12/21/2025 10 AM PST           56.79            125         -              Normal
  12/21/2025 11 AM PST           56.80            126         +              Normal
  12/21/2025 12 PM PST           56.79            125         -              Normal
  12/21/2025 01 PM PST           56.80            126         +              Normal
  12/21/2025 02 PM PST           56.79            125         -              Normal
  12/21/2025 03 PM PST           56.80            126         +              Normal
  12/21/2025 04 PM PST           56.80            126         0              Normal
  12/21/2025 05 PM PST           56.80            126         0              Normal
  12/21/2025 06 PM PST           56.79            125         -              Normal
  12/21/2025 07 PM PST           56.80            126         +              Normal
  12/21/2025 08 PM PST           56.80            126         0              Normal
  12/21/2025 09 PM PST           56.80            126         0              Normal
  12/21/2025 10 PM PST           56.80            126         0              Normal
  12/21/2025 11 PM PST           56.81            127         +              Normal
  12/22/2025 12 AM PST           56.80            126         -              Normal
  12/22/2025 01 AM PST           56.80            126         0              Normal
  12/22/2025 02 AM PST           56.80            126         0              Normal
  12/22/2025 03 AM PST           56.81            127         +              Normal
  12/22/2025 04 AM PST           56.80            126         -              Normal
  12/22/2025 05 AM PST           56.79            125         -              Normal
  12/22/2025 06 AM PST           56.80            126         +              Normal
  12/22/2025 07 AM PST           56.80            126         0              Normal
  12/22/2025 08 AM PST           56.80            126         0              Normal
  12/22/2025 09 AM PST           56.80            126         0              Normal
  12/22/2025 10 AM PST           56.79            125         -              Normal
  12/22/2025 11 AM PST           56.79            125         0              Normal
  12/22/2025 12 PM PST           56.80            126         +              Normal
  12/22/2025 01 PM PST           56.79            125         -              Normal
  12/22/2025 02 PM PST           56.81            127         +              Normal
  12/22/2025 03 PM PST           56.82            128         +              Normal
  12/22/2025 04 PM PST           56.82            128         0              Normal
  12/22/2025 05 PM PST           56.84            130         +              Normal
  12/22/2025 06 PM PST           56.86            132         +              Normal
  12/22/2025 07 PM PST           56.86            132         0              Normal
  12/22/2025 08 PM PST           56.86            132         0              Normal
  12/22/2025 09 PM PST           56.86            132         0              Normal
  12/22/2025 10 PM PST           56.86            132         0              Normal
  12/22/2025 11 PM PST           56.85            131         -              Normal
  12/23/2025 12 AM PST           56.84            130         -              Normal
  12/23/2025 01 AM PST           56.84            130         0              Normal
  12/23/2025 02 AM PST           56.84            130         0              Normal
  12/23/2025 03 AM PST           56.83            129         -              Normal
  12/23/2025 04 AM PST           56.82            128         -              Normal
  12/23/2025 05 AM PST           56.82            128         0              Normal
  12/23/2025 06 AM PST           56.82            128         0              Normal
  12/23/2025 07 AM PST           56.81            127         -              Normal
  12/23/2025 08 AM PST           56.81            127         0              Normal
  12/23/2025 09 AM PST           56.81            127         0              Normal
  12/23/2025 10 AM PST           56.81            127         0              Normal
  12/23/2025 11 AM PST           56.81            127         0              Normal
  12/23/2025 12 PM PST           56.81            127         0              Normal
  12/23/2025 01 PM PST           56.81            127         0              Normal
  12/23/2025 02 PM PST           56.81            127         0              Normal
  12/23/2025 03 PM PST           56.80            126         -              Normal
  12/23/2025 04 PM PST           56.81            127         +              Normal
  12/23/2025 05 PM PST           56.80            126         -              Normal
  12/23/2025 06 PM PST           56.80            126         0              Normal
  12/23/2025 07 PM PST           56.80            126         0              Normal
  12/23/2025 08 PM PST           56.80            126         0              Normal
  12/23/2025 09 PM PST           56.80            126         0              Normal
  12/23/2025 10 PM PST           56.80            126         0              Normal
  12/23/2025 11 PM PST           56.79            125         -              Normal
  12/24/2025 12 AM PST           56.79            125         0              Normal
  12/24/2025 01 AM PST           56.81            127         +              Normal
  12/24/2025 02 AM PST           56.83            129         +              Normal
  12/24/2025 03 AM PST           56.82            128         -              Normal
  12/24/2025 04 AM PST           56.82            128         0              Normal
  12/24/2025 05 AM PST           56.82            128         0              Normal
  12/24/2025 06 AM PST           56.82            128         0              Normal
  12/24/2025 07 AM PST           56.82            128         0              Normal
  12/24/2025 08 AM PST           56.83            129         +              Normal
  12/24/2025 09 AM PST           56.85            131         +              Normal
  12/24/2025 10 AM PST           56.87            133         +              Normal
  12/24/2025 11 AM PST           56.88            134         +              Normal
  12/24/2025 12 PM PST           56.88            134         0              Normal
  12/24/2025 01 PM PST           56.90            136         +              Normal
  12/24/2025 02 PM PST           56.91            137         +              Normal
  12/24/2025 03 PM PST           56.94            139         +              Normal
  12/24/2025 04 PM PST           56.94            139         0              Normal
  12/24/2025 05 PM PST           56.94            139         0              Normal
  12/24/2025 06 PM PST           56.94            139         0              Normal
  12/24/2025 07 PM PST           56.94            139         0              Normal
  12/24/2025 08 PM PST           56.94            139         0              Normal
  12/24/2025 09 PM PST           56.94            139         0              Normal
  12/24/2025 10 PM PST           56.94            139         0              Normal
  12/24/2025 11 PM PST           56.94            139         0              Normal
  12/25/2025 12 AM PST           56.94            139         0              Normal
  12/25/2025 01 AM PST           56.94            139         0              Normal
  12/25/2025 02 AM PST           56.94            139         0              Normal
  12/25/2025 03 AM PST           56.93            139         -              Normal
  12/25/2025 04 AM PST           56.94            139         +              Normal
  12/25/2025 05 AM PST           56.96            141         +              Normal
  12/25/2025 06 AM PST           56.97            142         +              Normal
  12/25/2025 07 AM PST           56.98            143         +              Normal
  12/25/2025 08 AM PST           56.97            142         -              Normal
  12/25/2025 09 AM PST           56.98            143         +              Normal
  12/25/2025 10 AM PST           56.99            144         +              Normal
  12/25/2025 11 AM PST           57.00            145         +              Normal
  12/25/2025 12 PM PST           57.01            146         +              Normal
  12/25/2025 01 PM PST           57.01            146         0              Normal
#
# FORECAST
#
# Date & Time  (Local)    Stage (Feet)     Flow (cfs)     Trend     Forecast Status
# ---------------------------------------------------------------------------------
  12/25/2025 02 PM PST           57.01            146                        Normal
  12/25/2025 03 PM PST           57.02            147         +              Normal
  12/25/2025 04 PM PST           57.02            147         0              Normal
  12/25/2025 05 PM PST           57.03            148         +              Normal
  12/25/2025 06 PM PST           57.03            148         0              Normal
  12/25/2025 07 PM PST           57.04            149         +              Normal
  12/25/2025 08 PM PST           57.04            149         0              Normal
  12/25/2025 09 PM PST           57.05            150         +              Normal
  12/25/2025 10 PM PST           57.05            150         0              Normal
  12/25/2025 11 PM PST           57.06            151         +              Normal
  12/26/2025 12 AM PST           57.06            151         0              Normal
  12/26/2025 01 AM PST           57.07            152         +              Normal
  12/26/2025 02 AM PST           57.07            152         0              Normal
  12/26/2025 03 AM PST           57.07            152         0              Normal
  12/26/2025 04 AM PST           57.08            153         +              Normal
  12/26/2025 05 AM PST           57.08            153         0              Normal
  12/26/2025 06 AM PST           57.08            153         0              Normal
  12/26/2025 07 AM PST           57.09            154         +              Normal
  12/26/2025 08 AM PST           57.09            154         0              Normal
  12/26/2025 09 AM PST           57.09            154         0              Normal
  12/26/2025 10 AM PST           57.10            155         +              Normal
  12/26/2025 11 AM PST           57.10            155         0              Normal
  12/26/2025 12 PM PST           57.10            155         0              Normal
  12/26/2025 01 PM PST           57.11            156         +              Normal
  12/26/2025 02 PM PST           57.11            156         0              Normal
  12/26/2025 03 PM PST           57.12            157         +              Normal
  12/26/2025 04 PM PST           57.12            157         0              Normal
  12/26/2025 05 PM PST           57.12            157         0              Normal
  12/26/2025 06 PM PST           57.13            158         +              Normal
  12/26/2025 07 PM PST           57.13            158         0              Normal
  12/26/2025 08 PM PST           57.14            159         +              Normal
  12/26/2025 09 PM PST           57.14            159         0              Normal
  12/26/2025 10 PM PST           57.15            160         +              Normal
  12/26/2025 11 PM PST           57.15            160         0              Normal
  12/27/2025 12 AM PST           57.15            160         0              Normal
  12/27/2025 01 AM PST           57.16            161         +              Normal
  12/27/2025 02 AM PST           57.16            161         0              Normal
  12/27/2025 03 AM PST           57.16            161         0              Normal
  12/27/2025 04 AM PST           57.16            161         0              Normal
  12/27/2025 05 AM PST           57.17            162         +              Normal
  12/27/2025 06 AM PST           57.17            162         0              Normal
  12/27/2025 07 AM PST           57.17            162         0              Normal
  12/27/2025 08 AM PST           57.18            163         +              Normal
  12/27/2025 09 AM PST           57.18            163         0              Normal
  12/27/2025 10 AM PST           57.18            163         0              Normal
  12/27/2025 11 AM PST           57.19            163         +              Normal
  12/27/2025 12 PM PST           57.19            163         0              Normal
  12/27/2025 01 PM PST           57.19            163         0              Normal
  12/27/2025 02 PM PST           57.19            163         0              Normal
  12/27/2025 03 PM PST           57.19            163         0              Normal
  12/27/2025 04 PM PST           57.19            163         0              Normal
  12/27/2025 05 PM PST           57.19            163         0              Normal
  12/27/2025 06 PM PST           57.19            163         0              Normal
  12/27/2025 07 PM PST           57.19            163         0              Normal
  12/27/2025 08 PM PST           57.18            163         -              Normal
  12/27/2025 09 PM PST           57.18            163         0              Normal
  12/27/2025 10 PM PST           57.18            163         0              Normal
  12/27/2025 11 PM PST           57.17            162         -              Normal
  12/28/2025 12 AM PST           57.17            162         0              Normal
  12/28/2025 01 AM PST           57.17            162         0              Normal
  12/28/2025 02 AM PST           57.17            162         0              Normal
  12/28/2025 03 AM PST           57.16            161         -              Normal
  12/28/2025 04 AM PST           57.16            161         0              Normal
  12/28/2025 05 AM PST           57.16            161         0              Normal
  12/28/2025 06 AM PST           57.16            161         0              Normal
  12/28/2025 07 AM PST           57.15            160         -              Normal
  12/28/2025 08 AM PST           57.15            160         0              Normal
  12/28/2025 09 AM PST           57.15            160         0              Normal
  12/28/2025 10 AM PST           57.14            159         -              Normal
  12/28/2025 11 AM PST           57.14            159         0              Normal
  12/28/2025 12 PM PST           57.14            159         0              Normal
  12/28/2025 01 PM PST           57.13            158         -              Normal
  12/28/2025 02 PM PST           57.13            158         0              Normal
  12/28/2025 03 PM PST           57.13            158         0              Normal
  12/28/2025 04 PM PST           57.12            157         -              Normal
  12/28/2025 05 PM PST           57.12            157         0              Normal
  12/28/2025 06 PM PST           57.12            157         0              Normal
  12/28/2025 07 PM PST           57.11            156         -              Normal
  12/28/2025 08 PM PST           57.11            156         0              Normal
  12/28/2025 09 PM PST           57.10            155         -              Normal
  12/28/2025 10 PM PST           57.10            155         0              Normal
  12/28/2025 11 PM PST           57.09            154         -              Normal
  12/29/2025 12 AM PST           57.09            154         0              Normal
  12/29/2025 01 AM PST           57.09            154         0              Normal
  12/29/2025 02 AM PST           57.08            153         -              Normal
  12/29/2025 03 AM PST           57.08            153         0              Normal
  12/29/2025 04 AM PST           57.07            152         -              Normal
  12/29/2025 05 AM PST           57.07            152         0              Normal
  12/29/2025 06 AM PST           57.06            151         -              Normal
  12/29/2025 07 AM PST           57.06            151         0              Normal
  12/29/2025 08 AM PST           57.05            150         -              Normal
  12/29/2025 09 AM PST           57.05            150         0              Normal
  12/29/2025 10 AM PST           57.05            150         0              Normal
  12/29/2025 11 AM PST           57.04            149         -              Normal
  12/29/2025 12 PM PST           57.04            149         0              Normal
  12/29/2025 01 PM PST           57.03            148         -              Normal
  12/29/2025 02 PM PST           57.03            148         0              Normal
  12/29/2025 03 PM PST           57.02            147         -              Normal
  12/29/2025 04 PM PST           57.02            147         0              Normal
  12/29/2025 05 PM PST           57.02            147         0              Normal
  12/29/2025 06 PM PST           57.01            146         -              Normal
  12/29/2025 07 PM PST           57.01            146         0              Normal
  12/29/2025 08 PM PST           57.00            145         -              Normal
  12/29/2025 09 PM PST           57.00            145         0              Normal
  12/29/2025 10 PM PST           56.99            144         -              Normal
  12/29/2025 11 PM PST           56.99            144         0              Normal
  12/30/2025 12 AM PST           56.98            143         -              Normal
  12/30/2025 01 AM PST           56.98            143         0              Normal
  12/30/2025 02 AM PST           56.97            142         -              Normal
  12/30/2025 03 AM PST           56.97            142         0              Normal
  12/30/2025 04 AM PST           56.96            141         -              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.