MERCED RIVER - YOSEMITE NP AT HAPPY ISLES (HPIC1)
Latitude: 37.73º NLongitude: 119.56º WElevation: 4017 Feet
Location: Mariposa County in CaliforniaBulletin Group: San JoaquinRiver Group: San Joaquin
Issuance Time: Jul 11 2025 at 7:38 AM PDTNext Issuance: Jul 12 2025 at 9:00 AM PDT
Action/Monitor: N/A Minor Flood: 7.5 FeetModerate Flood: 10.0 FeetMajor Flood: 13.27 Feet

# Tabular Observed and Forecast Hydrograph Information
#
# Location: Merced River - Yosemite NP at Happy Isles (HPIC1)
#
# File Generation Time:  07/11/2025 at 07:38 AM PDT
# Data Interval:  1 Hour
#
# Most Recent Date & Time of Maximum Observed:  07/06/2025 at 10:00 AM PDT
# Maximum Observed Stage:                       2.30 Feet
# Maximum Observed Flow:                        165 cfs
#
# Earliest Date & Time of Maximum Forecast:     07/11/2025 at 08:00 AM PDT
# Maximum Forecast Stage:                       1.98 Feet
# Maximum Forecast Flow:                        96 cfs
#
# OBSERVED
#
# Date & Time  (Local)    Stage (Feet)     Flow (cfs)     Trend     Observed Status
# ---------------------------------------------------------------------------------
  07/06/2025 07 AM PDT            2.30            165                        Normal
  07/06/2025 08 AM PDT            2.30            165         0              Normal
  07/06/2025 09 AM PDT            2.30            165         0              Normal
  07/06/2025 10 AM PDT            2.30            165         0              Normal
  07/06/2025 11 AM PDT            2.29            162         -              Normal
  07/06/2025 12 PM PDT            2.29            162         0              Normal
  07/06/2025 01 PM PDT            2.28            160         -              Normal
  07/06/2025 02 PM PDT            2.28            160         0              Normal
  07/06/2025 03 PM PDT            2.28            160         0              Normal
  07/06/2025 04 PM PDT            2.26            154         -              Normal
  07/06/2025 05 PM PDT            2.26            154         0              Normal
  07/06/2025 06 PM PDT            2.27            157         +              Normal
  07/06/2025 07 PM PDT            2.26            154         -              Normal
  07/06/2025 08 PM PDT            2.25            152         -              Normal
  07/06/2025 09 PM PDT            2.24            149         -              Normal
  07/06/2025 10 PM PDT            2.24            149         0              Normal
  07/06/2025 11 PM PDT            2.23            147         -              Normal
  07/07/2025 12 AM PDT            2.22            144         -              Normal
  07/07/2025 01 AM PDT            2.23            147         +              Normal
  07/07/2025 02 AM PDT            2.21            141         -              Normal
  07/07/2025 03 AM PDT            2.22            144         +              Normal
  07/07/2025 04 AM PDT            2.21            141         -              Normal
  07/07/2025 05 AM PDT            2.20            139         -              Normal
  07/07/2025 06 AM PDT            2.20            139         0              Normal
  07/07/2025 07 AM PDT            2.20            139         0              Normal
  07/07/2025 08 AM PDT            2.20            139         0              Normal
  07/07/2025 09 AM PDT            2.20            139         0              Normal
  07/07/2025 10 AM PDT            2.20            139         0              Normal
  07/07/2025 11 AM PDT            2.20            139         0              Normal
  07/07/2025 12 PM PDT            2.20            139         0              Normal
  07/07/2025 01 PM PDT            2.19            136         -              Normal
  07/07/2025 02 PM PDT            2.19            136         0              Normal
  07/07/2025 03 PM PDT            2.18            134         -              Normal
  07/07/2025 04 PM PDT            2.19            136         +              Normal
  07/07/2025 05 PM PDT            2.18            134         -              Normal
  07/07/2025 06 PM PDT            2.18            134         0              Normal
  07/07/2025 07 PM PDT            2.17            131         -              Normal
  07/07/2025 08 PM PDT            2.18            134         +              Normal
  07/07/2025 09 PM PDT            2.17            131         -              Normal
  07/07/2025 10 PM PDT            2.17            131         0              Normal
  07/07/2025 11 PM PDT            2.17            131         0              Normal
  07/08/2025 12 AM PDT            2.16            129         -              Normal
  07/08/2025 01 AM PDT            2.16            129         0              Normal
  07/08/2025 02 AM PDT            2.15            127         -              Normal
  07/08/2025 03 AM PDT            2.15            127         0              Normal
  07/08/2025 04 AM PDT            2.14            125         -              Normal
  07/08/2025 05 AM PDT            2.15            127         +              Normal
  07/08/2025 06 AM PDT            2.14            125         -              Normal
  07/08/2025 07 AM PDT            2.15            127         +              Normal
  07/08/2025 08 AM PDT            2.14            125         -              Normal
  07/08/2025 09 AM PDT            2.14            125         0              Normal
  07/08/2025 10 AM PDT            2.14            125         0              Normal
  07/08/2025 11 AM PDT            2.13            123         -              Normal
  07/08/2025 12 PM PDT            2.13            123         0              Normal
  07/08/2025 01 PM PDT            2.13            123         0              Normal
  07/08/2025 02 PM PDT            2.13            123         0              Normal
  07/08/2025 03 PM PDT            2.12            121         -              Normal
  07/08/2025 04 PM PDT            2.12            121         0              Normal
  07/08/2025 05 PM PDT            2.12            121         0              Normal
  07/08/2025 06 PM PDT            2.11            119         -              Normal
  07/08/2025 07 PM PDT            2.11            119         0              Normal
  07/08/2025 08 PM PDT            2.11            119         0              Normal
  07/08/2025 09 PM PDT            2.10            117         -              Normal
  07/08/2025 10 PM PDT            2.10            117         0              Normal
  07/08/2025 11 PM PDT            2.10            117         0              Normal
  07/09/2025 12 AM PDT            2.09            115         -              Normal
  07/09/2025 01 AM PDT            2.09            115         0              Normal
  07/09/2025 02 AM PDT            2.08            113         -              Normal
  07/09/2025 03 AM PDT            2.07            111         -              Normal
  07/09/2025 04 AM PDT            2.07            111         0              Normal
  07/09/2025 05 AM PDT            2.08            113         +              Normal
  07/09/2025 06 AM PDT            2.07            111         -              Normal
  07/09/2025 07 AM PDT            2.07            111         0              Normal
  07/09/2025 08 AM PDT            2.07            111         0              Normal
  07/09/2025 09 AM PDT            2.07            111         0              Normal
  07/09/2025 10 AM PDT            2.07            111         0              Normal
  07/09/2025 11 AM PDT            2.06            109         -              Normal
  07/09/2025 12 PM PDT            2.06            109         0              Normal
  07/09/2025 01 PM PDT            2.06            109         0              Normal
  07/09/2025 02 PM PDT            2.06            109         0              Normal
  07/09/2025 03 PM PDT            2.06            109         0              Normal
  07/09/2025 04 PM PDT            2.06            109         0              Normal
  07/09/2025 05 PM PDT            2.05            107         -              Normal
  07/09/2025 06 PM PDT            2.05            107         0              Normal
  07/09/2025 07 PM PDT            2.05            107         0              Normal
  07/09/2025 08 PM PDT            2.05            107         0              Normal
  07/09/2025 09 PM PDT            2.05            107         0              Normal
  07/09/2025 10 PM PDT            2.05            107         0              Normal
  07/09/2025 11 PM PDT            2.05            107         0              Normal
  07/10/2025 12 AM PDT            2.04            105         -              Normal
  07/10/2025 01 AM PDT            2.04            105         0              Normal
  07/10/2025 02 AM PDT            2.04            105         0              Normal
  07/10/2025 03 AM PDT            2.03            104         -              Normal
  07/10/2025 04 AM PDT            2.03            104         0              Normal
  07/10/2025 05 AM PDT            2.03            104         0              Normal
  07/10/2025 06 AM PDT            2.03            104         0              Normal
  07/10/2025 07 AM PDT            2.02            102         -              Normal
  07/10/2025 08 AM PDT            2.03            104         +              Normal
  07/10/2025 09 AM PDT            2.02            102         -              Normal
  07/10/2025 10 AM PDT            2.02            102         0              Normal
  07/10/2025 11 AM PDT            2.02            102         0              Normal
  07/10/2025 12 PM PDT            2.02            102         0              Normal
  07/10/2025 01 PM PDT            2.02            102         0              Normal
  07/10/2025 02 PM PDT            2.02            102         0              Normal
  07/10/2025 03 PM PDT            2.02            102         0              Normal
  07/10/2025 04 PM PDT            2.02            102         0              Normal
  07/10/2025 05 PM PDT            2.02            102         0              Normal
  07/10/2025 06 PM PDT            2.00             99         -              Normal
  07/10/2025 07 PM PDT            2.01            100         +              Normal
  07/10/2025 08 PM PDT            2.01            100         0              Normal
  07/10/2025 09 PM PDT            2.01            100         0              Normal
  07/10/2025 10 PM PDT            2.00             99         -              Normal
  07/10/2025 11 PM PDT            2.00             99         0              Normal
  07/11/2025 12 AM PDT            2.00             99         0              Normal
  07/11/2025 01 AM PDT            2.00             99         0              Normal
  07/11/2025 02 AM PDT            1.99             97         -              Normal
  07/11/2025 03 AM PDT            1.99             97         0              Normal
  07/11/2025 04 AM PDT            2.00             99         +              Normal
  07/11/2025 05 AM PDT            1.99             97         -              Normal
  07/11/2025 06 AM PDT            1.99             97         0              Normal
  07/11/2025 07 AM PDT            1.98             96         -              Normal
#
# FORECAST
#
# Date & Time  (Local)    Stage (Feet)     Flow (cfs)     Trend     Forecast Status
# ---------------------------------------------------------------------------------
  07/11/2025 08 AM PDT            1.98             96                        Normal
  07/11/2025 09 AM PDT            1.98             96         0              Normal
  07/11/2025 10 AM PDT            1.97             94         -              Normal
  07/11/2025 11 AM PDT            1.97             94         0              Normal
  07/11/2025 12 PM PDT            1.97             94         0              Normal
  07/11/2025 01 PM PDT            1.97             94         0              Normal
  07/11/2025 02 PM PDT            1.96             93         -              Normal
  07/11/2025 03 PM PDT            1.96             93         0              Normal
  07/11/2025 04 PM PDT            1.96             93         0              Normal
  07/11/2025 05 PM PDT            1.95             91         -              Normal
  07/11/2025 06 PM PDT            1.95             91         0              Normal
  07/11/2025 07 PM PDT            1.95             91         0              Normal
  07/11/2025 08 PM PDT            1.95             91         0              Normal
  07/11/2025 09 PM PDT            1.96             93         +              Normal
  07/11/2025 10 PM PDT            1.96             93         0              Normal
  07/11/2025 11 PM PDT            1.96             93         0              Normal
  07/12/2025 12 AM PDT            1.96             93         0              Normal
  07/12/2025 01 AM PDT            1.96             93         0              Normal
  07/12/2025 02 AM PDT            1.96             93         0              Normal
  07/12/2025 03 AM PDT            1.95             91         -              Normal
  07/12/2025 04 AM PDT            1.95             91         0              Normal
  07/12/2025 05 AM PDT            1.95             91         0              Normal
  07/12/2025 06 AM PDT            1.95             91         0              Normal
  07/12/2025 07 AM PDT            1.95             91         0              Normal
  07/12/2025 08 AM PDT            1.94             90         -              Normal
  07/12/2025 09 AM PDT            1.94             90         0              Normal
  07/12/2025 10 AM PDT            1.93             89         -              Normal
  07/12/2025 11 AM PDT            1.93             89         0              Normal
  07/12/2025 12 PM PDT            1.93             89         0              Normal
  07/12/2025 01 PM PDT            1.92             87         -              Normal
  07/12/2025 02 PM PDT            1.92             87         0              Normal
  07/12/2025 03 PM PDT            1.92             87         0              Normal
  07/12/2025 04 PM PDT            1.91             86         -              Normal
  07/12/2025 05 PM PDT            1.91             86         0              Normal
  07/12/2025 06 PM PDT            1.91             86         0              Normal
  07/12/2025 07 PM PDT            1.92             87         +              Normal
  07/12/2025 08 PM PDT            1.92             87         0              Normal
  07/12/2025 09 PM PDT            1.92             87         0              Normal
  07/12/2025 10 PM PDT            1.92             87         0              Normal
  07/12/2025 11 PM PDT            1.92             87         0              Normal
  07/13/2025 12 AM PDT            1.92             87         0              Normal
  07/13/2025 01 AM PDT            1.92             87         0              Normal
  07/13/2025 02 AM PDT            1.92             87         0              Normal
  07/13/2025 03 AM PDT            1.92             87         0              Normal
  07/13/2025 04 AM PDT            1.91             86         -              Normal
  07/13/2025 05 AM PDT            1.91             86         0              Normal
  07/13/2025 06 AM PDT            1.91             86         0              Normal
  07/13/2025 07 AM PDT            1.91             86         0              Normal
  07/13/2025 08 AM PDT            1.90             85         -              Normal
  07/13/2025 09 AM PDT            1.90             85         0              Normal
  07/13/2025 10 AM PDT            1.90             85         0              Normal
  07/13/2025 11 AM PDT            1.89             83         -              Normal
  07/13/2025 12 PM PDT            1.89             83         0              Normal
  07/13/2025 01 PM PDT            1.89             83         0              Normal
  07/13/2025 02 PM PDT            1.88             82         -              Normal
  07/13/2025 03 PM PDT            1.88             82         0              Normal
  07/13/2025 04 PM PDT            1.88             82         0              Normal
  07/13/2025 05 PM PDT            1.88             82         0              Normal
  07/13/2025 06 PM PDT            1.88             82         0              Normal
  07/13/2025 07 PM PDT            1.88             82         0              Normal
  07/13/2025 08 PM PDT            1.88             82         0              Normal
  07/13/2025 09 PM PDT            1.88             82         0              Normal
  07/13/2025 10 PM PDT            1.88             82         0              Normal
  07/13/2025 11 PM PDT            1.88             82         0              Normal
  07/14/2025 12 AM PDT            1.88             82         0              Normal
  07/14/2025 01 AM PDT            1.88             82         0              Normal
  07/14/2025 02 AM PDT            1.88             82         0              Normal
  07/14/2025 03 AM PDT            1.88             82         0              Normal
  07/14/2025 04 AM PDT            1.88             82         0              Normal
  07/14/2025 05 AM PDT            1.88             82         0              Normal
  07/14/2025 06 AM PDT            1.88             82         0              Normal
  07/14/2025 07 AM PDT            1.88             82         0              Normal
  07/14/2025 08 AM PDT            1.87             81         -              Normal
  07/14/2025 09 AM PDT            1.87             81         0              Normal
  07/14/2025 10 AM PDT            1.87             81         0              Normal
  07/14/2025 11 AM PDT            1.86             80         -              Normal
  07/14/2025 12 PM PDT            1.86             80         0              Normal
  07/14/2025 01 PM PDT            1.86             80         0              Normal
  07/14/2025 02 PM PDT            1.85             78         -              Normal
  07/14/2025 03 PM PDT            1.85             78         0              Normal
  07/14/2025 04 PM PDT            1.85             78         0              Normal
  07/14/2025 05 PM PDT            1.85             78         0              Normal
  07/14/2025 06 PM PDT            1.85             78         0              Normal
  07/14/2025 07 PM PDT            1.85             78         0              Normal
  07/14/2025 08 PM PDT            1.85             78         0              Normal
  07/14/2025 09 PM PDT            1.85             78         0              Normal
  07/14/2025 10 PM PDT            1.85             78         0              Normal
  07/14/2025 11 PM PDT            1.85             78         0              Normal
  07/15/2025 12 AM PDT            1.85             78         0              Normal
  07/15/2025 01 AM PDT            1.85             78         0              Normal
  07/15/2025 02 AM PDT            1.85             78         0              Normal
  07/15/2025 03 AM PDT            1.85             78         0              Normal
  07/15/2025 04 AM PDT            1.85             78         0              Normal
  07/15/2025 05 AM PDT            1.85             78         0              Normal
  07/15/2025 06 AM PDT            1.85             78         0              Normal
  07/15/2025 07 AM PDT            1.85             78         0              Normal
  07/15/2025 08 AM PDT            1.84             77         -              Normal
  07/15/2025 09 AM PDT            1.84             77         0              Normal
  07/15/2025 10 AM PDT            1.84             77         0              Normal
  07/15/2025 11 AM PDT            1.83             76         -              Normal
  07/15/2025 12 PM PDT            1.83             76         0              Normal
  07/15/2025 01 PM PDT            1.83             76         0              Normal
  07/15/2025 02 PM PDT            1.82             75         -              Normal
  07/15/2025 03 PM PDT            1.82             75         0              Normal
  07/15/2025 04 PM PDT            1.82             75         0              Normal
  07/15/2025 05 PM PDT            1.82             75         0              Normal
  07/15/2025 06 PM PDT            1.82             75         0              Normal
  07/15/2025 07 PM PDT            1.82             75         0              Normal
  07/15/2025 08 PM PDT            1.82             75         0              Normal
  07/15/2025 09 PM PDT            1.82             75         0              Normal
  07/15/2025 10 PM PDT            1.83             76         +              Normal
  07/15/2025 11 PM PDT            1.83             76         0              Normal
  07/16/2025 12 AM PDT            1.83             76         0              Normal
  07/16/2025 01 AM PDT            1.83             76         0              Normal
  07/16/2025 02 AM PDT            1.83             76         0              Normal
  07/16/2025 03 AM PDT            1.83             76         0              Normal
  07/16/2025 04 AM PDT            1.83             76         0              Normal
  07/16/2025 05 AM PDT            1.82             75         -              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.