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 - YOSEMITE NP AT POHONO BRIDGE (POHC1)
Latitude: 37.72º NLongitude: 119.67º WElevation: 3862 Feet
Location: Mariposa County in CaliforniaBulletin Group: San JoaquinRiver Group: San Joaquin
Issuance Time: May 01 2025 at 9:28 AM PDTNext Issuance: May 02 2025 at 9:00 AM PDT
Action/Monitor: N/A Minor Flood: 10.0 FeetModerate Flood: 12.5 FeetMajor Flood: 20.0 Feet


# Tabular Observed and Forecast Hydrograph Information
#
# Location: Merced River - Yosemite NP at Pohono Bridge (POHC1)
#
# File Generation Time:  05/01/2025 at 09:28 AM PDT
# Data Interval:  1 Hour
#
# Most Recent Date & Time of Maximum Observed:  05/01/2025 at 03:00 AM PDT
# Maximum Observed Stage:                       5.80 Feet
# Maximum Observed Flow:                        2055 cfs
#
# Earliest Date & Time of Maximum Forecast:     05/04/2025 at 02:00 AM PDT
# Maximum Forecast Stage:                       6.94 Feet
# Maximum Forecast Flow:                        3090 cfs
#
# OBSERVED
#
# Date & Time  (Local)    Stage (Feet)     Flow (cfs)     Trend     Observed Status
# ---------------------------------------------------------------------------------
  04/26/2025 09 AM PDT            5.41           1740                        Normal
  04/26/2025 10 AM PDT            5.40           1732         -              Normal
  04/26/2025 11 AM PDT            5.36           1702         -              Normal
  04/26/2025 12 PM PDT            5.36           1702         0              Normal
  04/26/2025 01 PM PDT            5.35           1694         -              Normal
  04/26/2025 02 PM PDT            5.32           1672         -              Normal
  04/26/2025 03 PM PDT            5.31           1665         -              Normal
  04/26/2025 04 PM PDT            5.29           1650         -              Normal
  04/26/2025 05 PM PDT            5.31           1665         +              Normal
  04/26/2025 06 PM PDT            5.31           1665         0              Normal
  04/26/2025 07 PM PDT            5.31           1665         0              Normal
  04/26/2025 08 PM PDT            5.28           1643         -              Normal
  04/26/2025 09 PM PDT            5.27           1635         -              Normal
  04/26/2025 10 PM PDT            5.26           1628         -              Normal
  04/26/2025 11 PM PDT            5.24           1614         -              Normal
  04/27/2025 12 AM PDT            5.18           1570         -              Normal
  04/27/2025 01 AM PDT            5.19           1577         +              Normal
  04/27/2025 02 AM PDT            5.15           1546         -              Normal
  04/27/2025 03 AM PDT            5.16           1554         +              Normal
  04/27/2025 04 AM PDT            5.14           1539         -              Normal
  04/27/2025 05 AM PDT            5.12           1523         -              Normal
  04/27/2025 06 AM PDT            5.12           1523         0              Normal
  04/27/2025 07 AM PDT            5.06           1478         -              Normal
  04/27/2025 08 AM PDT            5.07           1486         +              Normal
  04/27/2025 09 AM PDT            5.03           1456         -              Normal
  04/27/2025 10 AM PDT            5.04           1463         +              Normal
  04/27/2025 11 AM PDT            5.04           1463         0              Normal
  04/27/2025 12 PM PDT            5.01           1441         -              Normal
  04/27/2025 01 PM PDT            5.04           1463         +              Normal
  04/27/2025 02 PM PDT            4.98           1419         -              Normal
  04/27/2025 03 PM PDT            4.96           1405         -              Normal
  04/27/2025 04 PM PDT            4.99           1426         +              Normal
  04/27/2025 05 PM PDT            4.95           1397         -              Normal
  04/27/2025 06 PM PDT            4.95           1397         0              Normal
  04/27/2025 07 PM PDT            4.94           1390         -              Normal
  04/27/2025 08 PM PDT            4.94           1390         0              Normal
  04/27/2025 09 PM PDT            4.90           1362         -              Normal
  04/27/2025 10 PM PDT            4.89           1354         -              Normal
  04/27/2025 11 PM PDT            4.88           1347         -              Normal
  04/28/2025 12 AM PDT            4.86           1333         -              Normal
  04/28/2025 01 AM PDT            4.85           1326         -              Normal
  04/28/2025 02 AM PDT            4.83           1312         -              Normal
  04/28/2025 03 AM PDT            4.81           1299         -              Normal
  04/28/2025 04 AM PDT            4.81           1299         0              Normal
  04/28/2025 05 AM PDT            4.79           1285         -              Normal
  04/28/2025 06 AM PDT            4.78           1278         -              Normal
  04/28/2025 07 AM PDT            4.77           1271         -              Normal
  04/28/2025 08 AM PDT            4.72           1237         -              Normal
  04/28/2025 09 AM PDT            4.71           1231         -              Normal
  04/28/2025 10 AM PDT            4.71           1231         0              Normal
  04/28/2025 11 AM PDT            4.68           1211         -              Normal
  04/28/2025 12 PM PDT            4.65           1191         -              Normal
  04/28/2025 01 PM PDT            4.67           1204         +              Normal
  04/28/2025 02 PM PDT            4.67           1204         0              Normal
  04/28/2025 03 PM PDT            4.65           1191         -              Normal
  04/28/2025 04 PM PDT            4.63           1178         -              Normal
  04/28/2025 05 PM PDT            4.64           1184         +              Normal
  04/28/2025 06 PM PDT            4.66           1198         +              Normal
  04/28/2025 07 PM PDT            4.67           1204         +              Normal
  04/28/2025 08 PM PDT            4.75           1258         +              Normal
  04/28/2025 09 PM PDT            4.75           1258         0              Normal
  04/28/2025 10 PM PDT            4.77           1271         +              Normal
  04/28/2025 11 PM PDT            4.83           1312         +              Normal
  04/29/2025 12 AM PDT            4.85           1326         +              Normal
  04/29/2025 01 AM PDT            4.88           1347         +              Normal
  04/29/2025 02 AM PDT            4.84           1319         -              Normal
  04/29/2025 03 AM PDT            4.88           1347         +              Normal
  04/29/2025 04 AM PDT            4.91           1369         +              Normal
  04/29/2025 05 AM PDT            4.85           1326         -              Normal
  04/29/2025 06 AM PDT            4.85           1326         0              Normal
  04/29/2025 07 AM PDT            4.84           1319         -              Normal
  04/29/2025 08 AM PDT            4.83           1312         -              Normal
  04/29/2025 09 AM PDT            4.81           1299         -              Normal
  04/29/2025 10 AM PDT            4.81           1299         0              Normal
  04/29/2025 11 AM PDT            4.81           1299         0              Normal
  04/29/2025 12 PM PDT            4.78           1278         -              Normal
  04/29/2025 01 PM PDT            4.81           1299         +              Normal
  04/29/2025 02 PM PDT            4.79           1285         -              Normal
  04/29/2025 03 PM PDT            4.75           1258         -              Normal
  04/29/2025 04 PM PDT            4.77           1271         +              Normal
  04/29/2025 05 PM PDT            4.75           1258         -              Normal
  04/29/2025 06 PM PDT            4.76           1264         +              Normal
  04/29/2025 07 PM PDT            4.79           1285         +              Normal
  04/29/2025 08 PM PDT            4.83           1312         +              Normal
  04/29/2025 09 PM PDT            4.94           1390         +              Normal
  04/29/2025 10 PM PDT            5.01           1441         +              Normal
  04/29/2025 11 PM PDT            5.11           1516         +              Normal
  04/30/2025 12 AM PDT            5.19           1577         +              Normal
  04/30/2025 01 AM PDT            5.28           1643         +              Normal
  04/30/2025 02 AM PDT            5.33           1680         +              Normal
  04/30/2025 03 AM PDT            5.39           1724         +              Normal
  04/30/2025 04 AM PDT            5.40           1732         +              Normal
  04/30/2025 05 AM PDT            5.42           1747         +              Normal
  04/30/2025 06 AM PDT            5.37           1709         -              Normal
  04/30/2025 07 AM PDT            5.41           1740         +              Normal
  04/30/2025 08 AM PDT            5.35           1694         -              Normal
  04/30/2025 09 AM PDT            5.38           1717         +              Normal
  04/30/2025 10 AM PDT            5.31           1665         -              Normal
  04/30/2025 11 AM PDT            5.34           1687         +              Normal
  04/30/2025 12 PM PDT            5.34           1687         0              Normal
  04/30/2025 01 PM PDT            5.30           1657         -              Normal
  04/30/2025 02 PM PDT            5.26           1628         -              Normal
  04/30/2025 03 PM PDT            5.25           1621         -              Normal
  04/30/2025 04 PM PDT            5.28           1643         +              Normal
  04/30/2025 05 PM PDT            5.35           1694         +              Normal
  04/30/2025 06 PM PDT            5.31           1665         -              Normal
  04/30/2025 07 PM PDT            5.34           1687         +              Normal
  04/30/2025 08 PM PDT            5.42           1747         +              Normal
  04/30/2025 09 PM PDT            5.50           1808         +              Normal
  04/30/2025 10 PM PDT            5.56           1856         +              Normal
  04/30/2025 11 PM PDT            5.65           1930         +              Normal
  05/01/2025 12 AM PDT            5.72           1988         +              Normal
  05/01/2025 01 AM PDT            5.76           2021         +              Normal
  05/01/2025 02 AM PDT            5.77           2030         +              Normal
  05/01/2025 03 AM PDT            5.80           2055         +              Normal
  05/01/2025 04 AM PDT            5.77           2030         -              Normal
  05/01/2025 05 AM PDT            5.76           2021         -              Normal
  05/01/2025 06 AM PDT            5.71           1979         -              Normal
  05/01/2025 07 AM PDT            5.69           1963         -              Normal
  05/01/2025 08 AM PDT            5.67           1946         -              Normal
  05/01/2025 09 AM PDT            5.65           1930         -              Normal
#
# FORECAST
#
# Date & Time  (Local)    Stage (Feet)     Flow (cfs)     Trend     Forecast Status
# ---------------------------------------------------------------------------------
  05/01/2025 10 AM PDT            5.64           1921                        Normal
  05/01/2025 11 AM PDT            5.62           1905         -              Normal
  05/01/2025 12 PM PDT            5.61           1897         -              Normal
  05/01/2025 01 PM PDT            5.59           1881         -              Normal
  05/01/2025 02 PM PDT            5.59           1881         0              Normal
  05/01/2025 03 PM PDT            5.58           1872         -              Normal
  05/01/2025 04 PM PDT            5.57           1864         -              Normal
  05/01/2025 05 PM PDT            5.57           1864         0              Normal
  05/01/2025 06 PM PDT            5.60           1889         +              Normal
  05/01/2025 07 PM PDT            5.63           1913         +              Normal
  05/01/2025 08 PM PDT            5.69           1963         +              Normal
  05/01/2025 09 PM PDT            5.76           2021         +              Normal
  05/01/2025 10 PM PDT            5.83           2081         +              Normal
  05/01/2025 11 PM PDT            5.90           2142         +              Normal
  05/02/2025 12 AM PDT            5.96           2194         +              Normal
  05/02/2025 01 AM PDT            6.01           2238         +              Normal
  05/02/2025 02 AM PDT            6.05           2272         +              Normal
  05/02/2025 03 AM PDT            6.09           2306         +              Normal
  05/02/2025 04 AM PDT            6.12           2331         +              Normal
  05/02/2025 05 AM PDT            6.14           2348         +              Normal
  05/02/2025 06 AM PDT            6.15           2357         +              Normal
  05/02/2025 07 AM PDT            6.14           2348         -              Normal
  05/02/2025 08 AM PDT            6.13           2340         -              Normal
  05/02/2025 09 AM PDT            6.10           2314         -              Normal
  05/02/2025 10 AM PDT            6.07           2289         -              Normal
  05/02/2025 11 AM PDT            6.04           2263         -              Normal
  05/02/2025 12 PM PDT            6.02           2247         -              Normal
  05/02/2025 01 PM PDT            6.00           2230         -              Normal
  05/02/2025 02 PM PDT            5.99           2221         -              Normal
  05/02/2025 03 PM PDT            5.98           2212         -              Normal
  05/02/2025 04 PM PDT            5.97           2203         -              Normal
  05/02/2025 05 PM PDT            5.98           2212         +              Normal
  05/02/2025 06 PM PDT            6.02           2247         +              Normal
  05/02/2025 07 PM PDT            6.09           2306         +              Normal
  05/02/2025 08 PM PDT            6.19           2391         +              Normal
  05/02/2025 09 PM PDT            6.31           2496         +              Normal
  05/02/2025 10 PM PDT            6.45           2622         +              Normal
  05/02/2025 11 PM PDT            6.57           2733         +              Normal
  05/03/2025 12 AM PDT            6.67           2827         +              Normal
  05/03/2025 01 AM PDT            6.74           2894         +              Normal
  05/03/2025 02 AM PDT            6.79           2942         +              Normal
  05/03/2025 03 AM PDT            6.81           2962         +              Normal
  05/03/2025 04 AM PDT            6.82           2971         +              Normal
  05/03/2025 05 AM PDT            6.82           2971         0              Normal
  05/03/2025 06 AM PDT            6.82           2971         0              Normal
  05/03/2025 07 AM PDT            6.79           2942         -              Normal
  05/03/2025 08 AM PDT            6.75           2903         -              Normal
  05/03/2025 09 AM PDT            6.71           2865         -              Normal
  05/03/2025 10 AM PDT            6.68           2836         -              Normal
  05/03/2025 11 AM PDT            6.64           2799         -              Normal
  05/03/2025 12 PM PDT            6.61           2770         -              Normal
  05/03/2025 01 PM PDT            6.57           2733         -              Normal
  05/03/2025 02 PM PDT            6.55           2714         -              Normal
  05/03/2025 03 PM PDT            6.53           2696         -              Normal
  05/03/2025 04 PM PDT            6.51           2677         -              Normal
  05/03/2025 05 PM PDT            6.51           2677         0              Normal
  05/03/2025 06 PM PDT            6.55           2714         +              Normal
  05/03/2025 07 PM PDT            6.60           2761         +              Normal
  05/03/2025 08 PM PDT            6.67           2827         +              Normal
  05/03/2025 09 PM PDT            6.74           2894         +              Normal
  05/03/2025 10 PM PDT            6.81           2962         +              Normal
  05/03/2025 11 PM PDT            6.87           3020         +              Normal
  05/04/2025 12 AM PDT            6.91           3060         +              Normal
  05/04/2025 01 AM PDT            6.93           3080         +              Normal
  05/04/2025 02 AM PDT            6.94           3090         +              Normal
  05/04/2025 03 AM PDT            6.94           3090         0              Normal
  05/04/2025 04 AM PDT            6.94           3090         0              Normal
  05/04/2025 05 AM PDT            6.93           3080         -              Normal
  05/04/2025 06 AM PDT            6.91           3060         -              Normal
  05/04/2025 07 AM PDT            6.88           3030         -              Normal
  05/04/2025 08 AM PDT            6.85           3001         -              Normal
  05/04/2025 09 AM PDT            6.82           2971         -              Normal
  05/04/2025 10 AM PDT            6.79           2942         -              Normal
  05/04/2025 11 AM PDT            6.76           2913         -              Normal
  05/04/2025 12 PM PDT            6.73           2884         -              Normal
  05/04/2025 01 PM PDT            6.70           2856         -              Normal
  05/04/2025 02 PM PDT            6.68           2836         -              Normal
  05/04/2025 03 PM PDT            6.66           2817         -              Normal
  05/04/2025 04 PM PDT            6.63           2789         -              Normal
  05/04/2025 05 PM PDT            6.62           2780         -              Normal
  05/04/2025 06 PM PDT            6.63           2789         +              Normal
  05/04/2025 07 PM PDT            6.63           2789         0              Normal
  05/04/2025 08 PM PDT            6.65           2808         +              Normal
  05/04/2025 09 PM PDT            6.66           2817         +              Normal
  05/04/2025 10 PM PDT            6.68           2836         +              Normal
  05/04/2025 11 PM PDT            6.69           2846         +              Normal
  05/05/2025 12 AM PDT            6.70           2856         +              Normal
  05/05/2025 01 AM PDT            6.69           2846         -              Normal
  05/05/2025 02 AM PDT            6.69           2846         0              Normal
  05/05/2025 03 AM PDT            6.68           2836         -              Normal
  05/05/2025 04 AM PDT            6.67           2827         -              Normal
  05/05/2025 05 AM PDT            6.66           2817         -              Normal
  05/05/2025 06 AM PDT            6.63           2789         -              Normal
  05/05/2025 07 AM PDT            6.60           2761         -              Normal
  05/05/2025 08 AM PDT            6.56           2724         -              Normal
  05/05/2025 09 AM PDT            6.51           2677         -              Normal
  05/05/2025 10 AM PDT            6.46           2631         -              Normal
  05/05/2025 11 AM PDT            6.41           2586         -              Normal
  05/05/2025 12 PM PDT            6.36           2541         -              Normal
  05/05/2025 01 PM PDT            6.31           2496         -              Normal
  05/05/2025 02 PM PDT            6.27           2461         -              Normal
  05/05/2025 03 PM PDT            6.23           2426         -              Normal
  05/05/2025 04 PM PDT            6.19           2391         -              Normal
  05/05/2025 05 PM PDT            6.16           2365         -              Normal
  05/05/2025 06 PM PDT            6.16           2365         0              Normal
  05/05/2025 07 PM PDT            6.18           2383         +              Normal
  05/05/2025 08 PM PDT            6.22           2417         +              Normal
  05/05/2025 09 PM PDT            6.27           2461         +              Normal
  05/05/2025 10 PM PDT            6.33           2514         +              Normal
  05/05/2025 11 PM PDT            6.39           2568         +              Normal
  05/06/2025 12 AM PDT            6.44           2613         +              Normal
  05/06/2025 01 AM PDT            6.48           2650         +              Normal
  05/06/2025 02 AM PDT            6.51           2677         +              Normal
  05/06/2025 03 AM PDT            6.55           2714         +              Normal
  05/06/2025 04 AM PDT            6.57           2733         +              Normal
  05/06/2025 05 AM PDT            6.59           2752         +              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.