MERCED RIVER - YOSEMITE NP AT POHONO BRIDGE (POHC1)
Latitude: 37.72º NLongitude: 119.67º WElevation: 3862 FeetForecast Type: Official Location
Location: Mariposa County in CaliforniaBulletin Group: San JoaquinRiver Group: San Joaquin
Issuance Time: May 22 2026 at 8:14 AM PDTNext Issuance: May 23 2026 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:  05/22/2026 at 08:14 AM PDT
# Data Interval:  1 Hour
#
# Most Recent Date & Time of Maximum Observed:  05/17/2026 at 10:00 AM PDT
# Maximum Observed Stage:                       5.21 Feet
# Maximum Observed Flow:                        1517 cfs
#
# Earliest Date & Time of Maximum Forecast:     05/25/2026 at 05:00 AM PDT
# Maximum Forecast Stage:                       5.37 Feet
# Maximum Forecast Flow:                        1630 cfs
#
# OBSERVED
#
# Date & Time  (Local)    Stage (Feet)     Flow (cfs)     Trend     Observed Status
# ---------------------------------------------------------------------------------
  05/17/2026 08 AM PDT            5.19           1503                        Normal
  05/17/2026 09 AM PDT            5.15           1475         -              Normal
  05/17/2026 10 AM PDT            5.21           1517         +              Normal
  05/17/2026 11 AM PDT            5.20           1510         -              Normal
  05/17/2026 12 PM PDT            5.19           1503         -              Normal
  05/17/2026 01 PM PDT            5.16           1482         -              Normal
  05/17/2026 02 PM PDT            5.12           1455         -              Normal
  05/17/2026 03 PM PDT            5.10           1441         -              Normal
  05/17/2026 04 PM PDT            5.08           1428         -              Normal
  05/17/2026 05 PM PDT            5.08           1428         0              Normal
  05/17/2026 06 PM PDT            5.04           1401         -              Normal
  05/17/2026 07 PM PDT            5.01           1381         -              Normal
  05/17/2026 08 PM PDT            4.98           1361         -              Normal
  05/17/2026 09 PM PDT            4.96           1348         -              Normal
  05/17/2026 10 PM PDT            4.95           1341         -              Normal
  05/17/2026 11 PM PDT            4.93           1328         -              Normal
  05/18/2026 12 AM PDT            4.89           1302         -              Normal
  05/18/2026 01 AM PDT            4.89           1302         0              Normal
  05/18/2026 02 AM PDT            4.88           1296         -              Normal
  05/18/2026 03 AM PDT            4.88           1296         0              Normal
  05/18/2026 04 AM PDT            4.84           1270         -              Normal
  05/18/2026 05 AM PDT            4.87           1290         +              Normal
  05/18/2026 06 AM PDT            4.87           1290         0              Normal
  05/18/2026 07 AM PDT            4.86           1283         -              Normal
  05/18/2026 08 AM PDT            4.86           1283         0              Normal
  05/18/2026 09 AM PDT            4.82           1258         -              Normal
  05/18/2026 10 AM PDT            4.82           1258         0              Normal
  05/18/2026 11 AM PDT            4.79           1239         -              Normal
  05/18/2026 12 PM PDT            4.80           1245         +              Normal
  05/18/2026 01 PM PDT            4.74           1208         -              Normal
  05/18/2026 02 PM PDT            4.73           1201         -              Normal
  05/18/2026 03 PM PDT            4.72           1195         -              Normal
  05/18/2026 04 PM PDT            4.62           1134         -              Normal
  05/18/2026 05 PM PDT            4.62           1134         0              Normal
  05/18/2026 06 PM PDT            4.64           1146         +              Normal
  05/18/2026 07 PM PDT            4.59           1116         -              Normal
  05/18/2026 08 PM PDT            4.60           1122         +              Normal
  05/18/2026 09 PM PDT            4.60           1122         0              Normal
  05/18/2026 10 PM PDT            4.57           1104         -              Normal
  05/18/2026 11 PM PDT            4.58           1110         +              Normal
  05/19/2026 12 AM PDT            4.58           1110         0              Normal
  05/19/2026 01 AM PDT            4.55           1093         -              Normal
  05/19/2026 02 AM PDT            4.52           1075         -              Normal
  05/19/2026 03 AM PDT            4.51           1069         -              Normal
  05/19/2026 04 AM PDT            4.49           1058         -              Normal
  05/19/2026 05 AM PDT            4.49           1058         0              Normal
  05/19/2026 06 AM PDT            4.50           1063         +              Normal
  05/19/2026 07 AM PDT            4.51           1069         +              Normal
  05/19/2026 08 AM PDT            4.49           1058         -              Normal
  05/19/2026 09 AM PDT            4.50           1063         +              Normal
  05/19/2026 10 AM PDT            4.48           1052         -              Normal
  05/19/2026 11 AM PDT            4.46           1040         -              Normal
  05/19/2026 12 PM PDT            4.45           1034         -              Normal
  05/19/2026 01 PM PDT            4.44           1029         -              Normal
  05/19/2026 02 PM PDT            4.43           1023         -              Normal
  05/19/2026 03 PM PDT            4.43           1023         0              Normal
  05/19/2026 04 PM PDT            4.37            989         -              Normal
  05/19/2026 05 PM PDT            4.38            995         +              Normal
  05/19/2026 06 PM PDT            4.35            978         -              Normal
  05/19/2026 07 PM PDT            4.36            983         +              Normal
  05/19/2026 08 PM PDT            4.32            961         -              Normal
  05/19/2026 09 PM PDT            4.31            956         -              Normal
  05/19/2026 10 PM PDT            4.31            956         0              Normal
  05/19/2026 11 PM PDT            4.29            945         -              Normal
  05/20/2026 12 AM PDT            4.27            934         -              Normal
  05/20/2026 01 AM PDT            4.26            928         -              Normal
  05/20/2026 02 AM PDT            4.29            945         +              Normal
  05/20/2026 03 AM PDT            4.28            939         -              Normal
  05/20/2026 04 AM PDT            4.29            945         +              Normal
  05/20/2026 05 AM PDT            4.31            956         +              Normal
  05/20/2026 06 AM PDT            4.33            967         +              Normal
  05/20/2026 07 AM PDT            4.33            967         0              Normal
  05/20/2026 08 AM PDT            4.31            956         -              Normal
  05/20/2026 09 AM PDT            4.34            972         +              Normal
  05/20/2026 10 AM PDT            4.36            983         +              Normal
  05/20/2026 11 AM PDT            4.34            972         -              Normal
  05/20/2026 12 PM PDT            4.30            950         -              Normal
  05/20/2026 01 PM PDT            4.29            945         -              Normal
  05/20/2026 02 PM PDT            4.32            961         +              Normal
  05/20/2026 03 PM PDT            4.32            961         0              Normal
  05/20/2026 04 PM PDT            4.30            950         -              Normal
  05/20/2026 05 PM PDT            4.28            939         -              Normal
  05/20/2026 06 PM PDT            4.29            945         +              Normal
  05/20/2026 07 PM PDT            4.23            912         -              Normal
  05/20/2026 08 PM PDT            4.27            934         +              Normal
  05/20/2026 09 PM PDT            4.22            907         -              Normal
  05/20/2026 10 PM PDT            4.24            918         +              Normal
  05/20/2026 11 PM PDT            4.21            901         -              Normal
  05/21/2026 12 AM PDT            4.19            891         -              Normal
  05/21/2026 01 AM PDT            4.20            896         +              Normal
  05/21/2026 02 AM PDT            4.18            885         -              Normal
  05/21/2026 03 AM PDT            4.24            918         +              Normal
  05/21/2026 04 AM PDT            4.25            923         +              Normal
  05/21/2026 05 AM PDT            4.33            967         +              Normal
  05/21/2026 06 AM PDT            4.34            972         +              Normal
  05/21/2026 07 AM PDT            4.35            978         +              Normal
  05/21/2026 08 AM PDT            4.40           1006         +              Normal
  05/21/2026 09 AM PDT            4.38            995         -              Normal
  05/21/2026 10 AM PDT            4.35            978         -              Normal
  05/21/2026 11 AM PDT            4.42           1017         +              Normal
  05/21/2026 12 PM PDT            4.41           1012         -              Normal
  05/21/2026 01 PM PDT            4.40           1006         -              Normal
  05/21/2026 02 PM PDT            4.36            983         -              Normal
  05/21/2026 03 PM PDT            4.38            995         +              Normal
  05/21/2026 04 PM PDT            4.32            961         -              Normal
  05/21/2026 05 PM PDT            4.36            983         +              Normal
  05/21/2026 06 PM PDT            4.35            978         -              Normal
  05/21/2026 07 PM PDT            4.33            967         -              Normal
  05/21/2026 08 PM PDT            4.33            967         0              Normal
  05/21/2026 09 PM PDT            4.30            950         -              Normal
  05/21/2026 10 PM PDT            4.30            950         0              Normal
  05/21/2026 11 PM PDT            4.26            928         -              Normal
  05/22/2026 12 AM PDT            4.27            934         +              Normal
  05/22/2026 01 AM PDT            4.30            950         +              Normal
  05/22/2026 02 AM PDT            4.35            978         +              Normal
  05/22/2026 03 AM PDT            4.39           1000         +              Normal
  05/22/2026 04 AM PDT            4.45           1034         +              Normal
  05/22/2026 05 AM PDT            4.49           1058         +              Normal
  05/22/2026 06 AM PDT            4.54           1087         +              Normal
  05/22/2026 07 AM PDT            4.56           1099         +              Normal
  05/22/2026 08 AM PDT            4.57           1104         +              Normal
#
# FORECAST
#
# Date & Time  (Local)    Stage (Feet)     Flow (cfs)     Trend     Forecast Status
# ---------------------------------------------------------------------------------
  05/22/2026 09 AM PDT            4.57           1104                        Normal
  05/22/2026 10 AM PDT            4.56           1099         -              Normal
  05/22/2026 11 AM PDT            4.55           1093         -              Normal
  05/22/2026 12 PM PDT            4.54           1087         -              Normal
  05/22/2026 01 PM PDT            4.52           1075         -              Normal
  05/22/2026 02 PM PDT            4.51           1069         -              Normal
  05/22/2026 03 PM PDT            4.50           1063         -              Normal
  05/22/2026 04 PM PDT            4.49           1058         -              Normal
  05/22/2026 05 PM PDT            4.49           1058         0              Normal
  05/22/2026 06 PM PDT            4.50           1063         +              Normal
  05/22/2026 07 PM PDT            4.51           1069         +              Normal
  05/22/2026 08 PM PDT            4.54           1087         +              Normal
  05/22/2026 09 PM PDT            4.59           1116         +              Normal
  05/22/2026 10 PM PDT            4.66           1158         +              Normal
  05/22/2026 11 PM PDT            4.72           1195         +              Normal
  05/23/2026 12 AM PDT            4.78           1233         +              Normal
  05/23/2026 01 AM PDT            4.83           1264         +              Normal
  05/23/2026 02 AM PDT            4.87           1290         +              Normal
  05/23/2026 03 AM PDT            4.90           1309         +              Normal
  05/23/2026 04 AM PDT            4.92           1322         +              Normal
  05/23/2026 05 AM PDT            4.93           1328         +              Normal
  05/23/2026 06 AM PDT            4.94           1335         +              Normal
  05/23/2026 07 AM PDT            4.94           1335         0              Normal
  05/23/2026 08 AM PDT            4.93           1328         -              Normal
  05/23/2026 09 AM PDT            4.91           1315         -              Normal
  05/23/2026 10 AM PDT            4.89           1302         -              Normal
  05/23/2026 11 AM PDT            4.87           1290         -              Normal
  05/23/2026 12 PM PDT            4.84           1270         -              Normal
  05/23/2026 01 PM PDT            4.81           1251         -              Normal
  05/23/2026 02 PM PDT            4.78           1233         -              Normal
  05/23/2026 03 PM PDT            4.75           1214         -              Normal
  05/23/2026 04 PM PDT            4.72           1195         -              Normal
  05/23/2026 05 PM PDT            4.70           1183         -              Normal
  05/23/2026 06 PM PDT            4.69           1177         -              Normal
  05/23/2026 07 PM PDT            4.70           1183         +              Normal
  05/23/2026 08 PM PDT            4.73           1201         +              Normal
  05/23/2026 09 PM PDT            4.79           1239         +              Normal
  05/23/2026 10 PM PDT            4.85           1277         +              Normal
  05/23/2026 11 PM PDT            4.92           1322         +              Normal
  05/24/2026 12 AM PDT            4.99           1368         +              Normal
  05/24/2026 01 AM PDT            5.05           1408         +              Normal
  05/24/2026 02 AM PDT            5.08           1428         +              Normal
  05/24/2026 03 AM PDT            5.11           1448         +              Normal
  05/24/2026 04 AM PDT            5.13           1462         +              Normal
  05/24/2026 05 AM PDT            5.15           1475         +              Normal
  05/24/2026 06 AM PDT            5.16           1482         +              Normal
  05/24/2026 07 AM PDT            5.16           1482         0              Normal
  05/24/2026 08 AM PDT            5.14           1469         -              Normal
  05/24/2026 09 AM PDT            5.12           1455         -              Normal
  05/24/2026 10 AM PDT            5.09           1435         -              Normal
  05/24/2026 11 AM PDT            5.06           1414         -              Normal
  05/24/2026 12 PM PDT            5.03           1394         -              Normal
  05/24/2026 01 PM PDT            4.99           1368         -              Normal
  05/24/2026 02 PM PDT            4.96           1348         -              Normal
  05/24/2026 03 PM PDT            4.93           1328         -              Normal
  05/24/2026 04 PM PDT            4.91           1315         -              Normal
  05/24/2026 05 PM PDT            4.89           1302         -              Normal
  05/24/2026 06 PM PDT            4.89           1302         0              Normal
  05/24/2026 07 PM PDT            4.90           1309         +              Normal
  05/24/2026 08 PM PDT            4.95           1341         +              Normal
  05/24/2026 09 PM PDT            5.01           1381         +              Normal
  05/24/2026 10 PM PDT            5.09           1435         +              Normal
  05/24/2026 11 PM PDT            5.17           1489         +              Normal
  05/25/2026 12 AM PDT            5.24           1538         +              Normal
  05/25/2026 01 AM PDT            5.29           1573         +              Normal
  05/25/2026 02 AM PDT            5.32           1595         +              Normal
  05/25/2026 03 AM PDT            5.35           1616         +              Normal
  05/25/2026 04 AM PDT            5.36           1623         +              Normal
  05/25/2026 05 AM PDT            5.37           1630         +              Normal
  05/25/2026 06 AM PDT            5.37           1630         0              Normal
  05/25/2026 07 AM PDT            5.36           1623         -              Normal
  05/25/2026 08 AM PDT            5.33           1602         -              Normal
  05/25/2026 09 AM PDT            5.29           1573         -              Normal
  05/25/2026 10 AM PDT            5.25           1545         -              Normal
  05/25/2026 11 AM PDT            5.21           1517         -              Normal
  05/25/2026 12 PM PDT            5.17           1489         -              Normal
  05/25/2026 01 PM PDT            5.12           1455         -              Normal
  05/25/2026 02 PM PDT            5.08           1428         -              Normal
  05/25/2026 03 PM PDT            5.03           1394         -              Normal
  05/25/2026 04 PM PDT            4.99           1368         -              Normal
  05/25/2026 05 PM PDT            4.96           1348         -              Normal
  05/25/2026 06 PM PDT            4.93           1328         -              Normal
  05/25/2026 07 PM PDT            4.92           1322         -              Normal
  05/25/2026 08 PM PDT            4.95           1341         +              Normal
  05/25/2026 09 PM PDT            4.99           1368         +              Normal
  05/25/2026 10 PM PDT            5.04           1401         +              Normal
  05/25/2026 11 PM PDT            5.09           1435         +              Normal
  05/26/2026 12 AM PDT            5.13           1462         +              Normal
  05/26/2026 01 AM PDT            5.17           1489         +              Normal
  05/26/2026 02 AM PDT            5.19           1503         +              Normal
  05/26/2026 03 AM PDT            5.20           1510         +              Normal
  05/26/2026 04 AM PDT            5.21           1517         +              Normal
  05/26/2026 05 AM PDT            5.21           1517         0              Normal
  05/26/2026 06 AM PDT            5.20           1510         -              Normal
  05/26/2026 07 AM PDT            5.18           1496         -              Normal
  05/26/2026 08 AM PDT            5.16           1482         -              Normal
  05/26/2026 09 AM PDT            5.13           1462         -              Normal
  05/26/2026 10 AM PDT            5.09           1435         -              Normal
  05/26/2026 11 AM PDT            5.05           1408         -              Normal
  05/26/2026 12 PM PDT            5.01           1381         -              Normal
  05/26/2026 01 PM PDT            4.97           1355         -              Normal
  05/26/2026 02 PM PDT            4.92           1322         -              Normal
  05/26/2026 03 PM PDT            4.88           1296         -              Normal
  05/26/2026 04 PM PDT            4.84           1270         -              Normal
  05/26/2026 05 PM PDT            4.81           1251         -              Normal
  05/26/2026 06 PM PDT            4.78           1233         -              Normal
  05/26/2026 07 PM PDT            4.77           1226         -              Normal
  05/26/2026 08 PM PDT            4.78           1233         +              Normal
  05/26/2026 09 PM PDT            4.81           1251         +              Normal
  05/26/2026 10 PM PDT            4.84           1270         +              Normal
  05/26/2026 11 PM PDT            4.88           1296         +              Normal
  05/27/2026 12 AM PDT            4.92           1322         +              Normal
  05/27/2026 01 AM PDT            4.94           1335         +              Normal
  05/27/2026 02 AM PDT            4.95           1341         +              Normal
  05/27/2026 03 AM PDT            4.96           1348         +              Normal
  05/27/2026 04 AM PDT            4.96           1348         0              Normal
  05/27/2026 05 AM PDT            4.95           1341         -              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.