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 FeetForecast Type: Official Location
Location: Mariposa County in CaliforniaBulletin Group: San JoaquinRiver Group: San Joaquin
Issuance Time: May 26 2026 at 7:30 AM PDTNext Issuance: May 27 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:  05/26/2026 at 10:36 AM PDT
# Data Interval:  1 Hour
#
# Most Recent Date & Time of Maximum Observed:  05/24/2026 at 10:00 AM PDT
# Maximum Observed Stage:                       4.70 Feet
# Maximum Observed Flow:                        1183 cfs
#
# Earliest Date & Time of Maximum Forecast:     05/30/2026 at 08:00 AM PDT
# Maximum Forecast Stage:                       4.72 Feet
# Maximum Forecast Flow:                        1195 cfs
#
# OBSERVED
#
# Date & Time  (Local)    Stage (Feet)     Flow (cfs)     Trend     Observed Status
# ---------------------------------------------------------------------------------
  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            4.55           1093         +              Normal
  05/22/2026 08 AM PDT            4.56           1099         +              Normal
  05/22/2026 09 AM PDT            4.58           1110         +              Normal
  05/22/2026 10 AM PDT            4.61           1128         +              Normal
  05/22/2026 11 AM PDT            4.60           1122         -              Normal
  05/22/2026 12 PM PDT            4.62           1134         +              Normal
  05/22/2026 01 PM PDT            4.61           1128         -              Normal
  05/22/2026 02 PM PDT            4.61           1128         0              Normal
  05/22/2026 03 PM PDT            4.55           1093         -              Normal
  05/22/2026 04 PM PDT            4.56           1099         +              Normal
  05/22/2026 05 PM PDT            4.57           1104         +              Normal
  05/22/2026 06 PM PDT            4.58           1110         +              Normal
  05/22/2026 07 PM PDT            4.51           1069         -              Normal
  05/22/2026 08 PM PDT            4.50           1063         -              Normal
  05/22/2026 09 PM PDT            4.52           1075         +              Normal
  05/22/2026 10 PM PDT            4.45           1034         -              Normal
  05/22/2026 11 PM PDT            4.47           1046         +              Normal
  05/23/2026 12 AM PDT            4.45           1034         -              Normal
  05/23/2026 01 AM PDT            4.49           1058         +              Normal
  05/23/2026 02 AM PDT            4.55           1093         +              Normal
  05/23/2026 03 AM PDT            4.56           1099         +              Normal
  05/23/2026 04 AM PDT            4.59           1116         +              Normal
  05/23/2026 05 AM PDT            4.64           1146         +              Normal
  05/23/2026 06 AM PDT            4.65           1152         +              Normal
  05/23/2026 07 AM PDT            4.66           1158         +              Normal
  05/23/2026 08 AM PDT            4.67           1165         +              Normal
  05/23/2026 09 AM PDT            4.66           1158         -              Normal
  05/23/2026 10 AM PDT            4.65           1152         -              Normal
  05/23/2026 11 AM PDT            4.64           1146         -              Normal
  05/23/2026 12 PM PDT            4.62           1134         -              Normal
  05/23/2026 01 PM PDT            4.61           1128         -              Normal
  05/23/2026 02 PM PDT            4.61           1128         0              Normal
  05/23/2026 03 PM PDT            4.59           1116         -              Normal
  05/23/2026 04 PM PDT            4.56           1099         -              Normal
  05/23/2026 05 PM PDT            4.53           1081         -              Normal
  05/23/2026 06 PM PDT            4.52           1075         -              Normal
  05/23/2026 07 PM PDT            4.49           1058         -              Normal
  05/23/2026 08 PM PDT            4.48           1052         -              Normal
  05/23/2026 09 PM PDT            4.43           1023         -              Normal
  05/23/2026 10 PM PDT            4.42           1017         -              Normal
  05/23/2026 11 PM PDT            4.40           1006         -              Normal
  05/24/2026 12 AM PDT            4.39           1000         -              Normal
  05/24/2026 01 AM PDT            4.45           1034         +              Normal
  05/24/2026 02 AM PDT            4.48           1052         +              Normal
  05/24/2026 03 AM PDT            4.50           1063         +              Normal
  05/24/2026 04 AM PDT            4.54           1087         +              Normal
  05/24/2026 05 AM PDT            4.58           1110         +              Normal
  05/24/2026 06 AM PDT            4.62           1134         +              Normal
  05/24/2026 07 AM PDT            4.63           1140         +              Normal
  05/24/2026 08 AM PDT            4.64           1146         +              Normal
  05/24/2026 09 AM PDT            4.67           1165         +              Normal
  05/24/2026 10 AM PDT            4.70           1183         +              Normal
  05/24/2026 11 AM PDT            4.68           1171         -              Normal
  05/24/2026 12 PM PDT            4.67           1165         -              Normal
  05/24/2026 01 PM PDT            4.66           1158         -              Normal
  05/24/2026 02 PM PDT            4.65           1152         -              Normal
  05/24/2026 03 PM PDT            4.66           1158         +              Normal
  05/24/2026 04 PM PDT            4.64           1146         -              Normal
  05/24/2026 05 PM PDT            4.60           1122         -              Normal
  05/24/2026 06 PM PDT            4.62           1134         +              Normal
  05/24/2026 07 PM PDT            4.57           1104         -              Normal
  05/24/2026 08 PM PDT            4.53           1081         -              Normal
  05/24/2026 09 PM PDT            4.52           1075         -              Normal
  05/24/2026 10 PM PDT            4.52           1075         0              Normal
  05/24/2026 11 PM PDT            4.53           1081         +              Normal
  05/25/2026 12 AM PDT            4.55           1093         +              Normal
  05/25/2026 01 AM PDT            4.54           1087         -              Normal
  05/25/2026 02 AM PDT            4.59           1116         +              Normal
  05/25/2026 03 AM PDT            4.59           1116         0              Normal
  05/25/2026 04 AM PDT            4.61           1128         +              Normal
  05/25/2026 05 AM PDT            4.64           1146         +              Normal
  05/25/2026 06 AM PDT            4.63           1140         -              Normal
  05/25/2026 07 AM PDT            4.65           1152         +              Normal
  05/25/2026 08 AM PDT            4.62           1134         -              Normal
  05/25/2026 09 AM PDT            4.62           1134         0              Normal
  05/25/2026 10 AM PDT            4.59           1116         -              Normal
  05/25/2026 11 AM PDT            4.60           1122         +              Normal
  05/25/2026 12 PM PDT            4.59           1116         -              Normal
  05/25/2026 01 PM PDT            4.57           1104         -              Normal
  05/25/2026 02 PM PDT            4.53           1081         -              Normal
  05/25/2026 03 PM PDT            4.56           1099         +              Normal
  05/25/2026 04 PM PDT            4.54           1087         -              Normal
  05/25/2026 05 PM PDT            4.51           1069         -              Normal
  05/25/2026 06 PM PDT            4.44           1029         -              Normal
  05/25/2026 07 PM PDT            4.46           1040         +              Normal
  05/25/2026 08 PM PDT            4.44           1029         -              Normal
  05/25/2026 09 PM PDT            4.40           1006         -              Normal
  05/25/2026 10 PM PDT            4.37            989         -              Normal
  05/25/2026 11 PM PDT            4.40           1006         +              Normal
  05/26/2026 12 AM PDT            4.42           1017         +              Normal
  05/26/2026 01 AM PDT            4.41           1012         -              Normal
  05/26/2026 02 AM PDT            4.44           1029         +              Normal
  05/26/2026 03 AM PDT            4.48           1052         +              Normal
  05/26/2026 04 AM PDT            4.53           1081         +              Normal
  05/26/2026 05 AM PDT            4.57           1104         +              Normal
  05/26/2026 06 AM PDT            4.62           1134         +              Normal
  05/26/2026 07 AM PDT            4.65           1152         +              Normal
#
# FORECAST
#
# Date & Time  (Local)    Stage (Feet)     Flow (cfs)     Trend     Forecast Status
# ---------------------------------------------------------------------------------
  05/26/2026 10 AM PDT            4.63           1140                        Normal
  05/26/2026 11 AM PDT            4.60           1122         -              Normal
  05/26/2026 12 PM PDT            4.58           1110         -              Normal
  05/26/2026 01 PM PDT            4.55           1093         -              Normal
  05/26/2026 02 PM PDT            4.52           1075         -              Normal
  05/26/2026 03 PM PDT            4.48           1052         -              Normal
  05/26/2026 04 PM PDT            4.45           1034         -              Normal
  05/26/2026 05 PM PDT            4.42           1017         -              Normal
  05/26/2026 06 PM PDT            4.39           1000         -              Normal
  05/26/2026 07 PM PDT            4.37            989         -              Normal
  05/26/2026 08 PM PDT            4.35            978         -              Normal
  05/26/2026 09 PM PDT            4.34            972         -              Normal
  05/26/2026 10 PM PDT            4.34            972         0              Normal
  05/26/2026 11 PM PDT            4.33            967         -              Normal
  05/27/2026 12 AM PDT            4.33            967         0              Normal
  05/27/2026 01 AM PDT            4.32            961         -              Normal
  05/27/2026 02 AM PDT            4.31            956         -              Normal
  05/27/2026 03 AM PDT            4.29            945         -              Normal
  05/27/2026 04 AM PDT            4.28            939         -              Normal
  05/27/2026 05 AM PDT            4.26            928         -              Normal
  05/27/2026 06 AM PDT            4.24            918         -              Normal
  05/27/2026 07 AM PDT            4.22            907         -              Normal
  05/27/2026 08 AM PDT            4.20            896         -              Normal
  05/27/2026 09 AM PDT            4.17            880         -              Normal
  05/27/2026 10 AM PDT            4.15            870         -              Normal
  05/27/2026 11 AM PDT            4.13            859         -              Normal
  05/27/2026 12 PM PDT            4.11            849         -              Normal
  05/27/2026 01 PM PDT            4.09            838         -              Normal
  05/27/2026 02 PM PDT            4.07            828         -              Normal
  05/27/2026 03 PM PDT            4.05            818         -              Normal
  05/27/2026 04 PM PDT            4.03            808         -              Normal
  05/27/2026 05 PM PDT            4.02            803         -              Normal
  05/27/2026 06 PM PDT            4.00            793         -              Normal
  05/27/2026 07 PM PDT            4.00            793         0              Normal
  05/27/2026 08 PM PDT            3.99            788         -              Normal
  05/27/2026 09 PM PDT            4.00            793         +              Normal
  05/27/2026 10 PM PDT            4.00            793         0              Normal
  05/27/2026 11 PM PDT            4.01            798         +              Normal
  05/28/2026 12 AM PDT            4.02            803         +              Normal
  05/28/2026 01 AM PDT            4.03            808         +              Normal
  05/28/2026 02 AM PDT            4.04            813         +              Normal
  05/28/2026 03 AM PDT            4.05            818         +              Normal
  05/28/2026 04 AM PDT            4.06            823         +              Normal
  05/28/2026 05 AM PDT            4.07            828         +              Normal
  05/28/2026 06 AM PDT            4.08            833         +              Normal
  05/28/2026 07 AM PDT            4.09            838         +              Normal
  05/28/2026 08 AM PDT            4.09            838         0              Normal
  05/28/2026 09 AM PDT            4.10            844         +              Normal
  05/28/2026 10 AM PDT            4.10            844         0              Normal
  05/28/2026 11 AM PDT            4.09            838         -              Normal
  05/28/2026 12 PM PDT            4.09            838         0              Normal
  05/28/2026 01 PM PDT            4.09            838         0              Normal
  05/28/2026 02 PM PDT            4.09            838         0              Normal
  05/28/2026 03 PM PDT            4.08            833         -              Normal
  05/28/2026 04 PM PDT            4.08            833         0              Normal
  05/28/2026 05 PM PDT            4.07            828         -              Normal
  05/28/2026 06 PM PDT            4.07            828         0              Normal
  05/28/2026 07 PM PDT            4.08            833         +              Normal
  05/28/2026 08 PM PDT            4.09            838         +              Normal
  05/28/2026 09 PM PDT            4.11            849         +              Normal
  05/28/2026 10 PM PDT            4.13            859         +              Normal
  05/28/2026 11 PM PDT            4.16            875         +              Normal
  05/29/2026 12 AM PDT            4.18            885         +              Normal
  05/29/2026 01 AM PDT            4.21            901         +              Normal
  05/29/2026 02 AM PDT            4.23            912         +              Normal
  05/29/2026 03 AM PDT            4.25            923         +              Normal
  05/29/2026 04 AM PDT            4.27            934         +              Normal
  05/29/2026 05 AM PDT            4.29            945         +              Normal
  05/29/2026 06 AM PDT            4.31            956         +              Normal
  05/29/2026 07 AM PDT            4.32            961         +              Normal
  05/29/2026 08 AM PDT            4.32            961         0              Normal
  05/29/2026 09 AM PDT            4.33            967         +              Normal
  05/29/2026 10 AM PDT            4.32            961         -              Normal
  05/29/2026 11 AM PDT            4.32            961         0              Normal
  05/29/2026 12 PM PDT            4.31            956         -              Normal
  05/29/2026 01 PM PDT            4.31            956         0              Normal
  05/29/2026 02 PM PDT            4.30            950         -              Normal
  05/29/2026 03 PM PDT            4.29            945         -              Normal
  05/29/2026 04 PM PDT            4.29            945         0              Normal
  05/29/2026 05 PM PDT            4.28            939         -              Normal
  05/29/2026 06 PM PDT            4.28            939         0              Normal
  05/29/2026 07 PM PDT            4.29            945         +              Normal
  05/29/2026 08 PM PDT            4.30            950         +              Normal
  05/29/2026 09 PM PDT            4.33            967         +              Normal
  05/29/2026 10 PM PDT            4.37            989         +              Normal
  05/29/2026 11 PM PDT            4.41           1012         +              Normal
  05/30/2026 12 AM PDT            4.45           1034         +              Normal
  05/30/2026 01 AM PDT            4.49           1058         +              Normal
  05/30/2026 02 AM PDT            4.53           1081         +              Normal
  05/30/2026 03 AM PDT            4.57           1104         +              Normal
  05/30/2026 04 AM PDT            4.62           1134         +              Normal
  05/30/2026 05 AM PDT            4.66           1158         +              Normal
  05/30/2026 06 AM PDT            4.69           1177         +              Normal
  05/30/2026 07 AM PDT            4.71           1189         +              Normal
  05/30/2026 08 AM PDT            4.72           1195         +              Normal
  05/30/2026 09 AM PDT            4.71           1189         -              Normal
  05/30/2026 10 AM PDT            4.68           1171         -              Normal
  05/30/2026 11 AM PDT            4.65           1152         -              Normal
  05/30/2026 12 PM PDT            4.61           1128         -              Normal
  05/30/2026 01 PM PDT            4.57           1104         -              Normal
  05/30/2026 02 PM PDT            4.53           1081         -              Normal
  05/30/2026 03 PM PDT            4.49           1058         -              Normal
  05/30/2026 04 PM PDT            4.45           1034         -              Normal
  05/30/2026 05 PM PDT            4.42           1017         -              Normal
  05/30/2026 06 PM PDT            4.39           1000         -              Normal
  05/30/2026 07 PM PDT            4.38            995         -              Normal
  05/30/2026 08 PM PDT            4.38            995         0              Normal
  05/30/2026 09 PM PDT            4.41           1012         +              Normal
  05/30/2026 10 PM PDT            4.44           1029         +              Normal
  05/30/2026 11 PM PDT            4.48           1052         +              Normal
  05/31/2026 12 AM PDT            4.53           1081         +              Normal
  05/31/2026 01 AM PDT            4.57           1104         +              Normal
  05/31/2026 02 AM PDT            4.61           1128         +              Normal
  05/31/2026 03 AM PDT            4.63           1140         +              Normal
  05/31/2026 04 AM PDT            4.64           1146         +              Normal
  05/31/2026 05 AM PDT            4.64           1146         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.