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 HAPPY ISLES (HPIC1)
Latitude: 37.73º NLongitude: 119.56º WElevation: 4017 Feet
Location: Mariposa County in CaliforniaRiver Group: San Joaquin
Issuance Time: Jun 12 2021 at 7:50 AM PDTNext Issuance: Jun 13 2021 at 9:00 AM PDT
Monitor Stage: N/A Flood Stage: 8.0 Feet

# Tabular Observed and Forecast Hydrograph Information
#
# Location: Merced River - Yosemite NP at Happy Isles (HPIC1)
#
# File Generation Time:  06/12/2021 at 07:50 AM PDT
# Data Interval:  1 Hour
#
# Most Recent Date & Time of Maximum Observed:  06/07/2021 at 11:00 AM PDT
# Maximum Observed Stage:                       3.0 Feet
# Maximum Observed Flow:                        399 cfs
#
# Earliest Date & Time of Maximum Forecast:     06/17/2021 at 01:00 AM PDT
# Maximum Forecast Stage:                       2.6 Feet
# Maximum Forecast Flow:                        291 cfs
#
# OBSERVED
#
# Date & Time  (Local)    Stage (Feet)     Flow (cfs)     Trend     Observed Status
# ---------------------------------------------------------------------------------
  06/07/2021 07 AM PDT             3.0            390                        Normal
  06/07/2021 08 AM PDT             3.0            393         +              Normal
  06/07/2021 09 AM PDT             3.0            393         0              Normal
  06/07/2021 10 AM PDT             3.0            390         -              Normal
  06/07/2021 11 AM PDT             3.0            399         +              Normal
  06/07/2021 12 PM PDT             3.0            396         -              Normal
  06/07/2021 01 PM PDT             3.0            396         0              Normal
  06/07/2021 02 PM PDT             3.0            393         -              Normal
  06/07/2021 03 PM PDT             3.0            390         -              Normal
  06/07/2021 04 PM PDT             3.0            390         0              Normal
  06/07/2021 05 PM PDT             3.0            384         -              Normal
  06/07/2021 06 PM PDT             3.0            384         0              Normal
  06/07/2021 07 PM PDT             2.9            381         -              Normal
  06/07/2021 08 PM PDT             2.9            381         0              Normal
  06/07/2021 09 PM PDT             2.9            371         -              Normal
  06/07/2021 10 PM PDT             2.9            367         -              Normal
  06/07/2021 11 PM PDT             2.9            364         -              Normal
  06/08/2021 12 AM PDT             2.9            361         -              Normal
  06/08/2021 01 AM PDT             2.9            358         -              Normal
  06/08/2021 02 AM PDT             2.9            354         -              Normal
  06/08/2021 03 AM PDT             2.9            358         +              Normal
  06/08/2021 04 AM PDT             2.9            351         -              Normal
  06/08/2021 05 AM PDT             2.8            348         -              Normal
  06/08/2021 06 AM PDT             2.8            345         -              Normal
  06/08/2021 07 AM PDT             2.8            342         -              Normal
  06/08/2021 08 AM PDT             2.8            345         +              Normal
  06/08/2021 09 AM PDT             2.8            345         0              Normal
  06/08/2021 10 AM PDT             2.8            348         +              Normal
  06/08/2021 11 AM PDT             2.8            345         -              Normal
  06/08/2021 12 PM PDT             2.8            339         -              Normal
  06/08/2021 01 PM PDT             2.8            339         0              Normal
  06/08/2021 02 PM PDT             2.8            339         0              Normal
  06/08/2021 03 PM PDT             2.8            335         -              Normal
  06/08/2021 04 PM PDT             2.8            329         -              Normal
  06/08/2021 05 PM PDT             2.8            329         0              Normal
  06/08/2021 06 PM PDT             2.8            326         -              Normal
  06/08/2021 07 PM PDT             2.8            323         -              Normal
  06/08/2021 08 PM PDT             2.8            320         -              Normal
  06/08/2021 09 PM PDT             2.7            317         -              Normal
  06/08/2021 10 PM PDT             2.7            314         -              Normal
  06/08/2021 11 PM PDT             2.7            311         -              Normal
  06/09/2021 12 AM PDT             2.7            305         -              Normal
  06/09/2021 01 AM PDT             2.7            305         0              Normal
  06/09/2021 02 AM PDT             2.7            302         -              Normal
  06/09/2021 03 AM PDT             2.7            297         -              Normal
  06/09/2021 04 AM PDT             2.6            291         -              Normal
  06/09/2021 05 AM PDT             2.6            291         0              Normal
  06/09/2021 06 AM PDT             2.6            288         -              Normal
  06/09/2021 07 AM PDT             2.6            285         -              Normal
  06/09/2021 08 AM PDT             2.6            285         0              Normal
  06/09/2021 09 AM PDT             2.6            283         -              Normal
  06/09/2021 10 AM PDT             2.6            280         -              Normal
  06/09/2021 11 AM PDT             2.6            274         -              Normal
  06/09/2021 12 PM PDT             2.6            277         +              Normal
  06/09/2021 01 PM PDT             2.6            272         -              Normal
  06/09/2021 02 PM PDT             2.6            269         -              Normal
  06/09/2021 03 PM PDT             2.6            269         0              Normal
  06/09/2021 04 PM PDT             2.6            266         -              Normal
  06/09/2021 05 PM PDT             2.5            264         -              Normal
  06/09/2021 06 PM PDT             2.5            261         -              Normal
  06/09/2021 07 PM PDT             2.5            258         -              Normal
  06/09/2021 08 PM PDT             2.5            253         -              Normal
  06/09/2021 09 PM PDT             2.5            250         -              Normal
  06/09/2021 10 PM PDT             2.5            250         0              Normal
  06/09/2021 11 PM PDT             2.5            248         -              Normal
  06/10/2021 12 AM PDT             2.5            243         -              Normal
  06/10/2021 01 AM PDT             2.5            243         0              Normal
  06/10/2021 02 AM PDT             2.5            238         -              Normal
  06/10/2021 03 AM PDT             2.5            238         0              Normal
  06/10/2021 04 AM PDT             2.4            235         -              Normal
  06/10/2021 05 AM PDT             2.4            233         -              Normal
  06/10/2021 06 AM PDT             2.4            230         -              Normal
  06/10/2021 07 AM PDT             2.4            228         -              Normal
  06/10/2021 08 AM PDT             2.4            228         0              Normal
  06/10/2021 09 AM PDT             2.4            226         -              Normal
  06/10/2021 10 AM PDT             2.4            223         -              Normal
  06/10/2021 11 AM PDT             2.4            221         -              Normal
  06/10/2021 12 PM PDT             2.4            221         0              Normal
  06/10/2021 01 PM PDT             2.4            218         -              Normal
  06/10/2021 02 PM PDT             2.4            214         -              Normal
  06/10/2021 03 PM PDT             2.4            214         0              Normal
  06/10/2021 04 PM PDT             2.4            214         0              Normal
  06/10/2021 05 PM PDT             2.3            209         -              Normal
  06/10/2021 06 PM PDT             2.3            209         0              Normal
  06/10/2021 07 PM PDT             2.3            209         0              Normal
  06/10/2021 08 PM PDT             2.3            207         -              Normal
  06/10/2021 09 PM PDT             2.3            202         -              Normal
  06/10/2021 10 PM PDT             2.3            202         0              Normal
  06/10/2021 11 PM PDT             2.3            200         -              Normal
  06/11/2021 12 AM PDT             2.3            198         -              Normal
  06/11/2021 01 AM PDT             2.3            198         0              Normal
  06/11/2021 02 AM PDT             2.3            195         -              Normal
  06/11/2021 03 AM PDT             2.3            193         -              Normal
  06/11/2021 04 AM PDT             2.3            193         0              Normal
  06/11/2021 05 AM PDT             2.2            191         -              Normal
  06/11/2021 06 AM PDT             2.2            188         -              Normal
  06/11/2021 07 AM PDT             2.2            188         0              Normal
  06/11/2021 08 AM PDT             2.2            188         0              Normal
  06/11/2021 09 AM PDT             2.2            186         -              Normal
  06/11/2021 10 AM PDT             2.2            184         -              Normal
  06/11/2021 11 AM PDT             2.2            184         0              Normal
  06/11/2021 12 PM PDT             2.2            181         -              Normal
  06/11/2021 01 PM PDT             2.2            181         0              Normal
  06/11/2021 02 PM PDT             2.2            179         -              Normal
  06/11/2021 03 PM PDT             2.2            179         0              Normal
  06/11/2021 04 PM PDT             2.2            177         -              Normal
  06/11/2021 05 PM PDT             2.2            177         0              Normal
  06/11/2021 06 PM PDT             2.2            175         -              Normal
  06/11/2021 07 PM PDT             2.2            173         -              Normal
  06/11/2021 08 PM PDT             2.2            173         0              Normal
  06/11/2021 09 PM PDT             2.2            173         0              Normal
  06/11/2021 10 PM PDT             2.2            173         0              Normal
  06/11/2021 11 PM PDT             2.2            171         -              Normal
  06/12/2021 12 AM PDT             2.1            168         -              Normal
  06/12/2021 01 AM PDT             2.1            168         0              Normal
  06/12/2021 02 AM PDT             2.1            166         -              Normal
  06/12/2021 03 AM PDT             2.1            166         0              Normal
  06/12/2021 04 AM PDT             2.1            166         0              Normal
  06/12/2021 05 AM PDT             2.1            164         -              Normal
  06/12/2021 06 AM PDT             2.1            164         0              Normal
  06/12/2021 07 AM PDT             2.1            162         -              Normal
#
# FORECAST
#
# Date & Time  (Local)    Stage (Feet)     Flow (cfs)     Trend     Forecast Status
# ---------------------------------------------------------------------------------
  06/12/2021 08 AM PDT             2.1            162                        Normal
  06/12/2021 09 AM PDT             2.1            160         -              Normal
  06/12/2021 10 AM PDT             2.1            160         0              Normal
  06/12/2021 11 AM PDT             2.1            158         -              Normal
  06/12/2021 12 PM PDT             2.1            158         0              Normal
  06/12/2021 01 PM PDT             2.1            156         -              Normal
  06/12/2021 02 PM PDT             2.1            154         -              Normal
  06/12/2021 03 PM PDT             2.1            154         0              Normal
  06/12/2021 04 PM PDT             2.1            154         0              Normal
  06/12/2021 05 PM PDT             2.1            152         -              Normal
  06/12/2021 06 PM PDT             2.1            154         +              Normal
  06/12/2021 07 PM PDT             2.1            156         +              Normal
  06/12/2021 08 PM PDT             2.1            160         +              Normal
  06/12/2021 09 PM PDT             2.1            162         +              Normal
  06/12/2021 10 PM PDT             2.1            164         +              Normal
  06/12/2021 11 PM PDT             2.1            166         +              Normal
  06/13/2021 12 AM PDT             2.1            166         0              Normal
  06/13/2021 01 AM PDT             2.1            166         0              Normal
  06/13/2021 02 AM PDT             2.1            168         +              Normal
  06/13/2021 03 AM PDT             2.1            168         0              Normal
  06/13/2021 04 AM PDT             2.1            168         0              Normal
  06/13/2021 05 AM PDT             2.1            168         0              Normal
  06/13/2021 06 AM PDT             2.1            168         0              Normal
  06/13/2021 07 AM PDT             2.1            166         -              Normal
  06/13/2021 08 AM PDT             2.1            164         -              Normal
  06/13/2021 09 AM PDT             2.1            162         -              Normal
  06/13/2021 10 AM PDT             2.1            160         -              Normal
  06/13/2021 11 AM PDT             2.1            160         0              Normal
  06/13/2021 12 PM PDT             2.1            158         -              Normal
  06/13/2021 01 PM PDT             2.1            156         -              Normal
  06/13/2021 02 PM PDT             2.1            154         -              Normal
  06/13/2021 03 PM PDT             2.1            152         -              Normal
  06/13/2021 04 PM PDT             2.1            152         0              Normal
  06/13/2021 05 PM PDT             2.1            154         +              Normal
  06/13/2021 06 PM PDT             2.1            156         +              Normal
  06/13/2021 07 PM PDT             2.1            158         +              Normal
  06/13/2021 08 PM PDT             2.1            164         +              Normal
  06/13/2021 09 PM PDT             2.1            166         +              Normal
  06/13/2021 10 PM PDT             2.2            171         +              Normal
  06/13/2021 11 PM PDT             2.2            175         +              Normal
  06/14/2021 12 AM PDT             2.2            177         +              Normal
  06/14/2021 01 AM PDT             2.2            179         +              Normal
  06/14/2021 02 AM PDT             2.2            181         +              Normal
  06/14/2021 03 AM PDT             2.2            184         +              Normal
  06/14/2021 04 AM PDT             2.2            186         +              Normal
  06/14/2021 05 AM PDT             2.2            188         +              Normal
  06/14/2021 06 AM PDT             2.2            188         0              Normal
  06/14/2021 07 AM PDT             2.2            188         0              Normal
  06/14/2021 08 AM PDT             2.2            188         0              Normal
  06/14/2021 09 AM PDT             2.2            188         0              Normal
  06/14/2021 10 AM PDT             2.2            188         0              Normal
  06/14/2021 11 AM PDT             2.2            188         0              Normal
  06/14/2021 12 PM PDT             2.2            186         -              Normal
  06/14/2021 01 PM PDT             2.2            188         +              Normal
  06/14/2021 02 PM PDT             2.2            188         0              Normal
  06/14/2021 03 PM PDT             2.2            188         0              Normal
  06/14/2021 04 PM PDT             2.2            191         +              Normal
  06/14/2021 05 PM PDT             2.3            193         +              Normal
  06/14/2021 06 PM PDT             2.3            198         +              Normal
  06/14/2021 07 PM PDT             2.3            204         +              Normal
  06/14/2021 08 PM PDT             2.3            209         +              Normal
  06/14/2021 09 PM PDT             2.4            216         +              Normal
  06/14/2021 10 PM PDT             2.4            221         +              Normal
  06/14/2021 11 PM PDT             2.4            226         +              Normal
  06/15/2021 12 AM PDT             2.4            230         +              Normal
  06/15/2021 01 AM PDT             2.4            230         0              Normal
  06/15/2021 02 AM PDT             2.4            233         +              Normal
  06/15/2021 03 AM PDT             2.4            235         +              Normal
  06/15/2021 04 AM PDT             2.4            235         0              Normal
  06/15/2021 05 AM PDT             2.4            235         0              Normal
  06/15/2021 06 AM PDT             2.4            235         0              Normal
  06/15/2021 07 AM PDT             2.4            233         -              Normal
  06/15/2021 08 AM PDT             2.4            230         -              Normal
  06/15/2021 09 AM PDT             2.4            230         0              Normal
  06/15/2021 10 AM PDT             2.4            228         -              Normal
  06/15/2021 11 AM PDT             2.4            226         -              Normal
  06/15/2021 12 PM PDT             2.4            223         -              Normal
  06/15/2021 01 PM PDT             2.4            223         0              Normal
  06/15/2021 02 PM PDT             2.4            223         0              Normal
  06/15/2021 03 PM PDT             2.4            223         0              Normal
  06/15/2021 04 PM PDT             2.4            226         +              Normal
  06/15/2021 05 PM PDT             2.4            228         +              Normal
  06/15/2021 06 PM PDT             2.4            233         +              Normal
  06/15/2021 07 PM PDT             2.5            238         +              Normal
  06/15/2021 08 PM PDT             2.5            245         +              Normal
  06/15/2021 09 PM PDT             2.5            250         +              Normal
  06/15/2021 10 PM PDT             2.5            256         +              Normal
  06/15/2021 11 PM PDT             2.5            261         +              Normal
  06/16/2021 12 AM PDT             2.5            264         +              Normal
  06/16/2021 01 AM PDT             2.6            266         +              Normal
  06/16/2021 02 AM PDT             2.6            266         0              Normal
  06/16/2021 03 AM PDT             2.6            269         +              Normal
  06/16/2021 04 AM PDT             2.6            269         0              Normal
  06/16/2021 05 AM PDT             2.6            266         -              Normal
  06/16/2021 06 AM PDT             2.6            266         0              Normal
  06/16/2021 07 AM PDT             2.5            264         -              Normal
  06/16/2021 08 AM PDT             2.5            261         -              Normal
  06/16/2021 09 AM PDT             2.5            258         -              Normal
  06/16/2021 10 AM PDT             2.5            256         -              Normal
  06/16/2021 11 AM PDT             2.5            253         -              Normal
  06/16/2021 12 PM PDT             2.5            250         -              Normal
  06/16/2021 01 PM PDT             2.5            250         0              Normal
  06/16/2021 02 PM PDT             2.5            248         -              Normal
  06/16/2021 03 PM PDT             2.5            248         0              Normal
  06/16/2021 04 PM PDT             2.5            250         +              Normal
  06/16/2021 05 PM PDT             2.5            250         0              Normal
  06/16/2021 06 PM PDT             2.5            256         +              Normal
  06/16/2021 07 PM PDT             2.5            261         +              Normal
  06/16/2021 08 PM PDT             2.6            269         +              Normal
  06/16/2021 09 PM PDT             2.6            274         +              Normal
  06/16/2021 10 PM PDT             2.6            280         +              Normal
  06/16/2021 11 PM PDT             2.6            285         +              Normal
  06/17/2021 12 AM PDT             2.6            288         +              Normal
  06/17/2021 01 AM PDT             2.6            291         +              Normal
  06/17/2021 02 AM PDT             2.6            291         0              Normal
  06/17/2021 03 AM PDT             2.6            291         0              Normal
  06/17/2021 04 AM PDT             2.6            291         0              Normal
  06/17/2021 05 AM PDT             2.6            291         0              Normal
#
# NOTE 1: Stages are rounded to the nearest tenth (.1) 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.