ARROYO HONDO - SAN JOSE (AHOC1)
Latitude: 37.46º NLongitude: 121.77º WElevation: 784 FeetForecast Type: Unofficial Location
Location: Santa Clara County in CaliforniaBulletin Group: Central CoastRiver Group: South Bay
Issuance Time: Apr 20 2026 at 6:56 AM PDTNext Issuance: Apr 21 2026 at 9:00 AM PDT
Action/Monitor: N/A Minor Flood: N/A Moderate Flood: N/A Major Flood: N/A

# Tabular Observed and Forecast Hydrograph Information
#
# Location: Arroyo Hondo - San Jose (AHOC1)
#
# File Generation Time:  04/20/2026 at 06:58 AM PDT
# Data Interval:  1 Hour
#
# Most Recent Date & Time of Maximum Observed:  04/15/2026 at 09:00 AM PDT
# Maximum Observed Stage:                       3.34 Feet
# Maximum Observed Flow:                        20 cfs
#
# Earliest Date & Time of Maximum Forecast:     04/22/2026 at 03:00 AM PDT
# Maximum Forecast Stage:                       5.94 Feet
# Maximum Forecast Flow:                        398 cfs
#
# OBSERVED
#
# Date & Time  (Local)    Stage (Feet)     Flow (cfs)     Trend     Observed Status
# ---------------------------------------------------------------------------------
  04/15/2026 06 AM PDT            3.34             20                Not Applicable
  04/15/2026 07 AM PDT            3.34             20         0      Not Applicable
  04/15/2026 08 AM PDT            3.33             19         -      Not Applicable
  04/15/2026 09 AM PDT            3.34             20         +      Not Applicable
  04/15/2026 10 AM PDT            3.33             19         -      Not Applicable
  04/15/2026 11 AM PDT            3.33             19         0      Not Applicable
  04/15/2026 12 PM PDT            3.32             19         -      Not Applicable
  04/15/2026 01 PM PDT            3.32             19         0      Not Applicable
  04/15/2026 02 PM PDT            3.31             19         -      Not Applicable
  04/15/2026 03 PM PDT            3.31             19         0      Not Applicable
  04/15/2026 04 PM PDT            3.30             18         -      Not Applicable
  04/15/2026 05 PM PDT            3.30             18         0      Not Applicable
  04/15/2026 06 PM PDT            3.29             18         -      Not Applicable
  04/15/2026 07 PM PDT            3.29             18         0      Not Applicable
  04/15/2026 08 PM PDT            3.29             18         0      Not Applicable
  04/15/2026 09 PM PDT            3.28             17         -      Not Applicable
  04/15/2026 10 PM PDT            3.28             17         0      Not Applicable
  04/15/2026 11 PM PDT            3.28             17         0      Not Applicable
  04/16/2026 12 AM PDT            3.28             17         0      Not Applicable
  04/16/2026 01 AM PDT            3.27             17         -      Not Applicable
  04/16/2026 02 AM PDT            3.27             17         0      Not Applicable
  04/16/2026 03 AM PDT            3.27             17         0      Not Applicable
  04/16/2026 04 AM PDT            3.27             17         0      Not Applicable
  04/16/2026 05 AM PDT            3.26             16         -      Not Applicable
  04/16/2026 06 AM PDT            3.26             16         0      Not Applicable
  04/16/2026 07 AM PDT            3.26             16         0      Not Applicable
  04/16/2026 08 AM PDT            3.26             16         0      Not Applicable
  04/16/2026 09 AM PDT            3.25             16         -      Not Applicable
  04/16/2026 10 AM PDT            3.25             16         0      Not Applicable
  04/16/2026 11 AM PDT            3.25             16         0      Not Applicable
  04/16/2026 12 PM PDT            3.24             16         -      Not Applicable
  04/16/2026 01 PM PDT            3.23             15         -      Not Applicable
  04/16/2026 02 PM PDT            3.23             15         0      Not Applicable
  04/16/2026 03 PM PDT            3.23             15         0      Not Applicable
  04/16/2026 04 PM PDT            3.22             15         -      Not Applicable
  04/16/2026 05 PM PDT            3.22             15         0      Not Applicable
  04/16/2026 06 PM PDT            3.22             15         0      Not Applicable
  04/16/2026 07 PM PDT            3.21             14         -      Not Applicable
  04/16/2026 08 PM PDT            3.21             14         0      Not Applicable
  04/16/2026 09 PM PDT            3.21             14         0      Not Applicable
  04/16/2026 10 PM PDT            3.21             14         0      Not Applicable
  04/16/2026 11 PM PDT            3.21             14         0      Not Applicable
  04/17/2026 12 AM PDT            3.20             14         -      Not Applicable
  04/17/2026 01 AM PDT            3.20             14         0      Not Applicable
  04/17/2026 02 AM PDT            3.20             14         0      Not Applicable
  04/17/2026 03 AM PDT            3.20             14         0      Not Applicable
  04/17/2026 04 AM PDT            3.20             14         0      Not Applicable
  04/17/2026 05 AM PDT            3.20             14         0      Not Applicable
  04/17/2026 06 AM PDT            3.20             14         0      Not Applicable
  04/17/2026 07 AM PDT            3.19             14         -      Not Applicable
  04/17/2026 08 AM PDT            3.19             14         0      Not Applicable
  04/17/2026 09 AM PDT            3.19             14         0      Not Applicable
  04/17/2026 10 AM PDT            3.19             14         0      Not Applicable
  04/17/2026 11 AM PDT            3.18             13         -      Not Applicable
  04/17/2026 12 PM PDT            3.18             13         0      Not Applicable
  04/17/2026 01 PM PDT            3.18             13         0      Not Applicable
  04/17/2026 02 PM PDT            3.17             13         -      Not Applicable
  04/17/2026 03 PM PDT            3.17             13         0      Not Applicable
  04/17/2026 04 PM PDT            3.17             13         0      Not Applicable
  04/17/2026 05 PM PDT            3.16             13         -      Not Applicable
  04/17/2026 06 PM PDT            3.16             13         0      Not Applicable
  04/17/2026 07 PM PDT            3.16             13         0      Not Applicable
  04/17/2026 08 PM PDT            3.16             13         0      Not Applicable
  04/17/2026 09 PM PDT            3.16             13         0      Not Applicable
  04/17/2026 10 PM PDT            3.16             13         0      Not Applicable
  04/17/2026 11 PM PDT            3.16             13         0      Not Applicable
  04/18/2026 12 AM PDT            3.16             13         0      Not Applicable
  04/18/2026 01 AM PDT            3.16             13         0      Not Applicable
  04/18/2026 02 AM PDT            3.15             12         -      Not Applicable
  04/18/2026 03 AM PDT            3.15             12         0      Not Applicable
  04/18/2026 04 AM PDT            3.15             12         0      Not Applicable
  04/18/2026 05 AM PDT            3.15             12         0      Not Applicable
  04/18/2026 06 AM PDT            3.15             12         0      Not Applicable
  04/18/2026 07 AM PDT            3.15             12         0      Not Applicable
  04/18/2026 08 AM PDT            3.15             12         0      Not Applicable
  04/18/2026 09 AM PDT            3.15             12         0      Not Applicable
  04/18/2026 10 AM PDT            3.15             12         0      Not Applicable
  04/18/2026 11 AM PDT            3.15             12         0      Not Applicable
  04/18/2026 12 PM PDT            3.15             12         0      Not Applicable
  04/18/2026 01 PM PDT            3.14             12         -      Not Applicable
  04/18/2026 02 PM PDT            3.14             12         0      Not Applicable
  04/18/2026 03 PM PDT            3.13             12         -      Not Applicable
  04/18/2026 04 PM PDT            3.13             12         0      Not Applicable
  04/18/2026 05 PM PDT            3.13             12         0      Not Applicable
  04/18/2026 06 PM PDT            3.13             12         0      Not Applicable
  04/18/2026 07 PM PDT            3.12             11         -      Not Applicable
  04/18/2026 08 PM PDT            3.12             11         0      Not Applicable
  04/18/2026 09 PM PDT            3.12             11         0      Not Applicable
  04/18/2026 10 PM PDT            3.12             11         0      Not Applicable
  04/18/2026 11 PM PDT            3.12             11         0      Not Applicable
  04/19/2026 12 AM PDT            3.12             11         0      Not Applicable
  04/19/2026 01 AM PDT            3.12             11         0      Not Applicable
  04/19/2026 02 AM PDT            3.12             11         0      Not Applicable
  04/19/2026 03 AM PDT            3.12             11         0      Not Applicable
  04/19/2026 04 AM PDT            3.12             11         0      Not Applicable
  04/19/2026 05 AM PDT            3.12             11         0      Not Applicable
  04/19/2026 06 AM PDT            3.12             11         0      Not Applicable
  04/19/2026 07 AM PDT            3.12             11         0      Not Applicable
  04/19/2026 08 AM PDT            3.12             11         0      Not Applicable
  04/19/2026 09 AM PDT            3.12             11         0      Not Applicable
  04/19/2026 10 AM PDT            3.12             11         0      Not Applicable
  04/19/2026 11 AM PDT            3.12             11         0      Not Applicable
  04/19/2026 12 PM PDT            3.12             11         0      Not Applicable
  04/19/2026 01 PM PDT            3.11             11         -      Not Applicable
  04/19/2026 02 PM PDT            3.11             11         0      Not Applicable
  04/19/2026 03 PM PDT            3.11             11         0      Not Applicable
  04/19/2026 04 PM PDT            3.10             11         -      Not Applicable
  04/19/2026 05 PM PDT            3.10             11         0      Not Applicable
  04/19/2026 06 PM PDT            3.10             11         0      Not Applicable
  04/19/2026 07 PM PDT            3.10             11         0      Not Applicable
  04/19/2026 08 PM PDT            3.10             11         0      Not Applicable
  04/19/2026 09 PM PDT            3.10             11         0      Not Applicable
  04/19/2026 10 PM PDT            3.10             11         0      Not Applicable
  04/19/2026 11 PM PDT            3.10             11         0      Not Applicable
  04/20/2026 12 AM PDT            3.10             11         0      Not Applicable
  04/20/2026 01 AM PDT            3.10             11         0      Not Applicable
  04/20/2026 02 AM PDT            3.10             11         0      Not Applicable
  04/20/2026 03 AM PDT            3.10             11         0      Not Applicable
  04/20/2026 04 AM PDT            3.10             11         0      Not Applicable
  04/20/2026 05 AM PDT            3.10             11         0      Not Applicable
  04/20/2026 06 AM PDT            3.10             11         0      Not Applicable
#
# FORECAST
#
# Date & Time  (Local)    Stage (Feet)     Flow (cfs)     Trend     Forecast Status
# ---------------------------------------------------------------------------------
  04/20/2026 07 AM PDT            3.10             11                Not Applicable
  04/20/2026 08 AM PDT            3.10             11         0      Not Applicable
  04/20/2026 09 AM PDT            3.10             11         0      Not Applicable
  04/20/2026 10 AM PDT            3.10             11         0      Not Applicable
  04/20/2026 11 AM PDT            3.10             11         0      Not Applicable
  04/20/2026 12 PM PDT            3.09             10         -      Not Applicable
  04/20/2026 01 PM PDT            3.09             10         0      Not Applicable
  04/20/2026 02 PM PDT            3.09             10         0      Not Applicable
  04/20/2026 03 PM PDT            3.09             10         0      Not Applicable
  04/20/2026 04 PM PDT            3.09             10         0      Not Applicable
  04/20/2026 05 PM PDT            3.09             10         0      Not Applicable
  04/20/2026 06 PM PDT            3.09             10         0      Not Applicable
  04/20/2026 07 PM PDT            3.09             10         0      Not Applicable
  04/20/2026 08 PM PDT            3.08             10         -      Not Applicable
  04/20/2026 09 PM PDT            3.08             10         0      Not Applicable
  04/20/2026 10 PM PDT            3.08             10         0      Not Applicable
  04/20/2026 11 PM PDT            3.08             10         0      Not Applicable
  04/21/2026 12 AM PDT            3.08             10         0      Not Applicable
  04/21/2026 01 AM PDT            3.08             10         0      Not Applicable
  04/21/2026 02 AM PDT            3.08             10         0      Not Applicable
  04/21/2026 03 AM PDT            3.08             10         0      Not Applicable
  04/21/2026 04 AM PDT            3.08             10         0      Not Applicable
  04/21/2026 05 AM PDT            3.11             11         +      Not Applicable
  04/21/2026 06 AM PDT            3.16             13         +      Not Applicable
  04/21/2026 07 AM PDT            3.26             16         +      Not Applicable
  04/21/2026 08 AM PDT            3.43             24         +      Not Applicable
  04/21/2026 09 AM PDT            3.73             43         +      Not Applicable
  04/21/2026 10 AM PDT            4.12             76         +      Not Applicable
  04/21/2026 11 AM PDT            4.54            125         +      Not Applicable
  04/21/2026 12 PM PDT            4.92            184         +      Not Applicable
  04/21/2026 01 PM PDT            5.27            250         +      Not Applicable
  04/21/2026 02 PM PDT            5.51            299         +      Not Applicable
  04/21/2026 03 PM PDT            5.63            325         +      Not Applicable
  04/21/2026 04 PM PDT            5.68            336         +      Not Applicable
  04/21/2026 05 PM PDT            5.68            336         0      Not Applicable
  04/21/2026 06 PM PDT            5.65            330         -      Not Applicable
  04/21/2026 07 PM PDT            5.62            323         -      Not Applicable
  04/21/2026 08 PM PDT            5.61            321         -      Not Applicable
  04/21/2026 09 PM PDT            5.62            323         +      Not Applicable
  04/21/2026 10 PM PDT            5.68            336         +      Not Applicable
  04/21/2026 11 PM PDT            5.76            355         +      Not Applicable
  04/22/2026 12 AM PDT            5.83            371         +      Not Applicable
  04/22/2026 01 AM PDT            5.88            383         +      Not Applicable
  04/22/2026 02 AM PDT            5.92            393         +      Not Applicable
  04/22/2026 03 AM PDT            5.94            398         +      Not Applicable
  04/22/2026 04 AM PDT            5.93            396         -      Not Applicable
  04/22/2026 05 AM PDT            5.92            393         -      Not Applicable
  04/22/2026 06 AM PDT            5.90            388         -      Not Applicable
  04/22/2026 07 AM PDT            5.88            383         -      Not Applicable
  04/22/2026 08 AM PDT            5.85            376         -      Not Applicable
  04/22/2026 09 AM PDT            5.80            364         -      Not Applicable
  04/22/2026 10 AM PDT            5.74            350         -      Not Applicable
  04/22/2026 11 AM PDT            5.67            334         -      Not Applicable
  04/22/2026 12 PM PDT            5.59            316         -      Not Applicable
  04/22/2026 01 PM PDT            5.52            301         -      Not Applicable
  04/22/2026 02 PM PDT            5.45            286         -      Not Applicable
  04/22/2026 03 PM PDT            5.37            270         -      Not Applicable
  04/22/2026 04 PM PDT            5.29            254         -      Not Applicable
  04/22/2026 05 PM PDT            5.21            238         -      Not Applicable
  04/22/2026 06 PM PDT            5.12            220         -      Not Applicable
  04/22/2026 07 PM PDT            5.04            205         -      Not Applicable
  04/22/2026 08 PM PDT            4.97            193         -      Not Applicable
  04/22/2026 09 PM PDT            4.92            184         -      Not Applicable
  04/22/2026 10 PM PDT            4.87            175         -      Not Applicable
  04/22/2026 11 PM PDT            4.82            167         -      Not Applicable
  04/23/2026 12 AM PDT            4.77            159         -      Not Applicable
  04/23/2026 01 AM PDT            4.72            151         -      Not Applicable
  04/23/2026 02 AM PDT            4.67            144         -      Not Applicable
  04/23/2026 03 AM PDT            4.63            138         -      Not Applicable
  04/23/2026 04 AM PDT            4.59            132         -      Not Applicable
  04/23/2026 05 AM PDT            4.55            127         -      Not Applicable
  04/23/2026 06 AM PDT            4.51            121         -      Not Applicable
  04/23/2026 07 AM PDT            4.47            116         -      Not Applicable
  04/23/2026 08 AM PDT            4.44            112         -      Not Applicable
  04/23/2026 09 AM PDT            4.41            109         -      Not Applicable
  04/23/2026 10 AM PDT            4.38            105         -      Not Applicable
  04/23/2026 11 AM PDT            4.35            101         -      Not Applicable
  04/23/2026 12 PM PDT            4.32             98         -      Not Applicable
  04/23/2026 01 PM PDT            4.30             96         -      Not Applicable
  04/23/2026 02 PM PDT            4.28             93         -      Not Applicable
  04/23/2026 03 PM PDT            4.26             91         -      Not Applicable
  04/23/2026 04 PM PDT            4.24             89         -      Not Applicable
  04/23/2026 05 PM PDT            4.22             87         -      Not Applicable
  04/23/2026 06 PM PDT            4.21             86         -      Not Applicable
  04/23/2026 07 PM PDT            4.19             83         -      Not Applicable
  04/23/2026 08 PM PDT            4.17             81         -      Not Applicable
  04/23/2026 09 PM PDT            4.16             80         -      Not Applicable
  04/23/2026 10 PM PDT            4.14             78         -      Not Applicable
  04/23/2026 11 PM PDT            4.13             77         -      Not Applicable
  04/24/2026 12 AM PDT            4.12             76         -      Not Applicable
  04/24/2026 01 AM PDT            4.11             75         -      Not Applicable
  04/24/2026 02 AM PDT            4.09             73         -      Not Applicable
  04/24/2026 03 AM PDT            4.08             72         -      Not Applicable
  04/24/2026 04 AM PDT            4.07             71         -      Not Applicable
  04/24/2026 05 AM PDT            4.06             70         -      Not Applicable
  04/24/2026 06 AM PDT            4.05             69         -      Not Applicable
  04/24/2026 07 AM PDT            4.04             68         -      Not Applicable
  04/24/2026 08 AM PDT            4.03             67         -      Not Applicable
  04/24/2026 09 AM PDT            4.02             66         -      Not Applicable
  04/24/2026 10 AM PDT            4.01             66         -      Not Applicable
  04/24/2026 11 AM PDT            4.01             66         0      Not Applicable
  04/24/2026 12 PM PDT            4.00             65         -      Not Applicable
  04/24/2026 01 PM PDT            3.99             64         -      Not Applicable
  04/24/2026 02 PM PDT            3.98             63         -      Not Applicable
  04/24/2026 03 PM PDT            3.98             63         0      Not Applicable
  04/24/2026 04 PM PDT            3.97             62         -      Not Applicable
  04/24/2026 05 PM PDT            3.96             61         -      Not Applicable
  04/24/2026 06 PM PDT            3.95             60         -      Not Applicable
  04/24/2026 07 PM PDT            3.95             60         0      Not Applicable
  04/24/2026 08 PM PDT            3.94             59         -      Not Applicable
  04/24/2026 09 PM PDT            3.93             58         -      Not Applicable
  04/24/2026 10 PM PDT            3.93             58         0      Not Applicable
  04/24/2026 11 PM PDT            3.92             58         -      Not Applicable
  04/25/2026 12 AM PDT            3.91             57         -      Not Applicable
  04/25/2026 01 AM PDT            3.91             57         0      Not Applicable
  04/25/2026 02 AM PDT            3.90             56         -      Not Applicable
  04/25/2026 03 AM PDT            3.90             56         0      Not Applicable
  04/25/2026 04 AM PDT            3.89             55         -      Not Applicable
  04/25/2026 05 AM PDT            3.88             54         -      Not Applicable
#
# 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.