ARROYO DE LA LAGUNA - VERONA (ADLC1)
Latitude: 37.63º NLongitude: 121.88º WElevation: 280 Feet
Location: Alameda County in CaliforniaBulletin Group: Central CoastRiver Group: South Bay
Issuance Time: Dec 26 2025 at 2:25 PM PSTNext Issuance: Dec 27 2025 at 9:00 AM PST
Action/Monitor: N/A Minor Flood: 15.0 FeetModerate Flood: 17.0 FeetMajor Flood: N/A

# Tabular Observed and Forecast Hydrograph Information
#
# Location: Arroyo De La Laguna - Verona (ADLC1)
#
# File Generation Time:  12/26/2025 at 02:26 PM PST
# Data Interval:  1 Hour
#
# Most Recent Date & Time of Maximum Observed:  12/25/2025 at 10:00 PM PST
# Maximum Observed Stage:                       7.31 Feet
# Maximum Observed Flow:                        1360 cfs
#
# Earliest Date & Time of Maximum Forecast:     12/26/2025 at 10:00 PM PST
# Maximum Forecast Stage:                       3.04 Feet
# Maximum Forecast Flow:                        279 cfs
#
# OBSERVED
#
# Date & Time  (Local)    Stage (Feet)     Flow (cfs)     Trend     Observed Status
# ---------------------------------------------------------------------------------
  12/21/2025 02 PM PST            1.18             25                        Normal
  12/21/2025 03 PM PST            1.26             30         +              Normal
  12/21/2025 04 PM PST            1.33             34         +              Normal
  12/21/2025 05 PM PST            1.37             37         +              Normal
  12/21/2025 06 PM PST            1.39             38         +              Normal
  12/21/2025 07 PM PST            1.40             39         +              Normal
  12/21/2025 08 PM PST            1.40             39         0              Normal
  12/21/2025 09 PM PST            1.40             39         0              Normal
  12/21/2025 10 PM PST            1.37             37         -              Normal
  12/21/2025 11 PM PST            1.35             35         -              Normal
  12/22/2025 12 AM PST            1.34             35         -              Normal
  12/22/2025 01 AM PST            1.32             33         -              Normal
  12/22/2025 02 AM PST            1.30             32         -              Normal
  12/22/2025 03 AM PST            1.29             31         -              Normal
  12/22/2025 04 AM PST            1.27             30         -              Normal
  12/22/2025 05 AM PST            1.26             30         -              Normal
  12/22/2025 06 AM PST            1.24             29         -              Normal
  12/22/2025 07 AM PST            1.22             27         -              Normal
  12/22/2025 08 AM PST            1.20             26         -              Normal
  12/22/2025 09 AM PST            1.19             26         -              Normal
  12/22/2025 10 AM PST            1.17             25         -              Normal
  12/22/2025 11 AM PST            1.19             26         +              Normal
  12/22/2025 12 PM PST            1.30             32         +              Normal
  12/22/2025 01 PM PST            2.29            134         +              Normal
  12/22/2025 02 PM PST            2.63            192         +              Normal
  12/22/2025 03 PM PST            2.41            153         -              Normal
  12/22/2025 04 PM PST            2.21            123         -              Normal
  12/22/2025 05 PM PST            2.15            114         -              Normal
  12/22/2025 06 PM PST            2.17            117         +              Normal
  12/22/2025 07 PM PST            2.15            114         -              Normal
  12/22/2025 08 PM PST            2.10            108         -              Normal
  12/22/2025 09 PM PST            2.03             99         -              Normal
  12/22/2025 10 PM PST            1.93             87         -              Normal
  12/22/2025 11 PM PST            1.84             77         -              Normal
  12/23/2025 12 AM PST            1.76             69         -              Normal
  12/23/2025 01 AM PST            1.69             62         -              Normal
  12/23/2025 02 AM PST            1.62             56         -              Normal
  12/23/2025 03 AM PST            1.57             51         -              Normal
  12/23/2025 04 AM PST            1.52             47         -              Normal
  12/23/2025 05 AM PST            1.48             44         -              Normal
  12/23/2025 06 AM PST            1.45             42         -              Normal
  12/23/2025 07 AM PST            1.42             40         -              Normal
  12/23/2025 08 AM PST            1.39             38         -              Normal
  12/23/2025 09 AM PST            1.35             35         -              Normal
  12/23/2025 10 AM PST            1.32             33         -              Normal
  12/23/2025 11 AM PST            1.29             31         -              Normal
  12/23/2025 12 PM PST            1.27             30         -              Normal
  12/23/2025 01 PM PST            1.24             29         -              Normal
  12/23/2025 02 PM PST            1.21             27         -              Normal
  12/23/2025 03 PM PST            1.19             26         -              Normal
  12/23/2025 04 PM PST            1.17             25         -              Normal
  12/23/2025 05 PM PST            1.15             23         -              Normal
  12/23/2025 06 PM PST            1.14             23         -              Normal
  12/23/2025 07 PM PST            1.12             22         -              Normal
  12/23/2025 08 PM PST            1.11             21         -              Normal
  12/23/2025 09 PM PST            1.09             20         -              Normal
  12/23/2025 10 PM PST            1.09             20         0              Normal
  12/23/2025 11 PM PST            1.07             19         -              Normal
  12/24/2025 12 AM PST            1.07             19         0              Normal
  12/24/2025 01 AM PST            1.06             18         -              Normal
  12/24/2025 02 AM PST            1.05             18         -              Normal
  12/24/2025 03 AM PST            1.04             17         -              Normal
  12/24/2025 04 AM PST            1.04             17         0              Normal
  12/24/2025 05 AM PST            1.26             30         +              Normal
  12/24/2025 06 AM PST            2.47            163         +              Normal
  12/24/2025 07 AM PST            5.50            839         +              Normal
  12/24/2025 08 AM PST            5.43            822         -              Normal
  12/24/2025 09 AM PST            4.12            525         -              Normal
  12/24/2025 10 AM PST            3.37            359         -              Normal
  12/24/2025 11 AM PST            3.12            299         -              Normal
  12/24/2025 12 PM PST            2.96            261         -              Normal
  12/24/2025 01 PM PST            2.87            241         -              Normal
  12/24/2025 02 PM PST            2.80            226         -              Normal
  12/24/2025 03 PM PST            2.62            190         -              Normal
  12/24/2025 04 PM PST            2.44            158         -              Normal
  12/24/2025 05 PM PST            2.29            134         -              Normal
  12/24/2025 06 PM PST            2.18            118         -              Normal
  12/24/2025 07 PM PST            2.10            108         -              Normal
  12/24/2025 08 PM PST            2.04            100         -              Normal
  12/24/2025 09 PM PST            1.97             91         -              Normal
  12/24/2025 10 PM PST            1.91             84         -              Normal
  12/24/2025 11 PM PST            1.86             79         -              Normal
  12/25/2025 12 AM PST            1.84             77         -              Normal
  12/25/2025 01 AM PST            1.82             75         -              Normal
  12/25/2025 02 AM PST            1.85             78         +              Normal
  12/25/2025 03 AM PST            1.85             78         0              Normal
  12/25/2025 04 AM PST            1.95             89         +              Normal
  12/25/2025 05 AM PST            2.23            125         +              Normal
  12/25/2025 06 AM PST            3.25            330         +              Normal
  12/25/2025 07 AM PST            3.79            455         +              Normal
  12/25/2025 08 AM PST            3.69            434         -              Normal
  12/25/2025 09 AM PST            3.28            337         -              Normal
  12/25/2025 10 AM PST            3.00            270         -              Normal
  12/25/2025 11 AM PST            2.86            238         -              Normal
  12/25/2025 12 PM PST            2.82            230         -              Normal
  12/25/2025 01 PM PST            2.75            215         -              Normal
  12/25/2025 02 PM PST            2.66            198         -              Normal
  12/25/2025 03 PM PST            2.59            184         -              Normal
  12/25/2025 04 PM PST            2.54            175         -              Normal
  12/25/2025 05 PM PST            2.53            174         -              Normal
  12/25/2025 06 PM PST            2.58            183         +              Normal
  12/25/2025 07 PM PST            2.88            243         +              Normal
  12/25/2025 08 PM PST            4.58            626         +              Normal
  12/25/2025 09 PM PST            7.06           1268         +              Normal
  12/25/2025 10 PM PST            7.31           1360         +              Normal
  12/25/2025 11 PM PST            6.29           1032         -              Normal
  12/26/2025 12 AM PST            5.22            772         -              Normal
  12/26/2025 01 AM PST            4.76            666         -              Normal
  12/26/2025 02 AM PST            4.49            606         -              Normal
  12/26/2025 03 AM PST            4.19            540         -              Normal
  12/26/2025 04 AM PST            3.75            446         -              Normal
  12/26/2025 05 AM PST            3.36            356         -              Normal
  12/26/2025 06 AM PST            3.07            287         -              Normal
  12/26/2025 07 AM PST            2.89            245         -              Normal
  12/26/2025 08 AM PST            2.75            215         -              Normal
  12/26/2025 09 AM PST            2.64            194         -              Normal
  12/26/2025 10 AM PST            2.52            172         -              Normal
  12/26/2025 11 AM PST            2.40            152         -              Normal
  12/26/2025 12 PM PST            2.32            139         -              Normal
  12/26/2025 01 PM PST            2.25            128         -              Normal
#
# FORECAST
#
# Date & Time  (Local)    Stage (Feet)     Flow (cfs)     Trend     Forecast Status
# ---------------------------------------------------------------------------------
  12/26/2025 02 PM PST            2.19            120                        Normal
  12/26/2025 03 PM PST            2.19            120         0              Normal
  12/26/2025 04 PM PST            2.27            131         +              Normal
  12/26/2025 05 PM PST            2.44            158         +              Normal
  12/26/2025 06 PM PST            2.68            201         +              Normal
  12/26/2025 07 PM PST            2.85            236         +              Normal
  12/26/2025 08 PM PST            2.94            256         +              Normal
  12/26/2025 09 PM PST            3.00            270         +              Normal
  12/26/2025 10 PM PST            3.04            279         +              Normal
  12/26/2025 11 PM PST            3.00            270         -              Normal
  12/27/2025 12 AM PST            2.90            247         -              Normal
  12/27/2025 01 AM PST            2.77            219         -              Normal
  12/27/2025 02 AM PST            2.64            194         -              Normal
  12/27/2025 03 AM PST            2.50            168         -              Normal
  12/27/2025 04 AM PST            2.33            140         -              Normal
  12/27/2025 05 AM PST            2.20            121         -              Normal
  12/27/2025 06 AM PST            2.07            104         -              Normal
  12/27/2025 07 AM PST            1.95             89         -              Normal
  12/27/2025 08 AM PST            1.84             77         -              Normal
  12/27/2025 09 AM PST            1.73             66         -              Normal
  12/27/2025 10 AM PST            1.63             56         -              Normal
  12/27/2025 11 AM PST            1.54             49         -              Normal
  12/27/2025 12 PM PST            1.46             43         -              Normal
  12/27/2025 01 PM PST            1.39             38         -              Normal
  12/27/2025 02 PM PST            1.33             34         -              Normal
  12/27/2025 03 PM PST            1.28             31         -              Normal
  12/27/2025 04 PM PST            1.23             28         -              Normal
  12/27/2025 05 PM PST            1.19             26         -              Normal
  12/27/2025 06 PM PST            1.16             24         -              Normal
  12/27/2025 07 PM PST            1.13             22         -              Normal
  12/27/2025 08 PM PST            1.10             21         -              Normal
  12/27/2025 09 PM PST            1.07             19         -              Normal
  12/27/2025 10 PM PST            1.04             17         -              Normal
  12/27/2025 11 PM PST            1.02             17         -              Normal
  12/28/2025 12 AM PST            0.99             15         -              Normal
  12/28/2025 01 AM PST            0.97             14         -              Normal
  12/28/2025 02 AM PST            0.94             13         -              Normal
  12/28/2025 03 AM PST            0.93             13         -              Normal
  12/28/2025 04 AM PST            0.92             12         -              Normal
  12/28/2025 05 AM PST            0.91             12         -              Normal
  12/28/2025 06 AM PST            0.91             12         0              Normal
  12/28/2025 07 AM PST            0.90             12         -              Normal
  12/28/2025 08 AM PST            0.90             12         0              Normal
  12/28/2025 09 AM PST            0.90             12         0              Normal
  12/28/2025 10 AM PST            0.90             12         0              Normal
  12/28/2025 11 AM PST            0.89             11         -              Normal
  12/28/2025 12 PM PST            0.89             11         0              Normal
  12/28/2025 01 PM PST            0.89             11         0              Normal
  12/28/2025 02 PM PST            0.89             11         0              Normal
  12/28/2025 03 PM PST            0.89             11         0              Normal
  12/28/2025 04 PM PST            0.88             11         -              Normal
  12/28/2025 05 PM PST            0.88             11         0              Normal
  12/28/2025 06 PM PST            0.88             11         0              Normal
  12/28/2025 07 PM PST            0.88             11         0              Normal
  12/28/2025 08 PM PST            0.88             11         0              Normal
  12/28/2025 09 PM PST            0.88             11         0              Normal
  12/28/2025 10 PM PST            0.87             10         -              Normal
  12/28/2025 11 PM PST            0.87             10         0              Normal
  12/29/2025 12 AM PST            0.87             10         0              Normal
  12/29/2025 01 AM PST            0.87             10         0              Normal
  12/29/2025 02 AM PST            0.87             10         0              Normal
  12/29/2025 03 AM PST            0.87             10         0              Normal
  12/29/2025 04 AM PST            0.86             10         -              Normal
  12/29/2025 05 AM PST            0.86             10         0              Normal
  12/29/2025 06 AM PST            0.86             10         0              Normal
  12/29/2025 07 AM PST            0.86             10         0              Normal
  12/29/2025 08 AM PST            0.86             10         0              Normal
  12/29/2025 09 AM PST            0.86             10         0              Normal
  12/29/2025 10 AM PST            0.85             10         -              Normal
  12/29/2025 11 AM PST            0.85             10         0              Normal
  12/29/2025 12 PM PST            0.85             10         0              Normal
  12/29/2025 01 PM PST            0.85             10         0              Normal
  12/29/2025 02 PM PST            0.85             10         0              Normal
  12/29/2025 03 PM PST            0.85             10         0              Normal
  12/29/2025 04 PM PST            0.85             10         0              Normal
  12/29/2025 05 PM PST            0.84              9         -              Normal
  12/29/2025 06 PM PST            0.84              9         0              Normal
  12/29/2025 07 PM PST            0.84              9         0              Normal
  12/29/2025 08 PM PST            0.84              9         0              Normal
  12/29/2025 09 PM PST            0.84              9         0              Normal
  12/29/2025 10 PM PST            0.84              9         0              Normal
  12/29/2025 11 PM PST            0.84              9         0              Normal
  12/30/2025 12 AM PST            0.83              9         -              Normal
  12/30/2025 01 AM PST            0.83              9         0              Normal
  12/30/2025 02 AM PST            0.83              9         0              Normal
  12/30/2025 03 AM PST            0.83              9         0              Normal
  12/30/2025 04 AM PST            0.83              9         0              Normal
  12/30/2025 05 AM PST            0.83              9         0              Normal
  12/30/2025 06 AM PST            0.83              9         0              Normal
  12/30/2025 07 AM PST            0.82              9         -              Normal
  12/30/2025 08 AM PST            0.82              9         0              Normal
  12/30/2025 09 AM PST            0.82              9         0              Normal
  12/30/2025 10 AM PST            0.82              9         0              Normal
  12/30/2025 11 AM PST            0.82              9         0              Normal
  12/30/2025 12 PM PST            0.82              9         0              Normal
  12/30/2025 01 PM PST            0.82              9         0              Normal
  12/30/2025 02 PM PST            0.81              8         -              Normal
  12/30/2025 03 PM PST            0.81              8         0              Normal
  12/30/2025 04 PM PST            0.81              8         0              Normal
  12/30/2025 05 PM PST            0.81              8         0              Normal
  12/30/2025 06 PM PST            0.81              8         0              Normal
  12/30/2025 07 PM PST            0.81              8         0              Normal
  12/30/2025 08 PM PST            0.81              8         0              Normal
  12/30/2025 09 PM PST            0.81              8         0              Normal
  12/30/2025 10 PM PST            0.80              8         -              Normal
  12/30/2025 11 PM PST            0.80              8         0              Normal
  12/31/2025 12 AM PST            0.80              8         0              Normal
  12/31/2025 01 AM PST            0.80              8         0              Normal
  12/31/2025 02 AM PST            0.80              8         0              Normal
  12/31/2025 03 AM PST            0.80              8         0              Normal
  12/31/2025 04 AM PST            0.80              8         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.