National Weather Service California Nevada River Forecast Center Department of Commerce National Oceanic and Atmospheric Administration National Weather Service

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ARROYO DE LA LAGUNA - VERONA (ADLC1)
Latitude: 37.63º NLongitude: 121.88º WElevation: 280 FeetForecast Type: Unofficial Location
Location: Alameda County in CaliforniaBulletin Group: Central CoastRiver Group: South Bay
Issuance Time: Apr 30 2026 at 7:54 AM PDTNext Issuance: May 01 2026 at 9:00 AM PDT
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:  04/30/2026 at 07:55 AM PDT
# Data Interval:  1 Hour
#
# Most Recent Date & Time of Maximum Observed:  04/25/2026 at 07:00 AM PDT
# Maximum Observed Stage:                       1.17 Feet
# Maximum Observed Flow:                        23 cfs
#
# Earliest Date & Time of Maximum Forecast:     05/05/2026 at 05:00 AM PDT
# Maximum Forecast Stage:                       1.01 Feet
# Maximum Forecast Flow:                        15 cfs
#
# OBSERVED
#
# Date & Time  (Local)    Stage (Feet)     Flow (cfs)     Trend     Observed Status
# ---------------------------------------------------------------------------------
  04/25/2026 07 AM PDT            1.17             23                        Normal
  04/25/2026 08 AM PDT            1.16             23         -              Normal
  04/25/2026 09 AM PDT            1.16             23         0              Normal
  04/25/2026 10 AM PDT            1.16             23         0              Normal
  04/25/2026 11 AM PDT            1.15             22         -              Normal
  04/25/2026 12 PM PDT            1.15             22         0              Normal
  04/25/2026 01 PM PDT            1.15             22         0              Normal
  04/25/2026 02 PM PDT            1.15             22         0              Normal
  04/25/2026 03 PM PDT            1.15             22         0              Normal
  04/25/2026 04 PM PDT            1.16             23         +              Normal
  04/25/2026 05 PM PDT            1.16             23         0              Normal
  04/25/2026 06 PM PDT            1.15             22         -              Normal
  04/25/2026 07 PM PDT            1.15             22         0              Normal
  04/25/2026 08 PM PDT            1.14             22         -              Normal
  04/25/2026 09 PM PDT            1.13             21         -              Normal
  04/25/2026 10 PM PDT            1.12             21         -              Normal
  04/25/2026 11 PM PDT            1.12             21         0              Normal
  04/26/2026 12 AM PDT            1.11             20         -              Normal
  04/26/2026 01 AM PDT            1.11             20         0              Normal
  04/26/2026 02 AM PDT            1.11             20         0              Normal
  04/26/2026 03 AM PDT            1.11             20         0              Normal
  04/26/2026 04 AM PDT            1.11             20         0              Normal
  04/26/2026 05 AM PDT            1.11             20         0              Normal
  04/26/2026 06 AM PDT            1.12             21         +              Normal
  04/26/2026 07 AM PDT            1.13             21         +              Normal
  04/26/2026 08 AM PDT            1.13             21         0              Normal
  04/26/2026 09 AM PDT            1.13             21         0              Normal
  04/26/2026 10 AM PDT            1.12             21         -              Normal
  04/26/2026 11 AM PDT            1.12             21         0              Normal
  04/26/2026 12 PM PDT            1.12             21         0              Normal
  04/26/2026 01 PM PDT            1.12             21         0              Normal
  04/26/2026 02 PM PDT            1.12             21         0              Normal
  04/26/2026 03 PM PDT            1.12             21         0              Normal
  04/26/2026 04 PM PDT            1.11             20         -              Normal
  04/26/2026 05 PM PDT            1.11             20         0              Normal
  04/26/2026 06 PM PDT            1.10             19         -              Normal
  04/26/2026 07 PM PDT            1.10             19         0              Normal
  04/26/2026 08 PM PDT            1.11             20         +              Normal
  04/26/2026 09 PM PDT            1.11             20         0              Normal
  04/26/2026 10 PM PDT            1.11             20         0              Normal
  04/26/2026 11 PM PDT            1.11             20         0              Normal
  04/27/2026 12 AM PDT            1.10             19         -              Normal
  04/27/2026 01 AM PDT            1.09             19         -              Normal
  04/27/2026 02 AM PDT            1.09             19         0              Normal
  04/27/2026 03 AM PDT            1.09             19         0              Normal
  04/27/2026 04 AM PDT            1.08             18         -              Normal
  04/27/2026 05 AM PDT            1.08             18         0              Normal
  04/27/2026 06 AM PDT            1.08             18         0              Normal
  04/27/2026 07 AM PDT            1.08             18         0              Normal
  04/27/2026 08 AM PDT            1.08             18         0              Normal
  04/27/2026 09 AM PDT            1.08             18         0              Normal
  04/27/2026 10 AM PDT            1.08             18         0              Normal
  04/27/2026 11 AM PDT            1.09             19         +              Normal
  04/27/2026 12 PM PDT            1.09             19         0              Normal
  04/27/2026 01 PM PDT            1.09             19         0              Normal
  04/27/2026 02 PM PDT            1.09             19         0              Normal
  04/27/2026 03 PM PDT            1.09             19         0              Normal
  04/27/2026 04 PM PDT            1.08             18         -              Normal
  04/27/2026 05 PM PDT            1.07             18         -              Normal
  04/27/2026 06 PM PDT            1.07             18         0              Normal
  04/27/2026 07 PM PDT            1.06             17         -              Normal
  04/27/2026 08 PM PDT            1.06             17         0              Normal
  04/27/2026 09 PM PDT            1.05             17         -              Normal
  04/27/2026 10 PM PDT            1.05             17         0              Normal
  04/27/2026 11 PM PDT            1.04             17         -              Normal
  04/28/2026 12 AM PDT            1.04             17         0              Normal
  04/28/2026 01 AM PDT            1.04             17         0              Normal
  04/28/2026 02 AM PDT            1.04             17         0              Normal
  04/28/2026 03 AM PDT            1.04             17         0              Normal
  04/28/2026 04 AM PDT            1.05             17         +              Normal
  04/28/2026 05 AM PDT            1.05             17         0              Normal
  04/28/2026 06 AM PDT            1.05             17         0              Normal
  04/28/2026 07 AM PDT            1.05             17         0              Normal
  04/28/2026 08 AM PDT            1.04             17         -              Normal
  04/28/2026 09 AM PDT            1.04             17         0              Normal
  04/28/2026 10 AM PDT            1.04             17         0              Normal
  04/28/2026 11 AM PDT            1.04             17         0              Normal
  04/28/2026 12 PM PDT            1.03             16         -              Normal
  04/28/2026 01 PM PDT            1.03             16         0              Normal
  04/28/2026 02 PM PDT            1.03             16         0              Normal
  04/28/2026 03 PM PDT            1.03             16         0              Normal
  04/28/2026 04 PM PDT            1.04             17         +              Normal
  04/28/2026 05 PM PDT            1.05             17         +              Normal
  04/28/2026 06 PM PDT            1.05             17         0              Normal
  04/28/2026 07 PM PDT            1.04             17         -              Normal
  04/28/2026 08 PM PDT            1.04             17         0              Normal
  04/28/2026 09 PM PDT            1.04             17         0              Normal
  04/28/2026 10 PM PDT            1.04             17         0              Normal
  04/28/2026 11 PM PDT            1.04             17         0              Normal
  04/29/2026 12 AM PDT            1.03             16         -              Normal
  04/29/2026 01 AM PDT            1.02             16         -              Normal
  04/29/2026 02 AM PDT            1.01             15         -              Normal
  04/29/2026 03 AM PDT            1.01             15         0              Normal
  04/29/2026 04 AM PDT            1.00             15         -              Normal
  04/29/2026 05 AM PDT            1.00             15         0              Normal
  04/29/2026 06 AM PDT            1.00             15         0              Normal
  04/29/2026 07 AM PDT            1.00             15         0              Normal
  04/29/2026 08 AM PDT            1.00             15         0              Normal
  04/29/2026 09 AM PDT            1.00             15         0              Normal
  04/29/2026 10 AM PDT            1.00             15         0              Normal
  04/29/2026 11 AM PDT            1.00             15         0              Normal
  04/29/2026 12 PM PDT            1.00             15         0              Normal
  04/29/2026 01 PM PDT            1.00             15         0              Normal
  04/29/2026 02 PM PDT            1.01             15         +              Normal
  04/29/2026 03 PM PDT            1.01             15         0              Normal
  04/29/2026 04 PM PDT            1.02             16         +              Normal
  04/29/2026 05 PM PDT            1.02             16         0              Normal
  04/29/2026 06 PM PDT            1.02             16         0              Normal
  04/29/2026 07 PM PDT            1.01             15         -              Normal
  04/29/2026 08 PM PDT            1.00             15         -              Normal
  04/29/2026 09 PM PDT            0.99             14         -              Normal
  04/29/2026 10 PM PDT            0.99             14         0              Normal
  04/29/2026 11 PM PDT            0.98             14         -              Normal
  04/30/2026 12 AM PDT            0.97             13         -              Normal
  04/30/2026 01 AM PDT            0.97             13         0              Normal
  04/30/2026 02 AM PDT            0.97             13         0              Normal
  04/30/2026 03 AM PDT            0.97             13         0              Normal
  04/30/2026 04 AM PDT            0.97             13         0              Normal
  04/30/2026 05 AM PDT            0.98             14         +              Normal
  04/30/2026 06 AM PDT            0.98             14         0              Normal
  04/30/2026 07 AM PDT            0.98             14         0              Normal
#
# FORECAST
#
# Date & Time  (Local)    Stage (Feet)     Flow (cfs)     Trend     Forecast Status
# ---------------------------------------------------------------------------------
  04/30/2026 08 AM PDT            0.98             14                        Normal
  04/30/2026 09 AM PDT            0.97             13         -              Normal
  04/30/2026 10 AM PDT            0.97             13         0              Normal
  04/30/2026 11 AM PDT            0.97             13         0              Normal
  04/30/2026 12 PM PDT            0.97             13         0              Normal
  04/30/2026 01 PM PDT            0.96             13         -              Normal
  04/30/2026 02 PM PDT            0.96             13         0              Normal
  04/30/2026 03 PM PDT            0.96             13         0              Normal
  04/30/2026 04 PM PDT            0.95             13         -              Normal
  04/30/2026 05 PM PDT            0.95             13         0              Normal
  04/30/2026 06 PM PDT            0.95             13         0              Normal
  04/30/2026 07 PM PDT            0.95             13         0              Normal
  04/30/2026 08 PM PDT            0.94             12         -              Normal
  04/30/2026 09 PM PDT            0.94             12         0              Normal
  04/30/2026 10 PM PDT            0.94             12         0              Normal
  04/30/2026 11 PM PDT            0.94             12         0              Normal
  05/01/2026 12 AM PDT            0.93             12         -              Normal
  05/01/2026 01 AM PDT            0.93             12         0              Normal
  05/01/2026 02 AM PDT            0.93             12         0              Normal
  05/01/2026 03 AM PDT            0.92             12         -              Normal
  05/01/2026 04 AM PDT            0.92             12         0              Normal
  05/01/2026 05 AM PDT            0.92             12         0              Normal
  05/01/2026 06 AM PDT            0.92             12         0              Normal
  05/01/2026 07 AM PDT            0.91             11         -              Normal
  05/01/2026 08 AM PDT            0.91             11         0              Normal
  05/01/2026 09 AM PDT            0.91             11         0              Normal
  05/01/2026 10 AM PDT            0.90             11         -              Normal
  05/01/2026 11 AM PDT            0.90             11         0              Normal
  05/01/2026 12 PM PDT            0.90             11         0              Normal
  05/01/2026 01 PM PDT            0.90             11         0              Normal
  05/01/2026 02 PM PDT            0.89             10         -              Normal
  05/01/2026 03 PM PDT            0.89             10         0              Normal
  05/01/2026 04 PM PDT            0.89             10         0              Normal
  05/01/2026 05 PM PDT            0.88             10         -              Normal
  05/01/2026 06 PM PDT            0.88             10         0              Normal
  05/01/2026 07 PM PDT            0.88             10         0              Normal
  05/01/2026 08 PM PDT            0.87             10         -              Normal
  05/01/2026 09 PM PDT            0.87             10         0              Normal
  05/01/2026 10 PM PDT            0.87             10         0              Normal
  05/01/2026 11 PM PDT            0.86              9         -              Normal
  05/02/2026 12 AM PDT            0.86              9         0              Normal
  05/02/2026 01 AM PDT            0.86              9         0              Normal
  05/02/2026 02 AM PDT            0.85              9         -              Normal
  05/02/2026 03 AM PDT            0.85              9         0              Normal
  05/02/2026 04 AM PDT            0.85              9         0              Normal
  05/02/2026 05 AM PDT            0.84              9         -              Normal
  05/02/2026 06 AM PDT            0.84              9         0              Normal
  05/02/2026 07 AM PDT            0.84              9         0              Normal
  05/02/2026 08 AM PDT            0.84              9         0              Normal
  05/02/2026 09 AM PDT            0.83              8         -              Normal
  05/02/2026 10 AM PDT            0.83              8         0              Normal
  05/02/2026 11 AM PDT            0.83              8         0              Normal
  05/02/2026 12 PM PDT            0.83              8         0              Normal
  05/02/2026 01 PM PDT            0.83              8         0              Normal
  05/02/2026 02 PM PDT            0.83              8         0              Normal
  05/02/2026 03 PM PDT            0.83              8         0              Normal
  05/02/2026 04 PM PDT            0.83              8         0              Normal
  05/02/2026 05 PM PDT            0.83              8         0              Normal
  05/02/2026 06 PM PDT            0.83              8         0              Normal
  05/02/2026 07 PM PDT            0.83              8         0              Normal
  05/02/2026 08 PM PDT            0.83              8         0              Normal
  05/02/2026 09 PM PDT            0.83              8         0              Normal
  05/02/2026 10 PM PDT            0.83              8         0              Normal
  05/02/2026 11 PM PDT            0.82              8         -              Normal
  05/03/2026 12 AM PDT            0.82              8         0              Normal
  05/03/2026 01 AM PDT            0.82              8         0              Normal
  05/03/2026 02 AM PDT            0.82              8         0              Normal
  05/03/2026 03 AM PDT            0.82              8         0              Normal
  05/03/2026 04 AM PDT            0.82              8         0              Normal
  05/03/2026 05 AM PDT            0.82              8         0              Normal
  05/03/2026 06 AM PDT            0.82              8         0              Normal
  05/03/2026 07 AM PDT            0.82              8         0              Normal
  05/03/2026 08 AM PDT            0.82              8         0              Normal
  05/03/2026 09 AM PDT            0.82              8         0              Normal
  05/03/2026 10 AM PDT            0.82              8         0              Normal
  05/03/2026 11 AM PDT            0.81              8         -              Normal
  05/03/2026 12 PM PDT            0.81              8         0              Normal
  05/03/2026 01 PM PDT            0.81              8         0              Normal
  05/03/2026 02 PM PDT            0.81              8         0              Normal
  05/03/2026 03 PM PDT            0.81              8         0              Normal
  05/03/2026 04 PM PDT            0.81              8         0              Normal
  05/03/2026 05 PM PDT            0.81              8         0              Normal
  05/03/2026 06 PM PDT            0.81              8         0              Normal
  05/03/2026 07 PM PDT            0.81              8         0              Normal
  05/03/2026 08 PM PDT            0.81              8         0              Normal
  05/03/2026 09 PM PDT            0.81              8         0              Normal
  05/03/2026 10 PM PDT            0.81              8         0              Normal
  05/03/2026 11 PM PDT            0.81              8         0              Normal
  05/04/2026 12 AM PDT            0.81              8         0              Normal
  05/04/2026 01 AM PDT            0.80              8         -              Normal
  05/04/2026 02 AM PDT            0.80              8         0              Normal
  05/04/2026 03 AM PDT            0.80              8         0              Normal
  05/04/2026 04 AM PDT            0.80              8         0              Normal
  05/04/2026 05 AM PDT            0.80              8         0              Normal
  05/04/2026 06 AM PDT            0.80              8         0              Normal
  05/04/2026 07 AM PDT            0.80              8         0              Normal
  05/04/2026 08 AM PDT            0.80              8         0              Normal
  05/04/2026 09 AM PDT            0.80              8         0              Normal
  05/04/2026 10 AM PDT            0.80              8         0              Normal
  05/04/2026 11 AM PDT            0.80              8         0              Normal
  05/04/2026 12 PM PDT            0.80              8         0              Normal
  05/04/2026 01 PM PDT            0.80              8         0              Normal
  05/04/2026 02 PM PDT            0.80              8         0              Normal
  05/04/2026 03 PM PDT            0.82              8         +              Normal
  05/04/2026 04 PM PDT            0.84              9         +              Normal
  05/04/2026 05 PM PDT            0.87             10         +              Normal
  05/04/2026 06 PM PDT            0.88             10         +              Normal
  05/04/2026 07 PM PDT            0.90             11         +              Normal
  05/04/2026 08 PM PDT            0.92             12         +              Normal
  05/04/2026 09 PM PDT            0.92             12         0              Normal
  05/04/2026 10 PM PDT            0.92             12         0              Normal
  05/04/2026 11 PM PDT            0.91             11         -              Normal
  05/05/2026 12 AM PDT            0.92             12         +              Normal
  05/05/2026 01 AM PDT            0.92             12         0              Normal
  05/05/2026 02 AM PDT            0.94             12         +              Normal
  05/05/2026 03 AM PDT            0.96             13         +              Normal
  05/05/2026 04 AM PDT            0.99             14         +              Normal
  05/05/2026 05 AM PDT            1.01             15         +              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.