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ARROYO DE LA LAGUNA - VERONA (ADLC1)
| Latitude: 37.63º N | Longitude: 121.88º W | Elevation: 280 Feet | | Forecast Type: Unofficial Location |
| Location: Alameda County in California | Bulletin Group: Central Coast | River Group: South Bay |
| Issuance Time: | Apr 20 2026 at 6:56 AM PDT | Next Issuance: | Apr 21 2026 at 9:00 AM PDT
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| Action/Monitor: N/A | Minor Flood: 15.0 Feet | Moderate Flood: 17.0 Feet | Major Flood: N/A |
# Tabular Observed and Forecast Hydrograph Information
#
# Location: Arroyo De La Laguna - Verona (ADLC1)
#
# 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 06:00 AM PDT
# Maximum Observed Stage: 1.28 Feet
# Maximum Observed Flow: 30 cfs
#
# Earliest Date & Time of Maximum Forecast: 04/21/2026 at 06:00 AM PDT
# Maximum Forecast Stage: 4.12 Feet
# Maximum Forecast Flow: 558 cfs
#
# OBSERVED
#
# Date & Time (Local) Stage (Feet) Flow (cfs) Trend Observed Status
# ---------------------------------------------------------------------------------
04/15/2026 06 AM PDT 1.28 30 Normal
04/15/2026 07 AM PDT 1.27 30 - Normal
04/15/2026 08 AM PDT 1.26 29 - Normal
04/15/2026 09 AM PDT 1.25 28 - Normal
04/15/2026 10 AM PDT 1.25 28 0 Normal
04/15/2026 11 AM PDT 1.24 28 - Normal
04/15/2026 12 PM PDT 1.24 28 0 Normal
04/15/2026 01 PM PDT 1.23 27 - Normal
04/15/2026 02 PM PDT 1.23 27 0 Normal
04/15/2026 03 PM PDT 1.23 27 0 Normal
04/15/2026 04 PM PDT 1.24 28 + Normal
04/15/2026 05 PM PDT 1.25 28 + Normal
04/15/2026 06 PM PDT 1.25 28 0 Normal
04/15/2026 07 PM PDT 1.24 28 - Normal
04/15/2026 08 PM PDT 1.23 27 - Normal
04/15/2026 09 PM PDT 1.21 26 - Normal
04/15/2026 10 PM PDT 1.20 25 - Normal
04/15/2026 11 PM PDT 1.19 25 - Normal
04/16/2026 12 AM PDT 1.19 25 0 Normal
04/16/2026 01 AM PDT 1.19 25 0 Normal
04/16/2026 02 AM PDT 1.19 25 0 Normal
04/16/2026 03 AM PDT 1.19 25 0 Normal
04/16/2026 04 AM PDT 1.19 25 0 Normal
04/16/2026 05 AM PDT 1.18 24 - Normal
04/16/2026 06 AM PDT 1.17 23 - Normal
04/16/2026 07 AM PDT 1.16 23 - Normal
04/16/2026 08 AM PDT 1.16 23 0 Normal
04/16/2026 09 AM PDT 1.16 23 0 Normal
04/16/2026 10 AM PDT 1.15 22 - Normal
04/16/2026 11 AM PDT 1.15 22 0 Normal
04/16/2026 12 PM PDT 1.16 23 + Normal
04/16/2026 01 PM PDT 1.15 22 - Normal
04/16/2026 02 PM PDT 1.15 22 0 Normal
04/16/2026 03 PM PDT 1.15 22 0 Normal
04/16/2026 04 PM PDT 1.15 22 0 Normal
04/16/2026 05 PM PDT 1.16 23 + Normal
04/16/2026 06 PM PDT 1.16 23 0 Normal
04/16/2026 07 PM PDT 1.16 23 0 Normal
04/16/2026 08 PM PDT 1.15 22 - Normal
04/16/2026 09 PM PDT 1.14 22 - Normal
04/16/2026 10 PM PDT 1.13 21 - Normal
04/16/2026 11 PM PDT 1.12 21 - Normal
04/17/2026 12 AM PDT 1.11 20 - Normal
04/17/2026 01 AM PDT 1.10 19 - Normal
04/17/2026 02 AM PDT 1.10 19 0 Normal
04/17/2026 03 AM PDT 1.09 19 - Normal
04/17/2026 04 AM PDT 1.09 19 0 Normal
04/17/2026 05 AM PDT 1.09 19 0 Normal
04/17/2026 06 AM PDT 1.09 19 0 Normal
04/17/2026 07 AM PDT 1.09 19 0 Normal
04/17/2026 08 AM PDT 1.09 19 0 Normal
04/17/2026 09 AM PDT 1.09 19 0 Normal
04/17/2026 10 AM PDT 1.10 19 + Normal
04/17/2026 11 AM PDT 1.10 19 0 Normal
04/17/2026 12 PM PDT 1.11 20 + Normal
04/17/2026 01 PM PDT 1.11 20 0 Normal
04/17/2026 02 PM PDT 1.10 19 - Normal
04/17/2026 03 PM PDT 1.10 19 0 Normal
04/17/2026 04 PM PDT 1.09 19 - Normal
04/17/2026 05 PM PDT 1.09 19 0 Normal
04/17/2026 06 PM PDT 1.08 18 - Normal
04/17/2026 07 PM PDT 1.07 18 - Normal
04/17/2026 08 PM PDT 1.06 17 - Normal
04/17/2026 09 PM PDT 1.05 17 - Normal
04/17/2026 10 PM PDT 1.05 17 0 Normal
04/17/2026 11 PM PDT 1.04 17 - Normal
04/18/2026 12 AM PDT 1.03 16 - Normal
04/18/2026 01 AM PDT 1.03 16 0 Normal
04/18/2026 02 AM PDT 1.03 16 0 Normal
04/18/2026 03 AM PDT 1.04 17 + Normal
04/18/2026 04 AM PDT 1.05 17 + Normal
04/18/2026 05 AM PDT 1.05 17 0 Normal
04/18/2026 06 AM PDT 1.05 17 0 Normal
04/18/2026 07 AM PDT 1.04 17 - Normal
04/18/2026 08 AM PDT 1.04 17 0 Normal
04/18/2026 09 AM PDT 1.04 17 0 Normal
04/18/2026 10 AM PDT 1.04 17 0 Normal
04/18/2026 11 AM PDT 1.04 17 0 Normal
04/18/2026 12 PM PDT 1.04 17 0 Normal
04/18/2026 01 PM PDT 1.03 16 - Normal
04/18/2026 02 PM PDT 1.04 17 + Normal
04/18/2026 03 PM PDT 1.03 16 - Normal
04/18/2026 04 PM PDT 1.04 17 + Normal
04/18/2026 05 PM PDT 1.04 17 0 Normal
04/18/2026 06 PM PDT 1.05 17 + Normal
04/18/2026 07 PM PDT 1.05 17 0 Normal
04/18/2026 08 PM PDT 1.06 17 + Normal
04/18/2026 09 PM PDT 1.05 17 - Normal
04/18/2026 10 PM PDT 1.05 17 0 Normal
04/18/2026 11 PM PDT 1.04 17 - Normal
04/19/2026 12 AM PDT 1.03 16 - Normal
04/19/2026 01 AM PDT 1.02 16 - Normal
04/19/2026 02 AM PDT 1.01 15 - Normal
04/19/2026 03 AM PDT 1.01 15 0 Normal
04/19/2026 04 AM PDT 1.01 15 0 Normal
04/19/2026 05 AM PDT 1.01 15 0 Normal
04/19/2026 06 AM PDT 1.01 15 0 Normal
04/19/2026 07 AM PDT 1.01 15 0 Normal
04/19/2026 08 AM PDT 1.01 15 0 Normal
04/19/2026 09 AM PDT 1.01 15 0 Normal
04/19/2026 10 AM PDT 1.01 15 0 Normal
04/19/2026 11 AM PDT 1.01 15 0 Normal
04/19/2026 12 PM PDT 1.01 15 0 Normal
04/19/2026 01 PM PDT 1.02 16 + Normal
04/19/2026 02 PM PDT 1.03 16 + Normal
04/19/2026 03 PM PDT 1.03 16 0 Normal
04/19/2026 04 PM PDT 1.04 17 + Normal
04/19/2026 05 PM PDT 1.04 17 0 Normal
04/19/2026 06 PM PDT 1.04 17 0 Normal
04/19/2026 07 PM PDT 1.03 16 - Normal
04/19/2026 08 PM PDT 1.02 16 - Normal
04/19/2026 09 PM PDT 1.01 15 - Normal
04/19/2026 10 PM PDT 1.00 15 - Normal
04/19/2026 11 PM PDT 1.00 15 0 Normal
04/20/2026 12 AM PDT 0.99 14 - Normal
04/20/2026 01 AM PDT 0.99 14 0 Normal
04/20/2026 02 AM PDT 0.99 14 0 Normal
04/20/2026 03 AM PDT 0.98 14 - Normal
04/20/2026 04 AM PDT 0.98 14 0 Normal
04/20/2026 05 AM PDT 0.98 14 0 Normal
04/20/2026 06 AM PDT 0.98 14 0 Normal
#
# FORECAST
#
# Date & Time (Local) Stage (Feet) Flow (cfs) Trend Forecast Status
# ---------------------------------------------------------------------------------
04/20/2026 07 AM PDT 0.98 14 Normal
04/20/2026 08 AM PDT 0.98 14 0 Normal
04/20/2026 09 AM PDT 1.00 15 + Normal
04/20/2026 10 AM PDT 1.03 16 + Normal
04/20/2026 11 AM PDT 1.05 17 + Normal
04/20/2026 12 PM PDT 1.08 18 + Normal
04/20/2026 01 PM PDT 1.10 19 + Normal
04/20/2026 02 PM PDT 1.12 21 + Normal
04/20/2026 03 PM PDT 1.16 23 + Normal
04/20/2026 04 PM PDT 1.23 27 + Normal
04/20/2026 05 PM PDT 1.35 35 + Normal
04/20/2026 06 PM PDT 1.49 47 + Normal
04/20/2026 07 PM PDT 1.60 57 + Normal
04/20/2026 08 PM PDT 1.71 69 + Normal
04/20/2026 09 PM PDT 1.91 90 + Normal
04/20/2026 10 PM PDT 2.30 142 + Normal
04/20/2026 11 PM PDT 2.69 209 + Normal
04/21/2026 12 AM PDT 3.00 274 + Normal
04/21/2026 01 AM PDT 3.27 337 + Normal
04/21/2026 02 AM PDT 3.48 386 + Normal
04/21/2026 03 AM PDT 3.68 437 + Normal
04/21/2026 04 AM PDT 3.93 505 + Normal
04/21/2026 05 AM PDT 4.08 547 + Normal
04/21/2026 06 AM PDT 4.12 558 + Normal
04/21/2026 07 AM PDT 3.98 519 - Normal
04/21/2026 08 AM PDT 3.88 491 - Normal
04/21/2026 09 AM PDT 3.68 437 - Normal
04/21/2026 10 AM PDT 3.48 386 - Normal
04/21/2026 11 AM PDT 3.30 344 - Normal
04/21/2026 12 PM PDT 3.19 318 - Normal
04/21/2026 01 PM PDT 3.19 318 0 Normal
04/21/2026 02 PM PDT 3.25 332 + Normal
04/21/2026 03 PM PDT 3.35 356 + Normal
04/21/2026 04 PM PDT 3.42 372 + Normal
04/21/2026 05 PM PDT 3.44 377 + Normal
04/21/2026 06 PM PDT 3.44 377 0 Normal
04/21/2026 07 PM PDT 3.40 367 - Normal
04/21/2026 08 PM PDT 3.33 351 - Normal
04/21/2026 09 PM PDT 3.25 332 - Normal
04/21/2026 10 PM PDT 3.13 304 - Normal
04/21/2026 11 PM PDT 3.01 276 - Normal
04/22/2026 12 AM PDT 2.90 252 - Normal
04/22/2026 01 AM PDT 2.80 231 - Normal
04/22/2026 02 AM PDT 2.72 214 - Normal
04/22/2026 03 AM PDT 2.65 201 - Normal
04/22/2026 04 AM PDT 2.58 188 - Normal
04/22/2026 05 AM PDT 2.50 174 - Normal
04/22/2026 06 AM PDT 2.43 162 - Normal
04/22/2026 07 AM PDT 2.37 152 - Normal
04/22/2026 08 AM PDT 2.31 143 - Normal
04/22/2026 09 AM PDT 2.24 133 - Normal
04/22/2026 10 AM PDT 2.17 123 - Normal
04/22/2026 11 AM PDT 2.12 116 - Normal
04/22/2026 12 PM PDT 2.07 109 - Normal
04/22/2026 01 PM PDT 2.01 102 - Normal
04/22/2026 02 PM PDT 1.95 95 - Normal
04/22/2026 03 PM PDT 1.87 85 - Normal
04/22/2026 04 PM PDT 1.78 76 - Normal
04/22/2026 05 PM PDT 1.69 67 - Normal
04/22/2026 06 PM PDT 1.62 59 - Normal
04/22/2026 07 PM PDT 1.54 51 - Normal
04/22/2026 08 PM PDT 1.46 44 - Normal
04/22/2026 09 PM PDT 1.39 38 - Normal
04/22/2026 10 PM PDT 1.32 33 - Normal
04/22/2026 11 PM PDT 1.25 28 - Normal
04/23/2026 12 AM PDT 1.20 25 - Normal
04/23/2026 01 AM PDT 1.14 22 - Normal
04/23/2026 02 AM PDT 1.09 19 - Normal
04/23/2026 03 AM PDT 1.05 17 - Normal
04/23/2026 04 AM PDT 1.01 15 - Normal
04/23/2026 05 AM PDT 0.96 13 - Normal
04/23/2026 06 AM PDT 0.93 12 - Normal
04/23/2026 07 AM PDT 0.90 11 - Normal
04/23/2026 08 AM PDT 0.87 10 - Normal
04/23/2026 09 AM PDT 0.84 9 - Normal
04/23/2026 10 AM PDT 0.82 8 - Normal
04/23/2026 11 AM PDT 0.81 8 - Normal
04/23/2026 12 PM PDT 0.80 8 - Normal
04/23/2026 01 PM PDT 0.79 7 - Normal
04/23/2026 02 PM PDT 0.78 7 - Normal
04/23/2026 03 PM PDT 0.77 7 - Normal
04/23/2026 04 PM PDT 0.77 7 0 Normal
04/23/2026 05 PM PDT 0.77 7 0 Normal
04/23/2026 06 PM PDT 0.76 6 - Normal
04/23/2026 07 PM PDT 0.76 6 0 Normal
04/23/2026 08 PM PDT 0.76 6 0 Normal
04/23/2026 09 PM PDT 0.76 6 0 Normal
04/23/2026 10 PM PDT 0.75 6 - Normal
04/23/2026 11 PM PDT 0.75 6 0 Normal
04/24/2026 12 AM PDT 0.75 6 0 Normal
04/24/2026 01 AM PDT 0.75 6 0 Normal
04/24/2026 02 AM PDT 0.75 6 0 Normal
04/24/2026 03 AM PDT 0.75 6 0 Normal
04/24/2026 04 AM PDT 0.75 6 0 Normal
04/24/2026 05 AM PDT 0.74 6 - Normal
04/24/2026 06 AM PDT 0.74 6 0 Normal
04/24/2026 07 AM PDT 0.74 6 0 Normal
04/24/2026 08 AM PDT 0.74 6 0 Normal
04/24/2026 09 AM PDT 0.74 6 0 Normal
04/24/2026 10 AM PDT 0.74 6 0 Normal
04/24/2026 11 AM PDT 0.74 6 0 Normal
04/24/2026 12 PM PDT 0.74 6 0 Normal
04/24/2026 01 PM PDT 0.73 6 - Normal
04/24/2026 02 PM PDT 0.73 6 0 Normal
04/24/2026 03 PM PDT 0.73 6 0 Normal
04/24/2026 04 PM PDT 0.73 6 0 Normal
04/24/2026 05 PM PDT 0.73 6 0 Normal
04/24/2026 06 PM PDT 0.73 6 0 Normal
04/24/2026 07 PM PDT 0.73 6 0 Normal
04/24/2026 08 PM PDT 0.73 6 0 Normal
04/24/2026 09 PM PDT 0.72 5 - Normal
04/24/2026 10 PM PDT 0.72 5 0 Normal
04/24/2026 11 PM PDT 0.72 5 0 Normal
04/25/2026 12 AM PDT 0.72 5 0 Normal
04/25/2026 01 AM PDT 0.72 5 0 Normal
04/25/2026 02 AM PDT 0.72 5 0 Normal
04/25/2026 03 AM PDT 0.72 5 0 Normal
04/25/2026 04 AM PDT 0.72 5 0 Normal
04/25/2026 05 AM PDT 0.72 5 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.
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