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

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ARROYO MOCHO - PLEASANTON (AYMC1)
Latitude: 37.69º NLongitude: 121.87º WElevation: 335 FeetForecast Type: Unofficial Location
Location: Alameda County in CaliforniaBulletin Group: Central CoastRiver Group: South Bay
Issuance Time: Apr 01 2026 at 1:16 PM PDTNext Issuance: Apr 02 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 Mocho - Pleasanton (AYMC1)
#
# File Generation Time:  04/01/2026 at 01:18 PM PDT
# Data Interval:  1 Hour
#
# Most Recent Date & Time of Maximum Observed:  04/01/2026 at 09:00 AM PDT
# Maximum Observed Stage:                       3.58 Feet
# Maximum Observed Flow:                        5 cfs
#
# Earliest Date & Time of Maximum Forecast:     04/02/2026 at 03:00 AM PDT
# Maximum Forecast Stage:                       4.63 Feet
# Maximum Forecast Flow:                        69 cfs
#
# OBSERVED
#
# Date & Time  (Local)    Stage (Feet)     Flow (cfs)     Trend     Observed Status
# ---------------------------------------------------------------------------------
  03/27/2026 01 PM PDT            3.50              4                Not Applicable
  03/27/2026 02 PM PDT            3.49              4         -      Not Applicable
  03/27/2026 03 PM PDT            3.48              3         -      Not Applicable
  03/27/2026 04 PM PDT            3.45              3         -      Not Applicable
  03/27/2026 05 PM PDT            3.45              3         0      Not Applicable
  03/27/2026 06 PM PDT            3.44              3         -      Not Applicable
  03/27/2026 07 PM PDT            3.44              3         0      Not Applicable
  03/27/2026 08 PM PDT            3.44              3         0      Not Applicable
  03/27/2026 09 PM PDT            3.44              3         0      Not Applicable
  03/27/2026 10 PM PDT            3.44              3         0      Not Applicable
  03/27/2026 11 PM PDT            3.44              3         0      Not Applicable
  03/28/2026 12 AM PDT            3.44              3         0      Not Applicable
  03/28/2026 01 AM PDT            3.44              3         0      Not Applicable
  03/28/2026 02 AM PDT            3.44              3         0      Not Applicable
  03/28/2026 03 AM PDT            3.44              3         0      Not Applicable
  03/28/2026 04 AM PDT            3.47              3         +      Not Applicable
  03/28/2026 05 AM PDT            3.55              5         +      Not Applicable
  03/28/2026 06 AM PDT            3.53              4         -      Not Applicable
  03/28/2026 07 AM PDT            3.50              4         -      Not Applicable
  03/28/2026 08 AM PDT            3.48              3         -      Not Applicable
  03/28/2026 09 AM PDT            3.46              3         -      Not Applicable
  03/28/2026 10 AM PDT            3.46              3         0      Not Applicable
  03/28/2026 11 AM PDT            3.45              3         -      Not Applicable
  03/28/2026 12 PM PDT            3.45              3         0      Not Applicable
  03/28/2026 01 PM PDT            3.45              3         0      Not Applicable
  03/28/2026 02 PM PDT            3.45              3         0      Not Applicable
  03/28/2026 03 PM PDT            3.45              3         0      Not Applicable
  03/28/2026 04 PM PDT            3.45              3         0      Not Applicable
  03/28/2026 05 PM PDT            3.44              3         -      Not Applicable
  03/28/2026 06 PM PDT            3.44              3         0      Not Applicable
  03/28/2026 07 PM PDT            3.44              3         0      Not Applicable
  03/28/2026 08 PM PDT            3.44              3         0      Not Applicable
  03/28/2026 09 PM PDT            3.44              3         0      Not Applicable
  03/28/2026 10 PM PDT            3.53              4         +      Not Applicable
  03/28/2026 11 PM PDT            3.55              5         +      Not Applicable
  03/29/2026 12 AM PDT            3.50              4         -      Not Applicable
  03/29/2026 01 AM PDT            3.48              3         -      Not Applicable
  03/29/2026 02 AM PDT            3.46              3         -      Not Applicable
  03/29/2026 03 AM PDT            3.45              3         -      Not Applicable
  03/29/2026 04 AM PDT            3.45              3         0      Not Applicable
  03/29/2026 05 AM PDT            3.45              3         0      Not Applicable
  03/29/2026 06 AM PDT            3.45              3         0      Not Applicable
  03/29/2026 07 AM PDT            3.44              3         -      Not Applicable
  03/29/2026 08 AM PDT            3.44              3         0      Not Applicable
  03/29/2026 09 AM PDT            3.44              3         0      Not Applicable
  03/29/2026 10 AM PDT            3.44              3         0      Not Applicable
  03/29/2026 11 AM PDT            3.44              3         0      Not Applicable
  03/29/2026 12 PM PDT            3.44              3         0      Not Applicable
  03/29/2026 01 PM PDT            3.44              3         0      Not Applicable
  03/29/2026 02 PM PDT            3.44              3         0      Not Applicable
  03/29/2026 03 PM PDT            3.50              4         +      Not Applicable
  03/29/2026 04 PM PDT            3.54              5         +      Not Applicable
  03/29/2026 05 PM PDT            3.50              4         -      Not Applicable
  03/29/2026 06 PM PDT            3.48              3         -      Not Applicable
  03/29/2026 07 PM PDT            3.47              3         -      Not Applicable
  03/29/2026 08 PM PDT            3.46              3         -      Not Applicable
  03/29/2026 09 PM PDT            3.45              3         -      Not Applicable
  03/29/2026 10 PM PDT            3.45              3         0      Not Applicable
  03/29/2026 11 PM PDT            3.44              3         -      Not Applicable
  03/30/2026 12 AM PDT            3.44              3         0      Not Applicable
  03/30/2026 01 AM PDT            3.44              3         0      Not Applicable
  03/30/2026 02 AM PDT            3.44              3         0      Not Applicable
  03/30/2026 03 AM PDT            3.44              3         0      Not Applicable
  03/30/2026 04 AM PDT            3.44              3         0      Not Applicable
  03/30/2026 05 AM PDT            3.44              3         0      Not Applicable
  03/30/2026 06 AM PDT            3.43              3         -      Not Applicable
  03/30/2026 07 AM PDT            3.43              3         0      Not Applicable
  03/30/2026 08 AM PDT            3.43              3         0      Not Applicable
  03/30/2026 09 AM PDT            3.43              3         0      Not Applicable
  03/30/2026 10 AM PDT            3.44              3         +      Not Applicable
  03/30/2026 11 AM PDT            3.54              5         +      Not Applicable
  03/30/2026 12 PM PDT            3.53              4         -      Not Applicable
  03/30/2026 01 PM PDT            3.50              4         -      Not Applicable
  03/30/2026 02 PM PDT            3.47              3         -      Not Applicable
  03/30/2026 03 PM PDT            3.45              3         -      Not Applicable
  03/30/2026 04 PM PDT            3.44              3         -      Not Applicable
  03/30/2026 05 PM PDT            3.44              3         0      Not Applicable
  03/30/2026 06 PM PDT            3.43              3         -      Not Applicable
  03/30/2026 07 PM PDT            3.43              3         0      Not Applicable
  03/30/2026 08 PM PDT            3.43              3         0      Not Applicable
  03/30/2026 09 PM PDT            3.43              3         0      Not Applicable
  03/30/2026 10 PM PDT            3.43              3         0      Not Applicable
  03/30/2026 11 PM PDT            3.43              3         0      Not Applicable
  03/31/2026 12 AM PDT            3.43              3         0      Not Applicable
  03/31/2026 01 AM PDT            3.43              3         0      Not Applicable
  03/31/2026 02 AM PDT            3.43              3         0      Not Applicable
  03/31/2026 03 AM PDT            3.52              4         +      Not Applicable
  03/31/2026 04 AM PDT            3.54              5         +      Not Applicable
  03/31/2026 05 AM PDT            3.50              4         -      Not Applicable
  03/31/2026 06 AM PDT            3.47              3         -      Not Applicable
  03/31/2026 07 AM PDT            3.46              3         -      Not Applicable
  03/31/2026 08 AM PDT            3.45              3         -      Not Applicable
  03/31/2026 09 AM PDT            3.45              3         0      Not Applicable
  03/31/2026 10 AM PDT            3.45              3         0      Not Applicable
  03/31/2026 11 AM PDT            3.45              3         0      Not Applicable
  03/31/2026 12 PM PDT            3.45              3         0      Not Applicable
  03/31/2026 01 PM PDT            3.46              3         +      Not Applicable
  03/31/2026 02 PM PDT            3.46              3         0      Not Applicable
  03/31/2026 03 PM PDT            3.50              4         +      Not Applicable
  03/31/2026 04 PM PDT            3.57              5         +      Not Applicable
  03/31/2026 05 PM PDT            3.54              5         -      Not Applicable
  03/31/2026 06 PM PDT            3.50              4         -      Not Applicable
  03/31/2026 07 PM PDT            3.48              3         -      Not Applicable
  03/31/2026 08 PM PDT            3.48              3         0      Not Applicable
  03/31/2026 09 PM PDT            3.47              3         -      Not Applicable
  03/31/2026 10 PM PDT            3.47              3         0      Not Applicable
  03/31/2026 11 PM PDT            3.47              3         0      Not Applicable
  04/01/2026 12 AM PDT            3.47              3         0      Not Applicable
  04/01/2026 01 AM PDT            3.47              3         0      Not Applicable
  04/01/2026 02 AM PDT            3.47              3         0      Not Applicable
  04/01/2026 03 AM PDT            3.47              3         0      Not Applicable
  04/01/2026 04 AM PDT            3.47              3         0      Not Applicable
  04/01/2026 05 AM PDT            3.47              3         0      Not Applicable
  04/01/2026 06 AM PDT            3.47              3         0      Not Applicable
  04/01/2026 07 AM PDT            3.47              3         0      Not Applicable
  04/01/2026 08 AM PDT            3.57              5         +      Not Applicable
  04/01/2026 09 AM PDT            3.58              5         +      Not Applicable
  04/01/2026 10 AM PDT            3.54              5         -      Not Applicable
  04/01/2026 11 AM PDT            3.50              4         -      Not Applicable
  04/01/2026 12 PM PDT            3.48              3         -      Not Applicable
  04/01/2026 01 PM PDT            3.52              4         +      Not Applicable
#
# FORECAST
#
# Date & Time  (Local)    Stage (Feet)     Flow (cfs)     Trend     Forecast Status
# ---------------------------------------------------------------------------------
  04/01/2026 02 PM PDT            3.64              7                Not Applicable
  04/01/2026 03 PM PDT            3.78             11         +      Not Applicable
  04/01/2026 04 PM PDT            3.82             12         +      Not Applicable
  04/01/2026 05 PM PDT            3.74             10         -      Not Applicable
  04/01/2026 06 PM PDT            3.64              7         -      Not Applicable
  04/01/2026 07 PM PDT            3.57              5         -      Not Applicable
  04/01/2026 08 PM PDT            3.54              5         -      Not Applicable
  04/01/2026 09 PM PDT            3.57              5         +      Not Applicable
  04/01/2026 10 PM PDT            3.67              8         +      Not Applicable
  04/01/2026 11 PM PDT            3.88             15         +      Not Applicable
  04/02/2026 12 AM PDT            4.16             29         +      Not Applicable
  04/02/2026 01 AM PDT            4.42             48         +      Not Applicable
  04/02/2026 02 AM PDT            4.61             66         +      Not Applicable
  04/02/2026 03 AM PDT            4.63             69         +      Not Applicable
  04/02/2026 04 AM PDT            4.57             62         -      Not Applicable
  04/02/2026 05 AM PDT            4.40             46         -      Not Applicable
  04/02/2026 06 AM PDT            4.26             35         -      Not Applicable
  04/02/2026 07 AM PDT            4.19             31         -      Not Applicable
  04/02/2026 08 AM PDT            4.16             29         -      Not Applicable
  04/02/2026 09 AM PDT            4.15             28         -      Not Applicable
  04/02/2026 10 AM PDT            4.17             29         +      Not Applicable
  04/02/2026 11 AM PDT            4.18             30         +      Not Applicable
  04/02/2026 12 PM PDT            4.20             31         +      Not Applicable
  04/02/2026 01 PM PDT            4.23             33         +      Not Applicable
  04/02/2026 02 PM PDT            4.26             35         +      Not Applicable
  04/02/2026 03 PM PDT            4.28             37         +      Not Applicable
  04/02/2026 04 PM PDT            4.28             37         0      Not Applicable
  04/02/2026 05 PM PDT            4.25             35         -      Not Applicable
  04/02/2026 06 PM PDT            4.20             31         -      Not Applicable
  04/02/2026 07 PM PDT            4.13             27         -      Not Applicable
  04/02/2026 08 PM PDT            4.05             22         -      Not Applicable
  04/02/2026 09 PM PDT            3.96             18         -      Not Applicable
  04/02/2026 10 PM PDT            3.88             15         -      Not Applicable
  04/02/2026 11 PM PDT            3.81             12         -      Not Applicable
  04/03/2026 12 AM PDT            3.73              9         -      Not Applicable
  04/03/2026 01 AM PDT            3.66              7         -      Not Applicable
  04/03/2026 02 AM PDT            3.60              6         -      Not Applicable
  04/03/2026 03 AM PDT            3.54              5         -      Not Applicable
  04/03/2026 04 AM PDT            3.48              3         -      Not Applicable
  04/03/2026 05 AM PDT            3.44              3         -      Not Applicable
  04/03/2026 06 AM PDT            3.39              2         -      Not Applicable
  04/03/2026 07 AM PDT            3.37              2         -      Not Applicable
  04/03/2026 08 AM PDT            3.34              1         -      Not Applicable
  04/03/2026 09 AM PDT            3.33              1         -      Not Applicable
  04/03/2026 10 AM PDT            3.31              1         -      Not Applicable
  04/03/2026 11 AM PDT            3.30              1         -      Not Applicable
  04/03/2026 12 PM PDT            3.29              1         -      Not Applicable
  04/03/2026 01 PM PDT            3.29              1         0      Not Applicable
  04/03/2026 02 PM PDT            3.29              1         0      Not Applicable
  04/03/2026 03 PM PDT            3.28              1         -      Not Applicable
  04/03/2026 04 PM PDT            3.28              1         0      Not Applicable
  04/03/2026 05 PM PDT            3.28              1         0      Not Applicable
  04/03/2026 06 PM PDT            3.28              1         0      Not Applicable
  04/03/2026 07 PM PDT            3.28              1         0      Not Applicable
  04/03/2026 08 PM PDT            3.28              1         0      Not Applicable
  04/03/2026 09 PM PDT            3.28              1         0      Not Applicable
  04/03/2026 10 PM PDT            3.28              1         0      Not Applicable
  04/03/2026 11 PM PDT            3.28              1         0      Not Applicable
  04/04/2026 12 AM PDT            3.28              1         0      Not Applicable
  04/04/2026 01 AM PDT            3.28              1         0      Not Applicable
  04/04/2026 02 AM PDT            3.28              1         0      Not Applicable
  04/04/2026 03 AM PDT            3.28              1         0      Not Applicable
  04/04/2026 04 AM PDT            3.28              1         0      Not Applicable
  04/04/2026 05 AM PDT            3.28              1         0      Not Applicable
  04/04/2026 06 AM PDT            3.28              1         0      Not Applicable
  04/04/2026 07 AM PDT            3.28              1         0      Not Applicable
  04/04/2026 08 AM PDT            3.28              1         0      Not Applicable
  04/04/2026 09 AM PDT            3.28              1         0      Not Applicable
  04/04/2026 10 AM PDT            3.28              1         0      Not Applicable
  04/04/2026 11 AM PDT            3.28              1         0      Not Applicable
  04/04/2026 12 PM PDT            3.28              1         0      Not Applicable
  04/04/2026 01 PM PDT            3.28              1         0      Not Applicable
  04/04/2026 02 PM PDT            3.28              1         0      Not Applicable
  04/04/2026 03 PM PDT            3.28              1         0      Not Applicable
  04/04/2026 04 PM PDT            3.28              1         0      Not Applicable
  04/04/2026 05 PM PDT            3.28              1         0      Not Applicable
  04/04/2026 06 PM PDT            3.28              1         0      Not Applicable
  04/04/2026 07 PM PDT            3.28              1         0      Not Applicable
  04/04/2026 08 PM PDT            3.28              1         0      Not Applicable
  04/04/2026 09 PM PDT            3.28              1         0      Not Applicable
  04/04/2026 10 PM PDT            3.28              1         0      Not Applicable
  04/04/2026 11 PM PDT            3.28              1         0      Not Applicable
  04/05/2026 12 AM PDT            3.28              1         0      Not Applicable
  04/05/2026 01 AM PDT            3.28              1         0      Not Applicable
  04/05/2026 02 AM PDT            3.28              1         0      Not Applicable
  04/05/2026 03 AM PDT            3.28              1         0      Not Applicable
  04/05/2026 04 AM PDT            3.28              1         0      Not Applicable
  04/05/2026 05 AM PDT            3.28              1         0      Not Applicable
  04/05/2026 06 AM PDT            3.28              1         0      Not Applicable
  04/05/2026 07 AM PDT            3.28              1         0      Not Applicable
  04/05/2026 08 AM PDT            3.28              1         0      Not Applicable
  04/05/2026 09 AM PDT            3.28              1         0      Not Applicable
  04/05/2026 10 AM PDT            3.28              1         0      Not Applicable
  04/05/2026 11 AM PDT            3.28              1         0      Not Applicable
  04/05/2026 12 PM PDT            3.28              1         0      Not Applicable
  04/05/2026 01 PM PDT            3.28              1         0      Not Applicable
  04/05/2026 02 PM PDT            3.28              1         0      Not Applicable
  04/05/2026 03 PM PDT            3.28              1         0      Not Applicable
  04/05/2026 04 PM PDT            3.28              1         0      Not Applicable
  04/05/2026 05 PM PDT            3.28              1         0      Not Applicable
  04/05/2026 06 PM PDT            3.28              1         0      Not Applicable
  04/05/2026 07 PM PDT            3.28              1         0      Not Applicable
  04/05/2026 08 PM PDT            3.28              1         0      Not Applicable
  04/05/2026 09 PM PDT            3.28              1         0      Not Applicable
  04/05/2026 10 PM PDT            3.28              1         0      Not Applicable
  04/05/2026 11 PM PDT            3.28              1         0      Not Applicable
  04/06/2026 12 AM PDT            3.28              1         0      Not Applicable
  04/06/2026 01 AM PDT            3.28              1         0      Not Applicable
  04/06/2026 02 AM PDT            3.28              1         0      Not Applicable
  04/06/2026 03 AM PDT            3.28              1         0      Not Applicable
  04/06/2026 04 AM PDT            3.28              1         0      Not Applicable
  04/06/2026 05 AM PDT            3.28              1         0      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.