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

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SAN LORENZO CREEK - HAYWARD (LRZC1)
Latitude: 37.69º NLongitude: 122.06º WElevation: 133 FeetForecast Type: Unofficial Location
Location: Alameda County in CaliforniaBulletin Group: Central CoastRiver Group: South Bay
Issuance Time: Feb 15 2026 at 7:40 AM PSTNext Issuance: Feb 16 2026 at 9:00 AM PST
Action/Monitor: 20.85 FeetMinor Flood: 24.6 FeetModerate Flood: N/A Major Flood: N/A


# Tabular Observed and Forecast Hydrograph Information
#
# Location: San Lorenzo Creek - Hayward (LRZC1)
#
# File Generation Time:  02/15/2026 at 07:44 AM PST
# Data Interval:  1 Hour
#
# Most Recent Date & Time of Maximum Observed:  02/11/2026 at 04:00 AM PST
# Maximum Observed Stage:                       3.22 Feet
# Maximum Observed Flow:                        19 cfs
#
# Earliest Date & Time of Maximum Forecast:     02/17/2026 at 09:00 PM PST
# Maximum Forecast Stage:                       4.62 Feet
# Maximum Forecast Flow:                        116 cfs
#
# OBSERVED
#
# Date & Time  (Local)    Stage (Feet)     Flow (cfs)     Trend     Observed Status
# ---------------------------------------------------------------------------------
  02/10/2026 07 AM PST            2.83              5                        Normal
  02/10/2026 08 AM PST            2.82              4         -              Normal
  02/10/2026 09 AM PST            2.83              5         +              Normal
  02/10/2026 10 AM PST            2.83              5         0              Normal
  02/10/2026 11 AM PST            2.83              5         0              Normal
  02/10/2026 12 PM PST            2.83              5         0              Normal
  02/10/2026 01 PM PST            2.83              5         0              Normal
  02/10/2026 02 PM PST            2.83              5         0              Normal
  02/10/2026 03 PM PST            2.83              5         0              Normal
  02/10/2026 04 PM PST            2.83              5         0              Normal
  02/10/2026 05 PM PST            2.80              4         -              Normal
  02/10/2026 06 PM PST            2.84              5         +              Normal
  02/10/2026 07 PM PST            2.85              5         +              Normal
  02/10/2026 08 PM PST            2.88              6         +              Normal
  02/10/2026 09 PM PST            2.90              6         +              Normal
  02/10/2026 10 PM PST            2.92              7         +              Normal
  02/10/2026 11 PM PST            2.89              6         -              Normal
  02/11/2026 12 AM PST            2.86              5         -              Normal
  02/11/2026 01 AM PST            2.86              5         0              Normal
  02/11/2026 02 AM PST            2.95              8         +              Normal
  02/11/2026 03 AM PST            3.03             11         +              Normal
  02/11/2026 04 AM PST            3.22             19         +              Normal
  02/11/2026 05 AM PST            3.08             13         -              Normal
  02/11/2026 06 AM PST            2.99              9         -              Normal
  02/11/2026 07 AM PST            2.97              9         -              Normal
  02/11/2026 08 AM PST            2.94              8         -              Normal
  02/11/2026 09 AM PST            2.91              7         -              Normal
  02/11/2026 10 AM PST            2.89              6         -              Normal
  02/11/2026 11 AM PST            2.87              6         -              Normal
  02/11/2026 12 PM PST            2.86              5         -              Normal
  02/11/2026 01 PM PST            2.85              5         -              Normal
  02/11/2026 02 PM PST            2.85              5         0              Normal
  02/11/2026 03 PM PST            2.86              5         +              Normal
  02/11/2026 04 PM PST            2.88              6         +              Normal
  02/11/2026 05 PM PST            2.89              6         +              Normal
  02/11/2026 06 PM PST            2.88              6         -              Normal
  02/11/2026 07 PM PST            2.87              6         -              Normal
  02/11/2026 08 PM PST            2.86              5         -              Normal
  02/11/2026 09 PM PST            2.84              5         -              Normal
  02/11/2026 10 PM PST            2.83              5         -              Normal
  02/11/2026 11 PM PST            2.82              4         -              Normal
  02/12/2026 12 AM PST            2.83              5         +              Normal
  02/12/2026 01 AM PST            2.83              5         0              Normal
  02/12/2026 02 AM PST            2.83              5         0              Normal
  02/12/2026 03 AM PST            2.81              4         -              Normal
  02/12/2026 04 AM PST            2.82              4         +              Normal
  02/12/2026 05 AM PST            2.81              4         -              Normal
  02/12/2026 06 AM PST            2.80              4         -              Normal
  02/12/2026 07 AM PST            2.80              4         0              Normal
  02/12/2026 08 AM PST            2.80              4         0              Normal
  02/12/2026 09 AM PST            2.80              4         0              Normal
  02/12/2026 10 AM PST            2.80              4         0              Normal
  02/12/2026 11 AM PST            2.80              4         0              Normal
  02/12/2026 12 PM PST            2.80              4         0              Normal
  02/12/2026 01 PM PST            2.80              4         0              Normal
  02/12/2026 02 PM PST            2.80              4         0              Normal
  02/12/2026 03 PM PST            2.80              4         0              Normal
  02/12/2026 04 PM PST            2.80              4         0              Normal
  02/12/2026 05 PM PST            2.80              4         0              Normal
  02/12/2026 06 PM PST            2.80              4         0              Normal
  02/12/2026 07 PM PST            2.80              4         0              Normal
  02/12/2026 08 PM PST            2.80              4         0              Normal
  02/12/2026 09 PM PST            2.80              4         0              Normal
  02/12/2026 10 PM PST            2.80              4         0              Normal
  02/12/2026 11 PM PST            2.80              4         0              Normal
  02/13/2026 12 AM PST            2.80              4         0              Normal
  02/13/2026 01 AM PST            2.80              4         0              Normal
  02/13/2026 02 AM PST            2.80              4         0              Normal
  02/13/2026 03 AM PST            2.80              4         0              Normal
  02/13/2026 04 AM PST            2.80              4         0              Normal
  02/13/2026 05 AM PST            2.80              4         0              Normal
  02/13/2026 06 AM PST            2.80              4         0              Normal
  02/13/2026 07 AM PST            2.80              4         0              Normal
  02/13/2026 08 AM PST            2.80              4         0              Normal
  02/13/2026 09 AM PST            2.80              4         0              Normal
  02/13/2026 10 AM PST            2.80              4         0              Normal
  02/13/2026 11 AM PST            2.80              4         0              Normal
  02/13/2026 12 PM PST            2.80              4         0              Normal
  02/13/2026 01 PM PST            2.80              4         0              Normal
  02/13/2026 02 PM PST            2.80              4         0              Normal
  02/13/2026 03 PM PST            2.80              4         0              Normal
  02/13/2026 04 PM PST            2.80              4         0              Normal
  02/13/2026 05 PM PST            2.80              4         0              Normal
  02/13/2026 06 PM PST            2.80              4         0              Normal
  02/13/2026 07 PM PST            2.80              4         0              Normal
  02/13/2026 08 PM PST            2.80              4         0              Normal
  02/13/2026 09 PM PST            2.80              4         0              Normal
  02/13/2026 10 PM PST            2.80              4         0              Normal
  02/13/2026 11 PM PST            2.80              4         0              Normal
  02/14/2026 12 AM PST            2.80              4         0              Normal
  02/14/2026 01 AM PST            2.80              4         0              Normal
  02/14/2026 02 AM PST            2.80              4         0              Normal
  02/14/2026 03 AM PST            2.80              4         0              Normal
  02/14/2026 04 AM PST            2.80              4         0              Normal
  02/14/2026 05 AM PST            2.80              4         0              Normal
  02/14/2026 06 AM PST            2.80              4         0              Normal
  02/14/2026 07 AM PST            2.80              4         0              Normal
  02/14/2026 08 AM PST            2.80              4         0              Normal
  02/14/2026 09 AM PST            2.79              4         -              Normal
  02/14/2026 10 AM PST            2.80              4         +              Normal
  02/14/2026 11 AM PST            2.80              4         0              Normal
  02/14/2026 12 PM PST            2.80              4         0              Normal
  02/14/2026 01 PM PST            2.80              4         0              Normal
  02/14/2026 02 PM PST            2.80              4         0              Normal
  02/14/2026 03 PM PST            2.80              4         0              Normal
  02/14/2026 04 PM PST            2.80              4         0              Normal
  02/14/2026 05 PM PST            2.80              4         0              Normal
  02/14/2026 06 PM PST            2.80              4         0              Normal
  02/14/2026 07 PM PST            2.80              4         0              Normal
  02/14/2026 08 PM PST            2.80              4         0              Normal
  02/14/2026 09 PM PST            2.80              4         0              Normal
  02/14/2026 10 PM PST            2.80              4         0              Normal
  02/14/2026 11 PM PST            2.80              4         0              Normal
  02/15/2026 12 AM PST            2.80              4         0              Normal
  02/15/2026 01 AM PST            2.80              4         0              Normal
  02/15/2026 02 AM PST            2.80              4         0              Normal
  02/15/2026 03 AM PST            2.80              4         0              Normal
  02/15/2026 04 AM PST            2.80              4         0              Normal
  02/15/2026 05 AM PST            2.80              4         0              Normal
  02/15/2026 06 AM PST            2.80              4         0              Normal
  02/15/2026 07 AM PST            2.80              4         0              Normal
#
# FORECAST
#
# Date & Time  (Local)    Stage (Feet)     Flow (cfs)     Trend     Forecast Status
# ---------------------------------------------------------------------------------
  02/15/2026 08 AM PST            2.80              4                        Normal
  02/15/2026 09 AM PST            2.79              4         -              Normal
  02/15/2026 10 AM PST            2.79              4         0              Normal
  02/15/2026 11 AM PST            2.79              4         0              Normal
  02/15/2026 12 PM PST            2.79              4         0              Normal
  02/15/2026 01 PM PST            2.79              4         0              Normal
  02/15/2026 02 PM PST            2.80              4         +              Normal
  02/15/2026 03 PM PST            2.83              5         +              Normal
  02/15/2026 04 PM PST            2.84              5         +              Normal
  02/15/2026 05 PM PST            2.83              5         -              Normal
  02/15/2026 06 PM PST            2.84              5         +              Normal
  02/15/2026 07 PM PST            2.88              6         +              Normal
  02/15/2026 08 PM PST            2.97              9         +              Normal
  02/15/2026 09 PM PST            3.09             13         +              Normal
  02/15/2026 10 PM PST            3.25             20         +              Normal
  02/15/2026 11 PM PST            3.49             27         +              Normal
  02/16/2026 12 AM PST            3.63             35         +              Normal
  02/16/2026 01 AM PST            3.75             43         +              Normal
  02/16/2026 02 AM PST            3.85             50         +              Normal
  02/16/2026 03 AM PST            3.89             53         +              Normal
  02/16/2026 04 AM PST            3.88             52         -              Normal
  02/16/2026 05 AM PST            3.86             50         -              Normal
  02/16/2026 06 AM PST            3.83             48         -              Normal
  02/16/2026 07 AM PST            3.79             46         -              Normal
  02/16/2026 08 AM PST            3.75             43         -              Normal
  02/16/2026 09 AM PST            3.69             39         -              Normal
  02/16/2026 10 AM PST            3.64             36         -              Normal
  02/16/2026 11 AM PST            3.60             33         -              Normal
  02/16/2026 12 PM PST            3.61             34         +              Normal
  02/16/2026 01 PM PST            3.64             36         +              Normal
  02/16/2026 02 PM PST            3.69             39         +              Normal
  02/16/2026 03 PM PST            3.75             43         +              Normal
  02/16/2026 04 PM PST            3.77             44         +              Normal
  02/16/2026 05 PM PST            3.77             44         0              Normal
  02/16/2026 06 PM PST            3.73             42         -              Normal
  02/16/2026 07 PM PST            3.71             40         -              Normal
  02/16/2026 08 PM PST            3.73             42         +              Normal
  02/16/2026 09 PM PST            3.77             44         +              Normal
  02/16/2026 10 PM PST            3.78             45         +              Normal
  02/16/2026 11 PM PST            3.78             45         0              Normal
  02/17/2026 12 AM PST            3.78             45         0              Normal
  02/17/2026 01 AM PST            3.79             46         +              Normal
  02/17/2026 02 AM PST            3.79             46         0              Normal
  02/17/2026 03 AM PST            3.77             44         -              Normal
  02/17/2026 04 AM PST            3.74             42         -              Normal
  02/17/2026 05 AM PST            3.67             38         -              Normal
  02/17/2026 06 AM PST            3.55             30         -              Normal
  02/17/2026 07 AM PST            3.39             24         -              Normal
  02/17/2026 08 AM PST            3.23             19         -              Normal
  02/17/2026 09 AM PST            3.18             17         -              Normal
  02/17/2026 10 AM PST            3.18             17         0              Normal
  02/17/2026 11 AM PST            3.28             21         +              Normal
  02/17/2026 12 PM PST            3.49             27         +              Normal
  02/17/2026 01 PM PST            3.62             35         +              Normal
  02/17/2026 02 PM PST            3.74             42         +              Normal
  02/17/2026 03 PM PST            3.91             54         +              Normal
  02/17/2026 04 PM PST            4.14             72         +              Normal
  02/17/2026 05 PM PST            4.30             86         +              Normal
  02/17/2026 06 PM PST            4.38             93         +              Normal
  02/17/2026 07 PM PST            4.42             97         +              Normal
  02/17/2026 08 PM PST            4.50            104         +              Normal
  02/17/2026 09 PM PST            4.62            116         +              Normal
  02/17/2026 10 PM PST            4.53            107         -              Normal
  02/17/2026 11 PM PST            4.42             97         -              Normal
  02/18/2026 12 AM PST            4.38             93         -              Normal
  02/18/2026 01 AM PST            4.36             91         -              Normal
  02/18/2026 02 AM PST            4.36             91         0              Normal
  02/18/2026 03 AM PST            4.35             90         -              Normal
  02/18/2026 04 AM PST            4.32             87         -              Normal
  02/18/2026 05 AM PST            4.26             82         -              Normal
  02/18/2026 06 AM PST            4.22             79         -              Normal
  02/18/2026 07 AM PST            4.19             76         -              Normal
  02/18/2026 08 AM PST            4.17             74         -              Normal
  02/18/2026 09 AM PST            4.15             73         -              Normal
  02/18/2026 10 AM PST            4.12             70         -              Normal
  02/18/2026 11 AM PST            4.04             64         -              Normal
  02/18/2026 12 PM PST            3.96             58         -              Normal
  02/18/2026 01 PM PST            3.90             53         -              Normal
  02/18/2026 02 PM PST            3.86             50         -              Normal
  02/18/2026 03 PM PST            3.84             49         -              Normal
  02/18/2026 04 PM PST            3.83             48         -              Normal
  02/18/2026 05 PM PST            3.82             48         -              Normal
  02/18/2026 06 PM PST            3.82             48         0              Normal
  02/18/2026 07 PM PST            3.81             47         -              Normal
  02/18/2026 08 PM PST            3.81             47         0              Normal
  02/18/2026 09 PM PST            3.82             48         +              Normal
  02/18/2026 10 PM PST            3.83             48         +              Normal
  02/18/2026 11 PM PST            3.85             50         +              Normal
  02/19/2026 12 AM PST            3.88             52         +              Normal
  02/19/2026 01 AM PST            3.91             54         +              Normal
  02/19/2026 02 AM PST            3.92             55         +              Normal
  02/19/2026 03 AM PST            3.93             55         +              Normal
  02/19/2026 04 AM PST            3.96             58         +              Normal
  02/19/2026 05 AM PST            4.01             62         +              Normal
  02/19/2026 06 AM PST            4.06             65         +              Normal
  02/19/2026 07 AM PST            4.09             68         +              Normal
  02/19/2026 08 AM PST            4.12             70         +              Normal
  02/19/2026 09 AM PST            4.14             72         +              Normal
  02/19/2026 10 AM PST            4.16             74         +              Normal
  02/19/2026 11 AM PST            4.18             75         +              Normal
  02/19/2026 12 PM PST            4.20             77         +              Normal
  02/19/2026 01 PM PST            4.22             79         +              Normal
  02/19/2026 02 PM PST            4.22             79         0              Normal
  02/19/2026 03 PM PST            4.22             79         0              Normal
  02/19/2026 04 PM PST            4.20             77         -              Normal
  02/19/2026 05 PM PST            4.15             73         -              Normal
  02/19/2026 06 PM PST            4.10             69         -              Normal
  02/19/2026 07 PM PST            4.07             66         -              Normal
  02/19/2026 08 PM PST            4.04             64         -              Normal
  02/19/2026 09 PM PST            4.03             63         -              Normal
  02/19/2026 10 PM PST            4.01             62         -              Normal
  02/19/2026 11 PM PST            3.98             59         -              Normal
  02/20/2026 12 AM PST            3.95             57         -              Normal
  02/20/2026 01 AM PST            3.92             55         -              Normal
  02/20/2026 02 AM PST            3.91             54         -              Normal
  02/20/2026 03 AM PST            3.89             53         -              Normal
  02/20/2026 04 AM PST            3.88             52         -              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.