SAN LORENZO CREEK - HAYWARD (LRZC1)
Latitude: 37.69º NLongitude: 122.06º WElevation: 133 Feet
Location: Alameda County in CaliforniaBulletin Group: Central CoastRiver Group: South Bay
Issuance Time: Jan 22 2026 at 1:23 PM PSTNext Issuance: Jan 23 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:  01/22/2026 at 01:25 PM PST
# Data Interval:  1 Hour
#
# Most Recent Date & Time of Maximum Observed:  01/18/2026 at 02:00 AM PST
# Maximum Observed Stage:                       2.95 Feet
# Maximum Observed Flow:                        12 cfs
#
# Earliest Date & Time of Maximum Forecast:     01/22/2026 at 02:00 PM PST
# Maximum Forecast Stage:                       2.91 Feet
# Maximum Forecast Flow:                        11 cfs
#
# OBSERVED
#
# Date & Time  (Local)    Stage (Feet)     Flow (cfs)     Trend     Observed Status
# ---------------------------------------------------------------------------------
  01/17/2026 01 PM PST            2.95             12                        Normal
  01/17/2026 02 PM PST            2.95             12         0              Normal
  01/17/2026 03 PM PST            2.95             12         0              Normal
  01/17/2026 04 PM PST            2.95             12         0              Normal
  01/17/2026 05 PM PST            2.95             12         0              Normal
  01/17/2026 06 PM PST            2.95             12         0              Normal
  01/17/2026 07 PM PST            2.95             12         0              Normal
  01/17/2026 08 PM PST            2.95             12         0              Normal
  01/17/2026 09 PM PST            2.95             12         0              Normal
  01/17/2026 10 PM PST            2.95             12         0              Normal
  01/17/2026 11 PM PST            2.95             12         0              Normal
  01/18/2026 12 AM PST            2.95             12         0              Normal
  01/18/2026 01 AM PST            2.94             12         -              Normal
  01/18/2026 02 AM PST            2.95             12         +              Normal
  01/18/2026 03 AM PST            2.94             12         -              Normal
  01/18/2026 04 AM PST            2.94             12         0              Normal
  01/18/2026 05 AM PST            2.94             12         0              Normal
  01/18/2026 06 AM PST            2.94             12         0              Normal
  01/18/2026 07 AM PST            2.94             12         0              Normal
  01/18/2026 08 AM PST            2.94             12         0              Normal
  01/18/2026 09 AM PST            2.94             12         0              Normal
  01/18/2026 10 AM PST            2.94             12         0              Normal
  01/18/2026 11 AM PST            2.94             12         0              Normal
  01/18/2026 12 PM PST            2.94             12         0              Normal
  01/18/2026 01 PM PST            2.94             12         0              Normal
  01/18/2026 02 PM PST            2.94             12         0              Normal
  01/18/2026 03 PM PST            2.94             12         0              Normal
  01/18/2026 04 PM PST            2.94             12         0              Normal
  01/18/2026 05 PM PST            2.94             12         0              Normal
  01/18/2026 06 PM PST            2.94             12         0              Normal
  01/18/2026 07 PM PST            2.94             12         0              Normal
  01/18/2026 08 PM PST            2.94             12         0              Normal
  01/18/2026 09 PM PST            2.94             12         0              Normal
  01/18/2026 10 PM PST            2.94             12         0              Normal
  01/18/2026 11 PM PST            2.94             12         0              Normal
  01/19/2026 12 AM PST            2.94             12         0              Normal
  01/19/2026 01 AM PST            2.93             12         -              Normal
  01/19/2026 02 AM PST            2.93             12         0              Normal
  01/19/2026 03 AM PST            2.93             12         0              Normal
  01/19/2026 04 AM PST            2.93             12         0              Normal
  01/19/2026 05 AM PST            2.93             12         0              Normal
  01/19/2026 06 AM PST            2.93             12         0              Normal
  01/19/2026 07 AM PST            2.93             12         0              Normal
  01/19/2026 08 AM PST            2.93             12         0              Normal
  01/19/2026 09 AM PST            2.93             12         0              Normal
  01/19/2026 10 AM PST            2.93             12         0              Normal
  01/19/2026 11 AM PST            2.93             12         0              Normal
  01/19/2026 12 PM PST            2.93             12         0              Normal
  01/19/2026 01 PM PST            2.93             12         0              Normal
  01/19/2026 02 PM PST            2.93             12         0              Normal
  01/19/2026 03 PM PST            2.93             12         0              Normal
  01/19/2026 04 PM PST            2.94             12         +              Normal
  01/19/2026 05 PM PST            2.93             12         -              Normal
  01/19/2026 06 PM PST            2.93             12         0              Normal
  01/19/2026 07 PM PST            2.94             12         +              Normal
  01/19/2026 08 PM PST            2.93             12         -              Normal
  01/19/2026 09 PM PST            2.93             12         0              Normal
  01/19/2026 10 PM PST            2.93             12         0              Normal
  01/19/2026 11 PM PST            2.93             12         0              Normal
  01/20/2026 12 AM PST            2.93             12         0              Normal
  01/20/2026 01 AM PST            2.92             11         -              Normal
  01/20/2026 02 AM PST            2.92             11         0              Normal
  01/20/2026 03 AM PST            2.92             11         0              Normal
  01/20/2026 04 AM PST            2.92             11         0              Normal
  01/20/2026 05 AM PST            2.92             11         0              Normal
  01/20/2026 06 AM PST            2.92             11         0              Normal
  01/20/2026 07 AM PST            2.92             11         0              Normal
  01/20/2026 08 AM PST            2.92             11         0              Normal
  01/20/2026 09 AM PST            2.92             11         0              Normal
  01/20/2026 10 AM PST            2.91             11         -              Normal
  01/20/2026 11 AM PST            2.92             11         +              Normal
  01/20/2026 12 PM PST            2.92             11         0              Normal
  01/20/2026 01 PM PST            2.92             11         0              Normal
  01/20/2026 02 PM PST            2.92             11         0              Normal
  01/20/2026 03 PM PST            2.92             11         0              Normal
  01/20/2026 04 PM PST            2.92             11         0              Normal
  01/20/2026 05 PM PST            2.92             11         0              Normal
  01/20/2026 06 PM PST            2.92             11         0              Normal
  01/20/2026 07 PM PST            2.92             11         0              Normal
  01/20/2026 08 PM PST            2.91             11         -              Normal
  01/20/2026 09 PM PST            2.92             11         +              Normal
  01/20/2026 10 PM PST            2.91             11         -              Normal
  01/20/2026 11 PM PST            2.91             11         0              Normal
  01/21/2026 12 AM PST            2.91             11         0              Normal
  01/21/2026 01 AM PST            2.91             11         0              Normal
  01/21/2026 02 AM PST            2.91             11         0              Normal
  01/21/2026 03 AM PST            2.91             11         0              Normal
  01/21/2026 04 AM PST            2.91             11         0              Normal
  01/21/2026 05 AM PST            2.91             11         0              Normal
  01/21/2026 06 AM PST            2.91             11         0              Normal
  01/21/2026 07 AM PST            2.91             11         0              Normal
  01/21/2026 08 AM PST            2.91             11         0              Normal
  01/21/2026 09 AM PST            2.91             11         0              Normal
  01/21/2026 10 AM PST            2.91             11         0              Normal
  01/21/2026 11 AM PST            2.91             11         0              Normal
  01/21/2026 12 PM PST            2.91             11         0              Normal
  01/21/2026 01 PM PST            2.91             11         0              Normal
  01/21/2026 02 PM PST            2.91             11         0              Normal
  01/21/2026 03 PM PST            2.91             11         0              Normal
  01/21/2026 04 PM PST            2.91             11         0              Normal
  01/21/2026 05 PM PST            2.91             11         0              Normal
  01/21/2026 06 PM PST            2.91             11         0              Normal
  01/21/2026 07 PM PST            2.91             11         0              Normal
  01/21/2026 08 PM PST            2.92             11         +              Normal
  01/21/2026 09 PM PST            2.92             11         0              Normal
  01/21/2026 10 PM PST            2.92             11         0              Normal
  01/21/2026 11 PM PST            2.92             11         0              Normal
  01/22/2026 12 AM PST            2.91             11         -              Normal
  01/22/2026 01 AM PST            2.91             11         0              Normal
  01/22/2026 02 AM PST            2.91             11         0              Normal
  01/22/2026 03 AM PST            2.91             11         0              Normal
  01/22/2026 04 AM PST            2.91             11         0              Normal
  01/22/2026 05 AM PST            2.91             11         0              Normal
  01/22/2026 06 AM PST            2.91             11         0              Normal
  01/22/2026 07 AM PST            2.91             11         0              Normal
  01/22/2026 08 AM PST            2.91             11         0              Normal
  01/22/2026 09 AM PST            2.91             11         0              Normal
  01/22/2026 10 AM PST            2.91             11         0              Normal
  01/22/2026 11 AM PST            2.91             11         0              Normal
  01/22/2026 12 PM PST            2.91             11         0              Normal
  01/22/2026 01 PM PST            2.91             11         0              Normal
#
# FORECAST
#
# Date & Time  (Local)    Stage (Feet)     Flow (cfs)     Trend     Forecast Status
# ---------------------------------------------------------------------------------
  01/22/2026 02 PM PST            2.91             11                        Normal
  01/22/2026 03 PM PST            2.91             11         0              Normal
  01/22/2026 04 PM PST            2.91             11         0              Normal
  01/22/2026 05 PM PST            2.90             11         -              Normal
  01/22/2026 06 PM PST            2.90             11         0              Normal
  01/22/2026 07 PM PST            2.90             11         0              Normal
  01/22/2026 08 PM PST            2.90             11         0              Normal
  01/22/2026 09 PM PST            2.90             11         0              Normal
  01/22/2026 10 PM PST            2.90             11         0              Normal
  01/22/2026 11 PM PST            2.90             11         0              Normal
  01/23/2026 12 AM PST            2.90             11         0              Normal
  01/23/2026 01 AM PST            2.90             11         0              Normal
  01/23/2026 02 AM PST            2.90             11         0              Normal
  01/23/2026 03 AM PST            2.90             11         0              Normal
  01/23/2026 04 AM PST            2.90             11         0              Normal
  01/23/2026 05 AM PST            2.89             11         -              Normal
  01/23/2026 06 AM PST            2.89             11         0              Normal
  01/23/2026 07 AM PST            2.89             11         0              Normal
  01/23/2026 08 AM PST            2.89             11         0              Normal
  01/23/2026 09 AM PST            2.89             11         0              Normal
  01/23/2026 10 AM PST            2.89             11         0              Normal
  01/23/2026 11 AM PST            2.89             11         0              Normal
  01/23/2026 12 PM PST            2.89             11         0              Normal
  01/23/2026 01 PM PST            2.89             11         0              Normal
  01/23/2026 02 PM PST            2.89             11         0              Normal
  01/23/2026 03 PM PST            2.89             11         0              Normal
  01/23/2026 04 PM PST            2.88             11         -              Normal
  01/23/2026 05 PM PST            2.88             11         0              Normal
  01/23/2026 06 PM PST            2.88             11         0              Normal
  01/23/2026 07 PM PST            2.88             11         0              Normal
  01/23/2026 08 PM PST            2.88             11         0              Normal
  01/23/2026 09 PM PST            2.88             11         0              Normal
  01/23/2026 10 PM PST            2.88             11         0              Normal
  01/23/2026 11 PM PST            2.88             11         0              Normal
  01/24/2026 12 AM PST            2.88             11         0              Normal
  01/24/2026 01 AM PST            2.88             11         0              Normal
  01/24/2026 02 AM PST            2.88             11         0              Normal
  01/24/2026 03 AM PST            2.88             11         0              Normal
  01/24/2026 04 AM PST            2.88             11         0              Normal
  01/24/2026 05 AM PST            2.88             11         0              Normal
  01/24/2026 06 AM PST            2.87             10         -              Normal
  01/24/2026 07 AM PST            2.87             10         0              Normal
  01/24/2026 08 AM PST            2.87             10         0              Normal
  01/24/2026 09 AM PST            2.87             10         0              Normal
  01/24/2026 10 AM PST            2.87             10         0              Normal
  01/24/2026 11 AM PST            2.87             10         0              Normal
  01/24/2026 12 PM PST            2.87             10         0              Normal
  01/24/2026 01 PM PST            2.87             10         0              Normal
  01/24/2026 02 PM PST            2.87             10         0              Normal
  01/24/2026 03 PM PST            2.87             10         0              Normal
  01/24/2026 04 PM PST            2.87             10         0              Normal
  01/24/2026 05 PM PST            2.87             10         0              Normal
  01/24/2026 06 PM PST            2.87             10         0              Normal
  01/24/2026 07 PM PST            2.87             10         0              Normal
  01/24/2026 08 PM PST            2.87             10         0              Normal
  01/24/2026 09 PM PST            2.86             10         -              Normal
  01/24/2026 10 PM PST            2.86             10         0              Normal
  01/24/2026 11 PM PST            2.86             10         0              Normal
  01/25/2026 12 AM PST            2.86             10         0              Normal
  01/25/2026 01 AM PST            2.86             10         0              Normal
  01/25/2026 02 AM PST            2.86             10         0              Normal
  01/25/2026 03 AM PST            2.86             10         0              Normal
  01/25/2026 04 AM PST            2.86             10         0              Normal
  01/25/2026 05 AM PST            2.86             10         0              Normal
  01/25/2026 06 AM PST            2.86             10         0              Normal
  01/25/2026 07 AM PST            2.86             10         0              Normal
  01/25/2026 08 AM PST            2.86             10         0              Normal
  01/25/2026 09 AM PST            2.86             10         0              Normal
  01/25/2026 10 AM PST            2.86             10         0              Normal
  01/25/2026 11 AM PST            2.86             10         0              Normal
  01/25/2026 12 PM PST            2.86             10         0              Normal
  01/25/2026 01 PM PST            2.86             10         0              Normal
  01/25/2026 02 PM PST            2.86             10         0              Normal
  01/25/2026 03 PM PST            2.86             10         0              Normal
  01/25/2026 04 PM PST            2.86             10         0              Normal
  01/25/2026 05 PM PST            2.86             10         0              Normal
  01/25/2026 06 PM PST            2.85             10         -              Normal
  01/25/2026 07 PM PST            2.85             10         0              Normal
  01/25/2026 08 PM PST            2.85             10         0              Normal
  01/25/2026 09 PM PST            2.85             10         0              Normal
  01/25/2026 10 PM PST            2.85             10         0              Normal
  01/25/2026 11 PM PST            2.85             10         0              Normal
  01/26/2026 12 AM PST            2.85             10         0              Normal
  01/26/2026 01 AM PST            2.85             10         0              Normal
  01/26/2026 02 AM PST            2.85             10         0              Normal
  01/26/2026 03 AM PST            2.85             10         0              Normal
  01/26/2026 04 AM PST            2.85             10         0              Normal
  01/26/2026 05 AM PST            2.85             10         0              Normal
  01/26/2026 06 AM PST            2.85             10         0              Normal
  01/26/2026 07 AM PST            2.85             10         0              Normal
  01/26/2026 08 AM PST            2.85             10         0              Normal
  01/26/2026 09 AM PST            2.85             10         0              Normal
  01/26/2026 10 AM PST            2.85             10         0              Normal
  01/26/2026 11 AM PST            2.85             10         0              Normal
  01/26/2026 12 PM PST            2.85             10         0              Normal
  01/26/2026 01 PM PST            2.85             10         0              Normal
  01/26/2026 02 PM PST            2.85             10         0              Normal
  01/26/2026 03 PM PST            2.85             10         0              Normal
  01/26/2026 04 PM PST            2.85             10         0              Normal
  01/26/2026 05 PM PST            2.85             10         0              Normal
  01/26/2026 06 PM PST            2.85             10         0              Normal
  01/26/2026 07 PM PST            2.85             10         0              Normal
  01/26/2026 08 PM PST            2.85             10         0              Normal
  01/26/2026 09 PM PST            2.85             10         0              Normal
  01/26/2026 10 PM PST            2.85             10         0              Normal
  01/26/2026 11 PM PST            2.85             10         0              Normal
  01/27/2026 12 AM PST            2.85             10         0              Normal
  01/27/2026 01 AM PST            2.85             10         0              Normal
  01/27/2026 02 AM PST            2.85             10         0              Normal
  01/27/2026 03 AM PST            2.85             10         0              Normal
  01/27/2026 04 AM PST            2.85             10         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.