SAN LORENZO RIVER - BIG TREES (BTEC1)
Latitude: 37.04º NLongitude: 122.07º WElevation: 227 FeetForecast Type: Official Location
Location: Santa Cruz County in CaliforniaBulletin Group: Central CoastRiver Group: Salinas/Pajaro
Issuance Time: May 11 2026 at 7:19 AM PDTNext Issuance: May 12 2026 at 9:00 AM PDT
Action/Monitor: 14.0 FeetMinor Flood: 16.5 FeetModerate Flood: 19.5 FeetMajor Flood: 21.76 Feet

# Tabular Observed and Forecast Hydrograph Information
#
# Location: San Lorenzo River - Big Trees (BTEC1)
#
# File Generation Time:  05/11/2026 at 07:19 AM PDT
# Data Interval:  1 Hour
#
# Most Recent Date & Time of Maximum Observed:  05/06/2026 at 12:00 PM PDT
# Maximum Observed Stage:                       3.94 Feet
# Maximum Observed Flow:                        61 cfs
#
# Earliest Date & Time of Maximum Forecast:     05/11/2026 at 08:00 AM PDT
# Maximum Forecast Stage:                       3.82 Feet
# Maximum Forecast Flow:                        51 cfs
#
# OBSERVED
#
# Date & Time  (Local)    Stage (Feet)     Flow (cfs)     Trend     Observed Status
# ---------------------------------------------------------------------------------
  05/06/2026 07 AM PDT            3.94             61                        Normal
  05/06/2026 08 AM PDT            3.94             61         0              Normal
  05/06/2026 09 AM PDT            3.93             60         -              Normal
  05/06/2026 10 AM PDT            3.93             60         0              Normal
  05/06/2026 11 AM PDT            3.94             61         +              Normal
  05/06/2026 12 PM PDT            3.94             61         0              Normal
  05/06/2026 01 PM PDT            3.93             60         -              Normal
  05/06/2026 02 PM PDT            3.93             60         0              Normal
  05/06/2026 03 PM PDT            3.93             60         0              Normal
  05/06/2026 04 PM PDT            3.93             60         0              Normal
  05/06/2026 05 PM PDT            3.93             60         0              Normal
  05/06/2026 06 PM PDT            3.92             59         -              Normal
  05/06/2026 07 PM PDT            3.92             59         0              Normal
  05/06/2026 08 PM PDT            3.92             59         0              Normal
  05/06/2026 09 PM PDT            3.92             59         0              Normal
  05/06/2026 10 PM PDT            3.91             58         -              Normal
  05/06/2026 11 PM PDT            3.91             58         0              Normal
  05/07/2026 12 AM PDT            3.91             58         0              Normal
  05/07/2026 01 AM PDT            3.91             58         0              Normal
  05/07/2026 02 AM PDT            3.91             58         0              Normal
  05/07/2026 03 AM PDT            3.91             58         0              Normal
  05/07/2026 04 AM PDT            3.91             58         0              Normal
  05/07/2026 05 AM PDT            3.91             58         0              Normal
  05/07/2026 06 AM PDT            3.91             58         0              Normal
  05/07/2026 07 AM PDT            3.91             58         0              Normal
  05/07/2026 08 AM PDT            3.91             58         0              Normal
  05/07/2026 09 AM PDT            3.90             57         -              Normal
  05/07/2026 10 AM PDT            3.91             58         +              Normal
  05/07/2026 11 AM PDT            3.91             58         0              Normal
  05/07/2026 12 PM PDT            3.91             58         0              Normal
  05/07/2026 01 PM PDT            3.91             58         0              Normal
  05/07/2026 02 PM PDT            3.91             58         0              Normal
  05/07/2026 03 PM PDT            3.91             58         0              Normal
  05/07/2026 04 PM PDT            3.90             57         -              Normal
  05/07/2026 05 PM PDT            3.90             57         0              Normal
  05/07/2026 06 PM PDT            3.90             57         0              Normal
  05/07/2026 07 PM PDT            3.89             57         -              Normal
  05/07/2026 08 PM PDT            3.89             57         0              Normal
  05/07/2026 09 PM PDT            3.89             57         0              Normal
  05/07/2026 10 PM PDT            3.89             57         0              Normal
  05/07/2026 11 PM PDT            3.88             56         -              Normal
  05/08/2026 12 AM PDT            3.87             55         -              Normal
  05/08/2026 01 AM PDT            3.87             55         0              Normal
  05/08/2026 02 AM PDT            3.88             56         +              Normal
  05/08/2026 03 AM PDT            3.88             56         0              Normal
  05/08/2026 04 AM PDT            3.88             56         0              Normal
  05/08/2026 05 AM PDT            3.88             56         0              Normal
  05/08/2026 06 AM PDT            3.88             56         0              Normal
  05/08/2026 07 AM PDT            3.89             57         +              Normal
  05/08/2026 08 AM PDT            3.88             56         -              Normal
  05/08/2026 09 AM PDT            3.88             56         0              Normal
  05/08/2026 10 AM PDT            3.88             56         0              Normal
  05/08/2026 11 AM PDT            3.88             56         0              Normal
  05/08/2026 12 PM PDT            3.88             56         0              Normal
  05/08/2026 01 PM PDT            3.88             56         0              Normal
  05/08/2026 02 PM PDT            3.89             57         +              Normal
  05/08/2026 03 PM PDT            3.88             56         -              Normal
  05/08/2026 04 PM PDT            3.87             55         -              Normal
  05/08/2026 05 PM PDT            3.87             55         0              Normal
  05/08/2026 06 PM PDT            3.86             54         -              Normal
  05/08/2026 07 PM PDT            3.86             54         0              Normal
  05/08/2026 08 PM PDT            3.86             54         0              Normal
  05/08/2026 09 PM PDT            3.86             54         0              Normal
  05/08/2026 10 PM PDT            3.86             54         0              Normal
  05/08/2026 11 PM PDT            3.86             54         0              Normal
  05/09/2026 12 AM PDT            3.85             53         -              Normal
  05/09/2026 01 AM PDT            3.86             54         +              Normal
  05/09/2026 02 AM PDT            3.86             54         0              Normal
  05/09/2026 03 AM PDT            3.85             53         -              Normal
  05/09/2026 04 AM PDT            3.85             53         0              Normal
  05/09/2026 05 AM PDT            3.85             53         0              Normal
  05/09/2026 06 AM PDT            3.85             53         0              Normal
  05/09/2026 07 AM PDT            3.85             53         0              Normal
  05/09/2026 08 AM PDT            3.85             53         0              Normal
  05/09/2026 09 AM PDT            3.85             53         0              Normal
  05/09/2026 10 AM PDT            3.85             53         0              Normal
  05/09/2026 11 AM PDT            3.86             54         +              Normal
  05/09/2026 12 PM PDT            3.85             53         -              Normal
  05/09/2026 01 PM PDT            3.85             53         0              Normal
  05/09/2026 02 PM PDT            3.85             53         0              Normal
  05/09/2026 03 PM PDT            3.85             53         0              Normal
  05/09/2026 04 PM PDT            3.85             53         0              Normal
  05/09/2026 05 PM PDT            3.85             53         0              Normal
  05/09/2026 06 PM PDT            3.84             52         -              Normal
  05/09/2026 07 PM PDT            3.84             52         0              Normal
  05/09/2026 08 PM PDT            3.84             52         0              Normal
  05/09/2026 09 PM PDT            3.84             52         0              Normal
  05/09/2026 10 PM PDT            3.84             52         0              Normal
  05/09/2026 11 PM PDT            3.84             52         0              Normal
  05/10/2026 12 AM PDT            3.83             52         -              Normal
  05/10/2026 01 AM PDT            3.83             52         0              Normal
  05/10/2026 02 AM PDT            3.84             52         +              Normal
  05/10/2026 03 AM PDT            3.83             52         -              Normal
  05/10/2026 04 AM PDT            3.84             52         +              Normal
  05/10/2026 05 AM PDT            3.83             52         -              Normal
  05/10/2026 06 AM PDT            3.83             52         0              Normal
  05/10/2026 07 AM PDT            3.83             52         0              Normal
  05/10/2026 08 AM PDT            3.83             52         0              Normal
  05/10/2026 09 AM PDT            3.83             52         0              Normal
  05/10/2026 10 AM PDT            3.83             52         0              Normal
  05/10/2026 11 AM PDT            3.84             52         +              Normal
  05/10/2026 12 PM PDT            3.84             52         0              Normal
  05/10/2026 01 PM PDT            3.84             52         0              Normal
  05/10/2026 02 PM PDT            3.83             52         -              Normal
  05/10/2026 03 PM PDT            3.83             52         0              Normal
  05/10/2026 04 PM PDT            3.83             52         0              Normal
  05/10/2026 05 PM PDT            3.83             52         0              Normal
  05/10/2026 06 PM PDT            3.82             51         -              Normal
  05/10/2026 07 PM PDT            3.82             51         0              Normal
  05/10/2026 08 PM PDT            3.82             51         0              Normal
  05/10/2026 09 PM PDT            3.82             51         0              Normal
  05/10/2026 10 PM PDT            3.82             51         0              Normal
  05/10/2026 11 PM PDT            3.82             51         0              Normal
  05/11/2026 12 AM PDT            3.82             51         0              Normal
  05/11/2026 01 AM PDT            3.82             51         0              Normal
  05/11/2026 02 AM PDT            3.82             51         0              Normal
  05/11/2026 03 AM PDT            3.82             51         0              Normal
  05/11/2026 04 AM PDT            3.82             51         0              Normal
  05/11/2026 05 AM PDT            3.82             51         0              Normal
  05/11/2026 06 AM PDT            3.82             51         0              Normal
  05/11/2026 07 AM PDT            3.82             51         0              Normal
#
# FORECAST
#
# Date & Time  (Local)    Stage (Feet)     Flow (cfs)     Trend     Forecast Status
# ---------------------------------------------------------------------------------
  05/11/2026 08 AM PDT            3.82             51                        Normal
  05/11/2026 09 AM PDT            3.82             51         0              Normal
  05/11/2026 10 AM PDT            3.82             51         0              Normal
  05/11/2026 11 AM PDT            3.82             51         0              Normal
  05/11/2026 12 PM PDT            3.81             50         -              Normal
  05/11/2026 01 PM PDT            3.81             50         0              Normal
  05/11/2026 02 PM PDT            3.81             50         0              Normal
  05/11/2026 03 PM PDT            3.81             50         0              Normal
  05/11/2026 04 PM PDT            3.81             50         0              Normal
  05/11/2026 05 PM PDT            3.81             50         0              Normal
  05/11/2026 06 PM PDT            3.81             50         0              Normal
  05/11/2026 07 PM PDT            3.81             50         0              Normal
  05/11/2026 08 PM PDT            3.81             50         0              Normal
  05/11/2026 09 PM PDT            3.81             50         0              Normal
  05/11/2026 10 PM PDT            3.81             50         0              Normal
  05/11/2026 11 PM PDT            3.81             50         0              Normal
  05/12/2026 12 AM PDT            3.80             49         -              Normal
  05/12/2026 01 AM PDT            3.80             49         0              Normal
  05/12/2026 02 AM PDT            3.80             49         0              Normal
  05/12/2026 03 AM PDT            3.80             49         0              Normal
  05/12/2026 04 AM PDT            3.80             49         0              Normal
  05/12/2026 05 AM PDT            3.80             49         0              Normal
  05/12/2026 06 AM PDT            3.80             49         0              Normal
  05/12/2026 07 AM PDT            3.80             49         0              Normal
  05/12/2026 08 AM PDT            3.80             49         0              Normal
  05/12/2026 09 AM PDT            3.80             49         0              Normal
  05/12/2026 10 AM PDT            3.79             49         -              Normal
  05/12/2026 11 AM PDT            3.79             49         0              Normal
  05/12/2026 12 PM PDT            3.79             49         0              Normal
  05/12/2026 01 PM PDT            3.79             49         0              Normal
  05/12/2026 02 PM PDT            3.79             49         0              Normal
  05/12/2026 03 PM PDT            3.79             49         0              Normal
  05/12/2026 04 PM PDT            3.79             49         0              Normal
  05/12/2026 05 PM PDT            3.79             49         0              Normal
  05/12/2026 06 PM PDT            3.79             49         0              Normal
  05/12/2026 07 PM PDT            3.79             49         0              Normal
  05/12/2026 08 PM PDT            3.79             49         0              Normal
  05/12/2026 09 PM PDT            3.79             49         0              Normal
  05/12/2026 10 PM PDT            3.78             48         -              Normal
  05/12/2026 11 PM PDT            3.78             48         0              Normal
  05/13/2026 12 AM PDT            3.78             48         0              Normal
  05/13/2026 01 AM PDT            3.78             48         0              Normal
  05/13/2026 02 AM PDT            3.78             48         0              Normal
  05/13/2026 03 AM PDT            3.78             48         0              Normal
  05/13/2026 04 AM PDT            3.78             48         0              Normal
  05/13/2026 05 AM PDT            3.78             48         0              Normal
  05/13/2026 06 AM PDT            3.78             48         0              Normal
  05/13/2026 07 AM PDT            3.78             48         0              Normal
  05/13/2026 08 AM PDT            3.77             47         -              Normal
  05/13/2026 09 AM PDT            3.77             47         0              Normal
  05/13/2026 10 AM PDT            3.77             47         0              Normal
  05/13/2026 11 AM PDT            3.77             47         0              Normal
  05/13/2026 12 PM PDT            3.77             47         0              Normal
  05/13/2026 01 PM PDT            3.77             47         0              Normal
  05/13/2026 02 PM PDT            3.77             47         0              Normal
  05/13/2026 03 PM PDT            3.77             47         0              Normal
  05/13/2026 04 PM PDT            3.77             47         0              Normal
  05/13/2026 05 PM PDT            3.77             47         0              Normal
  05/13/2026 06 PM PDT            3.77             47         0              Normal
  05/13/2026 07 PM PDT            3.77             47         0              Normal
  05/13/2026 08 PM PDT            3.76             46         -              Normal
  05/13/2026 09 PM PDT            3.76             46         0              Normal
  05/13/2026 10 PM PDT            3.76             46         0              Normal
  05/13/2026 11 PM PDT            3.76             46         0              Normal
  05/14/2026 12 AM PDT            3.76             46         0              Normal
  05/14/2026 01 AM PDT            3.76             46         0              Normal
  05/14/2026 02 AM PDT            3.76             46         0              Normal
  05/14/2026 03 AM PDT            3.76             46         0              Normal
  05/14/2026 04 AM PDT            3.76             46         0              Normal
  05/14/2026 05 AM PDT            3.76             46         0              Normal
  05/14/2026 06 AM PDT            3.75             45         -              Normal
  05/14/2026 07 AM PDT            3.75             45         0              Normal
  05/14/2026 08 AM PDT            3.75             45         0              Normal
  05/14/2026 09 AM PDT            3.75             45         0              Normal
  05/14/2026 10 AM PDT            3.75             45         0              Normal
  05/14/2026 11 AM PDT            3.75             45         0              Normal
  05/14/2026 12 PM PDT            3.75             45         0              Normal
  05/14/2026 01 PM PDT            3.75             45         0              Normal
  05/14/2026 02 PM PDT            3.75             45         0              Normal
  05/14/2026 03 PM PDT            3.75             45         0              Normal
  05/14/2026 04 PM PDT            3.75             45         0              Normal
  05/14/2026 05 PM PDT            3.75             45         0              Normal
  05/14/2026 06 PM PDT            3.74             45         -              Normal
  05/14/2026 07 PM PDT            3.74             45         0              Normal
  05/14/2026 08 PM PDT            3.74             45         0              Normal
  05/14/2026 09 PM PDT            3.74             45         0              Normal
  05/14/2026 10 PM PDT            3.74             45         0              Normal
  05/14/2026 11 PM PDT            3.74             45         0              Normal
  05/15/2026 12 AM PDT            3.74             45         0              Normal
  05/15/2026 01 AM PDT            3.74             45         0              Normal
  05/15/2026 02 AM PDT            3.74             45         0              Normal
  05/15/2026 03 AM PDT            3.73             44         -              Normal
  05/15/2026 04 AM PDT            3.73             44         0              Normal
  05/15/2026 05 AM PDT            3.73             44         0              Normal
  05/15/2026 06 AM PDT            3.73             44         0              Normal
  05/15/2026 07 AM PDT            3.73             44         0              Normal
  05/15/2026 08 AM PDT            3.73             44         0              Normal
  05/15/2026 09 AM PDT            3.73             44         0              Normal
  05/15/2026 10 AM PDT            3.73             44         0              Normal
  05/15/2026 11 AM PDT            3.73             44         0              Normal
  05/15/2026 12 PM PDT            3.73             44         0              Normal
  05/15/2026 01 PM PDT            3.73             44         0              Normal
  05/15/2026 02 PM PDT            3.73             44         0              Normal
  05/15/2026 03 PM PDT            3.72             43         -              Normal
  05/15/2026 04 PM PDT            3.72             43         0              Normal
  05/15/2026 05 PM PDT            3.72             43         0              Normal
  05/15/2026 06 PM PDT            3.72             43         0              Normal
  05/15/2026 07 PM PDT            3.72             43         0              Normal
  05/15/2026 08 PM PDT            3.72             43         0              Normal
  05/15/2026 09 PM PDT            3.72             43         0              Normal
  05/15/2026 10 PM PDT            3.72             43         0              Normal
  05/15/2026 11 PM PDT            3.72             43         0              Normal
  05/16/2026 12 AM PDT            3.72             43         0              Normal
  05/16/2026 01 AM PDT            3.71             43         -              Normal
  05/16/2026 02 AM PDT            3.71             43         0              Normal
  05/16/2026 03 AM PDT            3.71             43         0              Normal
  05/16/2026 04 AM PDT            3.71             43         0              Normal
  05/16/2026 05 AM PDT            3.71             43         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.