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 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: Apr 06 2026 at 1:10 PM PDTNext Issuance: Apr 07 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:  04/06/2026 at 01:11 PM PDT
# Data Interval:  1 Hour
#
# Most Recent Date & Time of Maximum Observed:  04/02/2026 at 03:00 AM PDT
# Maximum Observed Stage:                       4.09 Feet
# Maximum Observed Flow:                        71 cfs
#
# Earliest Date & Time of Maximum Forecast:     04/10/2026 at 11:00 PM PDT
# Maximum Forecast Stage:                       4.15 Feet
# Maximum Forecast Flow:                        77 cfs
#
# OBSERVED
#
# Date & Time  (Local)    Stage (Feet)     Flow (cfs)     Trend     Observed Status
# ---------------------------------------------------------------------------------
  04/01/2026 01 PM PDT            3.99             61                        Normal
  04/01/2026 02 PM PDT            3.99             61         0              Normal
  04/01/2026 03 PM PDT            3.99             61         0              Normal
  04/01/2026 04 PM PDT            3.99             61         0              Normal
  04/01/2026 05 PM PDT            3.99             61         0              Normal
  04/01/2026 06 PM PDT            3.96             59         -              Normal
  04/01/2026 07 PM PDT            3.97             60         +              Normal
  04/01/2026 08 PM PDT            3.97             60         0              Normal
  04/01/2026 09 PM PDT            3.97             60         0              Normal
  04/01/2026 10 PM PDT            3.97             60         0              Normal
  04/01/2026 11 PM PDT            3.97             60         0              Normal
  04/02/2026 12 AM PDT            3.98             61         +              Normal
  04/02/2026 01 AM PDT            4.03             65         +              Normal
  04/02/2026 02 AM PDT            4.05             67         +              Normal
  04/02/2026 03 AM PDT            4.09             71         +              Normal
  04/02/2026 04 AM PDT            4.05             67         -              Normal
  04/02/2026 05 AM PDT            4.05             67         0              Normal
  04/02/2026 06 AM PDT            4.05             67         0              Normal
  04/02/2026 07 AM PDT            4.05             67         0              Normal
  04/02/2026 08 AM PDT            4.07             69         +              Normal
  04/02/2026 09 AM PDT            4.07             69         0              Normal
  04/02/2026 10 AM PDT            4.07             69         0              Normal
  04/02/2026 11 AM PDT            4.07             69         0              Normal
  04/02/2026 12 PM PDT            4.08             70         +              Normal
  04/02/2026 01 PM PDT            4.08             70         0              Normal
  04/02/2026 02 PM PDT            4.07             69         -              Normal
  04/02/2026 03 PM PDT            4.06             68         -              Normal
  04/02/2026 04 PM PDT            4.04             66         -              Normal
  04/02/2026 05 PM PDT            4.04             66         0              Normal
  04/02/2026 06 PM PDT            4.03             65         -              Normal
  04/02/2026 07 PM PDT            4.03             65         0              Normal
  04/02/2026 08 PM PDT            4.03             65         0              Normal
  04/02/2026 09 PM PDT            4.03             65         0              Normal
  04/02/2026 10 PM PDT            4.02             64         -              Normal
  04/02/2026 11 PM PDT            4.02             64         0              Normal
  04/03/2026 12 AM PDT            4.02             64         0              Normal
  04/03/2026 01 AM PDT            4.02             64         0              Normal
  04/03/2026 02 AM PDT            4.01             63         -              Normal
  04/03/2026 03 AM PDT            4.01             63         0              Normal
  04/03/2026 04 AM PDT            4.01             63         0              Normal
  04/03/2026 05 AM PDT            4.01             63         0              Normal
  04/03/2026 06 AM PDT            4.00             62         -              Normal
  04/03/2026 07 AM PDT            4.00             62         0              Normal
  04/03/2026 08 AM PDT            4.00             62         0              Normal
  04/03/2026 09 AM PDT            4.00             62         0              Normal
  04/03/2026 10 AM PDT            4.00             62         0              Normal
  04/03/2026 11 AM PDT            4.00             62         0              Normal
  04/03/2026 12 PM PDT            4.00             62         0              Normal
  04/03/2026 01 PM PDT            4.01             63         +              Normal
  04/03/2026 02 PM PDT            4.00             62         -              Normal
  04/03/2026 03 PM PDT            3.99             61         -              Normal
  04/03/2026 04 PM PDT            3.99             61         0              Normal
  04/03/2026 05 PM PDT            3.99             61         0              Normal
  04/03/2026 06 PM PDT            3.99             61         0              Normal
  04/03/2026 07 PM PDT            3.98             61         -              Normal
  04/03/2026 08 PM PDT            3.98             61         0              Normal
  04/03/2026 09 PM PDT            3.98             61         0              Normal
  04/03/2026 10 PM PDT            3.98             61         0              Normal
  04/03/2026 11 PM PDT            3.98             61         0              Normal
  04/04/2026 12 AM PDT            3.98             61         0              Normal
  04/04/2026 01 AM PDT            3.98             61         0              Normal
  04/04/2026 02 AM PDT            3.98             61         0              Normal
  04/04/2026 03 AM PDT            3.98             61         0              Normal
  04/04/2026 04 AM PDT            3.98             61         0              Normal
  04/04/2026 05 AM PDT            3.98             61         0              Normal
  04/04/2026 06 AM PDT            3.98             61         0              Normal
  04/04/2026 07 AM PDT            3.98             61         0              Normal
  04/04/2026 08 AM PDT            3.98             61         0              Normal
  04/04/2026 09 AM PDT            3.98             61         0              Normal
  04/04/2026 10 AM PDT            3.98             61         0              Normal
  04/04/2026 11 AM PDT            3.98             61         0              Normal
  04/04/2026 12 PM PDT            3.99             61         +              Normal
  04/04/2026 01 PM PDT            3.94             57         -              Normal
  04/04/2026 02 PM PDT            3.98             61         +              Normal
  04/04/2026 03 PM PDT            3.98             61         0              Normal
  04/04/2026 04 PM PDT            3.97             60         -              Normal
  04/04/2026 05 PM PDT            3.98             61         +              Normal
  04/04/2026 06 PM PDT            3.97             60         -              Normal
  04/04/2026 07 PM PDT            3.97             60         0              Normal
  04/04/2026 08 PM PDT            3.97             60         0              Normal
  04/04/2026 09 PM PDT            3.97             60         0              Normal
  04/04/2026 10 PM PDT            3.97             60         0              Normal
  04/04/2026 11 PM PDT            3.97             60         0              Normal
  04/05/2026 12 AM PDT            3.97             60         0              Normal
  04/05/2026 01 AM PDT            3.97             60         0              Normal
  04/05/2026 02 AM PDT            3.97             60         0              Normal
  04/05/2026 03 AM PDT            3.96             59         -              Normal
  04/05/2026 04 AM PDT            3.97             60         +              Normal
  04/05/2026 05 AM PDT            3.97             60         0              Normal
  04/05/2026 06 AM PDT            3.97             60         0              Normal
  04/05/2026 07 AM PDT            3.97             60         0              Normal
  04/05/2026 08 AM PDT            3.97             60         0              Normal
  04/05/2026 09 AM PDT            3.97             60         0              Normal
  04/05/2026 10 AM PDT            3.96             59         -              Normal
  04/05/2026 11 AM PDT            3.97             60         +              Normal
  04/05/2026 12 PM PDT            3.97             60         0              Normal
  04/05/2026 01 PM PDT            3.96             59         -              Normal
  04/05/2026 02 PM PDT            3.96             59         0              Normal
  04/05/2026 03 PM PDT            3.96             59         0              Normal
  04/05/2026 04 PM PDT            3.95             58         -              Normal
  04/05/2026 05 PM PDT            3.93             56         -              Normal
  04/05/2026 06 PM PDT            3.95             58         +              Normal
  04/05/2026 07 PM PDT            3.95             58         0              Normal
  04/05/2026 08 PM PDT            3.95             58         0              Normal
  04/05/2026 09 PM PDT            3.95             58         0              Normal
  04/05/2026 10 PM PDT            3.95             58         0              Normal
  04/05/2026 11 PM PDT            3.95             58         0              Normal
  04/06/2026 12 AM PDT            3.95             58         0              Normal
  04/06/2026 01 AM PDT            3.95             58         0              Normal
  04/06/2026 02 AM PDT            3.95             58         0              Normal
  04/06/2026 03 AM PDT            3.95             58         0              Normal
  04/06/2026 04 AM PDT            3.95             58         0              Normal
  04/06/2026 05 AM PDT            3.95             58         0              Normal
  04/06/2026 06 AM PDT            3.94             57         -              Normal
  04/06/2026 07 AM PDT            3.94             57         0              Normal
  04/06/2026 08 AM PDT            3.94             57         0              Normal
  04/06/2026 09 AM PDT            3.94             57         0              Normal
  04/06/2026 10 AM PDT            3.94             57         0              Normal
  04/06/2026 11 AM PDT            3.94             57         0              Normal
  04/06/2026 12 PM PDT            3.94             57         0              Normal
  04/06/2026 01 PM PDT            3.94             57         0              Normal
#
# FORECAST
#
# Date & Time  (Local)    Stage (Feet)     Flow (cfs)     Trend     Forecast Status
# ---------------------------------------------------------------------------------
  04/06/2026 02 PM PDT            3.94             57                        Normal
  04/06/2026 03 PM PDT            3.94             57         0              Normal
  04/06/2026 04 PM PDT            3.94             57         0              Normal
  04/06/2026 05 PM PDT            3.94             57         0              Normal
  04/06/2026 06 PM PDT            3.94             57         0              Normal
  04/06/2026 07 PM PDT            3.94             57         0              Normal
  04/06/2026 08 PM PDT            3.94             57         0              Normal
  04/06/2026 09 PM PDT            3.94             57         0              Normal
  04/06/2026 10 PM PDT            3.94             57         0              Normal
  04/06/2026 11 PM PDT            3.94             57         0              Normal
  04/07/2026 12 AM PDT            3.93             56         -              Normal
  04/07/2026 01 AM PDT            3.93             56         0              Normal
  04/07/2026 02 AM PDT            3.93             56         0              Normal
  04/07/2026 03 AM PDT            3.93             56         0              Normal
  04/07/2026 04 AM PDT            3.93             56         0              Normal
  04/07/2026 05 AM PDT            3.93             56         0              Normal
  04/07/2026 06 AM PDT            3.93             56         0              Normal
  04/07/2026 07 AM PDT            3.93             56         0              Normal
  04/07/2026 08 AM PDT            3.93             56         0              Normal
  04/07/2026 09 AM PDT            3.93             56         0              Normal
  04/07/2026 10 AM PDT            3.93             56         0              Normal
  04/07/2026 11 AM PDT            3.93             56         0              Normal
  04/07/2026 12 PM PDT            3.93             56         0              Normal
  04/07/2026 01 PM PDT            3.93             56         0              Normal
  04/07/2026 02 PM PDT            3.93             56         0              Normal
  04/07/2026 03 PM PDT            3.93             56         0              Normal
  04/07/2026 04 PM PDT            3.93             56         0              Normal
  04/07/2026 05 PM PDT            3.92             55         -              Normal
  04/07/2026 06 PM PDT            3.92             55         0              Normal
  04/07/2026 07 PM PDT            3.92             55         0              Normal
  04/07/2026 08 PM PDT            3.92             55         0              Normal
  04/07/2026 09 PM PDT            3.92             55         0              Normal
  04/07/2026 10 PM PDT            3.92             55         0              Normal
  04/07/2026 11 PM PDT            3.92             55         0              Normal
  04/08/2026 12 AM PDT            3.92             55         0              Normal
  04/08/2026 01 AM PDT            3.92             55         0              Normal
  04/08/2026 02 AM PDT            3.92             55         0              Normal
  04/08/2026 03 AM PDT            3.92             55         0              Normal
  04/08/2026 04 AM PDT            3.92             55         0              Normal
  04/08/2026 05 AM PDT            3.92             55         0              Normal
  04/08/2026 06 AM PDT            3.92             55         0              Normal
  04/08/2026 07 AM PDT            3.92             55         0              Normal
  04/08/2026 08 AM PDT            3.92             55         0              Normal
  04/08/2026 09 AM PDT            3.92             55         0              Normal
  04/08/2026 10 AM PDT            3.92             55         0              Normal
  04/08/2026 11 AM PDT            3.92             55         0              Normal
  04/08/2026 12 PM PDT            3.92             55         0              Normal
  04/08/2026 01 PM PDT            3.92             55         0              Normal
  04/08/2026 02 PM PDT            3.92             55         0              Normal
  04/08/2026 03 PM PDT            3.91             55         -              Normal
  04/08/2026 04 PM PDT            3.91             55         0              Normal
  04/08/2026 05 PM PDT            3.91             55         0              Normal
  04/08/2026 06 PM PDT            3.91             55         0              Normal
  04/08/2026 07 PM PDT            3.91             55         0              Normal
  04/08/2026 08 PM PDT            3.91             55         0              Normal
  04/08/2026 09 PM PDT            3.91             55         0              Normal
  04/08/2026 10 PM PDT            3.91             55         0              Normal
  04/08/2026 11 PM PDT            3.91             55         0              Normal
  04/09/2026 12 AM PDT            3.91             55         0              Normal
  04/09/2026 01 AM PDT            3.91             55         0              Normal
  04/09/2026 02 AM PDT            3.91             55         0              Normal
  04/09/2026 03 AM PDT            3.91             55         0              Normal
  04/09/2026 04 AM PDT            3.91             55         0              Normal
  04/09/2026 05 AM PDT            3.91             55         0              Normal
  04/09/2026 06 AM PDT            3.91             55         0              Normal
  04/09/2026 07 AM PDT            3.91             55         0              Normal
  04/09/2026 08 AM PDT            3.91             55         0              Normal
  04/09/2026 09 AM PDT            3.91             55         0              Normal
  04/09/2026 10 AM PDT            3.90             54         -              Normal
  04/09/2026 11 AM PDT            3.90             54         0              Normal
  04/09/2026 12 PM PDT            3.90             54         0              Normal
  04/09/2026 01 PM PDT            3.90             54         0              Normal
  04/09/2026 02 PM PDT            3.90             54         0              Normal
  04/09/2026 03 PM PDT            3.90             54         0              Normal
  04/09/2026 04 PM PDT            3.90             54         0              Normal
  04/09/2026 05 PM PDT            3.90             54         0              Normal
  04/09/2026 06 PM PDT            3.91             55         +              Normal
  04/09/2026 07 PM PDT            3.92             55         +              Normal
  04/09/2026 08 PM PDT            3.92             55         0              Normal
  04/09/2026 09 PM PDT            3.93             56         +              Normal
  04/09/2026 10 PM PDT            3.94             57         +              Normal
  04/09/2026 11 PM PDT            3.94             57         0              Normal
  04/10/2026 12 AM PDT            3.94             57         0              Normal
  04/10/2026 01 AM PDT            3.93             56         -              Normal
  04/10/2026 02 AM PDT            3.93             56         0              Normal
  04/10/2026 03 AM PDT            3.92             55         -              Normal
  04/10/2026 04 AM PDT            3.92             55         0              Normal
  04/10/2026 05 AM PDT            3.92             55         0              Normal
  04/10/2026 06 AM PDT            3.92             55         0              Normal
  04/10/2026 07 AM PDT            3.93             56         +              Normal
  04/10/2026 08 AM PDT            3.93             56         0              Normal
  04/10/2026 09 AM PDT            3.94             57         +              Normal
  04/10/2026 10 AM PDT            3.94             57         0              Normal
  04/10/2026 11 AM PDT            3.95             58         +              Normal
  04/10/2026 12 PM PDT            3.96             59         +              Normal
  04/10/2026 01 PM PDT            3.97             60         +              Normal
  04/10/2026 02 PM PDT            3.97             60         0              Normal
  04/10/2026 03 PM PDT            3.98             61         +              Normal
  04/10/2026 04 PM PDT            3.99             61         +              Normal
  04/10/2026 05 PM PDT            4.01             63         +              Normal
  04/10/2026 06 PM PDT            4.03             65         +              Normal
  04/10/2026 07 PM PDT            4.06             68         +              Normal
  04/10/2026 08 PM PDT            4.09             71         +              Normal
  04/10/2026 09 PM PDT            4.12             74         +              Normal
  04/10/2026 10 PM PDT            4.14             76         +              Normal
  04/10/2026 11 PM PDT            4.15             77         +              Normal
  04/11/2026 12 AM PDT            4.14             76         -              Normal
  04/11/2026 01 AM PDT            4.12             74         -              Normal
  04/11/2026 02 AM PDT            4.08             70         -              Normal
  04/11/2026 03 AM PDT            4.05             67         -              Normal
  04/11/2026 04 AM PDT            4.02             64         -              Normal
  04/11/2026 05 AM PDT            4.00             62         -              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.