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: Nov 04 2026 at 12:37 PM PSTNext Issuance: Nov 05 2026 at 9:00 AM PST
Action: 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:  11/04/2026 at 12:37 PM PST
# Data Interval:  1 Hour
#
# Most Recent Date & Time of Maximum Observed:  11/04/2026 at 02:00 AM PST
# Maximum Observed Stage:                       3.53 Feet
# Maximum Observed Flow:                        32 cfs
#
# Earliest Date & Time of Maximum Forecast:     11/04/2026 at 01:00 PM PST
# Maximum Forecast Stage:                       3.30 Feet
# Maximum Forecast Flow:                        21 cfs
#
# OBSERVED
#
# Date & Time  (Local)    Stage (Feet)     Flow (cfs)     Trend     Observed Status
# ---------------------------------------------------------------------------------
  10/30/2026 01 PM PDT            3.19             17                        Normal
  10/30/2026 02 PM PDT            3.19             17         0              Normal
  10/30/2026 03 PM PDT            3.19             17         0              Normal
  10/30/2026 04 PM PDT            3.19             17         0              Normal
  10/30/2026 05 PM PDT            3.19             17         0              Normal
  10/30/2026 06 PM PDT            3.19             17         0              Normal
  10/30/2026 07 PM PDT            3.18             16         -              Normal
  10/30/2026 08 PM PDT            3.18             16         0              Normal
  10/30/2026 09 PM PDT            3.18             16         0              Normal
  10/30/2026 10 PM PDT            3.18             16         0              Normal
  10/30/2026 11 PM PDT            3.18             16         0              Normal
  10/31/2026 12 AM PDT            3.18             16         0              Normal
  10/31/2026 01 AM PDT            3.18             16         0              Normal
  10/31/2026 02 AM PDT            3.18             16         0              Normal
  10/31/2026 03 AM PDT            3.18             16         0              Normal
  10/31/2026 04 AM PDT            3.18             16         0              Normal
  10/31/2026 05 AM PDT            3.18             16         0              Normal
  10/31/2026 06 AM PDT            3.18             16         0              Normal
  10/31/2026 07 AM PDT            3.18             16         0              Normal
  10/31/2026 08 AM PDT            3.19             17         +              Normal
  10/31/2026 09 AM PDT            3.19             17         0              Normal
  10/31/2026 10 AM PDT            3.19             17         0              Normal
  10/31/2026 11 AM PDT            3.19             17         0              Normal
  10/31/2026 12 PM PDT            3.19             17         0              Normal
  10/31/2026 01 PM PDT            3.19             17         0              Normal
  10/31/2026 02 PM PDT            3.20             17         +              Normal
  10/31/2026 03 PM PDT            3.20             17         0              Normal
  10/31/2026 04 PM PDT            3.20             17         0              Normal
  10/31/2026 05 PM PDT            3.20             17         0              Normal
  10/31/2026 06 PM PDT            3.20             17         0              Normal
  10/31/2026 07 PM PDT            3.20             17         0              Normal
  10/31/2026 08 PM PDT            3.20             17         0              Normal
  10/31/2026 09 PM PDT            3.19             17         -              Normal
  10/31/2026 10 PM PDT            3.20             17         +              Normal
  10/31/2026 11 PM PDT            3.19             17         -              Normal
  11/01/2026 12 AM PDT            3.19             17         0              Normal
  11/01/2026 01 AM PDT            3.19             17         0              Normal
  11/01/2026 01 AM PST            3.19             17         0              Normal
  11/01/2026 02 AM PST            3.19             17         0              Normal
  11/01/2026 03 AM PST            3.21             18         +              Normal
  11/01/2026 04 AM PST            3.22             18         +              Normal
  11/01/2026 05 AM PST            3.24             19         +              Normal
  11/01/2026 06 AM PST            3.23             18         -              Normal
  11/01/2026 07 AM PST            3.22             18         -              Normal
  11/01/2026 08 AM PST            3.22             18         0              Normal
  11/01/2026 09 AM PST            3.22             18         0              Normal
  11/01/2026 10 AM PST            3.22             18         0              Normal
  11/01/2026 11 AM PST            3.22             18         0              Normal
  11/01/2026 12 PM PST            3.22             18         0              Normal
  11/01/2026 01 PM PST            3.21             18         -              Normal
  11/01/2026 02 PM PST            3.21             18         0              Normal
  11/01/2026 03 PM PST            3.21             18         0              Normal
  11/01/2026 04 PM PST            3.21             18         0              Normal
  11/01/2026 05 PM PST            3.21             18         0              Normal
  11/01/2026 06 PM PST            3.21             18         0              Normal
  11/01/2026 07 PM PST            3.21             18         0              Normal
  11/01/2026 08 PM PST            3.21             18         0              Normal
  11/01/2026 09 PM PST            3.21             18         0              Normal
  11/01/2026 10 PM PST            3.21             18         0              Normal
  11/01/2026 11 PM PST            3.21             18         0              Normal
  11/02/2026 12 AM PST            3.21             18         0              Normal
  11/02/2026 01 AM PST            3.21             18         0              Normal
  11/02/2026 02 AM PST            3.21             18         0              Normal
  11/02/2026 03 AM PST            3.21             18         0              Normal
  11/02/2026 04 AM PST            3.21             18         0              Normal
  11/02/2026 05 AM PST            3.21             18         0              Normal
  11/02/2026 06 AM PST            3.21             18         0              Normal
  11/02/2026 07 AM PST            3.21             18         0              Normal
  11/02/2026 08 AM PST            3.21             18         0              Normal
  11/02/2026 09 AM PST            3.21             18         0              Normal
  11/02/2026 10 AM PST            3.22             18         +              Normal
  11/02/2026 11 AM PST            3.22             18         0              Normal
  11/02/2026 12 PM PST            3.21             18         -              Normal
  11/02/2026 01 PM PST            3.22             18         +              Normal
  11/02/2026 02 PM PST            3.22             18         0              Normal
  11/02/2026 03 PM PST            3.22             18         0              Normal
  11/02/2026 04 PM PST            3.22             18         0              Normal
  11/02/2026 05 PM PST            3.22             18         0              Normal
  11/02/2026 06 PM PST            3.22             18         0              Normal
  11/02/2026 07 PM PST            3.21             18         -              Normal
  11/02/2026 08 PM PST            3.22             18         +              Normal
  11/02/2026 09 PM PST            3.21             18         -              Normal
  11/02/2026 10 PM PST            3.21             18         0              Normal
  11/02/2026 11 PM PST            3.21             18         0              Normal
  11/03/2026 12 AM PST            3.21             18         0              Normal
  11/03/2026 01 AM PST            3.22             18         +              Normal
  11/03/2026 02 AM PST            3.22             18         0              Normal
  11/03/2026 03 AM PST            3.22             18         0              Normal
  11/03/2026 04 AM PST            3.22             18         0              Normal
  11/03/2026 05 AM PST            3.22             18         0              Normal
  11/03/2026 06 AM PST            3.22             18         0              Normal
  11/03/2026 07 AM PST            3.22             18         0              Normal
  11/03/2026 08 AM PST            3.22             18         0              Normal
  11/03/2026 09 AM PST            3.22             18         0              Normal
  11/03/2026 10 AM PST            3.22             18         0              Normal
  11/03/2026 11 AM PST            3.23             18         +              Normal
  11/03/2026 12 PM PST            3.24             19         +              Normal
  11/03/2026 01 PM PST            3.32             22         +              Normal
  11/03/2026 02 PM PST            3.36             24         +              Normal
  11/03/2026 03 PM PST            3.35             23         -              Normal
  11/03/2026 04 PM PST            3.34             23         -              Normal
  11/03/2026 05 PM PST            3.37             24         +              Normal
  11/03/2026 06 PM PST            3.38             25         +              Normal
  11/03/2026 07 PM PST            3.51             31         +              Normal
  11/03/2026 08 PM PST            3.52             32         +              Normal
  11/03/2026 09 PM PST            3.53             32         +              Normal
  11/03/2026 10 PM PST            3.53             32         0              Normal
  11/03/2026 11 PM PST            3.52             32         -              Normal
  11/04/2026 12 AM PST            3.52             32         0              Normal
  11/04/2026 01 AM PST            3.53             32         +              Normal
  11/04/2026 02 AM PST            3.53             32         0              Normal
  11/04/2026 03 AM PST            3.51             31         -              Normal
  11/04/2026 04 AM PST            3.48             29         -              Normal
  11/04/2026 05 AM PST            3.46             28         -              Normal
  11/04/2026 06 AM PST            3.44             28         -              Normal
  11/04/2026 07 AM PST            3.42             27         -              Normal
  11/04/2026 08 AM PST            3.40             26         -              Normal
  11/04/2026 09 AM PST            3.39             25         -              Normal
  11/04/2026 10 AM PST            3.38             25         -              Normal
  11/04/2026 11 AM PST            3.38             25         0              Normal
  11/04/2026 12 PM PST            3.34             23         -              Normal
#
# FORECAST
#
# Date & Time  (Local)    Stage (Feet)     Flow (cfs)     Trend     Forecast Status
# ---------------------------------------------------------------------------------
  11/04/2026 01 PM PST            3.30             21                        Normal
  11/04/2026 02 PM PST            3.27             20         -              Normal
  11/04/2026 03 PM PST            3.25             19         -              Normal
  11/04/2026 04 PM PST            3.25             19         0              Normal
  11/04/2026 05 PM PST            3.24             19         -              Normal
  11/04/2026 06 PM PST            3.24             19         0              Normal
  11/04/2026 07 PM PST            3.24             19         0              Normal
  11/04/2026 08 PM PST            3.24             19         0              Normal
  11/04/2026 09 PM PST            3.23             18         -              Normal
  11/04/2026 10 PM PST            3.23             18         0              Normal
  11/04/2026 11 PM PST            3.23             18         0              Normal
  11/05/2026 12 AM PST            3.23             18         0              Normal
  11/05/2026 01 AM PST            3.23             18         0              Normal
  11/05/2026 02 AM PST            3.23             18         0              Normal
  11/05/2026 03 AM PST            3.23             18         0              Normal
  11/05/2026 04 AM PST            3.23             18         0              Normal
  11/05/2026 05 AM PST            3.23             18         0              Normal
  11/05/2026 06 AM PST            3.23             18         0              Normal
  11/05/2026 07 AM PST            3.23             18         0              Normal
  11/05/2026 08 AM PST            3.23             18         0              Normal
  11/05/2026 09 AM PST            3.23             18         0              Normal
  11/05/2026 10 AM PST            3.23             18         0              Normal
  11/05/2026 11 AM PST            3.23             18         0              Normal
  11/05/2026 12 PM PST            3.23             18         0              Normal
  11/05/2026 01 PM PST            3.23             18         0              Normal
  11/05/2026 02 PM PST            3.23             18         0              Normal
  11/05/2026 03 PM PST            3.23             18         0              Normal
  11/05/2026 04 PM PST            3.23             18         0              Normal
  11/05/2026 05 PM PST            3.23             18         0              Normal
  11/05/2026 06 PM PST            3.23             18         0              Normal
  11/05/2026 07 PM PST            3.23             18         0              Normal
  11/05/2026 08 PM PST            3.23             18         0              Normal
  11/05/2026 09 PM PST            3.23             18         0              Normal
  11/05/2026 10 PM PST            3.23             18         0              Normal
  11/05/2026 11 PM PST            3.23             18         0              Normal
  11/06/2026 12 AM PST            3.23             18         0              Normal
  11/06/2026 01 AM PST            3.23             18         0              Normal
  11/06/2026 02 AM PST            3.23             18         0              Normal
  11/06/2026 03 AM PST            3.23             18         0              Normal
  11/06/2026 04 AM PST            3.23             18         0              Normal
  11/06/2026 05 AM PST            3.23             18         0              Normal
  11/06/2026 06 AM PST            3.23             18         0              Normal
  11/06/2026 07 AM PST            3.23             18         0              Normal
  11/06/2026 08 AM PST            3.23             18         0              Normal
  11/06/2026 09 AM PST            3.23             18         0              Normal
  11/06/2026 10 AM PST            3.23             18         0              Normal
  11/06/2026 11 AM PST            3.23             18         0              Normal
  11/06/2026 12 PM PST            3.23             18         0              Normal
  11/06/2026 01 PM PST            3.23             18         0              Normal
  11/06/2026 02 PM PST            3.23             18         0              Normal
  11/06/2026 03 PM PST            3.23             18         0              Normal
  11/06/2026 04 PM PST            3.23             18         0              Normal
  11/06/2026 05 PM PST            3.23             18         0              Normal
  11/06/2026 06 PM PST            3.23             18         0              Normal
  11/06/2026 07 PM PST            3.23             18         0              Normal
  11/06/2026 08 PM PST            3.23             18         0              Normal
  11/06/2026 09 PM PST            3.23             18         0              Normal
  11/06/2026 10 PM PST            3.23             18         0              Normal
  11/06/2026 11 PM PST            3.23             18         0              Normal
  11/07/2026 12 AM PST            3.23             18         0              Normal
  11/07/2026 01 AM PST            3.23             18         0              Normal
  11/07/2026 02 AM PST            3.23             18         0              Normal
  11/07/2026 03 AM PST            3.23             18         0              Normal
  11/07/2026 04 AM PST            3.23             18         0              Normal
  11/07/2026 05 AM PST            3.23             18         0              Normal
  11/07/2026 06 AM PST            3.23             18         0              Normal
  11/07/2026 07 AM PST            3.23             18         0              Normal
  11/07/2026 08 AM PST            3.23             18         0              Normal
  11/07/2026 09 AM PST            3.23             18         0              Normal
  11/07/2026 10 AM PST            3.23             18         0              Normal
  11/07/2026 11 AM PST            3.23             18         0              Normal
  11/07/2026 12 PM PST            3.23             18         0              Normal
  11/07/2026 01 PM PST            3.23             18         0              Normal
  11/07/2026 02 PM PST            3.23             18         0              Normal
  11/07/2026 03 PM PST            3.23             18         0              Normal
  11/07/2026 04 PM PST            3.23             18         0              Normal
  11/07/2026 05 PM PST            3.23             18         0              Normal
  11/07/2026 06 PM PST            3.23             18         0              Normal
  11/07/2026 07 PM PST            3.23             18         0              Normal
  11/07/2026 08 PM PST            3.23             18         0              Normal
  11/07/2026 09 PM PST            3.23             18         0              Normal
  11/07/2026 10 PM PST            3.23             18         0              Normal
  11/07/2026 11 PM PST            3.23             18         0              Normal
  11/08/2026 12 AM PST            3.23             18         0              Normal
  11/08/2026 01 AM PST            3.23             18         0              Normal
  11/08/2026 02 AM PST            3.23             18         0              Normal
  11/08/2026 03 AM PST            3.23             18         0              Normal
  11/08/2026 04 AM PST            3.23             18         0              Normal
  11/08/2026 05 AM PST            3.23             18         0              Normal
  11/08/2026 06 AM PST            3.23             18         0              Normal
  11/08/2026 07 AM PST            3.23             18         0              Normal
  11/08/2026 08 AM PST            3.23             18         0              Normal
  11/08/2026 09 AM PST            3.23             18         0              Normal
  11/08/2026 10 AM PST            3.23             18         0              Normal
  11/08/2026 11 AM PST            3.23             18         0              Normal
  11/08/2026 12 PM PST            3.23             18         0              Normal
  11/08/2026 01 PM PST            3.23             18         0              Normal
  11/08/2026 02 PM PST            3.23             18         0              Normal
  11/08/2026 03 PM PST            3.23             18         0              Normal
  11/08/2026 04 PM PST            3.23             18         0              Normal
  11/08/2026 05 PM PST            3.23             18         0              Normal
  11/08/2026 06 PM PST            3.23             18         0              Normal
  11/08/2026 07 PM PST            3.23             18         0              Normal
  11/08/2026 08 PM PST            3.23             18         0              Normal
  11/08/2026 09 PM PST            3.23             18         0              Normal
  11/08/2026 10 PM PST            3.23             18         0              Normal
  11/08/2026 11 PM PST            3.23             18         0              Normal
  11/09/2026 12 AM PST            3.23             18         0              Normal
  11/09/2026 01 AM PST            3.23             18         0              Normal
  11/09/2026 02 AM PST            3.23             18         0              Normal
  11/09/2026 03 AM PST            3.23             18         0              Normal
  11/09/2026 04 AM PST            3.23             18         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.