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SAN LORENZO RIVER - BIG TREES (BTEC1)
| Latitude: 37.04º N | Longitude: 122.07º W | Elevation: 227 Feet | | Forecast Type: Official Location |
| Location: Santa Cruz County in California | Bulletin Group: Central Coast | River Group: Salinas/Pajaro |
| Issuance Time: | Jul 21 2026 at 7:31 AM PDT | Next Issuance: | Jul 22 2026 at 9:00 AM PDT
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| Action/Monitor: 14.0 Feet | Minor Flood: 16.5 Feet | Moderate Flood: 19.5 Feet | Major Flood: 21.76 Feet |
# Tabular Observed and Forecast Hydrograph Information
#
# Location: San Lorenzo River - Big Trees (BTEC1)
#
# File Generation Time: 07/21/2026 at 07:31 AM PDT
# Data Interval: 1 Hour
#
# Most Recent Date & Time of Maximum Observed: 07/20/2026 at 09:00 AM PDT
# Maximum Observed Stage: 3.31 Feet
# Maximum Observed Flow: 24 cfs
#
# Earliest Date & Time of Maximum Forecast: 07/21/2026 at 08:00 AM PDT
# Maximum Forecast Stage: 3.29 Feet
# Maximum Forecast Flow: 23 cfs
#
# OBSERVED
#
# Date & Time (Local) Stage (Feet) Flow (cfs) Trend Observed Status
# ---------------------------------------------------------------------------------
07/16/2026 07 AM PDT 3.29 23 Normal
07/16/2026 08 AM PDT 3.29 23 0 Normal
07/16/2026 09 AM PDT 3.30 23 + Normal
07/16/2026 10 AM PDT 3.30 23 0 Normal
07/16/2026 11 AM PDT 3.30 23 0 Normal
07/16/2026 12 PM PDT 3.30 23 0 Normal
07/16/2026 01 PM PDT 3.30 23 0 Normal
07/16/2026 02 PM PDT 3.29 23 - Normal
07/16/2026 03 PM PDT 3.29 23 0 Normal
07/16/2026 04 PM PDT 3.28 22 - Normal
07/16/2026 05 PM PDT 3.28 22 0 Normal
07/16/2026 06 PM PDT 3.28 22 0 Normal
07/16/2026 07 PM PDT 3.27 22 - Normal
07/16/2026 08 PM PDT 3.27 22 0 Normal
07/16/2026 09 PM PDT 3.27 22 0 Normal
07/16/2026 10 PM PDT 3.27 22 0 Normal
07/16/2026 11 PM PDT 3.27 22 0 Normal
07/17/2026 12 AM PDT 3.27 22 0 Normal
07/17/2026 01 AM PDT 3.27 22 0 Normal
07/17/2026 02 AM PDT 3.28 22 + Normal
07/17/2026 03 AM PDT 3.28 22 0 Normal
07/17/2026 04 AM PDT 3.28 22 0 Normal
07/17/2026 05 AM PDT 3.28 22 0 Normal
07/17/2026 06 AM PDT 3.29 23 + Normal
07/17/2026 07 AM PDT 3.29 23 0 Normal
07/17/2026 08 AM PDT 3.29 23 0 Normal
07/17/2026 09 AM PDT 3.29 23 0 Normal
07/17/2026 10 AM PDT 3.29 23 0 Normal
07/17/2026 11 AM PDT 3.29 23 0 Normal
07/17/2026 12 PM PDT 3.29 23 0 Normal
07/17/2026 01 PM PDT 3.29 23 0 Normal
07/17/2026 02 PM PDT 3.28 22 - Normal
07/17/2026 03 PM PDT 3.28 22 0 Normal
07/17/2026 04 PM PDT 3.28 22 0 Normal
07/17/2026 05 PM PDT 3.28 22 0 Normal
07/17/2026 06 PM PDT 3.27 22 - Normal
07/17/2026 07 PM PDT 3.27 22 0 Normal
07/17/2026 08 PM PDT 3.27 22 0 Normal
07/17/2026 09 PM PDT 3.27 22 0 Normal
07/17/2026 10 PM PDT 3.27 22 0 Normal
07/17/2026 11 PM PDT 3.27 22 0 Normal
07/18/2026 12 AM PDT 3.27 22 0 Normal
07/18/2026 01 AM PDT 3.28 22 + Normal
07/18/2026 02 AM PDT 3.28 22 0 Normal
07/18/2026 03 AM PDT 3.28 22 0 Normal
07/18/2026 04 AM PDT 3.28 22 0 Normal
07/18/2026 05 AM PDT 3.28 22 0 Normal
07/18/2026 06 AM PDT 3.29 23 + Normal
07/18/2026 07 AM PDT 3.29 23 0 Normal
07/18/2026 08 AM PDT 3.29 23 0 Normal
07/18/2026 09 AM PDT 3.29 23 0 Normal
07/18/2026 10 AM PDT 3.29 23 0 Normal
07/18/2026 11 AM PDT 3.29 23 0 Normal
07/18/2026 12 PM PDT 3.29 23 0 Normal
07/18/2026 01 PM PDT 3.29 23 0 Normal
07/18/2026 02 PM PDT 3.30 23 + Normal
07/18/2026 03 PM PDT 3.29 23 - Normal
07/18/2026 04 PM PDT 3.28 22 - Normal
07/18/2026 05 PM PDT 3.28 22 0 Normal
07/18/2026 06 PM PDT 3.28 22 0 Normal
07/18/2026 07 PM PDT 3.28 22 0 Normal
07/18/2026 08 PM PDT 3.28 22 0 Normal
07/18/2026 09 PM PDT 3.28 22 0 Normal
07/18/2026 10 PM PDT 3.28 22 0 Normal
07/18/2026 11 PM PDT 3.28 22 0 Normal
07/19/2026 12 AM PDT 3.27 22 - Normal
07/19/2026 01 AM PDT 3.28 22 + Normal
07/19/2026 02 AM PDT 3.28 22 0 Normal
07/19/2026 03 AM PDT 3.28 22 0 Normal
07/19/2026 04 AM PDT 3.29 23 + Normal
07/19/2026 05 AM PDT 3.29 23 0 Normal
07/19/2026 06 AM PDT 3.29 23 0 Normal
07/19/2026 07 AM PDT 3.29 23 0 Normal
07/19/2026 08 AM PDT 3.29 23 0 Normal
07/19/2026 09 AM PDT 3.29 23 0 Normal
07/19/2026 10 AM PDT 3.30 23 + Normal
07/19/2026 11 AM PDT 3.30 23 0 Normal
07/19/2026 12 PM PDT 3.29 23 - Normal
07/19/2026 01 PM PDT 3.29 23 0 Normal
07/19/2026 02 PM PDT 3.29 23 0 Normal
07/19/2026 03 PM PDT 3.29 23 0 Normal
07/19/2026 04 PM PDT 3.29 23 0 Normal
07/19/2026 05 PM PDT 3.28 22 - Normal
07/19/2026 06 PM PDT 3.28 22 0 Normal
07/19/2026 07 PM PDT 3.28 22 0 Normal
07/19/2026 08 PM PDT 3.29 23 + Normal
07/19/2026 09 PM PDT 3.28 22 - Normal
07/19/2026 10 PM PDT 3.28 22 0 Normal
07/19/2026 11 PM PDT 3.29 23 + Normal
07/20/2026 12 AM PDT 3.29 23 0 Normal
07/20/2026 01 AM PDT 3.29 23 0 Normal
07/20/2026 02 AM PDT 3.29 23 0 Normal
07/20/2026 03 AM PDT 3.29 23 0 Normal
07/20/2026 04 AM PDT 3.29 23 0 Normal
07/20/2026 05 AM PDT 3.29 23 0 Normal
07/20/2026 06 AM PDT 3.30 23 + Normal
07/20/2026 07 AM PDT 3.30 23 0 Normal
07/20/2026 08 AM PDT 3.30 23 0 Normal
07/20/2026 09 AM PDT 3.31 24 + Normal
07/20/2026 10 AM PDT 3.30 23 - Normal
07/20/2026 11 AM PDT 3.30 23 0 Normal
07/20/2026 12 PM PDT 3.30 23 0 Normal
07/20/2026 01 PM PDT 3.30 23 0 Normal
07/20/2026 02 PM PDT 3.30 23 0 Normal
07/20/2026 03 PM PDT 3.30 23 0 Normal
07/20/2026 04 PM PDT 3.30 23 0 Normal
07/20/2026 05 PM PDT 3.30 23 0 Normal
07/20/2026 06 PM PDT 3.29 23 - Normal
07/20/2026 07 PM PDT 3.29 23 0 Normal
07/20/2026 08 PM PDT 3.28 22 - Normal
07/20/2026 09 PM PDT 3.28 22 0 Normal
07/20/2026 10 PM PDT 3.28 22 0 Normal
07/20/2026 11 PM PDT 3.28 22 0 Normal
07/21/2026 12 AM PDT 3.28 22 0 Normal
07/21/2026 01 AM PDT 3.28 22 0 Normal
07/21/2026 02 AM PDT 3.28 22 0 Normal
07/21/2026 03 AM PDT 3.29 23 + Normal
07/21/2026 04 AM PDT 3.29 23 0 Normal
07/21/2026 05 AM PDT 3.29 23 0 Normal
07/21/2026 06 AM PDT 3.29 23 0 Normal
07/21/2026 07 AM PDT 3.29 23 0 Normal
#
# FORECAST
#
# Date & Time (Local) Stage (Feet) Flow (cfs) Trend Forecast Status
# ---------------------------------------------------------------------------------
07/21/2026 08 AM PDT 3.29 23 Normal
07/21/2026 09 AM PDT 3.29 23 0 Normal
07/21/2026 10 AM PDT 3.29 23 0 Normal
07/21/2026 11 AM PDT 3.29 23 0 Normal
07/21/2026 12 PM PDT 3.29 23 0 Normal
07/21/2026 01 PM PDT 3.29 23 0 Normal
07/21/2026 02 PM PDT 3.29 23 0 Normal
07/21/2026 03 PM PDT 3.29 23 0 Normal
07/21/2026 04 PM PDT 3.29 23 0 Normal
07/21/2026 05 PM PDT 3.29 23 0 Normal
07/21/2026 06 PM PDT 3.29 23 0 Normal
07/21/2026 07 PM PDT 3.29 23 0 Normal
07/21/2026 08 PM PDT 3.29 23 0 Normal
07/21/2026 09 PM PDT 3.29 23 0 Normal
07/21/2026 10 PM PDT 3.29 23 0 Normal
07/21/2026 11 PM PDT 3.29 23 0 Normal
07/22/2026 12 AM PDT 3.29 23 0 Normal
07/22/2026 01 AM PDT 3.29 23 0 Normal
07/22/2026 02 AM PDT 3.29 23 0 Normal
07/22/2026 03 AM PDT 3.29 23 0 Normal
07/22/2026 04 AM PDT 3.29 23 0 Normal
07/22/2026 05 AM PDT 3.29 23 0 Normal
07/22/2026 06 AM PDT 3.29 23 0 Normal
07/22/2026 07 AM PDT 3.29 23 0 Normal
07/22/2026 08 AM PDT 3.29 23 0 Normal
07/22/2026 09 AM PDT 3.29 23 0 Normal
07/22/2026 10 AM PDT 3.29 23 0 Normal
07/22/2026 11 AM PDT 3.29 23 0 Normal
07/22/2026 12 PM PDT 3.29 23 0 Normal
07/22/2026 01 PM PDT 3.29 23 0 Normal
07/22/2026 02 PM PDT 3.29 23 0 Normal
07/22/2026 03 PM PDT 3.29 23 0 Normal
07/22/2026 04 PM PDT 3.29 23 0 Normal
07/22/2026 05 PM PDT 3.29 23 0 Normal
07/22/2026 06 PM PDT 3.29 23 0 Normal
07/22/2026 07 PM PDT 3.29 23 0 Normal
07/22/2026 08 PM PDT 3.29 23 0 Normal
07/22/2026 09 PM PDT 3.29 23 0 Normal
07/22/2026 10 PM PDT 3.29 23 0 Normal
07/22/2026 11 PM PDT 3.29 23 0 Normal
07/23/2026 12 AM PDT 3.29 23 0 Normal
07/23/2026 01 AM PDT 3.29 23 0 Normal
07/23/2026 02 AM PDT 3.29 23 0 Normal
07/23/2026 03 AM PDT 3.29 23 0 Normal
07/23/2026 04 AM PDT 3.29 23 0 Normal
07/23/2026 05 AM PDT 3.29 23 0 Normal
07/23/2026 06 AM PDT 3.29 23 0 Normal
07/23/2026 07 AM PDT 3.29 23 0 Normal
07/23/2026 08 AM PDT 3.29 23 0 Normal
07/23/2026 09 AM PDT 3.29 23 0 Normal
07/23/2026 10 AM PDT 3.29 23 0 Normal
07/23/2026 11 AM PDT 3.29 23 0 Normal
07/23/2026 12 PM PDT 3.29 23 0 Normal
07/23/2026 01 PM PDT 3.29 23 0 Normal
07/23/2026 02 PM PDT 3.28 22 - Normal
07/23/2026 03 PM PDT 3.28 22 0 Normal
07/23/2026 04 PM PDT 3.28 22 0 Normal
07/23/2026 05 PM PDT 3.28 22 0 Normal
07/23/2026 06 PM PDT 3.28 22 0 Normal
07/23/2026 07 PM PDT 3.28 22 0 Normal
07/23/2026 08 PM PDT 3.28 22 0 Normal
07/23/2026 09 PM PDT 3.28 22 0 Normal
07/23/2026 10 PM PDT 3.28 22 0 Normal
07/23/2026 11 PM PDT 3.28 22 0 Normal
07/24/2026 12 AM PDT 3.28 22 0 Normal
07/24/2026 01 AM PDT 3.28 22 0 Normal
07/24/2026 02 AM PDT 3.28 22 0 Normal
07/24/2026 03 AM PDT 3.28 22 0 Normal
07/24/2026 04 AM PDT 3.28 22 0 Normal
07/24/2026 05 AM PDT 3.28 22 0 Normal
07/24/2026 06 AM PDT 3.28 22 0 Normal
07/24/2026 07 AM PDT 3.28 22 0 Normal
07/24/2026 08 AM PDT 3.28 22 0 Normal
07/24/2026 09 AM PDT 3.28 22 0 Normal
07/24/2026 10 AM PDT 3.28 22 0 Normal
07/24/2026 11 AM PDT 3.28 22 0 Normal
07/24/2026 12 PM PDT 3.28 22 0 Normal
07/24/2026 01 PM PDT 3.28 22 0 Normal
07/24/2026 02 PM PDT 3.28 22 0 Normal
07/24/2026 03 PM PDT 3.28 22 0 Normal
07/24/2026 04 PM PDT 3.28 22 0 Normal
07/24/2026 05 PM PDT 3.28 22 0 Normal
07/24/2026 06 PM PDT 3.28 22 0 Normal
07/24/2026 07 PM PDT 3.28 22 0 Normal
07/24/2026 08 PM PDT 3.28 22 0 Normal
07/24/2026 09 PM PDT 3.28 22 0 Normal
07/24/2026 10 PM PDT 3.28 22 0 Normal
07/24/2026 11 PM PDT 3.28 22 0 Normal
07/25/2026 12 AM PDT 3.28 22 0 Normal
07/25/2026 01 AM PDT 3.28 22 0 Normal
07/25/2026 02 AM PDT 3.28 22 0 Normal
07/25/2026 03 AM PDT 3.28 22 0 Normal
07/25/2026 04 AM PDT 3.28 22 0 Normal
07/25/2026 05 AM PDT 3.28 22 0 Normal
07/25/2026 06 AM PDT 3.28 22 0 Normal
07/25/2026 07 AM PDT 3.28 22 0 Normal
07/25/2026 08 AM PDT 3.28 22 0 Normal
07/25/2026 09 AM PDT 3.28 22 0 Normal
07/25/2026 10 AM PDT 3.28 22 0 Normal
07/25/2026 11 AM PDT 3.28 22 0 Normal
07/25/2026 12 PM PDT 3.28 22 0 Normal
07/25/2026 01 PM PDT 3.28 22 0 Normal
07/25/2026 02 PM PDT 3.28 22 0 Normal
07/25/2026 03 PM PDT 3.28 22 0 Normal
07/25/2026 04 PM PDT 3.28 22 0 Normal
07/25/2026 05 PM PDT 3.28 22 0 Normal
07/25/2026 06 PM PDT 3.28 22 0 Normal
07/25/2026 07 PM PDT 3.28 22 0 Normal
07/25/2026 08 PM PDT 3.28 22 0 Normal
07/25/2026 09 PM PDT 3.28 22 0 Normal
07/25/2026 10 PM PDT 3.28 22 0 Normal
07/25/2026 11 PM PDT 3.28 22 0 Normal
07/26/2026 12 AM PDT 3.28 22 0 Normal
07/26/2026 01 AM PDT 3.28 22 0 Normal
07/26/2026 02 AM PDT 3.28 22 0 Normal
07/26/2026 03 AM PDT 3.28 22 0 Normal
07/26/2026 04 AM PDT 3.28 22 0 Normal
07/26/2026 05 AM PDT 3.28 22 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.
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