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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: | Mar 23 2026 at 1:12 PM PDT | Next Issuance: | Mar 24 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: 03/23/2026 at 01:12 PM PDT
# Data Interval: 1 Hour
#
# Most Recent Date & Time of Maximum Observed: 03/18/2026 at 02:00 PM PDT
# Maximum Observed Stage: 4.13 Feet
# Maximum Observed Flow: 76 cfs
#
# Earliest Date & Time of Maximum Forecast: 03/23/2026 at 02:00 PM PDT
# Maximum Forecast Stage: 4.02 Feet
# Maximum Forecast Flow: 66 cfs
#
# OBSERVED
#
# Date & Time (Local) Stage (Feet) Flow (cfs) Trend Observed Status
# ---------------------------------------------------------------------------------
03/18/2026 01 PM PDT 4.12 75 Normal
03/18/2026 02 PM PDT 4.13 76 + Normal
03/18/2026 03 PM PDT 4.12 75 - Normal
03/18/2026 04 PM PDT 4.12 75 0 Normal
03/18/2026 05 PM PDT 4.11 74 - Normal
03/18/2026 06 PM PDT 4.11 74 0 Normal
03/18/2026 07 PM PDT 4.11 74 0 Normal
03/18/2026 08 PM PDT 4.11 74 0 Normal
03/18/2026 09 PM PDT 4.11 74 0 Normal
03/18/2026 10 PM PDT 4.11 74 0 Normal
03/18/2026 11 PM PDT 4.11 74 0 Normal
03/19/2026 12 AM PDT 4.11 74 0 Normal
03/19/2026 01 AM PDT 4.11 74 0 Normal
03/19/2026 02 AM PDT 4.11 74 0 Normal
03/19/2026 03 AM PDT 4.10 73 - Normal
03/19/2026 04 AM PDT 4.10 73 0 Normal
03/19/2026 05 AM PDT 4.10 73 0 Normal
03/19/2026 06 AM PDT 4.10 73 0 Normal
03/19/2026 07 AM PDT 4.10 73 0 Normal
03/19/2026 08 AM PDT 4.10 73 0 Normal
03/19/2026 09 AM PDT 4.09 72 - Normal
03/19/2026 10 AM PDT 4.09 72 0 Normal
03/19/2026 11 AM PDT 4.09 72 0 Normal
03/19/2026 12 PM PDT 4.08 71 - Normal
03/19/2026 01 PM PDT 4.09 72 + Normal
03/19/2026 02 PM PDT 4.08 71 - Normal
03/19/2026 03 PM PDT 4.08 71 0 Normal
03/19/2026 04 PM PDT 4.06 70 - Normal
03/19/2026 05 PM PDT 4.06 70 0 Normal
03/19/2026 06 PM PDT 4.08 71 + Normal
03/19/2026 07 PM PDT 4.08 71 0 Normal
03/19/2026 08 PM PDT 4.07 71 - Normal
03/19/2026 09 PM PDT 4.07 71 0 Normal
03/19/2026 10 PM PDT 4.07 71 0 Normal
03/19/2026 11 PM PDT 4.08 71 + Normal
03/20/2026 12 AM PDT 4.07 71 - Normal
03/20/2026 01 AM PDT 4.07 71 0 Normal
03/20/2026 02 AM PDT 4.07 71 0 Normal
03/20/2026 03 AM PDT 4.07 71 0 Normal
03/20/2026 04 AM PDT 4.06 70 - Normal
03/20/2026 05 AM PDT 4.06 70 0 Normal
03/20/2026 06 AM PDT 4.06 70 0 Normal
03/20/2026 07 AM PDT 4.06 70 0 Normal
03/20/2026 08 AM PDT 4.06 70 0 Normal
03/20/2026 09 AM PDT 4.06 70 0 Normal
03/20/2026 10 AM PDT 4.05 69 - Normal
03/20/2026 11 AM PDT 4.06 70 + Normal
03/20/2026 12 PM PDT 4.06 70 0 Normal
03/20/2026 01 PM PDT 4.06 70 0 Normal
03/20/2026 02 PM PDT 4.06 70 0 Normal
03/20/2026 03 PM PDT 4.09 72 + Normal
03/20/2026 04 PM PDT 4.08 71 - Normal
03/20/2026 05 PM PDT 4.08 71 0 Normal
03/20/2026 06 PM PDT 4.08 71 0 Normal
03/20/2026 07 PM PDT 4.08 71 0 Normal
03/20/2026 08 PM PDT 4.08 71 0 Normal
03/20/2026 09 PM PDT 4.08 71 0 Normal
03/20/2026 10 PM PDT 4.08 71 0 Normal
03/20/2026 11 PM PDT 4.08 71 0 Normal
03/21/2026 12 AM PDT 4.08 71 0 Normal
03/21/2026 01 AM PDT 4.07 71 - Normal
03/21/2026 02 AM PDT 4.07 71 0 Normal
03/21/2026 03 AM PDT 4.07 71 0 Normal
03/21/2026 04 AM PDT 4.07 71 0 Normal
03/21/2026 05 AM PDT 4.07 71 0 Normal
03/21/2026 06 AM PDT 4.06 70 - Normal
03/21/2026 07 AM PDT 4.07 71 + Normal
03/21/2026 08 AM PDT 4.07 71 0 Normal
03/21/2026 09 AM PDT 4.06 70 - Normal
03/21/2026 10 AM PDT 4.06 70 0 Normal
03/21/2026 11 AM PDT 4.06 70 0 Normal
03/21/2026 12 PM PDT 4.06 70 0 Normal
03/21/2026 01 PM PDT 4.06 70 0 Normal
03/21/2026 02 PM PDT 4.06 70 0 Normal
03/21/2026 03 PM PDT 4.06 70 0 Normal
03/21/2026 04 PM PDT 4.07 71 + Normal
03/21/2026 05 PM PDT 4.07 71 0 Normal
03/21/2026 06 PM PDT 4.06 70 - Normal
03/21/2026 07 PM PDT 4.06 70 0 Normal
03/21/2026 08 PM PDT 4.06 70 0 Normal
03/21/2026 09 PM PDT 4.07 71 + Normal
03/21/2026 10 PM PDT 4.07 71 0 Normal
03/21/2026 11 PM PDT 4.07 71 0 Normal
03/22/2026 12 AM PDT 4.06 70 - Normal
03/22/2026 01 AM PDT 4.06 70 0 Normal
03/22/2026 02 AM PDT 4.05 69 - Normal
03/22/2026 03 AM PDT 4.05 69 0 Normal
03/22/2026 04 AM PDT 4.05 69 0 Normal
03/22/2026 05 AM PDT 4.04 68 - Normal
03/22/2026 06 AM PDT 4.05 69 + Normal
03/22/2026 07 AM PDT 4.04 68 - Normal
03/22/2026 08 AM PDT 4.03 67 - Normal
03/22/2026 09 AM PDT 4.04 68 + Normal
03/22/2026 10 AM PDT 4.04 68 0 Normal
03/22/2026 11 AM PDT 4.04 68 0 Normal
03/22/2026 12 PM PDT 4.04 68 0 Normal
03/22/2026 01 PM PDT 4.04 68 0 Normal
03/22/2026 02 PM PDT 4.04 68 0 Normal
03/22/2026 03 PM PDT 4.04 68 0 Normal
03/22/2026 04 PM PDT 4.04 68 0 Normal
03/22/2026 05 PM PDT 4.03 67 - Normal
03/22/2026 06 PM PDT 4.03 67 0 Normal
03/22/2026 07 PM PDT 4.03 67 0 Normal
03/22/2026 08 PM PDT 4.03 67 0 Normal
03/22/2026 09 PM PDT 4.03 67 0 Normal
03/22/2026 10 PM PDT 4.04 68 + Normal
03/22/2026 11 PM PDT 4.03 67 - Normal
03/23/2026 12 AM PDT 4.03 67 0 Normal
03/23/2026 01 AM PDT 4.03 67 0 Normal
03/23/2026 02 AM PDT 4.03 67 0 Normal
03/23/2026 03 AM PDT 4.02 66 - Normal
03/23/2026 04 AM PDT 4.03 67 + Normal
03/23/2026 05 AM PDT 4.02 66 - Normal
03/23/2026 06 AM PDT 4.02 66 0 Normal
03/23/2026 07 AM PDT 4.02 66 0 Normal
03/23/2026 08 AM PDT 4.02 66 0 Normal
03/23/2026 09 AM PDT 4.02 66 0 Normal
03/23/2026 10 AM PDT 4.01 66 - Normal
03/23/2026 11 AM PDT 4.02 66 + Normal
03/23/2026 12 PM PDT 4.02 66 0 Normal
03/23/2026 01 PM PDT 4.02 66 0 Normal
#
# FORECAST
#
# Date & Time (Local) Stage (Feet) Flow (cfs) Trend Forecast Status
# ---------------------------------------------------------------------------------
03/23/2026 02 PM PDT 4.02 66 Normal
03/23/2026 03 PM PDT 4.02 66 0 Normal
03/23/2026 04 PM PDT 4.01 66 - Normal
03/23/2026 05 PM PDT 4.01 66 0 Normal
03/23/2026 06 PM PDT 4.01 66 0 Normal
03/23/2026 07 PM PDT 4.01 66 0 Normal
03/23/2026 08 PM PDT 4.01 66 0 Normal
03/23/2026 09 PM PDT 4.01 66 0 Normal
03/23/2026 10 PM PDT 4.01 66 0 Normal
03/23/2026 11 PM PDT 4.01 66 0 Normal
03/24/2026 12 AM PDT 4.01 66 0 Normal
03/24/2026 01 AM PDT 4.00 65 - Normal
03/24/2026 02 AM PDT 4.00 65 0 Normal
03/24/2026 03 AM PDT 4.00 65 0 Normal
03/24/2026 04 AM PDT 4.00 65 0 Normal
03/24/2026 05 AM PDT 4.00 65 0 Normal
03/24/2026 06 AM PDT 4.00 65 0 Normal
03/24/2026 07 AM PDT 4.00 65 0 Normal
03/24/2026 08 AM PDT 4.00 65 0 Normal
03/24/2026 09 AM PDT 4.00 65 0 Normal
03/24/2026 10 AM PDT 4.00 65 0 Normal
03/24/2026 11 AM PDT 3.99 64 - Normal
03/24/2026 12 PM PDT 3.99 64 0 Normal
03/24/2026 01 PM PDT 3.99 64 0 Normal
03/24/2026 02 PM PDT 3.99 64 0 Normal
03/24/2026 03 PM PDT 3.99 64 0 Normal
03/24/2026 04 PM PDT 3.99 64 0 Normal
03/24/2026 05 PM PDT 3.99 64 0 Normal
03/24/2026 06 PM PDT 3.99 64 0 Normal
03/24/2026 07 PM PDT 3.99 64 0 Normal
03/24/2026 08 PM PDT 3.98 63 - Normal
03/24/2026 09 PM PDT 3.98 63 0 Normal
03/24/2026 10 PM PDT 3.98 63 0 Normal
03/24/2026 11 PM PDT 3.98 63 0 Normal
03/25/2026 12 AM PDT 3.98 63 0 Normal
03/25/2026 01 AM PDT 3.98 63 0 Normal
03/25/2026 02 AM PDT 3.98 63 0 Normal
03/25/2026 03 AM PDT 3.98 63 0 Normal
03/25/2026 04 AM PDT 3.98 63 0 Normal
03/25/2026 05 AM PDT 3.98 63 0 Normal
03/25/2026 06 AM PDT 3.97 62 - Normal
03/25/2026 07 AM PDT 3.97 62 0 Normal
03/25/2026 08 AM PDT 3.97 62 0 Normal
03/25/2026 09 AM PDT 3.97 62 0 Normal
03/25/2026 10 AM PDT 3.97 62 0 Normal
03/25/2026 11 AM PDT 3.97 62 0 Normal
03/25/2026 12 PM PDT 3.97 62 0 Normal
03/25/2026 01 PM PDT 3.97 62 0 Normal
03/25/2026 02 PM PDT 3.97 62 0 Normal
03/25/2026 03 PM PDT 3.96 62 - Normal
03/25/2026 04 PM PDT 3.96 62 0 Normal
03/25/2026 05 PM PDT 3.96 62 0 Normal
03/25/2026 06 PM PDT 3.96 62 0 Normal
03/25/2026 07 PM PDT 3.96 62 0 Normal
03/25/2026 08 PM PDT 3.96 62 0 Normal
03/25/2026 09 PM PDT 3.96 62 0 Normal
03/25/2026 10 PM PDT 3.96 62 0 Normal
03/25/2026 11 PM PDT 3.96 62 0 Normal
03/26/2026 12 AM PDT 3.96 62 0 Normal
03/26/2026 01 AM PDT 3.96 62 0 Normal
03/26/2026 02 AM PDT 3.95 61 - Normal
03/26/2026 03 AM PDT 3.95 61 0 Normal
03/26/2026 04 AM PDT 3.95 61 0 Normal
03/26/2026 05 AM PDT 3.95 61 0 Normal
03/26/2026 06 AM PDT 3.95 61 0 Normal
03/26/2026 07 AM PDT 3.95 61 0 Normal
03/26/2026 08 AM PDT 3.95 61 0 Normal
03/26/2026 09 AM PDT 3.95 61 0 Normal
03/26/2026 10 AM PDT 3.95 61 0 Normal
03/26/2026 11 AM PDT 3.94 60 - Normal
03/26/2026 12 PM PDT 3.94 60 0 Normal
03/26/2026 01 PM PDT 3.94 60 0 Normal
03/26/2026 02 PM PDT 3.94 60 0 Normal
03/26/2026 03 PM PDT 3.94 60 0 Normal
03/26/2026 04 PM PDT 3.94 60 0 Normal
03/26/2026 05 PM PDT 3.94 60 0 Normal
03/26/2026 06 PM PDT 3.94 60 0 Normal
03/26/2026 07 PM PDT 3.94 60 0 Normal
03/26/2026 08 PM PDT 3.94 60 0 Normal
03/26/2026 09 PM PDT 3.94 60 0 Normal
03/26/2026 10 PM PDT 3.93 59 - Normal
03/26/2026 11 PM PDT 3.93 59 0 Normal
03/27/2026 12 AM PDT 3.93 59 0 Normal
03/27/2026 01 AM PDT 3.93 59 0 Normal
03/27/2026 02 AM PDT 3.93 59 0 Normal
03/27/2026 03 AM PDT 3.93 59 0 Normal
03/27/2026 04 AM PDT 3.93 59 0 Normal
03/27/2026 05 AM PDT 3.93 59 0 Normal
03/27/2026 06 AM PDT 3.93 59 0 Normal
03/27/2026 07 AM PDT 3.93 59 0 Normal
03/27/2026 08 AM PDT 3.92 58 - Normal
03/27/2026 09 AM PDT 3.92 58 0 Normal
03/27/2026 10 AM PDT 3.92 58 0 Normal
03/27/2026 11 AM PDT 3.92 58 0 Normal
03/27/2026 12 PM PDT 3.92 58 0 Normal
03/27/2026 01 PM PDT 3.92 58 0 Normal
03/27/2026 02 PM PDT 3.92 58 0 Normal
03/27/2026 03 PM PDT 3.92 58 0 Normal
03/27/2026 04 PM PDT 3.92 58 0 Normal
03/27/2026 05 PM PDT 3.92 58 0 Normal
03/27/2026 06 PM PDT 3.92 58 0 Normal
03/27/2026 07 PM PDT 3.92 58 0 Normal
03/27/2026 08 PM PDT 3.91 58 - Normal
03/27/2026 09 PM PDT 3.91 58 0 Normal
03/27/2026 10 PM PDT 3.91 58 0 Normal
03/27/2026 11 PM PDT 3.91 58 0 Normal
03/28/2026 12 AM PDT 3.91 58 0 Normal
03/28/2026 01 AM PDT 3.91 58 0 Normal
03/28/2026 02 AM PDT 3.91 58 0 Normal
03/28/2026 03 AM PDT 3.91 58 0 Normal
03/28/2026 04 AM PDT 3.91 58 0 Normal
03/28/2026 05 AM PDT 3.90 57 - 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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