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LAGUNA DE SANTA ROSA - SEBASTOPOL (LSEC1)
| Latitude: 38.43º N | Longitude: 122.83º W | Elevation: 50 Feet | | Forecast Type: Unofficial Location |
| Location: Sonoma County in California | Bulletin Group: Russian Napa | River Group: Russian Napa |
| Issuance Time: | Mar 17 2026 at 6:43 AM PDT | Next Issuance: | Mar 17 2026 at 3:00 PM PDT
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| Action/Monitor: 67.0 Feet | Minor Flood: 69.0 Feet | Moderate Flood: N/A | Major Flood: N/A |
# Tabular Observed and Forecast Hydrograph Information
#
# Location: Laguna De Santa Rosa - Sebastopol (LSEC1)
#
# File Generation Time: 03/17/2026 at 06:45 AM PDT
# Data Interval: 1 Hour
#
# Most Recent Date & Time of Maximum Observed: 03/12/2026 at 08:00 AM PDT
# Maximum Observed Stage: 57.18 Feet
# Maximum Observed Flow: 29 cfs
#
# Earliest Date & Time of Maximum Forecast: 03/17/2026 at 07:00 AM PDT
# Maximum Forecast Stage: 56.91 Feet
# Maximum Forecast Flow: 21 cfs
#
# OBSERVED
#
# Date & Time (Local) Stage (Feet) Flow (cfs) Trend Observed Status
# ---------------------------------------------------------------------------------
03/12/2026 06 AM PDT 57.18 29 Normal
03/12/2026 07 AM PDT 57.18 29 0 Normal
03/12/2026 08 AM PDT 57.18 29 0 Normal
03/12/2026 09 AM PDT 57.17 29 - Normal
03/12/2026 10 AM PDT 57.17 29 0 Normal
03/12/2026 11 AM PDT 57.17 29 0 Normal
03/12/2026 12 PM PDT 57.17 29 0 Normal
03/12/2026 01 PM PDT 57.16 29 - Normal
03/12/2026 02 PM PDT 57.16 29 0 Normal
03/12/2026 03 PM PDT 57.16 29 0 Normal
03/12/2026 04 PM PDT 57.16 29 0 Normal
03/12/2026 05 PM PDT 57.15 28 - Normal
03/12/2026 06 PM PDT 57.15 28 0 Normal
03/12/2026 07 PM PDT 57.15 28 0 Normal
03/12/2026 08 PM PDT 57.14 28 - Normal
03/12/2026 09 PM PDT 57.14 28 0 Normal
03/12/2026 10 PM PDT 57.13 28 - Normal
03/12/2026 11 PM PDT 57.13 28 0 Normal
03/13/2026 12 AM PDT 57.13 28 0 Normal
03/13/2026 01 AM PDT 57.12 27 - Normal
03/13/2026 02 AM PDT 57.12 27 0 Normal
03/13/2026 03 AM PDT 57.12 27 0 Normal
03/13/2026 04 AM PDT 57.12 27 0 Normal
03/13/2026 05 AM PDT 57.11 27 - Normal
03/13/2026 06 AM PDT 57.11 27 0 Normal
03/13/2026 07 AM PDT 57.11 27 0 Normal
03/13/2026 08 AM PDT 57.11 27 0 Normal
03/13/2026 09 AM PDT 57.11 27 0 Normal
03/13/2026 10 AM PDT 57.10 27 - Normal
03/13/2026 11 AM PDT 57.10 27 0 Normal
03/13/2026 12 PM PDT 57.10 27 0 Normal
03/13/2026 01 PM PDT 57.10 27 0 Normal
03/13/2026 02 PM PDT 57.09 27 - Normal
03/13/2026 03 PM PDT 57.09 27 0 Normal
03/13/2026 04 PM PDT 57.09 27 0 Normal
03/13/2026 05 PM PDT 57.09 27 0 Normal
03/13/2026 06 PM PDT 57.08 26 - Normal
03/13/2026 07 PM PDT 57.08 26 0 Normal
03/13/2026 08 PM PDT 57.08 26 0 Normal
03/13/2026 09 PM PDT 57.08 26 0 Normal
03/13/2026 10 PM PDT 57.07 26 - Normal
03/13/2026 11 PM PDT 57.07 26 0 Normal
03/14/2026 12 AM PDT 57.07 26 0 Normal
03/14/2026 01 AM PDT 57.06 26 - Normal
03/14/2026 02 AM PDT 57.06 26 0 Normal
03/14/2026 03 AM PDT 57.06 26 0 Normal
03/14/2026 04 AM PDT 57.06 26 0 Normal
03/14/2026 05 AM PDT 57.05 25 - Normal
03/14/2026 06 AM PDT 57.05 25 0 Normal
03/14/2026 07 AM PDT 57.05 25 0 Normal
03/14/2026 08 AM PDT 57.05 25 0 Normal
03/14/2026 09 AM PDT 57.05 25 0 Normal
03/14/2026 10 AM PDT 57.05 25 0 Normal
03/14/2026 11 AM PDT 57.04 25 - Normal
03/14/2026 12 PM PDT 57.04 25 0 Normal
03/14/2026 01 PM PDT 57.04 25 0 Normal
03/14/2026 02 PM PDT 57.04 25 0 Normal
03/14/2026 03 PM PDT 57.04 25 0 Normal
03/14/2026 04 PM PDT 57.03 25 - Normal
03/14/2026 05 PM PDT 57.03 25 0 Normal
03/14/2026 06 PM PDT 57.03 25 0 Normal
03/14/2026 07 PM PDT 57.03 25 0 Normal
03/14/2026 08 PM PDT 57.02 24 - Normal
03/14/2026 09 PM PDT 57.02 24 0 Normal
03/14/2026 10 PM PDT 57.02 24 0 Normal
03/14/2026 11 PM PDT 57.02 24 0 Normal
03/15/2026 12 AM PDT 57.01 24 - Normal
03/15/2026 01 AM PDT 57.01 24 0 Normal
03/15/2026 02 AM PDT 57.01 24 0 Normal
03/15/2026 03 AM PDT 57.01 24 0 Normal
03/15/2026 04 AM PDT 57.00 24 - Normal
03/15/2026 05 AM PDT 57.00 24 0 Normal
03/15/2026 06 AM PDT 57.00 24 0 Normal
03/15/2026 07 AM PDT 57.00 24 0 Normal
03/15/2026 08 AM PDT 57.00 24 0 Normal
03/15/2026 09 AM PDT 57.00 24 0 Normal
03/15/2026 10 AM PDT 57.00 24 0 Normal
03/15/2026 11 AM PDT 56.99 24 - Normal
03/15/2026 12 PM PDT 56.99 24 0 Normal
03/15/2026 01 PM PDT 56.99 24 0 Normal
03/15/2026 02 PM PDT 56.99 24 0 Normal
03/15/2026 03 PM PDT 56.99 24 0 Normal
03/15/2026 04 PM PDT 56.99 24 0 Normal
03/15/2026 05 PM PDT 56.98 23 - Normal
03/15/2026 06 PM PDT 56.98 23 0 Normal
03/15/2026 07 PM PDT 56.98 23 0 Normal
03/15/2026 08 PM PDT 56.98 23 0 Normal
03/15/2026 09 PM PDT 56.98 23 0 Normal
03/15/2026 10 PM PDT 56.97 23 - Normal
03/15/2026 11 PM PDT 56.97 23 0 Normal
03/16/2026 12 AM PDT 56.97 23 0 Normal
03/16/2026 01 AM PDT 56.96 23 - Normal
03/16/2026 02 AM PDT 56.96 23 0 Normal
03/16/2026 03 AM PDT 56.96 23 0 Normal
03/16/2026 04 AM PDT 56.96 23 0 Normal
03/16/2026 05 AM PDT 56.96 23 0 Normal
03/16/2026 06 AM PDT 56.96 23 0 Normal
03/16/2026 07 AM PDT 56.95 22 - Normal
03/16/2026 08 AM PDT 56.95 22 0 Normal
03/16/2026 09 AM PDT 56.95 22 0 Normal
03/16/2026 10 AM PDT 56.95 22 0 Normal
03/16/2026 11 AM PDT 56.95 22 0 Normal
03/16/2026 12 PM PDT 56.95 22 0 Normal
03/16/2026 01 PM PDT 56.95 22 0 Normal
03/16/2026 02 PM PDT 56.94 22 - Normal
03/16/2026 03 PM PDT 56.94 22 0 Normal
03/16/2026 04 PM PDT 56.94 22 0 Normal
03/16/2026 05 PM PDT 56.94 22 0 Normal
03/16/2026 06 PM PDT 56.94 22 0 Normal
03/16/2026 07 PM PDT 56.94 22 0 Normal
03/16/2026 08 PM PDT 56.93 22 - Normal
03/16/2026 09 PM PDT 56.93 22 0 Normal
03/16/2026 10 PM PDT 56.93 22 0 Normal
03/16/2026 11 PM PDT 56.92 22 - Normal
03/17/2026 12 AM PDT 56.92 22 0 Normal
03/17/2026 01 AM PDT 56.92 22 0 Normal
03/17/2026 02 AM PDT 56.92 22 0 Normal
03/17/2026 03 AM PDT 56.92 22 0 Normal
03/17/2026 04 AM PDT 56.91 21 - Normal
03/17/2026 05 AM PDT 56.91 21 0 Normal
03/17/2026 06 AM PDT 56.91 21 0 Normal
#
# FORECAST
#
# Date & Time (Local) Stage (Feet) Flow (cfs) Trend Forecast Status
# ---------------------------------------------------------------------------------
03/17/2026 07 AM PDT 56.91 21 Normal
03/17/2026 08 AM PDT 56.91 21 0 Normal
03/17/2026 09 AM PDT 56.90 21 - Normal
03/17/2026 10 AM PDT 56.90 21 0 Normal
03/17/2026 11 AM PDT 56.90 21 0 Normal
03/17/2026 12 PM PDT 56.90 21 0 Normal
03/17/2026 01 PM PDT 56.90 21 0 Normal
03/17/2026 02 PM PDT 56.90 21 0 Normal
03/17/2026 03 PM PDT 56.89 21 - Normal
03/17/2026 04 PM PDT 56.89 21 0 Normal
03/17/2026 05 PM PDT 56.89 21 0 Normal
03/17/2026 06 PM PDT 56.89 21 0 Normal
03/17/2026 07 PM PDT 56.89 21 0 Normal
03/17/2026 08 PM PDT 56.88 21 - Normal
03/17/2026 09 PM PDT 56.88 21 0 Normal
03/17/2026 10 PM PDT 56.88 21 0 Normal
03/17/2026 11 PM PDT 56.88 21 0 Normal
03/18/2026 12 AM PDT 56.88 21 0 Normal
03/18/2026 01 AM PDT 56.88 21 0 Normal
03/18/2026 02 AM PDT 56.88 21 0 Normal
03/18/2026 03 AM PDT 56.87 20 - Normal
03/18/2026 04 AM PDT 56.87 20 0 Normal
03/18/2026 05 AM PDT 56.87 20 0 Normal
03/18/2026 06 AM PDT 56.87 20 0 Normal
03/18/2026 07 AM PDT 56.87 20 0 Normal
03/18/2026 08 AM PDT 56.87 20 0 Normal
03/18/2026 09 AM PDT 56.86 20 - Normal
03/18/2026 10 AM PDT 56.86 20 0 Normal
03/18/2026 11 AM PDT 56.86 20 0 Normal
03/18/2026 12 PM PDT 56.86 20 0 Normal
03/18/2026 01 PM PDT 56.86 20 0 Normal
03/18/2026 02 PM PDT 56.85 20 - Normal
03/18/2026 03 PM PDT 56.85 20 0 Normal
03/18/2026 04 PM PDT 56.85 20 0 Normal
03/18/2026 05 PM PDT 56.85 20 0 Normal
03/18/2026 06 PM PDT 56.85 20 0 Normal
03/18/2026 07 PM PDT 56.85 20 0 Normal
03/18/2026 08 PM PDT 56.85 20 0 Normal
03/18/2026 09 PM PDT 56.84 20 - Normal
03/18/2026 10 PM PDT 56.84 20 0 Normal
03/18/2026 11 PM PDT 56.84 20 0 Normal
03/19/2026 12 AM PDT 56.84 20 0 Normal
03/19/2026 01 AM PDT 56.84 20 0 Normal
03/19/2026 02 AM PDT 56.84 20 0 Normal
03/19/2026 03 AM PDT 56.84 20 0 Normal
03/19/2026 04 AM PDT 56.83 19 - Normal
03/19/2026 05 AM PDT 56.83 19 0 Normal
03/19/2026 06 AM PDT 56.83 19 0 Normal
03/19/2026 07 AM PDT 56.83 19 0 Normal
03/19/2026 08 AM PDT 56.83 19 0 Normal
03/19/2026 09 AM PDT 56.83 19 0 Normal
03/19/2026 10 AM PDT 56.82 19 - Normal
03/19/2026 11 AM PDT 56.82 19 0 Normal
03/19/2026 12 PM PDT 56.82 19 0 Normal
03/19/2026 01 PM PDT 56.82 19 0 Normal
03/19/2026 02 PM PDT 56.82 19 0 Normal
03/19/2026 03 PM PDT 56.82 19 0 Normal
03/19/2026 04 PM PDT 56.81 19 - Normal
03/19/2026 05 PM PDT 56.81 19 0 Normal
03/19/2026 06 PM PDT 56.81 19 0 Normal
03/19/2026 07 PM PDT 56.81 19 0 Normal
03/19/2026 08 PM PDT 56.81 19 0 Normal
03/19/2026 09 PM PDT 56.81 19 0 Normal
03/19/2026 10 PM PDT 56.80 19 - Normal
03/19/2026 11 PM PDT 56.80 19 0 Normal
03/20/2026 12 AM PDT 56.80 19 0 Normal
03/20/2026 01 AM PDT 56.80 19 0 Normal
03/20/2026 02 AM PDT 56.80 19 0 Normal
03/20/2026 03 AM PDT 56.80 19 0 Normal
03/20/2026 04 AM PDT 56.80 19 0 Normal
03/20/2026 05 AM PDT 56.79 18 - Normal
03/20/2026 06 AM PDT 56.79 18 0 Normal
03/20/2026 07 AM PDT 56.79 18 0 Normal
03/20/2026 08 AM PDT 56.79 18 0 Normal
03/20/2026 09 AM PDT 56.79 18 0 Normal
03/20/2026 10 AM PDT 56.79 18 0 Normal
03/20/2026 11 AM PDT 56.78 18 - Normal
03/20/2026 12 PM PDT 56.78 18 0 Normal
03/20/2026 01 PM PDT 56.78 18 0 Normal
03/20/2026 02 PM PDT 56.78 18 0 Normal
03/20/2026 03 PM PDT 56.78 18 0 Normal
03/20/2026 04 PM PDT 56.78 18 0 Normal
03/20/2026 05 PM PDT 56.78 18 0 Normal
03/20/2026 06 PM PDT 56.77 18 - Normal
03/20/2026 07 PM PDT 56.77 18 0 Normal
03/20/2026 08 PM PDT 56.77 18 0 Normal
03/20/2026 09 PM PDT 56.77 18 0 Normal
03/20/2026 10 PM PDT 56.77 18 0 Normal
03/20/2026 11 PM PDT 56.77 18 0 Normal
03/21/2026 12 AM PDT 56.77 18 0 Normal
03/21/2026 01 AM PDT 56.76 18 - Normal
03/21/2026 02 AM PDT 56.76 18 0 Normal
03/21/2026 03 AM PDT 56.76 18 0 Normal
03/21/2026 04 AM PDT 56.76 18 0 Normal
03/21/2026 05 AM PDT 56.76 18 0 Normal
03/21/2026 06 AM PDT 56.76 18 0 Normal
03/21/2026 07 AM PDT 56.75 18 - Normal
03/21/2026 08 AM PDT 56.75 18 0 Normal
03/21/2026 09 AM PDT 56.75 18 0 Normal
03/21/2026 10 AM PDT 56.75 18 0 Normal
03/21/2026 11 AM PDT 56.75 18 0 Normal
03/21/2026 12 PM PDT 56.75 18 0 Normal
03/21/2026 01 PM PDT 56.74 17 - Normal
03/21/2026 02 PM PDT 56.74 17 0 Normal
03/21/2026 03 PM PDT 56.74 17 0 Normal
03/21/2026 04 PM PDT 56.74 17 0 Normal
03/21/2026 05 PM PDT 56.74 17 0 Normal
03/21/2026 06 PM PDT 56.74 17 0 Normal
03/21/2026 07 PM PDT 56.73 17 - Normal
03/21/2026 08 PM PDT 56.73 17 0 Normal
03/21/2026 09 PM PDT 56.73 17 0 Normal
03/21/2026 10 PM PDT 56.73 17 0 Normal
03/21/2026 11 PM PDT 56.73 17 0 Normal
03/22/2026 12 AM PDT 56.73 17 0 Normal
03/22/2026 01 AM PDT 56.73 17 0 Normal
03/22/2026 02 AM PDT 56.72 17 - Normal
03/22/2026 03 AM PDT 56.72 17 0 Normal
03/22/2026 04 AM PDT 56.72 17 0 Normal
03/22/2026 05 AM PDT 56.72 17 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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