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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: | Oct 21 2026 at 7:24 AM PDT | Next Issuance: | Oct 22 2026 at 9:00 AM PDT
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| Action: 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: 10/21/2026 at 07:25 AM PDT
# Data Interval: 1 Hour
#
# Most Recent Date & Time of Maximum Observed: 10/21/2026 at 07:00 AM PDT
# Maximum Observed Stage: 55.48 Feet
# Maximum Observed Flow: 2 cfs
#
# Earliest Date & Time of Maximum Forecast: 10/23/2026 at 04:00 AM PDT
# Maximum Forecast Stage: 56.16 Feet
# Maximum Forecast Flow: 7 cfs
#
# OBSERVED
#
# Date & Time (Local) Stage (Feet) Flow (cfs) Trend Observed Status
# ---------------------------------------------------------------------------------
10/16/2026 07 AM PDT 55.45 2 Normal
10/16/2026 08 AM PDT 55.45 2 0 Normal
10/16/2026 09 AM PDT 55.45 2 0 Normal
10/16/2026 10 AM PDT 55.45 2 0 Normal
10/16/2026 11 AM PDT 55.46 2 + Normal
10/16/2026 12 PM PDT 55.46 2 0 Normal
10/16/2026 01 PM PDT 55.46 2 0 Normal
10/16/2026 02 PM PDT 55.46 2 0 Normal
10/16/2026 03 PM PDT 55.46 2 0 Normal
10/16/2026 04 PM PDT 55.46 2 0 Normal
10/16/2026 05 PM PDT 55.46 2 0 Normal
10/16/2026 06 PM PDT 55.46 2 0 Normal
10/16/2026 07 PM PDT 55.46 2 0 Normal
10/16/2026 08 PM PDT 55.46 2 0 Normal
10/16/2026 09 PM PDT 55.45 2 - Normal
10/16/2026 10 PM PDT 55.45 2 0 Normal
10/16/2026 11 PM PDT 55.45 2 0 Normal
10/17/2026 12 AM PDT 55.45 2 0 Normal
10/17/2026 01 AM PDT 55.45 2 0 Normal
10/17/2026 02 AM PDT 55.45 2 0 Normal
10/17/2026 03 AM PDT 55.45 2 0 Normal
10/17/2026 04 AM PDT 55.45 2 0 Normal
10/17/2026 05 AM PDT 55.45 2 0 Normal
10/17/2026 06 AM PDT 55.45 2 0 Normal
10/17/2026 07 AM PDT 55.45 2 0 Normal
10/17/2026 08 AM PDT 55.45 2 0 Normal
10/17/2026 09 AM PDT 55.45 2 0 Normal
10/17/2026 10 AM PDT 55.45 2 0 Normal
10/17/2026 11 AM PDT 55.45 2 0 Normal
10/17/2026 12 PM PDT 55.45 2 0 Normal
10/17/2026 01 PM PDT 55.45 2 0 Normal
10/17/2026 02 PM PDT 55.46 2 + Normal
10/17/2026 03 PM PDT 55.46 2 0 Normal
10/17/2026 04 PM PDT 55.46 2 0 Normal
10/17/2026 05 PM PDT 55.46 2 0 Normal
10/17/2026 06 PM PDT 55.46 2 0 Normal
10/17/2026 07 PM PDT 55.46 2 0 Normal
10/17/2026 08 PM PDT 55.46 2 0 Normal
10/17/2026 09 PM PDT 55.46 2 0 Normal
10/17/2026 10 PM PDT 55.46 2 0 Normal
10/17/2026 11 PM PDT 55.46 2 0 Normal
10/18/2026 12 AM PDT 55.46 2 0 Normal
10/18/2026 01 AM PDT 55.46 2 0 Normal
10/18/2026 02 AM PDT 55.46 2 0 Normal
10/18/2026 03 AM PDT 55.46 2 0 Normal
10/18/2026 04 AM PDT 55.46 2 0 Normal
10/18/2026 05 AM PDT 55.46 2 0 Normal
10/18/2026 06 AM PDT 55.46 2 0 Normal
10/18/2026 07 AM PDT 55.46 2 0 Normal
10/18/2026 08 AM PDT 55.46 2 0 Normal
10/18/2026 09 AM PDT 55.46 2 0 Normal
10/18/2026 10 AM PDT 55.46 2 0 Normal
10/18/2026 11 AM PDT 55.46 2 0 Normal
10/18/2026 12 PM PDT 55.46 2 0 Normal
10/18/2026 01 PM PDT 55.46 2 0 Normal
10/18/2026 02 PM PDT 55.46 2 0 Normal
10/18/2026 03 PM PDT 55.47 2 + Normal
10/18/2026 04 PM PDT 55.47 2 0 Normal
10/18/2026 05 PM PDT 55.47 2 0 Normal
10/18/2026 06 PM PDT 55.47 2 0 Normal
10/18/2026 07 PM PDT 55.46 2 - Normal
10/18/2026 08 PM PDT 55.46 2 0 Normal
10/18/2026 09 PM PDT 55.46 2 0 Normal
10/18/2026 10 PM PDT 55.46 2 0 Normal
10/18/2026 11 PM PDT 55.46 2 0 Normal
10/19/2026 12 AM PDT 55.46 2 0 Normal
10/19/2026 01 AM PDT 55.46 2 0 Normal
10/19/2026 02 AM PDT 55.46 2 0 Normal
10/19/2026 03 AM PDT 55.46 2 0 Normal
10/19/2026 04 AM PDT 55.47 2 + Normal
10/19/2026 05 AM PDT 55.47 2 0 Normal
10/19/2026 06 AM PDT 55.47 2 0 Normal
10/19/2026 07 AM PDT 55.47 2 0 Normal
10/19/2026 08 AM PDT 55.47 2 0 Normal
10/19/2026 09 AM PDT 55.47 2 0 Normal
10/19/2026 10 AM PDT 55.47 2 0 Normal
10/19/2026 11 AM PDT 55.47 2 0 Normal
10/19/2026 12 PM PDT 55.47 2 0 Normal
10/19/2026 01 PM PDT 55.47 2 0 Normal
10/19/2026 02 PM PDT 55.47 2 0 Normal
10/19/2026 03 PM PDT 55.47 2 0 Normal
10/19/2026 04 PM PDT 55.47 2 0 Normal
10/19/2026 05 PM PDT 55.47 2 0 Normal
10/19/2026 06 PM PDT 55.47 2 0 Normal
10/19/2026 07 PM PDT 55.47 2 0 Normal
10/19/2026 08 PM PDT 55.47 2 0 Normal
10/19/2026 09 PM PDT 55.47 2 0 Normal
10/19/2026 10 PM PDT 55.47 2 0 Normal
10/19/2026 11 PM PDT 55.47 2 0 Normal
10/20/2026 12 AM PDT 55.47 2 0 Normal
10/20/2026 01 AM PDT 55.47 2 0 Normal
10/20/2026 02 AM PDT 55.47 2 0 Normal
10/20/2026 03 AM PDT 55.47 2 0 Normal
10/20/2026 04 AM PDT 55.47 2 0 Normal
10/20/2026 05 AM PDT 55.47 2 0 Normal
10/20/2026 06 AM PDT 55.47 2 0 Normal
10/20/2026 07 AM PDT 55.47 2 0 Normal
10/20/2026 08 AM PDT 55.47 2 0 Normal
10/20/2026 09 AM PDT 55.47 2 0 Normal
10/20/2026 10 AM PDT 55.47 2 0 Normal
10/20/2026 11 AM PDT 55.47 2 0 Normal
10/20/2026 12 PM PDT 55.48 2 + Normal
10/20/2026 01 PM PDT 55.48 2 0 Normal
10/20/2026 02 PM PDT 55.48 2 0 Normal
10/20/2026 03 PM PDT 55.48 2 0 Normal
10/20/2026 04 PM PDT 55.48 2 0 Normal
10/20/2026 05 PM PDT 55.48 2 0 Normal
10/20/2026 06 PM PDT 55.48 2 0 Normal
10/20/2026 07 PM PDT 55.48 2 0 Normal
10/20/2026 08 PM PDT 55.48 2 0 Normal
10/20/2026 09 PM PDT 55.48 2 0 Normal
10/20/2026 10 PM PDT 55.48 2 0 Normal
10/20/2026 11 PM PDT 55.48 2 0 Normal
10/21/2026 12 AM PDT 55.48 2 0 Normal
10/21/2026 01 AM PDT 55.48 2 0 Normal
10/21/2026 02 AM PDT 55.48 2 0 Normal
10/21/2026 03 AM PDT 55.48 2 0 Normal
10/21/2026 04 AM PDT 55.48 2 0 Normal
10/21/2026 05 AM PDT 55.48 2 0 Normal
10/21/2026 06 AM PDT 55.48 2 0 Normal
10/21/2026 07 AM PDT 55.48 2 0 Normal
#
# FORECAST
#
# Date & Time (Local) Stage (Feet) Flow (cfs) Trend Forecast Status
# ---------------------------------------------------------------------------------
10/21/2026 08 AM PDT 55.48 2 Normal
10/21/2026 09 AM PDT 55.48 2 0 Normal
10/21/2026 10 AM PDT 55.48 2 0 Normal
10/21/2026 11 AM PDT 55.48 2 0 Normal
10/21/2026 12 PM PDT 55.48 2 0 Normal
10/21/2026 01 PM PDT 55.48 2 0 Normal
10/21/2026 02 PM PDT 55.48 2 0 Normal
10/21/2026 03 PM PDT 55.48 2 0 Normal
10/21/2026 04 PM PDT 55.48 2 0 Normal
10/21/2026 05 PM PDT 55.48 2 0 Normal
10/21/2026 06 PM PDT 55.48 2 0 Normal
10/21/2026 07 PM PDT 55.48 2 0 Normal
10/21/2026 08 PM PDT 55.48 2 0 Normal
10/21/2026 09 PM PDT 55.48 2 0 Normal
10/21/2026 10 PM PDT 55.48 2 0 Normal
10/21/2026 11 PM PDT 55.48 2 0 Normal
10/22/2026 12 AM PDT 55.48 2 0 Normal
10/22/2026 01 AM PDT 55.48 2 0 Normal
10/22/2026 02 AM PDT 55.48 2 0 Normal
10/22/2026 03 AM PDT 55.48 2 0 Normal
10/22/2026 04 AM PDT 55.48 2 0 Normal
10/22/2026 05 AM PDT 55.48 2 0 Normal
10/22/2026 06 AM PDT 55.48 2 0 Normal
10/22/2026 07 AM PDT 55.48 2 0 Normal
10/22/2026 08 AM PDT 55.48 2 0 Normal
10/22/2026 09 AM PDT 55.48 2 0 Normal
10/22/2026 10 AM PDT 55.48 2 0 Normal
10/22/2026 11 AM PDT 55.48 2 0 Normal
10/22/2026 12 PM PDT 55.48 2 0 Normal
10/22/2026 01 PM PDT 55.48 2 0 Normal
10/22/2026 02 PM PDT 55.48 2 0 Normal
10/22/2026 03 PM PDT 55.48 2 0 Normal
10/22/2026 04 PM PDT 55.48 2 0 Normal
10/22/2026 05 PM PDT 55.56 2 + Normal
10/22/2026 06 PM PDT 55.63 2 + Normal
10/22/2026 07 PM PDT 55.74 3 + Normal
10/22/2026 08 PM PDT 55.86 4 + Normal
10/22/2026 09 PM PDT 55.94 5 + Normal
10/22/2026 10 PM PDT 55.99 5 + Normal
10/22/2026 11 PM PDT 56.03 6 + Normal
10/23/2026 12 AM PDT 56.06 6 + Normal
10/23/2026 01 AM PDT 56.09 6 + Normal
10/23/2026 02 AM PDT 56.12 7 + Normal
10/23/2026 03 AM PDT 56.14 7 + Normal
10/23/2026 04 AM PDT 56.16 7 + Normal
10/23/2026 05 AM PDT 56.16 7 0 Normal
10/23/2026 06 AM PDT 56.16 7 0 Normal
10/23/2026 07 AM PDT 56.16 7 0 Normal
10/23/2026 08 AM PDT 56.16 7 0 Normal
10/23/2026 09 AM PDT 56.15 7 - Normal
10/23/2026 10 AM PDT 56.14 7 - Normal
10/23/2026 11 AM PDT 56.13 7 - Normal
10/23/2026 12 PM PDT 56.11 7 - Normal
10/23/2026 01 PM PDT 56.10 7 - Normal
10/23/2026 02 PM PDT 56.09 6 - Normal
10/23/2026 03 PM PDT 56.07 6 - Normal
10/23/2026 04 PM PDT 56.06 6 - Normal
10/23/2026 05 PM PDT 56.04 6 - Normal
10/23/2026 06 PM PDT 56.03 6 - Normal
10/23/2026 07 PM PDT 56.01 6 - Normal
10/23/2026 08 PM PDT 56.00 5 - Normal
10/23/2026 09 PM PDT 55.98 5 - Normal
10/23/2026 10 PM PDT 55.96 5 - Normal
10/23/2026 11 PM PDT 55.95 5 - Normal
10/24/2026 12 AM PDT 55.93 5 - Normal
10/24/2026 01 AM PDT 55.91 5 - Normal
10/24/2026 02 AM PDT 55.89 4 - Normal
10/24/2026 03 AM PDT 55.86 4 - Normal
10/24/2026 04 AM PDT 55.83 4 - Normal
10/24/2026 05 AM PDT 55.81 3 - Normal
10/24/2026 06 AM PDT 55.78 3 - Normal
10/24/2026 07 AM PDT 55.75 3 - Normal
10/24/2026 08 AM PDT 55.72 3 - Normal
10/24/2026 09 AM PDT 55.70 3 - Normal
10/24/2026 10 AM PDT 55.67 3 - Normal
10/24/2026 11 AM PDT 55.65 3 - Normal
10/24/2026 12 PM PDT 55.64 3 - Normal
10/24/2026 01 PM PDT 55.63 2 - Normal
10/24/2026 02 PM PDT 55.62 2 - Normal
10/24/2026 03 PM PDT 55.60 2 - Normal
10/24/2026 04 PM PDT 55.59 2 - Normal
10/24/2026 05 PM PDT 55.58 2 - Normal
10/24/2026 06 PM PDT 55.57 2 - Normal
10/24/2026 07 PM PDT 55.56 2 - Normal
10/24/2026 08 PM PDT 55.55 2 - Normal
10/24/2026 09 PM PDT 55.53 2 - Normal
10/24/2026 10 PM PDT 55.52 2 - Normal
10/24/2026 11 PM PDT 55.51 2 - Normal
10/25/2026 12 AM PDT 55.50 2 - Normal
10/25/2026 01 AM PDT 55.49 2 - Normal
10/25/2026 02 AM PDT 55.48 2 - Normal
10/25/2026 03 AM PDT 55.48 2 0 Normal
10/25/2026 04 AM PDT 55.48 2 0 Normal
10/25/2026 05 AM PDT 55.48 2 0 Normal
10/25/2026 06 AM PDT 55.48 2 0 Normal
10/25/2026 07 AM PDT 55.48 2 0 Normal
10/25/2026 08 AM PDT 55.48 2 0 Normal
10/25/2026 09 AM PDT 55.48 2 0 Normal
10/25/2026 10 AM PDT 55.48 2 0 Normal
10/25/2026 11 AM PDT 55.48 2 0 Normal
10/25/2026 12 PM PDT 55.48 2 0 Normal
10/25/2026 01 PM PDT 55.47 2 - Normal
10/25/2026 02 PM PDT 55.47 2 0 Normal
10/25/2026 03 PM PDT 55.47 2 0 Normal
10/25/2026 04 PM PDT 55.47 2 0 Normal
10/25/2026 05 PM PDT 55.47 2 0 Normal
10/25/2026 06 PM PDT 55.47 2 0 Normal
10/25/2026 07 PM PDT 55.47 2 0 Normal
10/25/2026 08 PM PDT 55.47 2 0 Normal
10/25/2026 09 PM PDT 55.47 2 0 Normal
10/25/2026 10 PM PDT 55.47 2 0 Normal
10/25/2026 11 PM PDT 55.47 2 0 Normal
10/26/2026 12 AM PDT 55.47 2 0 Normal
10/26/2026 01 AM PDT 55.47 2 0 Normal
10/26/2026 02 AM PDT 55.47 2 0 Normal
10/26/2026 03 AM PDT 55.47 2 0 Normal
10/26/2026 04 AM PDT 55.47 2 0 Normal
10/26/2026 05 AM PDT 55.47 2 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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