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LAGUNA DE SANTA ROSA - SEBASTOPOL (LSEC1)
| Latitude: 38.43º N | Longitude: 122.83º W | Elevation: 50 Feet | | | |
| Location: Sonoma County in California | Bulletin Group: Russian Napa | River Group: Russian Napa |
| Issuance Time: | Jan 21 2026 at 2:26 PM PST | Next Issuance: | Jan 22 2026 at 9:00 AM PST
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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: 01/21/2026 at 02:28 PM PST
# Data Interval: 1 Hour
#
# Most Recent Date & Time of Maximum Observed: 01/16/2026 at 03:00 PM PST
# Maximum Observed Stage: 57.84 Feet
# Maximum Observed Flow: 56 cfs
#
# Earliest Date & Time of Maximum Forecast: 01/21/2026 at 03:00 PM PST
# Maximum Forecast Stage: 57.36 Feet
# Maximum Forecast Flow: 35 cfs
#
# OBSERVED
#
# Date & Time (Local) Stage (Feet) Flow (cfs) Trend Observed Status
# ---------------------------------------------------------------------------------
01/16/2026 02 PM PST 57.84 56 Normal
01/16/2026 03 PM PST 57.84 56 0 Normal
01/16/2026 04 PM PST 57.83 56 - Normal
01/16/2026 05 PM PST 57.82 55 - Normal
01/16/2026 06 PM PST 57.82 55 0 Normal
01/16/2026 07 PM PST 57.81 55 - Normal
01/16/2026 08 PM PST 57.81 55 0 Normal
01/16/2026 09 PM PST 57.80 54 - Normal
01/16/2026 10 PM PST 57.79 54 - Normal
01/16/2026 11 PM PST 57.79 54 0 Normal
01/17/2026 12 AM PST 57.78 53 - Normal
01/17/2026 01 AM PST 57.78 53 0 Normal
01/17/2026 02 AM PST 57.77 53 - Normal
01/17/2026 03 AM PST 57.77 53 0 Normal
01/17/2026 04 AM PST 57.76 52 - Normal
01/17/2026 05 AM PST 57.76 52 0 Normal
01/17/2026 06 AM PST 57.75 52 - Normal
01/17/2026 07 AM PST 57.75 52 0 Normal
01/17/2026 08 AM PST 57.74 51 - Normal
01/17/2026 09 AM PST 57.74 51 0 Normal
01/17/2026 10 AM PST 57.73 51 - Normal
01/17/2026 11 AM PST 57.73 51 0 Normal
01/17/2026 12 PM PST 57.73 51 0 Normal
01/17/2026 01 PM PST 57.72 50 - Normal
01/17/2026 02 PM PST 57.72 50 0 Normal
01/17/2026 03 PM PST 57.71 50 - Normal
01/17/2026 04 PM PST 57.71 50 0 Normal
01/17/2026 05 PM PST 57.70 50 - Normal
01/17/2026 06 PM PST 57.70 50 0 Normal
01/17/2026 07 PM PST 57.70 50 0 Normal
01/17/2026 08 PM PST 57.69 49 - Normal
01/17/2026 09 PM PST 57.68 49 - Normal
01/17/2026 10 PM PST 57.68 49 0 Normal
01/17/2026 11 PM PST 57.67 48 - Normal
01/18/2026 12 AM PST 57.67 48 0 Normal
01/18/2026 01 AM PST 57.67 48 0 Normal
01/18/2026 02 AM PST 57.66 48 - Normal
01/18/2026 03 AM PST 57.66 48 0 Normal
01/18/2026 04 AM PST 57.65 47 - Normal
01/18/2026 05 AM PST 57.65 47 0 Normal
01/18/2026 06 AM PST 57.64 47 - Normal
01/18/2026 07 AM PST 57.64 47 0 Normal
01/18/2026 08 AM PST 57.63 46 - Normal
01/18/2026 09 AM PST 57.63 46 0 Normal
01/18/2026 10 AM PST 57.63 46 0 Normal
01/18/2026 11 AM PST 57.62 46 - Normal
01/18/2026 12 PM PST 57.62 46 0 Normal
01/18/2026 01 PM PST 57.61 45 - Normal
01/18/2026 02 PM PST 57.61 45 0 Normal
01/18/2026 03 PM PST 57.61 45 0 Normal
01/18/2026 04 PM PST 57.60 45 - Normal
01/18/2026 05 PM PST 57.60 45 0 Normal
01/18/2026 06 PM PST 57.60 45 0 Normal
01/18/2026 07 PM PST 57.59 44 - Normal
01/18/2026 08 PM PST 57.59 44 0 Normal
01/18/2026 09 PM PST 57.58 44 - Normal
01/18/2026 10 PM PST 57.58 44 0 Normal
01/18/2026 11 PM PST 57.57 44 - Normal
01/19/2026 12 AM PST 57.57 44 0 Normal
01/19/2026 01 AM PST 57.56 43 - Normal
01/19/2026 02 AM PST 57.56 43 0 Normal
01/19/2026 03 AM PST 57.56 43 0 Normal
01/19/2026 04 AM PST 57.55 43 - Normal
01/19/2026 05 AM PST 57.55 43 0 Normal
01/19/2026 06 AM PST 57.54 42 - Normal
01/19/2026 07 AM PST 57.54 42 0 Normal
01/19/2026 08 AM PST 57.54 42 0 Normal
01/19/2026 09 AM PST 57.53 42 - Normal
01/19/2026 10 AM PST 57.53 42 0 Normal
01/19/2026 11 AM PST 57.53 42 0 Normal
01/19/2026 12 PM PST 57.52 42 - Normal
01/19/2026 01 PM PST 57.52 42 0 Normal
01/19/2026 02 PM PST 57.52 42 0 Normal
01/19/2026 03 PM PST 57.51 41 - Normal
01/19/2026 04 PM PST 57.51 41 0 Normal
01/19/2026 05 PM PST 57.51 41 0 Normal
01/19/2026 06 PM PST 57.50 41 - Normal
01/19/2026 07 PM PST 57.50 41 0 Normal
01/19/2026 08 PM PST 57.49 40 - Normal
01/19/2026 09 PM PST 57.49 40 0 Normal
01/19/2026 10 PM PST 57.49 40 0 Normal
01/19/2026 11 PM PST 57.48 40 - Normal
01/20/2026 12 AM PST 57.48 40 0 Normal
01/20/2026 01 AM PST 57.47 40 - Normal
01/20/2026 02 AM PST 57.47 40 0 Normal
01/20/2026 03 AM PST 57.47 40 0 Normal
01/20/2026 04 AM PST 57.46 39 - Normal
01/20/2026 05 AM PST 57.46 39 0 Normal
01/20/2026 06 AM PST 57.46 39 0 Normal
01/20/2026 07 AM PST 57.45 39 - Normal
01/20/2026 08 AM PST 57.45 39 0 Normal
01/20/2026 09 AM PST 57.45 39 0 Normal
01/20/2026 10 AM PST 57.44 38 - Normal
01/20/2026 11 AM PST 57.44 38 0 Normal
01/20/2026 12 PM PST 57.44 38 0 Normal
01/20/2026 01 PM PST 57.44 38 0 Normal
01/20/2026 02 PM PST 57.43 38 - Normal
01/20/2026 03 PM PST 57.43 38 0 Normal
01/20/2026 04 PM PST 57.43 38 0 Normal
01/20/2026 05 PM PST 57.42 38 - Normal
01/20/2026 06 PM PST 57.42 38 0 Normal
01/20/2026 07 PM PST 57.42 38 0 Normal
01/20/2026 08 PM PST 57.42 38 0 Normal
01/20/2026 09 PM PST 57.41 37 - Normal
01/20/2026 10 PM PST 57.41 37 0 Normal
01/20/2026 11 PM PST 57.41 37 0 Normal
01/21/2026 12 AM PST 57.40 37 - Normal
01/21/2026 01 AM PST 57.40 37 0 Normal
01/21/2026 02 AM PST 57.40 37 0 Normal
01/21/2026 03 AM PST 57.39 36 - Normal
01/21/2026 04 AM PST 57.39 36 0 Normal
01/21/2026 05 AM PST 57.39 36 0 Normal
01/21/2026 06 AM PST 57.39 36 0 Normal
01/21/2026 07 AM PST 57.38 36 - Normal
01/21/2026 08 AM PST 57.38 36 0 Normal
01/21/2026 09 AM PST 57.38 36 0 Normal
01/21/2026 10 AM PST 57.37 36 - Normal
01/21/2026 11 AM PST 57.37 36 0 Normal
01/21/2026 12 PM PST 57.37 36 0 Normal
01/21/2026 01 PM PST 57.37 36 0 Normal
01/21/2026 02 PM PST 57.37 36 0 Normal
#
# FORECAST
#
# Date & Time (Local) Stage (Feet) Flow (cfs) Trend Forecast Status
# ---------------------------------------------------------------------------------
01/21/2026 03 PM PST 57.36 35 Normal
01/21/2026 04 PM PST 57.36 35 0 Normal
01/21/2026 05 PM PST 57.36 35 0 Normal
01/21/2026 06 PM PST 57.35 35 - Normal
01/21/2026 07 PM PST 57.35 35 0 Normal
01/21/2026 08 PM PST 57.35 35 0 Normal
01/21/2026 09 PM PST 57.35 35 0 Normal
01/21/2026 10 PM PST 57.34 35 - Normal
01/21/2026 11 PM PST 57.34 35 0 Normal
01/22/2026 12 AM PST 57.34 35 0 Normal
01/22/2026 01 AM PST 57.34 35 0 Normal
01/22/2026 02 AM PST 57.33 34 - Normal
01/22/2026 03 AM PST 57.33 34 0 Normal
01/22/2026 04 AM PST 57.33 34 0 Normal
01/22/2026 05 AM PST 57.33 34 0 Normal
01/22/2026 06 AM PST 57.33 34 0 Normal
01/22/2026 07 AM PST 57.32 34 - Normal
01/22/2026 08 AM PST 57.32 34 0 Normal
01/22/2026 09 AM PST 57.32 34 0 Normal
01/22/2026 10 AM PST 57.31 33 - Normal
01/22/2026 11 AM PST 57.31 33 0 Normal
01/22/2026 12 PM PST 57.31 33 0 Normal
01/22/2026 01 PM PST 57.31 33 0 Normal
01/22/2026 02 PM PST 57.30 33 - Normal
01/22/2026 03 PM PST 57.30 33 0 Normal
01/22/2026 04 PM PST 57.30 33 0 Normal
01/22/2026 05 PM PST 57.30 33 0 Normal
01/22/2026 06 PM PST 57.30 33 0 Normal
01/22/2026 07 PM PST 57.29 33 - Normal
01/22/2026 08 PM PST 57.29 33 0 Normal
01/22/2026 09 PM PST 57.29 33 0 Normal
01/22/2026 10 PM PST 57.29 33 0 Normal
01/22/2026 11 PM PST 57.28 32 - Normal
01/23/2026 12 AM PST 57.28 32 0 Normal
01/23/2026 01 AM PST 57.28 32 0 Normal
01/23/2026 02 AM PST 57.28 32 0 Normal
01/23/2026 03 AM PST 57.28 32 0 Normal
01/23/2026 04 AM PST 57.27 32 - Normal
01/23/2026 05 AM PST 57.27 32 0 Normal
01/23/2026 06 AM PST 57.27 32 0 Normal
01/23/2026 07 AM PST 57.27 32 0 Normal
01/23/2026 08 AM PST 57.27 32 0 Normal
01/23/2026 09 AM PST 57.26 32 - Normal
01/23/2026 10 AM PST 57.26 32 0 Normal
01/23/2026 11 AM PST 57.26 32 0 Normal
01/23/2026 12 PM PST 57.26 32 0 Normal
01/23/2026 01 PM PST 57.25 31 - Normal
01/23/2026 02 PM PST 57.25 31 0 Normal
01/23/2026 03 PM PST 57.25 31 0 Normal
01/23/2026 04 PM PST 57.25 31 0 Normal
01/23/2026 05 PM PST 57.25 31 0 Normal
01/23/2026 06 PM PST 57.24 31 - Normal
01/23/2026 07 PM PST 57.24 31 0 Normal
01/23/2026 08 PM PST 57.24 31 0 Normal
01/23/2026 09 PM PST 57.24 31 0 Normal
01/23/2026 10 PM PST 57.24 31 0 Normal
01/23/2026 11 PM PST 57.23 31 - Normal
01/24/2026 12 AM PST 57.23 31 0 Normal
01/24/2026 01 AM PST 57.23 31 0 Normal
01/24/2026 02 AM PST 57.23 31 0 Normal
01/24/2026 03 AM PST 57.23 31 0 Normal
01/24/2026 04 AM PST 57.23 31 0 Normal
01/24/2026 05 AM PST 57.22 30 - Normal
01/24/2026 06 AM PST 57.22 30 0 Normal
01/24/2026 07 AM PST 57.22 30 0 Normal
01/24/2026 08 AM PST 57.22 30 0 Normal
01/24/2026 09 AM PST 57.22 30 0 Normal
01/24/2026 10 AM PST 57.21 30 - Normal
01/24/2026 11 AM PST 57.21 30 0 Normal
01/24/2026 12 PM PST 57.21 30 0 Normal
01/24/2026 01 PM PST 57.21 30 0 Normal
01/24/2026 02 PM PST 57.21 30 0 Normal
01/24/2026 03 PM PST 57.20 30 - Normal
01/24/2026 04 PM PST 57.20 30 0 Normal
01/24/2026 05 PM PST 57.20 30 0 Normal
01/24/2026 06 PM PST 57.20 30 0 Normal
01/24/2026 07 PM PST 57.20 30 0 Normal
01/24/2026 08 PM PST 57.20 30 0 Normal
01/24/2026 09 PM PST 57.19 30 - Normal
01/24/2026 10 PM PST 57.19 30 0 Normal
01/24/2026 11 PM PST 57.19 30 0 Normal
01/25/2026 12 AM PST 57.19 30 0 Normal
01/25/2026 01 AM PST 57.19 30 0 Normal
01/25/2026 02 AM PST 57.19 30 0 Normal
01/25/2026 03 AM PST 57.18 29 - Normal
01/25/2026 04 AM PST 57.18 29 0 Normal
01/25/2026 05 AM PST 57.18 29 0 Normal
01/25/2026 06 AM PST 57.18 29 0 Normal
01/25/2026 07 AM PST 57.18 29 0 Normal
01/25/2026 08 AM PST 57.18 29 0 Normal
01/25/2026 09 AM PST 57.17 29 - Normal
01/25/2026 10 AM PST 57.17 29 0 Normal
01/25/2026 11 AM PST 57.17 29 0 Normal
01/25/2026 12 PM PST 57.17 29 0 Normal
01/25/2026 01 PM PST 57.17 29 0 Normal
01/25/2026 02 PM PST 57.17 29 0 Normal
01/25/2026 03 PM PST 57.16 29 - Normal
01/25/2026 04 PM PST 57.16 29 0 Normal
01/25/2026 05 PM PST 57.16 29 0 Normal
01/25/2026 06 PM PST 57.16 29 0 Normal
01/25/2026 07 PM PST 57.16 29 0 Normal
01/25/2026 08 PM PST 57.16 29 0 Normal
01/25/2026 09 PM PST 57.16 29 0 Normal
01/25/2026 10 PM PST 57.16 29 0 Normal
01/25/2026 11 PM PST 57.15 28 - Normal
01/26/2026 12 AM PST 57.15 28 0 Normal
01/26/2026 01 AM PST 57.15 28 0 Normal
01/26/2026 02 AM PST 57.15 28 0 Normal
01/26/2026 03 AM PST 57.15 28 0 Normal
01/26/2026 04 AM PST 57.15 28 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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