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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: | Apr 23 2026 at 7:26 AM PDT | Next Issuance: | Apr 24 2026 at 9:00 AM 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: 04/23/2026 at 07:27 AM PDT
# Data Interval: 1 Hour
#
# Most Recent Date & Time of Maximum Observed: 04/23/2026 at 07:00 AM PDT
# Maximum Observed Stage: 59.06 Feet
# Maximum Observed Flow: 163 cfs
#
# Earliest Date & Time of Maximum Forecast: 04/23/2026 at 08:00 AM PDT
# Maximum Forecast Stage: 59.05 Feet
# Maximum Forecast Flow: 162 cfs
#
# OBSERVED
#
# Date & Time (Local) Stage (Feet) Flow (cfs) Trend Observed Status
# ---------------------------------------------------------------------------------
04/18/2026 07 AM PDT 57.54 42 Normal
04/18/2026 08 AM PDT 57.54 42 0 Normal
04/18/2026 09 AM PDT 57.53 42 - Normal
04/18/2026 10 AM PDT 57.52 42 - Normal
04/18/2026 11 AM PDT 57.52 42 0 Normal
04/18/2026 12 PM PDT 57.51 41 - Normal
04/18/2026 01 PM PDT 57.50 41 - Normal
04/18/2026 02 PM PDT 57.50 41 0 Normal
04/18/2026 03 PM PDT 57.49 40 - Normal
04/18/2026 04 PM PDT 57.48 40 - Normal
04/18/2026 05 PM PDT 57.47 40 - Normal
04/18/2026 06 PM PDT 57.47 40 0 Normal
04/18/2026 07 PM PDT 57.46 39 - Normal
04/18/2026 08 PM PDT 57.45 39 - Normal
04/18/2026 09 PM PDT 57.44 38 - Normal
04/18/2026 10 PM PDT 57.43 38 - Normal
04/18/2026 11 PM PDT 57.43 38 0 Normal
04/19/2026 12 AM PDT 57.42 38 - Normal
04/19/2026 01 AM PDT 57.41 37 - Normal
04/19/2026 02 AM PDT 57.41 37 0 Normal
04/19/2026 03 AM PDT 57.40 37 - Normal
04/19/2026 04 AM PDT 57.39 36 - Normal
04/19/2026 05 AM PDT 57.39 36 0 Normal
04/19/2026 06 AM PDT 57.38 36 - Normal
04/19/2026 07 AM PDT 57.38 36 0 Normal
04/19/2026 08 AM PDT 57.37 36 - Normal
04/19/2026 09 AM PDT 57.36 35 - Normal
04/19/2026 10 AM PDT 57.36 35 0 Normal
04/19/2026 11 AM PDT 57.35 35 - Normal
04/19/2026 12 PM PDT 57.35 35 0 Normal
04/19/2026 01 PM PDT 57.34 35 - Normal
04/19/2026 02 PM PDT 57.34 35 0 Normal
04/19/2026 03 PM PDT 57.33 34 - Normal
04/19/2026 04 PM PDT 57.32 34 - Normal
04/19/2026 05 PM PDT 57.31 33 - Normal
04/19/2026 06 PM PDT 57.31 33 0 Normal
04/19/2026 07 PM PDT 57.30 33 - Normal
04/19/2026 08 PM PDT 57.30 33 0 Normal
04/19/2026 09 PM PDT 57.29 33 - Normal
04/19/2026 10 PM PDT 57.28 32 - Normal
04/19/2026 11 PM PDT 57.28 32 0 Normal
04/20/2026 12 AM PDT 57.27 32 - Normal
04/20/2026 01 AM PDT 57.26 32 - Normal
04/20/2026 02 AM PDT 57.26 32 0 Normal
04/20/2026 03 AM PDT 57.25 31 - Normal
04/20/2026 04 AM PDT 57.25 31 0 Normal
04/20/2026 05 AM PDT 57.24 31 - Normal
04/20/2026 06 AM PDT 57.24 31 0 Normal
04/20/2026 07 AM PDT 57.24 31 0 Normal
04/20/2026 08 AM PDT 57.23 31 - Normal
04/20/2026 09 AM PDT 57.23 31 0 Normal
04/20/2026 10 AM PDT 57.23 31 0 Normal
04/20/2026 11 AM PDT 57.23 31 0 Normal
04/20/2026 12 PM PDT 57.23 31 0 Normal
04/20/2026 01 PM PDT 57.25 31 + Normal
04/20/2026 02 PM PDT 57.26 32 + Normal
04/20/2026 03 PM PDT 57.29 33 + Normal
04/20/2026 04 PM PDT 57.32 34 + Normal
04/20/2026 05 PM PDT 57.34 35 + Normal
04/20/2026 06 PM PDT 57.37 36 + Normal
04/20/2026 07 PM PDT 57.40 37 + Normal
04/20/2026 08 PM PDT 57.43 38 + Normal
04/20/2026 09 PM PDT 57.45 39 + Normal
04/20/2026 10 PM PDT 57.49 40 + Normal
04/20/2026 11 PM PDT 57.53 42 + Normal
04/21/2026 12 AM PDT 57.57 44 + Normal
04/21/2026 01 AM PDT 57.61 45 + Normal
04/21/2026 02 AM PDT 57.65 47 + Normal
04/21/2026 03 AM PDT 57.69 49 + Normal
04/21/2026 04 AM PDT 57.72 50 + Normal
04/21/2026 05 AM PDT 57.76 52 + Normal
04/21/2026 06 AM PDT 57.79 54 + Normal
04/21/2026 07 AM PDT 57.82 55 + Normal
04/21/2026 08 AM PDT 57.85 57 + Normal
04/21/2026 09 AM PDT 57.88 58 + Normal
04/21/2026 10 AM PDT 57.91 60 + Normal
04/21/2026 11 AM PDT 57.94 62 + Normal
04/21/2026 12 PM PDT 57.96 63 + Normal
04/21/2026 01 PM PDT 57.99 64 + Normal
04/21/2026 02 PM PDT 58.02 66 + Normal
04/21/2026 03 PM PDT 58.05 68 + Normal
04/21/2026 04 PM PDT 58.09 70 + Normal
04/21/2026 05 PM PDT 58.13 72 + Normal
04/21/2026 06 PM PDT 58.16 74 + Normal
04/21/2026 07 PM PDT 58.21 76 + Normal
04/21/2026 08 PM PDT 58.25 78 + Normal
04/21/2026 09 PM PDT 58.29 81 + Normal
04/21/2026 10 PM PDT 58.33 83 + Normal
04/21/2026 11 PM PDT 58.37 85 + Normal
04/22/2026 12 AM PDT 58.41 88 + Normal
04/22/2026 01 AM PDT 58.45 91 + Normal
04/22/2026 02 AM PDT 58.49 94 + Normal
04/22/2026 03 AM PDT 58.53 97 + Normal
04/22/2026 04 AM PDT 58.57 100 + Normal
04/22/2026 05 AM PDT 58.61 103 + Normal
04/22/2026 06 AM PDT 58.64 105 + Normal
04/22/2026 07 AM PDT 58.67 109 + Normal
04/22/2026 08 AM PDT 58.71 114 + Normal
04/22/2026 09 AM PDT 58.74 117 + Normal
04/22/2026 10 AM PDT 58.77 121 + Normal
04/22/2026 11 AM PDT 58.80 125 + Normal
04/22/2026 12 PM PDT 58.83 129 + Normal
04/22/2026 01 PM PDT 58.85 133 + Normal
04/22/2026 02 PM PDT 58.87 136 + Normal
04/22/2026 03 PM PDT 58.89 139 + Normal
04/22/2026 04 PM PDT 58.91 142 + Normal
04/22/2026 05 PM PDT 58.92 144 + Normal
04/22/2026 06 PM PDT 58.94 147 + Normal
04/22/2026 07 PM PDT 58.95 148 + Normal
04/22/2026 08 PM PDT 58.96 150 + Normal
04/22/2026 09 PM PDT 58.97 151 + Normal
04/22/2026 10 PM PDT 58.98 152 + Normal
04/22/2026 11 PM PDT 59.00 155 + Normal
04/23/2026 12 AM PDT 59.01 156 + Normal
04/23/2026 01 AM PDT 59.02 157 + Normal
04/23/2026 02 AM PDT 59.03 159 + Normal
04/23/2026 03 AM PDT 59.04 160 + Normal
04/23/2026 04 AM PDT 59.05 162 + Normal
04/23/2026 05 AM PDT 59.06 163 + Normal
04/23/2026 06 AM PDT 59.06 163 0 Normal
04/23/2026 07 AM PDT 59.06 163 0 Normal
#
# FORECAST
#
# Date & Time (Local) Stage (Feet) Flow (cfs) Trend Forecast Status
# ---------------------------------------------------------------------------------
04/23/2026 08 AM PDT 59.05 162 Normal
04/23/2026 09 AM PDT 59.05 162 0 Normal
04/23/2026 10 AM PDT 59.04 160 - Normal
04/23/2026 11 AM PDT 59.04 160 0 Normal
04/23/2026 12 PM PDT 59.04 160 0 Normal
04/23/2026 01 PM PDT 59.03 159 - Normal
04/23/2026 02 PM PDT 59.03 159 0 Normal
04/23/2026 03 PM PDT 59.02 157 - Normal
04/23/2026 04 PM PDT 59.02 157 0 Normal
04/23/2026 05 PM PDT 59.01 156 - Normal
04/23/2026 06 PM PDT 59.00 155 - Normal
04/23/2026 07 PM PDT 58.99 154 - Normal
04/23/2026 08 PM PDT 58.99 154 0 Normal
04/23/2026 09 PM PDT 58.98 152 - Normal
04/23/2026 10 PM PDT 58.98 152 0 Normal
04/23/2026 11 PM PDT 58.97 151 - Normal
04/24/2026 12 AM PDT 58.97 151 0 Normal
04/24/2026 01 AM PDT 58.97 151 0 Normal
04/24/2026 02 AM PDT 58.96 150 - Normal
04/24/2026 03 AM PDT 58.96 150 0 Normal
04/24/2026 04 AM PDT 58.96 150 0 Normal
04/24/2026 05 AM PDT 58.96 150 0 Normal
04/24/2026 06 AM PDT 58.96 150 0 Normal
04/24/2026 07 AM PDT 58.96 150 0 Normal
04/24/2026 08 AM PDT 58.97 151 + Normal
04/24/2026 09 AM PDT 58.97 151 0 Normal
04/24/2026 10 AM PDT 58.97 151 0 Normal
04/24/2026 11 AM PDT 58.97 151 0 Normal
04/24/2026 12 PM PDT 58.96 150 - Normal
04/24/2026 01 PM PDT 58.94 147 - Normal
04/24/2026 02 PM PDT 58.92 144 - Normal
04/24/2026 03 PM PDT 58.90 141 - Normal
04/24/2026 04 PM PDT 58.88 138 - Normal
04/24/2026 05 PM PDT 58.86 135 - Normal
04/24/2026 06 PM PDT 58.84 131 - Normal
04/24/2026 07 PM PDT 58.82 128 - Normal
04/24/2026 08 PM PDT 58.80 125 - Normal
04/24/2026 09 PM PDT 58.78 122 - Normal
04/24/2026 10 PM PDT 58.76 120 - Normal
04/24/2026 11 PM PDT 58.74 117 - Normal
04/25/2026 12 AM PDT 58.72 115 - Normal
04/25/2026 01 AM PDT 58.70 112 - Normal
04/25/2026 02 AM PDT 58.67 109 - Normal
04/25/2026 03 AM PDT 58.64 105 - Normal
04/25/2026 04 AM PDT 58.62 103 - Normal
04/25/2026 05 AM PDT 58.59 101 - Normal
04/25/2026 06 AM PDT 58.57 100 - Normal
04/25/2026 07 AM PDT 58.54 97 - Normal
04/25/2026 08 AM PDT 58.52 96 - Normal
04/25/2026 09 AM PDT 58.49 94 - Normal
04/25/2026 10 AM PDT 58.47 92 - Normal
04/25/2026 11 AM PDT 58.44 90 - Normal
04/25/2026 12 PM PDT 58.41 88 - Normal
04/25/2026 01 PM PDT 58.39 86 - Normal
04/25/2026 02 PM PDT 58.36 85 - Normal
04/25/2026 03 PM PDT 58.33 83 - Normal
04/25/2026 04 PM PDT 58.31 82 - Normal
04/25/2026 05 PM PDT 58.28 80 - Normal
04/25/2026 06 PM PDT 58.26 79 - Normal
04/25/2026 07 PM PDT 58.24 78 - Normal
04/25/2026 08 PM PDT 58.21 76 - Normal
04/25/2026 09 PM PDT 58.19 75 - Normal
04/25/2026 10 PM PDT 58.17 74 - Normal
04/25/2026 11 PM PDT 58.15 73 - Normal
04/26/2026 12 AM PDT 58.13 72 - Normal
04/26/2026 01 AM PDT 58.11 71 - Normal
04/26/2026 02 AM PDT 58.09 70 - Normal
04/26/2026 03 AM PDT 58.06 68 - Normal
04/26/2026 04 AM PDT 58.04 67 - Normal
04/26/2026 05 AM PDT 58.02 66 - Normal
04/26/2026 06 AM PDT 58.01 65 - Normal
04/26/2026 07 AM PDT 57.99 64 - Normal
04/26/2026 08 AM PDT 57.97 63 - Normal
04/26/2026 09 AM PDT 57.95 62 - Normal
04/26/2026 10 AM PDT 57.93 61 - Normal
04/26/2026 11 AM PDT 57.92 61 - Normal
04/26/2026 12 PM PDT 57.90 60 - Normal
04/26/2026 01 PM PDT 57.88 58 - Normal
04/26/2026 02 PM PDT 57.86 57 - Normal
04/26/2026 03 PM PDT 57.85 57 - Normal
04/26/2026 04 PM PDT 57.83 56 - Normal
04/26/2026 05 PM PDT 57.81 55 - Normal
04/26/2026 06 PM PDT 57.80 54 - Normal
04/26/2026 07 PM PDT 57.78 53 - Normal
04/26/2026 08 PM PDT 57.76 52 - Normal
04/26/2026 09 PM PDT 57.75 52 - Normal
04/26/2026 10 PM PDT 57.73 51 - Normal
04/26/2026 11 PM PDT 57.72 50 - Normal
04/27/2026 12 AM PDT 57.70 50 - Normal
04/27/2026 01 AM PDT 57.69 49 - Normal
04/27/2026 02 AM PDT 57.67 48 - Normal
04/27/2026 03 AM PDT 57.66 48 - Normal
04/27/2026 04 AM PDT 57.65 47 - Normal
04/27/2026 05 AM PDT 57.63 46 - Normal
04/27/2026 06 AM PDT 57.62 46 - Normal
04/27/2026 07 AM PDT 57.60 45 - Normal
04/27/2026 08 AM PDT 57.59 44 - Normal
04/27/2026 09 AM PDT 57.58 44 - Normal
04/27/2026 10 AM PDT 57.56 43 - Normal
04/27/2026 11 AM PDT 57.55 43 - Normal
04/27/2026 12 PM PDT 57.54 42 - Normal
04/27/2026 01 PM PDT 57.52 42 - Normal
04/27/2026 02 PM PDT 57.51 41 - Normal
04/27/2026 03 PM PDT 57.50 41 - Normal
04/27/2026 04 PM PDT 57.49 40 - Normal
04/27/2026 05 PM PDT 57.48 40 - Normal
04/27/2026 06 PM PDT 57.46 39 - Normal
04/27/2026 07 PM PDT 57.45 39 - Normal
04/27/2026 08 PM PDT 57.44 38 - Normal
04/27/2026 09 PM PDT 57.43 38 - Normal
04/27/2026 10 PM PDT 57.42 38 - Normal
04/27/2026 11 PM PDT 57.40 37 - Normal
04/28/2026 12 AM PDT 57.39 36 - Normal
04/28/2026 01 AM PDT 57.38 36 - Normal
04/28/2026 02 AM PDT 57.37 36 - Normal
04/28/2026 03 AM PDT 57.36 35 - Normal
04/28/2026 04 AM PDT 57.35 35 - Normal
04/28/2026 05 AM PDT 57.34 35 - 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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