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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 09 2026 at 12:58 PM PDT | Next Issuance: | Apr 10 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: 04/09/2026 at 01:00 PM PDT
# Data Interval: 1 Hour
#
# Most Recent Date & Time of Maximum Observed: 04/04/2026 at 06:00 PM PDT
# Maximum Observed Stage: 56.74 Feet
# Maximum Observed Flow: 17 cfs
#
# Earliest Date & Time of Maximum Forecast: 04/12/2026 at 05:00 PM PDT
# Maximum Forecast Stage: 58.81 Feet
# Maximum Forecast Flow: 126 cfs
#
# OBSERVED
#
# Date & Time (Local) Stage (Feet) Flow (cfs) Trend Observed Status
# ---------------------------------------------------------------------------------
04/04/2026 01 PM PDT 56.74 17 Normal
04/04/2026 02 PM PDT 56.74 17 0 Normal
04/04/2026 03 PM PDT 56.74 17 0 Normal
04/04/2026 04 PM PDT 56.74 17 0 Normal
04/04/2026 05 PM PDT 56.73 17 - Normal
04/04/2026 06 PM PDT 56.74 17 + Normal
04/04/2026 07 PM PDT 56.73 17 - Normal
04/04/2026 08 PM PDT 56.73 17 0 Normal
04/04/2026 09 PM PDT 56.73 17 0 Normal
04/04/2026 10 PM PDT 56.73 17 0 Normal
04/04/2026 11 PM PDT 56.73 17 0 Normal
04/05/2026 12 AM PDT 56.72 17 - Normal
04/05/2026 01 AM PDT 56.72 17 0 Normal
04/05/2026 02 AM PDT 56.72 17 0 Normal
04/05/2026 03 AM PDT 56.72 17 0 Normal
04/05/2026 04 AM PDT 56.72 17 0 Normal
04/05/2026 05 AM PDT 56.72 17 0 Normal
04/05/2026 06 AM PDT 56.72 17 0 Normal
04/05/2026 07 AM PDT 56.71 17 - Normal
04/05/2026 08 AM PDT 56.71 17 0 Normal
04/05/2026 09 AM PDT 56.71 17 0 Normal
04/05/2026 10 AM PDT 56.71 17 0 Normal
04/05/2026 11 AM PDT 56.71 17 0 Normal
04/05/2026 12 PM PDT 56.71 17 0 Normal
04/05/2026 01 PM PDT 56.71 17 0 Normal
04/05/2026 02 PM PDT 56.71 17 0 Normal
04/05/2026 03 PM PDT 56.70 17 - Normal
04/05/2026 04 PM PDT 56.70 17 0 Normal
04/05/2026 05 PM PDT 56.70 17 0 Normal
04/05/2026 06 PM PDT 56.70 17 0 Normal
04/05/2026 07 PM PDT 56.70 17 0 Normal
04/05/2026 08 PM PDT 56.70 17 0 Normal
04/05/2026 09 PM PDT 56.69 16 - Normal
04/05/2026 10 PM PDT 56.69 16 0 Normal
04/05/2026 11 PM PDT 56.69 16 0 Normal
04/06/2026 12 AM PDT 56.69 16 0 Normal
04/06/2026 01 AM PDT 56.68 16 - Normal
04/06/2026 02 AM PDT 56.68 16 0 Normal
04/06/2026 03 AM PDT 56.68 16 0 Normal
04/06/2026 04 AM PDT 56.68 16 0 Normal
04/06/2026 05 AM PDT 56.68 16 0 Normal
04/06/2026 06 AM PDT 56.68 16 0 Normal
04/06/2026 07 AM PDT 56.68 16 0 Normal
04/06/2026 08 AM PDT 56.68 16 0 Normal
04/06/2026 09 AM PDT 56.67 16 - Normal
04/06/2026 10 AM PDT 56.67 16 0 Normal
04/06/2026 11 AM PDT 56.67 16 0 Normal
04/06/2026 12 PM PDT 56.67 16 0 Normal
04/06/2026 01 PM PDT 56.67 16 0 Normal
04/06/2026 02 PM PDT 56.67 16 0 Normal
04/06/2026 03 PM PDT 56.67 16 0 Normal
04/06/2026 04 PM PDT 56.66 16 - Normal
04/06/2026 05 PM PDT 56.67 16 + Normal
04/06/2026 06 PM PDT 56.66 16 - Normal
04/06/2026 07 PM PDT 56.66 16 0 Normal
04/06/2026 08 PM PDT 56.66 16 0 Normal
04/06/2026 09 PM PDT 56.66 16 0 Normal
04/06/2026 10 PM PDT 56.65 16 - Normal
04/06/2026 11 PM PDT 56.65 16 0 Normal
04/07/2026 12 AM PDT 56.65 16 0 Normal
04/07/2026 01 AM PDT 56.65 16 0 Normal
04/07/2026 02 AM PDT 56.65 16 0 Normal
04/07/2026 03 AM PDT 56.65 16 0 Normal
04/07/2026 04 AM PDT 56.64 15 - Normal
04/07/2026 05 AM PDT 56.65 16 + Normal
04/07/2026 06 AM PDT 56.64 15 - Normal
04/07/2026 07 AM PDT 56.64 15 0 Normal
04/07/2026 08 AM PDT 56.64 15 0 Normal
04/07/2026 09 AM PDT 56.64 15 0 Normal
04/07/2026 10 AM PDT 56.64 15 0 Normal
04/07/2026 11 AM PDT 56.64 15 0 Normal
04/07/2026 12 PM PDT 56.64 15 0 Normal
04/07/2026 01 PM PDT 56.64 15 0 Normal
04/07/2026 02 PM PDT 56.64 15 0 Normal
04/07/2026 03 PM PDT 56.64 15 0 Normal
04/07/2026 04 PM PDT 56.64 15 0 Normal
04/07/2026 05 PM PDT 56.63 15 - Normal
04/07/2026 06 PM PDT 56.63 15 0 Normal
04/07/2026 07 PM PDT 56.63 15 0 Normal
04/07/2026 08 PM PDT 56.63 15 0 Normal
04/07/2026 09 PM PDT 56.63 15 0 Normal
04/07/2026 10 PM PDT 56.62 15 - Normal
04/07/2026 11 PM PDT 56.62 15 0 Normal
04/08/2026 12 AM PDT 56.62 15 0 Normal
04/08/2026 01 AM PDT 56.62 15 0 Normal
04/08/2026 02 AM PDT 56.62 15 0 Normal
04/08/2026 03 AM PDT 56.62 15 0 Normal
04/08/2026 04 AM PDT 56.62 15 0 Normal
04/08/2026 05 AM PDT 56.62 15 0 Normal
04/08/2026 06 AM PDT 56.61 15 - Normal
04/08/2026 07 AM PDT 56.61 15 0 Normal
04/08/2026 08 AM PDT 56.61 15 0 Normal
04/08/2026 09 AM PDT 56.61 15 0 Normal
04/08/2026 10 AM PDT 56.61 15 0 Normal
04/08/2026 11 AM PDT 56.61 15 0 Normal
04/08/2026 12 PM PDT 56.61 15 0 Normal
04/08/2026 01 PM PDT 56.61 15 0 Normal
04/08/2026 02 PM PDT 56.61 15 0 Normal
04/08/2026 03 PM PDT 56.61 15 0 Normal
04/08/2026 04 PM PDT 56.61 15 0 Normal
04/08/2026 05 PM PDT 56.61 15 0 Normal
04/08/2026 06 PM PDT 56.60 15 - Normal
04/08/2026 07 PM PDT 56.60 15 0 Normal
04/08/2026 08 PM PDT 56.60 15 0 Normal
04/08/2026 09 PM PDT 56.60 15 0 Normal
04/08/2026 10 PM PDT 56.60 15 0 Normal
04/08/2026 11 PM PDT 56.60 15 0 Normal
04/09/2026 12 AM PDT 56.60 15 0 Normal
04/09/2026 01 AM PDT 56.59 14 - Normal
04/09/2026 02 AM PDT 56.59 14 0 Normal
04/09/2026 03 AM PDT 56.59 14 0 Normal
04/09/2026 04 AM PDT 56.59 14 0 Normal
04/09/2026 05 AM PDT 56.59 14 0 Normal
04/09/2026 06 AM PDT 56.59 14 0 Normal
04/09/2026 07 AM PDT 56.59 14 0 Normal
04/09/2026 08 AM PDT 56.59 14 0 Normal
04/09/2026 09 AM PDT 56.59 14 0 Normal
04/09/2026 10 AM PDT 56.59 14 0 Normal
04/09/2026 11 AM PDT 56.59 14 0 Normal
04/09/2026 12 PM PDT 56.59 14 0 Normal
#
# FORECAST
#
# Date & Time (Local) Stage (Feet) Flow (cfs) Trend Forecast Status
# ---------------------------------------------------------------------------------
04/09/2026 01 PM PDT 56.59 14 Normal
04/09/2026 02 PM PDT 56.58 14 - Normal
04/09/2026 03 PM PDT 56.58 14 0 Normal
04/09/2026 04 PM PDT 56.58 14 0 Normal
04/09/2026 05 PM PDT 56.58 14 0 Normal
04/09/2026 06 PM PDT 56.58 14 0 Normal
04/09/2026 07 PM PDT 56.58 14 0 Normal
04/09/2026 08 PM PDT 56.58 14 0 Normal
04/09/2026 09 PM PDT 56.57 14 - Normal
04/09/2026 10 PM PDT 56.57 14 0 Normal
04/09/2026 11 PM PDT 56.57 14 0 Normal
04/10/2026 12 AM PDT 56.57 14 0 Normal
04/10/2026 01 AM PDT 56.57 14 0 Normal
04/10/2026 02 AM PDT 56.57 14 0 Normal
04/10/2026 03 AM PDT 56.58 14 + Normal
04/10/2026 04 AM PDT 56.58 14 0 Normal
04/10/2026 05 AM PDT 56.59 14 + Normal
04/10/2026 06 AM PDT 56.60 15 + Normal
04/10/2026 07 AM PDT 56.61 15 + Normal
04/10/2026 08 AM PDT 56.62 15 + Normal
04/10/2026 09 AM PDT 56.62 15 0 Normal
04/10/2026 10 AM PDT 56.63 15 + Normal
04/10/2026 11 AM PDT 56.63 15 0 Normal
04/10/2026 12 PM PDT 56.64 15 + Normal
04/10/2026 01 PM PDT 56.65 16 + Normal
04/10/2026 02 PM PDT 56.66 16 + Normal
04/10/2026 03 PM PDT 56.68 16 + Normal
04/10/2026 04 PM PDT 56.72 17 + Normal
04/10/2026 05 PM PDT 56.77 18 + Normal
04/10/2026 06 PM PDT 56.84 20 + Normal
04/10/2026 07 PM PDT 56.90 21 + Normal
04/10/2026 08 PM PDT 56.96 23 + Normal
04/10/2026 09 PM PDT 57.03 25 + Normal
04/10/2026 10 PM PDT 57.09 27 + Normal
04/10/2026 11 PM PDT 57.17 29 + Normal
04/11/2026 12 AM PDT 57.25 31 + Normal
04/11/2026 01 AM PDT 57.33 34 + Normal
04/11/2026 02 AM PDT 57.40 37 + Normal
04/11/2026 03 AM PDT 57.48 40 + Normal
04/11/2026 04 AM PDT 57.56 43 + Normal
04/11/2026 05 AM PDT 57.65 47 + Normal
04/11/2026 06 AM PDT 57.73 51 + Normal
04/11/2026 07 AM PDT 57.81 55 + Normal
04/11/2026 08 AM PDT 57.88 58 + Normal
04/11/2026 09 AM PDT 57.94 62 + Normal
04/11/2026 10 AM PDT 57.99 64 + Normal
04/11/2026 11 AM PDT 58.04 67 + Normal
04/11/2026 12 PM PDT 58.07 69 + Normal
04/11/2026 01 PM PDT 58.10 70 + Normal
04/11/2026 02 PM PDT 58.12 71 + Normal
04/11/2026 03 PM PDT 58.14 72 + Normal
04/11/2026 04 PM PDT 58.14 72 0 Normal
04/11/2026 05 PM PDT 58.14 72 0 Normal
04/11/2026 06 PM PDT 58.14 72 0 Normal
04/11/2026 07 PM PDT 58.13 72 - Normal
04/11/2026 08 PM PDT 58.12 71 - Normal
04/11/2026 09 PM PDT 58.11 71 - Normal
04/11/2026 10 PM PDT 58.11 71 0 Normal
04/11/2026 11 PM PDT 58.11 71 0 Normal
04/12/2026 12 AM PDT 58.12 71 + Normal
04/12/2026 01 AM PDT 58.13 72 + Normal
04/12/2026 02 AM PDT 58.14 72 + Normal
04/12/2026 03 AM PDT 58.17 74 + Normal
04/12/2026 04 AM PDT 58.21 76 + Normal
04/12/2026 05 AM PDT 58.27 80 + Normal
04/12/2026 06 AM PDT 58.34 84 + Normal
04/12/2026 07 AM PDT 58.40 87 + Normal
04/12/2026 08 AM PDT 58.47 92 + Normal
04/12/2026 09 AM PDT 58.53 97 + Normal
04/12/2026 10 AM PDT 58.58 100 + Normal
04/12/2026 11 AM PDT 58.63 104 + Normal
04/12/2026 12 PM PDT 58.68 110 + Normal
04/12/2026 01 PM PDT 58.72 115 + Normal
04/12/2026 02 PM PDT 58.75 118 + Normal
04/12/2026 03 PM PDT 58.78 122 + Normal
04/12/2026 04 PM PDT 58.80 125 + Normal
04/12/2026 05 PM PDT 58.81 126 + Normal
04/12/2026 06 PM PDT 58.81 126 0 Normal
04/12/2026 07 PM PDT 58.81 126 0 Normal
04/12/2026 08 PM PDT 58.81 126 0 Normal
04/12/2026 09 PM PDT 58.81 126 0 Normal
04/12/2026 10 PM PDT 58.80 125 - Normal
04/12/2026 11 PM PDT 58.80 125 0 Normal
04/13/2026 12 AM PDT 58.79 123 - Normal
04/13/2026 01 AM PDT 58.79 123 0 Normal
04/13/2026 02 AM PDT 58.78 122 - Normal
04/13/2026 03 AM PDT 58.78 122 0 Normal
04/13/2026 04 AM PDT 58.78 122 0 Normal
04/13/2026 05 AM PDT 58.78 122 0 Normal
04/13/2026 06 AM PDT 58.79 123 + Normal
04/13/2026 07 AM PDT 58.79 123 0 Normal
04/13/2026 08 AM PDT 58.79 123 0 Normal
04/13/2026 09 AM PDT 58.79 123 0 Normal
04/13/2026 10 AM PDT 58.77 121 - Normal
04/13/2026 11 AM PDT 58.74 117 - Normal
04/13/2026 12 PM PDT 58.71 114 - Normal
04/13/2026 01 PM PDT 58.67 109 - Normal
04/13/2026 02 PM PDT 58.63 104 - Normal
04/13/2026 03 PM PDT 58.59 101 - Normal
04/13/2026 04 PM PDT 58.55 98 - Normal
04/13/2026 05 PM PDT 58.50 94 - Normal
04/13/2026 06 PM PDT 58.46 91 - Normal
04/13/2026 07 PM PDT 58.42 88 - Normal
04/13/2026 08 PM PDT 58.38 86 - Normal
04/13/2026 09 PM PDT 58.34 84 - Normal
04/13/2026 10 PM PDT 58.29 81 - Normal
04/13/2026 11 PM PDT 58.25 78 - Normal
04/14/2026 12 AM PDT 58.21 76 - Normal
04/14/2026 01 AM PDT 58.17 74 - Normal
04/14/2026 02 AM PDT 58.13 72 - Normal
04/14/2026 03 AM PDT 58.09 70 - Normal
04/14/2026 04 AM PDT 58.05 68 - Normal
04/14/2026 05 AM PDT 58.01 65 - 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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