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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: | May 27 2026 at 7:23 AM PDT | Next Issuance: | May 28 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: 05/27/2026 at 07:23 AM PDT
# Data Interval: 1 Hour
#
# Most Recent Date & Time of Maximum Observed: 05/22/2026 at 03:00 PM PDT
# Maximum Observed Stage: 56.47 Feet
# Maximum Observed Flow: 12 cfs
#
# Earliest Date & Time of Maximum Forecast: 05/28/2026 at 10:00 PM PDT
# Maximum Forecast Stage: 56.48 Feet
# Maximum Forecast Flow: 12 cfs
#
# OBSERVED
#
# Date & Time (Local) Stage (Feet) Flow (cfs) Trend Observed Status
# ---------------------------------------------------------------------------------
05/22/2026 07 AM PDT 56.47 12 Normal
05/22/2026 08 AM PDT 56.47 12 0 Normal
05/22/2026 09 AM PDT 56.47 12 0 Normal
05/22/2026 10 AM PDT 56.47 12 0 Normal
05/22/2026 11 AM PDT 56.47 12 0 Normal
05/22/2026 12 PM PDT 56.47 12 0 Normal
05/22/2026 01 PM PDT 56.47 12 0 Normal
05/22/2026 02 PM PDT 56.47 12 0 Normal
05/22/2026 03 PM PDT 56.47 12 0 Normal
05/22/2026 04 PM PDT 56.46 12 - Normal
05/22/2026 05 PM PDT 56.46 12 0 Normal
05/22/2026 06 PM PDT 56.46 12 0 Normal
05/22/2026 07 PM PDT 56.46 12 0 Normal
05/22/2026 08 PM PDT 56.46 12 0 Normal
05/22/2026 09 PM PDT 56.46 12 0 Normal
05/22/2026 10 PM PDT 56.46 12 0 Normal
05/22/2026 11 PM PDT 56.46 12 0 Normal
05/23/2026 12 AM PDT 56.46 12 0 Normal
05/23/2026 01 AM PDT 56.46 12 0 Normal
05/23/2026 02 AM PDT 56.46 12 0 Normal
05/23/2026 03 AM PDT 56.46 12 0 Normal
05/23/2026 04 AM PDT 56.46 12 0 Normal
05/23/2026 05 AM PDT 56.46 12 0 Normal
05/23/2026 06 AM PDT 56.46 12 0 Normal
05/23/2026 07 AM PDT 56.46 12 0 Normal
05/23/2026 08 AM PDT 56.46 12 0 Normal
05/23/2026 09 AM PDT 56.46 12 0 Normal
05/23/2026 10 AM PDT 56.46 12 0 Normal
05/23/2026 11 AM PDT 56.46 12 0 Normal
05/23/2026 12 PM PDT 56.46 12 0 Normal
05/23/2026 01 PM PDT 56.46 12 0 Normal
05/23/2026 02 PM PDT 56.46 12 0 Normal
05/23/2026 03 PM PDT 56.46 12 0 Normal
05/23/2026 04 PM PDT 56.45 12 - Normal
05/23/2026 05 PM PDT 56.46 12 + Normal
05/23/2026 06 PM PDT 56.45 12 - Normal
05/23/2026 07 PM PDT 56.45 12 0 Normal
05/23/2026 08 PM PDT 56.45 12 0 Normal
05/23/2026 09 PM PDT 56.45 12 0 Normal
05/23/2026 10 PM PDT 56.45 12 0 Normal
05/23/2026 11 PM PDT 56.45 12 0 Normal
05/24/2026 12 AM PDT 56.45 12 0 Normal
05/24/2026 01 AM PDT 56.45 12 0 Normal
05/24/2026 02 AM PDT 56.45 12 0 Normal
05/24/2026 03 AM PDT 56.45 12 0 Normal
05/24/2026 04 AM PDT 56.45 12 0 Normal
05/24/2026 05 AM PDT 56.45 12 0 Normal
05/24/2026 06 AM PDT 56.45 12 0 Normal
05/24/2026 07 AM PDT 56.45 12 0 Normal
05/24/2026 08 AM PDT 56.45 12 0 Normal
05/24/2026 09 AM PDT 56.45 12 0 Normal
05/24/2026 10 AM PDT 56.45 12 0 Normal
05/24/2026 11 AM PDT 56.45 12 0 Normal
05/24/2026 12 PM PDT 56.45 12 0 Normal
05/24/2026 01 PM PDT 56.45 12 0 Normal
05/24/2026 02 PM PDT 56.45 12 0 Normal
05/24/2026 03 PM PDT 56.45 12 0 Normal
05/24/2026 04 PM PDT 56.45 12 0 Normal
05/24/2026 05 PM PDT 56.45 12 0 Normal
05/24/2026 06 PM PDT 56.45 12 0 Normal
05/24/2026 07 PM PDT 56.45 12 0 Normal
05/24/2026 08 PM PDT 56.45 12 0 Normal
05/24/2026 09 PM PDT 56.45 12 0 Normal
05/24/2026 10 PM PDT 56.45 12 0 Normal
05/24/2026 11 PM PDT 56.45 12 0 Normal
05/25/2026 12 AM PDT 56.45 12 0 Normal
05/25/2026 01 AM PDT 56.45 12 0 Normal
05/25/2026 02 AM PDT 56.45 12 0 Normal
05/25/2026 03 AM PDT 56.45 12 0 Normal
05/25/2026 04 AM PDT 56.45 12 0 Normal
05/25/2026 05 AM PDT 56.45 12 0 Normal
05/25/2026 06 AM PDT 56.45 12 0 Normal
05/25/2026 07 AM PDT 56.45 12 0 Normal
05/25/2026 08 AM PDT 56.45 12 0 Normal
05/25/2026 09 AM PDT 56.45 12 0 Normal
05/25/2026 10 AM PDT 56.45 12 0 Normal
05/25/2026 11 AM PDT 56.45 12 0 Normal
05/25/2026 12 PM PDT 56.45 12 0 Normal
05/25/2026 01 PM PDT 56.45 12 0 Normal
05/25/2026 02 PM PDT 56.45 12 0 Normal
05/25/2026 03 PM PDT 56.45 12 0 Normal
05/25/2026 04 PM PDT 56.45 12 0 Normal
05/25/2026 05 PM PDT 56.45 12 0 Normal
05/25/2026 06 PM PDT 56.45 12 0 Normal
05/25/2026 07 PM PDT 56.45 12 0 Normal
05/25/2026 08 PM PDT 56.45 12 0 Normal
05/25/2026 09 PM PDT 56.45 12 0 Normal
05/25/2026 10 PM PDT 56.45 12 0 Normal
05/25/2026 11 PM PDT 56.45 12 0 Normal
05/26/2026 12 AM PDT 56.44 11 - Normal
05/26/2026 01 AM PDT 56.44 11 0 Normal
05/26/2026 02 AM PDT 56.44 11 0 Normal
05/26/2026 03 AM PDT 56.45 12 + Normal
05/26/2026 04 AM PDT 56.44 11 - Normal
05/26/2026 05 AM PDT 56.45 12 + Normal
05/26/2026 06 AM PDT 56.45 12 0 Normal
05/26/2026 07 AM PDT 56.45 12 0 Normal
05/26/2026 08 AM PDT 56.44 11 - Normal
05/26/2026 09 AM PDT 56.45 12 + Normal
05/26/2026 10 AM PDT 56.45 12 0 Normal
05/26/2026 11 AM PDT 56.45 12 0 Normal
05/26/2026 12 PM PDT 56.45 12 0 Normal
05/26/2026 01 PM PDT 56.45 12 0 Normal
05/26/2026 02 PM PDT 56.44 11 - Normal
05/26/2026 03 PM PDT 56.44 11 0 Normal
05/26/2026 04 PM PDT 56.44 11 0 Normal
05/26/2026 05 PM PDT 56.44 11 0 Normal
05/26/2026 06 PM PDT 56.44 11 0 Normal
05/26/2026 07 PM PDT 56.44 11 0 Normal
05/26/2026 08 PM PDT 56.44 11 0 Normal
05/26/2026 09 PM PDT 56.44 11 0 Normal
05/26/2026 10 PM PDT 56.44 11 0 Normal
05/26/2026 11 PM PDT 56.43 11 - Normal
05/27/2026 12 AM PDT 56.43 11 0 Normal
05/27/2026 01 AM PDT 56.43 11 0 Normal
05/27/2026 02 AM PDT 56.43 11 0 Normal
05/27/2026 03 AM PDT 56.43 11 0 Normal
05/27/2026 04 AM PDT 56.43 11 0 Normal
05/27/2026 05 AM PDT 56.43 11 0 Normal
05/27/2026 06 AM PDT 56.43 11 0 Normal
05/27/2026 07 AM PDT 56.43 11 0 Normal
#
# FORECAST
#
# Date & Time (Local) Stage (Feet) Flow (cfs) Trend Forecast Status
# ---------------------------------------------------------------------------------
05/27/2026 08 AM PDT 56.43 11 Normal
05/27/2026 09 AM PDT 56.42 11 - Normal
05/27/2026 10 AM PDT 56.42 11 0 Normal
05/27/2026 11 AM PDT 56.42 11 0 Normal
05/27/2026 12 PM PDT 56.42 11 0 Normal
05/27/2026 01 PM PDT 56.42 11 0 Normal
05/27/2026 02 PM PDT 56.42 11 0 Normal
05/27/2026 03 PM PDT 56.42 11 0 Normal
05/27/2026 04 PM PDT 56.42 11 0 Normal
05/27/2026 05 PM PDT 56.42 11 0 Normal
05/27/2026 06 PM PDT 56.41 11 - Normal
05/27/2026 07 PM PDT 56.41 11 0 Normal
05/27/2026 08 PM PDT 56.41 11 0 Normal
05/27/2026 09 PM PDT 56.41 11 0 Normal
05/27/2026 10 PM PDT 56.41 11 0 Normal
05/27/2026 11 PM PDT 56.41 11 0 Normal
05/28/2026 12 AM PDT 56.40 11 - Normal
05/28/2026 01 AM PDT 56.40 11 0 Normal
05/28/2026 02 AM PDT 56.40 11 0 Normal
05/28/2026 03 AM PDT 56.40 11 0 Normal
05/28/2026 04 AM PDT 56.40 11 0 Normal
05/28/2026 05 AM PDT 56.40 11 0 Normal
05/28/2026 06 AM PDT 56.40 11 0 Normal
05/28/2026 07 AM PDT 56.39 11 - Normal
05/28/2026 08 AM PDT 56.39 11 0 Normal
05/28/2026 09 AM PDT 56.39 11 0 Normal
05/28/2026 10 AM PDT 56.39 11 0 Normal
05/28/2026 11 AM PDT 56.39 11 0 Normal
05/28/2026 12 PM PDT 56.39 11 0 Normal
05/28/2026 01 PM PDT 56.39 11 0 Normal
05/28/2026 02 PM PDT 56.40 11 + Normal
05/28/2026 03 PM PDT 56.40 11 0 Normal
05/28/2026 04 PM PDT 56.41 11 + Normal
05/28/2026 05 PM PDT 56.42 11 + Normal
05/28/2026 06 PM PDT 56.44 11 + Normal
05/28/2026 07 PM PDT 56.45 12 + Normal
05/28/2026 08 PM PDT 56.46 12 + Normal
05/28/2026 09 PM PDT 56.47 12 + Normal
05/28/2026 10 PM PDT 56.48 12 + Normal
05/28/2026 11 PM PDT 56.48 12 0 Normal
05/29/2026 12 AM PDT 56.48 12 0 Normal
05/29/2026 01 AM PDT 56.47 12 - Normal
05/29/2026 02 AM PDT 56.47 12 0 Normal
05/29/2026 03 AM PDT 56.47 12 0 Normal
05/29/2026 04 AM PDT 56.46 12 - Normal
05/29/2026 05 AM PDT 56.46 12 0 Normal
05/29/2026 06 AM PDT 56.45 12 - Normal
05/29/2026 07 AM PDT 56.45 12 0 Normal
05/29/2026 08 AM PDT 56.45 12 0 Normal
05/29/2026 09 AM PDT 56.45 12 0 Normal
05/29/2026 10 AM PDT 56.45 12 0 Normal
05/29/2026 11 AM PDT 56.44 11 - Normal
05/29/2026 12 PM PDT 56.44 11 0 Normal
05/29/2026 01 PM PDT 56.44 11 0 Normal
05/29/2026 02 PM PDT 56.44 11 0 Normal
05/29/2026 03 PM PDT 56.43 11 - Normal
05/29/2026 04 PM PDT 56.43 11 0 Normal
05/29/2026 05 PM PDT 56.42 11 - Normal
05/29/2026 06 PM PDT 56.42 11 0 Normal
05/29/2026 07 PM PDT 56.41 11 - Normal
05/29/2026 08 PM PDT 56.41 11 0 Normal
05/29/2026 09 PM PDT 56.41 11 0 Normal
05/29/2026 10 PM PDT 56.40 11 - Normal
05/29/2026 11 PM PDT 56.40 11 0 Normal
05/30/2026 12 AM PDT 56.39 11 - Normal
05/30/2026 01 AM PDT 56.39 11 0 Normal
05/30/2026 02 AM PDT 56.38 10 - Normal
05/30/2026 03 AM PDT 56.38 10 0 Normal
05/30/2026 04 AM PDT 56.38 10 0 Normal
05/30/2026 05 AM PDT 56.37 10 - Normal
05/30/2026 06 AM PDT 56.37 10 0 Normal
05/30/2026 07 AM PDT 56.36 10 - Normal
05/30/2026 08 AM PDT 56.36 10 0 Normal
05/30/2026 09 AM PDT 56.35 10 - Normal
05/30/2026 10 AM PDT 56.35 10 0 Normal
05/30/2026 11 AM PDT 56.34 10 - Normal
05/30/2026 12 PM PDT 56.34 10 0 Normal
05/30/2026 01 PM PDT 56.33 10 - Normal
05/30/2026 02 PM PDT 56.33 10 0 Normal
05/30/2026 03 PM PDT 56.33 10 0 Normal
05/30/2026 04 PM PDT 56.32 9 - Normal
05/30/2026 05 PM PDT 56.32 9 0 Normal
05/30/2026 06 PM PDT 56.31 9 - Normal
05/30/2026 07 PM PDT 56.31 9 0 Normal
05/30/2026 08 PM PDT 56.31 9 0 Normal
05/30/2026 09 PM PDT 56.30 9 - Normal
05/30/2026 10 PM PDT 56.30 9 0 Normal
05/30/2026 11 PM PDT 56.30 9 0 Normal
05/31/2026 12 AM PDT 56.29 9 - Normal
05/31/2026 01 AM PDT 56.29 9 0 Normal
05/31/2026 02 AM PDT 56.28 9 - Normal
05/31/2026 03 AM PDT 56.28 9 0 Normal
05/31/2026 04 AM PDT 56.28 9 0 Normal
05/31/2026 05 AM PDT 56.28 9 0 Normal
05/31/2026 06 AM PDT 56.27 9 - Normal
05/31/2026 07 AM PDT 56.27 9 0 Normal
05/31/2026 08 AM PDT 56.27 9 0 Normal
05/31/2026 09 AM PDT 56.27 9 0 Normal
05/31/2026 10 AM PDT 56.26 9 - Normal
05/31/2026 11 AM PDT 56.26 9 0 Normal
05/31/2026 12 PM PDT 56.26 9 0 Normal
05/31/2026 01 PM PDT 56.26 9 0 Normal
05/31/2026 02 PM PDT 56.25 9 - Normal
05/31/2026 03 PM PDT 56.25 9 0 Normal
05/31/2026 04 PM PDT 56.25 9 0 Normal
05/31/2026 05 PM PDT 56.24 8 - Normal
05/31/2026 06 PM PDT 56.24 8 0 Normal
05/31/2026 07 PM PDT 56.24 8 0 Normal
05/31/2026 08 PM PDT 56.23 8 - Normal
05/31/2026 09 PM PDT 56.23 8 0 Normal
05/31/2026 10 PM PDT 56.23 8 0 Normal
05/31/2026 11 PM PDT 56.23 8 0 Normal
06/01/2026 12 AM PDT 56.22 8 - Normal
06/01/2026 01 AM PDT 56.22 8 0 Normal
06/01/2026 02 AM PDT 56.22 8 0 Normal
06/01/2026 03 AM PDT 56.21 8 - Normal
06/01/2026 04 AM PDT 56.21 8 0 Normal
06/01/2026 05 AM PDT 56.21 8 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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