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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: | Jul 18 2026 at 8:18 AM PDT | Next Issuance: | Jul 19 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: 07/18/2026 at 08:19 AM PDT
# Data Interval: 1 Hour
#
# Most Recent Date & Time of Maximum Observed: 07/13/2026 at 02:00 PM PDT
# Maximum Observed Stage: 56.07 Feet
# Maximum Observed Flow: 6 cfs
#
# Earliest Date & Time of Maximum Forecast: 07/18/2026 at 09:00 AM PDT
# Maximum Forecast Stage: 55.97 Feet
# Maximum Forecast Flow: 5 cfs
#
# OBSERVED
#
# Date & Time (Local) Stage (Feet) Flow (cfs) Trend Observed Status
# ---------------------------------------------------------------------------------
07/13/2026 08 AM PDT 56.06 6 Normal
07/13/2026 09 AM PDT 56.07 6 + Normal
07/13/2026 10 AM PDT 56.07 6 0 Normal
07/13/2026 11 AM PDT 56.07 6 0 Normal
07/13/2026 12 PM PDT 56.07 6 0 Normal
07/13/2026 01 PM PDT 56.07 6 0 Normal
07/13/2026 02 PM PDT 56.07 6 0 Normal
07/13/2026 03 PM PDT 56.06 6 - Normal
07/13/2026 04 PM PDT 56.06 6 0 Normal
07/13/2026 05 PM PDT 56.06 6 0 Normal
07/13/2026 06 PM PDT 56.06 6 0 Normal
07/13/2026 07 PM PDT 56.05 6 - Normal
07/13/2026 08 PM PDT 56.05 6 0 Normal
07/13/2026 09 PM PDT 56.05 6 0 Normal
07/13/2026 10 PM PDT 56.05 6 0 Normal
07/13/2026 11 PM PDT 56.05 6 0 Normal
07/14/2026 12 AM PDT 56.05 6 0 Normal
07/14/2026 01 AM PDT 56.05 6 0 Normal
07/14/2026 02 AM PDT 56.05 6 0 Normal
07/14/2026 03 AM PDT 56.05 6 0 Normal
07/14/2026 04 AM PDT 56.05 6 0 Normal
07/14/2026 05 AM PDT 56.05 6 0 Normal
07/14/2026 06 AM PDT 56.05 6 0 Normal
07/14/2026 07 AM PDT 56.05 6 0 Normal
07/14/2026 08 AM PDT 56.05 6 0 Normal
07/14/2026 09 AM PDT 56.05 6 0 Normal
07/14/2026 10 AM PDT 56.05 6 0 Normal
07/14/2026 11 AM PDT 56.05 6 0 Normal
07/14/2026 12 PM PDT 56.05 6 0 Normal
07/14/2026 01 PM PDT 56.05 6 0 Normal
07/14/2026 02 PM PDT 56.05 6 0 Normal
07/14/2026 03 PM PDT 56.05 6 0 Normal
07/14/2026 04 PM PDT 56.04 6 - Normal
07/14/2026 05 PM PDT 56.04 6 0 Normal
07/14/2026 06 PM PDT 56.04 6 0 Normal
07/14/2026 07 PM PDT 56.04 6 0 Normal
07/14/2026 08 PM PDT 56.04 6 0 Normal
07/14/2026 09 PM PDT 56.04 6 0 Normal
07/14/2026 10 PM PDT 56.04 6 0 Normal
07/14/2026 11 PM PDT 56.04 6 0 Normal
07/15/2026 12 AM PDT 56.03 6 - Normal
07/15/2026 01 AM PDT 56.03 6 0 Normal
07/15/2026 02 AM PDT 56.03 6 0 Normal
07/15/2026 03 AM PDT 56.03 6 0 Normal
07/15/2026 04 AM PDT 56.03 6 0 Normal
07/15/2026 05 AM PDT 56.03 6 0 Normal
07/15/2026 06 AM PDT 56.03 6 0 Normal
07/15/2026 07 AM PDT 56.03 6 0 Normal
07/15/2026 08 AM PDT 56.03 6 0 Normal
07/15/2026 09 AM PDT 56.03 6 0 Normal
07/15/2026 10 AM PDT 56.03 6 0 Normal
07/15/2026 11 AM PDT 56.03 6 0 Normal
07/15/2026 12 PM PDT 56.03 6 0 Normal
07/15/2026 01 PM PDT 56.03 6 0 Normal
07/15/2026 02 PM PDT 56.03 6 0 Normal
07/15/2026 03 PM PDT 56.03 6 0 Normal
07/15/2026 04 PM PDT 56.03 6 0 Normal
07/15/2026 05 PM PDT 56.02 6 - Normal
07/15/2026 06 PM PDT 56.02 6 0 Normal
07/15/2026 07 PM PDT 56.02 6 0 Normal
07/15/2026 08 PM PDT 56.02 6 0 Normal
07/15/2026 09 PM PDT 56.02 6 0 Normal
07/15/2026 10 PM PDT 56.02 6 0 Normal
07/15/2026 11 PM PDT 56.01 6 - Normal
07/16/2026 12 AM PDT 56.01 6 0 Normal
07/16/2026 01 AM PDT 56.01 6 0 Normal
07/16/2026 02 AM PDT 56.01 6 0 Normal
07/16/2026 03 AM PDT 56.01 6 0 Normal
07/16/2026 04 AM PDT 56.01 6 0 Normal
07/16/2026 05 AM PDT 56.01 6 0 Normal
07/16/2026 06 AM PDT 56.01 6 0 Normal
07/16/2026 07 AM PDT 56.01 6 0 Normal
07/16/2026 08 AM PDT 56.01 6 0 Normal
07/16/2026 09 AM PDT 56.01 6 0 Normal
07/16/2026 10 AM PDT 56.01 6 0 Normal
07/16/2026 11 AM PDT 56.01 6 0 Normal
07/16/2026 12 PM PDT 56.01 6 0 Normal
07/16/2026 01 PM PDT 56.01 6 0 Normal
07/16/2026 02 PM PDT 56.01 6 0 Normal
07/16/2026 03 PM PDT 56.01 6 0 Normal
07/16/2026 04 PM PDT 56.00 5 - Normal
07/16/2026 05 PM PDT 56.00 5 0 Normal
07/16/2026 06 PM PDT 56.00 5 0 Normal
07/16/2026 07 PM PDT 56.00 5 0 Normal
07/16/2026 08 PM PDT 56.00 5 0 Normal
07/16/2026 09 PM PDT 56.00 5 0 Normal
07/16/2026 10 PM PDT 55.99 5 - Normal
07/16/2026 11 PM PDT 55.99 5 0 Normal
07/17/2026 12 AM PDT 55.99 5 0 Normal
07/17/2026 01 AM PDT 55.99 5 0 Normal
07/17/2026 02 AM PDT 55.99 5 0 Normal
07/17/2026 03 AM PDT 55.99 5 0 Normal
07/17/2026 04 AM PDT 55.99 5 0 Normal
07/17/2026 05 AM PDT 55.99 5 0 Normal
07/17/2026 06 AM PDT 55.99 5 0 Normal
07/17/2026 07 AM PDT 55.99 5 0 Normal
07/17/2026 08 AM PDT 55.99 5 0 Normal
07/17/2026 09 AM PDT 55.99 5 0 Normal
07/17/2026 10 AM PDT 55.99 5 0 Normal
07/17/2026 11 AM PDT 55.99 5 0 Normal
07/17/2026 12 PM PDT 55.99 5 0 Normal
07/17/2026 01 PM PDT 55.99 5 0 Normal
07/17/2026 02 PM PDT 55.99 5 0 Normal
07/17/2026 03 PM PDT 55.98 5 - Normal
07/17/2026 04 PM PDT 55.98 5 0 Normal
07/17/2026 05 PM PDT 55.98 5 0 Normal
07/17/2026 06 PM PDT 55.98 5 0 Normal
07/17/2026 07 PM PDT 55.98 5 0 Normal
07/17/2026 08 PM PDT 55.98 5 0 Normal
07/17/2026 09 PM PDT 55.98 5 0 Normal
07/17/2026 10 PM PDT 55.97 5 - Normal
07/17/2026 11 PM PDT 55.97 5 0 Normal
07/18/2026 12 AM PDT 55.97 5 0 Normal
07/18/2026 01 AM PDT 55.97 5 0 Normal
07/18/2026 02 AM PDT 55.97 5 0 Normal
07/18/2026 03 AM PDT 55.97 5 0 Normal
07/18/2026 04 AM PDT 55.97 5 0 Normal
07/18/2026 05 AM PDT 55.97 5 0 Normal
07/18/2026 06 AM PDT 55.97 5 0 Normal
07/18/2026 07 AM PDT 55.97 5 0 Normal
07/18/2026 08 AM PDT 55.97 5 0 Normal
#
# FORECAST
#
# Date & Time (Local) Stage (Feet) Flow (cfs) Trend Forecast Status
# ---------------------------------------------------------------------------------
07/18/2026 09 AM PDT 55.97 5 Normal
07/18/2026 10 AM PDT 55.97 5 0 Normal
07/18/2026 11 AM PDT 55.97 5 0 Normal
07/18/2026 12 PM PDT 55.97 5 0 Normal
07/18/2026 01 PM PDT 55.97 5 0 Normal
07/18/2026 02 PM PDT 55.97 5 0 Normal
07/18/2026 03 PM PDT 55.97 5 0 Normal
07/18/2026 04 PM PDT 55.97 5 0 Normal
07/18/2026 05 PM PDT 55.97 5 0 Normal
07/18/2026 06 PM PDT 55.97 5 0 Normal
07/18/2026 07 PM PDT 55.97 5 0 Normal
07/18/2026 08 PM PDT 55.97 5 0 Normal
07/18/2026 09 PM PDT 55.97 5 0 Normal
07/18/2026 10 PM PDT 55.97 5 0 Normal
07/18/2026 11 PM PDT 55.96 5 - Normal
07/19/2026 12 AM PDT 55.96 5 0 Normal
07/19/2026 01 AM PDT 55.96 5 0 Normal
07/19/2026 02 AM PDT 55.96 5 0 Normal
07/19/2026 03 AM PDT 55.96 5 0 Normal
07/19/2026 04 AM PDT 55.96 5 0 Normal
07/19/2026 05 AM PDT 55.96 5 0 Normal
07/19/2026 06 AM PDT 55.96 5 0 Normal
07/19/2026 07 AM PDT 55.96 5 0 Normal
07/19/2026 08 AM PDT 55.96 5 0 Normal
07/19/2026 09 AM PDT 55.96 5 0 Normal
07/19/2026 10 AM PDT 55.96 5 0 Normal
07/19/2026 11 AM PDT 55.96 5 0 Normal
07/19/2026 12 PM PDT 55.96 5 0 Normal
07/19/2026 01 PM PDT 55.96 5 0 Normal
07/19/2026 02 PM PDT 55.96 5 0 Normal
07/19/2026 03 PM PDT 55.96 5 0 Normal
07/19/2026 04 PM PDT 55.96 5 0 Normal
07/19/2026 05 PM PDT 55.96 5 0 Normal
07/19/2026 06 PM PDT 55.96 5 0 Normal
07/19/2026 07 PM PDT 55.96 5 0 Normal
07/19/2026 08 PM PDT 55.96 5 0 Normal
07/19/2026 09 PM PDT 55.96 5 0 Normal
07/19/2026 10 PM PDT 55.96 5 0 Normal
07/19/2026 11 PM PDT 55.96 5 0 Normal
07/20/2026 12 AM PDT 55.96 5 0 Normal
07/20/2026 01 AM PDT 55.96 5 0 Normal
07/20/2026 02 AM PDT 55.96 5 0 Normal
07/20/2026 03 AM PDT 55.95 5 - Normal
07/20/2026 04 AM PDT 55.95 5 0 Normal
07/20/2026 05 AM PDT 55.95 5 0 Normal
07/20/2026 06 AM PDT 55.95 5 0 Normal
07/20/2026 07 AM PDT 55.95 5 0 Normal
07/20/2026 08 AM PDT 55.95 5 0 Normal
07/20/2026 09 AM PDT 55.95 5 0 Normal
07/20/2026 10 AM PDT 55.95 5 0 Normal
07/20/2026 11 AM PDT 55.95 5 0 Normal
07/20/2026 12 PM PDT 55.95 5 0 Normal
07/20/2026 01 PM PDT 55.95 5 0 Normal
07/20/2026 02 PM PDT 55.95 5 0 Normal
07/20/2026 03 PM PDT 55.95 5 0 Normal
07/20/2026 04 PM PDT 55.95 5 0 Normal
07/20/2026 05 PM PDT 55.95 5 0 Normal
07/20/2026 06 PM PDT 55.95 5 0 Normal
07/20/2026 07 PM PDT 55.95 5 0 Normal
07/20/2026 08 PM PDT 55.95 5 0 Normal
07/20/2026 09 PM PDT 55.95 5 0 Normal
07/20/2026 10 PM PDT 55.95 5 0 Normal
07/20/2026 11 PM PDT 55.95 5 0 Normal
07/21/2026 12 AM PDT 55.95 5 0 Normal
07/21/2026 01 AM PDT 55.95 5 0 Normal
07/21/2026 02 AM PDT 55.95 5 0 Normal
07/21/2026 03 AM PDT 55.95 5 0 Normal
07/21/2026 04 AM PDT 55.95 5 0 Normal
07/21/2026 05 AM PDT 55.95 5 0 Normal
07/21/2026 06 AM PDT 55.95 5 0 Normal
07/21/2026 07 AM PDT 55.95 5 0 Normal
07/21/2026 08 AM PDT 55.95 5 0 Normal
07/21/2026 09 AM PDT 55.95 5 0 Normal
07/21/2026 10 AM PDT 55.95 5 0 Normal
07/21/2026 11 AM PDT 55.95 5 0 Normal
07/21/2026 12 PM PDT 55.95 5 0 Normal
07/21/2026 01 PM PDT 55.94 5 - Normal
07/21/2026 02 PM PDT 55.94 5 0 Normal
07/21/2026 03 PM PDT 55.94 5 0 Normal
07/21/2026 04 PM PDT 55.94 5 0 Normal
07/21/2026 05 PM PDT 55.94 5 0 Normal
07/21/2026 06 PM PDT 55.94 5 0 Normal
07/21/2026 07 PM PDT 55.94 5 0 Normal
07/21/2026 08 PM PDT 55.94 5 0 Normal
07/21/2026 09 PM PDT 55.94 5 0 Normal
07/21/2026 10 PM PDT 55.94 5 0 Normal
07/21/2026 11 PM PDT 55.94 5 0 Normal
07/22/2026 12 AM PDT 55.94 5 0 Normal
07/22/2026 01 AM PDT 55.94 5 0 Normal
07/22/2026 02 AM PDT 55.94 5 0 Normal
07/22/2026 03 AM PDT 55.94 5 0 Normal
07/22/2026 04 AM PDT 55.94 5 0 Normal
07/22/2026 05 AM PDT 55.94 5 0 Normal
07/22/2026 06 AM PDT 55.94 5 0 Normal
07/22/2026 07 AM PDT 55.94 5 0 Normal
07/22/2026 08 AM PDT 55.94 5 0 Normal
07/22/2026 09 AM PDT 55.94 5 0 Normal
07/22/2026 10 AM PDT 55.94 5 0 Normal
07/22/2026 11 AM PDT 55.94 5 0 Normal
07/22/2026 12 PM PDT 55.94 5 0 Normal
07/22/2026 01 PM PDT 55.94 5 0 Normal
07/22/2026 02 PM PDT 55.94 5 0 Normal
07/22/2026 03 PM PDT 55.94 5 0 Normal
07/22/2026 04 PM PDT 55.94 5 0 Normal
07/22/2026 05 PM PDT 55.94 5 0 Normal
07/22/2026 06 PM PDT 55.94 5 0 Normal
07/22/2026 07 PM PDT 55.94 5 0 Normal
07/22/2026 08 PM PDT 55.93 5 - Normal
07/22/2026 09 PM PDT 55.93 5 0 Normal
07/22/2026 10 PM PDT 55.93 5 0 Normal
07/22/2026 11 PM PDT 55.93 5 0 Normal
07/23/2026 12 AM PDT 55.93 5 0 Normal
07/23/2026 01 AM PDT 55.93 5 0 Normal
07/23/2026 02 AM PDT 55.93 5 0 Normal
07/23/2026 03 AM PDT 55.93 5 0 Normal
07/23/2026 04 AM PDT 55.93 5 0 Normal
07/23/2026 05 AM PDT 55.93 5 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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