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SANTA ROSA CREEK - SANTA ROSA (SSAC1)
| Latitude: 38.44º N | Longitude: 122.72º W | Elevation: 138 Feet | | Forecast Type: Unofficial Location |
| Location: Sonoma County in California | Bulletin Group: Russian Napa | River Group: Russian Napa |
| Issuance Time: | Mar 18 2026 at 7:14 AM PDT | Next Issuance: | Mar 18 2026 at 3:00 PM PDT
| |
| Action/Monitor: 40.0 Feet | Minor Flood: 41.0 Feet | Moderate Flood: 45.0 Feet | Major Flood: 50.0 Feet |
# Tabular Observed and Forecast Hydrograph Information
#
# Location: Santa Rosa Creek - Santa Rosa (SSAC1)
#
# File Generation Time: 03/18/2026 at 07:16 AM PDT
# Data Interval: 1 Hour
#
# Most Recent Date & Time of Maximum Observed: 03/13/2026 at 09:00 PM PDT
# Maximum Observed Stage: 24.06 Feet
# Maximum Observed Flow: 21 cfs
#
# Earliest Date & Time of Maximum Forecast: 03/18/2026 at 08:00 AM PDT
# Maximum Forecast Stage: 23.96 Feet
# Maximum Forecast Flow: 16 cfs
#
# OBSERVED
#
# Date & Time (Local) Stage (Feet) Flow (cfs) Trend Observed Status
# ---------------------------------------------------------------------------------
03/13/2026 07 AM PDT 24.05 21 Normal
03/13/2026 08 AM PDT 24.04 20 - Normal
03/13/2026 09 AM PDT 24.04 20 0 Normal
03/13/2026 10 AM PDT 24.04 20 0 Normal
03/13/2026 11 AM PDT 24.04 20 0 Normal
03/13/2026 12 PM PDT 24.04 20 0 Normal
03/13/2026 01 PM PDT 24.04 20 0 Normal
03/13/2026 02 PM PDT 24.04 20 0 Normal
03/13/2026 03 PM PDT 24.03 20 - Normal
03/13/2026 04 PM PDT 24.04 20 + Normal
03/13/2026 05 PM PDT 24.05 21 + Normal
03/13/2026 06 PM PDT 24.06 21 + Normal
03/13/2026 07 PM PDT 24.06 21 0 Normal
03/13/2026 08 PM PDT 24.06 21 0 Normal
03/13/2026 09 PM PDT 24.06 21 0 Normal
03/13/2026 10 PM PDT 24.05 21 - Normal
03/13/2026 11 PM PDT 24.05 21 0 Normal
03/14/2026 12 AM PDT 24.05 21 0 Normal
03/14/2026 01 AM PDT 24.05 21 0 Normal
03/14/2026 02 AM PDT 24.05 21 0 Normal
03/14/2026 03 AM PDT 24.05 21 0 Normal
03/14/2026 04 AM PDT 24.05 21 0 Normal
03/14/2026 05 AM PDT 24.03 20 - Normal
03/14/2026 06 AM PDT 24.03 20 0 Normal
03/14/2026 07 AM PDT 24.03 20 0 Normal
03/14/2026 08 AM PDT 24.03 20 0 Normal
03/14/2026 09 AM PDT 24.03 20 0 Normal
03/14/2026 10 AM PDT 24.03 20 0 Normal
03/14/2026 11 AM PDT 24.03 20 0 Normal
03/14/2026 12 PM PDT 24.02 19 - Normal
03/14/2026 01 PM PDT 24.02 19 0 Normal
03/14/2026 02 PM PDT 24.03 20 + Normal
03/14/2026 03 PM PDT 24.03 20 0 Normal
03/14/2026 04 PM PDT 24.03 20 0 Normal
03/14/2026 05 PM PDT 24.03 20 0 Normal
03/14/2026 06 PM PDT 24.04 20 + Normal
03/14/2026 07 PM PDT 24.04 20 0 Normal
03/14/2026 08 PM PDT 24.05 21 + Normal
03/14/2026 09 PM PDT 24.04 20 - Normal
03/14/2026 10 PM PDT 24.04 20 0 Normal
03/14/2026 11 PM PDT 24.04 20 0 Normal
03/15/2026 12 AM PDT 24.04 20 0 Normal
03/15/2026 01 AM PDT 24.04 20 0 Normal
03/15/2026 02 AM PDT 24.04 20 0 Normal
03/15/2026 03 AM PDT 24.03 20 - Normal
03/15/2026 04 AM PDT 24.03 20 0 Normal
03/15/2026 05 AM PDT 24.02 19 - Normal
03/15/2026 06 AM PDT 24.02 19 0 Normal
03/15/2026 07 AM PDT 24.02 19 0 Normal
03/15/2026 08 AM PDT 24.01 19 - Normal
03/15/2026 09 AM PDT 24.01 19 0 Normal
03/15/2026 10 AM PDT 24.01 19 0 Normal
03/15/2026 11 AM PDT 24.01 19 0 Normal
03/15/2026 12 PM PDT 24.01 19 0 Normal
03/15/2026 01 PM PDT 24.00 18 - Normal
03/15/2026 02 PM PDT 24.00 18 0 Normal
03/15/2026 03 PM PDT 24.00 18 0 Normal
03/15/2026 04 PM PDT 24.01 19 + Normal
03/15/2026 05 PM PDT 24.01 19 0 Normal
03/15/2026 06 PM PDT 24.01 19 0 Normal
03/15/2026 07 PM PDT 24.02 19 + Normal
03/15/2026 08 PM PDT 24.02 19 0 Normal
03/15/2026 09 PM PDT 24.02 19 0 Normal
03/15/2026 10 PM PDT 24.02 19 0 Normal
03/15/2026 11 PM PDT 24.02 19 0 Normal
03/16/2026 12 AM PDT 24.01 19 - Normal
03/16/2026 01 AM PDT 24.01 19 0 Normal
03/16/2026 02 AM PDT 24.01 19 0 Normal
03/16/2026 03 AM PDT 24.01 19 0 Normal
03/16/2026 04 AM PDT 24.01 19 0 Normal
03/16/2026 05 AM PDT 24.01 19 0 Normal
03/16/2026 06 AM PDT 24.01 19 0 Normal
03/16/2026 07 AM PDT 24.01 19 0 Normal
03/16/2026 08 AM PDT 24.01 19 0 Normal
03/16/2026 09 AM PDT 24.01 19 0 Normal
03/16/2026 10 AM PDT 24.01 19 0 Normal
03/16/2026 11 AM PDT 24.01 19 0 Normal
03/16/2026 12 PM PDT 24.00 18 - Normal
03/16/2026 01 PM PDT 24.00 18 0 Normal
03/16/2026 02 PM PDT 24.00 18 0 Normal
03/16/2026 03 PM PDT 24.00 18 0 Normal
03/16/2026 04 PM PDT 24.00 18 0 Normal
03/16/2026 05 PM PDT 23.99 18 - Normal
03/16/2026 06 PM PDT 24.00 18 + Normal
03/16/2026 07 PM PDT 24.00 18 0 Normal
03/16/2026 08 PM PDT 24.01 19 + Normal
03/16/2026 09 PM PDT 24.00 18 - Normal
03/16/2026 10 PM PDT 24.00 18 0 Normal
03/16/2026 11 PM PDT 24.00 18 0 Normal
03/17/2026 12 AM PDT 24.00 18 0 Normal
03/17/2026 01 AM PDT 24.00 18 0 Normal
03/17/2026 02 AM PDT 24.00 18 0 Normal
03/17/2026 03 AM PDT 23.99 18 - Normal
03/17/2026 04 AM PDT 23.99 18 0 Normal
03/17/2026 05 AM PDT 23.99 18 0 Normal
03/17/2026 06 AM PDT 23.98 17 - Normal
03/17/2026 07 AM PDT 23.98 17 0 Normal
03/17/2026 08 AM PDT 23.98 17 0 Normal
03/17/2026 09 AM PDT 23.97 17 - Normal
03/17/2026 10 AM PDT 23.97 17 0 Normal
03/17/2026 11 AM PDT 23.97 17 0 Normal
03/17/2026 12 PM PDT 23.97 17 0 Normal
03/17/2026 01 PM PDT 23.97 17 0 Normal
03/17/2026 02 PM PDT 23.96 16 - Normal
03/17/2026 03 PM PDT 23.97 17 + Normal
03/17/2026 04 PM PDT 23.97 17 0 Normal
03/17/2026 05 PM PDT 23.97 17 0 Normal
03/17/2026 06 PM PDT 23.98 17 + Normal
03/17/2026 07 PM PDT 23.99 18 + Normal
03/17/2026 08 PM PDT 23.98 17 - Normal
03/17/2026 09 PM PDT 23.98 17 0 Normal
03/17/2026 10 PM PDT 23.98 17 0 Normal
03/17/2026 11 PM PDT 23.98 17 0 Normal
03/18/2026 12 AM PDT 23.98 17 0 Normal
03/18/2026 01 AM PDT 23.98 17 0 Normal
03/18/2026 02 AM PDT 23.98 17 0 Normal
03/18/2026 03 AM PDT 23.97 17 - Normal
03/18/2026 04 AM PDT 23.98 17 + Normal
03/18/2026 05 AM PDT 23.97 17 - Normal
03/18/2026 06 AM PDT 23.96 16 - Normal
03/18/2026 07 AM PDT 23.96 16 0 Normal
#
# FORECAST
#
# Date & Time (Local) Stage (Feet) Flow (cfs) Trend Forecast Status
# ---------------------------------------------------------------------------------
03/18/2026 08 AM PDT 23.96 16 Normal
03/18/2026 09 AM PDT 23.96 16 0 Normal
03/18/2026 10 AM PDT 23.96 16 0 Normal
03/18/2026 11 AM PDT 23.96 16 0 Normal
03/18/2026 12 PM PDT 23.96 16 0 Normal
03/18/2026 01 PM PDT 23.96 16 0 Normal
03/18/2026 02 PM PDT 23.96 16 0 Normal
03/18/2026 03 PM PDT 23.96 16 0 Normal
03/18/2026 04 PM PDT 23.95 16 - Normal
03/18/2026 05 PM PDT 23.95 16 0 Normal
03/18/2026 06 PM PDT 23.95 16 0 Normal
03/18/2026 07 PM PDT 23.95 16 0 Normal
03/18/2026 08 PM PDT 23.95 16 0 Normal
03/18/2026 09 PM PDT 23.95 16 0 Normal
03/18/2026 10 PM PDT 23.95 16 0 Normal
03/18/2026 11 PM PDT 23.95 16 0 Normal
03/19/2026 12 AM PDT 23.95 16 0 Normal
03/19/2026 01 AM PDT 23.95 16 0 Normal
03/19/2026 02 AM PDT 23.95 16 0 Normal
03/19/2026 03 AM PDT 23.95 16 0 Normal
03/19/2026 04 AM PDT 23.95 16 0 Normal
03/19/2026 05 AM PDT 23.95 16 0 Normal
03/19/2026 06 AM PDT 23.95 16 0 Normal
03/19/2026 07 AM PDT 23.95 16 0 Normal
03/19/2026 08 AM PDT 23.95 16 0 Normal
03/19/2026 09 AM PDT 23.95 16 0 Normal
03/19/2026 10 AM PDT 23.95 16 0 Normal
03/19/2026 11 AM PDT 23.95 16 0 Normal
03/19/2026 12 PM PDT 23.95 16 0 Normal
03/19/2026 01 PM PDT 23.95 16 0 Normal
03/19/2026 02 PM PDT 23.95 16 0 Normal
03/19/2026 03 PM PDT 23.94 15 - Normal
03/19/2026 04 PM PDT 23.94 15 0 Normal
03/19/2026 05 PM PDT 23.94 15 0 Normal
03/19/2026 06 PM PDT 23.94 15 0 Normal
03/19/2026 07 PM PDT 23.94 15 0 Normal
03/19/2026 08 PM PDT 23.94 15 0 Normal
03/19/2026 09 PM PDT 23.94 15 0 Normal
03/19/2026 10 PM PDT 23.94 15 0 Normal
03/19/2026 11 PM PDT 23.94 15 0 Normal
03/20/2026 12 AM PDT 23.94 15 0 Normal
03/20/2026 01 AM PDT 23.94 15 0 Normal
03/20/2026 02 AM PDT 23.94 15 0 Normal
03/20/2026 03 AM PDT 23.94 15 0 Normal
03/20/2026 04 AM PDT 23.94 15 0 Normal
03/20/2026 05 AM PDT 23.94 15 0 Normal
03/20/2026 06 AM PDT 23.94 15 0 Normal
03/20/2026 07 AM PDT 23.94 15 0 Normal
03/20/2026 08 AM PDT 23.94 15 0 Normal
03/20/2026 09 AM PDT 23.94 15 0 Normal
03/20/2026 10 AM PDT 23.93 15 - Normal
03/20/2026 11 AM PDT 23.93 15 0 Normal
03/20/2026 12 PM PDT 23.93 15 0 Normal
03/20/2026 01 PM PDT 23.93 15 0 Normal
03/20/2026 02 PM PDT 23.93 15 0 Normal
03/20/2026 03 PM PDT 23.93 15 0 Normal
03/20/2026 04 PM PDT 23.93 15 0 Normal
03/20/2026 05 PM PDT 23.93 15 0 Normal
03/20/2026 06 PM PDT 23.93 15 0 Normal
03/20/2026 07 PM PDT 23.93 15 0 Normal
03/20/2026 08 PM PDT 23.93 15 0 Normal
03/20/2026 09 PM PDT 23.93 15 0 Normal
03/20/2026 10 PM PDT 23.93 15 0 Normal
03/20/2026 11 PM PDT 23.93 15 0 Normal
03/21/2026 12 AM PDT 23.93 15 0 Normal
03/21/2026 01 AM PDT 23.93 15 0 Normal
03/21/2026 02 AM PDT 23.93 15 0 Normal
03/21/2026 03 AM PDT 23.93 15 0 Normal
03/21/2026 04 AM PDT 23.93 15 0 Normal
03/21/2026 05 AM PDT 23.93 15 0 Normal
03/21/2026 06 AM PDT 23.93 15 0 Normal
03/21/2026 07 AM PDT 23.93 15 0 Normal
03/21/2026 08 AM PDT 23.93 15 0 Normal
03/21/2026 09 AM PDT 23.92 14 - Normal
03/21/2026 10 AM PDT 23.92 14 0 Normal
03/21/2026 11 AM PDT 23.92 14 0 Normal
03/21/2026 12 PM PDT 23.92 14 0 Normal
03/21/2026 01 PM PDT 23.92 14 0 Normal
03/21/2026 02 PM PDT 23.92 14 0 Normal
03/21/2026 03 PM PDT 23.92 14 0 Normal
03/21/2026 04 PM PDT 23.92 14 0 Normal
03/21/2026 05 PM PDT 23.92 14 0 Normal
03/21/2026 06 PM PDT 23.92 14 0 Normal
03/21/2026 07 PM PDT 23.92 14 0 Normal
03/21/2026 08 PM PDT 23.92 14 0 Normal
03/21/2026 09 PM PDT 23.92 14 0 Normal
03/21/2026 10 PM PDT 23.92 14 0 Normal
03/21/2026 11 PM PDT 23.92 14 0 Normal
03/22/2026 12 AM PDT 23.92 14 0 Normal
03/22/2026 01 AM PDT 23.92 14 0 Normal
03/22/2026 02 AM PDT 23.92 14 0 Normal
03/22/2026 03 AM PDT 23.92 14 0 Normal
03/22/2026 04 AM PDT 23.91 14 - Normal
03/22/2026 05 AM PDT 23.91 14 0 Normal
03/22/2026 06 AM PDT 23.91 14 0 Normal
03/22/2026 07 AM PDT 23.91 14 0 Normal
03/22/2026 08 AM PDT 23.91 14 0 Normal
03/22/2026 09 AM PDT 23.91 14 0 Normal
03/22/2026 10 AM PDT 23.91 14 0 Normal
03/22/2026 11 AM PDT 23.91 14 0 Normal
03/22/2026 12 PM PDT 23.91 14 0 Normal
03/22/2026 01 PM PDT 23.91 14 0 Normal
03/22/2026 02 PM PDT 23.91 14 0 Normal
03/22/2026 03 PM PDT 23.91 14 0 Normal
03/22/2026 04 PM PDT 23.91 14 0 Normal
03/22/2026 05 PM PDT 23.91 14 0 Normal
03/22/2026 06 PM PDT 23.91 14 0 Normal
03/22/2026 07 PM PDT 23.91 14 0 Normal
03/22/2026 08 PM PDT 23.91 14 0 Normal
03/22/2026 09 PM PDT 23.91 14 0 Normal
03/22/2026 10 PM PDT 23.91 14 0 Normal
03/22/2026 11 PM PDT 23.91 14 0 Normal
03/23/2026 12 AM PDT 23.91 14 0 Normal
03/23/2026 01 AM PDT 23.91 14 0 Normal
03/23/2026 02 AM PDT 23.90 14 - Normal
03/23/2026 03 AM PDT 23.90 14 0 Normal
03/23/2026 04 AM PDT 23.90 14 0 Normal
03/23/2026 05 AM PDT 23.90 14 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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