RUSSIAN RIVER - UKIAH (UKAC1)
Latitude: 39.20º NLongitude: 123.19º WElevation: 599 FeetForecast Type: Unofficial Location
Location: Mendocino County in CaliforniaBulletin Group: Russian NapaRiver Group: Russian Napa
Issuance Time: Jul 22 2026 at 6:59 AM PDTNext Issuance: Jul 23 2026 at 9:00 AM PDT
Action/Monitor: N/A Minor Flood: N/A Moderate Flood: N/A Major Flood: N/A

# Tabular Observed and Forecast Hydrograph Information
#
# Location: Russian River - Ukiah 3NNE (UKAC1)
#
# File Generation Time:  07/22/2026 at 07:01 AM PDT
# Data Interval:  1 Hour
#
# Most Recent Date & Time of Maximum Observed:  07/22/2026 at 01:00 AM PDT
# Maximum Observed Stage:                       4.10 Feet
# Maximum Observed Flow:                        4 cfs
#
# Earliest Date & Time of Maximum Forecast:     07/22/2026 at 07:00 AM PDT
# Maximum Forecast Stage:                       4.09 Feet
# Maximum Forecast Flow:                        3 cfs
#
# OBSERVED
#
# Date & Time  (Local)    Stage (Feet)     Flow (cfs)     Trend     Observed Status
# ---------------------------------------------------------------------------------
  07/17/2026 07 AM PDT            4.08              3                Not Applicable
  07/17/2026 08 AM PDT            4.08              3         0      Not Applicable
  07/17/2026 09 AM PDT            4.08              3         0      Not Applicable
  07/17/2026 10 AM PDT            4.08              3         0      Not Applicable
  07/17/2026 11 AM PDT            4.08              3         0      Not Applicable
  07/17/2026 12 PM PDT            4.08              3         0      Not Applicable
  07/17/2026 01 PM PDT            4.08              3         0      Not Applicable
  07/17/2026 02 PM PDT            4.07              3         -      Not Applicable
  07/17/2026 03 PM PDT            4.07              3         0      Not Applicable
  07/17/2026 04 PM PDT            4.05              2         -      Not Applicable
  07/17/2026 05 PM PDT            4.05              2         0      Not Applicable
  07/17/2026 06 PM PDT            4.06              2         +      Not Applicable
  07/17/2026 07 PM PDT            4.07              3         +      Not Applicable
  07/17/2026 08 PM PDT            4.08              3         +      Not Applicable
  07/17/2026 09 PM PDT            4.09              3         +      Not Applicable
  07/17/2026 10 PM PDT            4.09              3         0      Not Applicable
  07/17/2026 11 PM PDT            4.09              3         0      Not Applicable
  07/18/2026 12 AM PDT            4.08              3         -      Not Applicable
  07/18/2026 01 AM PDT            4.08              3         0      Not Applicable
  07/18/2026 02 AM PDT            4.08              3         0      Not Applicable
  07/18/2026 03 AM PDT            4.09              3         +      Not Applicable
  07/18/2026 04 AM PDT            4.08              3         -      Not Applicable
  07/18/2026 05 AM PDT            4.08              3         0      Not Applicable
  07/18/2026 06 AM PDT            4.09              3         +      Not Applicable
  07/18/2026 07 AM PDT            4.09              3         0      Not Applicable
  07/18/2026 08 AM PDT            4.08              3         -      Not Applicable
  07/18/2026 09 AM PDT            4.09              3         +      Not Applicable
  07/18/2026 10 AM PDT            4.08              3         -      Not Applicable
  07/18/2026 11 AM PDT            4.09              3         +      Not Applicable
  07/18/2026 12 PM PDT            4.09              3         0      Not Applicable
  07/18/2026 01 PM PDT            4.08              3         -      Not Applicable
  07/18/2026 02 PM PDT            4.08              3         0      Not Applicable
  07/18/2026 03 PM PDT            4.08              3         0      Not Applicable
  07/18/2026 04 PM PDT            4.08              3         0      Not Applicable
  07/18/2026 05 PM PDT            4.08              3         0      Not Applicable
  07/18/2026 06 PM PDT            4.09              3         +      Not Applicable
  07/18/2026 07 PM PDT            4.09              3         0      Not Applicable
  07/18/2026 08 PM PDT            4.09              3         0      Not Applicable
  07/18/2026 09 PM PDT            4.09              3         0      Not Applicable
  07/18/2026 10 PM PDT            4.09              3         0      Not Applicable
  07/18/2026 11 PM PDT            4.09              3         0      Not Applicable
  07/19/2026 12 AM PDT            4.09              3         0      Not Applicable
  07/19/2026 01 AM PDT            4.09              3         0      Not Applicable
  07/19/2026 02 AM PDT            4.09              3         0      Not Applicable
  07/19/2026 03 AM PDT            4.09              3         0      Not Applicable
  07/19/2026 04 AM PDT            4.09              3         0      Not Applicable
  07/19/2026 05 AM PDT            4.09              3         0      Not Applicable
  07/19/2026 06 AM PDT            4.09              3         0      Not Applicable
  07/19/2026 07 AM PDT            4.09              3         0      Not Applicable
  07/19/2026 08 AM PDT            4.09              3         0      Not Applicable
  07/19/2026 09 AM PDT            4.09              3         0      Not Applicable
  07/19/2026 10 AM PDT            4.09              3         0      Not Applicable
  07/19/2026 11 AM PDT            4.09              3         0      Not Applicable
  07/19/2026 12 PM PDT            4.09              3         0      Not Applicable
  07/19/2026 01 PM PDT            4.09              3         0      Not Applicable
  07/19/2026 02 PM PDT            4.09              3         0      Not Applicable
  07/19/2026 03 PM PDT            4.09              3         0      Not Applicable
  07/19/2026 04 PM PDT            4.09              3         0      Not Applicable
  07/19/2026 05 PM PDT            4.09              3         0      Not Applicable
  07/19/2026 06 PM PDT            4.09              3         0      Not Applicable
  07/19/2026 07 PM PDT            4.09              3         0      Not Applicable
  07/19/2026 08 PM PDT            4.09              3         0      Not Applicable
  07/19/2026 09 PM PDT            4.09              3         0      Not Applicable
  07/19/2026 10 PM PDT            4.09              3         0      Not Applicable
  07/19/2026 11 PM PDT            4.10              4         +      Not Applicable
  07/20/2026 12 AM PDT            4.09              3         -      Not Applicable
  07/20/2026 01 AM PDT            4.09              3         0      Not Applicable
  07/20/2026 02 AM PDT            4.09              3         0      Not Applicable
  07/20/2026 03 AM PDT            4.09              3         0      Not Applicable
  07/20/2026 04 AM PDT            4.09              3         0      Not Applicable
  07/20/2026 05 AM PDT            4.09              3         0      Not Applicable
  07/20/2026 06 AM PDT            4.09              3         0      Not Applicable
  07/20/2026 07 AM PDT            4.09              3         0      Not Applicable
  07/20/2026 08 AM PDT            4.09              3         0      Not Applicable
  07/20/2026 09 AM PDT            4.09              3         0      Not Applicable
  07/20/2026 10 AM PDT            4.09              3         0      Not Applicable
  07/20/2026 11 AM PDT            4.09              3         0      Not Applicable
  07/20/2026 12 PM PDT            4.09              3         0      Not Applicable
  07/20/2026 01 PM PDT            4.09              3         0      Not Applicable
  07/20/2026 02 PM PDT            4.08              3         -      Not Applicable
  07/20/2026 03 PM PDT            4.08              3         0      Not Applicable
  07/20/2026 04 PM PDT            4.08              3         0      Not Applicable
  07/20/2026 05 PM PDT            4.08              3         0      Not Applicable
  07/20/2026 06 PM PDT            4.08              3         0      Not Applicable
  07/20/2026 07 PM PDT            4.08              3         0      Not Applicable
  07/20/2026 08 PM PDT            4.09              3         +      Not Applicable
  07/20/2026 09 PM PDT            4.09              3         0      Not Applicable
  07/20/2026 10 PM PDT            4.09              3         0      Not Applicable
  07/20/2026 11 PM PDT            4.09              3         0      Not Applicable
  07/21/2026 12 AM PDT            4.09              3         0      Not Applicable
  07/21/2026 01 AM PDT            4.09              3         0      Not Applicable
  07/21/2026 02 AM PDT            4.09              3         0      Not Applicable
  07/21/2026 03 AM PDT            4.09              3         0      Not Applicable
  07/21/2026 04 AM PDT            4.09              3         0      Not Applicable
  07/21/2026 05 AM PDT            4.09              3         0      Not Applicable
  07/21/2026 06 AM PDT            4.09              3         0      Not Applicable
  07/21/2026 07 AM PDT            4.08              3         -      Not Applicable
  07/21/2026 08 AM PDT            4.09              3         +      Not Applicable
  07/21/2026 09 AM PDT            4.09              3         0      Not Applicable
  07/21/2026 10 AM PDT            4.09              3         0      Not Applicable
  07/21/2026 11 AM PDT            4.09              3         0      Not Applicable
  07/21/2026 12 PM PDT            4.09              3         0      Not Applicable
  07/21/2026 01 PM PDT            4.09              3         0      Not Applicable
  07/21/2026 02 PM PDT            4.09              3         0      Not Applicable
  07/21/2026 03 PM PDT            4.09              3         0      Not Applicable
  07/21/2026 04 PM PDT            4.09              3         0      Not Applicable
  07/21/2026 05 PM PDT            4.09              3         0      Not Applicable
  07/21/2026 06 PM PDT            4.09              3         0      Not Applicable
  07/21/2026 07 PM PDT            4.09              3         0      Not Applicable
  07/21/2026 08 PM PDT            4.09              3         0      Not Applicable
  07/21/2026 09 PM PDT            4.09              3         0      Not Applicable
  07/21/2026 10 PM PDT            4.10              4         +      Not Applicable
  07/21/2026 11 PM PDT            4.10              4         0      Not Applicable
  07/22/2026 12 AM PDT            4.10              4         0      Not Applicable
  07/22/2026 01 AM PDT            4.10              4         0      Not Applicable
  07/22/2026 02 AM PDT            4.09              3         -      Not Applicable
  07/22/2026 03 AM PDT            4.09              3         0      Not Applicable
  07/22/2026 04 AM PDT            4.09              3         0      Not Applicable
  07/22/2026 05 AM PDT            4.09              3         0      Not Applicable
  07/22/2026 06 AM PDT            4.09              3         0      Not Applicable
#
# FORECAST
#
# Date & Time  (Local)    Stage (Feet)     Flow (cfs)     Trend     Forecast Status
# ---------------------------------------------------------------------------------
  07/22/2026 07 AM PDT            4.09              3                Not Applicable
  07/22/2026 08 AM PDT            4.09              3         0      Not Applicable
  07/22/2026 09 AM PDT            4.09              3         0      Not Applicable
  07/22/2026 10 AM PDT            4.09              3         0      Not Applicable
  07/22/2026 11 AM PDT            4.09              3         0      Not Applicable
  07/22/2026 12 PM PDT            4.09              3         0      Not Applicable
  07/22/2026 01 PM PDT            4.09              3         0      Not Applicable
  07/22/2026 02 PM PDT            4.09              3         0      Not Applicable
  07/22/2026 03 PM PDT            4.09              3         0      Not Applicable
  07/22/2026 04 PM PDT            4.09              3         0      Not Applicable
  07/22/2026 05 PM PDT            4.09              3         0      Not Applicable
  07/22/2026 06 PM PDT            4.09              3         0      Not Applicable
  07/22/2026 07 PM PDT            4.09              3         0      Not Applicable
  07/22/2026 08 PM PDT            4.09              3         0      Not Applicable
  07/22/2026 09 PM PDT            4.09              3         0      Not Applicable
  07/22/2026 10 PM PDT            4.09              3         0      Not Applicable
  07/22/2026 11 PM PDT            4.09              3         0      Not Applicable
  07/23/2026 12 AM PDT            4.09              3         0      Not Applicable
  07/23/2026 01 AM PDT            4.09              3         0      Not Applicable
  07/23/2026 02 AM PDT            4.09              3         0      Not Applicable
  07/23/2026 03 AM PDT            4.09              3         0      Not Applicable
  07/23/2026 04 AM PDT            4.09              3         0      Not Applicable
  07/23/2026 05 AM PDT            4.09              3         0      Not Applicable
  07/23/2026 06 AM PDT            4.09              3         0      Not Applicable
  07/23/2026 07 AM PDT            4.09              3         0      Not Applicable
  07/23/2026 08 AM PDT            4.09              3         0      Not Applicable
  07/23/2026 09 AM PDT            4.09              3         0      Not Applicable
  07/23/2026 10 AM PDT            4.09              3         0      Not Applicable
  07/23/2026 11 AM PDT            4.09              3         0      Not Applicable
  07/23/2026 12 PM PDT            4.09              3         0      Not Applicable
  07/23/2026 01 PM PDT            4.09              3         0      Not Applicable
  07/23/2026 02 PM PDT            4.09              3         0      Not Applicable
  07/23/2026 03 PM PDT            4.09              3         0      Not Applicable
  07/23/2026 04 PM PDT            4.09              3         0      Not Applicable
  07/23/2026 05 PM PDT            4.09              3         0      Not Applicable
  07/23/2026 06 PM PDT            4.09              3         0      Not Applicable
  07/23/2026 07 PM PDT            4.09              3         0      Not Applicable
  07/23/2026 08 PM PDT            4.09              3         0      Not Applicable
  07/23/2026 09 PM PDT            4.09              3         0      Not Applicable
  07/23/2026 10 PM PDT            4.09              3         0      Not Applicable
  07/23/2026 11 PM PDT            4.09              3         0      Not Applicable
  07/24/2026 12 AM PDT            4.09              3         0      Not Applicable
  07/24/2026 01 AM PDT            4.09              3         0      Not Applicable
  07/24/2026 02 AM PDT            4.09              3         0      Not Applicable
  07/24/2026 03 AM PDT            4.09              3         0      Not Applicable
  07/24/2026 04 AM PDT            4.09              3         0      Not Applicable
  07/24/2026 05 AM PDT            4.09              3         0      Not Applicable
  07/24/2026 06 AM PDT            4.09              3         0      Not Applicable
  07/24/2026 07 AM PDT            4.09              3         0      Not Applicable
  07/24/2026 08 AM PDT            4.09              3         0      Not Applicable
  07/24/2026 09 AM PDT            4.09              3         0      Not Applicable
  07/24/2026 10 AM PDT            4.09              3         0      Not Applicable
  07/24/2026 11 AM PDT            4.09              3         0      Not Applicable
  07/24/2026 12 PM PDT            4.09              3         0      Not Applicable
  07/24/2026 01 PM PDT            4.09              3         0      Not Applicable
  07/24/2026 02 PM PDT            4.09              3         0      Not Applicable
  07/24/2026 03 PM PDT            4.09              3         0      Not Applicable
  07/24/2026 04 PM PDT            4.09              3         0      Not Applicable
  07/24/2026 05 PM PDT            4.09              3         0      Not Applicable
  07/24/2026 06 PM PDT            4.09              3         0      Not Applicable
  07/24/2026 07 PM PDT            4.09              3         0      Not Applicable
  07/24/2026 08 PM PDT            4.09              3         0      Not Applicable
  07/24/2026 09 PM PDT            4.09              3         0      Not Applicable
  07/24/2026 10 PM PDT            4.09              3         0      Not Applicable
  07/24/2026 11 PM PDT            4.09              3         0      Not Applicable
  07/25/2026 12 AM PDT            4.09              3         0      Not Applicable
  07/25/2026 01 AM PDT            4.09              3         0      Not Applicable
  07/25/2026 02 AM PDT            4.09              3         0      Not Applicable
  07/25/2026 03 AM PDT            4.09              3         0      Not Applicable
  07/25/2026 04 AM PDT            4.09              3         0      Not Applicable
  07/25/2026 05 AM PDT            4.09              3         0      Not Applicable
  07/25/2026 06 AM PDT            4.09              3         0      Not Applicable
  07/25/2026 07 AM PDT            4.09              3         0      Not Applicable
  07/25/2026 08 AM PDT            4.09              3         0      Not Applicable
  07/25/2026 09 AM PDT            4.09              3         0      Not Applicable
  07/25/2026 10 AM PDT            4.09              3         0      Not Applicable
  07/25/2026 11 AM PDT            4.09              3         0      Not Applicable
  07/25/2026 12 PM PDT            4.09              3         0      Not Applicable
  07/25/2026 01 PM PDT            4.09              3         0      Not Applicable
  07/25/2026 02 PM PDT            4.09              3         0      Not Applicable
  07/25/2026 03 PM PDT            4.09              3         0      Not Applicable
  07/25/2026 04 PM PDT            4.09              3         0      Not Applicable
  07/25/2026 05 PM PDT            4.09              3         0      Not Applicable
  07/25/2026 06 PM PDT            4.09              3         0      Not Applicable
  07/25/2026 07 PM PDT            4.09              3         0      Not Applicable
  07/25/2026 08 PM PDT            4.09              3         0      Not Applicable
  07/25/2026 09 PM PDT            4.09              3         0      Not Applicable
  07/25/2026 10 PM PDT            4.09              3         0      Not Applicable
  07/25/2026 11 PM PDT            4.09              3         0      Not Applicable
  07/26/2026 12 AM PDT            4.09              3         0      Not Applicable
  07/26/2026 01 AM PDT            4.09              3         0      Not Applicable
  07/26/2026 02 AM PDT            4.09              3         0      Not Applicable
  07/26/2026 03 AM PDT            4.09              3         0      Not Applicable
  07/26/2026 04 AM PDT            4.09              3         0      Not Applicable
  07/26/2026 05 AM PDT            4.09              3         0      Not Applicable
  07/26/2026 06 AM PDT            4.09              3         0      Not Applicable
  07/26/2026 07 AM PDT            4.09              3         0      Not Applicable
  07/26/2026 08 AM PDT            4.09              3         0      Not Applicable
  07/26/2026 09 AM PDT            4.09              3         0      Not Applicable
  07/26/2026 10 AM PDT            4.09              3         0      Not Applicable
  07/26/2026 11 AM PDT            4.09              3         0      Not Applicable
  07/26/2026 12 PM PDT            4.09              3         0      Not Applicable
  07/26/2026 01 PM PDT            4.09              3         0      Not Applicable
  07/26/2026 02 PM PDT            4.09              3         0      Not Applicable
  07/26/2026 03 PM PDT            4.09              3         0      Not Applicable
  07/26/2026 04 PM PDT            4.09              3         0      Not Applicable
  07/26/2026 05 PM PDT            4.09              3         0      Not Applicable
  07/26/2026 06 PM PDT            4.09              3         0      Not Applicable
  07/26/2026 07 PM PDT            4.09              3         0      Not Applicable
  07/26/2026 08 PM PDT            4.09              3         0      Not Applicable
  07/26/2026 09 PM PDT            4.09              3         0      Not Applicable
  07/26/2026 10 PM PDT            4.09              3         0      Not Applicable
  07/26/2026 11 PM PDT            4.09              3         0      Not Applicable
  07/27/2026 12 AM PDT            4.09              3         0      Not Applicable
  07/27/2026 01 AM PDT            4.09              3         0      Not Applicable
  07/27/2026 02 AM PDT            4.09              3         0      Not Applicable
  07/27/2026 03 AM PDT            4.09              3         0      Not Applicable
  07/27/2026 04 AM PDT            4.09              3         0      Not Applicable
  07/27/2026 05 AM PDT            4.09              3         0      Not Applicable
#
# 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.