BIG SULPHUR CREEK - CLOVERDALE (BSCC1)
Latitude: 38.83º NLongitude: 123.00º WElevation: 345 FeetForecast Type: Unofficial Location
Location: Sonoma County in CaliforniaBulletin Group: Russian NapaRiver Group: Russian Napa
Issuance Time: Apr 06 2026 at 1:08 PM PDTNext Issuance: Apr 07 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: Big Sulphur Creek - Cloverdale (BSCC1)
#
# File Generation Time:  04/06/2026 at 01:09 PM PDT
# Data Interval:  1 Hour
#
# Most Recent Date & Time of Maximum Observed:  04/02/2026 at 11:00 AM PDT
# Maximum Observed Stage:                       16.00 Feet
# Maximum Observed Flow:                        73 cfs
#
# Earliest Date & Time of Maximum Forecast:     04/10/2026 at 08:00 PM PDT
# Maximum Forecast Stage:                       15.87 Feet
# Maximum Forecast Flow:                        58 cfs
#
# OBSERVED
#
# Date & Time  (Local)    Stage (Feet)     Flow (cfs)     Trend     Observed Status
# ---------------------------------------------------------------------------------
  04/01/2026 01 PM PDT           15.93             64                Not Applicable
  04/01/2026 02 PM PDT           15.93             64         0      Not Applicable
  04/01/2026 03 PM PDT           15.92             63         -      Not Applicable
  04/01/2026 04 PM PDT           15.93             64         +      Not Applicable
  04/01/2026 05 PM PDT           15.92             63         -      Not Applicable
  04/01/2026 06 PM PDT           15.93             64         +      Not Applicable
  04/01/2026 07 PM PDT           15.92             63         -      Not Applicable
  04/01/2026 08 PM PDT           15.93             64         +      Not Applicable
  04/01/2026 09 PM PDT           15.93             64         0      Not Applicable
  04/01/2026 10 PM PDT           15.94             65         +      Not Applicable
  04/01/2026 11 PM PDT           15.94             65         0      Not Applicable
  04/02/2026 12 AM PDT           15.94             65         0      Not Applicable
  04/02/2026 01 AM PDT           15.95             67         +      Not Applicable
  04/02/2026 02 AM PDT           15.94             65         -      Not Applicable
  04/02/2026 03 AM PDT           15.95             67         +      Not Applicable
  04/02/2026 04 AM PDT           15.96             68         +      Not Applicable
  04/02/2026 05 AM PDT           15.97             69         +      Not Applicable
  04/02/2026 06 AM PDT           15.97             69         0      Not Applicable
  04/02/2026 07 AM PDT           15.97             69         0      Not Applicable
  04/02/2026 08 AM PDT           15.98             70         +      Not Applicable
  04/02/2026 09 AM PDT           15.99             71         +      Not Applicable
  04/02/2026 10 AM PDT           16.00             73         +      Not Applicable
  04/02/2026 11 AM PDT           16.00             73         0      Not Applicable
  04/02/2026 12 PM PDT           15.99             71         -      Not Applicable
  04/02/2026 01 PM PDT           15.99             71         0      Not Applicable
  04/02/2026 02 PM PDT           15.98             70         -      Not Applicable
  04/02/2026 03 PM PDT           15.98             70         0      Not Applicable
  04/02/2026 04 PM PDT           15.98             70         0      Not Applicable
  04/02/2026 05 PM PDT           15.96             68         -      Not Applicable
  04/02/2026 06 PM PDT           15.95             67         -      Not Applicable
  04/02/2026 07 PM PDT           15.94             65         -      Not Applicable
  04/02/2026 08 PM PDT           15.93             64         -      Not Applicable
  04/02/2026 09 PM PDT           15.92             63         -      Not Applicable
  04/02/2026 10 PM PDT           15.91             62         -      Not Applicable
  04/02/2026 11 PM PDT           15.91             62         0      Not Applicable
  04/03/2026 12 AM PDT           15.90             61         -      Not Applicable
  04/03/2026 01 AM PDT           15.90             61         0      Not Applicable
  04/03/2026 02 AM PDT           15.89             60         -      Not Applicable
  04/03/2026 03 AM PDT           15.88             59         -      Not Applicable
  04/03/2026 04 AM PDT           15.88             59         0      Not Applicable
  04/03/2026 05 AM PDT           15.88             59         0      Not Applicable
  04/03/2026 06 AM PDT           15.88             59         0      Not Applicable
  04/03/2026 07 AM PDT           15.87             58         -      Not Applicable
  04/03/2026 08 AM PDT           15.87             58         0      Not Applicable
  04/03/2026 09 AM PDT           15.87             58         0      Not Applicable
  04/03/2026 10 AM PDT           15.87             58         0      Not Applicable
  04/03/2026 11 AM PDT           15.87             58         0      Not Applicable
  04/03/2026 12 PM PDT           15.87             58         0      Not Applicable
  04/03/2026 01 PM PDT           15.86             56         -      Not Applicable
  04/03/2026 02 PM PDT           15.86             56         0      Not Applicable
  04/03/2026 03 PM PDT           15.87             58         +      Not Applicable
  04/03/2026 04 PM PDT           15.86             56         -      Not Applicable
  04/03/2026 05 PM PDT           15.86             56         0      Not Applicable
  04/03/2026 06 PM PDT           15.85             55         -      Not Applicable
  04/03/2026 07 PM PDT           15.85             55         0      Not Applicable
  04/03/2026 08 PM PDT           15.84             54         -      Not Applicable
  04/03/2026 09 PM PDT           15.84             54         0      Not Applicable
  04/03/2026 10 PM PDT           15.84             54         0      Not Applicable
  04/03/2026 11 PM PDT           15.83             53         -      Not Applicable
  04/04/2026 12 AM PDT           15.83             53         0      Not Applicable
  04/04/2026 01 AM PDT           15.82             52         -      Not Applicable
  04/04/2026 02 AM PDT           15.83             53         +      Not Applicable
  04/04/2026 03 AM PDT           15.82             52         -      Not Applicable
  04/04/2026 04 AM PDT           15.82             52         0      Not Applicable
  04/04/2026 05 AM PDT           15.82             52         0      Not Applicable
  04/04/2026 06 AM PDT           15.82             52         0      Not Applicable
  04/04/2026 07 AM PDT           15.82             52         0      Not Applicable
  04/04/2026 08 AM PDT           15.82             52         0      Not Applicable
  04/04/2026 09 AM PDT           15.82             52         0      Not Applicable
  04/04/2026 10 AM PDT           15.83             53         +      Not Applicable
  04/04/2026 11 AM PDT           15.83             53         0      Not Applicable
  04/04/2026 12 PM PDT           15.83             53         0      Not Applicable
  04/04/2026 01 PM PDT           15.82             52         -      Not Applicable
  04/04/2026 02 PM PDT           15.83             53         +      Not Applicable
  04/04/2026 03 PM PDT           15.82             52         -      Not Applicable
  04/04/2026 04 PM PDT           15.82             52         0      Not Applicable
  04/04/2026 05 PM PDT           15.82             52         0      Not Applicable
  04/04/2026 06 PM PDT           15.82             52         0      Not Applicable
  04/04/2026 07 PM PDT           15.81             51         -      Not Applicable
  04/04/2026 08 PM PDT           15.81             51         0      Not Applicable
  04/04/2026 09 PM PDT           15.81             51         0      Not Applicable
  04/04/2026 10 PM PDT           15.80             50         -      Not Applicable
  04/04/2026 11 PM PDT           15.80             50         0      Not Applicable
  04/05/2026 12 AM PDT           15.80             50         0      Not Applicable
  04/05/2026 01 AM PDT           15.80             50         0      Not Applicable
  04/05/2026 02 AM PDT           15.79             49         -      Not Applicable
  04/05/2026 03 AM PDT           15.80             50         +      Not Applicable
  04/05/2026 04 AM PDT           15.80             50         0      Not Applicable
  04/05/2026 05 AM PDT           15.80             50         0      Not Applicable
  04/05/2026 06 AM PDT           15.80             50         0      Not Applicable
  04/05/2026 07 AM PDT           15.79             49         -      Not Applicable
  04/05/2026 08 AM PDT           15.80             50         +      Not Applicable
  04/05/2026 09 AM PDT           15.80             50         0      Not Applicable
  04/05/2026 10 AM PDT           15.80             50         0      Not Applicable
  04/05/2026 11 AM PDT           15.80             50         0      Not Applicable
  04/05/2026 12 PM PDT           15.80             50         0      Not Applicable
  04/05/2026 01 PM PDT           15.80             50         0      Not Applicable
  04/05/2026 02 PM PDT           15.80             50         0      Not Applicable
  04/05/2026 03 PM PDT           15.80             50         0      Not Applicable
  04/05/2026 04 PM PDT           15.80             50         0      Not Applicable
  04/05/2026 05 PM PDT           15.80             50         0      Not Applicable
  04/05/2026 06 PM PDT           15.80             50         0      Not Applicable
  04/05/2026 07 PM PDT           15.79             49         -      Not Applicable
  04/05/2026 08 PM PDT           15.79             49         0      Not Applicable
  04/05/2026 09 PM PDT           15.79             49         0      Not Applicable
  04/05/2026 10 PM PDT           15.78             48         -      Not Applicable
  04/05/2026 11 PM PDT           15.78             48         0      Not Applicable
  04/06/2026 12 AM PDT           15.78             48         0      Not Applicable
  04/06/2026 01 AM PDT           15.78             48         0      Not Applicable
  04/06/2026 02 AM PDT           15.77             47         -      Not Applicable
  04/06/2026 03 AM PDT           15.78             48         +      Not Applicable
  04/06/2026 04 AM PDT           15.78             48         0      Not Applicable
  04/06/2026 05 AM PDT           15.78             48         0      Not Applicable
  04/06/2026 06 AM PDT           15.77             47         -      Not Applicable
  04/06/2026 07 AM PDT           15.78             48         +      Not Applicable
  04/06/2026 08 AM PDT           15.78             48         0      Not Applicable
  04/06/2026 09 AM PDT           15.78             48         0      Not Applicable
  04/06/2026 10 AM PDT           15.78             48         0      Not Applicable
  04/06/2026 11 AM PDT           15.78             48         0      Not Applicable
  04/06/2026 12 PM PDT           15.78             48         0      Not Applicable
  04/06/2026 01 PM PDT           15.78             48         0      Not Applicable
#
# FORECAST
#
# Date & Time  (Local)    Stage (Feet)     Flow (cfs)     Trend     Forecast Status
# ---------------------------------------------------------------------------------
  04/06/2026 02 PM PDT           15.78             48                Not Applicable
  04/06/2026 03 PM PDT           15.78             48         0      Not Applicable
  04/06/2026 04 PM PDT           15.78             48         0      Not Applicable
  04/06/2026 05 PM PDT           15.78             48         0      Not Applicable
  04/06/2026 06 PM PDT           15.78             48         0      Not Applicable
  04/06/2026 07 PM PDT           15.78             48         0      Not Applicable
  04/06/2026 08 PM PDT           15.78             48         0      Not Applicable
  04/06/2026 09 PM PDT           15.78             48         0      Not Applicable
  04/06/2026 10 PM PDT           15.78             48         0      Not Applicable
  04/06/2026 11 PM PDT           15.78             48         0      Not Applicable
  04/07/2026 12 AM PDT           15.78             48         0      Not Applicable
  04/07/2026 01 AM PDT           15.78             48         0      Not Applicable
  04/07/2026 02 AM PDT           15.78             48         0      Not Applicable
  04/07/2026 03 AM PDT           15.78             48         0      Not Applicable
  04/07/2026 04 AM PDT           15.78             48         0      Not Applicable
  04/07/2026 05 AM PDT           15.78             48         0      Not Applicable
  04/07/2026 06 AM PDT           15.78             48         0      Not Applicable
  04/07/2026 07 AM PDT           15.78             48         0      Not Applicable
  04/07/2026 08 AM PDT           15.78             48         0      Not Applicable
  04/07/2026 09 AM PDT           15.78             48         0      Not Applicable
  04/07/2026 10 AM PDT           15.78             48         0      Not Applicable
  04/07/2026 11 AM PDT           15.78             48         0      Not Applicable
  04/07/2026 12 PM PDT           15.78             48         0      Not Applicable
  04/07/2026 01 PM PDT           15.78             48         0      Not Applicable
  04/07/2026 02 PM PDT           15.78             48         0      Not Applicable
  04/07/2026 03 PM PDT           15.78             48         0      Not Applicable
  04/07/2026 04 PM PDT           15.78             48         0      Not Applicable
  04/07/2026 05 PM PDT           15.78             48         0      Not Applicable
  04/07/2026 06 PM PDT           15.78             48         0      Not Applicable
  04/07/2026 07 PM PDT           15.78             48         0      Not Applicable
  04/07/2026 08 PM PDT           15.78             48         0      Not Applicable
  04/07/2026 09 PM PDT           15.78             48         0      Not Applicable
  04/07/2026 10 PM PDT           15.78             48         0      Not Applicable
  04/07/2026 11 PM PDT           15.78             48         0      Not Applicable
  04/08/2026 12 AM PDT           15.78             48         0      Not Applicable
  04/08/2026 01 AM PDT           15.78             48         0      Not Applicable
  04/08/2026 02 AM PDT           15.78             48         0      Not Applicable
  04/08/2026 03 AM PDT           15.78             48         0      Not Applicable
  04/08/2026 04 AM PDT           15.78             48         0      Not Applicable
  04/08/2026 05 AM PDT           15.78             48         0      Not Applicable
  04/08/2026 06 AM PDT           15.78             48         0      Not Applicable
  04/08/2026 07 AM PDT           15.78             48         0      Not Applicable
  04/08/2026 08 AM PDT           15.78             48         0      Not Applicable
  04/08/2026 09 AM PDT           15.78             48         0      Not Applicable
  04/08/2026 10 AM PDT           15.78             48         0      Not Applicable
  04/08/2026 11 AM PDT           15.78             48         0      Not Applicable
  04/08/2026 12 PM PDT           15.78             48         0      Not Applicable
  04/08/2026 01 PM PDT           15.78             48         0      Not Applicable
  04/08/2026 02 PM PDT           15.78             48         0      Not Applicable
  04/08/2026 03 PM PDT           15.78             48         0      Not Applicable
  04/08/2026 04 PM PDT           15.78             48         0      Not Applicable
  04/08/2026 05 PM PDT           15.78             48         0      Not Applicable
  04/08/2026 06 PM PDT           15.77             47         -      Not Applicable
  04/08/2026 07 PM PDT           15.77             47         0      Not Applicable
  04/08/2026 08 PM PDT           15.77             47         0      Not Applicable
  04/08/2026 09 PM PDT           15.77             47         0      Not Applicable
  04/08/2026 10 PM PDT           15.77             47         0      Not Applicable
  04/08/2026 11 PM PDT           15.77             47         0      Not Applicable
  04/09/2026 12 AM PDT           15.77             47         0      Not Applicable
  04/09/2026 01 AM PDT           15.77             47         0      Not Applicable
  04/09/2026 02 AM PDT           15.77             47         0      Not Applicable
  04/09/2026 03 AM PDT           15.77             47         0      Not Applicable
  04/09/2026 04 AM PDT           15.77             47         0      Not Applicable
  04/09/2026 05 AM PDT           15.77             47         0      Not Applicable
  04/09/2026 06 AM PDT           15.77             47         0      Not Applicable
  04/09/2026 07 AM PDT           15.77             47         0      Not Applicable
  04/09/2026 08 AM PDT           15.77             47         0      Not Applicable
  04/09/2026 09 AM PDT           15.77             47         0      Not Applicable
  04/09/2026 10 AM PDT           15.78             48         +      Not Applicable
  04/09/2026 11 AM PDT           15.78             48         0      Not Applicable
  04/09/2026 12 PM PDT           15.78             48         0      Not Applicable
  04/09/2026 01 PM PDT           15.78             48         0      Not Applicable
  04/09/2026 02 PM PDT           15.78             48         0      Not Applicable
  04/09/2026 03 PM PDT           15.78             48         0      Not Applicable
  04/09/2026 04 PM PDT           15.79             49         +      Not Applicable
  04/09/2026 05 PM PDT           15.80             50         +      Not Applicable
  04/09/2026 06 PM PDT           15.81             51         +      Not Applicable
  04/09/2026 07 PM PDT           15.81             51         0      Not Applicable
  04/09/2026 08 PM PDT           15.81             51         0      Not Applicable
  04/09/2026 09 PM PDT           15.82             52         +      Not Applicable
  04/09/2026 10 PM PDT           15.82             52         0      Not Applicable
  04/09/2026 11 PM PDT           15.82             52         0      Not Applicable
  04/10/2026 12 AM PDT           15.82             52         0      Not Applicable
  04/10/2026 01 AM PDT           15.82             52         0      Not Applicable
  04/10/2026 02 AM PDT           15.82             52         0      Not Applicable
  04/10/2026 03 AM PDT           15.82             52         0      Not Applicable
  04/10/2026 04 AM PDT           15.81             51         -      Not Applicable
  04/10/2026 05 AM PDT           15.79             49         -      Not Applicable
  04/10/2026 06 AM PDT           15.78             48         -      Not Applicable
  04/10/2026 07 AM PDT           15.78             48         0      Not Applicable
  04/10/2026 08 AM PDT           15.78             48         0      Not Applicable
  04/10/2026 09 AM PDT           15.78             48         0      Not Applicable
  04/10/2026 10 AM PDT           15.78             48         0      Not Applicable
  04/10/2026 11 AM PDT           15.79             49         +      Not Applicable
  04/10/2026 12 PM PDT           15.79             49         0      Not Applicable
  04/10/2026 01 PM PDT           15.79             49         0      Not Applicable
  04/10/2026 02 PM PDT           15.80             50         +      Not Applicable
  04/10/2026 03 PM PDT           15.81             51         +      Not Applicable
  04/10/2026 04 PM PDT           15.82             52         +      Not Applicable
  04/10/2026 05 PM PDT           15.85             55         +      Not Applicable
  04/10/2026 06 PM PDT           15.86             56         +      Not Applicable
  04/10/2026 07 PM PDT           15.86             56         0      Not Applicable
  04/10/2026 08 PM PDT           15.87             58         +      Not Applicable
  04/10/2026 09 PM PDT           15.86             56         -      Not Applicable
  04/10/2026 10 PM PDT           15.85             55         -      Not Applicable
  04/10/2026 11 PM PDT           15.83             53         -      Not Applicable
  04/11/2026 12 AM PDT           15.81             51         -      Not Applicable
  04/11/2026 01 AM PDT           15.80             50         -      Not Applicable
  04/11/2026 02 AM PDT           15.80             50         0      Not Applicable
  04/11/2026 03 AM PDT           15.79             49         -      Not Applicable
  04/11/2026 04 AM PDT           15.79             49         0      Not Applicable
  04/11/2026 05 AM PDT           15.78             48         -      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.