National Weather Service California-Nevada River Forecast Center Department of Commerce National Oceanic and Atmospheric Administration National Weather Service

 | 

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: Aug 29 2026 at 7:43 AM PDTNext Issuance: Aug 30 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:  08/29/2026 at 07:43 AM PDT
# Data Interval:  1 Hour
#
# Most Recent Date & Time of Maximum Observed:  08/24/2026 at 10:00 PM PDT
# Maximum Observed Stage:                       15.07 Feet
# Maximum Observed Flow:                        3 cfs
#
# Earliest Date & Time of Maximum Forecast:     08/29/2026 at 08:00 AM PDT
# Maximum Forecast Stage:                       14.99 Feet
# Maximum Forecast Flow:                        2 cfs
#
# OBSERVED
#
# Date & Time  (Local)    Stage (Feet)     Flow (cfs)     Trend     Observed Status
# ---------------------------------------------------------------------------------
  08/24/2026 07 AM PDT           15.05              2                Not Applicable
  08/24/2026 08 AM PDT           15.05              2         0      Not Applicable
  08/24/2026 09 AM PDT           15.05              2         0      Not Applicable
  08/24/2026 10 AM PDT           15.06              3         +      Not Applicable
  08/24/2026 11 AM PDT           15.06              3         0      Not Applicable
  08/24/2026 12 PM PDT           15.06              3         0      Not Applicable
  08/24/2026 01 PM PDT           15.07              3         +      Not Applicable
  08/24/2026 02 PM PDT           15.07              3         0      Not Applicable
  08/24/2026 03 PM PDT           15.07              3         0      Not Applicable
  08/24/2026 04 PM PDT           15.07              3         0      Not Applicable
  08/24/2026 05 PM PDT           15.07              3         0      Not Applicable
  08/24/2026 06 PM PDT           15.07              3         0      Not Applicable
  08/24/2026 07 PM PDT           15.07              3         0      Not Applicable
  08/24/2026 08 PM PDT           15.07              3         0      Not Applicable
  08/24/2026 09 PM PDT           15.07              3         0      Not Applicable
  08/24/2026 10 PM PDT           15.07              3         0      Not Applicable
  08/24/2026 11 PM PDT           15.06              3         -      Not Applicable
  08/25/2026 12 AM PDT           15.06              3         0      Not Applicable
  08/25/2026 01 AM PDT           15.06              3         0      Not Applicable
  08/25/2026 02 AM PDT           15.05              2         -      Not Applicable
  08/25/2026 03 AM PDT           15.05              2         0      Not Applicable
  08/25/2026 04 AM PDT           15.05              2         0      Not Applicable
  08/25/2026 05 AM PDT           15.04              2         -      Not Applicable
  08/25/2026 06 AM PDT           15.04              2         0      Not Applicable
  08/25/2026 07 AM PDT           15.04              2         0      Not Applicable
  08/25/2026 08 AM PDT           15.05              2         +      Not Applicable
  08/25/2026 09 AM PDT           15.05              2         0      Not Applicable
  08/25/2026 10 AM PDT           15.05              2         0      Not Applicable
  08/25/2026 11 AM PDT           15.06              3         +      Not Applicable
  08/25/2026 12 PM PDT           15.06              3         0      Not Applicable
  08/25/2026 01 PM PDT           15.06              3         0      Not Applicable
  08/25/2026 02 PM PDT           15.06              3         0      Not Applicable
  08/25/2026 03 PM PDT           15.06              3         0      Not Applicable
  08/25/2026 04 PM PDT           15.06              3         0      Not Applicable
  08/25/2026 05 PM PDT           15.06              3         0      Not Applicable
  08/25/2026 06 PM PDT           15.05              2         -      Not Applicable
  08/25/2026 07 PM PDT           15.05              2         0      Not Applicable
  08/25/2026 08 PM PDT           15.05              2         0      Not Applicable
  08/25/2026 09 PM PDT           15.04              2         -      Not Applicable
  08/25/2026 10 PM PDT           15.04              2         0      Not Applicable
  08/25/2026 11 PM PDT           15.03              2         -      Not Applicable
  08/26/2026 12 AM PDT           15.03              2         0      Not Applicable
  08/26/2026 01 AM PDT           15.02              2         -      Not Applicable
  08/26/2026 02 AM PDT           15.02              2         0      Not Applicable
  08/26/2026 03 AM PDT           15.02              2         0      Not Applicable
  08/26/2026 04 AM PDT           15.01              2         -      Not Applicable
  08/26/2026 05 AM PDT           15.01              2         0      Not Applicable
  08/26/2026 06 AM PDT           15.01              2         0      Not Applicable
  08/26/2026 07 AM PDT           15.01              2         0      Not Applicable
  08/26/2026 08 AM PDT           15.01              2         0      Not Applicable
  08/26/2026 09 AM PDT           15.01              2         0      Not Applicable
  08/26/2026 10 AM PDT           15.02              2         +      Not Applicable
  08/26/2026 11 AM PDT           15.02              2         0      Not Applicable
  08/26/2026 12 PM PDT           15.02              2         0      Not Applicable
  08/26/2026 01 PM PDT           15.02              2         0      Not Applicable
  08/26/2026 02 PM PDT           15.02              2         0      Not Applicable
  08/26/2026 03 PM PDT           15.02              2         0      Not Applicable
  08/26/2026 04 PM PDT           15.02              2         0      Not Applicable
  08/26/2026 05 PM PDT           15.01              2         -      Not Applicable
  08/26/2026 06 PM PDT           15.01              2         0      Not Applicable
  08/26/2026 07 PM PDT           15.02              2         +      Not Applicable
  08/26/2026 08 PM PDT           15.02              2         0      Not Applicable
  08/26/2026 09 PM PDT           15.01              2         -      Not Applicable
  08/26/2026 10 PM PDT           15.01              2         0      Not Applicable
  08/26/2026 11 PM PDT           15.01              2         0      Not Applicable
  08/27/2026 12 AM PDT           15.01              2         0      Not Applicable
  08/27/2026 01 AM PDT           15.00              2         -      Not Applicable
  08/27/2026 02 AM PDT           15.00              2         0      Not Applicable
  08/27/2026 03 AM PDT           15.00              2         0      Not Applicable
  08/27/2026 04 AM PDT           15.00              2         0      Not Applicable
  08/27/2026 05 AM PDT           15.00              2         0      Not Applicable
  08/27/2026 06 AM PDT           15.00              2         0      Not Applicable
  08/27/2026 07 AM PDT           15.00              2         0      Not Applicable
  08/27/2026 08 AM PDT           15.00              2         0      Not Applicable
  08/27/2026 09 AM PDT           15.00              2         0      Not Applicable
  08/27/2026 10 AM PDT           15.00              2         0      Not Applicable
  08/27/2026 11 AM PDT           15.00              2         0      Not Applicable
  08/27/2026 12 PM PDT           15.00              2         0      Not Applicable
  08/27/2026 01 PM PDT           15.00              2         0      Not Applicable
  08/27/2026 02 PM PDT           15.00              2         0      Not Applicable
  08/27/2026 03 PM PDT           15.00              2         0      Not Applicable
  08/27/2026 04 PM PDT           15.00              2         0      Not Applicable
  08/27/2026 05 PM PDT           15.00              2         0      Not Applicable
  08/27/2026 06 PM PDT           14.99              2         -      Not Applicable
  08/27/2026 07 PM PDT           14.99              2         0      Not Applicable
  08/27/2026 08 PM PDT           15.00              2         +      Not Applicable
  08/27/2026 09 PM PDT           14.99              2         -      Not Applicable
  08/27/2026 10 PM PDT           14.99              2         0      Not Applicable
  08/27/2026 11 PM PDT           14.99              2         0      Not Applicable
  08/28/2026 12 AM PDT           14.99              2         0      Not Applicable
  08/28/2026 01 AM PDT           14.99              2         0      Not Applicable
  08/28/2026 02 AM PDT           14.98              2         -      Not Applicable
  08/28/2026 03 AM PDT           14.98              2         0      Not Applicable
  08/28/2026 04 AM PDT           14.98              2         0      Not Applicable
  08/28/2026 05 AM PDT           14.98              2         0      Not Applicable
  08/28/2026 06 AM PDT           14.98              2         0      Not Applicable
  08/28/2026 07 AM PDT           14.98              2         0      Not Applicable
  08/28/2026 08 AM PDT           14.98              2         0      Not Applicable
  08/28/2026 09 AM PDT           14.98              2         0      Not Applicable
  08/28/2026 10 AM PDT           14.99              2         +      Not Applicable
  08/28/2026 11 AM PDT           14.99              2         0      Not Applicable
  08/28/2026 12 PM PDT           14.99              2         0      Not Applicable
  08/28/2026 01 PM PDT           14.99              2         0      Not Applicable
  08/28/2026 02 PM PDT           14.99              2         0      Not Applicable
  08/28/2026 03 PM PDT           14.99              2         0      Not Applicable
  08/28/2026 04 PM PDT           14.99              2         0      Not Applicable
  08/28/2026 05 PM PDT           14.99              2         0      Not Applicable
  08/28/2026 06 PM PDT           14.99              2         0      Not Applicable
  08/28/2026 07 PM PDT           14.99              2         0      Not Applicable
  08/28/2026 08 PM PDT           14.99              2         0      Not Applicable
  08/28/2026 09 PM PDT           15.00              2         +      Not Applicable
  08/28/2026 10 PM PDT           14.99              2         -      Not Applicable
  08/28/2026 11 PM PDT           14.99              2         0      Not Applicable
  08/29/2026 12 AM PDT           14.99              2         0      Not Applicable
  08/29/2026 01 AM PDT           14.99              2         0      Not Applicable
  08/29/2026 02 AM PDT           14.99              2         0      Not Applicable
  08/29/2026 03 AM PDT           14.99              2         0      Not Applicable
  08/29/2026 04 AM PDT           14.99              2         0      Not Applicable
  08/29/2026 05 AM PDT           14.99              2         0      Not Applicable
  08/29/2026 06 AM PDT           14.99              2         0      Not Applicable
  08/29/2026 07 AM PDT           14.99              2         0      Not Applicable
#
# FORECAST
#
# Date & Time  (Local)    Stage (Feet)     Flow (cfs)     Trend     Forecast Status
# ---------------------------------------------------------------------------------
  08/29/2026 08 AM PDT           14.99              2                Not Applicable
  08/29/2026 09 AM PDT           14.99              2         0      Not Applicable
  08/29/2026 10 AM PDT           14.99              2         0      Not Applicable
  08/29/2026 11 AM PDT           14.99              2         0      Not Applicable
  08/29/2026 12 PM PDT           14.99              2         0      Not Applicable
  08/29/2026 01 PM PDT           14.99              2         0      Not Applicable
  08/29/2026 02 PM PDT           14.99              2         0      Not Applicable
  08/29/2026 03 PM PDT           14.99              2         0      Not Applicable
  08/29/2026 04 PM PDT           14.99              2         0      Not Applicable
  08/29/2026 05 PM PDT           14.99              2         0      Not Applicable
  08/29/2026 06 PM PDT           14.99              2         0      Not Applicable
  08/29/2026 07 PM PDT           14.99              2         0      Not Applicable
  08/29/2026 08 PM PDT           14.99              2         0      Not Applicable
  08/29/2026 09 PM PDT           14.99              2         0      Not Applicable
  08/29/2026 10 PM PDT           14.99              2         0      Not Applicable
  08/29/2026 11 PM PDT           14.99              2         0      Not Applicable
  08/30/2026 12 AM PDT           14.99              2         0      Not Applicable
  08/30/2026 01 AM PDT           14.99              2         0      Not Applicable
  08/30/2026 02 AM PDT           14.98              2         -      Not Applicable
  08/30/2026 03 AM PDT           14.98              2         0      Not Applicable
  08/30/2026 04 AM PDT           14.98              2         0      Not Applicable
  08/30/2026 05 AM PDT           14.98              2         0      Not Applicable
  08/30/2026 06 AM PDT           14.98              2         0      Not Applicable
  08/30/2026 07 AM PDT           14.98              2         0      Not Applicable
  08/30/2026 08 AM PDT           14.98              2         0      Not Applicable
  08/30/2026 09 AM PDT           14.98              2         0      Not Applicable
  08/30/2026 10 AM PDT           14.98              2         0      Not Applicable
  08/30/2026 11 AM PDT           14.98              2         0      Not Applicable
  08/30/2026 12 PM PDT           14.98              2         0      Not Applicable
  08/30/2026 01 PM PDT           14.98              2         0      Not Applicable
  08/30/2026 02 PM PDT           14.98              2         0      Not Applicable
  08/30/2026 03 PM PDT           14.98              2         0      Not Applicable
  08/30/2026 04 PM PDT           14.98              2         0      Not Applicable
  08/30/2026 05 PM PDT           14.98              2         0      Not Applicable
  08/30/2026 06 PM PDT           14.98              2         0      Not Applicable
  08/30/2026 07 PM PDT           14.98              2         0      Not Applicable
  08/30/2026 08 PM PDT           14.98              2         0      Not Applicable
  08/30/2026 09 PM PDT           14.98              2         0      Not Applicable
  08/30/2026 10 PM PDT           14.98              2         0      Not Applicable
  08/30/2026 11 PM PDT           14.98              2         0      Not Applicable
  08/31/2026 12 AM PDT           14.98              2         0      Not Applicable
  08/31/2026 01 AM PDT           14.98              2         0      Not Applicable
  08/31/2026 02 AM PDT           14.98              2         0      Not Applicable
  08/31/2026 03 AM PDT           14.98              2         0      Not Applicable
  08/31/2026 04 AM PDT           14.98              2         0      Not Applicable
  08/31/2026 05 AM PDT           14.98              2         0      Not Applicable
  08/31/2026 06 AM PDT           14.98              2         0      Not Applicable
  08/31/2026 07 AM PDT           14.98              2         0      Not Applicable
  08/31/2026 08 AM PDT           14.98              2         0      Not Applicable
  08/31/2026 09 AM PDT           14.98              2         0      Not Applicable
  08/31/2026 10 AM PDT           14.98              2         0      Not Applicable
  08/31/2026 11 AM PDT           14.98              2         0      Not Applicable
  08/31/2026 12 PM PDT           14.98              2         0      Not Applicable
  08/31/2026 01 PM PDT           14.98              2         0      Not Applicable
  08/31/2026 02 PM PDT           14.98              2         0      Not Applicable
  08/31/2026 03 PM PDT           14.98              2         0      Not Applicable
  08/31/2026 04 PM PDT           14.98              2         0      Not Applicable
  08/31/2026 05 PM PDT           14.98              2         0      Not Applicable
  08/31/2026 06 PM PDT           14.98              2         0      Not Applicable
  08/31/2026 07 PM PDT           14.98              2         0      Not Applicable
  08/31/2026 08 PM PDT           14.98              2         0      Not Applicable
  08/31/2026 09 PM PDT           14.98              2         0      Not Applicable
  08/31/2026 10 PM PDT           14.98              2         0      Not Applicable
  08/31/2026 11 PM PDT           14.98              2         0      Not Applicable
  09/01/2026 12 AM PDT           14.98              2         0      Not Applicable
  09/01/2026 01 AM PDT           14.98              2         0      Not Applicable
  09/01/2026 02 AM PDT           14.98              2         0      Not Applicable
  09/01/2026 03 AM PDT           14.98              2         0      Not Applicable
  09/01/2026 04 AM PDT           14.98              2         0      Not Applicable
  09/01/2026 05 AM PDT           14.97              2         -      Not Applicable
  09/01/2026 06 AM PDT           14.97              2         0      Not Applicable
  09/01/2026 07 AM PDT           14.97              2         0      Not Applicable
  09/01/2026 08 AM PDT           14.97              2         0      Not Applicable
  09/01/2026 09 AM PDT           14.97              2         0      Not Applicable
  09/01/2026 10 AM PDT           14.97              2         0      Not Applicable
  09/01/2026 11 AM PDT           14.97              2         0      Not Applicable
  09/01/2026 12 PM PDT           14.97              2         0      Not Applicable
  09/01/2026 01 PM PDT           14.97              2         0      Not Applicable
  09/01/2026 02 PM PDT           14.97              2         0      Not Applicable
  09/01/2026 03 PM PDT           14.97              2         0      Not Applicable
  09/01/2026 04 PM PDT           14.97              2         0      Not Applicable
  09/01/2026 05 PM PDT           14.97              2         0      Not Applicable
  09/01/2026 06 PM PDT           14.97              2         0      Not Applicable
  09/01/2026 07 PM PDT           14.97              2         0      Not Applicable
  09/01/2026 08 PM PDT           14.97              2         0      Not Applicable
  09/01/2026 09 PM PDT           14.97              2         0      Not Applicable
  09/01/2026 10 PM PDT           14.97              2         0      Not Applicable
  09/01/2026 11 PM PDT           14.97              2         0      Not Applicable
  09/02/2026 12 AM PDT           14.97              2         0      Not Applicable
  09/02/2026 01 AM PDT           14.97              2         0      Not Applicable
  09/02/2026 02 AM PDT           14.97              2         0      Not Applicable
  09/02/2026 03 AM PDT           14.97              2         0      Not Applicable
  09/02/2026 04 AM PDT           14.97              2         0      Not Applicable
  09/02/2026 05 AM PDT           14.97              2         0      Not Applicable
  09/02/2026 06 AM PDT           14.97              2         0      Not Applicable
  09/02/2026 07 AM PDT           14.97              2         0      Not Applicable
  09/02/2026 08 AM PDT           14.97              2         0      Not Applicable
  09/02/2026 09 AM PDT           14.97              2         0      Not Applicable
  09/02/2026 10 AM PDT           14.97              2         0      Not Applicable
  09/02/2026 11 AM PDT           14.97              2         0      Not Applicable
  09/02/2026 12 PM PDT           14.97              2         0      Not Applicable
  09/02/2026 01 PM PDT           14.97              2         0      Not Applicable
  09/02/2026 02 PM PDT           14.97              2         0      Not Applicable
  09/02/2026 03 PM PDT           14.97              2         0      Not Applicable
  09/02/2026 04 PM PDT           14.97              2         0      Not Applicable
  09/02/2026 05 PM PDT           14.97              2         0      Not Applicable
  09/02/2026 06 PM PDT           14.97              2         0      Not Applicable
  09/02/2026 07 PM PDT           14.97              2         0      Not Applicable
  09/02/2026 08 PM PDT           14.97              2         0      Not Applicable
  09/02/2026 09 PM PDT           14.97              2         0      Not Applicable
  09/02/2026 10 PM PDT           14.97              2         0      Not Applicable
  09/02/2026 11 PM PDT           14.97              2         0      Not Applicable
  09/03/2026 12 AM PDT           14.97              2         0      Not Applicable
  09/03/2026 01 AM PDT           14.97              2         0      Not Applicable
  09/03/2026 02 AM PDT           14.97              2         0      Not Applicable
  09/03/2026 03 AM PDT           14.97              2         0      Not Applicable
  09/03/2026 04 AM PDT           14.97              2         0      Not Applicable
  09/03/2026 05 AM PDT           14.97              2         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.