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 Feet
Location: Sonoma County in CaliforniaBulletin Group: Russian NapaRiver Group: Russian Napa
Issuance Time: Jan 23 2026 at 7:17 AM PSTNext Issuance: Jan 23 2026 at 3:00 PM PST
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:  01/23/2026 at 07:19 AM PST
# Data Interval:  1 Hour
#
# Most Recent Date & Time of Maximum Observed:  01/18/2026 at 12:00 PM PST
# Maximum Observed Stage:                       16.10 Feet
# Maximum Observed Flow:                        165 cfs
#
# Earliest Date & Time of Maximum Forecast:     01/23/2026 at 08:00 AM PST
# Maximum Forecast Stage:                       15.78 Feet
# Maximum Forecast Flow:                        110 cfs
#
# OBSERVED
#
# Date & Time  (Local)    Stage (Feet)     Flow (cfs)     Trend     Observed Status
# ---------------------------------------------------------------------------------
  01/18/2026 07 AM PST           16.10            165                Not Applicable
  01/18/2026 08 AM PST           16.09            163         -      Not Applicable
  01/18/2026 09 AM PST           16.10            165         +      Not Applicable
  01/18/2026 10 AM PST           16.09            163         -      Not Applicable
  01/18/2026 11 AM PST           16.09            163         0      Not Applicable
  01/18/2026 12 PM PST           16.10            165         +      Not Applicable
  01/18/2026 01 PM PST           16.09            163         -      Not Applicable
  01/18/2026 02 PM PST           16.09            163         0      Not Applicable
  01/18/2026 03 PM PST           16.09            163         0      Not Applicable
  01/18/2026 04 PM PST           16.07            159         -      Not Applicable
  01/18/2026 05 PM PST           16.08            161         +      Not Applicable
  01/18/2026 06 PM PST           16.07            159         -      Not Applicable
  01/18/2026 07 PM PST           16.07            159         0      Not Applicable
  01/18/2026 08 PM PST           16.07            159         0      Not Applicable
  01/18/2026 09 PM PST           16.06            157         -      Not Applicable
  01/18/2026 10 PM PST           16.06            157         0      Not Applicable
  01/18/2026 11 PM PST           16.05            156         -      Not Applicable
  01/19/2026 12 AM PST           16.05            156         0      Not Applicable
  01/19/2026 01 AM PST           16.04            154         -      Not Applicable
  01/19/2026 02 AM PST           16.04            154         0      Not Applicable
  01/19/2026 03 AM PST           16.03            152         -      Not Applicable
  01/19/2026 04 AM PST           16.04            154         +      Not Applicable
  01/19/2026 05 AM PST           16.03            152         -      Not Applicable
  01/19/2026 06 AM PST           16.03            152         0      Not Applicable
  01/19/2026 07 AM PST           16.02            150         -      Not Applicable
  01/19/2026 08 AM PST           16.02            150         0      Not Applicable
  01/19/2026 09 AM PST           16.02            150         0      Not Applicable
  01/19/2026 10 AM PST           16.02            150         0      Not Applicable
  01/19/2026 11 AM PST           16.02            150         0      Not Applicable
  01/19/2026 12 PM PST           16.02            150         0      Not Applicable
  01/19/2026 01 PM PST           16.02            150         0      Not Applicable
  01/19/2026 02 PM PST           16.02            150         0      Not Applicable
  01/19/2026 03 PM PST           16.01            148         -      Not Applicable
  01/19/2026 04 PM PST           16.01            148         0      Not Applicable
  01/19/2026 05 PM PST           16.00            146         -      Not Applicable
  01/19/2026 06 PM PST           16.01            148         +      Not Applicable
  01/19/2026 07 PM PST           16.00            146         -      Not Applicable
  01/19/2026 08 PM PST           15.99            145         -      Not Applicable
  01/19/2026 09 PM PST           15.99            145         0      Not Applicable
  01/19/2026 10 PM PST           15.98            143         -      Not Applicable
  01/19/2026 11 PM PST           15.98            143         0      Not Applicable
  01/20/2026 12 AM PST           15.98            143         0      Not Applicable
  01/20/2026 01 AM PST           15.98            143         0      Not Applicable
  01/20/2026 02 AM PST           15.97            141         -      Not Applicable
  01/20/2026 03 AM PST           15.96            139         -      Not Applicable
  01/20/2026 04 AM PST           15.97            141         +      Not Applicable
  01/20/2026 05 AM PST           15.96            139         -      Not Applicable
  01/20/2026 06 AM PST           15.96            139         0      Not Applicable
  01/20/2026 07 AM PST           15.96            139         0      Not Applicable
  01/20/2026 08 AM PST           15.96            139         0      Not Applicable
  01/20/2026 09 AM PST           15.95            138         -      Not Applicable
  01/20/2026 10 AM PST           15.95            138         0      Not Applicable
  01/20/2026 11 AM PST           15.95            138         0      Not Applicable
  01/20/2026 12 PM PST           15.95            138         0      Not Applicable
  01/20/2026 01 PM PST           15.95            138         0      Not Applicable
  01/20/2026 02 PM PST           15.95            138         0      Not Applicable
  01/20/2026 03 PM PST           15.94            136         -      Not Applicable
  01/20/2026 04 PM PST           15.94            136         0      Not Applicable
  01/20/2026 05 PM PST           15.94            136         0      Not Applicable
  01/20/2026 06 PM PST           15.93            134         -      Not Applicable
  01/20/2026 07 PM PST           15.93            134         0      Not Applicable
  01/20/2026 08 PM PST           15.93            134         0      Not Applicable
  01/20/2026 09 PM PST           15.93            134         0      Not Applicable
  01/20/2026 10 PM PST           15.92            132         -      Not Applicable
  01/20/2026 11 PM PST           15.92            132         0      Not Applicable
  01/21/2026 12 AM PST           15.92            132         0      Not Applicable
  01/21/2026 01 AM PST           15.92            132         0      Not Applicable
  01/21/2026 02 AM PST           15.92            132         0      Not Applicable
  01/21/2026 03 AM PST           15.91            131         -      Not Applicable
  01/21/2026 04 AM PST           15.90            129         -      Not Applicable
  01/21/2026 05 AM PST           15.90            129         0      Not Applicable
  01/21/2026 06 AM PST           15.90            129         0      Not Applicable
  01/21/2026 07 AM PST           15.90            129         0      Not Applicable
  01/21/2026 08 AM PST           15.89            127         -      Not Applicable
  01/21/2026 09 AM PST           15.90            129         +      Not Applicable
  01/21/2026 10 AM PST           15.90            129         0      Not Applicable
  01/21/2026 11 AM PST           15.90            129         0      Not Applicable
  01/21/2026 12 PM PST           15.89            127         -      Not Applicable
  01/21/2026 01 PM PST           15.90            129         +      Not Applicable
  01/21/2026 02 PM PST           15.89            127         -      Not Applicable
  01/21/2026 03 PM PST           15.89            127         0      Not Applicable
  01/21/2026 04 PM PST           15.88            126         -      Not Applicable
  01/21/2026 05 PM PST           15.88            126         0      Not Applicable
  01/21/2026 06 PM PST           15.88            126         0      Not Applicable
  01/21/2026 07 PM PST           15.88            126         0      Not Applicable
  01/21/2026 08 PM PST           15.87            124         -      Not Applicable
  01/21/2026 09 PM PST           15.87            124         0      Not Applicable
  01/21/2026 10 PM PST           15.86            122         -      Not Applicable
  01/21/2026 11 PM PST           15.86            122         0      Not Applicable
  01/22/2026 12 AM PST           15.85            121         -      Not Applicable
  01/22/2026 01 AM PST           15.85            121         0      Not Applicable
  01/22/2026 02 AM PST           15.85            121         0      Not Applicable
  01/22/2026 03 AM PST           15.85            121         0      Not Applicable
  01/22/2026 04 AM PST           15.85            121         0      Not Applicable
  01/22/2026 05 AM PST           15.84            119         -      Not Applicable
  01/22/2026 06 AM PST           15.85            121         +      Not Applicable
  01/22/2026 07 AM PST           15.84            119         -      Not Applicable
  01/22/2026 08 AM PST           15.84            119         0      Not Applicable
  01/22/2026 09 AM PST           15.83            118         -      Not Applicable
  01/22/2026 10 AM PST           15.84            119         +      Not Applicable
  01/22/2026 11 AM PST           15.84            119         0      Not Applicable
  01/22/2026 12 PM PST           15.84            119         0      Not Applicable
  01/22/2026 01 PM PST           15.84            119         0      Not Applicable
  01/22/2026 02 PM PST           15.83            118         -      Not Applicable
  01/22/2026 03 PM PST           15.84            119         +      Not Applicable
  01/22/2026 04 PM PST           15.84            119         0      Not Applicable
  01/22/2026 05 PM PST           15.83            118         -      Not Applicable
  01/22/2026 06 PM PST           15.82            116         -      Not Applicable
  01/22/2026 07 PM PST           15.82            116         0      Not Applicable
  01/22/2026 08 PM PST           15.82            116         0      Not Applicable
  01/22/2026 09 PM PST           15.81            114         -      Not Applicable
  01/22/2026 10 PM PST           15.81            114         0      Not Applicable
  01/22/2026 11 PM PST           15.81            114         0      Not Applicable
  01/23/2026 12 AM PST           15.80            113         -      Not Applicable
  01/23/2026 01 AM PST           15.80            113         0      Not Applicable
  01/23/2026 02 AM PST           15.80            113         0      Not Applicable
  01/23/2026 03 AM PST           15.79            111         -      Not Applicable
  01/23/2026 04 AM PST           15.79            111         0      Not Applicable
  01/23/2026 05 AM PST           15.79            111         0      Not Applicable
  01/23/2026 06 AM PST           15.79            111         0      Not Applicable
  01/23/2026 07 AM PST           15.79            111         0      Not Applicable
#
# FORECAST
#
# Date & Time  (Local)    Stage (Feet)     Flow (cfs)     Trend     Forecast Status
# ---------------------------------------------------------------------------------
  01/23/2026 08 AM PST           15.78            110                Not Applicable
  01/23/2026 09 AM PST           15.78            110         0      Not Applicable
  01/23/2026 10 AM PST           15.78            110         0      Not Applicable
  01/23/2026 11 AM PST           15.78            110         0      Not Applicable
  01/23/2026 12 PM PST           15.77            108         -      Not Applicable
  01/23/2026 01 PM PST           15.77            108         0      Not Applicable
  01/23/2026 02 PM PST           15.77            108         0      Not Applicable
  01/23/2026 03 PM PST           15.77            108         0      Not Applicable
  01/23/2026 04 PM PST           15.76            107         -      Not Applicable
  01/23/2026 05 PM PST           15.75            105         -      Not Applicable
  01/23/2026 06 PM PST           15.75            105         0      Not Applicable
  01/23/2026 07 PM PST           15.75            105         0      Not Applicable
  01/23/2026 08 PM PST           15.75            105         0      Not Applicable
  01/23/2026 09 PM PST           15.74            104         -      Not Applicable
  01/23/2026 10 PM PST           15.74            104         0      Not Applicable
  01/23/2026 11 PM PST           15.74            104         0      Not Applicable
  01/24/2026 12 AM PST           15.74            104         0      Not Applicable
  01/24/2026 01 AM PST           15.73            102         -      Not Applicable
  01/24/2026 02 AM PST           15.73            102         0      Not Applicable
  01/24/2026 03 AM PST           15.73            102         0      Not Applicable
  01/24/2026 04 AM PST           15.73            102         0      Not Applicable
  01/24/2026 05 AM PST           15.72            101         -      Not Applicable
  01/24/2026 06 AM PST           15.72            101         0      Not Applicable
  01/24/2026 07 AM PST           15.72            101         0      Not Applicable
  01/24/2026 08 AM PST           15.72            101         0      Not Applicable
  01/24/2026 09 AM PST           15.71             99         -      Not Applicable
  01/24/2026 10 AM PST           15.71             99         0      Not Applicable
  01/24/2026 11 AM PST           15.71             99         0      Not Applicable
  01/24/2026 12 PM PST           15.71             99         0      Not Applicable
  01/24/2026 01 PM PST           15.71             99         0      Not Applicable
  01/24/2026 02 PM PST           15.70             98         -      Not Applicable
  01/24/2026 03 PM PST           15.70             98         0      Not Applicable
  01/24/2026 04 PM PST           15.70             98         0      Not Applicable
  01/24/2026 05 PM PST           15.70             98         0      Not Applicable
  01/24/2026 06 PM PST           15.69             96         -      Not Applicable
  01/24/2026 07 PM PST           15.69             96         0      Not Applicable
  01/24/2026 08 PM PST           15.69             96         0      Not Applicable
  01/24/2026 09 PM PST           15.69             96         0      Not Applicable
  01/24/2026 10 PM PST           15.69             96         0      Not Applicable
  01/24/2026 11 PM PST           15.68             95         -      Not Applicable
  01/25/2026 12 AM PST           15.68             95         0      Not Applicable
  01/25/2026 01 AM PST           15.68             95         0      Not Applicable
  01/25/2026 02 AM PST           15.68             95         0      Not Applicable
  01/25/2026 03 AM PST           15.68             95         0      Not Applicable
  01/25/2026 04 AM PST           15.67             94         -      Not Applicable
  01/25/2026 05 AM PST           15.67             94         0      Not Applicable
  01/25/2026 06 AM PST           15.67             94         0      Not Applicable
  01/25/2026 07 AM PST           15.66             92         -      Not Applicable
  01/25/2026 08 AM PST           15.66             92         0      Not Applicable
  01/25/2026 09 AM PST           15.66             92         0      Not Applicable
  01/25/2026 10 AM PST           15.66             92         0      Not Applicable
  01/25/2026 11 AM PST           15.66             92         0      Not Applicable
  01/25/2026 12 PM PST           15.65             91         -      Not Applicable
  01/25/2026 01 PM PST           15.65             91         0      Not Applicable
  01/25/2026 02 PM PST           15.65             91         0      Not Applicable
  01/25/2026 03 PM PST           15.65             91         0      Not Applicable
  01/25/2026 04 PM PST           15.64             89         -      Not Applicable
  01/25/2026 05 PM PST           15.64             89         0      Not Applicable
  01/25/2026 06 PM PST           15.64             89         0      Not Applicable
  01/25/2026 07 PM PST           15.64             89         0      Not Applicable
  01/25/2026 08 PM PST           15.64             89         0      Not Applicable
  01/25/2026 09 PM PST           15.63             88         -      Not Applicable
  01/25/2026 10 PM PST           15.63             88         0      Not Applicable
  01/25/2026 11 PM PST           15.63             88         0      Not Applicable
  01/26/2026 12 AM PST           15.63             88         0      Not Applicable
  01/26/2026 01 AM PST           15.63             88         0      Not Applicable
  01/26/2026 02 AM PST           15.63             88         0      Not Applicable
  01/26/2026 03 AM PST           15.63             88         0      Not Applicable
  01/26/2026 04 AM PST           15.62             87         -      Not Applicable
  01/26/2026 05 AM PST           15.62             87         0      Not Applicable
  01/26/2026 06 AM PST           15.62             87         0      Not Applicable
  01/26/2026 07 AM PST           15.62             87         0      Not Applicable
  01/26/2026 08 AM PST           15.62             87         0      Not Applicable
  01/26/2026 09 AM PST           15.62             87         0      Not Applicable
  01/26/2026 10 AM PST           15.61             85         -      Not Applicable
  01/26/2026 11 AM PST           15.61             85         0      Not Applicable
  01/26/2026 12 PM PST           15.61             85         0      Not Applicable
  01/26/2026 01 PM PST           15.61             85         0      Not Applicable
  01/26/2026 02 PM PST           15.61             85         0      Not Applicable
  01/26/2026 03 PM PST           15.61             85         0      Not Applicable
  01/26/2026 04 PM PST           15.61             85         0      Not Applicable
  01/26/2026 05 PM PST           15.60             84         -      Not Applicable
  01/26/2026 06 PM PST           15.60             84         0      Not Applicable
  01/26/2026 07 PM PST           15.60             84         0      Not Applicable
  01/26/2026 08 PM PST           15.60             84         0      Not Applicable
  01/26/2026 09 PM PST           15.60             84         0      Not Applicable
  01/26/2026 10 PM PST           15.60             84         0      Not Applicable
  01/26/2026 11 PM PST           15.60             84         0      Not Applicable
  01/27/2026 12 AM PST           15.59             83         -      Not Applicable
  01/27/2026 01 AM PST           15.59             83         0      Not Applicable
  01/27/2026 02 AM PST           15.59             83         0      Not Applicable
  01/27/2026 03 AM PST           15.59             83         0      Not Applicable
  01/27/2026 04 AM PST           15.59             83         0      Not Applicable
  01/27/2026 05 AM PST           15.58             81         -      Not Applicable
  01/27/2026 06 AM PST           15.58             81         0      Not Applicable
  01/27/2026 07 AM PST           15.58             81         0      Not Applicable
  01/27/2026 08 AM PST           15.58             81         0      Not Applicable
  01/27/2026 09 AM PST           15.58             81         0      Not Applicable
  01/27/2026 10 AM PST           15.58             81         0      Not Applicable
  01/27/2026 11 AM PST           15.58             81         0      Not Applicable
  01/27/2026 12 PM PST           15.57             80         -      Not Applicable
  01/27/2026 01 PM PST           15.57             80         0      Not Applicable
  01/27/2026 02 PM PST           15.57             80         0      Not Applicable
  01/27/2026 03 PM PST           15.57             80         0      Not Applicable
  01/27/2026 04 PM PST           15.57             80         0      Not Applicable
  01/27/2026 05 PM PST           15.57             80         0      Not Applicable
  01/27/2026 06 PM PST           15.57             80         0      Not Applicable
  01/27/2026 07 PM PST           15.56             79         -      Not Applicable
  01/27/2026 08 PM PST           15.56             79         0      Not Applicable
  01/27/2026 09 PM PST           15.56             79         0      Not Applicable
  01/27/2026 10 PM PST           15.56             79         0      Not Applicable
  01/27/2026 11 PM PST           15.56             79         0      Not Applicable
  01/28/2026 12 AM PST           15.56             79         0      Not Applicable
  01/28/2026 01 AM PST           15.56             79         0      Not Applicable
  01/28/2026 02 AM PST           15.56             79         0      Not Applicable
  01/28/2026 03 AM PST           15.56             79         0      Not Applicable
  01/28/2026 04 AM PST           15.56             79         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.