SANTA ROSA CREEK - SANTA ROSA (SSAC1)
Latitude: 38.44º NLongitude: 122.72º WElevation: 138 Feet
Location: Sonoma County in CaliforniaBulletin Group: Russian NapaRiver Group: Russian Napa
Issuance Time: Dec 28 2025 at 8:55 AM PSTNext Issuance: Dec 29 2025 at 9:00 AM PST
Action/Monitor: 40.0 FeetMinor Flood: 41.0 FeetModerate Flood: 45.0 FeetMajor Flood: 50.0 Feet

# Tabular Observed and Forecast Hydrograph Information
#
# Location: Santa Rosa Creek - Santa Rosa (SSAC1)
#
# File Generation Time:  12/28/2025 at 08:57 AM PST
# Data Interval:  1 Hour
#
# Most Recent Date & Time of Maximum Observed:  12/25/2025 at 05:00 AM PST
# Maximum Observed Stage:                       28.90 Feet
# Maximum Observed Flow:                        1525 cfs
#
# Earliest Date & Time of Maximum Forecast:     12/28/2025 at 09:00 AM PST
# Maximum Forecast Stage:                       25.13 Feet
# Maximum Forecast Flow:                        198 cfs
#
# OBSERVED
#
# Date & Time  (Local)    Stage (Feet)     Flow (cfs)     Trend     Observed Status
# ---------------------------------------------------------------------------------
  12/23/2025 08 AM PST           25.52            315                        Normal
  12/23/2025 09 AM PST           25.50            309         -              Normal
  12/23/2025 10 AM PST           25.49            306         -              Normal
  12/23/2025 11 AM PST           25.43            287         -              Normal
  12/23/2025 12 PM PST           25.40            278         -              Normal
  12/23/2025 01 PM PST           25.37            269         -              Normal
  12/23/2025 02 PM PST           25.35            263         -              Normal
  12/23/2025 03 PM PST           25.33            256         -              Normal
  12/23/2025 04 PM PST           25.31            250         -              Normal
  12/23/2025 05 PM PST           25.29            245         -              Normal
  12/23/2025 06 PM PST           25.28            242         -              Normal
  12/23/2025 07 PM PST           25.29            245         +              Normal
  12/23/2025 08 PM PST           25.28            242         -              Normal
  12/23/2025 09 PM PST           25.30            248         +              Normal
  12/23/2025 10 PM PST           25.27            239         -              Normal
  12/23/2025 11 PM PST           25.30            248         +              Normal
  12/24/2025 12 AM PST           25.39            275         +              Normal
  12/24/2025 01 AM PST           25.94            456         +              Normal
  12/24/2025 02 AM PST           26.35            601         +              Normal
  12/24/2025 03 AM PST           26.59            676         +              Normal
  12/24/2025 04 AM PST           26.54            661         -              Normal
  12/24/2025 05 AM PST           26.35            601         -              Normal
  12/24/2025 06 AM PST           26.42            623         +              Normal
  12/24/2025 07 AM PST           26.32            592         -              Normal
  12/24/2025 08 AM PST           26.12            520         -              Normal
  12/24/2025 09 AM PST           26.02            484         -              Normal
  12/24/2025 10 AM PST           25.92            449         -              Normal
  12/24/2025 11 AM PST           25.83            418         -              Normal
  12/24/2025 12 PM PST           25.75            390         -              Normal
  12/24/2025 01 PM PST           25.67            364         -              Normal
  12/24/2025 02 PM PST           25.60            341         -              Normal
  12/24/2025 03 PM PST           25.55            325         -              Normal
  12/24/2025 04 PM PST           25.53            318         -              Normal
  12/24/2025 05 PM PST           25.50            309         -              Normal
  12/24/2025 06 PM PST           25.49            306         -              Normal
  12/24/2025 07 PM PST           25.57            331         +              Normal
  12/24/2025 08 PM PST           25.91            445         +              Normal
  12/24/2025 09 PM PST           26.04            491         +              Normal
  12/24/2025 10 PM PST           25.96            463         -              Normal
  12/24/2025 11 PM PST           25.99            473         +              Normal
  12/25/2025 12 AM PST           26.18            542         +              Normal
  12/25/2025 01 AM PST           26.15            531         -              Normal
  12/25/2025 02 AM PST           26.54            661         +              Normal
  12/25/2025 03 AM PST           27.56            987         +              Normal
  12/25/2025 04 AM PST           28.29           1265         +              Normal
  12/25/2025 05 AM PST           28.90           1525         +              Normal
  12/25/2025 06 AM PST           28.45           1330         -              Normal
  12/25/2025 07 AM PST           27.75           1056         -              Normal
  12/25/2025 08 AM PST           27.22            870         -              Normal
  12/25/2025 09 AM PST           27.01            801         -              Normal
  12/25/2025 10 AM PST           27.04            811         +              Normal
  12/25/2025 11 AM PST           26.96            785         -              Normal
  12/25/2025 12 PM PST           26.88            761         -              Normal
  12/25/2025 01 PM PST           26.85            752         -              Normal
  12/25/2025 02 PM PST           26.80            738         -              Normal
  12/25/2025 03 PM PST           26.74            720         -              Normal
  12/25/2025 04 PM PST           26.62            686         -              Normal
  12/25/2025 05 PM PST           26.49            645         -              Normal
  12/25/2025 06 PM PST           26.38            611         -              Normal
  12/25/2025 07 PM PST           26.67            701         +              Normal
  12/25/2025 08 PM PST           26.99            795         +              Normal
  12/25/2025 09 PM PST           26.94            779         -              Normal
  12/25/2025 10 PM PST           27.28            890         +              Normal
  12/25/2025 11 PM PST           27.57            990         +              Normal
  12/26/2025 12 AM PST           27.34            910         -              Normal
  12/26/2025 01 AM PST           27.14            843         -              Normal
  12/26/2025 02 AM PST           26.93            776         -              Normal
  12/26/2025 03 AM PST           26.71            712         -              Normal
  12/26/2025 04 AM PST           26.57            670         -              Normal
  12/26/2025 05 AM PST           26.42            623         -              Normal
  12/26/2025 06 AM PST           26.31            589         -              Normal
  12/26/2025 07 AM PST           26.19            545         -              Normal
  12/26/2025 08 AM PST           26.11            516         -              Normal
  12/26/2025 09 AM PST           26.04            491         -              Normal
  12/26/2025 10 AM PST           25.98            470         -              Normal
  12/26/2025 11 AM PST           25.93            452         -              Normal
  12/26/2025 12 PM PST           25.90            442         -              Normal
  12/26/2025 01 PM PST           25.88            435         -              Normal
  12/26/2025 02 PM PST           26.21            553         +              Normal
  12/26/2025 03 PM PST           26.63            689         +              Normal
  12/26/2025 04 PM PST           26.97            789         +              Normal
  12/26/2025 05 PM PST           26.89            764         -              Normal
  12/26/2025 06 PM PST           26.79            735         -              Normal
  12/26/2025 07 PM PST           26.88            761         +              Normal
  12/26/2025 08 PM PST           26.62            686         -              Normal
  12/26/2025 09 PM PST           26.44            629         -              Normal
  12/26/2025 10 PM PST           26.26            571         -              Normal
  12/26/2025 11 PM PST           26.12            520         -              Normal
  12/27/2025 12 AM PST           26.02            484         -              Normal
  12/27/2025 01 AM PST           25.94            456         -              Normal
  12/27/2025 02 AM PST           25.88            435         -              Normal
  12/27/2025 03 AM PST           25.83            418         -              Normal
  12/27/2025 04 AM PST           25.80            407         -              Normal
  12/27/2025 05 AM PST           25.77            397         -              Normal
  12/27/2025 06 AM PST           25.71            377         -              Normal
  12/27/2025 07 AM PST           25.73            384         +              Normal
  12/27/2025 08 AM PST           25.67            364         -              Normal
  12/27/2025 09 AM PST           25.62            347         -              Normal
  12/27/2025 10 AM PST           25.62            347         0              Normal
  12/27/2025 11 AM PST           25.57            331         -              Normal
  12/27/2025 12 PM PST           25.57            331         0              Normal
  12/27/2025 01 PM PST           25.55            325         -              Normal
  12/27/2025 02 PM PST           25.51            312         -              Normal
  12/27/2025 03 PM PST           25.45            293         -              Normal
  12/27/2025 04 PM PST           25.44            290         -              Normal
  12/27/2025 05 PM PST           25.41            281         -              Normal
  12/27/2025 06 PM PST           25.39            275         -              Normal
  12/27/2025 07 PM PST           25.37            269         -              Normal
  12/27/2025 08 PM PST           25.36            266         -              Normal
  12/27/2025 09 PM PST           25.33            256         -              Normal
  12/27/2025 10 PM PST           25.32            253         -              Normal
  12/27/2025 11 PM PST           25.30            248         -              Normal
  12/28/2025 12 AM PST           25.28            242         -              Normal
  12/28/2025 01 AM PST           25.26            236         -              Normal
  12/28/2025 02 AM PST           25.25            233         -              Normal
  12/28/2025 03 AM PST           25.23            227         -              Normal
  12/28/2025 04 AM PST           25.22            224         -              Normal
  12/28/2025 05 AM PST           25.21            221         -              Normal
  12/28/2025 06 AM PST           25.19            215         -              Normal
  12/28/2025 07 AM PST           25.17            210         -              Normal
  12/28/2025 08 AM PST           25.15            204         -              Normal
#
# FORECAST
#
# Date & Time  (Local)    Stage (Feet)     Flow (cfs)     Trend     Forecast Status
# ---------------------------------------------------------------------------------
  12/28/2025 09 AM PST           25.13            198                        Normal
  12/28/2025 10 AM PST           25.10            190         -              Normal
  12/28/2025 11 AM PST           25.08            184         -              Normal
  12/28/2025 12 PM PST           25.06            179         -              Normal
  12/28/2025 01 PM PST           25.04            173         -              Normal
  12/28/2025 02 PM PST           25.02            168         -              Normal
  12/28/2025 03 PM PST           25.00            163         -              Normal
  12/28/2025 04 PM PST           24.98            157         -              Normal
  12/28/2025 05 PM PST           24.95            150         -              Normal
  12/28/2025 06 PM PST           24.95            150         0              Normal
  12/28/2025 07 PM PST           24.94            147         -              Normal
  12/28/2025 08 PM PST           24.94            147         0              Normal
  12/28/2025 09 PM PST           24.93            144         -              Normal
  12/28/2025 10 PM PST           24.92            142         -              Normal
  12/28/2025 11 PM PST           24.92            142         0              Normal
  12/29/2025 12 AM PST           24.91            139         -              Normal
  12/29/2025 01 AM PST           24.91            139         0              Normal
  12/29/2025 02 AM PST           24.90            137         -              Normal
  12/29/2025 03 AM PST           24.90            137         0              Normal
  12/29/2025 04 AM PST           24.89            134         -              Normal
  12/29/2025 05 AM PST           24.89            134         0              Normal
  12/29/2025 06 AM PST           24.88            132         -              Normal
  12/29/2025 07 AM PST           24.88            132         0              Normal
  12/29/2025 08 AM PST           24.87            129         -              Normal
  12/29/2025 09 AM PST           24.87            129         0              Normal
  12/29/2025 10 AM PST           24.86            127         -              Normal
  12/29/2025 11 AM PST           24.86            127         0              Normal
  12/29/2025 12 PM PST           24.85            124         -              Normal
  12/29/2025 01 PM PST           24.85            124         0              Normal
  12/29/2025 02 PM PST           24.84            122         -              Normal
  12/29/2025 03 PM PST           24.84            122         0              Normal
  12/29/2025 04 PM PST           24.83            120         -              Normal
  12/29/2025 05 PM PST           24.83            120         0              Normal
  12/29/2025 06 PM PST           24.82            118         -              Normal
  12/29/2025 07 PM PST           24.82            118         0              Normal
  12/29/2025 08 PM PST           24.81            115         -              Normal
  12/29/2025 09 PM PST           24.81            115         0              Normal
  12/29/2025 10 PM PST           24.80            113         -              Normal
  12/29/2025 11 PM PST           24.80            113         0              Normal
  12/30/2025 12 AM PST           24.79            111         -              Normal
  12/30/2025 01 AM PST           24.79            111         0              Normal
  12/30/2025 02 AM PST           24.79            111         0              Normal
  12/30/2025 03 AM PST           24.78            109         -              Normal
  12/30/2025 04 AM PST           24.77            107         -              Normal
  12/30/2025 05 AM PST           24.77            107         0              Normal
  12/30/2025 06 AM PST           24.77            107         0              Normal
  12/30/2025 07 AM PST           24.76            105         -              Normal
  12/30/2025 08 AM PST           24.76            105         0              Normal
  12/30/2025 09 AM PST           24.75            103         -              Normal
  12/30/2025 10 AM PST           24.75            103         0              Normal
  12/30/2025 11 AM PST           24.74            102         -              Normal
  12/30/2025 12 PM PST           24.74            102         0              Normal
  12/30/2025 01 PM PST           24.73            100         -              Normal
  12/30/2025 02 PM PST           24.73            100         0              Normal
  12/30/2025 03 PM PST           24.72             98         -              Normal
  12/30/2025 04 PM PST           24.72             98         0              Normal
  12/30/2025 05 PM PST           24.71             96         -              Normal
  12/30/2025 06 PM PST           24.71             96         0              Normal
  12/30/2025 07 PM PST           24.71             96         0              Normal
  12/30/2025 08 PM PST           24.70             95         -              Normal
  12/30/2025 09 PM PST           24.70             95         0              Normal
  12/30/2025 10 PM PST           24.69             93         -              Normal
  12/30/2025 11 PM PST           24.69             93         0              Normal
  12/31/2025 12 AM PST           24.68             92         -              Normal
  12/31/2025 01 AM PST           24.68             92         0              Normal
  12/31/2025 02 AM PST           24.68             92         0              Normal
  12/31/2025 03 AM PST           24.67             90         -              Normal
  12/31/2025 04 AM PST           24.66             88         -              Normal
  12/31/2025 05 AM PST           24.66             88         0              Normal
  12/31/2025 06 AM PST           24.66             88         0              Normal
  12/31/2025 07 AM PST           24.66             88         0              Normal
  12/31/2025 08 AM PST           24.65             87         -              Normal
  12/31/2025 09 AM PST           24.64             85         -              Normal
  12/31/2025 10 AM PST           24.64             85         0              Normal
  12/31/2025 11 AM PST           24.64             85         0              Normal
  12/31/2025 12 PM PST           24.63             84         -              Normal
  12/31/2025 01 PM PST           24.63             84         0              Normal
  12/31/2025 02 PM PST           24.63             84         0              Normal
  12/31/2025 03 PM PST           24.62             82         -              Normal
  12/31/2025 04 PM PST           24.62             82         0              Normal
  12/31/2025 05 PM PST           24.61             80         -              Normal
  12/31/2025 06 PM PST           24.61             80         0              Normal
  12/31/2025 07 PM PST           24.61             80         0              Normal
  12/31/2025 08 PM PST           24.61             80         0              Normal
  12/31/2025 09 PM PST           24.61             80         0              Normal
  12/31/2025 10 PM PST           24.61             80         0              Normal
  12/31/2025 11 PM PST           24.61             80         0              Normal
  01/01/2026 12 AM PST           24.61             80         0              Normal
  01/01/2026 01 AM PST           24.61             80         0              Normal
  01/01/2026 02 AM PST           24.62             82         +              Normal
  01/01/2026 03 AM PST           24.62             82         0              Normal
  01/01/2026 04 AM PST           24.62             82         0              Normal
  01/01/2026 05 AM PST           24.62             82         0              Normal
  01/01/2026 06 AM PST           24.62             82         0              Normal
  01/01/2026 07 AM PST           24.63             84         +              Normal
  01/01/2026 08 AM PST           24.63             84         0              Normal
  01/01/2026 09 AM PST           24.63             84         0              Normal
  01/01/2026 10 AM PST           24.63             84         0              Normal
  01/01/2026 11 AM PST           24.62             82         -              Normal
  01/01/2026 12 PM PST           24.62             82         0              Normal
  01/01/2026 01 PM PST           24.62             82         0              Normal
  01/01/2026 02 PM PST           24.62             82         0              Normal
  01/01/2026 03 PM PST           24.62             82         0              Normal
  01/01/2026 04 PM PST           24.62             82         0              Normal
  01/01/2026 05 PM PST           24.61             80         -              Normal
  01/01/2026 06 PM PST           24.61             80         0              Normal
  01/01/2026 07 PM PST           24.61             80         0              Normal
  01/01/2026 08 PM PST           24.61             80         0              Normal
  01/01/2026 09 PM PST           24.61             80         0              Normal
  01/01/2026 10 PM PST           24.61             80         0              Normal
  01/01/2026 11 PM PST           24.61             80         0              Normal
  01/02/2026 12 AM PST           24.61             80         0              Normal
  01/02/2026 01 AM PST           24.62             82         +              Normal
  01/02/2026 02 AM PST           24.66             88         +              Normal
  01/02/2026 03 AM PST           24.71             96         +              Normal
  01/02/2026 04 AM PST           24.76            105         +              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.