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 25 2025 at 1:11 PM PSTNext Issuance: Dec 26 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:  12/25/2025 at 01:13 PM PST
# Data Interval:  1 Hour
#
# Most Recent Date & Time of Maximum Observed:  12/21/2025 at 10:00 PM PST
# Maximum Observed Stage:                       31.03 Feet
# Maximum Observed Flow:                        2636 cfs
#
# Earliest Date & Time of Maximum Forecast:     12/25/2025 at 11:00 PM PST
# Maximum Forecast Stage:                       27.72 Feet
# Maximum Forecast Flow:                        1045 cfs
#
# OBSERVED
#
# Date & Time  (Local)    Stage (Feet)     Flow (cfs)     Trend     Observed Status
# ---------------------------------------------------------------------------------
  12/20/2025 01 PM PST           24.59             77                        Normal
  12/20/2025 02 PM PST           24.55             72         -              Normal
  12/20/2025 03 PM PST           24.52             68         -              Normal
  12/20/2025 04 PM PST           24.48             62         -              Normal
  12/20/2025 05 PM PST           24.45             59         -              Normal
  12/20/2025 06 PM PST           24.42             55         -              Normal
  12/20/2025 07 PM PST           24.40             53         -              Normal
  12/20/2025 08 PM PST           24.43             56         +              Normal
  12/20/2025 09 PM PST           24.43             56         0              Normal
  12/20/2025 10 PM PST           24.49             64         +              Normal
  12/20/2025 11 PM PST           24.65             87         +              Normal
  12/21/2025 12 AM PST           24.82            118         +              Normal
  12/21/2025 01 AM PST           24.90            137         +              Normal
  12/21/2025 02 AM PST           25.01            165         +              Normal
  12/21/2025 03 AM PST           25.05            176         +              Normal
  12/21/2025 04 AM PST           25.20            218         +              Normal
  12/21/2025 05 AM PST           25.25            233         +              Normal
  12/21/2025 06 AM PST           25.29            245         +              Normal
  12/21/2025 07 AM PST           25.37            269         +              Normal
  12/21/2025 08 AM PST           25.50            309         +              Normal
  12/21/2025 09 AM PST           25.68            367         +              Normal
  12/21/2025 10 AM PST           25.79            404         +              Normal
  12/21/2025 11 AM PST           25.77            397         -              Normal
  12/21/2025 12 PM PST           25.75            390         -              Normal
  12/21/2025 01 PM PST           25.73            384         -              Normal
  12/21/2025 02 PM PST           25.74            387         +              Normal
  12/21/2025 03 PM PST           25.84            421         +              Normal
  12/21/2025 04 PM PST           26.35            601         +              Normal
  12/21/2025 05 PM PST           27.39            927         +              Normal
  12/21/2025 06 PM PST           29.17           1648         +              Normal
  12/21/2025 07 PM PST           30.06           2090         +              Normal
  12/21/2025 08 PM PST           30.36           2252         +              Normal
  12/21/2025 09 PM PST           30.73           2460         +              Normal
  12/21/2025 10 PM PST           31.03           2636         +              Normal
  12/21/2025 11 PM PST           30.76           2477         -              Normal
  12/22/2025 12 AM PST           30.34           2241         -              Normal
  12/22/2025 01 AM PST           30.32           2230         -              Normal
  12/22/2025 02 AM PST           30.38           2263         +              Normal
  12/22/2025 03 AM PST           30.57           2369         +              Normal
  12/22/2025 04 AM PST           30.26           2197         -              Normal
  12/22/2025 05 AM PST           29.90           2007         -              Normal
  12/22/2025 06 AM PST           29.33           1723         -              Normal
  12/22/2025 07 AM PST           28.83           1493         -              Normal
  12/22/2025 08 AM PST           28.43           1322         -              Normal
  12/22/2025 09 AM PST           28.04           1165         -              Normal
  12/22/2025 10 AM PST           27.67           1026         -              Normal
  12/22/2025 11 AM PST           27.39            927         -              Normal
  12/22/2025 12 PM PST           27.05            814         -              Normal
  12/22/2025 01 PM PST           26.86            755         -              Normal
  12/22/2025 02 PM PST           26.64            692         -              Normal
  12/22/2025 03 PM PST           26.55            664         -              Normal
  12/22/2025 04 PM PST           26.47            639         -              Normal
  12/22/2025 05 PM PST           26.44            629         -              Normal
  12/22/2025 06 PM PST           26.37            608         -              Normal
  12/22/2025 07 PM PST           26.24            564         -              Normal
  12/22/2025 08 PM PST           26.16            534         -              Normal
  12/22/2025 09 PM PST           26.09            509         -              Normal
  12/22/2025 10 PM PST           26.02            484         -              Normal
  12/22/2025 11 PM PST           25.96            463         -              Normal
  12/23/2025 12 AM PST           25.91            445         -              Normal
  12/23/2025 01 AM PST           25.85            424         -              Normal
  12/23/2025 02 AM PST           25.80            407         -              Normal
  12/23/2025 03 AM PST           25.74            387         -              Normal
  12/23/2025 04 AM PST           25.72            380         -              Normal
  12/23/2025 05 AM PST           25.67            364         -              Normal
  12/23/2025 06 AM PST           25.60            341         -              Normal
  12/23/2025 07 AM PST           25.57            331         -              Normal
  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           26.91            770         -              Normal
#
# FORECAST
#
# Date & Time  (Local)    Stage (Feet)     Flow (cfs)     Trend     Forecast Status
# ---------------------------------------------------------------------------------
  12/25/2025 01 PM PST           26.84            749                        Normal
  12/25/2025 02 PM PST           26.78            732         -              Normal
  12/25/2025 03 PM PST           26.75            723         -              Normal
  12/25/2025 04 PM PST           26.75            723         0              Normal
  12/25/2025 05 PM PST           26.77            729         +              Normal
  12/25/2025 06 PM PST           26.85            752         +              Normal
  12/25/2025 07 PM PST           27.04            811         +              Normal
  12/25/2025 08 PM PST           27.26            883         +              Normal
  12/25/2025 09 PM PST           27.44            945         +              Normal
  12/25/2025 10 PM PST           27.61           1005         +              Normal
  12/25/2025 11 PM PST           27.72           1045         +              Normal
  12/26/2025 12 AM PST           27.68           1030         -              Normal
  12/26/2025 01 AM PST           27.49            962         -              Normal
  12/26/2025 02 AM PST           27.24            876         -              Normal
  12/26/2025 03 AM PST           27.02            805         -              Normal
  12/26/2025 04 AM PST           26.85            752         -              Normal
  12/26/2025 05 AM PST           26.71            712         -              Normal
  12/26/2025 06 AM PST           26.59            676         -              Normal
  12/26/2025 07 AM PST           26.45            632         -              Normal
  12/26/2025 08 AM PST           26.31            589         -              Normal
  12/26/2025 09 AM PST           26.22            556         -              Normal
  12/26/2025 10 AM PST           26.15            531         -              Normal
  12/26/2025 11 AM PST           26.11            516         -              Normal
  12/26/2025 12 PM PST           26.10            512         -              Normal
  12/26/2025 01 PM PST           26.15            531         +              Normal
  12/26/2025 02 PM PST           26.22            556         +              Normal
  12/26/2025 03 PM PST           26.28            579         +              Normal
  12/26/2025 04 PM PST           26.34            598         +              Normal
  12/26/2025 05 PM PST           26.37            608         +              Normal
  12/26/2025 06 PM PST           26.38            611         +              Normal
  12/26/2025 07 PM PST           26.31            589         -              Normal
  12/26/2025 08 PM PST           26.21            553         -              Normal
  12/26/2025 09 PM PST           26.14            527         -              Normal
  12/26/2025 10 PM PST           26.08            505         -              Normal
  12/26/2025 11 PM PST           26.04            491         -              Normal
  12/27/2025 12 AM PST           26.00            477         -              Normal
  12/27/2025 01 AM PST           25.94            456         -              Normal
  12/27/2025 02 AM PST           25.86            428         -              Normal
  12/27/2025 03 AM PST           25.78            401         -              Normal
  12/27/2025 04 AM PST           25.71            377         -              Normal
  12/27/2025 05 AM PST           25.66            360         -              Normal
  12/27/2025 06 AM PST           25.61            344         -              Normal
  12/27/2025 07 AM PST           25.57            331         -              Normal
  12/27/2025 08 AM PST           25.52            315         -              Normal
  12/27/2025 09 AM PST           25.47            299         -              Normal
  12/27/2025 10 AM PST           25.42            284         -              Normal
  12/27/2025 11 AM PST           25.39            275         -              Normal
  12/27/2025 12 PM PST           25.36            266         -              Normal
  12/27/2025 01 PM PST           25.34            259         -              Normal
  12/27/2025 02 PM PST           25.31            250         -              Normal
  12/27/2025 03 PM PST           25.29            245         -              Normal
  12/27/2025 04 PM PST           25.27            239         -              Normal
  12/27/2025 05 PM PST           25.25            233         -              Normal
  12/27/2025 06 PM PST           25.24            230         -              Normal
  12/27/2025 07 PM PST           25.23            227         -              Normal
  12/27/2025 08 PM PST           25.21            221         -              Normal
  12/27/2025 09 PM PST           25.19            215         -              Normal
  12/27/2025 10 PM PST           25.18            212         -              Normal
  12/27/2025 11 PM PST           25.17            210         -              Normal
  12/28/2025 12 AM PST           25.16            207         -              Normal
  12/28/2025 01 AM PST           25.15            204         -              Normal
  12/28/2025 02 AM PST           25.14            201         -              Normal
  12/28/2025 03 AM PST           25.12            195         -              Normal
  12/28/2025 04 AM PST           25.11            193         -              Normal
  12/28/2025 05 AM PST           25.10            190         -              Normal
  12/28/2025 06 AM PST           25.10            190         0              Normal
  12/28/2025 07 AM PST           25.09            187         -              Normal
  12/28/2025 08 AM PST           25.08            184         -              Normal
  12/28/2025 09 AM PST           25.07            182         -              Normal
  12/28/2025 10 AM PST           25.06            179         -              Normal
  12/28/2025 11 AM PST           25.05            176         -              Normal
  12/28/2025 12 PM PST           25.05            176         0              Normal
  12/28/2025 01 PM PST           25.04            173         -              Normal
  12/28/2025 02 PM PST           25.03            171         -              Normal
  12/28/2025 03 PM PST           25.02            168         -              Normal
  12/28/2025 04 PM PST           25.02            168         0              Normal
  12/28/2025 05 PM PST           25.01            165         -              Normal
  12/28/2025 06 PM PST           25.00            163         -              Normal
  12/28/2025 07 PM PST           25.00            163         0              Normal
  12/28/2025 08 PM PST           24.99            160         -              Normal
  12/28/2025 09 PM PST           24.98            157         -              Normal
  12/28/2025 10 PM PST           24.98            157         0              Normal
  12/28/2025 11 PM PST           24.97            155         -              Normal
  12/29/2025 12 AM PST           24.96            152         -              Normal
  12/29/2025 01 AM PST           24.96            152         0              Normal
  12/29/2025 02 AM PST           24.95            150         -              Normal
  12/29/2025 03 AM PST           24.95            150         0              Normal
  12/29/2025 04 AM PST           24.94            147         -              Normal
  12/29/2025 05 AM PST           24.93            144         -              Normal
  12/29/2025 06 AM PST           24.93            144         0              Normal
  12/29/2025 07 AM PST           24.93            144         0              Normal
  12/29/2025 08 AM PST           24.92            142         -              Normal
  12/29/2025 09 AM PST           24.91            139         -              Normal
  12/29/2025 10 AM PST           24.91            139         0              Normal
  12/29/2025 11 AM PST           24.90            137         -              Normal
  12/29/2025 12 PM PST           24.90            137         0              Normal
  12/29/2025 01 PM PST           24.89            134         -              Normal
  12/29/2025 02 PM PST           24.89            134         0              Normal
  12/29/2025 03 PM PST           24.88            132         -              Normal
  12/29/2025 04 PM PST           24.88            132         0              Normal
  12/29/2025 05 PM PST           24.87            129         -              Normal
  12/29/2025 06 PM PST           24.87            129         0              Normal
  12/29/2025 07 PM PST           24.86            127         -              Normal
  12/29/2025 08 PM PST           24.86            127         0              Normal
  12/29/2025 09 PM PST           24.85            124         -              Normal
  12/29/2025 10 PM PST           24.85            124         0              Normal
  12/29/2025 11 PM PST           24.84            122         -              Normal
  12/30/2025 12 AM PST           24.84            122         0              Normal
  12/30/2025 01 AM PST           24.84            122         0              Normal
  12/30/2025 02 AM PST           24.83            120         -              Normal
  12/30/2025 03 AM PST           24.82            118         -              Normal
  12/30/2025 04 AM PST           24.82            118         0              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.