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

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MARK WEST CREEK - MIRABEL HEIGHTS (MWEC1)
Latitude: 38.49º NLongitude: 122.85º WElevation: 50 FeetForecast Type: Unofficial Location
Location: Sonoma County in CaliforniaBulletin Group: Russian NapaRiver Group: Russian Napa
Issuance Time: Apr 20 2026 at 6:54 AM PDTNext Issuance: Apr 21 2026 at 9:00 AM PDT
Action/Monitor: 50.5 FeetMinor Flood: 55.0 FeetModerate Flood: 59.0 FeetMajor Flood: 65.0 Feet
Please Note:

# Tabular Observed and Forecast Hydrograph Information
#
# Location: Mark West Creek - Mirabel Heights (MWEC1)
#
# File Generation Time:  04/20/2026 at 06:55 AM PDT
# Data Interval:  1 Hour
#
# Most Recent Date & Time of Maximum Observed:  04/15/2026 at 07:00 AM PDT
# Maximum Observed Stage:                       42.27 Feet
# Maximum Observed Flow:                        190 cfs
#
# Earliest Date & Time of Maximum Forecast:     04/22/2026 at 06:00 AM PDT
# Maximum Forecast Stage:                       43.37 Feet
# Maximum Forecast Flow:                        354 cfs
#
# OBSERVED
#
# Date & Time  (Local)    Stage (Feet)     Flow (cfs)     Trend     Observed Status
# ---------------------------------------------------------------------------------
  04/15/2026 06 AM PDT           42.27            190                        Normal
  04/15/2026 07 AM PDT           42.27            190         0              Normal
  04/15/2026 08 AM PDT           42.24            187         -              Normal
  04/15/2026 09 AM PDT           42.23            185         -              Normal
  04/15/2026 10 AM PDT           42.20            182         -              Normal
  04/15/2026 11 AM PDT           42.18            180         -              Normal
  04/15/2026 12 PM PDT           42.17            178         -              Normal
  04/15/2026 01 PM PDT           42.15            176         -              Normal
  04/15/2026 02 PM PDT           42.14            175         -              Normal
  04/15/2026 03 PM PDT           42.12            173         -              Normal
  04/15/2026 04 PM PDT           42.11            172         -              Normal
  04/15/2026 05 PM PDT           42.09            169         -              Normal
  04/15/2026 06 PM PDT           42.08            168         -              Normal
  04/15/2026 07 PM PDT           42.05            165         -              Normal
  04/15/2026 08 PM PDT           42.04            164         -              Normal
  04/15/2026 09 PM PDT           42.03            163         -              Normal
  04/15/2026 10 PM PDT           42.01            161         -              Normal
  04/15/2026 11 PM PDT           42.00            160         -              Normal
  04/16/2026 12 AM PDT           41.98            157         -              Normal
  04/16/2026 01 AM PDT           41.96            154         -              Normal
  04/16/2026 02 AM PDT           41.94            151         -              Normal
  04/16/2026 03 AM PDT           41.93            150         -              Normal
  04/16/2026 04 AM PDT           41.93            150         0              Normal
  04/16/2026 05 AM PDT           41.92            148         -              Normal
  04/16/2026 06 AM PDT           41.93            150         +              Normal
  04/16/2026 07 AM PDT           41.87            142         -              Normal
  04/16/2026 08 AM PDT           41.85            139         -              Normal
  04/16/2026 09 AM PDT           41.84            138         -              Normal
  04/16/2026 10 AM PDT           41.83            136         -              Normal
  04/16/2026 11 AM PDT           41.82            135         -              Normal
  04/16/2026 12 PM PDT           41.81            134         -              Normal
  04/16/2026 01 PM PDT           41.80            133         -              Normal
  04/16/2026 02 PM PDT           41.79            131         -              Normal
  04/16/2026 03 PM PDT           41.77            129         -              Normal
  04/16/2026 04 PM PDT           41.76            128         -              Normal
  04/16/2026 05 PM PDT           41.76            128         0              Normal
  04/16/2026 06 PM PDT           41.73            124         -              Normal
  04/16/2026 07 PM PDT           41.72            123         -              Normal
  04/16/2026 08 PM PDT           41.70            121         -              Normal
  04/16/2026 09 PM PDT           41.68            119         -              Normal
  04/16/2026 10 PM PDT           41.67            117         -              Normal
  04/16/2026 11 PM PDT           41.65            115         -              Normal
  04/17/2026 12 AM PDT           41.64            114         -              Normal
  04/17/2026 01 AM PDT           41.63            113         -              Normal
  04/17/2026 02 AM PDT           41.62            112         -              Normal
  04/17/2026 03 AM PDT           41.61            111         -              Normal
  04/17/2026 04 AM PDT           41.59            109         -              Normal
  04/17/2026 05 AM PDT           41.59            109         0              Normal
  04/17/2026 06 AM PDT           41.57            107         -              Normal
  04/17/2026 07 AM PDT           41.56            106         -              Normal
  04/17/2026 08 AM PDT           41.55            105         -              Normal
  04/17/2026 09 AM PDT           41.54            104         -              Normal
  04/17/2026 10 AM PDT           41.55            105         +              Normal
  04/17/2026 11 AM PDT           41.54            104         -              Normal
  04/17/2026 12 PM PDT           41.52            102         -              Normal
  04/17/2026 01 PM PDT           41.51            101         -              Normal
  04/17/2026 02 PM PDT           41.50            100         -              Normal
  04/17/2026 03 PM PDT           41.50            100         0              Normal
  04/17/2026 04 PM PDT           41.48             99         -              Normal
  04/17/2026 05 PM PDT           41.47             98         -              Normal
  04/17/2026 06 PM PDT           41.46             97         -              Normal
  04/17/2026 07 PM PDT           41.45             97         -              Normal
  04/17/2026 08 PM PDT           41.44             96         -              Normal
  04/17/2026 09 PM PDT           41.43             95         -              Normal
  04/17/2026 10 PM PDT           41.42             95         -              Normal
  04/17/2026 11 PM PDT           41.43             95         +              Normal
  04/18/2026 12 AM PDT           41.40             93         -              Normal
  04/18/2026 01 AM PDT           41.39             93         -              Normal
  04/18/2026 02 AM PDT           41.38             92         -              Normal
  04/18/2026 03 AM PDT           41.37             92         -              Normal
  04/18/2026 04 AM PDT           41.36             91         -              Normal
  04/18/2026 05 AM PDT           41.36             91         0              Normal
  04/18/2026 06 AM PDT           41.35             90         -              Normal
  04/18/2026 07 AM PDT           41.34             90         -              Normal
  04/18/2026 08 AM PDT           41.33             89         -              Normal
  04/18/2026 09 AM PDT           41.33             89         0              Normal
  04/18/2026 10 AM PDT           41.32             89         -              Normal
  04/18/2026 11 AM PDT           41.31             88         -              Normal
  04/18/2026 12 PM PDT           41.30             87         -              Normal
  04/18/2026 01 PM PDT           41.31             88         +              Normal
  04/18/2026 02 PM PDT           41.33             89         +              Normal
  04/18/2026 03 PM PDT           41.33             89         0              Normal
  04/18/2026 04 PM PDT           41.28             86         -              Normal
  04/18/2026 05 PM PDT           41.29             87         +              Normal
  04/18/2026 06 PM PDT           41.27             86         -              Normal
  04/18/2026 07 PM PDT           41.27             86         0              Normal
  04/18/2026 08 PM PDT           41.26             85         -              Normal
  04/18/2026 09 PM PDT           41.29             87         +              Normal
  04/18/2026 10 PM PDT           41.28             86         -              Normal
  04/18/2026 11 PM PDT           41.25             84         -              Normal
  04/19/2026 12 AM PDT           41.24             84         -              Normal
  04/19/2026 01 AM PDT           41.23             83         -              Normal
  04/19/2026 02 AM PDT           41.23             83         0              Normal
  04/19/2026 03 AM PDT           41.22             83         -              Normal
  04/19/2026 04 AM PDT           41.21             82         -              Normal
  04/19/2026 05 AM PDT           41.21             82         0              Normal
  04/19/2026 06 AM PDT           41.20             81         -              Normal
  04/19/2026 07 AM PDT           41.20             81         0              Normal
  04/19/2026 08 AM PDT           41.19             81         -              Normal
  04/19/2026 09 AM PDT           41.19             81         0              Normal
  04/19/2026 10 AM PDT           41.18             80         -              Normal
  04/19/2026 11 AM PDT           41.18             80         0              Normal
  04/19/2026 12 PM PDT           41.18             80         0              Normal
  04/19/2026 01 PM PDT           41.21             82         +              Normal
  04/19/2026 02 PM PDT           41.17             80         -              Normal
  04/19/2026 03 PM PDT           41.18             80         +              Normal
  04/19/2026 04 PM PDT           41.16             79         -              Normal
  04/19/2026 05 PM PDT           41.15             79         -              Normal
  04/19/2026 06 PM PDT           41.14             78         -              Normal
  04/19/2026 07 PM PDT           41.15             79         +              Normal
  04/19/2026 08 PM PDT           41.14             78         -              Normal
  04/19/2026 09 PM PDT           41.14             78         0              Normal
  04/19/2026 10 PM PDT           41.13             78         -              Normal
  04/19/2026 11 PM PDT           41.12             77         -              Normal
  04/20/2026 12 AM PDT           41.11             77         -              Normal
  04/20/2026 01 AM PDT           41.09             76         -              Normal
  04/20/2026 02 AM PDT           41.10             76         +              Normal
  04/20/2026 03 AM PDT           41.09             76         -              Normal
  04/20/2026 04 AM PDT           41.08             75         -              Normal
  04/20/2026 05 AM PDT           41.07             74         -              Normal
  04/20/2026 06 AM PDT           41.06             74         -              Normal
#
# FORECAST
#
# Date & Time  (Local)    Stage (Feet)     Flow (cfs)     Trend     Forecast Status
# ---------------------------------------------------------------------------------
  04/20/2026 07 AM PDT           41.05             73                        Normal
  04/20/2026 08 AM PDT           41.05             73         0              Normal
  04/20/2026 09 AM PDT           41.05             73         0              Normal
  04/20/2026 10 AM PDT           41.05             73         0              Normal
  04/20/2026 11 AM PDT           41.05             73         0              Normal
  04/20/2026 12 PM PDT           41.06             74         +              Normal
  04/20/2026 01 PM PDT           41.08             75         +              Normal
  04/20/2026 02 PM PDT           41.10             76         +              Normal
  04/20/2026 03 PM PDT           41.13             78         +              Normal
  04/20/2026 04 PM PDT           41.16             79         +              Normal
  04/20/2026 05 PM PDT           41.20             81         +              Normal
  04/20/2026 06 PM PDT           41.23             83         +              Normal
  04/20/2026 07 PM PDT           41.25             84         +              Normal
  04/20/2026 08 PM PDT           41.26             85         +              Normal
  04/20/2026 09 PM PDT           41.27             86         +              Normal
  04/20/2026 10 PM PDT           41.27             86         0              Normal
  04/20/2026 11 PM PDT           41.27             86         0              Normal
  04/21/2026 12 AM PDT           41.28             86         +              Normal
  04/21/2026 01 AM PDT           41.28             86         0              Normal
  04/21/2026 02 AM PDT           41.27             86         -              Normal
  04/21/2026 03 AM PDT           41.27             86         0              Normal
  04/21/2026 04 AM PDT           41.26             85         -              Normal
  04/21/2026 05 AM PDT           41.26             85         0              Normal
  04/21/2026 06 AM PDT           41.26             85         0              Normal
  04/21/2026 07 AM PDT           41.28             86         +              Normal
  04/21/2026 08 AM PDT           41.31             88         +              Normal
  04/21/2026 09 AM PDT           41.37             92         +              Normal
  04/21/2026 10 AM PDT           41.43             95         +              Normal
  04/21/2026 11 AM PDT           41.50            100         +              Normal
  04/21/2026 12 PM PDT           41.59            109         +              Normal
  04/21/2026 01 PM PDT           41.73            124         +              Normal
  04/21/2026 02 PM PDT           41.93            150         +              Normal
  04/21/2026 03 PM PDT           42.15            176         +              Normal
  04/21/2026 04 PM PDT           42.38            204         +              Normal
  04/21/2026 05 PM PDT           42.60            234         +              Normal
  04/21/2026 06 PM PDT           42.79            263         +              Normal
  04/21/2026 07 PM PDT           42.93            287         +              Normal
  04/21/2026 08 PM PDT           42.99            298         +              Normal
  04/21/2026 09 PM PDT           43.02            303         +              Normal
  04/21/2026 10 PM PDT           43.03            304         +              Normal
  04/21/2026 11 PM PDT           43.04            305         +              Normal
  04/22/2026 12 AM PDT           43.08            311         +              Normal
  04/22/2026 01 AM PDT           43.12            317         +              Normal
  04/22/2026 02 AM PDT           43.18            325         +              Normal
  04/22/2026 03 AM PDT           43.24            334         +              Normal
  04/22/2026 04 AM PDT           43.30            343         +              Normal
  04/22/2026 05 AM PDT           43.34            349         +              Normal
  04/22/2026 06 AM PDT           43.37            354         +              Normal
  04/22/2026 07 AM PDT           43.37            354         0              Normal
  04/22/2026 08 AM PDT           43.34            349         -              Normal
  04/22/2026 09 AM PDT           43.30            343         -              Normal
  04/22/2026 10 AM PDT           43.27            339         -              Normal
  04/22/2026 11 AM PDT           43.24            334         -              Normal
  04/22/2026 12 PM PDT           43.22            331         -              Normal
  04/22/2026 01 PM PDT           43.21            330         -              Normal
  04/22/2026 02 PM PDT           43.20            328         -              Normal
  04/22/2026 03 PM PDT           43.20            328         0              Normal
  04/22/2026 04 PM PDT           43.19            327         -              Normal
  04/22/2026 05 PM PDT           43.18            325         -              Normal
  04/22/2026 06 PM PDT           43.15            321         -              Normal
  04/22/2026 07 PM PDT           43.12            317         -              Normal
  04/22/2026 08 PM PDT           43.08            311         -              Normal
  04/22/2026 09 PM PDT           43.04            305         -              Normal
  04/22/2026 10 PM PDT           43.00            300         -              Normal
  04/22/2026 11 PM PDT           42.96            293         -              Normal
  04/23/2026 12 AM PDT           42.92            286         -              Normal
  04/23/2026 01 AM PDT           42.88            279         -              Normal
  04/23/2026 02 AM PDT           42.84            272         -              Normal
  04/23/2026 03 AM PDT           42.80            265         -              Normal
  04/23/2026 04 AM PDT           42.76            259         -              Normal
  04/23/2026 05 AM PDT           42.72            252         -              Normal
  04/23/2026 06 AM PDT           42.68            246         -              Normal
  04/23/2026 07 AM PDT           42.64            240         -              Normal
  04/23/2026 08 AM PDT           42.60            234         -              Normal
  04/23/2026 09 AM PDT           42.56            228         -              Normal
  04/23/2026 10 AM PDT           42.53            224         -              Normal
  04/23/2026 11 AM PDT           42.49            219         -              Normal
  04/23/2026 12 PM PDT           42.45            213         -              Normal
  04/23/2026 01 PM PDT           42.42            209         -              Normal
  04/23/2026 02 PM PDT           42.38            204         -              Normal
  04/23/2026 03 PM PDT           42.35            200         -              Normal
  04/23/2026 04 PM PDT           42.31            195         -              Normal
  04/23/2026 05 PM PDT           42.28            191         -              Normal
  04/23/2026 06 PM PDT           42.24            187         -              Normal
  04/23/2026 07 PM PDT           42.21            183         -              Normal
  04/23/2026 08 PM PDT           42.17            178         -              Normal
  04/23/2026 09 PM PDT           42.14            175         -              Normal
  04/23/2026 10 PM PDT           42.10            171         -              Normal
  04/23/2026 11 PM PDT           42.07            167         -              Normal
  04/24/2026 12 AM PDT           42.02            162         -              Normal
  04/24/2026 01 AM PDT           41.99            159         -              Normal
  04/24/2026 02 AM PDT           41.95            153         -              Normal
  04/24/2026 03 AM PDT           41.92            148         -              Normal
  04/24/2026 04 AM PDT           41.88            143         -              Normal
  04/24/2026 05 AM PDT           41.84            138         -              Normal
  04/24/2026 06 AM PDT           41.81            134         -              Normal
  04/24/2026 07 AM PDT           41.78            130         -              Normal
  04/24/2026 08 AM PDT           41.75            127         -              Normal
  04/24/2026 09 AM PDT           41.73            124         -              Normal
  04/24/2026 10 AM PDT           41.70            121         -              Normal
  04/24/2026 11 AM PDT           41.67            117         -              Normal
  04/24/2026 12 PM PDT           41.64            114         -              Normal
  04/24/2026 01 PM PDT           41.61            111         -              Normal
  04/24/2026 02 PM PDT           41.58            108         -              Normal
  04/24/2026 03 PM PDT           41.55            105         -              Normal
  04/24/2026 04 PM PDT           41.52            102         -              Normal
  04/24/2026 05 PM PDT           41.50            100         -              Normal
  04/24/2026 06 PM PDT           41.47             98         -              Normal
  04/24/2026 07 PM PDT           41.44             96         -              Normal
  04/24/2026 08 PM PDT           41.42             95         -              Normal
  04/24/2026 09 PM PDT           41.39             93         -              Normal
  04/24/2026 10 PM PDT           41.37             92         -              Normal
  04/24/2026 11 PM PDT           41.34             90         -              Normal
  04/25/2026 12 AM PDT           41.32             89         -              Normal
  04/25/2026 01 AM PDT           41.29             87         -              Normal
  04/25/2026 02 AM PDT           41.27             86         -              Normal
  04/25/2026 03 AM PDT           41.25             84         -              Normal
  04/25/2026 04 AM PDT           41.22             83         -              Normal
  04/25/2026 05 AM PDT           41.20             81         -              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.