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 21 2026 at 7:32 AM PDTNext Issuance: Apr 22 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:  04/21/2026 at 07:34 AM PDT
# Data Interval:  1 Hour
#
# Most Recent Date & Time of Maximum Observed:  04/21/2026 at 07:00 AM PDT
# Maximum Observed Stage:                       44.25 Feet
# Maximum Observed Flow:                        498 cfs
#
# Earliest Date & Time of Maximum Forecast:     04/22/2026 at 07:00 AM PDT
# Maximum Forecast Stage:                       45.67 Feet
# Maximum Forecast Flow:                        838 cfs
#
# OBSERVED
#
# Date & Time  (Local)    Stage (Feet)     Flow (cfs)     Trend     Observed Status
# ---------------------------------------------------------------------------------
  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           41.07             74         0              Normal
  04/20/2026 07 AM PDT           41.06             74         -              Normal
  04/20/2026 08 AM PDT           41.06             74         0              Normal
  04/20/2026 09 AM PDT           41.05             73         -              Normal
  04/20/2026 10 AM PDT           41.05             73         0              Normal
  04/20/2026 11 AM PDT           41.04             73         -              Normal
  04/20/2026 12 PM PDT           41.05             73         +              Normal
  04/20/2026 01 PM PDT           41.05             73         0              Normal
  04/20/2026 02 PM PDT           41.07             74         +              Normal
  04/20/2026 03 PM PDT           41.08             75         +              Normal
  04/20/2026 04 PM PDT           41.12             77         +              Normal
  04/20/2026 05 PM PDT           41.22             83         +              Normal
  04/20/2026 06 PM PDT           42.32            196         +              Normal
  04/20/2026 07 PM PDT           43.31            345         +              Normal
  04/20/2026 08 PM PDT           43.87            429         +              Normal
  04/20/2026 09 PM PDT           44.08            465         +              Normal
  04/20/2026 10 PM PDT           44.11            470         +              Normal
  04/20/2026 11 PM PDT           44.01            452         -              Normal
  04/21/2026 12 AM PDT           43.86            428         -              Normal
  04/21/2026 01 AM PDT           43.76            412         -              Normal
  04/21/2026 02 AM PDT           43.78            415         +              Normal
  04/21/2026 03 AM PDT           43.83            423         +              Normal
  04/21/2026 04 AM PDT           43.84            425         +              Normal
  04/21/2026 05 AM PDT           43.79            417         -              Normal
  04/21/2026 06 AM PDT           44.02            454         +              Normal
  04/21/2026 07 AM PDT           44.25            498         +              Normal
#
# FORECAST
#
# Date & Time  (Local)    Stage (Feet)     Flow (cfs)     Trend     Forecast Status
# ---------------------------------------------------------------------------------
  04/21/2026 08 AM PDT           44.47            543                        Normal
  04/21/2026 09 AM PDT           44.67            585         +              Normal
  04/21/2026 10 AM PDT           44.85            625         +              Normal
  04/21/2026 11 AM PDT           45.01            663         +              Normal
  04/21/2026 12 PM PDT           45.15            699         +              Normal
  04/21/2026 01 PM PDT           45.24            724         +              Normal
  04/21/2026 02 PM PDT           45.30            741         +              Normal
  04/21/2026 03 PM PDT           45.35            755         +              Normal
  04/21/2026 04 PM PDT           45.38            764         +              Normal
  04/21/2026 05 PM PDT           45.41            773         +              Normal
  04/21/2026 06 PM PDT           45.44            782         +              Normal
  04/21/2026 07 PM PDT           45.45            785         +              Normal
  04/21/2026 08 PM PDT           45.44            782         -              Normal
  04/21/2026 09 PM PDT           45.41            773         -              Normal
  04/21/2026 10 PM PDT           45.38            764         -              Normal
  04/21/2026 11 PM PDT           45.35            755         -              Normal
  04/22/2026 12 AM PDT           45.34            752         -              Normal
  04/22/2026 01 AM PDT           45.35            755         +              Normal
  04/22/2026 02 AM PDT           45.39            767         +              Normal
  04/22/2026 03 AM PDT           45.46            788         +              Normal
  04/22/2026 04 AM PDT           45.53            807         +              Normal
  04/22/2026 05 AM PDT           45.60            822         +              Normal
  04/22/2026 06 AM PDT           45.66            835         +              Normal
  04/22/2026 07 AM PDT           45.67            838         +              Normal
  04/22/2026 08 AM PDT           45.65            833         -              Normal
  04/22/2026 09 AM PDT           45.61            824         -              Normal
  04/22/2026 10 AM PDT           45.56            813         -              Normal
  04/22/2026 11 AM PDT           45.52            804         -              Normal
  04/22/2026 12 PM PDT           45.49            797         -              Normal
  04/22/2026 01 PM PDT           45.47            791         -              Normal
  04/22/2026 02 PM PDT           45.45            785         -              Normal
  04/22/2026 03 PM PDT           45.44            782         -              Normal
  04/22/2026 04 PM PDT           45.42            776         -              Normal
  04/22/2026 05 PM PDT           45.40            770         -              Normal
  04/22/2026 06 PM PDT           45.36            758         -              Normal
  04/22/2026 07 PM PDT           45.31            744         -              Normal
  04/22/2026 08 PM PDT           45.26            730         -              Normal
  04/22/2026 09 PM PDT           45.20            713         -              Normal
  04/22/2026 10 PM PDT           45.14            697         -              Normal
  04/22/2026 11 PM PDT           45.09            683         -              Normal
  04/23/2026 12 AM PDT           45.03            668         -              Normal
  04/23/2026 01 AM PDT           44.97            653         -              Normal
  04/23/2026 02 AM PDT           44.92            641         -              Normal
  04/23/2026 03 AM PDT           44.86            627         -              Normal
  04/23/2026 04 AM PDT           44.81            616         -              Normal
  04/23/2026 05 AM PDT           44.76            605         -              Normal
  04/23/2026 06 AM PDT           44.70            592         -              Normal
  04/23/2026 07 AM PDT           44.65            581         -              Normal
  04/23/2026 08 AM PDT           44.60            571         -              Normal
  04/23/2026 09 AM PDT           44.55            560         -              Normal
  04/23/2026 10 AM PDT           44.50            550         -              Normal
  04/23/2026 11 AM PDT           44.45            539         -              Normal
  04/23/2026 12 PM PDT           44.40            528         -              Normal
  04/23/2026 01 PM PDT           44.35            518         -              Normal
  04/23/2026 02 PM PDT           44.30            508         -              Normal
  04/23/2026 03 PM PDT           44.25            498         -              Normal
  04/23/2026 04 PM PDT           44.20            488         -              Normal
  04/23/2026 05 PM PDT           44.15            478         -              Normal
  04/23/2026 06 PM PDT           44.11            470         -              Normal
  04/23/2026 07 PM PDT           44.06            461         -              Normal
  04/23/2026 08 PM PDT           44.01            452         -              Normal
  04/23/2026 09 PM PDT           43.96            444         -              Normal
  04/23/2026 10 PM PDT           43.90            434         -              Normal
  04/23/2026 11 PM PDT           43.85            426         -              Normal
  04/24/2026 12 AM PDT           43.80            418         -              Normal
  04/24/2026 01 AM PDT           43.75            411         -              Normal
  04/24/2026 02 AM PDT           43.70            403         -              Normal
  04/24/2026 03 AM PDT           43.65            396         -              Normal
  04/24/2026 04 AM PDT           43.60            389         -              Normal
  04/24/2026 05 AM PDT           43.55            382         -              Normal
  04/24/2026 06 AM PDT           43.51            376         -              Normal
  04/24/2026 07 AM PDT           43.46            368         -              Normal
  04/24/2026 08 AM PDT           43.41            360         -              Normal
  04/24/2026 09 AM PDT           43.36            352         -              Normal
  04/24/2026 10 AM PDT           43.31            345         -              Normal
  04/24/2026 11 AM PDT           43.27            339         -              Normal
  04/24/2026 12 PM PDT           43.22            331         -              Normal
  04/24/2026 01 PM PDT           43.17            324         -              Normal
  04/24/2026 02 PM PDT           43.12            317         -              Normal
  04/24/2026 03 PM PDT           43.08            311         -              Normal
  04/24/2026 04 PM PDT           43.03            304         -              Normal
  04/24/2026 05 PM PDT           42.99            298         -              Normal
  04/24/2026 06 PM PDT           42.94            289         -              Normal
  04/24/2026 07 PM PDT           42.90            282         -              Normal
  04/24/2026 08 PM PDT           42.85            273         -              Normal
  04/24/2026 09 PM PDT           42.81            267         -              Normal
  04/24/2026 10 PM PDT           42.77            260         -              Normal
  04/24/2026 11 PM PDT           42.73            254         -              Normal
  04/25/2026 12 AM PDT           42.68            246         -              Normal
  04/25/2026 01 AM PDT           42.64            240         -              Normal
  04/25/2026 02 AM PDT           42.60            234         -              Normal
  04/25/2026 03 AM PDT           42.56            228         -              Normal
  04/25/2026 04 AM PDT           42.52            223         -              Normal
  04/25/2026 05 AM PDT           42.48            217         -              Normal
  04/25/2026 06 AM PDT           42.44            212         -              Normal
  04/25/2026 07 AM PDT           42.40            206         -              Normal
  04/25/2026 08 AM PDT           42.36            201         -              Normal
  04/25/2026 09 AM PDT           42.32            196         -              Normal
  04/25/2026 10 AM PDT           42.29            193         -              Normal
  04/25/2026 11 AM PDT           42.25            188         -              Normal
  04/25/2026 12 PM PDT           42.21            183         -              Normal
  04/25/2026 01 PM PDT           42.18            180         -              Normal
  04/25/2026 02 PM PDT           42.14            175         -              Normal
  04/25/2026 03 PM PDT           42.10            171         -              Normal
  04/25/2026 04 PM PDT           42.07            167         -              Normal
  04/25/2026 05 PM PDT           42.04            164         -              Normal
  04/25/2026 06 PM PDT           42.00            160         -              Normal
  04/25/2026 07 PM PDT           41.97            156         -              Normal
  04/25/2026 08 PM PDT           41.93            150         -              Normal
  04/25/2026 09 PM PDT           41.90            146         -              Normal
  04/25/2026 10 PM PDT           41.87            142         -              Normal
  04/25/2026 11 PM PDT           41.84            138         -              Normal
  04/26/2026 12 AM PDT           41.81            134         -              Normal
  04/26/2026 01 AM PDT           41.77            129         -              Normal
  04/26/2026 02 AM PDT           41.74            125         -              Normal
  04/26/2026 03 AM PDT           41.71            122         -              Normal
  04/26/2026 04 AM PDT           41.69            120         -              Normal
  04/26/2026 05 AM PDT           41.66            116         -              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.