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 Feet
Location: Sonoma County in CaliforniaBulletin Group: Russian NapaRiver Group: Russian Napa
Issuance Time: Jan 02 2026 at 1:56 PM PSTNext Issuance: Jan 03 2026 at 9:00 AM PST
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:  01/02/2026 at 01:57 PM PST
# Data Interval:  1 Hour
#
# Most Recent Date & Time of Maximum Observed:  12/28/2025 at 01:00 PM PST
# Maximum Observed Stage:                       50.33 Feet
# Maximum Observed Flow:                        2239 cfs
#
# Earliest Date & Time of Maximum Forecast:     01/06/2026 at 05:00 AM PST
# Maximum Forecast Stage:                       52.50 Feet
# Maximum Forecast Flow:                        3200 cfs
#
# OBSERVED
#
# Date & Time  (Local)    Stage (Feet)     Flow (cfs)     Trend     Observed Status
# ---------------------------------------------------------------------------------
  12/28/2025 01 PM PST           50.33           2239                        Normal
  12/28/2025 02 PM PST           50.19           2190         -              Normal
  12/28/2025 03 PM PST           50.03           2135         -              Normal
  12/28/2025 04 PM PST           49.85           2071         -              Normal
  12/28/2025 05 PM PST           49.68           2011         -              Normal
  12/28/2025 06 PM PST           49.51           1953         -              Normal
  12/28/2025 07 PM PST           49.36           1901         -              Normal
  12/28/2025 08 PM PST           49.21           1850         -              Normal
  12/28/2025 09 PM PST           49.05           1796         -              Normal
  12/28/2025 10 PM PST           48.90           1743         -              Normal
  12/28/2025 11 PM PST           48.75           1688         -              Normal
  12/29/2025 12 AM PST           48.61           1638         -              Normal
  12/29/2025 01 AM PST           48.47           1590         -              Normal
  12/29/2025 02 AM PST           48.35           1550         -              Normal
  12/29/2025 03 AM PST           48.20           1502         -              Normal
  12/29/2025 04 AM PST           48.08           1465         -              Normal
  12/29/2025 05 AM PST           47.96           1430         -              Normal
  12/29/2025 06 AM PST           47.84           1399         -              Normal
  12/29/2025 07 AM PST           47.72           1369         -              Normal
  12/29/2025 08 AM PST           47.60           1339         -              Normal
  12/29/2025 09 AM PST           47.49           1312         -              Normal
  12/29/2025 10 AM PST           47.39           1282         -              Normal
  12/29/2025 11 AM PST           47.28           1249         -              Normal
  12/29/2025 12 PM PST           47.17           1218         -              Normal
  12/29/2025 01 PM PST           47.05           1184         -              Normal
  12/29/2025 02 PM PST           46.95           1156         -              Normal
  12/29/2025 03 PM PST           46.85           1130         -              Normal
  12/29/2025 04 PM PST           46.75           1103         -              Normal
  12/29/2025 05 PM PST           46.67           1083         -              Normal
  12/29/2025 06 PM PST           46.56           1055         -              Normal
  12/29/2025 07 PM PST           46.47           1032         -              Normal
  12/29/2025 08 PM PST           46.38           1009         -              Normal
  12/29/2025 09 PM PST           46.31            991         -              Normal
  12/29/2025 10 PM PST           46.23            971         -              Normal
  12/29/2025 11 PM PST           46.15            951         -              Normal
  12/30/2025 12 AM PST           46.04            924         -              Normal
  12/30/2025 01 AM PST           45.99            913         -              Normal
  12/30/2025 02 AM PST           45.91            893         -              Normal
  12/30/2025 03 AM PST           45.84            877         -              Normal
  12/30/2025 04 AM PST           45.77            860         -              Normal
  12/30/2025 05 AM PST           45.70            844         -              Normal
  12/30/2025 06 AM PST           45.63            829         -              Normal
  12/30/2025 07 AM PST           45.57            815         -              Normal
  12/30/2025 08 AM PST           45.50            800         -              Normal
  12/30/2025 09 AM PST           45.44            782         -              Normal
  12/30/2025 10 AM PST           45.36            758         -              Normal
  12/30/2025 11 AM PST           45.30            741         -              Normal
  12/30/2025 12 PM PST           45.24            724         -              Normal
  12/30/2025 01 PM PST           45.18            708         -              Normal
  12/30/2025 02 PM PST           45.10            686         -              Normal
  12/30/2025 03 PM PST           45.05            673         -              Normal
  12/30/2025 04 PM PST           45.00            660         -              Normal
  12/30/2025 05 PM PST           44.94            646         -              Normal
  12/30/2025 06 PM PST           44.88            632         -              Normal
  12/30/2025 07 PM PST           44.83            620         -              Normal
  12/30/2025 08 PM PST           44.78            609         -              Normal
  12/30/2025 09 PM PST           44.73            598         -              Normal
  12/30/2025 10 PM PST           44.68            587         -              Normal
  12/30/2025 11 PM PST           44.63            577         -              Normal
  12/31/2025 12 AM PST           44.58            566         -              Normal
  12/31/2025 01 AM PST           44.53            556         -              Normal
  12/31/2025 02 AM PST           44.48            546         -              Normal
  12/31/2025 03 AM PST           44.44            537         -              Normal
  12/31/2025 04 AM PST           44.40            528         -              Normal
  12/31/2025 05 AM PST           44.35            518         -              Normal
  12/31/2025 06 AM PST           44.30            508         -              Normal
  12/31/2025 07 AM PST           44.26            500         -              Normal
  12/31/2025 08 AM PST           44.22            492         -              Normal
  12/31/2025 09 AM PST           44.18            484         -              Normal
  12/31/2025 10 AM PST           44.14            476         -              Normal
  12/31/2025 11 AM PST           44.10            469         -              Normal
  12/31/2025 12 PM PST           44.06            461         -              Normal
  12/31/2025 01 PM PST           44.02            454         -              Normal
  12/31/2025 02 PM PST           44.03            455         +              Normal
  12/31/2025 03 PM PST           43.99            448         -              Normal
  12/31/2025 04 PM PST           43.93            439         -              Normal
  12/31/2025 05 PM PST           43.91            436         -              Normal
  12/31/2025 06 PM PST           43.89            432         -              Normal
  12/31/2025 07 PM PST           43.87            429         -              Normal
  12/31/2025 08 PM PST           43.86            428         -              Normal
  12/31/2025 09 PM PST           43.88            431         +              Normal
  12/31/2025 10 PM PST           43.92            437         +              Normal
  12/31/2025 11 PM PST           44.08            465         +              Normal
  01/01/2026 12 AM PST           44.28            504         +              Normal
  01/01/2026 01 AM PST           44.49            548         +              Normal
  01/01/2026 02 AM PST           44.74            600         +              Normal
  01/01/2026 03 AM PST           44.95            648         +              Normal
  01/01/2026 04 AM PST           45.19            710         +              Normal
  01/01/2026 05 AM PST           45.44            782         +              Normal
  01/01/2026 06 AM PST           45.69            842         +              Normal
  01/01/2026 07 AM PST           45.88            886         +              Normal
  01/01/2026 08 AM PST           46.04            924         +              Normal
  01/01/2026 09 AM PST           46.18            958         +              Normal
  01/01/2026 10 AM PST           46.32            993         +              Normal
  01/01/2026 11 AM PST           46.44           1024         +              Normal
  01/01/2026 12 PM PST           46.55           1052         +              Normal
  01/01/2026 01 PM PST           46.65           1078         +              Normal
  01/01/2026 02 PM PST           46.74           1101         +              Normal
  01/01/2026 03 PM PST           46.81           1119         +              Normal
  01/01/2026 04 PM PST           46.87           1135         +              Normal
  01/01/2026 05 PM PST           46.94           1154         +              Normal
  01/01/2026 06 PM PST           47.00           1170         +              Normal
  01/01/2026 07 PM PST           47.06           1187         +              Normal
  01/01/2026 08 PM PST           47.13           1206         +              Normal
  01/01/2026 09 PM PST           47.21           1229         +              Normal
  01/01/2026 10 PM PST           47.34           1267         +              Normal
  01/01/2026 11 PM PST           47.56           1329         +              Normal
  01/02/2026 12 AM PST           47.75           1376         +              Normal
  01/02/2026 01 AM PST           47.92           1419         +              Normal
  01/02/2026 02 AM PST           48.04           1452         +              Normal
  01/02/2026 03 AM PST           48.15           1486         +              Normal
  01/02/2026 04 AM PST           48.22           1509         +              Normal
  01/02/2026 05 AM PST           48.29           1531         +              Normal
  01/02/2026 06 AM PST           48.34           1547         +              Normal
  01/02/2026 07 AM PST           48.36           1554         +              Normal
  01/02/2026 08 AM PST           48.37           1557         +              Normal
  01/02/2026 09 AM PST           48.38           1560         +              Normal
  01/02/2026 10 AM PST           48.37           1557         -              Normal
  01/02/2026 11 AM PST           48.36           1554         -              Normal
  01/02/2026 12 PM PST           48.35           1550         -              Normal
  01/02/2026 01 PM PST           48.33           1544         -              Normal
#
# FORECAST
#
# Date & Time  (Local)    Stage (Feet)     Flow (cfs)     Trend     Forecast Status
# ---------------------------------------------------------------------------------
  01/02/2026 02 PM PST           48.29           1531                        Normal
  01/02/2026 03 PM PST           48.24           1515         -              Normal
  01/02/2026 04 PM PST           48.17           1493         -              Normal
  01/02/2026 05 PM PST           48.09           1468         -              Normal
  01/02/2026 06 PM PST           48.00           1440         -              Normal
  01/02/2026 07 PM PST           47.90           1414         -              Normal
  01/02/2026 08 PM PST           47.80           1389         -              Normal
  01/02/2026 09 PM PST           47.70           1364         -              Normal
  01/02/2026 10 PM PST           47.64           1349         -              Normal
  01/02/2026 11 PM PST           47.67           1356         +              Normal
  01/03/2026 12 AM PST           47.80           1389         +              Normal
  01/03/2026 01 AM PST           47.99           1437         +              Normal
  01/03/2026 02 AM PST           48.21           1505         +              Normal
  01/03/2026 03 AM PST           48.45           1583         +              Normal
  01/03/2026 04 AM PST           48.73           1681         +              Normal
  01/03/2026 05 AM PST           49.01           1783         +              Normal
  01/03/2026 06 AM PST           49.26           1867         +              Normal
  01/03/2026 07 AM PST           49.48           1943         +              Normal
  01/03/2026 08 AM PST           49.69           2015         +              Normal
  01/03/2026 09 AM PST           49.87           2078         +              Normal
  01/03/2026 10 AM PST           50.02           2132         +              Normal
  01/03/2026 11 AM PST           50.14           2173         +              Normal
  01/03/2026 12 PM PST           50.25           2211         +              Normal
  01/03/2026 01 PM PST           50.32           2236         +              Normal
  01/03/2026 02 PM PST           50.39           2260         +              Normal
  01/03/2026 03 PM PST           50.44           2278         +              Normal
  01/03/2026 04 PM PST           50.48           2293         +              Normal
  01/03/2026 05 PM PST           50.51           2304         +      Action/Monitor
  01/03/2026 06 PM PST           50.53           2312         +      Action/Monitor
  01/03/2026 07 PM PST           50.54           2315         +      Action/Monitor
  01/03/2026 08 PM PST           50.54           2315         0      Action/Monitor
  01/03/2026 09 PM PST           50.54           2315         0      Action/Monitor
  01/03/2026 10 PM PST           50.54           2315         0      Action/Monitor
  01/03/2026 11 PM PST           50.52           2308         -      Action/Monitor
  01/04/2026 12 AM PST           50.50           2300         -      Action/Monitor
  01/04/2026 01 AM PST           50.48           2293         -              Normal
  01/04/2026 02 AM PST           50.45           2282         -              Normal
  01/04/2026 03 AM PST           50.44           2278         -              Normal
  01/04/2026 04 AM PST           50.47           2289         +              Normal
  01/04/2026 05 AM PST           50.54           2315         +      Action/Monitor
  01/04/2026 06 AM PST           50.63           2351         +      Action/Monitor
  01/04/2026 07 AM PST           50.74           2394         +      Action/Monitor
  01/04/2026 08 AM PST           50.87           2447         +      Action/Monitor
  01/04/2026 09 AM PST           51.02           2508         +      Action/Monitor
  01/04/2026 10 AM PST           51.16           2563         +      Action/Monitor
  01/04/2026 11 AM PST           51.31           2622         +      Action/Monitor
  01/04/2026 12 PM PST           51.48           2692         +      Action/Monitor
  01/04/2026 01 PM PST           51.63           2763         +      Action/Monitor
  01/04/2026 02 PM PST           51.78           2838         +      Action/Monitor
  01/04/2026 03 PM PST           51.92           2909         +      Action/Monitor
  01/04/2026 04 PM PST           52.04           2969         +      Action/Monitor
  01/04/2026 05 PM PST           52.14           3018         +      Action/Monitor
  01/04/2026 06 PM PST           52.22           3058         +      Action/Monitor
  01/04/2026 07 PM PST           52.30           3098         +      Action/Monitor
  01/04/2026 08 PM PST           52.36           3128         +      Action/Monitor
  01/04/2026 09 PM PST           52.40           3149         +      Action/Monitor
  01/04/2026 10 PM PST           52.41           3154         +      Action/Monitor
  01/04/2026 11 PM PST           52.39           3143         -      Action/Monitor
  01/05/2026 12 AM PST           52.35           3123         -      Action/Monitor
  01/05/2026 01 AM PST           52.29           3093         -      Action/Monitor
  01/05/2026 02 AM PST           52.22           3058         -      Action/Monitor
  01/05/2026 03 AM PST           52.14           3018         -      Action/Monitor
  01/05/2026 04 AM PST           52.07           2984         -      Action/Monitor
  01/05/2026 05 AM PST           51.99           2945         -      Action/Monitor
  01/05/2026 06 AM PST           51.91           2904         -      Action/Monitor
  01/05/2026 07 AM PST           51.85           2873         -      Action/Monitor
  01/05/2026 08 AM PST           51.78           2838         -      Action/Monitor
  01/05/2026 09 AM PST           51.73           2813         -      Action/Monitor
  01/05/2026 10 AM PST           51.69           2793         -      Action/Monitor
  01/05/2026 11 AM PST           51.66           2778         -      Action/Monitor
  01/05/2026 12 PM PST           51.63           2763         -      Action/Monitor
  01/05/2026 01 PM PST           51.62           2758         -      Action/Monitor
  01/05/2026 02 PM PST           51.61           2753         -      Action/Monitor
  01/05/2026 03 PM PST           51.62           2758         +      Action/Monitor
  01/05/2026 04 PM PST           51.66           2778         +      Action/Monitor
  01/05/2026 05 PM PST           51.73           2813         +      Action/Monitor
  01/05/2026 06 PM PST           51.80           2848         +      Action/Monitor
  01/05/2026 07 PM PST           51.89           2893         +      Action/Monitor
  01/05/2026 08 PM PST           51.99           2945         +      Action/Monitor
  01/05/2026 09 PM PST           52.08           2989         +      Action/Monitor
  01/05/2026 10 PM PST           52.17           3033         +      Action/Monitor
  01/05/2026 11 PM PST           52.24           3068         +      Action/Monitor
  01/06/2026 12 AM PST           52.31           3103         +      Action/Monitor
  01/06/2026 01 AM PST           52.37           3133         +      Action/Monitor
  01/06/2026 02 AM PST           52.43           3164         +      Action/Monitor
  01/06/2026 03 AM PST           52.47           3184         +      Action/Monitor
  01/06/2026 04 AM PST           52.49           3195         +      Action/Monitor
  01/06/2026 05 AM PST           52.50           3200         +      Action/Monitor
  01/06/2026 06 AM PST           52.49           3195         -      Action/Monitor
  01/06/2026 07 AM PST           52.48           3190         -      Action/Monitor
  01/06/2026 08 AM PST           52.45           3174         -      Action/Monitor
  01/06/2026 09 AM PST           52.41           3154         -      Action/Monitor
  01/06/2026 10 AM PST           52.37           3133         -      Action/Monitor
  01/06/2026 11 AM PST           52.31           3103         -      Action/Monitor
  01/06/2026 12 PM PST           52.25           3073         -      Action/Monitor
  01/06/2026 01 PM PST           52.18           3038         -      Action/Monitor
  01/06/2026 02 PM PST           52.11           3003         -      Action/Monitor
  01/06/2026 03 PM PST           52.03           2964         -      Action/Monitor
  01/06/2026 04 PM PST           51.95           2924         -      Action/Monitor
  01/06/2026 05 PM PST           51.87           2883         -      Action/Monitor
  01/06/2026 06 PM PST           51.77           2833         -      Action/Monitor
  01/06/2026 07 PM PST           51.68           2788         -      Action/Monitor
  01/06/2026 08 PM PST           51.58           2739         -      Action/Monitor
  01/06/2026 09 PM PST           51.49           2696         -      Action/Monitor
  01/06/2026 10 PM PST           51.38           2651         -      Action/Monitor
  01/06/2026 11 PM PST           51.28           2610         -      Action/Monitor
  01/07/2026 12 AM PST           51.17           2566         -      Action/Monitor
  01/07/2026 01 AM PST           51.06           2523         -      Action/Monitor
  01/07/2026 02 AM PST           50.95           2479         -      Action/Monitor
  01/07/2026 03 AM PST           50.83           2430         -      Action/Monitor
  01/07/2026 04 AM PST           50.71           2382         -      Action/Monitor
#
# 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.