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

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COSUMNES RIVER - MCCONNELL (MCNC1)
Latitude: 38.36º NLongitude: 121.34º WElevation: 5 Feet
Location: Sacramento County in CaliforniaBulletin Group: San JoaquinRiver Group: North San Joaquin
Issuance Time: Jan 06 2026 at 1:42 PM PSTNext Issuance: Jan 07 2026 at 9:00 AM PST
Action/Monitor: 38.5 FeetMinor Flood: 44.5 FeetModerate Flood: 53.4 FeetMajor Flood: 53.5 Feet
Please Note:

# Tabular Observed and Forecast Hydrograph Information
#
# Location: Cosumnes River - McConnell (MCNC1)
#
# File Generation Time:  01/06/2026 at 01:43 PM PST
# Data Interval:  1 Hour
#
# Most Recent Date & Time of Maximum Observed:  01/05/2026 at 08:00 AM PST
# Maximum Observed Stage:                       43.32 Feet
#
# Earliest Date & Time of Maximum Forecast:     01/06/2026 at 02:00 PM PST
# Maximum Forecast Stage:                       39.27 Feet
#
# OBSERVED
#
# Date & Time  (Local)    Stage (Feet)     Trend     Observed Status
# ------------------------------------------------------------------
  01/01/2026 01 PM PST           28.89                        Normal
  01/01/2026 02 PM PST           28.97         +              Normal
  01/01/2026 03 PM PST           29.12         +              Normal
  01/01/2026 04 PM PST           29.35         +              Normal
  01/01/2026 05 PM PST           29.68         +              Normal
  01/01/2026 06 PM PST           29.90         +              Normal
  01/01/2026 07 PM PST           30.04         +              Normal
  01/01/2026 08 PM PST           30.12         +              Normal
  01/01/2026 09 PM PST           30.16         +              Normal
  01/01/2026 10 PM PST           30.23         +              Normal
  01/01/2026 11 PM PST           30.30         +              Normal
  01/02/2026 12 AM PST           30.48         +              Normal
  01/02/2026 01 AM PST           30.74         +              Normal
  01/02/2026 02 AM PST           31.11         +              Normal
  01/02/2026 03 AM PST           31.49         +              Normal
  01/02/2026 04 AM PST           31.90         +              Normal
  01/02/2026 05 AM PST           32.33         +              Normal
  01/02/2026 06 AM PST           32.83         +              Normal
  01/02/2026 07 AM PST           33.40         +              Normal
  01/02/2026 08 AM PST           33.98         +              Normal
  01/02/2026 09 AM PST           34.47         +              Normal
  01/02/2026 10 AM PST           34.79         +              Normal
  01/02/2026 11 AM PST           34.98         +              Normal
  01/02/2026 12 PM PST           35.07         +              Normal
  01/02/2026 01 PM PST           35.06         -              Normal
  01/02/2026 02 PM PST           34.99         -              Normal
  01/02/2026 03 PM PST           34.92         -              Normal
  01/02/2026 04 PM PST           34.81         -              Normal
  01/02/2026 05 PM PST           34.68         -              Normal
  01/02/2026 06 PM PST           34.52         -              Normal
  01/02/2026 07 PM PST           34.36         -              Normal
  01/02/2026 08 PM PST           34.17         -              Normal
  01/02/2026 09 PM PST           34.00         -              Normal
  01/02/2026 10 PM PST           33.81         -              Normal
  01/02/2026 11 PM PST           33.65         -              Normal
  01/03/2026 12 AM PST           33.48         -              Normal
  01/03/2026 01 AM PST           33.31         -              Normal
  01/03/2026 02 AM PST           33.17         -              Normal
  01/03/2026 03 AM PST           33.05         -              Normal
  01/03/2026 04 AM PST           32.90         -              Normal
  01/03/2026 05 AM PST           32.79         -              Normal
  01/03/2026 06 AM PST           32.67         -              Normal
  01/03/2026 07 AM PST           32.57         -              Normal
  01/03/2026 08 AM PST           32.51         -              Normal
  01/03/2026 09 AM PST           32.51         0              Normal
  01/03/2026 10 AM PST           32.59         +              Normal
  01/03/2026 11 AM PST           32.77         +              Normal
  01/03/2026 12 PM PST           33.05         +              Normal
  01/03/2026 01 PM PST           33.41         +              Normal
  01/03/2026 02 PM PST           33.79         +              Normal
  01/03/2026 03 PM PST           34.15         +              Normal
  01/03/2026 04 PM PST           34.48         +              Normal
  01/03/2026 05 PM PST           34.79         +              Normal
  01/03/2026 06 PM PST           35.00         +              Normal
  01/03/2026 07 PM PST           35.29         +              Normal
  01/03/2026 08 PM PST           35.62         +              Normal
  01/03/2026 09 PM PST           36.01         +              Normal
  01/03/2026 10 PM PST           36.48         +              Normal
  01/03/2026 11 PM PST           37.02         +              Normal
  01/04/2026 12 AM PST           37.52         +              Normal
  01/04/2026 01 AM PST           38.06         +              Normal
  01/04/2026 02 AM PST           38.57         +      Action/Monitor
  01/04/2026 03 AM PST           39.08         +      Action/Monitor
  01/04/2026 04 AM PST           39.54         +      Action/Monitor
  01/04/2026 05 AM PST           40.01         +      Action/Monitor
  01/04/2026 06 AM PST           40.35         +      Action/Monitor
  01/04/2026 07 AM PST           40.55         +      Action/Monitor
  01/04/2026 08 AM PST           40.72         +      Action/Monitor
  01/04/2026 09 AM PST           40.73         +      Action/Monitor
  01/04/2026 10 AM PST           40.74         +      Action/Monitor
  01/04/2026 11 AM PST           40.71         -      Action/Monitor
  01/04/2026 12 PM PST           40.76         +      Action/Monitor
  01/04/2026 01 PM PST           40.85         +      Action/Monitor
  01/04/2026 02 PM PST           40.89         +      Action/Monitor
  01/04/2026 03 PM PST           41.01         +      Action/Monitor
  01/04/2026 04 PM PST           41.13         +      Action/Monitor
  01/04/2026 05 PM PST           41.23         +      Action/Monitor
  01/04/2026 06 PM PST           41.36         +      Action/Monitor
  01/04/2026 07 PM PST           41.54         +      Action/Monitor
  01/04/2026 08 PM PST           41.79         +      Action/Monitor
  01/04/2026 09 PM PST           42.07         +      Action/Monitor
  01/04/2026 10 PM PST           42.38         +      Action/Monitor
  01/04/2026 11 PM PST           42.50         +      Action/Monitor
  01/05/2026 12 AM PST           42.77         +      Action/Monitor
  01/05/2026 01 AM PST           42.84         +      Action/Monitor
  01/05/2026 02 AM PST           43.01         +      Action/Monitor
  01/05/2026 03 AM PST           43.07         +      Action/Monitor
  01/05/2026 04 AM PST           43.15         +      Action/Monitor
  01/05/2026 05 AM PST           43.22         +      Action/Monitor
  01/05/2026 06 AM PST           43.23         +      Action/Monitor
  01/05/2026 07 AM PST           43.21         -      Action/Monitor
  01/05/2026 08 AM PST           43.32         +      Action/Monitor
  01/05/2026 09 AM PST           43.31         -      Action/Monitor
  01/05/2026 10 AM PST           43.23         -      Action/Monitor
  01/05/2026 11 AM PST           43.20         -      Action/Monitor
  01/05/2026 12 PM PST           43.18         -      Action/Monitor
  01/05/2026 01 PM PST           43.10         -      Action/Monitor
  01/05/2026 02 PM PST           43.05         -      Action/Monitor
  01/05/2026 03 PM PST           42.99         -      Action/Monitor
  01/05/2026 04 PM PST           42.82         -      Action/Monitor
  01/05/2026 05 PM PST           42.90         +      Action/Monitor
  01/05/2026 06 PM PST           42.80         -      Action/Monitor
  01/05/2026 07 PM PST           42.73         -      Action/Monitor
  01/05/2026 08 PM PST           42.54         -      Action/Monitor
  01/05/2026 09 PM PST           42.42         -      Action/Monitor
  01/05/2026 10 PM PST           42.28         -      Action/Monitor
  01/05/2026 11 PM PST           42.16         -      Action/Monitor
  01/06/2026 12 AM PST           41.98         -      Action/Monitor
  01/06/2026 01 AM PST           41.79         -      Action/Monitor
  01/06/2026 02 AM PST           41.56         -      Action/Monitor
  01/06/2026 03 AM PST           41.37         -      Action/Monitor
  01/06/2026 04 AM PST           41.13         -      Action/Monitor
  01/06/2026 05 AM PST           40.91         -      Action/Monitor
  01/06/2026 06 AM PST           40.66         -      Action/Monitor
  01/06/2026 07 AM PST           40.44         -      Action/Monitor
  01/06/2026 08 AM PST           40.23         -      Action/Monitor
  01/06/2026 09 AM PST           40.06         -      Action/Monitor
  01/06/2026 10 AM PST           39.93         -      Action/Monitor
  01/06/2026 11 AM PST           39.79         -      Action/Monitor
  01/06/2026 12 PM PST           39.61         -      Action/Monitor
  01/06/2026 01 PM PST           39.45         -      Action/Monitor
#
# FORECAST
#
# Date & Time  (Local)    Stage (Feet)     Trend     Forecast Status
# ------------------------------------------------------------------
  01/06/2026 02 PM PST           39.27                Action/Monitor
  01/06/2026 03 PM PST           39.10         -      Action/Monitor
  01/06/2026 04 PM PST           38.92         -      Action/Monitor
  01/06/2026 05 PM PST           38.73         -      Action/Monitor
  01/06/2026 06 PM PST           38.54         -      Action/Monitor
  01/06/2026 07 PM PST           38.36         -              Normal
  01/06/2026 08 PM PST           38.17         -              Normal
  01/06/2026 09 PM PST           37.99         -              Normal
  01/06/2026 10 PM PST           37.81         -              Normal
  01/06/2026 11 PM PST           37.64         -              Normal
  01/07/2026 12 AM PST           37.46         -              Normal
  01/07/2026 01 AM PST           37.29         -              Normal
  01/07/2026 02 AM PST           37.11         -              Normal
  01/07/2026 03 AM PST           36.93         -              Normal
  01/07/2026 04 AM PST           36.75         -              Normal
  01/07/2026 05 AM PST           36.57         -              Normal
  01/07/2026 06 AM PST           36.38         -              Normal
  01/07/2026 07 AM PST           36.18         -              Normal
  01/07/2026 08 AM PST           35.99         -              Normal
  01/07/2026 09 AM PST           35.80         -              Normal
  01/07/2026 10 AM PST           35.63         -              Normal
  01/07/2026 11 AM PST           35.45         -              Normal
  01/07/2026 12 PM PST           35.28         -              Normal
  01/07/2026 01 PM PST           35.12         -              Normal
  01/07/2026 02 PM PST           34.96         -              Normal
  01/07/2026 03 PM PST           34.80         -              Normal
  01/07/2026 04 PM PST           34.65         -              Normal
  01/07/2026 05 PM PST           34.48         -              Normal
  01/07/2026 06 PM PST           34.33         -              Normal
  01/07/2026 07 PM PST           34.18         -              Normal
  01/07/2026 08 PM PST           34.04         -              Normal
  01/07/2026 09 PM PST           33.91         -              Normal
  01/07/2026 10 PM PST           33.77         -              Normal
  01/07/2026 11 PM PST           33.63         -              Normal
  01/08/2026 12 AM PST           33.50         -              Normal
  01/08/2026 01 AM PST           33.37         -              Normal
  01/08/2026 02 AM PST           33.25         -              Normal
  01/08/2026 03 AM PST           33.13         -              Normal
  01/08/2026 04 AM PST           33.01         -              Normal
  01/08/2026 05 AM PST           32.91         -              Normal
  01/08/2026 06 AM PST           32.82         -              Normal
  01/08/2026 07 AM PST           32.73         -              Normal
  01/08/2026 08 AM PST           32.64         -              Normal
  01/08/2026 09 AM PST           32.55         -              Normal
  01/08/2026 10 AM PST           32.47         -              Normal
  01/08/2026 11 AM PST           32.39         -              Normal
  01/08/2026 12 PM PST           32.32         -              Normal
  01/08/2026 01 PM PST           32.24         -              Normal
  01/08/2026 02 PM PST           32.17         -              Normal
  01/08/2026 03 PM PST           32.10         -              Normal
  01/08/2026 04 PM PST           32.04         -              Normal
  01/08/2026 05 PM PST           31.98         -              Normal
  01/08/2026 06 PM PST           31.92         -              Normal
  01/08/2026 07 PM PST           31.86         -              Normal
  01/08/2026 08 PM PST           31.81         -              Normal
  01/08/2026 09 PM PST           31.75         -              Normal
  01/08/2026 10 PM PST           31.70         -              Normal
  01/08/2026 11 PM PST           31.66         -              Normal
  01/09/2026 12 AM PST           31.61         -              Normal
  01/09/2026 01 AM PST           31.57         -              Normal
  01/09/2026 02 AM PST           31.52         -              Normal
  01/09/2026 03 AM PST           31.48         -              Normal
  01/09/2026 04 AM PST           31.44         -              Normal
  01/09/2026 05 AM PST           31.41         -              Normal
  01/09/2026 06 AM PST           31.37         -              Normal
  01/09/2026 07 AM PST           31.34         -              Normal
  01/09/2026 08 AM PST           31.30         -              Normal
  01/09/2026 09 AM PST           31.27         -              Normal
  01/09/2026 10 AM PST           31.24         -              Normal
  01/09/2026 11 AM PST           31.22         -              Normal
  01/09/2026 12 PM PST           31.19         -              Normal
  01/09/2026 01 PM PST           31.17         -              Normal
  01/09/2026 02 PM PST           31.14         -              Normal
  01/09/2026 03 PM PST           31.12         -              Normal
  01/09/2026 04 PM PST           31.10         -              Normal
  01/09/2026 05 PM PST           31.08         -              Normal
  01/09/2026 06 PM PST           31.06         -              Normal
  01/09/2026 07 PM PST           31.05         -              Normal
  01/09/2026 08 PM PST           31.03         -              Normal
  01/09/2026 09 PM PST           30.99         -              Normal
  01/09/2026 10 PM PST           30.95         -              Normal
  01/09/2026 11 PM PST           30.91         -              Normal
  01/10/2026 12 AM PST           30.87         -              Normal
  01/10/2026 01 AM PST           30.83         -              Normal
  01/10/2026 02 AM PST           30.79         -              Normal
  01/10/2026 03 AM PST           30.75         -              Normal
  01/10/2026 04 AM PST           30.72         -              Normal
  01/10/2026 05 AM PST           30.68         -              Normal
  01/10/2026 06 AM PST           30.65         -              Normal
  01/10/2026 07 AM PST           30.61         -              Normal
  01/10/2026 08 AM PST           30.58         -              Normal
  01/10/2026 09 AM PST           30.55         -              Normal
  01/10/2026 10 AM PST           30.52         -              Normal
  01/10/2026 11 AM PST           30.49         -              Normal
  01/10/2026 12 PM PST           30.45         -              Normal
  01/10/2026 01 PM PST           30.43         -              Normal
  01/10/2026 02 PM PST           30.40         -              Normal
  01/10/2026 03 PM PST           30.37         -              Normal
  01/10/2026 04 PM PST           30.34         -              Normal
  01/10/2026 05 PM PST           30.31         -              Normal
  01/10/2026 06 PM PST           30.28         -              Normal
  01/10/2026 07 PM PST           30.26         -              Normal
  01/10/2026 08 PM PST           30.23         -              Normal
  01/10/2026 09 PM PST           30.20         -              Normal
  01/10/2026 10 PM PST           30.18         -              Normal
  01/10/2026 11 PM PST           30.15         -              Normal
  01/11/2026 12 AM PST           30.13         -              Normal
  01/11/2026 01 AM PST           30.11         -              Normal
  01/11/2026 02 AM PST           30.08         -              Normal
  01/11/2026 03 AM PST           30.06         -              Normal
  01/11/2026 04 AM PST           30.04         -              Normal
#
# NOTE 1: Stages are rounded to the nearest hundredth (.01) of a foot.
# NOTE 2: Trends are determined using hourly change in unrounded stage.
# NOTE 3: Maximum Values are determined using unrounded stage.