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 FeetForecast Type: Official Location
Location: Sacramento County in CaliforniaBulletin Group: San JoaquinRiver Group: North San Joaquin
Issuance Time: Apr 12 2026 at 8:57 AM PDTNext Issuance: Apr 13 2026 at 9:00 AM PDT
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:  04/12/2026 at 08:57 AM PDT
# Data Interval:  1 Hour
#
# Most Recent Date & Time of Maximum Observed:  04/12/2026 at 08:00 AM PDT
# Maximum Observed Stage:                       30.67 Feet
#
# Earliest Date & Time of Maximum Forecast:     04/13/2026 at 12:00 PM PDT
# Maximum Forecast Stage:                       40.35 Feet
#
# OBSERVED
#
# Date & Time  (Local)    Stage (Feet)     Trend     Observed Status
# ------------------------------------------------------------------
  04/07/2026 08 AM PDT           28.60                        Normal
  04/07/2026 09 AM PDT           28.57         -              Normal
  04/07/2026 10 AM PDT           28.56         -              Normal
  04/07/2026 11 AM PDT           28.56         0              Normal
  04/07/2026 12 PM PDT           28.55         -              Normal
  04/07/2026 01 PM PDT           28.53         -              Normal
  04/07/2026 02 PM PDT           28.53         0              Normal
  04/07/2026 03 PM PDT           28.51         -              Normal
  04/07/2026 04 PM PDT           28.51         0              Normal
  04/07/2026 05 PM PDT           28.50         -              Normal
  04/07/2026 06 PM PDT           28.49         -              Normal
  04/07/2026 07 PM PDT           28.47         -              Normal
  04/07/2026 08 PM PDT           28.47         0              Normal
  04/07/2026 09 PM PDT           28.45         -              Normal
  04/07/2026 10 PM PDT           28.44         -              Normal
  04/07/2026 11 PM PDT           28.43         -              Normal
  04/08/2026 12 AM PDT           28.42         -              Normal
  04/08/2026 01 AM PDT           28.41         -              Normal
  04/08/2026 02 AM PDT           28.42         +              Normal
  04/08/2026 03 AM PDT           28.41         -              Normal
  04/08/2026 04 AM PDT           28.41         0              Normal
  04/08/2026 05 AM PDT           28.41         0              Normal
  04/08/2026 06 AM PDT           28.42         +              Normal
  04/08/2026 07 AM PDT           28.39         -              Normal
  04/08/2026 08 AM PDT           28.38         -              Normal
  04/08/2026 09 AM PDT           28.39         +              Normal
  04/08/2026 10 AM PDT           28.38         -              Normal
  04/08/2026 11 AM PDT           28.37         -              Normal
  04/08/2026 12 PM PDT           28.36         -              Normal
  04/08/2026 01 PM PDT           28.36         0              Normal
  04/08/2026 02 PM PDT           28.34         -              Normal
  04/08/2026 03 PM PDT           28.34         0              Normal
  04/08/2026 04 PM PDT           28.31         -              Normal
  04/08/2026 05 PM PDT           28.32         +              Normal
  04/08/2026 06 PM PDT           28.30         -              Normal
  04/08/2026 07 PM PDT           28.29         -              Normal
  04/08/2026 08 PM PDT           28.29         0              Normal
  04/08/2026 09 PM PDT           28.28         -              Normal
  04/08/2026 10 PM PDT           28.28         0              Normal
  04/08/2026 11 PM PDT           28.27         -              Normal
  04/09/2026 12 AM PDT           28.26         -              Normal
  04/09/2026 01 AM PDT           28.25         -              Normal
  04/09/2026 02 AM PDT           28.24         -              Normal
  04/09/2026 03 AM PDT           28.24         0              Normal
  04/09/2026 04 AM PDT           28.24         0              Normal
  04/09/2026 05 AM PDT           28.23         -              Normal
  04/09/2026 06 AM PDT           28.23         0              Normal
  04/09/2026 07 AM PDT           28.23         0              Normal
  04/09/2026 08 AM PDT           28.22         -              Normal
  04/09/2026 09 AM PDT           28.22         0              Normal
  04/09/2026 10 AM PDT           28.21         -              Normal
  04/09/2026 11 AM PDT           28.20         -              Normal
  04/09/2026 12 PM PDT           28.20         0              Normal
  04/09/2026 01 PM PDT           28.20         0              Normal
  04/09/2026 02 PM PDT           28.18         -              Normal
  04/09/2026 03 PM PDT           28.18         0              Normal
  04/09/2026 04 PM PDT           28.18         0              Normal
  04/09/2026 05 PM PDT           28.19         +              Normal
  04/09/2026 06 PM PDT           28.21         +              Normal
  04/09/2026 07 PM PDT           28.22         +              Normal
  04/09/2026 08 PM PDT           28.20         -              Normal
  04/09/2026 09 PM PDT           28.17         -              Normal
  04/09/2026 10 PM PDT           28.21         +              Normal
  04/09/2026 11 PM PDT           28.24         +              Normal
  04/10/2026 12 AM PDT           28.28         +              Normal
  04/10/2026 01 AM PDT           28.29         +              Normal
  04/10/2026 02 AM PDT           28.31         +              Normal
  04/10/2026 03 AM PDT           28.31         0              Normal
  04/10/2026 04 AM PDT           28.31         0              Normal
  04/10/2026 05 AM PDT           28.31         0              Normal
  04/10/2026 06 AM PDT           28.31         0              Normal
  04/10/2026 07 AM PDT           28.31         0              Normal
  04/10/2026 08 AM PDT           28.29         -              Normal
  04/10/2026 09 AM PDT           28.29         0              Normal
  04/10/2026 10 AM PDT           28.27         -              Normal
  04/10/2026 11 AM PDT           28.26         -              Normal
  04/10/2026 12 PM PDT           28.26         0              Normal
  04/10/2026 01 PM PDT           28.25         -              Normal
  04/10/2026 02 PM PDT           28.24         -              Normal
  04/10/2026 03 PM PDT           28.23         -              Normal
  04/10/2026 04 PM PDT           28.24         +              Normal
  04/10/2026 05 PM PDT           28.26         +              Normal
  04/10/2026 06 PM PDT           28.27         +              Normal
  04/10/2026 07 PM PDT           28.27         0              Normal
  04/10/2026 08 PM PDT           28.28         +              Normal
  04/10/2026 09 PM PDT           28.28         0              Normal
  04/10/2026 10 PM PDT           28.28         0              Normal
  04/10/2026 11 PM PDT           28.27         -              Normal
  04/11/2026 12 AM PDT           28.27         0              Normal
  04/11/2026 01 AM PDT           28.26         -              Normal
  04/11/2026 02 AM PDT           28.26         0              Normal
  04/11/2026 03 AM PDT           28.27         +              Normal
  04/11/2026 04 AM PDT           28.29         +              Normal
  04/11/2026 05 AM PDT           28.33         +              Normal
  04/11/2026 06 AM PDT           28.40         +              Normal
  04/11/2026 07 AM PDT           28.45         +              Normal
  04/11/2026 08 AM PDT           28.49         +              Normal
  04/11/2026 09 AM PDT           28.52         +              Normal
  04/11/2026 10 AM PDT           28.55         +              Normal
  04/11/2026 11 AM PDT           28.57         +              Normal
  04/11/2026 12 PM PDT           28.59         +              Normal
  04/11/2026 01 PM PDT           28.63         +              Normal
  04/11/2026 02 PM PDT           28.66         +              Normal
  04/11/2026 03 PM PDT           28.73         +              Normal
  04/11/2026 04 PM PDT           28.86         +              Normal
  04/11/2026 05 PM PDT           29.11         +              Normal
  04/11/2026 06 PM PDT           29.42         +              Normal
  04/11/2026 07 PM PDT           29.71         +              Normal
  04/11/2026 08 PM PDT           29.90         +              Normal
  04/11/2026 09 PM PDT           30.06         +              Normal
  04/11/2026 10 PM PDT           30.20         +              Normal
  04/11/2026 11 PM PDT           30.28         +              Normal
  04/12/2026 12 AM PDT           30.29         +              Normal
  04/12/2026 01 AM PDT           30.28         -              Normal
  04/12/2026 02 AM PDT           30.26         -              Normal
  04/12/2026 03 AM PDT           30.23         -              Normal
  04/12/2026 04 AM PDT           30.29         +              Normal
  04/12/2026 05 AM PDT           30.34         +              Normal
  04/12/2026 06 AM PDT           30.43         +              Normal
  04/12/2026 07 AM PDT           30.55         +              Normal
  04/12/2026 08 AM PDT           30.67         +              Normal
#
# FORECAST
#
# Date & Time  (Local)    Stage (Feet)     Trend     Forecast Status
# ------------------------------------------------------------------
  04/12/2026 09 AM PDT           31.11                        Normal
  04/12/2026 10 AM PDT           31.58         +              Normal
  04/12/2026 11 AM PDT           32.07         +              Normal
  04/12/2026 12 PM PDT           32.56         +              Normal
  04/12/2026 01 PM PDT           33.04         +              Normal
  04/12/2026 02 PM PDT           33.53         +              Normal
  04/12/2026 03 PM PDT           34.01         +              Normal
  04/12/2026 04 PM PDT           34.50         +              Normal
  04/12/2026 05 PM PDT           35.00         +              Normal
  04/12/2026 06 PM PDT           35.49         +              Normal
  04/12/2026 07 PM PDT           36.00         +              Normal
  04/12/2026 08 PM PDT           36.51         +              Normal
  04/12/2026 09 PM PDT           36.97         +              Normal
  04/12/2026 10 PM PDT           37.39         +              Normal
  04/12/2026 11 PM PDT           37.77         +              Normal
  04/13/2026 12 AM PDT           38.13         +              Normal
  04/13/2026 01 AM PDT           38.52         +      Action/Monitor
  04/13/2026 02 AM PDT           38.89         +      Action/Monitor
  04/13/2026 03 AM PDT           39.20         +      Action/Monitor
  04/13/2026 04 AM PDT           39.48         +      Action/Monitor
  04/13/2026 05 AM PDT           39.72         +      Action/Monitor
  04/13/2026 06 AM PDT           39.92         +      Action/Monitor
  04/13/2026 07 AM PDT           40.06         +      Action/Monitor
  04/13/2026 08 AM PDT           40.16         +      Action/Monitor
  04/13/2026 09 AM PDT           40.23         +      Action/Monitor
  04/13/2026 10 AM PDT           40.29         +      Action/Monitor
  04/13/2026 11 AM PDT           40.32         +      Action/Monitor
  04/13/2026 12 PM PDT           40.35         +      Action/Monitor
  04/13/2026 01 PM PDT           40.35         0      Action/Monitor
  04/13/2026 02 PM PDT           40.33         -      Action/Monitor
  04/13/2026 03 PM PDT           40.30         -      Action/Monitor
  04/13/2026 04 PM PDT           40.24         -      Action/Monitor
  04/13/2026 05 PM PDT           40.18         -      Action/Monitor
  04/13/2026 06 PM PDT           40.11         -      Action/Monitor
  04/13/2026 07 PM PDT           40.03         -      Action/Monitor
  04/13/2026 08 PM PDT           39.92         -      Action/Monitor
  04/13/2026 09 PM PDT           39.77         -      Action/Monitor
  04/13/2026 10 PM PDT           39.63         -      Action/Monitor
  04/13/2026 11 PM PDT           39.48         -      Action/Monitor
  04/14/2026 12 AM PDT           39.31         -      Action/Monitor
  04/14/2026 01 AM PDT           39.15         -      Action/Monitor
  04/14/2026 02 AM PDT           39.01         -      Action/Monitor
  04/14/2026 03 AM PDT           38.85         -      Action/Monitor
  04/14/2026 04 AM PDT           38.70         -      Action/Monitor
  04/14/2026 05 AM PDT           38.54         -      Action/Monitor
  04/14/2026 06 AM PDT           38.37         -              Normal
  04/14/2026 07 AM PDT           38.20         -              Normal
  04/14/2026 08 AM PDT           38.03         -              Normal
  04/14/2026 09 AM PDT           37.88         -              Normal
  04/14/2026 10 AM PDT           37.72         -              Normal
  04/14/2026 11 AM PDT           37.57         -              Normal
  04/14/2026 12 PM PDT           37.41         -              Normal
  04/14/2026 01 PM PDT           37.26         -              Normal
  04/14/2026 02 PM PDT           37.10         -              Normal
  04/14/2026 03 PM PDT           36.95         -              Normal
  04/14/2026 04 PM PDT           36.79         -              Normal
  04/14/2026 05 PM PDT           36.64         -              Normal
  04/14/2026 06 PM PDT           36.48         -              Normal
  04/14/2026 07 PM PDT           36.31         -              Normal
  04/14/2026 08 PM PDT           36.14         -              Normal
  04/14/2026 09 PM PDT           35.98         -              Normal
  04/14/2026 10 PM PDT           35.82         -              Normal
  04/14/2026 11 PM PDT           35.67         -              Normal
  04/15/2026 12 AM PDT           35.53         -              Normal
  04/15/2026 01 AM PDT           35.39         -              Normal
  04/15/2026 02 AM PDT           35.26         -              Normal
  04/15/2026 03 AM PDT           35.14         -              Normal
  04/15/2026 04 AM PDT           35.02         -              Normal
  04/15/2026 05 AM PDT           34.90         -              Normal
  04/15/2026 06 AM PDT           34.78         -              Normal
  04/15/2026 07 AM PDT           34.67         -              Normal
  04/15/2026 08 AM PDT           34.56         -              Normal
  04/15/2026 09 AM PDT           34.44         -              Normal
  04/15/2026 10 AM PDT           34.33         -              Normal
  04/15/2026 11 AM PDT           34.22         -              Normal
  04/15/2026 12 PM PDT           34.11         -              Normal
  04/15/2026 01 PM PDT           34.01         -              Normal
  04/15/2026 02 PM PDT           33.91         -              Normal
  04/15/2026 03 PM PDT           33.80         -              Normal
  04/15/2026 04 PM PDT           33.71         -              Normal
  04/15/2026 05 PM PDT           33.62         -              Normal
  04/15/2026 06 PM PDT           33.52         -              Normal
  04/15/2026 07 PM PDT           33.43         -              Normal
  04/15/2026 08 PM PDT           33.34         -              Normal
  04/15/2026 09 PM PDT           33.25         -              Normal
  04/15/2026 10 PM PDT           33.17         -              Normal
  04/15/2026 11 PM PDT           33.08         -              Normal
  04/16/2026 12 AM PDT           33.00         -              Normal
  04/16/2026 01 AM PDT           32.92         -              Normal
  04/16/2026 02 AM PDT           32.84         -              Normal
  04/16/2026 03 AM PDT           32.77         -              Normal
  04/16/2026 04 AM PDT           32.70         -              Normal
  04/16/2026 05 AM PDT           32.63         -              Normal
  04/16/2026 06 AM PDT           32.56         -              Normal
  04/16/2026 07 AM PDT           32.50         -              Normal
  04/16/2026 08 AM PDT           32.44         -              Normal
  04/16/2026 09 AM PDT           32.38         -              Normal
  04/16/2026 10 AM PDT           32.33         -              Normal
  04/16/2026 11 AM PDT           32.27         -              Normal
  04/16/2026 12 PM PDT           32.22         -              Normal
  04/16/2026 01 PM PDT           32.17         -              Normal
  04/16/2026 02 PM PDT           32.12         -              Normal
  04/16/2026 03 PM PDT           32.08         -              Normal
  04/16/2026 04 PM PDT           32.03         -              Normal
  04/16/2026 05 PM PDT           31.99         -              Normal
  04/16/2026 06 PM PDT           31.94         -              Normal
  04/16/2026 07 PM PDT           31.90         -              Normal
  04/16/2026 08 PM PDT           31.86         -              Normal
  04/16/2026 09 PM PDT           31.81         -              Normal
  04/16/2026 10 PM PDT           31.77         -              Normal
  04/16/2026 11 PM PDT           31.73         -              Normal
  04/17/2026 12 AM PDT           31.69         -              Normal
  04/17/2026 01 AM PDT           31.65         -              Normal
  04/17/2026 02 AM PDT           31.61         -              Normal
  04/17/2026 03 AM PDT           31.57         -              Normal
  04/17/2026 04 AM PDT           31.53         -              Normal
  04/17/2026 05 AM PDT           31.49         -              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.