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: Mar 22 2026 at 7:36 AM PDTNext Issuance: Mar 23 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:  03/22/2026 at 07:36 AM PDT
# Data Interval:  1 Hour
#
# Most Recent Date & Time of Maximum Observed:  03/17/2026 at 07:00 AM PDT
# Maximum Observed Stage:                       28.82 Feet
#
# Earliest Date & Time of Maximum Forecast:     03/22/2026 at 08:00 AM PDT
# Maximum Forecast Stage:                       28.24 Feet
#
# OBSERVED
#
# Date & Time  (Local)    Stage (Feet)     Trend     Observed Status
# ------------------------------------------------------------------
  03/17/2026 07 AM PDT           28.82                        Normal
  03/17/2026 08 AM PDT           28.81         -              Normal
  03/17/2026 09 AM PDT           28.80         -              Normal
  03/17/2026 10 AM PDT           28.79         -              Normal
  03/17/2026 11 AM PDT           28.77         -              Normal
  03/17/2026 12 PM PDT           28.77         0              Normal
  03/17/2026 01 PM PDT           28.75         -              Normal
  03/17/2026 02 PM PDT           28.75         0              Normal
  03/17/2026 03 PM PDT           28.74         -              Normal
  03/17/2026 04 PM PDT           28.73         -              Normal
  03/17/2026 05 PM PDT           28.72         -              Normal
  03/17/2026 06 PM PDT           28.70         -              Normal
  03/17/2026 07 PM PDT           28.70         0              Normal
  03/17/2026 08 PM PDT           28.69         -              Normal
  03/17/2026 09 PM PDT           28.69         0              Normal
  03/17/2026 10 PM PDT           28.69         0              Normal
  03/17/2026 11 PM PDT           28.71         +              Normal
  03/18/2026 12 AM PDT           28.72         +              Normal
  03/18/2026 01 AM PDT           28.74         +              Normal
  03/18/2026 02 AM PDT           28.76         +              Normal
  03/18/2026 03 AM PDT           28.77         +              Normal
  03/18/2026 04 AM PDT           28.77         0              Normal
  03/18/2026 05 AM PDT           28.76         -              Normal
  03/18/2026 06 AM PDT           28.76         0              Normal
  03/18/2026 07 AM PDT           28.75         -              Normal
  03/18/2026 08 AM PDT           28.74         -              Normal
  03/18/2026 09 AM PDT           28.72         -              Normal
  03/18/2026 10 AM PDT           28.71         -              Normal
  03/18/2026 11 AM PDT           28.68         -              Normal
  03/18/2026 12 PM PDT           28.65         -              Normal
  03/18/2026 01 PM PDT           28.62         -              Normal
  03/18/2026 02 PM PDT           28.59         -              Normal
  03/18/2026 03 PM PDT           28.56         -              Normal
  03/18/2026 04 PM PDT           28.54         -              Normal
  03/18/2026 05 PM PDT           28.52         -              Normal
  03/18/2026 06 PM PDT           28.51         -              Normal
  03/18/2026 07 PM PDT           28.50         -              Normal
  03/18/2026 08 PM PDT           28.49         -              Normal
  03/18/2026 09 PM PDT           28.50         +              Normal
  03/18/2026 10 PM PDT           28.51         +              Normal
  03/18/2026 11 PM PDT           28.53         +              Normal
  03/19/2026 12 AM PDT           28.53         0              Normal
  03/19/2026 01 AM PDT           28.55         +              Normal
  03/19/2026 02 AM PDT           28.57         +              Normal
  03/19/2026 03 AM PDT           28.58         +              Normal
  03/19/2026 04 AM PDT           28.57         -              Normal
  03/19/2026 05 AM PDT           28.58         +              Normal
  03/19/2026 06 AM PDT           28.58         0              Normal
  03/19/2026 07 AM PDT           28.56         -              Normal
  03/19/2026 08 AM PDT           28.56         0              Normal
  03/19/2026 09 AM PDT           28.54         -              Normal
  03/19/2026 10 AM PDT           28.53         -              Normal
  03/19/2026 11 AM PDT           28.51         -              Normal
  03/19/2026 12 PM PDT           28.50         -              Normal
  03/19/2026 01 PM PDT           28.50         0              Normal
  03/19/2026 02 PM PDT           28.48         -              Normal
  03/19/2026 03 PM PDT           28.47         -              Normal
  03/19/2026 04 PM PDT           28.46         -              Normal
  03/19/2026 05 PM PDT           28.45         -              Normal
  03/19/2026 06 PM PDT           28.45         0              Normal
  03/19/2026 07 PM PDT           28.43         -              Normal
  03/19/2026 08 PM PDT           28.42         -              Normal
  03/19/2026 09 PM PDT           28.42         0              Normal
  03/19/2026 10 PM PDT           28.42         0              Normal
  03/19/2026 11 PM PDT           28.44         +              Normal
  03/20/2026 12 AM PDT           28.45         +              Normal
  03/20/2026 01 AM PDT           28.47         +              Normal
  03/20/2026 02 AM PDT           28.49         +              Normal
  03/20/2026 03 AM PDT           28.51         +              Normal
  03/20/2026 04 AM PDT           28.51         0              Normal
  03/20/2026 05 AM PDT           28.52         +              Normal
  03/20/2026 06 AM PDT           28.51         -              Normal
  03/20/2026 07 AM PDT           28.51         0              Normal
  03/20/2026 08 AM PDT           28.49         -              Normal
  03/20/2026 09 AM PDT           28.48         -              Normal
  03/20/2026 10 AM PDT           28.47         -              Normal
  03/20/2026 11 AM PDT           28.46         -              Normal
  03/20/2026 12 PM PDT           28.45         -              Normal
  03/20/2026 01 PM PDT           28.44         -              Normal
  03/20/2026 02 PM PDT           28.44         0              Normal
  03/20/2026 03 PM PDT           28.43         -              Normal
  03/20/2026 04 PM PDT           28.43         0              Normal
  03/20/2026 05 PM PDT           28.42         -              Normal
  03/20/2026 06 PM PDT           28.41         -              Normal
  03/20/2026 07 PM PDT           28.40         -              Normal
  03/20/2026 08 PM PDT           28.39         -              Normal
  03/20/2026 09 PM PDT           28.38         -              Normal
  03/20/2026 10 PM PDT           28.38         0              Normal
  03/20/2026 11 PM PDT           28.39         +              Normal
  03/21/2026 12 AM PDT           28.41         +              Normal
  03/21/2026 01 AM PDT           28.42         +              Normal
  03/21/2026 02 AM PDT           28.43         +              Normal
  03/21/2026 03 AM PDT           28.45         +              Normal
  03/21/2026 04 AM PDT           28.45         0              Normal
  03/21/2026 05 AM PDT           28.45         0              Normal
  03/21/2026 06 AM PDT           28.45         0              Normal
  03/21/2026 07 AM PDT           28.45         0              Normal
  03/21/2026 08 AM PDT           28.44         -              Normal
  03/21/2026 09 AM PDT           28.43         -              Normal
  03/21/2026 10 AM PDT           28.42         -              Normal
  03/21/2026 11 AM PDT           28.41         -              Normal
  03/21/2026 12 PM PDT           28.40         -              Normal
  03/21/2026 01 PM PDT           28.39         -              Normal
  03/21/2026 02 PM PDT           28.37         -              Normal
  03/21/2026 03 PM PDT           28.36         -              Normal
  03/21/2026 04 PM PDT           28.33         -              Normal
  03/21/2026 05 PM PDT           28.31         -              Normal
  03/21/2026 06 PM PDT           28.28         -              Normal
  03/21/2026 07 PM PDT           28.25         -              Normal
  03/21/2026 08 PM PDT           28.24         -              Normal
  03/21/2026 09 PM PDT           28.22         -              Normal
  03/21/2026 10 PM PDT           28.20         -              Normal
  03/21/2026 11 PM PDT           28.20         0              Normal
  03/22/2026 12 AM PDT           28.21         +              Normal
  03/22/2026 01 AM PDT           28.22         +              Normal
  03/22/2026 02 AM PDT           28.22         0              Normal
  03/22/2026 03 AM PDT           28.24         +              Normal
  03/22/2026 04 AM PDT           28.25         +              Normal
  03/22/2026 05 AM PDT           28.25         0              Normal
  03/22/2026 06 AM PDT           28.25         0              Normal
  03/22/2026 07 AM PDT           28.24         -              Normal
#
# FORECAST
#
# Date & Time  (Local)    Stage (Feet)     Trend     Forecast Status
# ------------------------------------------------------------------
  03/22/2026 08 AM PDT           28.24                        Normal
  03/22/2026 09 AM PDT           28.24         0              Normal
  03/22/2026 10 AM PDT           28.23         -              Normal
  03/22/2026 11 AM PDT           28.23         0              Normal
  03/22/2026 12 PM PDT           28.23         0              Normal
  03/22/2026 01 PM PDT           28.22         -              Normal
  03/22/2026 02 PM PDT           28.22         0              Normal
  03/22/2026 03 PM PDT           28.21         -              Normal
  03/22/2026 04 PM PDT           28.21         0              Normal
  03/22/2026 05 PM PDT           28.20         -              Normal
  03/22/2026 06 PM PDT           28.20         0              Normal
  03/22/2026 07 PM PDT           28.19         -              Normal
  03/22/2026 08 PM PDT           28.19         0              Normal
  03/22/2026 09 PM PDT           28.18         -              Normal
  03/22/2026 10 PM PDT           28.17         -              Normal
  03/22/2026 11 PM PDT           28.16         -              Normal
  03/23/2026 12 AM PDT           28.16         0              Normal
  03/23/2026 01 AM PDT           28.15         -              Normal
  03/23/2026 02 AM PDT           28.14         -              Normal
  03/23/2026 03 AM PDT           28.13         -              Normal
  03/23/2026 04 AM PDT           28.12         -              Normal
  03/23/2026 05 AM PDT           28.11         -              Normal
  03/23/2026 06 AM PDT           28.11         0              Normal
  03/23/2026 07 AM PDT           28.10         -              Normal
  03/23/2026 08 AM PDT           28.09         -              Normal
  03/23/2026 09 AM PDT           28.09         0              Normal
  03/23/2026 10 AM PDT           28.08         -              Normal
  03/23/2026 11 AM PDT           28.07         -              Normal
  03/23/2026 12 PM PDT           28.07         0              Normal
  03/23/2026 01 PM PDT           28.06         -              Normal
  03/23/2026 02 PM PDT           28.06         0              Normal
  03/23/2026 03 PM PDT           28.05         -              Normal
  03/23/2026 04 PM PDT           28.05         0              Normal
  03/23/2026 05 PM PDT           28.04         -              Normal
  03/23/2026 06 PM PDT           28.03         -              Normal
  03/23/2026 07 PM PDT           28.03         0              Normal
  03/23/2026 08 PM PDT           28.02         -              Normal
  03/23/2026 09 PM PDT           28.02         0              Normal
  03/23/2026 10 PM PDT           28.01         -              Normal
  03/23/2026 11 PM PDT           28.01         0              Normal
  03/24/2026 12 AM PDT           28.00         -              Normal
  03/24/2026 01 AM PDT           28.00         0              Normal
  03/24/2026 02 AM PDT           28.00         0              Normal
  03/24/2026 03 AM PDT           27.99         -              Normal
  03/24/2026 04 AM PDT           27.99         0              Normal
  03/24/2026 05 AM PDT           27.98         -              Normal
  03/24/2026 06 AM PDT           27.98         0              Normal
  03/24/2026 07 AM PDT           27.97         -              Normal
  03/24/2026 08 AM PDT           27.97         0              Normal
  03/24/2026 09 AM PDT           27.96         -              Normal
  03/24/2026 10 AM PDT           27.96         0              Normal
  03/24/2026 11 AM PDT           27.95         -              Normal
  03/24/2026 12 PM PDT           27.95         0              Normal
  03/24/2026 01 PM PDT           27.95         0              Normal
  03/24/2026 02 PM PDT           27.94         -              Normal
  03/24/2026 03 PM PDT           27.94         0              Normal
  03/24/2026 04 PM PDT           27.93         -              Normal
  03/24/2026 05 PM PDT           27.93         0              Normal
  03/24/2026 06 PM PDT           27.92         -              Normal
  03/24/2026 07 PM PDT           27.92         0              Normal
  03/24/2026 08 PM PDT           27.91         -              Normal
  03/24/2026 09 PM PDT           27.91         0              Normal
  03/24/2026 10 PM PDT           27.90         -              Normal
  03/24/2026 11 PM PDT           27.90         0              Normal
  03/25/2026 12 AM PDT           27.89         -              Normal
  03/25/2026 01 AM PDT           27.89         0              Normal
  03/25/2026 02 AM PDT           27.89         0              Normal
  03/25/2026 03 AM PDT           27.88         -              Normal
  03/25/2026 04 AM PDT           27.88         0              Normal
  03/25/2026 05 AM PDT           27.87         -              Normal
  03/25/2026 06 AM PDT           27.87         0              Normal
  03/25/2026 07 AM PDT           27.86         -              Normal
  03/25/2026 08 AM PDT           27.86         0              Normal
  03/25/2026 09 AM PDT           27.85         -              Normal
  03/25/2026 10 AM PDT           27.85         0              Normal
  03/25/2026 11 AM PDT           27.84         -              Normal
  03/25/2026 12 PM PDT           27.84         0              Normal
  03/25/2026 01 PM PDT           27.84         0              Normal
  03/25/2026 02 PM PDT           27.83         -              Normal
  03/25/2026 03 PM PDT           27.83         0              Normal
  03/25/2026 04 PM PDT           27.82         -              Normal
  03/25/2026 05 PM PDT           27.82         0              Normal
  03/25/2026 06 PM PDT           27.81         -              Normal
  03/25/2026 07 PM PDT           27.81         0              Normal
  03/25/2026 08 PM PDT           27.81         0              Normal
  03/25/2026 09 PM PDT           27.80         -              Normal
  03/25/2026 10 PM PDT           27.80         0              Normal
  03/25/2026 11 PM PDT           27.79         -              Normal
  03/26/2026 12 AM PDT           27.79         0              Normal
  03/26/2026 01 AM PDT           27.79         0              Normal
  03/26/2026 02 AM PDT           27.78         -              Normal
  03/26/2026 03 AM PDT           27.78         0              Normal
  03/26/2026 04 AM PDT           27.78         0              Normal
  03/26/2026 05 AM PDT           27.77         -              Normal
  03/26/2026 06 AM PDT           27.77         0              Normal
  03/26/2026 07 AM PDT           27.77         0              Normal
  03/26/2026 08 AM PDT           27.76         -              Normal
  03/26/2026 09 AM PDT           27.76         0              Normal
  03/26/2026 10 AM PDT           27.75         -              Normal
  03/26/2026 11 AM PDT           27.75         0              Normal
  03/26/2026 12 PM PDT           27.75         0              Normal
  03/26/2026 01 PM PDT           27.74         -              Normal
  03/26/2026 02 PM PDT           27.74         0              Normal
  03/26/2026 03 PM PDT           27.73         -              Normal
  03/26/2026 04 PM PDT           27.73         0              Normal
  03/26/2026 05 PM PDT           27.73         0              Normal
  03/26/2026 06 PM PDT           27.72         -              Normal
  03/26/2026 07 PM PDT           27.72         0              Normal
  03/26/2026 08 PM PDT           27.72         0              Normal
  03/26/2026 09 PM PDT           27.71         -              Normal
  03/26/2026 10 PM PDT           27.71         0              Normal
  03/26/2026 11 PM PDT           27.71         0              Normal
  03/27/2026 12 AM PDT           27.70         -              Normal
  03/27/2026 01 AM PDT           27.70         0              Normal
  03/27/2026 02 AM PDT           27.70         0              Normal
  03/27/2026 03 AM PDT           27.69         -              Normal
  03/27/2026 04 AM PDT           27.69         0              Normal
  03/27/2026 05 AM PDT           27.69         0              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.