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 31 2026 at 8:53 AM PDTNext Issuance: Mar 31 2026 at 3:00 PM 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:  03/31/2026 at 08:53 AM PDT
# Data Interval:  1 Hour
#
# Most Recent Date & Time of Maximum Observed:  03/26/2026 at 08:00 AM PDT
# Maximum Observed Stage:                       27.92 Feet
#
# Earliest Date & Time of Maximum Forecast:     04/03/2026 at 05:00 AM PDT
# Maximum Forecast Stage:                       29.14 Feet
#
# OBSERVED
#
# Date & Time  (Local)    Stage (Feet)     Trend     Observed Status
# ------------------------------------------------------------------
  03/26/2026 08 AM PDT           27.92                        Normal
  03/26/2026 09 AM PDT           27.91         -              Normal
  03/26/2026 10 AM PDT           27.91         0              Normal
  03/26/2026 11 AM PDT           27.91         0              Normal
  03/26/2026 12 PM PDT           27.89         -              Normal
  03/26/2026 01 PM PDT           27.89         0              Normal
  03/26/2026 02 PM PDT           27.88         -              Normal
  03/26/2026 03 PM PDT           27.87         -              Normal
  03/26/2026 04 PM PDT           27.87         0              Normal
  03/26/2026 05 PM PDT           27.85         -              Normal
  03/26/2026 06 PM PDT           27.86         +              Normal
  03/26/2026 07 PM PDT           27.85         -              Normal
  03/26/2026 08 PM PDT           27.84         -              Normal
  03/26/2026 09 PM PDT           27.84         0              Normal
  03/26/2026 10 PM PDT           27.83         -              Normal
  03/26/2026 11 PM PDT           27.82         -              Normal
  03/27/2026 12 AM PDT           27.81         -              Normal
  03/27/2026 01 AM PDT           27.80         -              Normal
  03/27/2026 02 AM PDT           27.79         -              Normal
  03/27/2026 03 AM PDT           27.80         +              Normal
  03/27/2026 04 AM PDT           27.80         0              Normal
  03/27/2026 05 AM PDT           27.80         0              Normal
  03/27/2026 06 AM PDT           27.80         0              Normal
  03/27/2026 07 AM PDT           27.80         0              Normal
  03/27/2026 08 AM PDT           27.79         -              Normal
  03/27/2026 09 AM PDT           27.79         0              Normal
  03/27/2026 10 AM PDT           27.79         0              Normal
  03/27/2026 11 AM PDT           27.78         -              Normal
  03/27/2026 12 PM PDT           27.78         0              Normal
  03/27/2026 01 PM PDT           27.78         0              Normal
  03/27/2026 02 PM PDT           27.77         -              Normal
  03/27/2026 03 PM PDT           27.76         -              Normal
  03/27/2026 04 PM PDT           27.76         0              Normal
  03/27/2026 05 PM PDT           27.75         -              Normal
  03/27/2026 06 PM PDT           27.75         0              Normal
  03/27/2026 07 PM PDT           27.74         -              Normal
  03/27/2026 08 PM PDT           27.73         -              Normal
  03/27/2026 09 PM PDT           27.74         +              Normal
  03/27/2026 10 PM PDT           27.73         -              Normal
  03/27/2026 11 PM PDT           27.72         -              Normal
  03/28/2026 12 AM PDT           27.71         -              Normal
  03/28/2026 01 AM PDT           27.71         0              Normal
  03/28/2026 02 AM PDT           27.70         -              Normal
  03/28/2026 03 AM PDT           27.70         0              Normal
  03/28/2026 04 AM PDT           27.69         -              Normal
  03/28/2026 05 AM PDT           27.70         +              Normal
  03/28/2026 06 AM PDT           27.69         -              Normal
  03/28/2026 07 AM PDT           27.70         +              Normal
  03/28/2026 08 AM PDT           27.71         +              Normal
  03/28/2026 09 AM PDT           27.71         0              Normal
  03/28/2026 10 AM PDT           27.71         0              Normal
  03/28/2026 11 AM PDT           27.70         -              Normal
  03/28/2026 12 PM PDT           27.70         0              Normal
  03/28/2026 01 PM PDT           27.69         -              Normal
  03/28/2026 02 PM PDT           27.69         0              Normal
  03/28/2026 03 PM PDT           27.69         0              Normal
  03/28/2026 04 PM PDT           27.68         -              Normal
  03/28/2026 05 PM PDT           27.68         0              Normal
  03/28/2026 06 PM PDT           27.67         -              Normal
  03/28/2026 07 PM PDT           27.66         -              Normal
  03/28/2026 08 PM PDT           27.66         0              Normal
  03/28/2026 09 PM PDT           27.65         -              Normal
  03/28/2026 10 PM PDT           27.64         -              Normal
  03/28/2026 11 PM PDT           27.64         0              Normal
  03/29/2026 12 AM PDT           27.64         0              Normal
  03/29/2026 01 AM PDT           27.64         0              Normal
  03/29/2026 02 AM PDT           27.63         -              Normal
  03/29/2026 03 AM PDT           27.62         -              Normal
  03/29/2026 04 AM PDT           27.62         0              Normal
  03/29/2026 05 AM PDT           27.63         +              Normal
  03/29/2026 06 AM PDT           27.62         -              Normal
  03/29/2026 07 AM PDT           27.63         +              Normal
  03/29/2026 08 AM PDT           27.63         0              Normal
  03/29/2026 09 AM PDT           27.63         0              Normal
  03/29/2026 10 AM PDT           27.63         0              Normal
  03/29/2026 11 AM PDT           27.62         -              Normal
  03/29/2026 12 PM PDT           27.62         0              Normal
  03/29/2026 01 PM PDT           27.62         0              Normal
  03/29/2026 02 PM PDT           27.61         -              Normal
  03/29/2026 03 PM PDT           27.61         0              Normal
  03/29/2026 04 PM PDT           27.61         0              Normal
  03/29/2026 05 PM PDT           27.60         -              Normal
  03/29/2026 06 PM PDT           27.59         -              Normal
  03/29/2026 07 PM PDT           27.58         -              Normal
  03/29/2026 08 PM PDT           27.57         -              Normal
  03/29/2026 09 PM PDT           27.56         -              Normal
  03/29/2026 10 PM PDT           27.55         -              Normal
  03/29/2026 11 PM PDT           27.53         -              Normal
  03/30/2026 12 AM PDT           27.53         0              Normal
  03/30/2026 01 AM PDT           27.51         -              Normal
  03/30/2026 02 AM PDT           27.50         -              Normal
  03/30/2026 03 AM PDT           27.50         0              Normal
  03/30/2026 04 AM PDT           27.50         0              Normal
  03/30/2026 05 AM PDT           27.49         -              Normal
  03/30/2026 06 AM PDT           27.49         0              Normal
  03/30/2026 07 AM PDT           27.50         +              Normal
  03/30/2026 08 AM PDT           27.49         -              Normal
  03/30/2026 09 AM PDT           27.49         0              Normal
  03/30/2026 10 AM PDT           27.49         0              Normal
  03/30/2026 11 AM PDT           27.49         0              Normal
  03/30/2026 12 PM PDT           27.49         0              Normal
  03/30/2026 01 PM PDT           27.48         -              Normal
  03/30/2026 02 PM PDT           27.48         0              Normal
  03/30/2026 03 PM PDT           27.48         0              Normal
  03/30/2026 04 PM PDT           27.47         -              Normal
  03/30/2026 05 PM PDT           27.46         -              Normal
  03/30/2026 06 PM PDT           27.46         0              Normal
  03/30/2026 07 PM PDT           27.46         0              Normal
  03/30/2026 08 PM PDT           27.45         -              Normal
  03/30/2026 09 PM PDT           27.45         0              Normal
  03/30/2026 10 PM PDT           27.44         -              Normal
  03/30/2026 11 PM PDT           27.44         0              Normal
  03/31/2026 12 AM PDT           27.43         -              Normal
  03/31/2026 01 AM PDT           27.43         0              Normal
  03/31/2026 02 AM PDT           27.42         -              Normal
  03/31/2026 03 AM PDT           27.41         -              Normal
  03/31/2026 04 AM PDT           27.42         +              Normal
  03/31/2026 05 AM PDT           27.41         -              Normal
  03/31/2026 06 AM PDT           27.40         -              Normal
  03/31/2026 07 AM PDT           27.40         0              Normal
  03/31/2026 08 AM PDT           27.40         0              Normal
#
# FORECAST
#
# Date & Time  (Local)    Stage (Feet)     Trend     Forecast Status
# ------------------------------------------------------------------
  03/31/2026 09 AM PDT           27.40                        Normal
  03/31/2026 10 AM PDT           27.40         0              Normal
  03/31/2026 11 AM PDT           27.40         0              Normal
  03/31/2026 12 PM PDT           27.40         0              Normal
  03/31/2026 01 PM PDT           27.40         0              Normal
  03/31/2026 02 PM PDT           27.40         0              Normal
  03/31/2026 03 PM PDT           27.40         0              Normal
  03/31/2026 04 PM PDT           27.40         0              Normal
  03/31/2026 05 PM PDT           27.39         -              Normal
  03/31/2026 06 PM PDT           27.39         0              Normal
  03/31/2026 07 PM PDT           27.39         0              Normal
  03/31/2026 08 PM PDT           27.39         0              Normal
  03/31/2026 09 PM PDT           27.39         0              Normal
  03/31/2026 10 PM PDT           27.39         0              Normal
  03/31/2026 11 PM PDT           27.40         +              Normal
  04/01/2026 12 AM PDT           27.40         0              Normal
  04/01/2026 01 AM PDT           27.41         +              Normal
  04/01/2026 02 AM PDT           27.42         +              Normal
  04/01/2026 03 AM PDT           27.43         +              Normal
  04/01/2026 04 AM PDT           27.44         +              Normal
  04/01/2026 05 AM PDT           27.46         +              Normal
  04/01/2026 06 AM PDT           27.48         +              Normal
  04/01/2026 07 AM PDT           27.51         +              Normal
  04/01/2026 08 AM PDT           27.55         +              Normal
  04/01/2026 09 AM PDT           27.59         +              Normal
  04/01/2026 10 AM PDT           27.64         +              Normal
  04/01/2026 11 AM PDT           27.70         +              Normal
  04/01/2026 12 PM PDT           27.75         +              Normal
  04/01/2026 01 PM PDT           27.82         +              Normal
  04/01/2026 02 PM PDT           27.88         +              Normal
  04/01/2026 03 PM PDT           27.94         +              Normal
  04/01/2026 04 PM PDT           28.00         +              Normal
  04/01/2026 05 PM PDT           28.07         +              Normal
  04/01/2026 06 PM PDT           28.14         +              Normal
  04/01/2026 07 PM PDT           28.20         +              Normal
  04/01/2026 08 PM PDT           28.25         +              Normal
  04/01/2026 09 PM PDT           28.31         +              Normal
  04/01/2026 10 PM PDT           28.36         +              Normal
  04/01/2026 11 PM PDT           28.40         +              Normal
  04/02/2026 12 AM PDT           28.45         +              Normal
  04/02/2026 01 AM PDT           28.49         +              Normal
  04/02/2026 02 AM PDT           28.53         +              Normal
  04/02/2026 03 AM PDT           28.56         +              Normal
  04/02/2026 04 AM PDT           28.59         +              Normal
  04/02/2026 05 AM PDT           28.63         +              Normal
  04/02/2026 06 AM PDT           28.66         +              Normal
  04/02/2026 07 AM PDT           28.68         +              Normal
  04/02/2026 08 AM PDT           28.71         +              Normal
  04/02/2026 09 AM PDT           28.74         +              Normal
  04/02/2026 10 AM PDT           28.77         +              Normal
  04/02/2026 11 AM PDT           28.80         +              Normal
  04/02/2026 12 PM PDT           28.82         +              Normal
  04/02/2026 01 PM PDT           28.85         +              Normal
  04/02/2026 02 PM PDT           28.87         +              Normal
  04/02/2026 03 PM PDT           28.90         +              Normal
  04/02/2026 04 PM PDT           28.92         +              Normal
  04/02/2026 05 PM PDT           28.95         +              Normal
  04/02/2026 06 PM PDT           28.97         +              Normal
  04/02/2026 07 PM PDT           28.99         +              Normal
  04/02/2026 08 PM PDT           29.02         +              Normal
  04/02/2026 09 PM PDT           29.04         +              Normal
  04/02/2026 10 PM PDT           29.06         +              Normal
  04/02/2026 11 PM PDT           29.07         +              Normal
  04/03/2026 12 AM PDT           29.09         +              Normal
  04/03/2026 01 AM PDT           29.11         +              Normal
  04/03/2026 02 AM PDT           29.12         +              Normal
  04/03/2026 03 AM PDT           29.13         +              Normal
  04/03/2026 04 AM PDT           29.13         0              Normal
  04/03/2026 05 AM PDT           29.14         +              Normal
  04/03/2026 06 AM PDT           29.14         0              Normal
  04/03/2026 07 AM PDT           29.14         0              Normal
  04/03/2026 08 AM PDT           29.14         0              Normal
  04/03/2026 09 AM PDT           29.14         0              Normal
  04/03/2026 10 AM PDT           29.14         0              Normal
  04/03/2026 11 AM PDT           29.13         -              Normal
  04/03/2026 12 PM PDT           29.12         -              Normal
  04/03/2026 01 PM PDT           29.12         0              Normal
  04/03/2026 02 PM PDT           29.11         -              Normal
  04/03/2026 03 PM PDT           29.10         -              Normal
  04/03/2026 04 PM PDT           29.09         -              Normal
  04/03/2026 05 PM PDT           29.08         -              Normal
  04/03/2026 06 PM PDT           29.07         -              Normal
  04/03/2026 07 PM PDT           29.06         -              Normal
  04/03/2026 08 PM PDT           29.05         -              Normal
  04/03/2026 09 PM PDT           29.04         -              Normal
  04/03/2026 10 PM PDT           29.02         -              Normal
  04/03/2026 11 PM PDT           29.01         -              Normal
  04/04/2026 12 AM PDT           29.00         -              Normal
  04/04/2026 01 AM PDT           28.98         -              Normal
  04/04/2026 02 AM PDT           28.97         -              Normal
  04/04/2026 03 AM PDT           28.95         -              Normal
  04/04/2026 04 AM PDT           28.94         -              Normal
  04/04/2026 05 AM PDT           28.93         -              Normal
  04/04/2026 06 AM PDT           28.91         -              Normal
  04/04/2026 07 AM PDT           28.89         -              Normal
  04/04/2026 08 AM PDT           28.88         -              Normal
  04/04/2026 09 AM PDT           28.86         -              Normal
  04/04/2026 10 AM PDT           28.85         -              Normal
  04/04/2026 11 AM PDT           28.83         -              Normal
  04/04/2026 12 PM PDT           28.82         -              Normal
  04/04/2026 01 PM PDT           28.80         -              Normal
  04/04/2026 02 PM PDT           28.79         -              Normal
  04/04/2026 03 PM PDT           28.77         -              Normal
  04/04/2026 04 PM PDT           28.75         -              Normal
  04/04/2026 05 PM PDT           28.74         -              Normal
  04/04/2026 06 PM PDT           28.72         -              Normal
  04/04/2026 07 PM PDT           28.71         -              Normal
  04/04/2026 08 PM PDT           28.69         -              Normal
  04/04/2026 09 PM PDT           28.68         -              Normal
  04/04/2026 10 PM PDT           28.66         -              Normal
  04/04/2026 11 PM PDT           28.65         -              Normal
  04/05/2026 12 AM PDT           28.64         -              Normal
  04/05/2026 01 AM PDT           28.62         -              Normal
  04/05/2026 02 AM PDT           28.61         -              Normal
  04/05/2026 03 AM PDT           28.59         -              Normal
  04/05/2026 04 AM PDT           28.58         -              Normal
  04/05/2026 05 AM PDT           28.57         -              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.