SAN JOAQUIN RIVER DELTA - ROUGH & READY ISLAND (RRIC1)
Latitude: 37.96º NLongitude: 121.36º WElevation: 15 Feet
Location: San Joaquin County in CaliforniaBulletin Group: San JoaquinRiver Group: San Joaquin
Issuance Time: Feb 12 2026 at 8:48 AM PSTNext Issuance: Feb 12 2026 at 3:00 PM PST
Action/Monitor: N/A Minor Flood: N/A Moderate Flood: N/A Major Flood: N/A

# Tabular Observed and Forecast Hydrograph Information
#
# Location: San Joaquin River Delta - Rough and Ready Island (RRIC1)
#
# File Generation Time:  02/12/2026 at 08:50 AM PST
# Data Interval:  1 Hour
#
# Most Recent Date & Time of Maximum Observed:  02/11/2026 at 12:00 PM PST
# Maximum Observed Stage:                       7.04 Feet
#
# Earliest Date & Time of Maximum Forecast:     02/14/2026 at 03:00 PM PST
# Maximum Forecast Stage:                       6.88 Feet
#
# OBSERVED
#
# Date & Time  (Local)    Stage (Feet)     Trend     Observed Status
# ------------------------------------------------------------------
  02/07/2026 08 AM PST            5.91                Not Applicable
  02/07/2026 09 AM PST            6.18         +      Not Applicable
  02/07/2026 10 AM PST            6.28         +      Not Applicable
  02/07/2026 11 AM PST            5.89         -      Not Applicable
  02/07/2026 12 PM PST            5.15         -      Not Applicable
  02/07/2026 01 PM PST            4.66         -      Not Applicable
  02/07/2026 02 PM PST            4.25         -      Not Applicable
  02/07/2026 03 PM PST            3.80         -      Not Applicable
  02/07/2026 04 PM PST            3.42         -      Not Applicable
  02/07/2026 05 PM PST            3.28         -      Not Applicable
  02/07/2026 06 PM PST            3.65         +      Not Applicable
  02/07/2026 07 PM PST            4.42         +      Not Applicable
  02/07/2026 08 PM PST            4.86         +      Not Applicable
  02/07/2026 09 PM PST            5.02         +      Not Applicable
  02/07/2026 10 PM PST            5.04         +      Not Applicable
  02/07/2026 11 PM PST            4.77         -      Not Applicable
  02/08/2026 12 AM PST            4.28         -      Not Applicable
  02/08/2026 01 AM PST            3.90         -      Not Applicable
  02/08/2026 02 AM PST            3.63         -      Not Applicable
  02/08/2026 03 AM PST            3.39         -      Not Applicable
  02/08/2026 04 AM PST            3.34         -      Not Applicable
  02/08/2026 05 AM PST            3.87         +      Not Applicable
  02/08/2026 06 AM PST            4.64         +      Not Applicable
  02/08/2026 07 AM PST            5.17         +      Not Applicable
  02/08/2026 08 AM PST            5.58         +      Not Applicable
  02/08/2026 09 AM PST            5.92         +      Not Applicable
  02/08/2026 10 AM PST            6.14         +      Not Applicable
  02/08/2026 11 AM PST            6.00         -      Not Applicable
  02/08/2026 12 PM PST            5.37         -      Not Applicable
  02/08/2026 01 PM PST            4.78         -      Not Applicable
  02/08/2026 02 PM PST            4.39         -      Not Applicable
  02/08/2026 03 PM PST            3.96         -      Not Applicable
  02/08/2026 04 PM PST            3.49         -      Not Applicable
  02/08/2026 05 PM PST            3.16         -      Not Applicable
  02/08/2026 06 PM PST            3.05         -      Not Applicable
  02/08/2026 07 PM PST            3.36         +      Not Applicable
  02/08/2026 08 PM PST            3.99         +      Not Applicable
  02/08/2026 09 PM PST            4.40         +      Not Applicable
  02/08/2026 10 PM PST            4.59         +      Not Applicable
  02/08/2026 11 PM PST            4.69         +      Not Applicable
  02/09/2026 12 AM PST            4.63         -      Not Applicable
  02/09/2026 01 AM PST            4.34         -      Not Applicable
  02/09/2026 02 AM PST            4.05         -      Not Applicable
  02/09/2026 03 AM PST            3.91         -      Not Applicable
  02/09/2026 04 AM PST            3.87         -      Not Applicable
  02/09/2026 05 AM PST            4.07         +      Not Applicable
  02/09/2026 06 AM PST            4.59         +      Not Applicable
  02/09/2026 07 AM PST            5.15         +      Not Applicable
  02/09/2026 08 AM PST            5.53         +      Not Applicable
  02/09/2026 09 AM PST            5.75         +      Not Applicable
  02/09/2026 10 AM PST            6.14         +      Not Applicable
  02/09/2026 11 AM PST            6.20         +      Not Applicable
  02/09/2026 12 PM PST            5.90         -      Not Applicable
  02/09/2026 01 PM PST            5.32         -      Not Applicable
  02/09/2026 02 PM PST            4.82         -      Not Applicable
  02/09/2026 03 PM PST            4.37         -      Not Applicable
  02/09/2026 04 PM PST            3.90         -      Not Applicable
  02/09/2026 05 PM PST            3.43         -      Not Applicable
  02/09/2026 06 PM PST            3.06         -      Not Applicable
  02/09/2026 07 PM PST            2.85         -      Not Applicable
  02/09/2026 08 PM PST            2.92         +      Not Applicable
  02/09/2026 09 PM PST            3.52         +      Not Applicable
  02/09/2026 10 PM PST            4.13         +      Not Applicable
  02/09/2026 11 PM PST            4.44         +      Not Applicable
  02/10/2026 12 AM PST            4.66         +      Not Applicable
  02/10/2026 01 AM PST            4.75         +      Not Applicable
  02/10/2026 02 AM PST            4.76         +      Not Applicable
  02/10/2026 03 AM PST            4.77         +      Not Applicable
  02/10/2026 04 AM PST            4.85         +      Not Applicable
  02/10/2026 05 AM PST            5.03         +      Not Applicable
  02/10/2026 06 AM PST            5.29         +      Not Applicable
  02/10/2026 07 AM PST            5.59         +      Not Applicable
  02/10/2026 08 AM PST            5.89         +      Not Applicable
  02/10/2026 09 AM PST            6.15         +      Not Applicable
  02/10/2026 10 AM PST            6.30         +      Not Applicable
  02/10/2026 11 AM PST            6.50         +      Not Applicable
  02/10/2026 12 PM PST            6.49         -      Not Applicable
  02/10/2026 01 PM PST            6.14         -      Not Applicable
  02/10/2026 02 PM PST            5.59         -      Not Applicable
  02/10/2026 03 PM PST            5.13         -      Not Applicable
  02/10/2026 04 PM PST            4.72         -      Not Applicable
  02/10/2026 05 PM PST            4.24         -      Not Applicable
  02/10/2026 06 PM PST            3.79         -      Not Applicable
  02/10/2026 07 PM PST            3.41         -      Not Applicable
  02/10/2026 08 PM PST            3.14         -      Not Applicable
  02/10/2026 09 PM PST            3.10         -      Not Applicable
  02/10/2026 10 PM PST            3.58         +      Not Applicable
  02/10/2026 11 PM PST            4.27         +      Not Applicable
  02/11/2026 12 AM PST            4.68         +      Not Applicable
  02/11/2026 01 AM PST            4.91         +      Not Applicable
  02/11/2026 02 AM PST            5.05         +      Not Applicable
  02/11/2026 03 AM PST            5.16         +      Not Applicable
  02/11/2026 04 AM PST            5.19         +      Not Applicable
  02/11/2026 05 AM PST            5.10         -      Not Applicable
  02/11/2026 06 AM PST            5.14         +      Not Applicable
  02/11/2026 07 AM PST            5.52         +      Not Applicable
  02/11/2026 08 AM PST            5.90         +      Not Applicable
  02/11/2026 09 AM PST            6.20         +      Not Applicable
  02/11/2026 10 AM PST            6.50         +      Not Applicable
  02/11/2026 11 AM PST            6.83         +      Not Applicable
  02/11/2026 12 PM PST            7.04         +      Not Applicable
  02/11/2026 01 PM PST            7.00         -      Not Applicable
  02/11/2026 02 PM PST            6.56         -      Not Applicable
  02/11/2026 03 PM PST            6.03         -      Not Applicable
  02/11/2026 04 PM PST            5.57         -      Not Applicable
  02/11/2026 05 PM PST            5.12         -      Not Applicable
  02/11/2026 06 PM PST            4.61         -      Not Applicable
  02/11/2026 07 PM PST            4.10         -      Not Applicable
  02/11/2026 08 PM PST            3.65         -      Not Applicable
  02/11/2026 09 PM PST            3.30         -      Not Applicable
  02/11/2026 10 PM PST            3.16         -      Not Applicable
  02/11/2026 11 PM PST            3.55         +      Not Applicable
  02/12/2026 12 AM PST            4.38         +      Not Applicable
  02/12/2026 01 AM PST            4.88         +      Not Applicable
  02/12/2026 02 AM PST            5.16         +      Not Applicable
  02/12/2026 03 AM PST            5.37         +      Not Applicable
  02/12/2026 04 AM PST            5.46         +      Not Applicable
  02/12/2026 05 AM PST            5.42         -      Not Applicable
  02/12/2026 06 AM PST            5.20         -      Not Applicable
  02/12/2026 07 AM PST            4.97         -      Not Applicable
  02/12/2026 08 AM PST            5.10         +      Not Applicable
#
# FORECAST
#
# Date & Time  (Local)    Stage (Feet)     Trend     Forecast Status
# ------------------------------------------------------------------
  02/12/2026 09 AM PST            5.37                Not Applicable
  02/12/2026 10 AM PST            5.73         +      Not Applicable
  02/12/2026 11 AM PST            6.10         +      Not Applicable
  02/12/2026 12 PM PST            6.35         +      Not Applicable
  02/12/2026 01 PM PST            6.43         +      Not Applicable
  02/12/2026 02 PM PST            6.28         -      Not Applicable
  02/12/2026 03 PM PST            5.91         -      Not Applicable
  02/12/2026 04 PM PST            5.35         -      Not Applicable
  02/12/2026 05 PM PST            4.69         -      Not Applicable
  02/12/2026 06 PM PST            4.00         -      Not Applicable
  02/12/2026 07 PM PST            3.34         -      Not Applicable
  02/12/2026 08 PM PST            2.74         -      Not Applicable
  02/12/2026 09 PM PST            2.35         -      Not Applicable
  02/12/2026 10 PM PST            2.25         -      Not Applicable
  02/12/2026 11 PM PST            2.48         +      Not Applicable
  02/13/2026 12 AM PST            3.14         +      Not Applicable
  02/13/2026 01 AM PST            3.86         +      Not Applicable
  02/13/2026 02 AM PST            4.60         +      Not Applicable
  02/13/2026 03 AM PST            5.09         +      Not Applicable
  02/13/2026 04 AM PST            5.29         +      Not Applicable
  02/13/2026 05 AM PST            5.28         -      Not Applicable
  02/13/2026 06 AM PST            5.16         -      Not Applicable
  02/13/2026 07 AM PST            5.04         -      Not Applicable
  02/13/2026 08 AM PST            5.02         -      Not Applicable
  02/13/2026 09 AM PST            5.16         +      Not Applicable
  02/13/2026 10 AM PST            5.48         +      Not Applicable
  02/13/2026 11 AM PST            5.91         +      Not Applicable
  02/13/2026 12 PM PST            6.33         +      Not Applicable
  02/13/2026 01 PM PST            6.62         +      Not Applicable
  02/13/2026 02 PM PST            6.70         +      Not Applicable
  02/13/2026 03 PM PST            6.50         -      Not Applicable
  02/13/2026 04 PM PST            6.01         -      Not Applicable
  02/13/2026 05 PM PST            5.29         -      Not Applicable
  02/13/2026 06 PM PST            4.49         -      Not Applicable
  02/13/2026 07 PM PST            3.68         -      Not Applicable
  02/13/2026 08 PM PST            3.01         -      Not Applicable
  02/13/2026 09 PM PST            2.42         -      Not Applicable
  02/13/2026 10 PM PST            2.25         -      Not Applicable
  02/13/2026 11 PM PST            2.41         +      Not Applicable
  02/14/2026 12 AM PST            2.93         +      Not Applicable
  02/14/2026 01 AM PST            3.59         +      Not Applicable
  02/14/2026 02 AM PST            4.34         +      Not Applicable
  02/14/2026 03 AM PST            4.92         +      Not Applicable
  02/14/2026 04 AM PST            5.34         +      Not Applicable
  02/14/2026 05 AM PST            5.49         +      Not Applicable
  02/14/2026 06 AM PST            5.41         -      Not Applicable
  02/14/2026 07 AM PST            5.20         -      Not Applicable
  02/14/2026 08 AM PST            5.00         -      Not Applicable
  02/14/2026 09 AM PST            4.93         -      Not Applicable
  02/14/2026 10 AM PST            5.10         +      Not Applicable
  02/14/2026 11 AM PST            5.47         +      Not Applicable
  02/14/2026 12 PM PST            5.96         +      Not Applicable
  02/14/2026 01 PM PST            6.44         +      Not Applicable
  02/14/2026 02 PM PST            6.78         +      Not Applicable
  02/14/2026 03 PM PST            6.88         +      Not Applicable
  02/14/2026 04 PM PST            6.68         -      Not Applicable
  02/14/2026 05 PM PST            6.19         -      Not Applicable
  02/14/2026 06 PM PST            5.45         -      Not Applicable
  02/14/2026 07 PM PST            4.63         -      Not Applicable
  02/14/2026 08 PM PST            3.80         -      Not Applicable
  02/14/2026 09 PM PST            3.12         -      Not Applicable
  02/14/2026 10 PM PST            2.52         -      Not Applicable
  02/14/2026 11 PM PST            2.34         -      Not Applicable
  02/15/2026 12 AM PST            2.51         +      Not Applicable
  02/15/2026 01 AM PST            3.07         +      Not Applicable
  02/15/2026 02 AM PST            3.71         +      Not Applicable
  02/15/2026 03 AM PST            4.48         +      Not Applicable
  02/15/2026 04 AM PST            5.10         +      Not Applicable
  02/15/2026 05 AM PST            5.52         +      Not Applicable
  02/15/2026 06 AM PST            5.66         +      Not Applicable
  02/15/2026 07 AM PST            5.49         -      Not Applicable
  02/15/2026 08 AM PST            5.13         -      Not Applicable
  02/15/2026 09 AM PST            4.78         -      Not Applicable
  02/15/2026 10 AM PST            4.66         -      Not Applicable
  02/15/2026 11 AM PST            4.82         +      Not Applicable
  02/15/2026 12 PM PST            5.23         +      Not Applicable
  02/15/2026 01 PM PST            5.75         +      Not Applicable
  02/15/2026 02 PM PST            6.29         +      Not Applicable
  02/15/2026 03 PM PST            6.66         +      Not Applicable
  02/15/2026 04 PM PST            6.77         +      Not Applicable
  02/15/2026 05 PM PST            6.57         -      Not Applicable
  02/15/2026 06 PM PST            6.07         -      Not Applicable
  02/15/2026 07 PM PST            5.32         -      Not Applicable
  02/15/2026 08 PM PST            4.49         -      Not Applicable
  02/15/2026 09 PM PST            3.64         -      Not Applicable
  02/15/2026 10 PM PST            2.92         -      Not Applicable
  02/15/2026 11 PM PST            2.34         -      Not Applicable
  02/16/2026 12 AM PST            2.17         -      Not Applicable
  02/16/2026 01 AM PST            2.43         +      Not Applicable
  02/16/2026 02 AM PST            3.18         +      Not Applicable
  02/16/2026 03 AM PST            4.04         +      Not Applicable
  02/16/2026 04 AM PST            4.85         +      Not Applicable
  02/16/2026 05 AM PST            5.42         +      Not Applicable
  02/16/2026 06 AM PST            5.63         +      Not Applicable
  02/16/2026 07 AM PST            5.48         -      Not Applicable
  02/16/2026 08 AM PST            5.08         -      Not Applicable
  02/16/2026 09 AM PST            4.59         -      Not Applicable
  02/16/2026 10 AM PST            4.21         -      Not Applicable
  02/16/2026 11 AM PST            4.08         -      Not Applicable
  02/16/2026 12 PM PST            4.26         +      Not Applicable
  02/16/2026 01 PM PST            4.69         +      Not Applicable
  02/16/2026 02 PM PST            5.27         +      Not Applicable
  02/16/2026 03 PM PST            5.83         +      Not Applicable
  02/16/2026 04 PM PST            6.24         +      Not Applicable
  02/16/2026 05 PM PST            6.35         +      Not Applicable
  02/16/2026 06 PM PST            6.08         -      Not Applicable
  02/16/2026 07 PM PST            5.43         -      Not Applicable
  02/16/2026 08 PM PST            4.58         -      Not Applicable
  02/16/2026 09 PM PST            3.64         -      Not Applicable
  02/16/2026 10 PM PST            2.74         -      Not Applicable
  02/16/2026 11 PM PST            2.06         -      Not Applicable
  02/17/2026 12 AM PST            1.77         -      Not Applicable
  02/17/2026 01 AM PST            2.06         +      Not Applicable
  02/17/2026 02 AM PST            2.75         +      Not Applicable
  02/17/2026 03 AM PST            3.69         +      Not Applicable
  02/17/2026 04 AM PST            4.55         +      Not Applicable
#
# 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.