SAN JOAQUIN RIVER - PATTERSON (PATC1)
Latitude: 37.49º NLongitude: 121.08º WElevation: 97 FeetForecast Type: Official Location
Location: Stanislaus County in CaliforniaBulletin Group: San JoaquinRiver Group: San Joaquin
Issuance Time: Feb 23 2026 at 2:03 PM PSTNext Issuance: Feb 24 2026 at 9:00 AM PST
Action/Monitor: 48.0 FeetMinor Flood: 54.7 FeetModerate Flood: 57.3 FeetMajor Flood: 58.3 Feet

# Tabular Observed and Forecast Hydrograph Information
#
# Location: San Joaquin River - Patterson (PATC1)
#
# File Generation Time:  02/23/2026 at 02:04 PM PST
# Data Interval:  1 Hour
#
# Most Recent Date & Time of Maximum Observed:  02/23/2026 at 01:00 PM PST
# Maximum Observed Stage:                       38.47 Feet
# Maximum Observed Flow:                        3984 cfs
#
# Earliest Date & Time of Maximum Forecast:     02/23/2026 at 06:00 PM PST
# Maximum Forecast Stage:                       38.52 Feet
# Maximum Forecast Flow:                        4014 cfs
#
# OBSERVED
#
# Date & Time  (Local)    Stage (Feet)     Flow (cfs)     Trend     Observed Status
# ---------------------------------------------------------------------------------
  02/18/2026 02 PM PST           33.90           1577                        Normal
  02/18/2026 03 PM PST           33.95           1600         +              Normal
  02/18/2026 04 PM PST           34.00           1623         +              Normal
  02/18/2026 05 PM PST           34.05           1646         +              Normal
  02/18/2026 06 PM PST           34.11           1674         +              Normal
  02/18/2026 07 PM PST           34.18           1706         +              Normal
  02/18/2026 08 PM PST           34.25           1739         +              Normal
  02/18/2026 09 PM PST           34.32           1773         +              Normal
  02/18/2026 10 PM PST           34.39           1806         +              Normal
  02/18/2026 11 PM PST           34.47           1844         +              Normal
  02/19/2026 12 AM PST           34.54           1877         +              Normal
  02/19/2026 01 AM PST           34.62           1914         +              Normal
  02/19/2026 02 AM PST           34.68           1942         +              Normal
  02/19/2026 03 AM PST           34.74           1970         +              Normal
  02/19/2026 04 AM PST           34.81           2003         +              Normal
  02/19/2026 05 AM PST           34.89           2041         +              Normal
  02/19/2026 06 AM PST           34.96           2075         +              Normal
  02/19/2026 07 AM PST           35.05           2118         +              Normal
  02/19/2026 08 AM PST           35.12           2152         +              Normal
  02/19/2026 09 AM PST           35.18           2182         +              Normal
  02/19/2026 10 AM PST           35.25           2216         +              Normal
  02/19/2026 11 AM PST           35.31           2246         +              Normal
  02/19/2026 12 PM PST           35.37           2276         +              Normal
  02/19/2026 01 PM PST           35.42           2301         +              Normal
  02/19/2026 02 PM PST           35.49           2336         +              Normal
  02/19/2026 03 PM PST           35.55           2366         +              Normal
  02/19/2026 04 PM PST           35.61           2397         +              Normal
  02/19/2026 05 PM PST           35.69           2437         +              Normal
  02/19/2026 06 PM PST           35.72           2453         +              Normal
  02/19/2026 07 PM PST           35.77           2478         +              Normal
  02/19/2026 08 PM PST           35.83           2509         +              Normal
  02/19/2026 09 PM PST           35.87           2530         +              Normal
  02/19/2026 10 PM PST           35.90           2546         +              Normal
  02/19/2026 11 PM PST           35.96           2577         +              Normal
  02/20/2026 12 AM PST           36.02           2609         +              Normal
  02/20/2026 01 AM PST           36.06           2630         +              Normal
  02/20/2026 02 AM PST           36.11           2656         +              Normal
  02/20/2026 03 AM PST           36.17           2688         +              Normal
  02/20/2026 04 AM PST           36.23           2720         +              Normal
  02/20/2026 05 AM PST           36.28           2746         +              Normal
  02/20/2026 06 AM PST           36.34           2779         +              Normal
  02/20/2026 07 AM PST           36.40           2811         +              Normal
  02/20/2026 08 AM PST           36.46           2843         +              Normal
  02/20/2026 09 AM PST           36.52           2876         +              Normal
  02/20/2026 10 AM PST           36.56           2898         +              Normal
  02/20/2026 11 AM PST           36.61           2925         +              Normal
  02/20/2026 12 PM PST           36.67           2958         +              Normal
  02/20/2026 01 PM PST           36.71           2980         +              Normal
  02/20/2026 02 PM PST           36.73           2991         +              Normal
  02/20/2026 03 PM PST           36.79           3025         +              Normal
  02/20/2026 04 PM PST           36.81           3036         +              Normal
  02/20/2026 05 PM PST           36.83           3047         +              Normal
  02/20/2026 06 PM PST           36.85           3058         +              Normal
  02/20/2026 07 PM PST           36.87           3069         +              Normal
  02/20/2026 08 PM PST           36.91           3091         +              Normal
  02/20/2026 09 PM PST           36.94           3108         +              Normal
  02/20/2026 10 PM PST           36.96           3119         +              Normal
  02/20/2026 11 PM PST           37.00           3141         +              Normal
  02/21/2026 12 AM PST           37.02           3152         +              Normal
  02/21/2026 01 AM PST           37.06           3174         +              Normal
  02/21/2026 02 AM PST           37.07           3179         +              Normal
  02/21/2026 03 AM PST           37.10           3196         +              Normal
  02/21/2026 04 AM PST           37.16           3229         +              Normal
  02/21/2026 05 AM PST           37.19           3246         +              Normal
  02/21/2026 06 AM PST           37.23           3268         +              Normal
  02/21/2026 07 AM PST           37.25           3279         +              Normal
  02/21/2026 08 AM PST           37.28           3296         +              Normal
  02/21/2026 09 AM PST           37.33           3324         +              Normal
  02/21/2026 10 AM PST           37.37           3346         +              Normal
  02/21/2026 11 AM PST           37.40           3363         +              Normal
  02/21/2026 12 PM PST           37.43           3380         +              Normal
  02/21/2026 01 PM PST           37.46           3397         +              Normal
  02/21/2026 02 PM PST           37.49           3414         +              Normal
  02/21/2026 03 PM PST           37.52           3431         +              Normal
  02/21/2026 04 PM PST           37.54           3442         +              Normal
  02/21/2026 05 PM PST           37.56           3453         +              Normal
  02/21/2026 06 PM PST           37.56           3453         0              Normal
  02/21/2026 07 PM PST           37.59           3470         +              Normal
  02/21/2026 08 PM PST           37.60           3476         +              Normal
  02/21/2026 09 PM PST           37.64           3499         +              Normal
  02/21/2026 10 PM PST           37.64           3499         0              Normal
  02/21/2026 11 PM PST           37.67           3516         +              Normal
  02/22/2026 12 AM PST           37.69           3527         +              Normal
  02/22/2026 01 AM PST           37.71           3539         +              Normal
  02/22/2026 02 AM PST           37.73           3550         +              Normal
  02/22/2026 03 AM PST           37.75           3562         +              Normal
  02/22/2026 04 AM PST           37.77           3573         +              Normal
  02/22/2026 05 AM PST           37.80           3591         +              Normal
  02/22/2026 06 AM PST           37.84           3614         +              Normal
  02/22/2026 07 AM PST           37.85           3619         +              Normal
  02/22/2026 08 AM PST           37.87           3631         +              Normal
  02/22/2026 09 AM PST           37.90           3648         +              Normal
  02/22/2026 10 AM PST           37.93           3666         +              Normal
  02/22/2026 11 AM PST           37.96           3683         +              Normal
  02/22/2026 12 PM PST           37.98           3695         +              Normal
  02/22/2026 01 PM PST           38.00           3706         +              Normal
  02/22/2026 02 PM PST           38.02           3718         +              Normal
  02/22/2026 03 PM PST           38.04           3730         +              Normal
  02/22/2026 04 PM PST           38.06           3741         +              Normal
  02/22/2026 05 PM PST           38.07           3747         +              Normal
  02/22/2026 06 PM PST           38.08           3753         +              Normal
  02/22/2026 07 PM PST           38.12           3777         +              Normal
  02/22/2026 08 PM PST           38.13           3782         +              Normal
  02/22/2026 09 PM PST           38.16           3800         +              Normal
  02/22/2026 10 PM PST           38.19           3818         +              Normal
  02/22/2026 11 PM PST           38.21           3830         +              Normal
  02/23/2026 12 AM PST           38.22           3835         +              Normal
  02/23/2026 01 AM PST           38.25           3853         +              Normal
  02/23/2026 02 AM PST           38.27           3865         +              Normal
  02/23/2026 03 AM PST           38.28           3871         +              Normal
  02/23/2026 04 AM PST           38.31           3889         +              Normal
  02/23/2026 05 AM PST           38.32           3895         +              Normal
  02/23/2026 06 AM PST           38.34           3906         +              Normal
  02/23/2026 07 AM PST           38.36           3918         +              Normal
  02/23/2026 08 AM PST           38.37           3924         +              Normal
  02/23/2026 09 AM PST           38.39           3936         +              Normal
  02/23/2026 10 AM PST           38.42           3954         +              Normal
  02/23/2026 11 AM PST           38.44           3966         +              Normal
  02/23/2026 12 PM PST           38.46           3978         +              Normal
  02/23/2026 01 PM PST           38.47           3984         +              Normal
#
# FORECAST
#
# Date & Time  (Local)    Stage (Feet)     Flow (cfs)     Trend     Forecast Status
# ---------------------------------------------------------------------------------
  02/23/2026 02 PM PST           38.48           3990                        Normal
  02/23/2026 03 PM PST           38.49           3996         +              Normal
  02/23/2026 04 PM PST           38.50           4002         +              Normal
  02/23/2026 05 PM PST           38.51           4008         +              Normal
  02/23/2026 06 PM PST           38.52           4014         +              Normal
  02/23/2026 07 PM PST           38.52           4014         0              Normal
  02/23/2026 08 PM PST           38.52           4014         0              Normal
  02/23/2026 09 PM PST           38.52           4014         0              Normal
  02/23/2026 10 PM PST           38.52           4014         0              Normal
  02/23/2026 11 PM PST           38.52           4014         0              Normal
  02/24/2026 12 AM PST           38.51           4008         -              Normal
  02/24/2026 01 AM PST           38.50           4002         -              Normal
  02/24/2026 02 AM PST           38.49           3996         -              Normal
  02/24/2026 03 AM PST           38.48           3990         -              Normal
  02/24/2026 04 AM PST           38.47           3984         -              Normal
  02/24/2026 05 AM PST           38.45           3972         -              Normal
  02/24/2026 06 AM PST           38.43           3960         -              Normal
  02/24/2026 07 AM PST           38.41           3948         -              Normal
  02/24/2026 08 AM PST           38.40           3942         -              Normal
  02/24/2026 09 AM PST           38.37           3924         -              Normal
  02/24/2026 10 AM PST           38.35           3912         -              Normal
  02/24/2026 11 AM PST           38.33           3901         -              Normal
  02/24/2026 12 PM PST           38.30           3883         -              Normal
  02/24/2026 01 PM PST           38.27           3865         -              Normal
  02/24/2026 02 PM PST           38.25           3853         -              Normal
  02/24/2026 03 PM PST           38.22           3835         -              Normal
  02/24/2026 04 PM PST           38.19           3818         -              Normal
  02/24/2026 05 PM PST           38.16           3800         -              Normal
  02/24/2026 06 PM PST           38.14           3788         -              Normal
  02/24/2026 07 PM PST           38.11           3771         -              Normal
  02/24/2026 08 PM PST           38.08           3753         -              Normal
  02/24/2026 09 PM PST           38.04           3730         -              Normal
  02/24/2026 10 PM PST           38.01           3712         -              Normal
  02/24/2026 11 PM PST           37.97           3689         -              Normal
  02/25/2026 12 AM PST           37.94           3672         -              Normal
  02/25/2026 01 AM PST           37.90           3648         -              Normal
  02/25/2026 02 AM PST           37.87           3631         -              Normal
  02/25/2026 03 AM PST           37.84           3614         -              Normal
  02/25/2026 04 AM PST           37.80           3591         -              Normal
  02/25/2026 05 AM PST           37.77           3573         -              Normal
  02/25/2026 06 AM PST           37.74           3556         -              Normal
  02/25/2026 07 AM PST           37.71           3539         -              Normal
  02/25/2026 08 AM PST           37.68           3522         -              Normal
  02/25/2026 09 AM PST           37.65           3505         -              Normal
  02/25/2026 10 AM PST           37.62           3487         -              Normal
  02/25/2026 11 AM PST           37.59           3470         -              Normal
  02/25/2026 12 PM PST           37.56           3453         -              Normal
  02/25/2026 01 PM PST           37.53           3436         -              Normal
  02/25/2026 02 PM PST           37.50           3419         -              Normal
  02/25/2026 03 PM PST           37.47           3402         -              Normal
  02/25/2026 04 PM PST           37.44           3385         -              Normal
  02/25/2026 05 PM PST           37.41           3369         -              Normal
  02/25/2026 06 PM PST           37.38           3352         -              Normal
  02/25/2026 07 PM PST           37.36           3340         -              Normal
  02/25/2026 08 PM PST           37.33           3324         -              Normal
  02/25/2026 09 PM PST           37.30           3307         -              Normal
  02/25/2026 10 PM PST           37.27           3290         -              Normal
  02/25/2026 11 PM PST           37.24           3273         -              Normal
  02/26/2026 12 AM PST           37.22           3262         -              Normal
  02/26/2026 01 AM PST           37.19           3246         -              Normal
  02/26/2026 02 AM PST           37.16           3229         -              Normal
  02/26/2026 03 AM PST           37.14           3218         -              Normal
  02/26/2026 04 AM PST           37.11           3201         -              Normal
  02/26/2026 05 AM PST           37.08           3185         -              Normal
  02/26/2026 06 AM PST           37.06           3174         -              Normal
  02/26/2026 07 AM PST           37.03           3157         -              Normal
  02/26/2026 08 AM PST           37.01           3146         -              Normal
  02/26/2026 09 AM PST           36.98           3130         -              Normal
  02/26/2026 10 AM PST           36.96           3119         -              Normal
  02/26/2026 11 AM PST           36.94           3108         -              Normal
  02/26/2026 12 PM PST           36.91           3091         -              Normal
  02/26/2026 01 PM PST           36.89           3080         -              Normal
  02/26/2026 02 PM PST           36.87           3069         -              Normal
  02/26/2026 03 PM PST           36.84           3052         -              Normal
  02/26/2026 04 PM PST           36.82           3041         -              Normal
  02/26/2026 05 PM PST           36.80           3030         -              Normal
  02/26/2026 06 PM PST           36.78           3019         -              Normal
  02/26/2026 07 PM PST           36.76           3008         -              Normal
  02/26/2026 08 PM PST           36.74           2997         -              Normal
  02/26/2026 09 PM PST           36.72           2986         -              Normal
  02/26/2026 10 PM PST           36.70           2975         -              Normal
  02/26/2026 11 PM PST           36.68           2964         -              Normal
  02/27/2026 12 AM PST           36.66           2953         -              Normal
  02/27/2026 01 AM PST           36.64           2942         -              Normal
  02/27/2026 02 AM PST           36.62           2931         -              Normal
  02/27/2026 03 AM PST           36.60           2920         -              Normal
  02/27/2026 04 AM PST           36.58           2909         -              Normal
  02/27/2026 05 AM PST           36.56           2898         -              Normal
  02/27/2026 06 AM PST           36.55           2892         -              Normal
  02/27/2026 07 AM PST           36.53           2882         -              Normal
  02/27/2026 08 AM PST           36.51           2871         -              Normal
  02/27/2026 09 AM PST           36.49           2860         -              Normal
  02/27/2026 10 AM PST           36.48           2854         -              Normal
  02/27/2026 11 AM PST           36.46           2843         -              Normal
  02/27/2026 12 PM PST           36.45           2838         -              Normal
  02/27/2026 01 PM PST           36.43           2827         -              Normal
  02/27/2026 02 PM PST           36.42           2822         -              Normal
  02/27/2026 03 PM PST           36.40           2811         -              Normal
  02/27/2026 04 PM PST           36.39           2806         -              Normal
  02/27/2026 05 PM PST           36.37           2795         -              Normal
  02/27/2026 06 PM PST           36.36           2789         -              Normal
  02/27/2026 07 PM PST           36.34           2779         -              Normal
  02/27/2026 08 PM PST           36.33           2773         -              Normal
  02/27/2026 09 PM PST           36.32           2768         -              Normal
  02/27/2026 10 PM PST           36.30           2757         -              Normal
  02/27/2026 11 PM PST           36.29           2752         -              Normal
  02/28/2026 12 AM PST           36.28           2746         -              Normal
  02/28/2026 01 AM PST           36.27           2741         -              Normal
  02/28/2026 02 AM PST           36.26           2736         -              Normal
  02/28/2026 03 AM PST           36.24           2725         -              Normal
  02/28/2026 04 AM PST           36.23           2720         -              Normal
#
# NOTE 1: Stages are rounded to the nearest hundredth (.01) of a foot.
# NOTE 2: Flows are rounded to the nearest (1) cfs.
# NOTE 3: Trends are determined using hourly change in unrounded stage and flow.
# NOTE 4: Maximum Values are determined using unrounded stage and flow.