SAN JOAQUIN RIVER - VERNALIS (VNSC1)
Latitude: 37.68º NLongitude: 121.27º WElevation: 35 Feet
Location: San Joaquin County in CaliforniaBulletin Group: San JoaquinRiver Group: San Joaquin
Issuance Time: Jan 15 2026 at 2:00 PM PSTNext Issuance: Jan 16 2026 at 9:00 AM PST
Action/Monitor: 24.5 FeetMinor Flood: 29.0 FeetModerate Flood: 32.0 FeetMajor Flood: 37.3 Feet

# Tabular Observed and Forecast Hydrograph Information
#
# Location: San Joaquin River - Vernalis (VNSC1)
#
# File Generation Time:  01/15/2026 at 02:00 PM PST
# Data Interval:  1 Hour
#
# Most Recent Date & Time of Maximum Observed:  01/10/2026 at 03:00 PM PST
# Maximum Observed Stage:                       10.94 Feet
# Maximum Observed Flow:                        3139 cfs
#
# Earliest Date & Time of Maximum Forecast:     01/15/2026 at 02:00 PM PST
# Maximum Forecast Stage:                       10.35 Feet
# Maximum Forecast Flow:                        2637 cfs
#
# OBSERVED
#
# Date & Time  (Local)    Stage (Feet)     Flow (cfs)     Trend     Observed Status
# ---------------------------------------------------------------------------------
  01/10/2026 02 PM PST           10.94           3139                        Normal
  01/10/2026 03 PM PST           10.94           3139         0              Normal
  01/10/2026 04 PM PST           10.93           3131         -              Normal
  01/10/2026 05 PM PST           10.93           3131         0              Normal
  01/10/2026 06 PM PST           10.93           3131         0              Normal
  01/10/2026 07 PM PST           10.91           3113         -              Normal
  01/10/2026 08 PM PST           10.92           3122         +              Normal
  01/10/2026 09 PM PST           10.92           3122         0              Normal
  01/10/2026 10 PM PST           10.92           3122         0              Normal
  01/10/2026 11 PM PST           10.91           3113         -              Normal
  01/11/2026 12 AM PST           10.90           3104         -              Normal
  01/11/2026 01 AM PST           10.90           3104         0              Normal
  01/11/2026 02 AM PST           10.90           3104         0              Normal
  01/11/2026 03 AM PST           10.90           3104         0              Normal
  01/11/2026 04 AM PST           10.89           3095         -              Normal
  01/11/2026 05 AM PST           10.89           3095         0              Normal
  01/11/2026 06 AM PST           10.89           3095         0              Normal
  01/11/2026 07 AM PST           10.88           3087         -              Normal
  01/11/2026 08 AM PST           10.88           3087         0              Normal
  01/11/2026 09 AM PST           10.87           3078         -              Normal
  01/11/2026 10 AM PST           10.87           3078         0              Normal
  01/11/2026 11 AM PST           10.87           3078         0              Normal
  01/11/2026 12 PM PST           10.86           3069         -              Normal
  01/11/2026 01 PM PST           10.86           3069         0              Normal
  01/11/2026 02 PM PST           10.85           3060         -              Normal
  01/11/2026 03 PM PST           10.85           3060         0              Normal
  01/11/2026 04 PM PST           10.85           3060         0              Normal
  01/11/2026 05 PM PST           10.84           3052         -              Normal
  01/11/2026 06 PM PST           10.84           3052         0              Normal
  01/11/2026 07 PM PST           10.83           3043         -              Normal
  01/11/2026 08 PM PST           10.82           3034         -              Normal
  01/11/2026 09 PM PST           10.82           3034         0              Normal
  01/11/2026 10 PM PST           10.81           3025         -              Normal
  01/11/2026 11 PM PST           10.80           3017         -              Normal
  01/12/2026 12 AM PST           10.79           3008         -              Normal
  01/12/2026 01 AM PST           10.79           3008         0              Normal
  01/12/2026 02 AM PST           10.78           2999         -              Normal
  01/12/2026 03 AM PST           10.77           2991         -              Normal
  01/12/2026 04 AM PST           10.77           2991         0              Normal
  01/12/2026 05 AM PST           10.76           2982         -              Normal
  01/12/2026 06 AM PST           10.75           2973         -              Normal
  01/12/2026 07 AM PST           10.75           2973         0              Normal
  01/12/2026 08 AM PST           10.74           2965         -              Normal
  01/12/2026 09 AM PST           10.73           2956         -              Normal
  01/12/2026 10 AM PST           10.72           2948         -              Normal
  01/12/2026 11 AM PST           10.72           2948         0              Normal
  01/12/2026 12 PM PST           10.72           2948         0              Normal
  01/12/2026 01 PM PST           10.71           2939         -              Normal
  01/12/2026 02 PM PST           10.71           2939         0              Normal
  01/12/2026 03 PM PST           10.70           2930         -              Normal
  01/12/2026 04 PM PST           10.70           2930         0              Normal
  01/12/2026 05 PM PST           10.69           2922         -              Normal
  01/12/2026 06 PM PST           10.69           2922         0              Normal
  01/12/2026 07 PM PST           10.68           2913         -              Normal
  01/12/2026 08 PM PST           10.68           2913         0              Normal
  01/12/2026 09 PM PST           10.67           2905         -              Normal
  01/12/2026 10 PM PST           10.66           2896         -              Normal
  01/12/2026 11 PM PST           10.66           2896         0              Normal
  01/13/2026 12 AM PST           10.65           2888         -              Normal
  01/13/2026 01 AM PST           10.65           2888         0              Normal
  01/13/2026 02 AM PST           10.64           2879         -              Normal
  01/13/2026 03 AM PST           10.63           2871         -              Normal
  01/13/2026 04 AM PST           10.63           2871         0              Normal
  01/13/2026 05 AM PST           10.63           2871         0              Normal
  01/13/2026 06 AM PST           10.62           2862         -              Normal
  01/13/2026 07 AM PST           10.62           2862         0              Normal
  01/13/2026 08 AM PST           10.61           2854         -              Normal
  01/13/2026 09 AM PST           10.60           2845         -              Normal
  01/13/2026 10 AM PST           10.60           2845         0              Normal
  01/13/2026 11 AM PST           10.60           2845         0              Normal
  01/13/2026 12 PM PST           10.59           2837         -              Normal
  01/13/2026 01 PM PST           10.59           2837         0              Normal
  01/13/2026 02 PM PST           10.58           2828         -              Normal
  01/13/2026 03 PM PST           10.58           2828         0              Normal
  01/13/2026 04 PM PST           10.57           2820         -              Normal
  01/13/2026 05 PM PST           10.57           2820         0              Normal
  01/13/2026 06 PM PST           10.56           2811         -              Normal
  01/13/2026 07 PM PST           10.56           2811         0              Normal
  01/13/2026 08 PM PST           10.55           2803         -              Normal
  01/13/2026 09 PM PST           10.54           2795         -              Normal
  01/13/2026 10 PM PST           10.54           2795         0              Normal
  01/13/2026 11 PM PST           10.53           2786         -              Normal
  01/14/2026 12 AM PST           10.53           2786         0              Normal
  01/14/2026 01 AM PST           10.52           2778         -              Normal
  01/14/2026 02 AM PST           10.52           2778         0              Normal
  01/14/2026 03 AM PST           10.51           2769         -              Normal
  01/14/2026 04 AM PST           10.51           2769         0              Normal
  01/14/2026 05 AM PST           10.50           2761         -              Normal
  01/14/2026 06 AM PST           10.49           2753         -              Normal
  01/14/2026 07 AM PST           10.49           2753         0              Normal
  01/14/2026 08 AM PST           10.48           2744         -              Normal
  01/14/2026 09 AM PST           10.48           2744         0              Normal
  01/14/2026 10 AM PST           10.47           2736         -              Normal
  01/14/2026 11 AM PST           10.47           2736         0              Normal
  01/14/2026 12 PM PST           10.46           2728         -              Normal
  01/14/2026 01 PM PST           10.46           2728         0              Normal
  01/14/2026 02 PM PST           10.46           2728         0              Normal
  01/14/2026 03 PM PST           10.45           2719         -              Normal
  01/14/2026 04 PM PST           10.45           2719         0              Normal
  01/14/2026 05 PM PST           10.44           2711         -              Normal
  01/14/2026 06 PM PST           10.44           2711         0              Normal
  01/14/2026 07 PM PST           10.44           2711         0              Normal
  01/14/2026 08 PM PST           10.44           2711         0              Normal
  01/14/2026 09 PM PST           10.43           2703         -              Normal
  01/14/2026 10 PM PST           10.43           2703         0              Normal
  01/14/2026 11 PM PST           10.42           2695         -              Normal
  01/15/2026 12 AM PST           10.41           2686         -              Normal
  01/15/2026 01 AM PST           10.41           2686         0              Normal
  01/15/2026 02 AM PST           10.41           2686         0              Normal
  01/15/2026 03 AM PST           10.40           2678         -              Normal
  01/15/2026 04 AM PST           10.39           2670         -              Normal
  01/15/2026 05 AM PST           10.39           2670         0              Normal
  01/15/2026 06 AM PST           10.38           2662         -              Normal
  01/15/2026 07 AM PST           10.38           2662         0              Normal
  01/15/2026 08 AM PST           10.37           2653         -              Normal
  01/15/2026 09 AM PST           10.37           2653         0              Normal
  01/15/2026 10 AM PST           10.36           2645         -              Normal
  01/15/2026 11 AM PST           10.36           2645         0              Normal
  01/15/2026 12 PM PST           10.36           2645         0              Normal
  01/15/2026 01 PM PST           10.35           2637         -              Normal
#
# FORECAST
#
# Date & Time  (Local)    Stage (Feet)     Flow (cfs)     Trend     Forecast Status
# ---------------------------------------------------------------------------------
  01/15/2026 02 PM PST           10.35           2637                        Normal
  01/15/2026 03 PM PST           10.35           2637         0              Normal
  01/15/2026 04 PM PST           10.34           2629         -              Normal
  01/15/2026 05 PM PST           10.34           2629         0              Normal
  01/15/2026 06 PM PST           10.34           2629         0              Normal
  01/15/2026 07 PM PST           10.34           2629         0              Normal
  01/15/2026 08 PM PST           10.33           2621         -              Normal
  01/15/2026 09 PM PST           10.33           2621         0              Normal
  01/15/2026 10 PM PST           10.33           2621         0              Normal
  01/15/2026 11 PM PST           10.33           2621         0              Normal
  01/16/2026 12 AM PST           10.33           2621         0              Normal
  01/16/2026 01 AM PST           10.32           2612         -              Normal
  01/16/2026 02 AM PST           10.32           2612         0              Normal
  01/16/2026 03 AM PST           10.32           2612         0              Normal
  01/16/2026 04 AM PST           10.32           2612         0              Normal
  01/16/2026 05 AM PST           10.31           2604         -              Normal
  01/16/2026 06 AM PST           10.31           2604         0              Normal
  01/16/2026 07 AM PST           10.31           2604         0              Normal
  01/16/2026 08 AM PST           10.31           2604         0              Normal
  01/16/2026 09 AM PST           10.30           2596         -              Normal
  01/16/2026 10 AM PST           10.30           2596         0              Normal
  01/16/2026 11 AM PST           10.30           2596         0              Normal
  01/16/2026 12 PM PST           10.30           2596         0              Normal
  01/16/2026 01 PM PST           10.29           2588         -              Normal
  01/16/2026 02 PM PST           10.29           2588         0              Normal
  01/16/2026 03 PM PST           10.29           2588         0              Normal
  01/16/2026 04 PM PST           10.29           2588         0              Normal
  01/16/2026 05 PM PST           10.28           2580         -              Normal
  01/16/2026 06 PM PST           10.28           2580         0              Normal
  01/16/2026 07 PM PST           10.28           2580         0              Normal
  01/16/2026 08 PM PST           10.27           2572         -              Normal
  01/16/2026 09 PM PST           10.27           2572         0              Normal
  01/16/2026 10 PM PST           10.27           2572         0              Normal
  01/16/2026 11 PM PST           10.26           2564         -              Normal
  01/17/2026 12 AM PST           10.26           2564         0              Normal
  01/17/2026 01 AM PST           10.26           2564         0              Normal
  01/17/2026 02 AM PST           10.25           2556         -              Normal
  01/17/2026 03 AM PST           10.25           2556         0              Normal
  01/17/2026 04 AM PST           10.25           2556         0              Normal
  01/17/2026 05 AM PST           10.24           2547         -              Normal
  01/17/2026 06 AM PST           10.24           2547         0              Normal
  01/17/2026 07 AM PST           10.24           2547         0              Normal
  01/17/2026 08 AM PST           10.23           2539         -              Normal
  01/17/2026 09 AM PST           10.23           2539         0              Normal
  01/17/2026 10 AM PST           10.22           2531         -              Normal
  01/17/2026 11 AM PST           10.22           2531         0              Normal
  01/17/2026 12 PM PST           10.22           2531         0              Normal
  01/17/2026 01 PM PST           10.21           2523         -              Normal
  01/17/2026 02 PM PST           10.21           2523         0              Normal
  01/17/2026 03 PM PST           10.21           2523         0              Normal
  01/17/2026 04 PM PST           10.20           2515         -              Normal
  01/17/2026 05 PM PST           10.20           2515         0              Normal
  01/17/2026 06 PM PST           10.19           2507         -              Normal
  01/17/2026 07 PM PST           10.19           2507         0              Normal
  01/17/2026 08 PM PST           10.19           2507         0              Normal
  01/17/2026 09 PM PST           10.18           2499         -              Normal
  01/17/2026 10 PM PST           10.18           2499         0              Normal
  01/17/2026 11 PM PST           10.18           2499         0              Normal
  01/18/2026 12 AM PST           10.17           2491         -              Normal
  01/18/2026 01 AM PST           10.17           2491         0              Normal
  01/18/2026 02 AM PST           10.16           2483         -              Normal
  01/18/2026 03 AM PST           10.16           2483         0              Normal
  01/18/2026 04 AM PST           10.15           2475         -              Normal
  01/18/2026 05 AM PST           10.15           2475         0              Normal
  01/18/2026 06 AM PST           10.15           2475         0              Normal
  01/18/2026 07 AM PST           10.14           2467         -              Normal
  01/18/2026 08 AM PST           10.14           2467         0              Normal
  01/18/2026 09 AM PST           10.14           2467         0              Normal
  01/18/2026 10 AM PST           10.13           2459         -              Normal
  01/18/2026 11 AM PST           10.13           2459         0              Normal
  01/18/2026 12 PM PST           10.12           2451         -              Normal
  01/18/2026 01 PM PST           10.12           2451         0              Normal
  01/18/2026 02 PM PST           10.12           2451         0              Normal
  01/18/2026 03 PM PST           10.11           2443         -              Normal
  01/18/2026 04 PM PST           10.11           2443         0              Normal
  01/18/2026 05 PM PST           10.11           2443         0              Normal
  01/18/2026 06 PM PST           10.10           2436         -              Normal
  01/18/2026 07 PM PST           10.10           2436         0              Normal
  01/18/2026 08 PM PST           10.10           2436         0              Normal
  01/18/2026 09 PM PST           10.09           2428         -              Normal
  01/18/2026 10 PM PST           10.09           2428         0              Normal
  01/18/2026 11 PM PST           10.09           2428         0              Normal
  01/19/2026 12 AM PST           10.08           2420         -              Normal
  01/19/2026 01 AM PST           10.08           2420         0              Normal
  01/19/2026 02 AM PST           10.08           2420         0              Normal
  01/19/2026 03 AM PST           10.07           2412         -              Normal
  01/19/2026 04 AM PST           10.07           2412         0              Normal
  01/19/2026 05 AM PST           10.07           2412         0              Normal
  01/19/2026 06 AM PST           10.06           2404         -              Normal
  01/19/2026 07 AM PST           10.06           2404         0              Normal
  01/19/2026 08 AM PST           10.06           2404         0              Normal
  01/19/2026 09 AM PST           10.05           2396         -              Normal
  01/19/2026 10 AM PST           10.05           2396         0              Normal
  01/19/2026 11 AM PST           10.05           2396         0              Normal
  01/19/2026 12 PM PST           10.04           2388         -              Normal
  01/19/2026 01 PM PST           10.04           2388         0              Normal
  01/19/2026 02 PM PST           10.04           2388         0              Normal
  01/19/2026 03 PM PST           10.03           2380         -              Normal
  01/19/2026 04 PM PST           10.03           2380         0              Normal
  01/19/2026 05 PM PST           10.03           2380         0              Normal
  01/19/2026 06 PM PST           10.02           2373         -              Normal
  01/19/2026 07 PM PST           10.02           2373         0              Normal
  01/19/2026 08 PM PST           10.02           2373         0              Normal
  01/19/2026 09 PM PST           10.01           2365         -              Normal
  01/19/2026 10 PM PST           10.01           2365         0              Normal
  01/19/2026 11 PM PST           10.01           2365         0              Normal
  01/20/2026 12 AM PST           10.01           2365         0              Normal
  01/20/2026 01 AM PST           10.00           2357         -              Normal
  01/20/2026 02 AM PST           10.00           2357         0              Normal
  01/20/2026 03 AM PST           10.00           2357         0              Normal
  01/20/2026 04 AM PST            9.99           2349         -              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.