TUOLUMNE RIVER - MODESTO (MDSC1)
Latitude: 37.63º NLongitude: 120.99º WElevation: 60 FeetForecast Type: Official Location
Location: Stanislaus County in CaliforniaBulletin Group: San JoaquinRiver Group: San Joaquin
Issuance Time: Mar 01 2026 at 8:32 AM PSTNext Issuance: Mar 02 2026 at 9:00 AM PST
Action/Monitor: 50.5 FeetMinor Flood: 55.0 FeetModerate Flood: 66.0 FeetMajor Flood: 67.0 Feet

# Tabular Observed and Forecast Hydrograph Information
#
# Location: Tuolumne River - Modesto (MDSC1)
#
# File Generation Time:  03/01/2026 at 08:32 AM PST
# Data Interval:  1 Hour
#
# Most Recent Date & Time of Maximum Observed:  02/24/2026 at 08:00 AM PST
# Maximum Observed Stage:                       44.82 Feet
# Maximum Observed Flow:                        3192 cfs
#
# Earliest Date & Time of Maximum Forecast:     03/01/2026 at 09:00 AM PST
# Maximum Forecast Stage:                       44.61 Feet
# Maximum Forecast Flow:                        3092 cfs
#
# OBSERVED
#
# Date & Time  (Local)    Stage (Feet)     Flow (cfs)     Trend     Observed Status
# ---------------------------------------------------------------------------------
  02/24/2026 08 AM PST           44.82           3192                        Normal
  02/24/2026 09 AM PST           44.81           3187         -              Normal
  02/24/2026 10 AM PST           44.81           3187         0              Normal
  02/24/2026 11 AM PST           44.81           3187         0              Normal
  02/24/2026 12 PM PST           44.78           3173         -              Normal
  02/24/2026 01 PM PST           44.77           3168         -              Normal
  02/24/2026 02 PM PST           44.78           3173         +              Normal
  02/24/2026 03 PM PST           44.77           3168         -              Normal
  02/24/2026 04 PM PST           44.76           3163         -              Normal
  02/24/2026 05 PM PST           44.75           3158         -              Normal
  02/24/2026 06 PM PST           44.74           3154         -              Normal
  02/24/2026 07 PM PST           44.73           3149         -              Normal
  02/24/2026 08 PM PST           44.74           3154         +              Normal
  02/24/2026 09 PM PST           44.74           3154         0              Normal
  02/24/2026 10 PM PST           44.72           3144         -              Normal
  02/24/2026 11 PM PST           44.73           3149         +              Normal
  02/25/2026 12 AM PST           44.72           3144         -              Normal
  02/25/2026 01 AM PST           44.72           3144         0              Normal
  02/25/2026 02 AM PST           44.72           3144         0              Normal
  02/25/2026 03 AM PST           44.70           3135         -              Normal
  02/25/2026 04 AM PST           44.70           3135         0              Normal
  02/25/2026 05 AM PST           44.71           3139         +              Normal
  02/25/2026 06 AM PST           44.72           3144         +              Normal
  02/25/2026 07 AM PST           44.70           3135         -              Normal
  02/25/2026 08 AM PST           44.69           3130         -              Normal
  02/25/2026 09 AM PST           44.71           3139         +              Normal
  02/25/2026 10 AM PST           44.71           3139         0              Normal
  02/25/2026 11 AM PST           44.70           3135         -              Normal
  02/25/2026 12 PM PST           44.70           3135         0              Normal
  02/25/2026 01 PM PST           44.69           3130         -              Normal
  02/25/2026 02 PM PST           44.69           3130         0              Normal
  02/25/2026 03 PM PST           44.70           3135         +              Normal
  02/25/2026 04 PM PST           44.69           3130         -              Normal
  02/25/2026 05 PM PST           44.70           3135         +              Normal
  02/25/2026 06 PM PST           44.68           3125         -              Normal
  02/25/2026 07 PM PST           44.67           3120         -              Normal
  02/25/2026 08 PM PST           44.68           3125         +              Normal
  02/25/2026 09 PM PST           44.67           3120         -              Normal
  02/25/2026 10 PM PST           44.68           3125         +              Normal
  02/25/2026 11 PM PST           44.66           3115         -              Normal
  02/26/2026 12 AM PST           44.68           3125         +              Normal
  02/26/2026 01 AM PST           44.68           3125         0              Normal
  02/26/2026 02 AM PST           44.68           3125         0              Normal
  02/26/2026 03 AM PST           44.68           3125         0              Normal
  02/26/2026 04 AM PST           44.67           3120         -              Normal
  02/26/2026 05 AM PST           44.67           3120         0              Normal
  02/26/2026 06 AM PST           44.67           3120         0              Normal
  02/26/2026 07 AM PST           44.67           3120         0              Normal
  02/26/2026 08 AM PST           44.67           3120         0              Normal
  02/26/2026 09 AM PST           44.65           3111         -              Normal
  02/26/2026 10 AM PST           44.67           3120         +              Normal
  02/26/2026 11 AM PST           44.65           3111         -              Normal
  02/26/2026 12 PM PST           44.68           3125         +              Normal
  02/26/2026 01 PM PST           44.68           3125         0              Normal
  02/26/2026 02 PM PST           44.68           3125         0              Normal
  02/26/2026 03 PM PST           44.67           3120         -              Normal
  02/26/2026 04 PM PST           44.67           3120         0              Normal
  02/26/2026 05 PM PST           44.67           3120         0              Normal
  02/26/2026 06 PM PST           44.67           3120         0              Normal
  02/26/2026 07 PM PST           44.65           3111         -              Normal
  02/26/2026 08 PM PST           44.67           3120         +              Normal
  02/26/2026 09 PM PST           44.65           3111         -              Normal
  02/26/2026 10 PM PST           44.66           3115         +              Normal
  02/26/2026 11 PM PST           44.65           3111         -              Normal
  02/27/2026 12 AM PST           44.66           3115         +              Normal
  02/27/2026 01 AM PST           44.65           3111         -              Normal
  02/27/2026 02 AM PST           44.65           3111         0              Normal
  02/27/2026 03 AM PST           44.65           3111         0              Normal
  02/27/2026 04 AM PST           44.65           3111         0              Normal
  02/27/2026 05 AM PST           44.64           3106         -              Normal
  02/27/2026 06 AM PST           44.63           3101         -              Normal
  02/27/2026 07 AM PST           44.62           3096         -              Normal
  02/27/2026 08 AM PST           44.64           3106         +              Normal
  02/27/2026 09 AM PST           44.65           3111         +              Normal
  02/27/2026 10 AM PST           44.63           3101         -              Normal
  02/27/2026 11 AM PST           44.63           3101         0              Normal
  02/27/2026 12 PM PST           44.62           3096         -              Normal
  02/27/2026 01 PM PST           44.64           3106         +              Normal
  02/27/2026 02 PM PST           44.63           3101         -              Normal
  02/27/2026 03 PM PST           44.64           3106         +              Normal
  02/27/2026 04 PM PST           44.64           3106         0              Normal
  02/27/2026 05 PM PST           44.63           3101         -              Normal
  02/27/2026 06 PM PST           44.63           3101         0              Normal
  02/27/2026 07 PM PST           44.63           3101         0              Normal
  02/27/2026 08 PM PST           44.63           3101         0              Normal
  02/27/2026 09 PM PST           44.64           3106         +              Normal
  02/27/2026 10 PM PST           44.64           3106         0              Normal
  02/27/2026 11 PM PST           44.62           3096         -              Normal
  02/28/2026 12 AM PST           44.63           3101         +              Normal
  02/28/2026 01 AM PST           44.63           3101         0              Normal
  02/28/2026 02 AM PST           44.61           3092         -              Normal
  02/28/2026 03 AM PST           44.62           3096         +              Normal
  02/28/2026 04 AM PST           44.63           3101         +              Normal
  02/28/2026 05 AM PST           44.63           3101         0              Normal
  02/28/2026 06 AM PST           44.63           3101         0              Normal
  02/28/2026 07 AM PST           44.63           3101         0              Normal
  02/28/2026 08 AM PST           44.62           3096         -              Normal
  02/28/2026 09 AM PST           44.62           3096         0              Normal
  02/28/2026 10 AM PST           44.62           3096         0              Normal
  02/28/2026 11 AM PST           44.62           3096         0              Normal
  02/28/2026 12 PM PST           44.62           3096         0              Normal
  02/28/2026 01 PM PST           44.62           3096         0              Normal
  02/28/2026 02 PM PST           44.63           3101         +              Normal
  02/28/2026 03 PM PST           44.62           3096         -              Normal
  02/28/2026 04 PM PST           44.61           3092         -              Normal
  02/28/2026 05 PM PST           44.61           3092         0              Normal
  02/28/2026 06 PM PST           44.61           3092         0              Normal
  02/28/2026 07 PM PST           44.60           3087         -              Normal
  02/28/2026 08 PM PST           44.61           3092         +              Normal
  02/28/2026 09 PM PST           44.62           3096         +              Normal
  02/28/2026 10 PM PST           44.61           3092         -              Normal
  02/28/2026 11 PM PST           44.61           3092         0              Normal
  03/01/2026 12 AM PST           44.61           3092         0              Normal
  03/01/2026 01 AM PST           44.60           3087         -              Normal
  03/01/2026 02 AM PST           44.60           3087         0              Normal
  03/01/2026 03 AM PST           44.60           3087         0              Normal
  03/01/2026 04 AM PST           44.61           3092         +              Normal
  03/01/2026 05 AM PST           44.61           3092         0              Normal
  03/01/2026 06 AM PST           44.61           3092         0              Normal
  03/01/2026 07 AM PST           44.61           3092         0              Normal
  03/01/2026 08 AM PST           44.61           3092         0              Normal
#
# FORECAST
#
# Date & Time  (Local)    Stage (Feet)     Flow (cfs)     Trend     Forecast Status
# ---------------------------------------------------------------------------------
  03/01/2026 09 AM PST           44.61           3092                        Normal
  03/01/2026 10 AM PST           44.61           3092         0              Normal
  03/01/2026 11 AM PST           44.60           3087         -              Normal
  03/01/2026 12 PM PST           44.60           3087         0              Normal
  03/01/2026 01 PM PST           44.60           3087         0              Normal
  03/01/2026 02 PM PST           44.60           3087         0              Normal
  03/01/2026 03 PM PST           44.60           3087         0              Normal
  03/01/2026 04 PM PST           44.59           3082         -              Normal
  03/01/2026 05 PM PST           44.59           3082         0              Normal
  03/01/2026 06 PM PST           44.59           3082         0              Normal
  03/01/2026 07 PM PST           44.60           3087         +              Normal
  03/01/2026 08 PM PST           44.60           3087         0              Normal
  03/01/2026 09 PM PST           44.60           3087         0              Normal
  03/01/2026 10 PM PST           44.60           3087         0              Normal
  03/01/2026 11 PM PST           44.60           3087         0              Normal
  03/02/2026 12 AM PST           44.60           3087         0              Normal
  03/02/2026 01 AM PST           44.60           3087         0              Normal
  03/02/2026 02 AM PST           44.60           3087         0              Normal
  03/02/2026 03 AM PST           44.60           3087         0              Normal
  03/02/2026 04 AM PST           44.60           3087         0              Normal
  03/02/2026 05 AM PST           44.60           3087         0              Normal
  03/02/2026 06 AM PST           44.60           3087         0              Normal
  03/02/2026 07 AM PST           44.60           3087         0              Normal
  03/02/2026 08 AM PST           44.60           3087         0              Normal
  03/02/2026 09 AM PST           44.60           3087         0              Normal
  03/02/2026 10 AM PST           44.60           3087         0              Normal
  03/02/2026 11 AM PST           44.59           3082         -              Normal
  03/02/2026 12 PM PST           44.59           3082         0              Normal
  03/02/2026 01 PM PST           44.59           3082         0              Normal
  03/02/2026 02 PM PST           44.59           3082         0              Normal
  03/02/2026 03 PM PST           44.59           3082         0              Normal
  03/02/2026 04 PM PST           44.59           3082         0              Normal
  03/02/2026 05 PM PST           44.59           3082         0              Normal
  03/02/2026 06 PM PST           44.59           3082         0              Normal
  03/02/2026 07 PM PST           44.59           3082         0              Normal
  03/02/2026 08 PM PST           44.59           3082         0              Normal
  03/02/2026 09 PM PST           44.59           3082         0              Normal
  03/02/2026 10 PM PST           44.59           3082         0              Normal
  03/02/2026 11 PM PST           44.59           3082         0              Normal
  03/03/2026 12 AM PST           44.59           3082         0              Normal
  03/03/2026 01 AM PST           44.59           3082         0              Normal
  03/03/2026 02 AM PST           44.59           3082         0              Normal
  03/03/2026 03 AM PST           44.58           3078         -              Normal
  03/03/2026 04 AM PST           44.58           3078         0              Normal
  03/03/2026 05 AM PST           44.58           3078         0              Normal
  03/03/2026 06 AM PST           44.58           3078         0              Normal
  03/03/2026 07 AM PST           44.58           3078         0              Normal
  03/03/2026 08 AM PST           44.58           3078         0              Normal
  03/03/2026 09 AM PST           44.58           3078         0              Normal
  03/03/2026 10 AM PST           44.58           3078         0              Normal
  03/03/2026 11 AM PST           44.58           3078         0              Normal
  03/03/2026 12 PM PST           44.58           3078         0              Normal
  03/03/2026 01 PM PST           44.58           3078         0              Normal
  03/03/2026 02 PM PST           44.58           3078         0              Normal
  03/03/2026 03 PM PST           44.58           3078         0              Normal
  03/03/2026 04 PM PST           44.58           3078         0              Normal
  03/03/2026 05 PM PST           44.58           3078         0              Normal
  03/03/2026 06 PM PST           44.57           3073         -              Normal
  03/03/2026 07 PM PST           44.57           3073         0              Normal
  03/03/2026 08 PM PST           44.57           3073         0              Normal
  03/03/2026 09 PM PST           44.57           3073         0              Normal
  03/03/2026 10 PM PST           44.57           3073         0              Normal
  03/03/2026 11 PM PST           44.57           3073         0              Normal
  03/04/2026 12 AM PST           44.57           3073         0              Normal
  03/04/2026 01 AM PST           44.57           3073         0              Normal
  03/04/2026 02 AM PST           44.57           3073         0              Normal
  03/04/2026 03 AM PST           44.57           3073         0              Normal
  03/04/2026 04 AM PST           44.57           3073         0              Normal
  03/04/2026 05 AM PST           44.57           3073         0              Normal
  03/04/2026 06 AM PST           44.57           3073         0              Normal
  03/04/2026 07 AM PST           44.57           3073         0              Normal
  03/04/2026 08 AM PST           44.56           3068         -              Normal
  03/04/2026 09 AM PST           44.56           3068         0              Normal
  03/04/2026 10 AM PST           44.56           3068         0              Normal
  03/04/2026 11 AM PST           44.56           3068         0              Normal
  03/04/2026 12 PM PST           44.56           3068         0              Normal
  03/04/2026 01 PM PST           44.56           3068         0              Normal
  03/04/2026 02 PM PST           44.56           3068         0              Normal
  03/04/2026 03 PM PST           44.56           3068         0              Normal
  03/04/2026 04 PM PST           44.56           3068         0              Normal
  03/04/2026 05 PM PST           44.56           3068         0              Normal
  03/04/2026 06 PM PST           44.56           3068         0              Normal
  03/04/2026 07 PM PST           44.56           3068         0              Normal
  03/04/2026 08 PM PST           44.56           3068         0              Normal
  03/04/2026 09 PM PST           44.56           3068         0              Normal
  03/04/2026 10 PM PST           44.56           3068         0              Normal
  03/04/2026 11 PM PST           44.56           3068         0              Normal
  03/05/2026 12 AM PST           44.55           3063         -              Normal
  03/05/2026 01 AM PST           44.55           3063         0              Normal
  03/05/2026 02 AM PST           44.55           3063         0              Normal
  03/05/2026 03 AM PST           44.55           3063         0              Normal
  03/05/2026 04 AM PST           44.55           3063         0              Normal
  03/05/2026 05 AM PST           44.55           3063         0              Normal
  03/05/2026 06 AM PST           44.55           3063         0              Normal
  03/05/2026 07 AM PST           44.55           3063         0              Normal
  03/05/2026 08 AM PST           44.55           3063         0              Normal
  03/05/2026 09 AM PST           44.55           3063         0              Normal
  03/05/2026 10 AM PST           44.55           3063         0              Normal
  03/05/2026 11 AM PST           44.55           3063         0              Normal
  03/05/2026 12 PM PST           44.55           3063         0              Normal
  03/05/2026 01 PM PST           44.55           3063         0              Normal
  03/05/2026 02 PM PST           44.55           3063         0              Normal
  03/05/2026 03 PM PST           44.55           3063         0              Normal
  03/05/2026 04 PM PST           44.55           3063         0              Normal
  03/05/2026 05 PM PST           44.55           3063         0              Normal
  03/05/2026 06 PM PST           44.54           3059         -              Normal
  03/05/2026 07 PM PST           44.54           3059         0              Normal
  03/05/2026 08 PM PST           44.54           3059         0              Normal
  03/05/2026 09 PM PST           44.54           3059         0              Normal
  03/05/2026 10 PM PST           44.54           3059         0              Normal
  03/05/2026 11 PM PST           44.54           3059         0              Normal
  03/06/2026 12 AM PST           44.54           3059         0              Normal
  03/06/2026 01 AM PST           44.54           3059         0              Normal
  03/06/2026 02 AM PST           44.54           3059         0              Normal
  03/06/2026 03 AM PST           44.54           3059         0              Normal
  03/06/2026 04 AM PST           44.54           3059         0              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.