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TUOLUMNE RIVER - MODESTO (MDSC1)
| Latitude: 37.63º N | Longitude: 120.99º W | Elevation: 60 Feet | | Forecast Type: Official Location |
| Location: Stanislaus County in California | Bulletin Group: San Joaquin | River Group: San Joaquin |
| Issuance Time: | Mar 24 2026 at 12:59 PM PDT | Next Issuance: | Mar 25 2026 at 9:00 AM PDT
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| Action/Monitor: 50.5 Feet | Minor Flood: 55.0 Feet | Moderate Flood: 66.0 Feet | Major Flood: 67.0 Feet |
# Tabular Observed and Forecast Hydrograph Information
#
# Location: Tuolumne River - Modesto (MDSC1)
#
# File Generation Time: 03/24/2026 at 12:59 PM PDT
# Data Interval: 1 Hour
#
# Most Recent Date & Time of Maximum Observed: 03/19/2026 at 12:00 PM PDT
# Maximum Observed Stage: 42.98 Feet
# Maximum Observed Flow: 2362 cfs
#
# Earliest Date & Time of Maximum Forecast: 03/24/2026 at 01:00 PM PDT
# Maximum Forecast Stage: 39.07 Feet
# Maximum Forecast Flow: 878 cfs
#
# OBSERVED
#
# Date & Time (Local) Stage (Feet) Flow (cfs) Trend Observed Status
# ---------------------------------------------------------------------------------
03/19/2026 12 PM PDT 42.98 2362 Normal
03/19/2026 01 PM PDT 42.95 2349 - Normal
03/19/2026 02 PM PDT 42.93 2341 - Normal
03/19/2026 03 PM PDT 42.91 2332 - Normal
03/19/2026 04 PM PDT 42.88 2319 - Normal
03/19/2026 05 PM PDT 42.86 2311 - Normal
03/19/2026 06 PM PDT 42.84 2302 - Normal
03/19/2026 07 PM PDT 42.83 2298 - Normal
03/19/2026 08 PM PDT 42.81 2290 - Normal
03/19/2026 09 PM PDT 42.80 2285 - Normal
03/19/2026 10 PM PDT 42.77 2273 - Normal
03/19/2026 11 PM PDT 42.75 2264 - Normal
03/20/2026 12 AM PDT 42.71 2247 - Normal
03/20/2026 01 AM PDT 42.66 2226 - Normal
03/20/2026 02 AM PDT 42.61 2205 - Normal
03/20/2026 03 AM PDT 42.56 2184 - Normal
03/20/2026 04 AM PDT 42.50 2159 - Normal
03/20/2026 05 AM PDT 42.45 2138 - Normal
03/20/2026 06 AM PDT 42.38 2109 - Normal
03/20/2026 07 AM PDT 42.32 2084 - Normal
03/20/2026 08 AM PDT 42.27 2063 - Normal
03/20/2026 09 AM PDT 42.23 2047 - Normal
03/20/2026 10 AM PDT 42.18 2026 - Normal
03/20/2026 11 AM PDT 42.14 2010 - Normal
03/20/2026 12 PM PDT 42.11 1998 - Normal
03/20/2026 01 PM PDT 42.07 1981 - Normal
03/20/2026 02 PM PDT 42.04 1969 - Normal
03/20/2026 03 PM PDT 42.04 1969 0 Normal
03/20/2026 04 PM PDT 41.99 1949 - Normal
03/20/2026 05 PM PDT 41.97 1941 - Normal
03/20/2026 06 PM PDT 41.95 1933 - Normal
03/20/2026 07 PM PDT 41.94 1929 - Normal
03/20/2026 08 PM PDT 41.90 1912 - Normal
03/20/2026 09 PM PDT 41.89 1908 - Normal
03/20/2026 10 PM PDT 41.88 1904 - Normal
03/20/2026 11 PM PDT 41.84 1888 - Normal
03/21/2026 12 AM PDT 41.81 1876 - Normal
03/21/2026 01 AM PDT 41.75 1852 - Normal
03/21/2026 02 AM PDT 41.70 1832 - Normal
03/21/2026 03 AM PDT 41.64 1808 - Normal
03/21/2026 04 AM PDT 41.59 1788 - Normal
03/21/2026 05 AM PDT 41.54 1769 - Normal
03/21/2026 06 AM PDT 41.48 1745 - Normal
03/21/2026 07 AM PDT 41.40 1714 - Normal
03/21/2026 08 AM PDT 41.35 1694 - Normal
03/21/2026 09 AM PDT 41.31 1679 - Normal
03/21/2026 10 AM PDT 41.26 1659 - Normal
03/21/2026 11 AM PDT 41.23 1648 - Normal
03/21/2026 12 PM PDT 41.19 1632 - Normal
03/21/2026 01 PM PDT 41.16 1620 - Normal
03/21/2026 02 PM PDT 41.13 1609 - Normal
03/21/2026 03 PM PDT 41.12 1605 - Normal
03/21/2026 04 PM PDT 41.09 1594 - Normal
03/21/2026 05 PM PDT 41.08 1590 - Normal
03/21/2026 06 PM PDT 41.07 1586 - Normal
03/21/2026 07 PM PDT 41.06 1582 - Normal
03/21/2026 08 PM PDT 41.04 1574 - Normal
03/21/2026 09 PM PDT 41.03 1571 - Normal
03/21/2026 10 PM PDT 40.99 1555 - Normal
03/21/2026 11 PM PDT 40.98 1552 - Normal
03/22/2026 12 AM PDT 40.95 1540 - Normal
03/22/2026 01 AM PDT 40.92 1529 - Normal
03/22/2026 02 AM PDT 40.86 1506 - Normal
03/22/2026 03 AM PDT 40.83 1495 - Normal
03/22/2026 04 AM PDT 40.79 1480 - Normal
03/22/2026 05 AM PDT 40.75 1465 - Normal
03/22/2026 06 AM PDT 40.69 1443 - Normal
03/22/2026 07 AM PDT 40.65 1428 - Normal
03/22/2026 08 AM PDT 40.61 1413 - Normal
03/22/2026 09 AM PDT 40.56 1394 - Normal
03/22/2026 10 AM PDT 40.52 1380 - Normal
03/22/2026 11 AM PDT 40.48 1365 - Normal
03/22/2026 12 PM PDT 40.43 1347 - Normal
03/22/2026 01 PM PDT 40.40 1336 - Normal
03/22/2026 02 PM PDT 40.38 1328 - Normal
03/22/2026 03 PM PDT 40.34 1314 - Normal
03/22/2026 04 PM PDT 40.32 1307 - Normal
03/22/2026 05 PM PDT 40.30 1299 - Normal
03/22/2026 06 PM PDT 40.28 1292 - Normal
03/22/2026 07 PM PDT 40.27 1289 - Normal
03/22/2026 08 PM PDT 40.24 1278 - Normal
03/22/2026 09 PM PDT 40.25 1281 + Normal
03/22/2026 10 PM PDT 40.24 1278 - Normal
03/22/2026 11 PM PDT 40.22 1271 - Normal
03/23/2026 12 AM PDT 40.20 1263 - Normal
03/23/2026 01 AM PDT 40.17 1253 - Normal
03/23/2026 02 AM PDT 40.14 1242 - Normal
03/23/2026 03 AM PDT 40.09 1224 - Normal
03/23/2026 04 AM PDT 40.03 1203 - Normal
03/23/2026 05 AM PDT 39.98 1185 - Normal
03/23/2026 06 AM PDT 39.94 1171 - Normal
03/23/2026 07 AM PDT 39.90 1157 - Normal
03/23/2026 08 AM PDT 39.84 1136 - Normal
03/23/2026 09 AM PDT 39.82 1129 - Normal
03/23/2026 10 AM PDT 39.77 1112 - Normal
03/23/2026 11 AM PDT 39.75 1105 - Normal
03/23/2026 12 PM PDT 39.71 1091 - Normal
03/23/2026 01 PM PDT 39.68 1081 - Normal
03/23/2026 02 PM PDT 39.66 1074 - Normal
03/23/2026 03 PM PDT 39.64 1067 - Normal
03/23/2026 04 PM PDT 39.62 1061 - Normal
03/23/2026 05 PM PDT 39.60 1054 - Normal
03/23/2026 06 PM PDT 39.58 1047 - Normal
03/23/2026 07 PM PDT 39.56 1040 - Normal
03/23/2026 08 PM PDT 39.54 1034 - Normal
03/23/2026 09 PM PDT 39.53 1030 - Normal
03/23/2026 10 PM PDT 39.53 1030 0 Normal
03/23/2026 11 PM PDT 39.53 1030 0 Normal
03/24/2026 12 AM PDT 39.51 1023 - Normal
03/24/2026 01 AM PDT 39.49 1017 - Normal
03/24/2026 02 AM PDT 39.47 1010 - Normal
03/24/2026 03 AM PDT 39.44 1000 - Normal
03/24/2026 04 AM PDT 39.40 986 - Normal
03/24/2026 05 AM PDT 39.36 973 - Normal
03/24/2026 06 AM PDT 39.31 957 - Normal
03/24/2026 07 AM PDT 39.27 943 - Normal
03/24/2026 08 AM PDT 39.22 927 - Normal
03/24/2026 09 AM PDT 39.19 917 - Normal
03/24/2026 10 AM PDT 39.15 904 - Normal
03/24/2026 11 AM PDT 39.12 894 - Normal
03/24/2026 12 PM PDT 39.09 885 - Normal
#
# FORECAST
#
# Date & Time (Local) Stage (Feet) Flow (cfs) Trend Forecast Status
# ---------------------------------------------------------------------------------
03/24/2026 01 PM PDT 39.07 878 Normal
03/24/2026 02 PM PDT 39.05 872 - Normal
03/24/2026 03 PM PDT 39.03 865 - Normal
03/24/2026 04 PM PDT 39.01 859 - Normal
03/24/2026 05 PM PDT 39.00 856 - Normal
03/24/2026 06 PM PDT 38.98 849 - Normal
03/24/2026 07 PM PDT 38.97 846 - Normal
03/24/2026 08 PM PDT 38.96 842 - Normal
03/24/2026 09 PM PDT 38.95 839 - Normal
03/24/2026 10 PM PDT 38.94 836 - Normal
03/24/2026 11 PM PDT 38.93 832 - Normal
03/25/2026 12 AM PDT 38.92 829 - Normal
03/25/2026 01 AM PDT 38.92 829 0 Normal
03/25/2026 02 AM PDT 38.91 826 - Normal
03/25/2026 03 AM PDT 38.91 826 0 Normal
03/25/2026 04 AM PDT 38.90 822 - Normal
03/25/2026 05 AM PDT 38.90 822 0 Normal
03/25/2026 06 AM PDT 38.90 822 0 Normal
03/25/2026 07 AM PDT 38.90 822 0 Normal
03/25/2026 08 AM PDT 38.90 822 0 Normal
03/25/2026 09 AM PDT 38.90 822 0 Normal
03/25/2026 10 AM PDT 38.89 819 - Normal
03/25/2026 11 AM PDT 38.89 819 0 Normal
03/25/2026 12 PM PDT 38.89 819 0 Normal
03/25/2026 01 PM PDT 38.89 819 0 Normal
03/25/2026 02 PM PDT 38.89 819 0 Normal
03/25/2026 03 PM PDT 38.89 819 0 Normal
03/25/2026 04 PM PDT 38.89 819 0 Normal
03/25/2026 05 PM PDT 38.89 819 0 Normal
03/25/2026 06 PM PDT 38.88 816 - Normal
03/25/2026 07 PM PDT 38.88 816 0 Normal
03/25/2026 08 PM PDT 38.88 816 0 Normal
03/25/2026 09 PM PDT 38.88 816 0 Normal
03/25/2026 10 PM PDT 38.88 816 0 Normal
03/25/2026 11 PM PDT 38.88 816 0 Normal
03/26/2026 12 AM PDT 38.88 816 0 Normal
03/26/2026 01 AM PDT 38.88 816 0 Normal
03/26/2026 02 AM PDT 38.88 816 0 Normal
03/26/2026 03 AM PDT 38.88 816 0 Normal
03/26/2026 04 AM PDT 38.88 816 0 Normal
03/26/2026 05 AM PDT 38.88 816 0 Normal
03/26/2026 06 AM PDT 38.88 816 0 Normal
03/26/2026 07 AM PDT 38.88 816 0 Normal
03/26/2026 08 AM PDT 38.88 816 0 Normal
03/26/2026 09 AM PDT 38.88 816 0 Normal
03/26/2026 10 AM PDT 38.88 816 0 Normal
03/26/2026 11 AM PDT 38.88 816 0 Normal
03/26/2026 12 PM PDT 38.88 816 0 Normal
03/26/2026 01 PM PDT 38.88 816 0 Normal
03/26/2026 02 PM PDT 38.88 816 0 Normal
03/26/2026 03 PM PDT 38.88 816 0 Normal
03/26/2026 04 PM PDT 38.88 816 0 Normal
03/26/2026 05 PM PDT 38.88 816 0 Normal
03/26/2026 06 PM PDT 38.88 816 0 Normal
03/26/2026 07 PM PDT 38.88 816 0 Normal
03/26/2026 08 PM PDT 38.88 816 0 Normal
03/26/2026 09 PM PDT 38.88 816 0 Normal
03/26/2026 10 PM PDT 38.88 816 0 Normal
03/26/2026 11 PM PDT 38.88 816 0 Normal
03/27/2026 12 AM PDT 38.88 816 0 Normal
03/27/2026 01 AM PDT 38.88 816 0 Normal
03/27/2026 02 AM PDT 38.88 816 0 Normal
03/27/2026 03 AM PDT 38.88 816 0 Normal
03/27/2026 04 AM PDT 38.88 816 0 Normal
03/27/2026 05 AM PDT 38.88 816 0 Normal
03/27/2026 06 AM PDT 38.88 816 0 Normal
03/27/2026 07 AM PDT 38.88 816 0 Normal
03/27/2026 08 AM PDT 38.88 816 0 Normal
03/27/2026 09 AM PDT 38.88 816 0 Normal
03/27/2026 10 AM PDT 38.88 816 0 Normal
03/27/2026 11 AM PDT 38.88 816 0 Normal
03/27/2026 12 PM PDT 38.88 816 0 Normal
03/27/2026 01 PM PDT 38.88 816 0 Normal
03/27/2026 02 PM PDT 38.88 816 0 Normal
03/27/2026 03 PM PDT 38.88 816 0 Normal
03/27/2026 04 PM PDT 38.88 816 0 Normal
03/27/2026 05 PM PDT 38.88 816 0 Normal
03/27/2026 06 PM PDT 38.88 816 0 Normal
03/27/2026 07 PM PDT 38.88 816 0 Normal
03/27/2026 08 PM PDT 38.88 816 0 Normal
03/27/2026 09 PM PDT 38.88 816 0 Normal
03/27/2026 10 PM PDT 38.88 816 0 Normal
03/27/2026 11 PM PDT 38.88 816 0 Normal
03/28/2026 12 AM PDT 38.88 816 0 Normal
03/28/2026 01 AM PDT 38.88 816 0 Normal
03/28/2026 02 AM PDT 38.88 816 0 Normal
03/28/2026 03 AM PDT 38.88 816 0 Normal
03/28/2026 04 AM PDT 38.88 816 0 Normal
03/28/2026 05 AM PDT 38.88 816 0 Normal
03/28/2026 06 AM PDT 38.88 816 0 Normal
03/28/2026 07 AM PDT 38.88 816 0 Normal
03/28/2026 08 AM PDT 38.88 816 0 Normal
03/28/2026 09 AM PDT 38.88 816 0 Normal
03/28/2026 10 AM PDT 38.88 816 0 Normal
03/28/2026 11 AM PDT 38.88 816 0 Normal
03/28/2026 12 PM PDT 38.88 816 0 Normal
03/28/2026 01 PM PDT 38.88 816 0 Normal
03/28/2026 02 PM PDT 38.88 816 0 Normal
03/28/2026 03 PM PDT 38.88 816 0 Normal
03/28/2026 04 PM PDT 38.88 816 0 Normal
03/28/2026 05 PM PDT 38.88 816 0 Normal
03/28/2026 06 PM PDT 38.88 816 0 Normal
03/28/2026 07 PM PDT 38.88 816 0 Normal
03/28/2026 08 PM PDT 38.88 816 0 Normal
03/28/2026 09 PM PDT 38.88 816 0 Normal
03/28/2026 10 PM PDT 38.88 816 0 Normal
03/28/2026 11 PM PDT 38.88 816 0 Normal
03/29/2026 12 AM PDT 38.88 816 0 Normal
03/29/2026 01 AM PDT 38.88 816 0 Normal
03/29/2026 02 AM PDT 38.88 816 0 Normal
03/29/2026 03 AM PDT 38.88 816 0 Normal
03/29/2026 04 AM PDT 38.88 816 0 Normal
03/29/2026 05 AM PDT 38.88 816 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.
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