National Weather Service California Nevada River Forecast Center Department of Commerce National Oceanic and Atmospheric Administration National Weather Service

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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 20 2026 at 9:19 AM PSTNext Issuance: Feb 20 2026 at 3:00 PM 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:  02/20/2026 at 09:19 AM PST
# Data Interval:  1 Hour
#
# Most Recent Date & Time of Maximum Observed:  02/20/2026 at 09:00 AM PST
# Maximum Observed Stage:                       36.60 Feet
# Maximum Observed Flow:                        2920 cfs
#
# Earliest Date & Time of Maximum Forecast:     02/23/2026 at 02:00 PM PST
# Maximum Forecast Stage:                       39.53 Feet
# Maximum Forecast Flow:                        4636 cfs
#
# OBSERVED
#
# Date & Time  (Local)    Stage (Feet)     Flow (cfs)     Trend     Observed Status
# ---------------------------------------------------------------------------------
  02/15/2026 09 AM PST           33.07           1219                        Normal
  02/15/2026 10 AM PST           33.07           1219         0              Normal
  02/15/2026 11 AM PST           33.07           1219         0              Normal
  02/15/2026 12 PM PST           33.07           1219         0              Normal
  02/15/2026 01 PM PST           33.07           1219         0              Normal
  02/15/2026 02 PM PST           33.08           1223         +              Normal
  02/15/2026 03 PM PST           33.09           1227         +              Normal
  02/15/2026 04 PM PST           33.08           1223         -              Normal
  02/15/2026 05 PM PST           33.08           1223         0              Normal
  02/15/2026 06 PM PST           33.08           1223         0              Normal
  02/15/2026 07 PM PST           33.07           1219         -              Normal
  02/15/2026 08 PM PST           33.07           1219         0              Normal
  02/15/2026 09 PM PST           33.07           1219         0              Normal
  02/15/2026 10 PM PST           33.07           1219         0              Normal
  02/15/2026 11 PM PST           33.07           1219         0              Normal
  02/16/2026 12 AM PST           33.06           1215         -              Normal
  02/16/2026 01 AM PST           33.07           1219         +              Normal
  02/16/2026 02 AM PST           33.07           1219         0              Normal
  02/16/2026 03 AM PST           33.08           1223         +              Normal
  02/16/2026 04 AM PST           33.10           1231         +              Normal
  02/16/2026 05 AM PST           33.12           1239         +              Normal
  02/16/2026 06 AM PST           33.14           1247         +              Normal
  02/16/2026 07 AM PST           33.18           1264         +              Normal
  02/16/2026 08 AM PST           33.19           1268         +              Normal
  02/16/2026 09 AM PST           33.21           1276         +              Normal
  02/16/2026 10 AM PST           33.22           1281         +              Normal
  02/16/2026 11 AM PST           33.25           1293         +              Normal
  02/16/2026 12 PM PST           33.29           1310         +              Normal
  02/16/2026 01 PM PST           33.32           1323         +              Normal
  02/16/2026 02 PM PST           33.34           1331         +              Normal
  02/16/2026 03 PM PST           33.34           1331         0              Normal
  02/16/2026 04 PM PST           33.34           1331         0              Normal
  02/16/2026 05 PM PST           33.34           1331         0              Normal
  02/16/2026 06 PM PST           33.33           1327         -              Normal
  02/16/2026 07 PM PST           33.33           1327         0              Normal
  02/16/2026 08 PM PST           33.33           1327         0              Normal
  02/16/2026 09 PM PST           33.33           1327         0              Normal
  02/16/2026 10 PM PST           33.34           1331         +              Normal
  02/16/2026 11 PM PST           33.34           1331         0              Normal
  02/17/2026 12 AM PST           33.37           1344         +              Normal
  02/17/2026 01 AM PST           33.36           1340         -              Normal
  02/17/2026 02 AM PST           33.37           1344         +              Normal
  02/17/2026 03 AM PST           33.37           1344         0              Normal
  02/17/2026 04 AM PST           33.38           1348         +              Normal
  02/17/2026 05 AM PST           33.37           1344         -              Normal
  02/17/2026 06 AM PST           33.38           1348         +              Normal
  02/17/2026 07 AM PST           33.37           1344         -              Normal
  02/17/2026 08 AM PST           33.38           1348         +              Normal
  02/17/2026 09 AM PST           33.37           1344         -              Normal
  02/17/2026 10 AM PST           33.37           1344         0              Normal
  02/17/2026 11 AM PST           33.36           1340         -              Normal
  02/17/2026 12 PM PST           33.39           1352         +              Normal
  02/17/2026 01 PM PST           33.39           1352         0              Normal
  02/17/2026 02 PM PST           33.42           1365         +              Normal
  02/17/2026 03 PM PST           33.44           1374         +              Normal
  02/17/2026 04 PM PST           33.46           1382         +              Normal
  02/17/2026 05 PM PST           33.47           1387         +              Normal
  02/17/2026 06 PM PST           33.48           1391         +              Normal
  02/17/2026 07 PM PST           33.50           1400         +              Normal
  02/17/2026 08 PM PST           33.51           1404         +              Normal
  02/17/2026 09 PM PST           33.52           1408         +              Normal
  02/17/2026 10 PM PST           33.53           1413         +              Normal
  02/17/2026 11 PM PST           33.54           1417         +              Normal
  02/18/2026 12 AM PST           33.56           1426         +              Normal
  02/18/2026 01 AM PST           33.56           1426         0              Normal
  02/18/2026 02 AM PST           33.58           1434         +              Normal
  02/18/2026 03 AM PST           33.60           1443         +              Normal
  02/18/2026 04 AM PST           33.62           1452         +              Normal
  02/18/2026 05 AM PST           33.63           1456         +              Normal
  02/18/2026 06 AM PST           33.65           1465         +              Normal
  02/18/2026 07 AM PST           33.67           1474         +              Normal
  02/18/2026 08 AM PST           33.70           1487         +              Normal
  02/18/2026 09 AM PST           33.73           1501         +              Normal
  02/18/2026 10 AM PST           33.75           1509         +              Normal
  02/18/2026 11 AM PST           33.79           1527         +              Normal
  02/18/2026 12 PM PST           33.83           1545         +              Normal
  02/18/2026 01 PM PST           33.86           1559         +              Normal
  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           36.43           2827         +              Normal
  02/20/2026 08 AM PST           36.51           2871         +              Normal
  02/20/2026 09 AM PST           36.60           2920         +              Normal
#
# FORECAST
#
# Date & Time  (Local)    Stage (Feet)     Flow (cfs)     Trend     Forecast Status
# ---------------------------------------------------------------------------------
  02/20/2026 10 AM PST           36.67           2958                        Normal
  02/20/2026 11 AM PST           36.74           2997         +              Normal
  02/20/2026 12 PM PST           36.80           3030         +              Normal
  02/20/2026 01 PM PST           36.85           3058         +              Normal
  02/20/2026 02 PM PST           36.90           3086         +              Normal
  02/20/2026 03 PM PST           36.95           3113         +              Normal
  02/20/2026 04 PM PST           36.98           3130         +              Normal
  02/20/2026 05 PM PST           37.02           3152         +              Normal
  02/20/2026 06 PM PST           37.06           3174         +              Normal
  02/20/2026 07 PM PST           37.09           3190         +              Normal
  02/20/2026 08 PM PST           37.12           3207         +              Normal
  02/20/2026 09 PM PST           37.16           3229         +              Normal
  02/20/2026 10 PM PST           37.20           3251         +              Normal
  02/20/2026 11 PM PST           37.24           3273         +              Normal
  02/21/2026 12 AM PST           37.28           3296         +              Normal
  02/21/2026 01 AM PST           37.33           3324         +              Normal
  02/21/2026 02 AM PST           37.38           3352         +              Normal
  02/21/2026 03 AM PST           37.43           3380         +              Normal
  02/21/2026 04 AM PST           37.48           3408         +              Normal
  02/21/2026 05 AM PST           37.54           3442         +              Normal
  02/21/2026 06 AM PST           37.59           3470         +              Normal
  02/21/2026 07 AM PST           37.65           3505         +              Normal
  02/21/2026 08 AM PST           37.70           3533         +              Normal
  02/21/2026 09 AM PST           37.76           3568         +              Normal
  02/21/2026 10 AM PST           37.81           3596         +              Normal
  02/21/2026 11 AM PST           37.86           3625         +              Normal
  02/21/2026 12 PM PST           37.90           3648         +              Normal
  02/21/2026 01 PM PST           37.94           3672         +              Normal
  02/21/2026 02 PM PST           37.98           3695         +              Normal
  02/21/2026 03 PM PST           38.02           3718         +              Normal
  02/21/2026 04 PM PST           38.05           3736         +              Normal
  02/21/2026 05 PM PST           38.09           3759         +              Normal
  02/21/2026 06 PM PST           38.12           3777         +              Normal
  02/21/2026 07 PM PST           38.16           3800         +              Normal
  02/21/2026 08 PM PST           38.19           3818         +              Normal
  02/21/2026 09 PM PST           38.23           3841         +              Normal
  02/21/2026 10 PM PST           38.26           3859         +              Normal
  02/21/2026 11 PM PST           38.30           3883         +              Normal
  02/22/2026 12 AM PST           38.33           3901         +              Normal
  02/22/2026 01 AM PST           38.37           3924         +              Normal
  02/22/2026 02 AM PST           38.41           3948         +              Normal
  02/22/2026 03 AM PST           38.45           3972         +              Normal
  02/22/2026 04 AM PST           38.48           3990         +              Normal
  02/22/2026 05 AM PST           38.52           4014         +              Normal
  02/22/2026 06 AM PST           38.56           4038         +              Normal
  02/22/2026 07 AM PST           38.61           4068         +              Normal
  02/22/2026 08 AM PST           38.65           4092         +              Normal
  02/22/2026 09 AM PST           38.69           4116         +              Normal
  02/22/2026 10 AM PST           38.73           4141         +              Normal
  02/22/2026 11 AM PST           38.78           4171         +              Normal
  02/22/2026 12 PM PST           38.82           4195         +              Normal
  02/22/2026 01 PM PST           38.87           4226         +              Normal
  02/22/2026 02 PM PST           38.91           4250         +              Normal
  02/22/2026 03 PM PST           38.95           4275         +              Normal
  02/22/2026 04 PM PST           38.99           4299         +              Normal
  02/22/2026 05 PM PST           39.04           4330         +              Normal
  02/22/2026 06 PM PST           39.08           4355         +              Normal
  02/22/2026 07 PM PST           39.12           4380         +              Normal
  02/22/2026 08 PM PST           39.16           4404         +              Normal
  02/22/2026 09 PM PST           39.20           4429         +              Normal
  02/22/2026 10 PM PST           39.23           4448         +              Normal
  02/22/2026 11 PM PST           39.27           4473         +              Normal
  02/23/2026 12 AM PST           39.30           4492         +              Normal
  02/23/2026 01 AM PST           39.33           4510         +              Normal
  02/23/2026 02 AM PST           39.36           4529         +              Normal
  02/23/2026 03 AM PST           39.38           4542         +              Normal
  02/23/2026 04 AM PST           39.40           4554         +              Normal
  02/23/2026 05 AM PST           39.42           4567         +              Normal
  02/23/2026 06 AM PST           39.44           4579         +              Normal
  02/23/2026 07 AM PST           39.46           4592         +              Normal
  02/23/2026 08 AM PST           39.47           4598         +              Normal
  02/23/2026 09 AM PST           39.49           4611         +              Normal
  02/23/2026 10 AM PST           39.50           4617         +              Normal
  02/23/2026 11 AM PST           39.51           4624         +              Normal
  02/23/2026 12 PM PST           39.52           4630         +              Normal
  02/23/2026 01 PM PST           39.52           4630         0              Normal
  02/23/2026 02 PM PST           39.53           4636         +              Normal
  02/23/2026 03 PM PST           39.53           4636         0              Normal
  02/23/2026 04 PM PST           39.53           4636         0              Normal
  02/23/2026 05 PM PST           39.53           4636         0              Normal
  02/23/2026 06 PM PST           39.53           4636         0              Normal
  02/23/2026 07 PM PST           39.52           4630         -              Normal
  02/23/2026 08 PM PST           39.52           4630         0              Normal
  02/23/2026 09 PM PST           39.51           4624         -              Normal
  02/23/2026 10 PM PST           39.50           4617         -              Normal
  02/23/2026 11 PM PST           39.49           4611         -              Normal
  02/24/2026 12 AM PST           39.48           4605         -              Normal
  02/24/2026 01 AM PST           39.47           4598         -              Normal
  02/24/2026 02 AM PST           39.46           4592         -              Normal
  02/24/2026 03 AM PST           39.44           4579         -              Normal
  02/24/2026 04 AM PST           39.43           4573         -              Normal
  02/24/2026 05 AM PST           39.41           4561         -              Normal
  02/24/2026 06 AM PST           39.39           4548         -              Normal
  02/24/2026 07 AM PST           39.38           4542         -              Normal
  02/24/2026 08 AM PST           39.35           4523         -              Normal
  02/24/2026 09 AM PST           39.34           4517         -              Normal
  02/24/2026 10 AM PST           39.31           4498         -              Normal
  02/24/2026 11 AM PST           39.29           4485         -              Normal
  02/24/2026 12 PM PST           39.27           4473         -              Normal
  02/24/2026 01 PM PST           39.25           4460         -              Normal
  02/24/2026 02 PM PST           39.22           4442         -              Normal
  02/24/2026 03 PM PST           39.20           4429         -              Normal
  02/24/2026 04 PM PST           39.17           4411         -              Normal
  02/24/2026 05 PM PST           39.15           4398         -              Normal
  02/24/2026 06 PM PST           39.12           4380         -              Normal
  02/24/2026 07 PM PST           39.10           4367         -              Normal
  02/24/2026 08 PM PST           39.07           4349         -              Normal
  02/24/2026 09 PM PST           39.04           4330         -              Normal
  02/24/2026 10 PM PST           39.01           4312         -              Normal
  02/24/2026 11 PM PST           38.99           4299         -              Normal
  02/25/2026 12 AM PST           38.96           4281         -              Normal
  02/25/2026 01 AM PST           38.93           4263         -              Normal
  02/25/2026 02 AM PST           38.90           4244         -              Normal
  02/25/2026 03 AM PST           38.87           4226         -              Normal
  02/25/2026 04 AM PST           38.84           4208         -              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.