Water Year 2023 Stanislaus River flow and water temperatures (daily) since October 1, 2022. Data from GDW, KOT, OBB, RIP stations retrieved from CDEC. Data from USGS gage 11302000 (Canyon) retrieved from NWIS. Figure generated by SacPAS including temperature threshold reference lines.
Juvenile Sampling
Stacked chart for Caswell Memorial State Park Rotary Screw Traps Daily Catch juvenile lifestages Unmarked Chinook. Top chart: Individual fish fork length (mm) plotted by color and symbol for each Unmarked Chinook lifestage: alevin, fry, parr, silvery parr and smolt. Middle chart: Dates of sampling at Caswell RSTs. Bottom chart: Daily catch juvenile lifestages Unmarked Chinook at Caswell RSTs with Flow at Ripon (in CFS). Caswell RSTs Data from PSMFC retrieved from CalFish and data from RIP station retrieved from CDEC; figure generated by SacPAS.Stacked chart for Mossdale Trawls Daily Catch juvenile lifestages Marked and Unmarked Chinook. Top chart: Individual fish fork length (mm) plotted by color and symbol for each Chinook lifestage: alevin, fry, parr, silvery parr and smolt. Middle chart: Dates of sampling at Mossdale Trawls. Bottom chart: Daily catch juvenile lifestages Marked and Unmarked Chinook at Mossdale Trawls with Flow at Vernalis (in CFS). Preliminary data from USFWS Lodi and CDEC; subject to revision. Figure generated by SacPAS.
2023 Mossdale Trawls Juvenile Chinook Sampling
Date
Species
Catch
Fork Length (mm)
Markcode
Lifestage
Date
Species
Catch
Fork Length (mm)
Markcode
Lifestage
2023-01-03
Chinook
1
33
None
alevin
2023-01-03
Chinook
1
35
None
alevin
2023-01-03
Chinook
1
190
AdClipped
smolt
2023-01-04
Chinook
1
36
None
fry
2023-01-06
Chinook
1
35
None
alevin
2023-01-11
Chinook
1
32
None
fry
2023-01-11
Chinook
1
35
None
fry
2023-01-17
Chinook
1
36
None
fry
2023-01-18
Chinook
1
36
None
alevin
2023-01-18
Chinook
1
35
None
fry
2023-01-18
Chinook
1
36
None
fry
2023-01-20
Chinook
1
35
None
alevin
2023-02-03
Chinook
1
36
None
fry
2023-02-10
Chinook
1
40
None
parr
2023-03-13
Chinook
1
39
None
parr
2023-04-24
Chinook
1
107
AdClipped
smolt
2023-04-25
Chinook
1
120
AdClipped
smolt
2023-04-27
Chinook
1
110
AdClipped
smolt
2023-05-02
Chinook
1
109
N/P
smolt
2023-05-04
Chinook
1
107
N/P
smolt
2023-05-04
Chinook
1
111
AdClipped
smolt
2023-05-05
Chinook
1
92
N/P
smolt
2023-05-05
Chinook
1
92
N/P
smolt
2023-05-05
Chinook
1
99
N/P
smolt
2023-05-05
Chinook
1
107
N/P
smolt
2023-05-06
Chinook
1
103
N/P
smolt
2023-05-06
Chinook
1
105
N/P
smolt
2023-05-06
Chinook
1
110
N/P
smolt
2023-05-06
Chinook
1
114
N/P
smolt
2023-05-06
Chinook
1
116
N/P
smolt
2023-05-06
Chinook
1
117
N/P
smolt
2023-05-08
Chinook
1
80
N/P
2023-05-08
Chinook
1
82
N/P
2023-05-08
Chinook
1
83
N/P
2023-05-08
Chinook
1
96
N/P
2023-05-09
Chinook
1
97
N/P
smolt
2023-05-11
Chinook
1
105
N/P
smolt
2023-05-12
Chinook
1
86
N/P
2023-05-12
Chinook
1
112
N/P
smolt
2023-05-13
Chinook
1
110
N/P
smolt
2023-05-13
Chinook
1
114
N/P
smolt
2023-05-13
Chinook
1
122
N/P
smolt
2023-05-15
Chinook
1
70
N/P
2023-05-15
Chinook
1
101
N/P
smolt
2023-05-15
Chinook
1
105
N/P
smolt
2023-05-15
Chinook
1
112
N/P
smolt
2023-05-16
Chinook
1
68
N/P
2023-05-16
Chinook
1
83
N/P
2023-05-18
Chinook
1
67
N/P
2023-05-18
Chinook
1
73
N/P
2023-05-18
Chinook
1
77
n/p
2023-05-18
Chinook
1
91
N/P
2023-05-18
Chinook
1
91
N/P
smolt
2023-05-18
Chinook
1
98
N/P
smolt
2023-05-18
Chinook
1
112
N/P
smolt
2023-05-19
Chinook
1
80
N/P
smolt
2023-05-19
Chinook
1
80
N/P
smolt
2023-05-20
Chinook
1
77
N/P
smolt
2023-05-20
Chinook
1
82
N/P
smolt
2023-05-20
Chinook
1
100
N/P
smolt
2023-05-20
Chinook
1
107
N/P
smolt
2023-05-20
Chinook
1
110
N/P
smolt
2023-05-20
Chinook
1
110
N/P
smolt
2023-05-20
Chinook
1
111
N/P
smolt
2023-05-20
Chinook
1
111
N/P
smolt
2023-05-20
Chinook
1
120
N/P
smolt
2023-05-20
Chinook
1
121
N/P
smolt
2023-05-20
Chinook
1
128
N/P
smolt
Preliminary data from USFWS Lodi; subject to revision. Table generated by SacPAS.
Updated: Thursday, 08-Jun-2023 17:28:02 PDT
Juvenile Sampling Summary for 09/15/2023-09/28/2023 (last 14 days) and 09/01/2023-09/14/2023 (previous 14 days)
Date Range
Data Item
Caswell Memorial State Park RSTs
Mossdale Trawls
Antioch Dunes SJ001S
Eddo's SJ005N
Medford Island SJ026S
Lost Isle SJ032S
Dad's Point SJ041N
Dos Reis SJ051E
Mossdale SJ056E
Weatherbee SJ058W
Big Beach SJ063W
Durham Site SJ068W
Sturgeon Bend SJ074W
Two Rivers RV Park SJ075E
Route 132 SJ077E
N. of Tuol. R. SJ083W
Date Range
Data Item
Caswell Memorial State Park RSTs
Mossdale Trawls
Antioch Dunes SJ001S
Eddo's SJ005N
Medford Island SJ026S
Lost Isle SJ032S
Dad's Point SJ041N
Dos Reis SJ051E
Mossdale SJ056E
Weatherbee SJ058W
Big Beach SJ063W
Durham Site SJ068W
Sturgeon Bend SJ074W
Two Rivers RV Park SJ075E
Route 132 SJ077E
N. of Tuol. R. SJ083W
09/15/2023-09/28/2023
Min Sample Date
2023-09-15
2023-09-18
2023-09-21
2023-09-15
2023-09-21
09/15/2023-09/28/2023
Max Sample Date
2023-09-22
2023-09-18
2023-09-21
2023-09-21
2023-09-21
09/15/2023-09/28/2023
Days with Sampling
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
09/15/2023-09/28/2023
Fall Chinook
0
0
0
0
0
09/15/2023-09/28/2023
Spring Chinook
0
0
0
0
0
09/15/2023-09/28/2023
Winter Chinook
0
0
0
0
0
09/15/2023-09/28/2023
LateFall Chinook
0
0
0
0
0
09/15/2023-09/28/2023
Chinook (ad-clip)
0
0
0
0
0
09/15/2023-09/28/2023
Steelhead (natural)
0
0
0
0
0
09/15/2023-09/28/2023
Steelhead (ad-clip)
0
0
0
0
0
09/15/2023-09/28/2023
Avg Flow (cfs)
09/15/2023-09/28/2023
Avg Water Temp (F)
32.0
70.0
70.0
72.3
72.4
70.3
09/15/2023-09/28/2023
Avg Turbidity (NTU)
16.6
21.2
35.0
13.1
16.0
09/01/2023-09/14/2023
Min Sample Date
2023-09-01
2023-09-07
2023-09-07
2023-09-07
09/01/2023-09/14/2023
Max Sample Date
2023-09-13
2023-09-13
2023-09-07
2023-09-07
09/01/2023-09/14/2023
Days with Sampling
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
09/01/2023-09/14/2023
Fall Chinook
0
0
0
0
09/01/2023-09/14/2023
Spring Chinook
0
0
0
0
09/01/2023-09/14/2023
Winter Chinook
0
0
0
0
09/01/2023-09/14/2023
LateFall Chinook
0
0
0
0
09/01/2023-09/14/2023
Chinook (ad-clip)
0
0
0
0
09/01/2023-09/14/2023
Steelhead (natural)
0
0
0
0
09/01/2023-09/14/2023
Steelhead (ad-clip)
0
0
0
0
09/01/2023-09/14/2023
Avg Flow (cfs)
673.6
2545.8
09/01/2023-09/14/2023
Avg Water Temp (F)
32.0
69.8
72.1
72.7
71.1
09/01/2023-09/14/2023
Avg Turbidity (NTU)
20.9
15.4
17.4
28.1
source of Avg Flow (cfs)
Ripon USGS (RIP)
Vernalis (VNS)
source of Avg Water Temp (F)
Caswell RST
Vernalis (VNS)
Antioch Dunes
Eddo's
Medford Island
Lost Isle
Dad's Point
Dos Reis
Mossdale
Weatherbee
Big Beach
Durham Site
Sturgeon Bend
Two Rivers RV Park
Route 132
N. of Tuol. R.
source of Avg Turbidity (NTU)
Caswell RSTs
Mossdale Trawls
Antioch Dunes
Eddo's
Medford Island
Lost Isle
Dad's Point
Dos Reis
Mossdale
Weatherbee
Big Beach
Durham Site
Sturgeon Bend
Two Rivers RV Park
Route 132
N. of Tuol. R.
Caswell Memorial State Park RSTs: Preliminary data from PSMFC via StreamNet and CDEC; subject to revision.
Mossdale Trawls: Preliminary data from USFWS Lodi and CDEC; subject to revision.
Antioch Dunes Beach Seine: Preliminary data from USFWS Lodi and CDEC; subject to revision.
Eddo's Beach Seine: Preliminary data from USFWS Lodi and CDEC; subject to revision.
Medford Island Beach Seine: Preliminary data from USFWS Lodi and CDEC; subject to revision.
Lost Isle Beach Seine: Preliminary data from USFWS Lodi and CDEC; subject to revision.
Dad's Point Beach Seine: Preliminary data from USFWS Lodi and CDEC; subject to revision.
Dos Reis Beach Seine: Preliminary data from USFWS Lodi and CDEC; subject to revision.
Mossdale Beach Seine: Preliminary data from USFWS Lodi and CDEC; subject to revision.
Weatherbee Beach Seine: Preliminary data from USFWS Lodi and CDEC; subject to revision.
Big Beach Beach Seine: Preliminary data from USFWS Lodi and CDEC; subject to revision.
Durham Site Beach Seine: Preliminary data from USFWS Lodi and CDEC; subject to revision.
Sturgeon Bend Beach Seine: Preliminary data from USFWS Lodi and CDEC; subject to revision.
Two Rivers RV Park Beach Seine: Preliminary data from USFWS Lodi and CDEC; subject to revision.
Route 132 Beach Seine: Preliminary data from USFWS Lodi and CDEC; subject to revision.
N. of Tuol. R. Beach Seine: Preliminary data from USFWS Lodi and CDEC; subject to revision.
Averages: calculated for all non-null data points within the 7 day reporting period.
Data retrieved from PSMFC via CalFish, CDEC, DatCall email distribution. Figure and Table generated by SacPAS.
Updated: Friday, 29-Sep-2023 16:19:00 PDT
Current River Conditions
Stanislaus Watershed Select River Conditions for 2023-09-28
Stanislaus
Tuolumne
Merced
San Joaquin
Location
GDW
OBB
RIP
KOT
LGN
TRW
MOD
TRT
MBH
CRS
MST
NEW
MRB
VNS
MSD
OH1
Flow (CFS)
318 a
Note: a. Data is not available for 2023-09-28. Most recent data up to 5 days prior is reported.
Stanislaus
Tuolumne
Merced
San Joaquin
Location
OBB
RIP
RPN
MOD
CRS
VNS
MSD
OH1
Water Temperature (°F)
56.6
62.9
64.0
64.1
65.5
67.9
68.9
68.7
Stanislaus
Tuolumne
San Joaquin
Location
GDW
TLG
SJF
Full Natural Flow (CFS)
Stanislaus
Tuolumne
Merced
San Joaquin
Location
NML
DNP
EXC
MIL
Reservoir Storage (TAF)
1897
1722
753
220
Res Above Top of Conserv Stor (TAF)
-404 a
-80 a
-116 a
-298 a
Reservoir Inflow (CFS)
Reservoir Outflow (CFS)
Note: a. Data is not available for 2023-09-28. Most recent data up to 5 days prior is reported.
Stanislaus
San Joaquin
Location
RPN
MSD
OH1
Dissolved Oxygen (mg/L)
9.3
8.5
8.5
Data retrieved from CDEC; Current River Conditions tables generated by SacPAS.
Updated: Friday, 29-Sep-2023 06:59:00 PDT
Water Temperature Min, Max, Average
Stacked chart for daily water temperatures Stanislaus River upstream of Knights Ferry for current 60 days period. Top chart: Daily Min, Max and average water temperatures (in degrees Fahrenheit). Bottom chart: Daily difference between Max and Min measured water temperature in degrees Fahrenheit. Data from USGS gage 11302000 retrieved from NWIS; figure generated by SacPAS (including date-based water temperature threshold reference lines).
Stacked chart for daily water temperatures Stanislaus River at Orange Blossom Bridge for current 60 days period. Top chart: Daily Min, Max and average water temperatures (in degrees Fahrenheit). Bottom chart: Daily difference between Max and Min measured water temperature in degrees Fahrenheit. Data from OBB station retrieved from CDEC; figure generated by SacPAS (including date-based water temperature threshold reference lines).
Stacked chart for daily water temperatures Stanislaus River at Ripon for current 60 days period. Top chart: Daily Min, Max and average water temperatures (in degrees Fahrenheit). Bottom chart: Daily difference between Max and Min measured water temperature in degrees Fahrenheit. Data from USGS RIP station retrieved from CDEC; figure generated by SacPAS (including date-based water temperature threshold reference lines).
Stacked chart for daily water temperatures San Joaquin River near Vernalis for current 60 days period. Top chart: Daily Min, Max and average water temperatures (in degrees Fahrenheit). Bottom chart: Daily difference between Max and Min measured water temperature in degrees Fahrenheit. Data from VNS station retrieved from CDEC; figure generated by SacPAS (including date-based water temperature threshold reference lines).
Historical daily water temperatures from 2007 to present date, Stanislaus River upstream of Knights Ferry for 60 day window before and after "current calendar date". Each "year" is the calendar year for the first date in the 121 day period. Water temperatures in degrees Fahrenheit are color-coded by threshold reference categories (1) steelhead alevins below 54 degrees Fahrenheit, (2) steelhead juveniles (suboptimal) above 68 degrees Fahrenheit, and (3) degrees Fahrenheit between the two. Temperature based coding is for reference only; fish are not present for all dates or all locations. Data from USGS gage 11302000 retrieved from NWIS; figure generated by SacPAS.
Historical daily water temperatures (in degrees Fahrenheit) from 2007 to present date, Stanislaus River upstream of Knights Ferry for 60 day window before and after "current calendar date". Each "year" is the calendar year for the first date in the 121 day period. For all data presented, the minimum Date Period Mean is plotted as Black dotted line. For all data presented, the maximum Date Period Mean is plotted as Black dashed line. Current year is indicated by Black bold solid line. Data from USGS gage 11302000 retrieved from NWIS; figure generated by SacPAS.
Historical daily water temperatures from 2000 to present date, Stanislaus River at Orange Blossom Bridge for 60 day window before and after "current calendar date". Each "year" is the calendar year for the first date in the 121 day period. Water temperatures in degrees Fahrenheit are color-coded by threshold reference categories (1) steelhead alevins below 54 degrees Fahrenheit, (2) steelhead juveniles (suboptimal) above 68 degrees Fahrenheit, and (3) degrees Fahrenheit between the two. Temperature based coding is for reference only; fish are not present for all dates or all locations. Data from OBB station retrieved from CDEC; figure generated by SacPAS.
Historical daily water temperatures (in degrees Fahrenheit) from 2000 to present date, Stanislaus River at Orange Blossom Bridge for 60 day window before and after "current calendar date". Each "year" is the calendar year for the first date in the 121 day period. For all data presented, the minimum Date Period Mean is plotted as Black dotted line. For all data presented, the maximum Date Period Mean is plotted as Black dashed line. Current year is indicated by Black bold solid line. Data from OBB station retrieved from CDEC; figure generated by SacPAS.
Historical daily water temperatures from 2011 to present date, Stanislaus River at Ripon for 60 day window before and after "current calendar date". Each "year" is the calendar year for the first date in the 121 day period. Water temperatures in degrees Fahrenheit are color-coded by threshold reference categories (1) steelhead alevins below 54 degrees Fahrenheit, (2) steelhead juveniles (suboptimal) above 68 degrees Fahrenheit, and (3) degrees Fahrenheit between the two. Temperature based coding is for reference only; fish are not present for all dates or all locations. Data from USGS RIP gage retrieved from CDEC; figure generated by SacPAS.
Historical daily water temperatures (in degrees Fahrenheit) from 2011 to present date, Stanislaus River at Ripon for 60 day window before and after "current calendar date". Each "year" is the calendar year for the first date in the 121 day period. For all data presented, the minimum Date Period Mean is plotted as Black dotted line. For all data presented, the maximum Date Period Mean is plotted as Black dashed line. Current year is indicated by Black bold solid line. Data from USGS RIP gage retrieved from CDEC; figure generated by SacPAS.
Historical daily water temperatures from 2014 to present date, San Joaquin River near Vernalis for 60 day window before and after "current calendar date". Each "year" is the calendar year for the first date in the 121 day period. Water temperatures in degrees Fahrenheit are color-coded by threshold reference categories (1) steelhead alevins below 54 degrees Fahrenheit, (2) steelhead juveniles (suboptimal) above 68 degrees Fahrenheit, and (3) degrees Fahrenheit between the two. Temperature based coding is for reference only; fish are not present for all dates or all locations. Data from VNS station retrieved from CDEC; figure generated by SacPAS.
Historical daily water temperatures (in degrees Fahrenheit) from 2014 to present date, San Joaquin River near Vernalis for 60 day window before and after "current calendar date". Each "year" is the calendar year for the first date in the 121 day period. For all data presented, the minimum Date Period Mean is plotted as Black dotted line. For all data presented, the maximum Date Period Mean is plotted as Black dashed line. Current year is indicated by Black bold solid line. Data from VNS station retrieved from CDEC; figure generated by SacPAS.
Goodwin Dam Spillway Discharge
Goodwin (daily) releases to the Stanislaus River since October 1 (water year). Data from GDW station on CDEC; figure generated by SacPAS.