WY2024 Current Conditions for the Salmon Monitoring Team
Content on this page is updated daily and includes the most up-to-date datasets contained in the SacPAS database. Juvenile monitoring and salvage data are updated as made available publicly.
Data Load Timing:
- CDEC 6:00am
- Knights Landing RST 8:10am, 4:10pm
- Sacramento Trawls and Beach Seines weekly, typically Monday
- Salvage 6:10am, 1:10pm
SacPAS Related Queries and Tools:
- Juvenile Monitoring & Sampling data queries
- Juvenile Salvage & Loss data queries
- Loss and Salvage Predictor real-time forecasts from approximately December to mid-June
DCC Operations
| Date | Knights Landing RST: Winter Chinook: Catch Index | Knights Landing RST: Older Chinook: Catch Index | Sacramento Trawls: Older Chinook: Catch Index | Sacramento Beach Seines: Older Chinook: Catch Index | Alert: Catch Index > 5 | Alert: Catch Index 3 < X ≤ 5 |
|---|---|---|---|---|---|---|
| 2023-12-31 | ||||||
| 2023-12-30 | ||||||
| 2023-12-29 | ||||||
| 2023-12-28 | ||||||
| 2023-12-27 | ||||||
| 2023-12-26 | ||||||
| 2023-12-25 | ||||||
| 2023-12-24 | ||||||
| 2023-12-23 | ||||||
| 2023-12-22 | 0 | 0 | ||||
| 2023-12-21 | ||||||
| 2023-12-20 | 0 | 1.3 | ||||
| 2023-12-19 | ||||||
| 2023-12-18 | 0 | 0 | ||||
| 2023-12-17 | ||||||
| 2023-12-16 | ||||||
| 2023-12-15 | 0 | 0 | ||||
| 2023-12-14 | ||||||
| 2023-12-13 | 0 | 0 | ||||
| 2023-12-12 | ||||||
| 2023-12-11 | 0 | 0 | 0 | 0 | ||
| 2023-12-10 | ||||||
| 2023-12-09 | ||||||
| 2023-12-08 | ||||||
| 2023-12-07 | 0 | 0 | ||||
| 2023-12-06 | 0 | |||||
| 2023-12-05 | 0 | |||||
| 2023-12-04 | 0 | 0 | 0 | 0 | ||
| 2023-12-03 | ||||||
| 2023-12-02 | 0 | 0 | ||||
| 2023-12-01 | 0 | 0 | ||||
| 2023-11-30 | 0 | 0 | ||||
| 2023-11-29 | 0 | 0 | 0 | 0 | ||
| 2023-11-28 | 0 | 0 | ||||
| 2023-11-27 | 0 | 0 | 0 | 0 | ||
| 2023-11-26 | 1.1 | 1.1 | ||||
| 2023-11-25 | 0 | 0 | ||||
| 2023-11-24 | 0 | 0 | ||||
| 2023-11-23 | 0 | 0 | ||||
| 2023-11-22 | 0 | 0 | 0 | 0 | ||
| 2023-11-21 | 0 | 0 | 0 | 0 | ||
| 2023-11-20 | 0 | 0 | 0 | 0 | ||
| 2023-11-19 | 0 | 0 | ||||
| 2023-11-18 | 0 | 0 | ||||
| 2023-11-17 | 0 | 0 | ||||
| 2023-11-16 | 0 | 0 | 0 | 0 | ||
| 2023-11-15 | 0 | 0 | 0 | |||
| 2023-11-14 | 0 | 0 | 0 | |||
| 2023-11-13 | 0 | 0 | 0 | 0 | ||
| 2023-11-12 | 0 | 0 | ||||
| 2023-11-11 | 0 | 0 | ||||
| 2023-11-10 | 0 | 0 | ||||
| 2023-11-09 | 0 | 0 | 0 | 0 | ||
| 2023-11-08 | 0 | 0 | ||||
| 2023-11-07 | 0 | 0 | 0 | |||
| 2023-11-06 | 0 | 0 | 0 | 0 | ||
| 2023-11-05 | 0 | 0 | ||||
| 2023-11-04 | 0 | 0 | ||||
| 2023-11-03 | 0 | 0 | 0 | 0 | ||
| 2023-11-02 | 0 | 0 | ||||
| 2023-11-01 | 0 | 0 | 0 | 0 | ||
| 2023-10-31 | 0 | 0 | ||||
| 2023-10-30 | 0 | 0 | 0 | 0 | ||
| 2023-10-29 | 0.5 | 0.5 | ||||
| 2023-10-28 | 0 | 0 | ||||
| 2023-10-27 | 0 | 0 | 0 | 0 | ||
| 2023-10-26 | 0.5 | 0.5 | ||||
| 2023-10-25 | 0 | 0 | ||||
| 2023-10-24 | 1.0 | 1.0 | ||||
| 2023-10-23 | 0 | 0 | 0 | 0 | ||
| 2023-10-22 | 0 | 0 | ||||
| 2023-10-21 | 0.5 | 0.5 | ||||
| 2023-10-20 | 0 | 0 | 0 | 0 | ||
| 2023-10-19 | 0 | 0 | ||||
| 2023-10-18 | 0 | 0 | 0 | 0 | ||
| 2023-10-17 | 0.5 | 0.5 | ||||
| 2023-10-16 | 0 | 0 | ||||
| 2023-10-15 | ||||||
| 2023-10-14 | ||||||
| 2023-10-13 | 0 | 0 | ||||
| 2023-10-12 | 0 | 0 | ||||
| 2023-10-11 | 0 | 0 | 0 | 0 | ||
| 2023-10-10 | 0 | 0 | 0 | 0 | ||
| 2023-10-09 | ||||||
| 2023-10-08 | ||||||
| 2023-10-07 | ||||||
| 2023-10-06 | 0 | 0 | 0 | 0 | ||
| 2023-10-05 | 0 | 0 | 0 | |||
| 2023-10-04 | 0 | 0 | 0 | 0 | ||
| 2023-10-03 | 0 | 0 | ||||
| 2023-10-02 | 0 | 0 | ||||
| 2023-10-01 |
0 value indicates sampling occurred. Calculations generated by SacPAS. Data Courtesy of USFWS Lodi via weekly email and CDFW via StreamNet.
Updated: Monday, 01-Jan-2024 16:15:10 PST
Part 1: DCC operations by Knights Landing or Sacramento Catch Indices (PA 4-56)
Monitoring period: 1 October-30 November
Water quality criteria per D-1641 are met and either the Knights Landing Catch Index or Sacramento Catch Index is greater than 5.0 fish per day (close until both < 3/day)
Water quality criteria per D-1641 are met, either Knights Landing Catch Index or the Sacramento Catch Index are greater than 3.0 fish per day but less than or equal to five fish per day. (closed for 3 days)
Alerts: Deer Creek, Mill Creek, Wilkins Slough, Knights Landing
| Date | Mill Creek (MLM): mean daily flow (cfs) | Mill Creek (MLM): flow percent change | Mill Creek (MLM): Alert | Deer Creek (DCV): mean daily flow (cfs) | Deer Creek (DCV): flow percent change | Deer Creek (DCV): Alert | Wilkins Slough (WLK): mean daily flow (cfs) | Knights Landing RST: water temperature (f) | WLK-KNL: Alert |
|---|---|---|---|---|---|---|---|---|---|
| 4/17/2024 | 479.1 | 8.2% | Flow>95cfs | 531.0 | 0.3% | Flow>95cfs | 17918.8 | 45.1 | WLK>7500cfs and KNL<56.3F |
| 4/16/2024 | 443.0 | -3.6% | Flow>95cfs | 529.3 | -7.6% | Flow>95cfs | 17699.3 | 45.3 | WLK>7500cfs and KNL<56.3F |
| 4/15/2024 | 459.6 | -7.1% | Flow>95cfs | 572.9 | -4.0% | Flow>95cfs | 16235.4 | 46 | WLK>7500cfs and KNL<56.3F |
| 4/14/2024 | 494.7 | 1.2% | Flow>95cfs | 596.8 | 2.0% | Flow>95cfs | 15313.0 | 47.1 | WLK>7500cfs and KNL<56.3F |
| 4/13/2024 | 488.9 | -5.1% | Flow>95cfs | 585.2 | 8.5% | Flow>95cfs | 14323.7 | 47.9 | WLK>7500cfs and KNL<56.3F |
| 4/12/2024 | 515.4 | 20.2% | Flow>95cfs | 539.6 | 13.7% | Flow>95cfs | 14284.5 | 48 | WLK>7500cfs and KNL<56.3F |
| 4/11/2024 | 428.8 | 15.3% | Flow>95cfs | 474.8 | 6.3% | Flow>95cfs | 14247.5 | 47.3 | WLK>7500cfs and KNL<56.3F |
Calculations generated by SacPAS. Data Courtesy of CDEC and CDFW via StreamNet.
Updated: Thursday, 18-Apr-2024 16:30:03 PDT
Monitor Deer Creek and Mill Creek for average daily flow >95 cfs or >50% change from prior day
Monitor for both conditions: Wilkins Slough average daily flow >7500 cfs and Knights Landing temperature <56.3F
Juvenile Sampling
Juvenile Sampling Summary for 04/11/2024-04/17/2024 (last 7 days) and 04/04/2024-04/10/2024 (previous 7 days)
| Date Range | Data Item | Butte Creek Diversion and RST | Tisdale Weir RST | Knights Landing RST | Lower Feather River RST | Lower Sacramento River RST | Sacramento Trawls (@ Sherwood Harbor) | Sacramento Beach Seines | Chipps Island Trawls | Mossdale Trawls |
|---|---|---|---|---|---|---|---|---|---|---|
| Date Range | Data Item | Butte Creek Diversion and RST | Tisdale Weir RST | Knights Landing RST | Lower Feather River RST | Lower Sacramento River RST | Sacramento Trawls (@ Sherwood Harbor) | Sacramento Beach Seines | Chipps Island Trawls | Mossdale Trawls |
| 04/11/2024-04/17/2024 | Min Sample Date | 2024-04-11 | 2024-04-11 | 2024-04-11 | 2024-04-11 | 2024-04-11 | ||||
| 04/11/2024-04/17/2024 | Max Sample Date | 2024-04-14 | 2024-04-17 | 2024-04-15 | 2024-04-17 | 2024-04-17 | ||||
| 04/11/2024-04/17/2024 | Days with Sampling | 4 | 7 | 5 | 0 | 0 | ||||
| 04/11/2024-04/17/2024 | Fall Chinook | 3 | 111 | 292 | 102 | 74 | ||||
| 04/11/2024-04/17/2024 | Spring Chinook | 3 | 78 | 0 | 117 | 530 | ||||
| 04/11/2024-04/17/2024 | Winter Chinook | 0 | 0 | 0 | 0 | 9 | ||||
| 04/11/2024-04/17/2024 | LateFall Chinook | 0 | 0 | 7 | 0 | 0 | ||||
| 04/11/2024-04/17/2024 | Chinook (ad-clip) | 0 | 66 | 16 | 0 | 0 | ||||
| 04/11/2024-04/17/2024 | Steelhead (natural) | 0 | 0 | 0 | 0 | 0 | ||||
| 04/11/2024-04/17/2024 | Steelhead (ad-clip) | 0 | 0 | 0 | 0 | 0 | ||||
| 04/11/2024-04/17/2024 | Avg Flow (cfs) | 620.5 | 15510.4 | 15717.5 | 9956.3 | 31425.9 | 31425.9 | 39163.1 | 5367.3 | |
| 04/11/2024-04/17/2024 | Avg Water Temp (F) | 15.2 | 46.7 | 45.2 | 58.6 | 58.6 | 59.5 | 58.7 | ||
| 04/11/2024-04/17/2024 | Avg Turbidity (NTU) | 14.7 | 20.5 | 3.0 | 19.9 | 19.9 | 18.3 | |||
| 04/04/2024-04/10/2024 | Min Sample Date | 2024-04-04 | 2024-04-04 | 2024-04-04 | 2024-04-04 | 2024-04-04 | 2024-04-04 | 2024-04-04 | ||
| 04/04/2024-04/10/2024 | Max Sample Date | 2024-04-07 | 2024-04-10 | 2024-04-10 | 2024-04-10 | 2024-04-08 | 2024-04-09 | 2024-04-09 | ||
| 04/04/2024-04/10/2024 | Days with Sampling | 4 | 7 | 7 | 7 | 5 | 0 | 0 | ||
| 04/04/2024-04/10/2024 | Fall Chinook | 0 | 55 | 58 | 378 | 88 | 28 | 61 | ||
| 04/04/2024-04/10/2024 | Spring Chinook | 13 | 130 | 111 | 2 | 46 | 72 | 310 | ||
| 04/04/2024-04/10/2024 | Winter Chinook | 0 | 0 | 0 | 0 | 0 | 2 | 6 | ||
| 04/04/2024-04/10/2024 | LateFall Chinook | 0 | 0 | 0 | 1 | 0 | 0 | 0 | ||
| 04/04/2024-04/10/2024 | Chinook (ad-clip) | 0 | 21 | 29 | 30 | 11 | 0 | 0 | ||
| 04/04/2024-04/10/2024 | Steelhead (natural) | 1 | 0 | 0 | 1 | 0 | 0 | 0 | ||
| 04/04/2024-04/10/2024 | Steelhead (ad-clip) | 0 | 0 | 0 | 1 | 1 | 0 | 0 | ||
| 04/04/2024-04/10/2024 | Avg Flow (cfs) | 632.1 | 13946.8 | 14650.3 | 12026.3 | 35091.1 | 35091.1 | 44300.7 | 4705.8 | |
| 04/04/2024-04/10/2024 | Avg Water Temp (F) | 8.1 | 13.2 | 45.5 | 43.8 | 44.2 | 56.0 | 56.0 | 57.4 | 57.0 |
| 04/04/2024-04/10/2024 | Avg Turbidity (NTU) | 1.3 | 21.4 | 26.0 | 3.4 | 9.9 | 26.2 | 26.2 | 29.8 | |
| source of Avg Flow (cfs) | Butte Creek nr Chico (BCK) | Colousa (COL) | Wilkins Slough (WLK) | Boyd's Landing (FSB) | Verona (VON) | Freeport (FPT) | Freeport (FPT) | Delta OutFlow (DTO) | Vernalis (VNS) | |
| source of Avg Water Temp (F) | Butte Creek | Tisdale Weir | Knights Landing | Lower Feather River | Lower Sacramento River | Hood (SRH) | Hood (SRH) | Chipps Island Trawls | Vernalis (VNS) | |
| source of Avg Turbidity (NTU) | Butte Creek | Tisdale Weir | Knights Landing | Lower Feather River | Lower Sacramento River | Sacramento Trawls | Sacramento Trawls | Chipps Island Trawls | Mossdale Trawls |
- Butte Creek Diversion and RST: Preliminary data from CDFW via StreamNet; subject to revision.
- Tisdale Weir RST: Preliminary data from CDFW via StreamNet and CDEC; subject to revision.
- Knights Landing RST: Preliminary data from CDFW via StreamNet and CDEC; subject to revision. Turbidity is a discrete measure. KNL measured in FTU which should be roughly equivalent to NTU.
- Lower Feather River RST: Preliminary data from CDFW via StreamNet; subject to revision.
- Lower Sacramento River RST: Preliminary data from CDFW via StreamNet; subject to revision.
- Sacramento Trawls (@ Sherwood Harbor): Preliminary data from USFWS Lodi and CDEC; subject to revision.
- Sacramento Beach Seines: Preliminary data from USFWS Lodi and CDEC; subject to revision.
- Chipps Island Trawls: Preliminary data from USFWS Lodi and CDEC; subject to revision.
- Mossdale Trawls: Preliminary data from USFWS Lodi and CDEC; subject to revision.
- Averages: calculated for all non-null data points within the 7 day reporting period.
Updated: Thursday, 18-Apr-2024 16:15:54 PDT
Historical Migration Pattern for "Today"
| Species | Red Bluff Diversion Dam | Tisdale RST | Knights Landing RST | Sac Trawl (Sherwood) Catch Index | Chipps Island Trawl Catch Index | Salvage |
|---|---|---|---|---|---|---|
| Chinook, Winter-run, Unclipped | 99.9% (99.9%,100.0%) BY: 2014 - 2022 |
100.0% (100.0%,100.0%) BY: 2014 - 2022 |
99.9% (99.6%,100.2%) BY: 2014 - 2022 |
94.5% (84.4%,104.6%) BY: 2014 - 2022 |
93.1% (87.3%,98.9%) BY: 2014 - 2022 |
96.4% (93.5%,99.3%) WY: 2014 - 2023 |
| Chinook, Spring-run, Unclipped | 84.0% (72.9%,95.2%) BY: 2014 - 2022 |
96.0% (93.8%,98.2%) BY: 2014 - 2022 |
89.7% (80.8%,98.6%) BY: 2014 - 2022 |
77.1% (68.0%,86.2%) BY: 2014 - 2022 |
41.5% (26.4%,56.6%) BY: 2014 - 2022 |
34.7% (13.9%,55.5%) WY: 2014 - 2023 |
| Steelhead, Unclipped (January-December) | 7.4% (3.4%,11.3%) BY: 2014 - 2023 |
64.0% (40.1%,87.9%) BY: 2014 - 2023 |
64.9% (42.4%,87.4%) BY: 2014 - 2023 |
73.4% (45.2%,101.6%) BY: 2014 - 2023 |
74.8% (64.2%,85.4%) BY: 2014 - 2023 |
|
| Steelhead, Unclipped (December-March) | 100.0% (100.0%,100.0%) WY: 2015 - 2024 |
|||||
| Steelhead, Unclipped (April-June) | 44.2% (27.3%,61.1%) WY: 2014 - 2023 |
Calculations generated by SacPAS Migration Timing and Conditions by Cohort and Salvage Timing. Data Courtesy of USFWS, Red Bluff; CDFW via StreamNet and CDEC; USFWS, Lodi.
Updated: Thursday, 18-Apr-2024 06:32:28 PDT
Species Distribution Estimates
Estimates presented during weekly meetings. Submitted by BOR to SacPAS after weekly meetings for generation of plots.
Loss&Salvage Predictor Estimates
Current estimates generated by the Loss and Salvage Predictor tool. Predicts loss and/or salvage of endangered steelhead and winter run Chinook salmon at the CVP and SWP pumping facilities at the southern end of the Sacramento-San Joaquin Delta. Available Decemer to mid-June.
Updated: Thursday, 18-Apr-2024 10:05:04 PDT
| Parameter Token | Parameter Description | Water Year | Week | Week Type | Value |
|---|---|---|---|---|---|
| temp.mal | Water Temperature °C, Mallard Island (MAL) from CDEC | 2024 | 28 | Data | 15 |
| precip | Precipitation Inches, 5 day running sum, Stockton Fire Station (SFS) from CDEC | 2024 | 28 | Data | 0.48 |
| om.sum | OMR Flows CFS, sum of tidally-filtered discharge at Middle River and Bacon Island from USGS | 2024 | 28 | Data | -1569 |
| sac | Sacramento Flows CFS, Freeport (FPT) from CDEC | 2024 | 28 | Data | 31819 |
| dcc | DCC Gate Status from BOR | 2024 | 28 | Data | closed |
| sjr | San Joaquin River Flow CFS, Vernalis (VNS) from CDEC | 2024 | 28 | Data | 4934 |
| export | Exports CFS, sum of Pumping Discharge at HRO and TRP from CDEC | 2024 | 28 | Data | 2602 |
| steelhead.pw | Steelhead Previous Week | 2024 | 28 | Data | 592.82 |
| winter.pw | Winter Chinook Previous Week | 2024 | 28 | Data | 342.21 |
| temp.mal | Water Temperature °C, Mallard Island (MAL) from CDEC | 2024 | 29 | Forecast | 15 |
| precip | Precipitation Inches, 5 day running sum, Stockton Fire Station (SFS) from CDEC | 2024 | 29 | Forecast | 0.48 |
| om.sum | OMR Flows CFS, sum of tidally-filtered discharge at Middle River and Bacon Island from USGS | 2024 | 29 | Forecast | -1569 |
| sac | Sacramento Flows CFS, Freeport (FPT) from CDEC | 2024 | 29 | Forecast | 31819 |
| dcc | DCC Gate Status from BOR | 2024 | 29 | Forecast | closed |
| sjr | San Joaquin River Flow CFS, Vernalis (VNS) from CDEC | 2024 | 29 | Forecast | 4934 |
| export | Exports CFS, sum of Pumping Discharge at HRO and TRP from CDEC | 2024 | 29 | Forecast | 2602 |
| steelhead.pw | Steelhead Previous Week | 2024 | 29 | Forecast | 284.17 |
| winter.pw | Winter Chinook Previous Week | 2024 | 29 | Forecast | 35.68 |
| Parameter Token | Parameter Description | Water Year | Week | Value |
|---|---|---|---|---|
| Steelhead.Low | Predicted Steelhead, Low % | 2024 | 28 | 45 |
| Steelhead.Median | Predicted Steelhead, Median % | 2024 | 28 | 284 |
| Steelhead.High | Predicted Steelhead, High % | 2024 | 28 | 705 |
| Winter.Run.Low | Predicted Chinook Winter Run, Low % | 2024 | 28 | 0 |
| Winter.Run.Median | Predicted Chinook Winter Run, Median % | 2024 | 28 | 36 |
| Winter.Run.High | Predicted Chinook Winter Run, High % | 2024 | 28 | 337 |
| Steelhead.Observed.loss | Observed Steelhead loss | 2024 | 28 | 571 |
| Winter.Run.Observed.loss | Observed Chinook Winter Run loss | 2024 | 28 | 109 |
| Steelhead.Cumulative.loss | Observed Steelhead Cumulative loss | 2024 | 28 | 4342 |
| Winter.Run.Cumulative.loss | Observed Chinook Winter Run Cumulative loss | 2024 | 28 | 4127 |
| Steelhead.Low | Predicted Steelhead, Low % | 2024 | 29 | 27 |
| Steelhead.Median | Predicted Steelhead, Median % | 2024 | 29 | 103 |
| Steelhead.High | Predicted Steelhead, High % | 2024 | 29 | 320 |
| Winter.Run.Low | Predicted Chinook Winter Run, Low % | 2024 | 29 | 0 |
| Winter.Run.Median | Predicted Chinook Winter Run, Median % | 2024 | 29 | 8 |
| Winter.Run.High | Predicted Chinook Winter Run, High % | 2024 | 29 | 61 |
| Steelhead.Observed.loss | Observed Steelhead loss | 2024 | 29 | NA |
| Winter.Run.Observed.loss | Observed Chinook Winter Run loss | 2024 | 29 | NA |
| Steelhead.Cumulative.loss | Observed Steelhead Cumulative loss | 2024 | 29 | 4342 |
| Winter.Run.Cumulative.loss | Observed Chinook Winter Run Cumulative loss | 2024 | 29 | 4127 |
Delta STARS Estimates
Current estimates generated by the Delta STARS tool. STARS Predicted Survival, Travel-Time and Routing for Late-Fall Run and Winter Run Chinook. Delta STARS developed by USGS Quantitative Fisheries Ecology Section and deployed by SacPAS.
Updated: Thursday, 18-Apr-2024 10:06:01 PDT
| Stock | Date | Route | Parameter | Estimate | Lower 80% Credible Limit | Upper 80% Credible Limit |
|---|---|---|---|---|---|---|
| Winter Chinook | 2024-04-17 | Overall | Median Travel Time | 5.3941 | 5.2984 | 5.5114 |
| Winter Chinook | 2024-04-17 | Overall | Survival | 0.49649 | 0.43677 | 0.55397 |
| Winter Chinook | 2024-04-17 | Sacramento River | Median Travel Time | 4.998 | 5 | 5 |
| Winter Chinook | 2024-04-17 | Sacramento River | Routing Probability | 0.62967 | 0.60703 | 0.65403 |
| Winter Chinook | 2024-04-17 | Sacramento River | Survival | 0.54133 | 0.4686 | 0.60631 |
| Winter Chinook | 2024-04-17 | Yolo Bypass | Median Travel Time | 9.871 | 9 | 11 |
| Winter Chinook | 2024-04-17 | Yolo Bypass | Routing Probability | 0 | 0 | 0 |
| Winter Chinook | 2024-04-17 | Yolo Bypass | Survival | 0.59135 | 0.4468 | 0.72058 |
| Winter Chinook | 2024-04-17 | Sutter Slough | Median Travel Time | 5.1 | 5 | 5.1 |
| Winter Chinook | 2024-04-17 | Sutter Slough | Routing Probability | 0.13246 | 0.11796 | 0.14783 |
| Winter Chinook | 2024-04-17 | Sutter Slough | Survival | 0.47044 | 0.37775 | 0.56125 |
| Winter Chinook | 2024-04-17 | Steamboat Slough | Median Travel Time | 4.977 | 5 | 5 |
| Winter Chinook | 2024-04-17 | Steamboat Slough | Routing Probability | 0.11841 | 0.10359 | 0.13413 |
| Winter Chinook | 2024-04-17 | Steamboat Slough | Survival | 0.50971 | 0.41243 | 0.6027 |
| Winter Chinook | 2024-04-17 | Interior Delta | Median Travel Time | 8.222 | 8 | 9 |
| Winter Chinook | 2024-04-17 | Interior Delta | Routing Probability | 0.11946 | 0.10109 | 0.13807 |
| Winter Chinook | 2024-04-17 | Interior Delta | Survival | 0.27718 | 0.17334 | 0.39443 |
| Late-fall Chinook | 2024-04-17 | Overall | Median Travel Time | 6.7237 | 4.9645 | 9.302 |
| Late-fall Chinook | 2024-04-17 | Overall | Survival | 0.58608 | 0.46782 | 0.67439 |
| Late-fall Chinook | 2024-04-17 | Delta Cross Channel | Median Travel Time | NA | NA | NA |
| Late-fall Chinook | 2024-04-17 | Delta Cross Channel | Routing Probability | 0 | 0 | 0 |
| Late-fall Chinook | 2024-04-17 | Delta Cross Channel | Survival | NA | NA | NA |
| Late-fall Chinook | 2024-04-17 | Georgiana Slough | Median Travel Time | 10.481 | 7.0048 | 15.835 |
| Late-fall Chinook | 2024-04-17 | Georgiana Slough | Routing Probability | 0.198 | 0.1619 | 0.239 |
| Late-fall Chinook | 2024-04-17 | Georgiana Slough | Survival | 0.30093 | 0.14295 | 0.49925 |
| Late-fall Chinook | 2024-04-17 | Sacramento River | Median Travel Time | 5.7118 | 3.9348 | 8.7999 |
| Late-fall Chinook | 2024-04-17 | Sacramento River | Routing Probability | 0.476 | 0.432 | 0.518 |
| Late-fall Chinook | 2024-04-17 | Sacramento River | Survival | 0.67168 | 0.53627 | 0.77118 |
| Late-fall Chinook | 2024-04-17 | Sutter and Steamboat Slough | Median Travel Time | 6.359 | 4.4617000000000004 | 9.5202 |
| Late-fall Chinook | 2024-04-17 | Sutter and Steamboat Slough | Routing Probability | 0.325 | 0.295 | 0.356 |
| Late-fall Chinook | 2024-04-17 | Sutter and Steamboat Slough | Survival | 0.62768 | 0.46487 | 0.7444 |
Single-Year Loss Thresholds
Single-Year Loss Thresholds (PA 4-69)
In each year, typically January/February, Reclamation and DWR propose to avoid exceeding an annual loss threshold equal to 90% of the greatest annual loss that occurred in the historical record 2010-2018 for each of:
- Natural Winter-Run Chinook Salmon (loss= 1.17% of JPE)
- Natural Central Valley Steelhead from December through March (loss =1,414)
- Natural Central Valley Steelhead from April through June 15 (loss = 1,552)
(More information on 4-70)
Summary Loss Table
| WY | Data Item | Winter-run Chinook : 10/1-6/30 | Natural Steelhead : 12/1-3/31 | Natural Steelhead : 4/1-6/15 |
|---|---|---|---|---|
| WY2024 | Loss Total Last 1-7 days (04/11/2024-04/17/2024) | 12.99 | 0 | 325.72 |
| WY2024 | Loss Total Last 8-14 days (04/04/2024-04/10/2024) | 225.95 | 0 | 718.89 |
| WY2024 | Cumulative Loss Total | 4135.8 | 3225.55 | 1273.6 |
Note: Natural Steelhead (12/1-3/31) loss total includes 0.68
loss during period 10/1-11/30.
Natural Winter-Run Chinook Salmon Loss
Natural Central Valley Steelhead
Daily Loss Table
| WY | Date | Winter-run Chinook : 10/1-6/30 : Daily Loss | Winter-run Chinook : 10/1-6/30 : Cum Loss | Natural Steelhead : 12/1-3/31 : Daily Loss | Natural Steelhead : 12/1-3/31 : Cum Loss | Natural Steelhead : 4/1-6/15 : Daily Loss | Natural Steelhead : 4/1-6/15 : Cum Loss |
|---|---|---|---|---|---|---|---|
| WY | Date | Winter-run Chinook : 10/1-6/30 : Daily Loss | Winter-run Chinook : 10/1-6/30 : Cum Loss | Natural Steelhead : 12/1-3/31 : Daily Loss | Natural Steelhead : 12/1-3/31 : Cum Loss | Natural Steelhead : 4/1-6/15 : Daily Loss | Natural Steelhead : 4/1-6/15 : Cum Loss |
| WY2024 | 2024-04-16 | 4.33 | 4135.8 | 44.66 | 1273.6 | ||
| WY2024 | 2024-04-15 | 4.33 | 4131.47 | 86.6 | 1228.94 | ||
| WY2024 | 2024-04-14 | 0 | 4127.14 | 25.48 | 1142.34 | ||
| WY2024 | 2024-04-13 | 0 | 4127.14 | 12.99 | 1116.86 | ||
| WY2024 | 2024-04-12 | 4.33 | 4127.14 | 88.82 | 1103.87 | ||
| WY2024 | 2024-04-11 | 0 | 4122.81 | 67.17 | 1015.05 | ||
| WY2024 | 2024-04-10 | 26.08 | 4122.81 | 76.33 | 947.88 | ||
| WY2024 | 2024-04-09 | 56.4 | 4096.73 | 145.61 | 871.55 | ||
| WY2024 | 2024-04-08 | 0 | 4040.33 | 69.28 | 725.94 | ||
| WY2024 | 2024-04-07 | 21.86 | 4040.33 | 110.97 | 656.66 | ||
| WY2024 | 2024-04-06 | 25.93 | 4018.47 | 165.65 | 545.69 | ||
| WY2024 | 2024-04-05 | 8.56 | 3992.54 | 63.34 | 380.04 | ||
| WY2024 | 2024-04-04 | 87.12 | 3983.98 | 87.71 | 316.7 | ||
| WY2024 | 2024-04-03 | 34.84 | 3896.86 | 46.02 | 228.99 | ||
| WY2024 | 2024-04-02 | 69.37 | 3862.02 | 84.99 | 182.97 | ||
| WY2024 | 2024-04-01 | 112.87 | 3792.65 | 97.98 | 97.98 | ||
| WY2024 | 2024-03-31 | 3.52 | 3679.78 | 47.13 | 3225.55 | ||
| WY2024 | 2024-03-30 | 112.76 | 3676.26 | 80.16 | 3178.42 | ||
| WY2024 | 2024-03-29 | 123.51 | 3563.5 | 69.28 | 3098.26 | ||
| WY2024 | 2024-03-28 | 127.42 | 3439.99 | 72 | 3028.98 | ||
| WY2024 | 2024-03-27 | 210.96 | 3312.57 | 83.99 | 2956.98 | ||
| WY2024 | 2024-03-26 | 98.65 | 3101.61 | 37.97 | 2872.99 | ||
| WY2024 | 2024-03-25 | 40.97 | 3002.96 | 32.53 | 2835.02 | ||
| WY2024 | 2024-03-24 | 35.73 | 2961.99 | 8.66 | 2802.49 | ||
| WY2024 | 2024-03-23 | 43.3 | 2926.26 | 25.48 | 2793.83 | ||
| WY2024 | 2024-03-22 | 50.52 | 2882.96 | 33.03 | 2768.35 | ||
| WY2024 | 2024-03-21 | 90.12 | 2832.44 | 27.09 | 2735.32 | ||
| WY2024 | 2024-03-20 | 115.76 | 2742.32 | 73.11 | 2708.23 | ||
| WY2024 | 2024-03-19 | 42.93 | 2626.56 | 17.32 | 2635.12 | ||
| WY2024 | 2024-03-18 | 11.37 | 2583.63 | 7.05 | 2617.8 | ||
| WY2024 | 2024-03-17 | 61.42 | 2572.26 | 11.38 | 2610.75 | ||
| WY2024 | 2024-03-16 | 169.43 | 2510.84 | 22.76 | 2599.37 | ||
| WY2024 | 2024-03-15 | 33.83 | 2341.41 | 8.66 | 2576.61 | ||
| WY2024 | 2024-03-14 | 48.44 | 2307.58 | 31.17 | 2567.95 | ||
| WY2024 | 2024-03-13 | 3.52 | 2259.14 | 48.74 | 2536.78 | ||
| WY2024 | 2024-03-12 | 0 | 2255.62 | 8.16 | 2488.04 | ||
| WY2024 | 2024-03-11 | 20.18 | 2255.62 | 8.16 | 2479.88 | ||
| WY2024 | 2024-03-10 | 33.68 | 2235.44 | 25.73 | 2471.72 | ||
| WY2024 | 2024-03-09 | 70.01 | 2201.76 | 58.51 | 2445.99 | ||
| WY2024 | 2024-03-08 | 92.39 | 2131.75 | 92.04 | 2387.48 | ||
| WY2024 | 2024-03-07 | 150.37 | 2039.36 | 100.2 | 2295.44 | ||
| WY2024 | 2024-03-06 | 93.03 | 1888.99 | 67.17 | 2195.24 | ||
| WY2024 | 2024-03-05 | 157.84 | 1795.96 | 86.1 | 2128.07 | ||
| WY2024 | 2024-03-04 | 30.64 | 1638.12 | 10.88 | 2041.97 | ||
| WY2024 | 2024-03-03 | 68.45 | 1607.48 | 27.09 | 2031.09 | ||
| WY2024 | 2024-03-02 | 80.28 | 1539.03 | 50.96 | 2004 | ||
| WY2024 | 2024-03-01 | 54.36 | 1458.75 | 89.32 | 1953.04 | ||
| WY2024 | 2024-02-29 | 29.45 | 1404.39 | 104.53 | 1863.72 | ||
| WY2024 | 2024-02-28 | 5.2 | 1374.94 | 5.44 | 1759.19 | ||
| WY2024 | 2024-02-27 | 15.33 | 1369.74 | 54.68 | 1753.75 | ||
| WY2024 | 2024-02-26 | 41.58 | 1354.41 | 42.8 | 1699.07 | ||
| WY2024 | 2024-02-25 | 48.48 | 1312.83 | 100.2 | 1656.27 | ||
| WY2024 | 2024-02-24 | 135.08 | 1264.35 | 146.72 | 1556.07 | ||
| WY2024 | 2024-02-23 | 316.59 | 1129.27 | 242.59 | 1409.35 | ||
| WY2024 | 2024-02-22 | 152.24 | 812.68 | 234.43 | 1166.76 | ||
| WY2024 | 2024-02-21 | 56.16 | 660.44 | 88.32 | 932.33 | ||
| WY2024 | 2024-02-20 | 2.33 | 604.28 | 32.53 | 844.01 | ||
| WY2024 | 2024-02-19 | 0 | 601.95 | 15.21 | 811.48 | ||
| WY2024 | 2024-02-18 | 2.6 | 601.95 | 19.04 | 796.27 | ||
| WY2024 | 2024-02-17 | 7.8 | 599.35 | 33.64 | 777.23 | ||
| WY2024 | 2024-02-16 | 2.6 | 591.55 | 34.14 | 743.59 | ||
| WY2024 | 2024-02-15 | 17.32 | 588.95 | 8.66 | 709.45 | ||
| WY2024 | 2024-02-14 | 4.33 | 571.63 | 37.36 | 700.79 | ||
| WY2024 | 2024-02-13 | 8.88 | 567.3 | 0 | 663.43 | ||
| WY2024 | 2024-02-12 | 2.33 | 558.42 | 21.65 | 663.43 | ||
| WY2024 | 2024-02-11 | 17.27 | 556.09 | 51.96 | 641.78 | ||
| WY2024 | 2024-02-10 | 51.16 | 538.82 | 43.3 | 589.82 | ||
| WY2024 | 2024-02-09 | 45.82 | 487.66 | 54.68 | 546.52 | ||
| WY2024 | 2024-02-08 | 147.74 | 441.84 | 113.94 | 491.84 | ||
| WY2024 | 2024-02-07 | 57.64 | 294.1 | 77.94 | 377.9 | ||
| WY2024 | 2024-02-06 | 43.66 | 236.46 | 14.1 | 299.96 | ||
| WY2024 | 2024-02-05 | 4.33 | 192.8 | 8.66 | 285.86 | ||
| WY2024 | 2024-02-04 | 20.42 | 188.47 | 5.44 | 277.2 | ||
| WY2024 | 2024-02-03 | 0 | 168.05 | 2.72 | 271.76 | ||
| WY2024 | 2024-02-02 | 0 | 168.05 | 0 | 269.04 | ||
| WY2024 | 2024-02-01 | 37.98 | 168.05 | 63.34 | 269.04 | ||
| WY2024 | 2024-01-31 | 12.99 | 130.07 | 17.32 | 205.7 | ||
| WY2024 | 2024-01-30 | 15.8 | 117.08 | 48.74 | 188.38 | ||
| WY2024 | 2024-01-29 | 36.81 | 101.28 | 50.35 | 139.64 | ||
| WY2024 | 2024-01-28 | 9.57 | 64.47 | 4.33 | 89.29 | ||
| WY2024 | 2024-01-27 | 7.52 | 54.9 | 8.16 | 84.96 | ||
| WY2024 | 2024-01-26 | 9.57 | 47.38 | 2.72 | 76.8 | ||
| WY2024 | 2024-01-25 | 3.19 | 37.81 | 8.16 | 74.08 | ||
| WY2024 | 2024-01-24 | 0 | 34.62 | 5.44 | 65.92 | ||
| WY2024 | 2024-01-23 | 0 | 34.62 | 0 | 60.48 | ||
| WY2024 | 2024-01-22 | 4.33 | 34.62 | 0 | 60.48 | ||
| WY2024 | 2024-01-21 | 0 | 30.29 | 2.72 | 60.48 | ||
| WY2024 | 2024-01-20 | 0 | 30.29 | 0 | 57.76 | ||
| WY2024 | 2024-01-19 | 0 | 30.29 | 0 | 57.76 | ||
| WY2024 | 2024-01-18 | 0 | 30.29 | 6.12 | 57.76 | ||
| WY2024 | 2024-01-17 | 0 | 30.29 | 2.72 | 51.64 | ||
| WY2024 | 2024-01-16 | 4.33 | 30.29 | 0 | 48.92 | ||
| WY2024 | 2024-01-15 | 2.88 | 25.96 | 2.72 | 48.92 | ||
| WY2024 | 2024-01-14 | 11.54 | 23.08 | 8.66 | 46.2 | ||
| WY2024 | 2024-01-13 | 0 | 11.54 | 0 | 37.54 | ||
| WY2024 | 2024-01-12 | 0 | 11.54 | 0 | 37.54 | ||
| WY2024 | 2024-01-11 | 8.66 | 11.54 | 25.98 | 37.54 | ||
| WY2024 | 2024-01-10 | 0 | 2.88 | 0 | 11.56 | ||
| WY2024 | 2024-01-09 | 2.88 | 2.88 | 5.44 | 11.56 | ||
| WY2024 | 2024-01-08 | 0 | 0 | 0 | 6.12 | ||
| WY2024 | 2024-01-07 | 0 | 0 | 0 | 6.12 | ||
| WY2024 | 2024-01-06 | 0 | 0 | 0 | 6.12 | ||
| WY2024 | 2024-01-05 | 0 | 0 | 0 | 6.12 | ||
| WY2024 | 2024-01-04 | 0 | 0 | 2.72 | 6.12 | ||
| WY2024 | 2024-01-03 | 0 | 0 | 0 | 3.4 | ||
| WY2024 | 2024-01-02 | 0 | 0 | 0 | 3.4 | ||
| WY2024 | 2024-01-01 | 0 | 0 | 0 | 3.4 | ||
| WY2024 | 2023-12-31 | 0 | 0 | 0 | 3.4 | ||
| WY2024 | 2023-12-30 | 0 | 0 | 2.72 | 3.4 | ||
| WY2024 | 2023-12-29 | 0 | 0 | 0 | 0.68 | ||
| WY2024 | 2023-12-28 | 0 | 0 | 0 | 0.68 | ||
| WY2024 | 2023-12-27 | 0 | 0 | 0 | 0.68 | ||
| WY2024 | 2023-12-26 | 0 | 0 | 0 | 0.68 | ||
| WY2024 | 2023-12-25 | 0 | 0 | 0 | 0.68 | ||
| WY2024 | 2023-12-24 | 0 | 0 | 0 | 0.68 | ||
| WY2024 | 2023-12-23 | 0 | 0 | 0 | 0.68 | ||
| WY2024 | 2023-12-22 | 0 | 0 | 0 | 0.68 | ||
| WY2024 | 2023-12-21 | 0 | 0 | 0 | 0.68 | ||
| WY2024 | 2023-12-20 | 0 | 0 | 0 | 0.68 | ||
| WY2024 | 2023-12-19 | 0 | 0 | 0 | 0.68 | ||
| WY2024 | 2023-12-18 | 0 | 0 | 0 | 0.68 | ||
| WY2024 | 2023-12-17 | 0 | 0 | 0 | 0.68 | ||
| WY2024 | 2023-12-16 | 0 | 0 | 0 | 0.68 | ||
| WY2024 | 2023-12-15 | 0 | 0 | 0 | 0.68 | ||
| WY2024 | 2023-12-14 | 0 | 0 | 0 | 0.68 | ||
| WY2024 | 2023-12-13 | 0 | 0 | 0 | 0.68 | ||
| WY2024 | 2023-12-12 | 0 | 0 | 0 | 0.68 | ||
| WY2024 | 2023-12-11 | 0 | 0 | 0 | 0.68 | ||
| WY2024 | 2023-12-10 | 0 | 0 | 0 | 0.68 | ||
| WY2024 | 2023-12-09 | 0 | 0 | 0 | 0.68 | ||
| WY2024 | 2023-12-08 | 0 | 0 | 0 | 0.68 | ||
| WY2024 | 2023-12-07 | 0 | 0 | 0 | 0.68 | ||
| WY2024 | 2023-12-06 | 0 | 0 | 0 | 0.68 | ||
| WY2024 | 2023-12-05 | 0 | 0 | 0 | 0.68 | ||
| WY2024 | 2023-12-04 | 0 | 0 | 0 | 0.68 | ||
| WY2024 | 2023-12-03 | 0 | 0 | 0 | 0.68 | ||
| WY2024 | 2023-12-02 | 0 | 0 | 0 | 0.68 | ||
| WY2024 | 2023-12-01 | 0 | 0 | 0.68 | 0.68 | ||
| WY2024 | 2023-11-30 | 0 | 0 | ||||
| WY2024 | 2023-11-29 | 0 | 0 | ||||
| WY2024 | 2023-11-28 | 0 | 0 | ||||
| WY2024 | 2023-11-27 | 0 | 0 | ||||
| WY2024 | 2023-11-26 | 0 | 0 | ||||
| WY2024 | 2023-11-25 | 0 | 0 | ||||
| WY2024 | 2023-11-24 | 0 | 0 | ||||
| WY2024 | 2023-11-23 | 0 | 0 | ||||
| WY2024 | 2023-11-22 | 0 | 0 | ||||
| WY2024 | 2023-11-21 | 0 | 0 | ||||
| WY2024 | 2023-11-20 | 0 | 0 | ||||
| WY2024 | 2023-11-19 | 0 | 0 | ||||
| WY2024 | 2023-11-18 | 0 | 0 | ||||
| WY2024 | 2023-11-17 | 0 | 0 | ||||
| WY2024 | 2023-11-16 | 0 | 0 | ||||
| WY2024 | 2023-11-15 | 0 | 0 | ||||
| WY2024 | 2023-11-14 | 0 | 0 | ||||
| WY2024 | 2023-11-13 | 0 | 0 | ||||
| WY2024 | 2023-11-12 | 0 | 0 | ||||
| WY2024 | 2023-11-11 | 0 | 0 | ||||
| WY2024 | 2023-11-10 | 0 | 0 | ||||
| WY2024 | 2023-11-09 | 0 | 0 | ||||
| WY2024 | 2023-11-08 | 0 | 0 | ||||
| WY2024 | 2023-11-07 | 0 | 0 | ||||
| WY2024 | 2023-11-06 | 0 | 0 | ||||
| WY2024 | 2023-11-05 | 0 | 0 | ||||
| WY2024 | 2023-11-04 | 0 | 0 | ||||
| WY2024 | 2023-11-03 | 0 | 0 | ||||
| WY2024 | 2023-11-02 | 0 | 0 | ||||
| WY2024 | 2023-11-01 | 0 | 0 | ||||
| WY2024 | 2023-10-31 | 0 | 0 | ||||
| WY2024 | 2023-10-30 | 0 | 0 | ||||
| WY2024 | 2023-10-29 | 0 | 0 | ||||
| WY2024 | 2023-10-28 | 0 | 0 | ||||
| WY2024 | 2023-10-27 | 0 | 0 | ||||
| WY2024 | 2023-10-26 | 0 | 0 | ||||
| WY2024 | 2023-10-25 | 0 | 0 | ||||
| WY2024 | 2023-10-24 | 0 | 0 | ||||
| WY2024 | 2023-10-23 | 0 | 0 | ||||
| WY2024 | 2023-10-22 | 0 | 0 | ||||
| WY2024 | 2023-10-21 | 0 | 0 | ||||
| WY2024 | 2023-10-20 | 0 | 0 | ||||
| WY2024 | 2023-10-19 | 0 | 0 | ||||
| WY2024 | 2023-10-18 | 0 | 0 | ||||
| WY2024 | 2023-10-17 | 0 | 0 | ||||
| WY2024 | 2023-10-16 | 0 | 0 | ||||
| WY2024 | 2023-10-15 | 0 | 0 | ||||
| WY2024 | 2023-10-14 | 0 | 0 | ||||
| WY2024 | 2023-10-13 | 0 | 0 | ||||
| WY2024 | 2023-10-12 | 0 | 0 | ||||
| WY2024 | 2023-10-11 | 0 | 0 | ||||
| WY2024 | 2023-10-10 | 0 | 0 | ||||
| WY2024 | 2023-10-09 | 0 | 0 | ||||
| WY2024 | 2023-10-08 | 0 | 0 | ||||
| WY2024 | 2023-10-07 | 0 | 0 | ||||
| WY2024 | 2023-10-06 | 0 | 0 | ||||
| WY2024 | 2023-10-05 | 0 | 0 | ||||
| WY2024 | 2023-10-04 | 0 | 0 | ||||
| WY2024 | 2023-10-03 | 0 | 0 | ||||
| WY2024 | 2023-10-02 | 0 | 0 | ||||
| WY2024 | 2023-10-01 | 0 | 0 |
Note: Natural Steelhead (12/1-3/31) loss total includes 0.68
loss during period 10/1-11/30.
Data Set Notes:
- 2019 Biological Opinions, USBR includes link to "Chapter 4 Proposed Action" PDF
- Water condtions data courtesy of CDEC.
- Knights Landing RST and Tisdale RST data courtesy of CDFW via StreamNet.
- The Knights Landing RST: uses Frank Fisher length-at-date model to categorize Chinook into "older" and "fry/smolt".
- Sacramento Trawls, Sacramento Beach Seines, Chipps Island Trawls, and Mossdale Trawls sampling data courtesy of USFWS Lodi weekly.
- Sacramento Beach Seines: Verona, Elkhorn, Sand Cove, Miller Park, Sherwood Harbor, Discovery Park, American River, Garcia Bend.
- 30 November 2020: Sampling at Mossdale Trawls stopped; sampling at the sites deemed "non-essential" during COVID-19 response.
- Salvage data courtesy of Fish Salvage Monitoring, CDFW Bay Delta Region
- Salvage Database, ftp://ftp.dfg.ca.gov/salvage/
- We use loss estimation methods as detailed in "Chinook Salmon Loss Estimation for Skinner Delta Fish Protective Facility and Tracy Fish Collection Facility, 7/9/2018" ftp://ftp.wildlife.ca.gov/salvage/Salmon%20loss%20estimation.docx
- Citation
- Columbia Basin Research, University of Washington. (2020). SacPAS Salmon Monitoring Team. Available from www.cbr.washington.edu/sacramento/workgroups/salmon_monitoring.html
SacPAS: Central Valley Prediction & Assessment of Salmon, University of Washington, Columbia Basin Research, www.cbr.washington.edu/sacramento/
Friday, 02-Feb-2024 10:02:24 PST