11/18/2025

10-Day General Northern California Precipitation Forecast:

The weather forecast for the next ten days is mostly cloudy with intermittent rainfall occuring Thursday. Highs will be in the lower 60's to upper 50's.

From CDEC: Precipitation to date for water year 2024-2025 - as of 11/10/2025:

Northern Sierra Precipitation: 8-Station Index: 9.4" = 161% of average for this date

San Joaquin Precipitation: 5-Station Index: 8.0" = 194% of average for this date

Tulare Basin Precipitation: 6-Station Index: 5.3" = 197% of average for this date

From CDEC: Average Statewide Snow Water Content Equivalents as of 11/18/2025:

North: 0" = 0% of normal for this date

Central: 0" = 0% of normal for this date

South: 0" = 0% of normal for this date

Statewide: 0" = 0% of normal for this date

River Flows (Current and estimated future flow rates from NOAA's California Nevada River Forecast Center and CDEC)

Sacramento River (I Street Bridge/ Freeport Bridge)

The 11/18/2025 daily average flow was cfs and the average flow is expected to remain relatively unchanged at cfs through 11/23/2025.

Feather River (at Boyd's Landing)

As of 11/18/2025, the Feather River flow is cfs and is expected to remain relatively unchanged at cfs by 11/23/2025.

San Joaquin River (near Vernalis)

As of 11/18/2025, the San Joaquin River flow is cfs and is expected to remain relatively unchanged at cfs by 11/23/2025.

Latest Delta Cross Channel Gate Operation (From the USBR website)

Posted: 10/29/2025 Delta Cross Channel gates will close on Thursday, October 30, 2025 at approximately 10:00 hrs.

Comment: Facility maintenance and gate testing, please use caution

Note 1: Gates may be operated/closed on short notice for fishery protection in the November to January timeframe.

Note 2: Gate operations may take approx 30 minutes to complete, so boats may not be permitted to pass through the gates until approx 30 minutes after the scheduled opening time. Boat passage may be cut off approximately 30 minutes prior to the scheduled closing time.

EC and Bromide:

Banks: EC = 356.2344 uS/cm, Br = 0.2091 mg/L. 10 days ago: EC = 470.1839 uS/cm, Br = 0.2311 mg/L.

Jones: EC = 605 uS/cm, Br = 0.1516 mg/L. 10 days ago: EC = 415 uS/cm, Br = 0.2178 mg/L.

Clifton Court Forebay: EC = 323.6 uS/cm, Br = N/A mg/L. 10 days ago: EC = 421.9 uS/cm, Br = N/A mg/L.

Vernalis: EC = 463 uS/cm, Br = 0.2278 mg/L. 10 days ago: EC = 664 uS/cm, Br = N/A mg/L.

Gianelli: EC = N/A uS/cm, Br = 0.2444 mg/L. 10 days ago: EC = N/A uS/cm, Br = 0.1867 mg/L.

Organic Carbon, TOC and DOC:

Banks: TOC = 2.58 mg/L, DOC = 2.33 mg/L. 10 days ago: TOC = 2.67 mg/L, DOC = 2.49 mg/L.

Jones: TOC = 2.75 mg/L, DOC = 2.56 mg/L. 10 days ago: TOC = 2.65 mg/L, DOC = 3.2 mg/L.

Vernalis: TOC = 6.21 mg/L, DOC = 5.89 mg/L. 10 days ago: TOC = 3.25 mg/L, DOC = 3.11 mg/L.

Gianelli: TOC = 2.71 mg/L, DOC = 2.59 mg/L. 10 days ago: TOC = 2.92 mg/L, DOC = 2.85 mg/L.

Daily Average Pumping: 11/8 through 11/17

Banks Pumping Plant ... ranged between zero cfs and 4,381 cfs over the time period. The 11/17 average was 3,579 cfs.

Jones Pumping Plant ... ranged between 3,520 cfs and 4,219 cfs over the time period. The 11/17 average was 3,520 cfs.

Gianelli Pumping Plant ... discharge generation (San Luis Reservoir water moving out of the reservoir into O'Neill Forebay) ranged between zero cfs and 2,337 cfs over the time period. The 11/17 average was zero cfs.
Discharge pumping (O'Neill Forebay water moving into San Luis Reservoir) ranged between 1,360 cfs and 9,186 cfs over the time period. The 11/17 average was 5,646 cfs.

O'Neill Pumping Plant (Federal CVP) ... discharge generation (O'Neill Forebay water moving into the DMC) varied between zero cfs and zero cfs over the time period. The 11/17 average was zero cfs.
Discharge pumping (DMC water moving into O'Neill Forebay) ranged between 2,270 cfs and 3,466 cfs over the time period. The 11/17 average was 3,165 cfs.

Dos Amigos Pumping Plant ... ranged between 391 cfs and 4,724 cfs over the time period. The 11/17 average was 1,136 cfs.

South Bay Pumping Plant ... ranged between 5 cfs and 78 cfs over the time period. The 11/17 average was 21 cfs.

Barker Slough Pumping Plant ... ranged between 52 cfs and 75 cfs over the time period. The 11/17 average was 52 cfs.

Status of the Temporary Barriers as of 11/18/2025

Middle River Barrier

Mobilization started on April 29 at 3:00pm. In-water work started on May 1 at 9:00am. Turbidity curtains were installed and flap gates were tied open on May 1 at 9:00am. The weir was closed on May 9 at 1:00pm and all 6 flap gates remain tied open. All in-water work was completed on May 10 at 11:30am. All 6 flap gates were released to tidal operation on June 10.

Old River near Tracy Barrier

Mobilization started on May 1. In-water work started on May 3. The weir was fully closed on May 31 at 12:00pm and all 9 flap gates remain tied open. Construction was completed by June 5. All 9 flap gates were released to tidal operation on June 10. Boat portage is available daily from 8am to 6pm Monday to Friday and from 7am to 7pm on weekends.