2/4/2025

10-Day General Northern California Precipitation Forecast:

The weather forecast for the next ten days

From CDEC: Precipitation to date for water year 2024-2025 - as of 2/4/2025:

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

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

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

From CDEC: Average Statewide Snow Water Content Equivalents as of 2/4/2025:

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 2/4/2025 daily average flow was cfs and the average flow is expected to remain relatively unchanged at cfs through 2/9/2025.

Feather River (at Boyd's Landing)

As of 2/4/2025, the Feather River flow is cfs and is expected to remain relatively unchanged at cfs by 2/9/2025.

San Joaquin River (near Vernalis)

As of 2/4/2025, the San Joaquin River flow is cfs and is expected to remain relatively unchanged at cfs by 2/9/2025.

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

Posted: 11/21/2024

Delta Cross Channel gates are closed and will remain closed until further notice.

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 = 302.7725 uS/cm, Br = 0.1671 mg/L. 10 days ago: EC = 358.7945 uS/cm, Br = 0.2442 mg/L.

Jones: EC = 414 uS/cm, Br = N/A mg/L. 10 days ago: EC = 396 uS/cm, Br = N/A mg/L.

Clifton Court Forebay: EC = 465.3 uS/cm, Br = N/A mg/L. 10 days ago: EC = 475.8 uS/cm, Br = N/A mg/L.

Vernalis: EC = 721 uS/cm, Br = N/A mg/L. 10 days ago: EC = 754 uS/cm, Br = N/A mg/L.

Gianelli: EC = N/A uS/cm, Br = 0.308 mg/L. 10 days ago: EC = N/A uS/cm, Br = 0.3673 mg/L.

Organic Carbon, TOC and DOC:

Banks: TOC = 4.44 mg/L, DOC = 4.33 mg/L. 10 days ago: TOC = 4.95 mg/L, DOC = 4.86 mg/L.

Jones: TOC = 4.89 mg/L, DOC = 4.42 mg/L. 10 days ago: TOC = 5.03 mg/L, DOC = 5.03 mg/L.

Vernalis: TOC = N/A mg/L, DOC = N/A mg/L. 10 days ago: TOC = N/A mg/L, DOC = N/A mg/L.

Gianelli: TOC = 4.36 mg/L, DOC = 4.42 mg/L. 10 days ago: TOC = 5.36 mg/L, DOC = 5.34 mg/L.

Daily Average Pumping: 1/25 through 2/3

Banks Pumping Plant ... ranged between 1,522 cfs and 3,327 cfs over the time period. The 2/3 average was 2,717 cfs.

Jones Pumping Plant ... ranged between 2,558 cfs and 4,238 cfs over the time period. The 2/3 average was 4,238 cfs.

Gianelli Pumping Plant ... discharge generation (San Luis Reservoir water moving out of the reservoir into O'Neill Forebay) ranged between zero cfs and zero cfs over the time period. The 2/3 average was zero cfs.
Discharge pumping (O'Neill Forebay water moving into San Luis Reservoir) ranged between 1,905 cfs and 3,717 cfs over the time period. The 2/3 average was 3,636 cfs.

O'Neill Pumping Plant (Federal CVP) ... discharge generation (O'Neill Forebay water moving into the DMC) varied between zero cfs and 57 cfs over the time period. The 2/3 average was zero cfs.
Discharge pumping (DMC water moving into O'Neill Forebay) ranged between 1,973 cfs and 3,094 cfs over the time period. The 2/3 average was 3,094 cfs.

Dos Amigos Pumping Plant ... ranged between 1,022 cfs and 2,837 cfs over the time period. The 2/3 average was 2,562 cfs.

South Bay Pumping Plant ... ranged between 53 cfs and 140 cfs over the time period. The 2/3 average was 140 cfs.

Barker Slough Pumping Plant ... ranged between 24 cfs and 36 cfs over the time period. The 2/3 average was 31 cfs.

Status of the Temporary Barriers as of 2/4/2025

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.