11/20/2023
10-Day General Northern California Precipitation Forecast:
As of Monday, the forecast for the next 10 days is mostly cloudy to sunny with temperatures ranging from lows of 60F to highs of 71F. There is no rain in the forecast around Sacramento until 12/8.
From CDEC: Precipitation to date for water year 2023-2024 - As of 11/20/2023:
Northern
Sierra Precipitation: 8-Station Index: 3.9"
= 61% of average for this date
San
Joaquin Precipitation: 5-Station Index: 2.0" = 45%
of average for this date
Tulare
Basin Precipitation: 6-Station Index: 1.2" = 39% of average for this
date
From CDEC: Average Statewide Snow Water Content Equivalents as of 7/31/2023:
North:
0.0" = 0%
of normal for this date
Central:
0.0" =
0% of normal for this date
South:
0.0"
= 0% of normal for this date
Statewide: 0.0" = 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 11/19/2023 daily average flow was 9,168 cfs and the average flow is
expected to remain about the same going into the morning of 11/25/23.
Feather River (at Boyd's Landing)
As of 11/20/2023, Feather River flow is 2,128 cfs and is expected to remain about the same going into the morning of 11/25/23.
San Joaquin River (near Vernalis)
As of 11/20/2023, San Joaquin River flow is 1,469 cfs
and expected to decrease to 1,344 cfs by the morning
of 11/25/23.
Latest Delta Cross Channel Gate Operation (From the USBR website)
Posted: 11/14/2023
Gates are currently closed and will open on Friday, November 17, 2023 at approximately 10:00 hrs.
Gates will close on Monday, November 20, 2023 at approximately 10:00 hrs. Gates will open on Wednesday, November 22, 2023 at approximately 10:00 hrs.
Comment: Rio Vista requirement
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: Gianelli and Jones stations anion analyzers currently not reporting bromide.
Banks: EC = 371 uS/cm, Br = 0.13 mg/L. 10 days ago: EC = 308 uS/cm, Br = 0.11 mg/L
Jones Daily Ave.: EC = 515 uS/cm, Br = N/R mg/L. 10 days ago: = 448 uS/cm, Br = N/R mg/L
Clifton Court Forebay Daily Average: EC = 495 uS/cm. 10 days ago: EC = 327 uS/cm
Vernalis: EC = 623 uS/cm, Br = 0.22 mg/L. 10 days ago: 599 uS/cm and Br = 0.23 mg/L
Gianelli, average: EC = 453 uS/cm, Br = N/R. 10 days ago: 452 uS/cm and Br = N/R
Organic Carbon, TOC and DOC: As of 11/20/2023, Jones and Gianelli are not reporting the TOC/DOC correctly, possibly due to the factory update during the annual calibration.
Banks: TOC = 2.73 mg/L, DOC = 2.56 mg/L. 10 days ago: 2.82 mg/L, 2.52 mg/L
Jones (average): TOC = 3.47 mg/L, DOC = N/R mg/L. 10 days ago: N/R mg/L, N/R mg/L
Vernalis: TOC = 3.70 mg/L, DOC = 3.43 mg/L. 10 days ago: 3.12 mg/L, 2.99 mg/L
Gianelli, average: TOC = 4.34 mg/L, DOC = 4.22 mg/L. 10 days ago: 4.42 mg/L, 4.35 mg/L
Daily Average Pumping: 11/17 through 11/26
Banks Pumping Plant ... ranged between 1,389 cfs and 3,566 cfs over the time period. The 11/26 average was 2,605 cfs.
Jones Pumping Plant ... ranged between 1,822 cfs and 1,889 cfs over the time period. The 11/26 average was 1,829 cfs.
Gianelli Pumping Plant ... discharge generation (San Luis Reservoir water moving out of the reservoir into O'Neill Forebay) ranged between 1,760 cfs and 5,317 cfs over the time period. The 11/26 average was 2,321 cfs. Discharge pumping (O'Neill Forebay water moving into San Luis Reservoir) ranged between zero cfs and zero cfs over the time period. The 11/26 average was zero 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 11/26 average was zero cfs. Discharge pumping (DMC water moving into O'Neill Forebay) ranged between 746 cfs and 949 cfs over the time period. The 11/26 average was 778 cfs.
Dos Amigos Pumping Plant ... ranged between 5,154 cfs and 7,173 cfs over the time period. The 11/26 average was 5,154 cfs.
South Bay Pumping Plant ... ranged between 159 cfs and 235 cfs over the time period. The 11/26 average was 171 cfs.
Barker Slough Pumping Plant ... ranged between 62 cfs and 82 cfs over the time period. The 11/26 average was 67 cfs.
The removal of the
South Delta Temporary Barriers began on October 30, 2023. All in-water work
will be completed by November 30, 2023.
Mobilization and
in-water work started on July 24, 2023 at 9:00 am. The
weir was closed on July 26, 2023 at 4:15 pm and all 6
flap gates were untied and all 6 culverts set to tidal operation on July 27,
2023 at 1:30 pm. Construction was completed on July 27, 2023 at 3:30 pm. The
barrier notch was completed on Friday September 15, 2023
at 9:15 am. In-water work for barrier removal began on November 14, 2023 at 10:30 am. The barrier was breached on November 14, 2023 at 1:00 pm.
Mobilization and in-water work for the
Old River near Tracy Barrier started on July 31, 2023. The weir was closed on
August 17, 2023 at 7:30 am and all 9 culverts were set
to tidal operation at 7:45 am. Construction was completed on August 18, 2023.
Boat portage is available daily from 8 am to 6 pm Monday to Friday and from 7
am to 7 pm on weekends. The barrier notch was completed on Friday
September 15, 2023 at 11:15 am. In-water work for
barrier removal began on October 30, 2023 at 3:00 pm.
The barrier was breached on October 31, 2023 at 9:30
am. All in-water work was completed on November 13, 2023
at 4:15 pm.