Big San Joaquin River flows are good news for pumping water for South of Delta users.

Transcription

1 Big San Joaquin River flows are good news for pumping water for South of Delta users. The small town of Vernalis on the San Joaquin River at the south end of the delta and just west of Modesto is where the flows into the southern delta are measured. The big flows are good for folks who want to see water pumped into the Delta-Mendota Canal and the California Aqueduct at the export pumps. Ideally, we hope the pumps stay above 21,750 cubic feet per second so there will be no pumping restrictions. Currently, the CVP pumping is only limited by the usage south of the Delta. Unfortunately, the State Water Project pumps at the Banks Pumping plant are down completely due to a structure maintenance problem at the gates from the delta into the Clifton Court Forebay. That forebay supplies Banks Pumping plant. That Banks is down is significant because it would be pumping Article 21 flood water for SWP districts. (559) /28/2017 Page 1

2 Oroville Storage As of March 26th, storage was approximately 2,650,959AF (down 210,726AF and at 75% capacity down 6% in capacity from last week). The current level is 100% of the historical average. Inflows for the past week averaged 57,560AF/day. Total capacity of Oroville is 3,538,000AF. Current releases into the Feather River as of Sunday have gone to 83,323AF/day. Inflows Outflows (559) /28/2017 Page 2

3 (559) /28/2017 Page 3

4 San Luis Storage As of March 26th, San Luis total (CVP + SWP) storage is at 2,010,833 AF and is at 99.16% of allotted storage capacity (down 14,335 AF from last week and unchanged in percentage of capacity). The CVP share is 961,878 AF and decreased by 1,761 AF in the same time frame. For current San Luis Reservoir Storage Shares, go to (559) /28/2017 Page 4

5 Federal Storage within San Luis Reservoir As of March 26th, federal storage was at 961,878AF (99.61% full down 1,761AF from last week). Total federal storage capacity is 965,655AF.federal share of the reservoir is approximately 67% of the 15-year average of 479,000AF. State Storage within San Luis Reservoir As of March 26th, state storage was at 1,048,955AF (now at 98.75% capacity down 12,574AF from last week). The total state storage capacity in SLR is 1,062,180AF. Total State and Federal storage reported is 2,010,833AF. The reservoir is at 99% of capacity. 3A30&geom=huge&interval=5557&cookies=cdec01 (559) /28/2017 Page 5

6 Northern Sierra Precipitation As of March 27th, the 8-station Northern California index has recorded 82.9 inches of precipitation for this water year (up 3.7 inches from last week). This represents 204% of the typical average rainfall to date (165.8% of total for season). The average total for the normal season is 50.0 inches. (559) /28/2017 Page 6

7 San Joaquin Precipitation As of March 27th, the 5-station San Joaquin index has recorded 64.6 inches of precipitation for this water year (up 2.7 inches from last week). This represents 197% of the typical average rainfall to date (158.3% of total for season). The average total for the normal season is 40.8 inches. (559) /28/2017 Page 7

8 Tulare Lake Basin Precipitation As of March 27th, the 6-station Tulare Basin index has recorded 43.0 inches of precipitation for this water year (up 1.2 inches from last week). This represents 182% of the typical average rainfall to date (146.8% of total for season). The average total for the normal season is 29.3 inches. (559) /28/2017 Page 8

9 Not Much Precipitation for California This Week (559) /28/2017 Page 9

10 Feather River Basin 10-Day Forecast The Wat er Agency, Inc. (559) /28/2017 Page 10

11 Compared to Last Week s Summaries 29 stations Up 1.7 Up 6% Up 5% 42 stations Up 1.8 Up 8% Up 5% 26 stations Up 1.1 Up 3% Up 1% 97 stations Up 1.5 Up 6% Up 4% (559) /28/2017 Page 11

12 6-10 day Precipitation Forecast: 6-10 day Temperature Forecast: (559) /28/2017 Page 12

13 8-14 day Precipitation Forecast: 8-14 day Temperature Forecast: (559) /28/2017 Page 13

14 April Precipitation Forecast: April Temperature Forecast: (559) /28/2017 Page 14

15 April June Precipitation Forecast: April June Temperature Forecast: (559) /28/2017 Page 15

16 Long Range Forecast The Climate Prediction Center/NCEP issued its new Update on March 27, 2017: ENSO Alert System Status: Not Active ENSO-neutral conditions are present.* Equatorial sea surface temperatures (SSTs) are near-average across the central and east-central Pacific. They are above-average in the eastern Pacific Ocean. ENSO-neutral conditions are favored to continue through at least the Northern Hemisphere spring 2017, with increasing chances for El Niño development into the fall.* * Note: These statements (and the following charts) are updated at least once a month (2nd Thursday of each month) in association with the ENSO Diagnostics Discussion: analysis_monitoring/enso_advisory pages 7 and 25 (559) /28/2017 Page 16

17 Reservoir Storage As of March 26th, Northern California reservoirs are between % of historical average and 62-87% of capacity-- Folsom is up 14%, Shasta is up 8%, Trinity is up 4%, and Oroville is down 6% in capacity from last week. The central ones are between % of historical average and 40-99% of capacity. San Luis is unchanged in capacity. (559) /28/2017 Page 17

18 (559) /28/2017 Page 18

19 Shasta Storage As of March 26th, storage was approximately 3,905,454AF (up 347,396AF and at 86% of capacity up 8% in capacity from last week). The current level is 108% of the historical average. Total capacity of Shasta is about 4,552,000AF. Shasta s weekly average inflows are about 61,691AF/day, and outflows are about 13,589AF/day as of Sunday. Inflows Reservoir graphs from: Outflows (559) /28/2017 Page 19

20 Trinity Lake Storage As of March 26th, storage was approximately 2,134,501AF with capacity being at 87% (up 102,719AF and up 4% in capacity from last week). The current level is 112% of the historical average. Net inflows for the past week averaged 17,959AF/ day. Total capacity of the Trinity is about 2,448,000AF. On Sunday, releases to the Trinity River were about 3,068AF/ day. Inflows Outflows (559) /28/2017 Page 20

21 Folsom Storage As of March 26th, storage was approximately 602,372AF (up 131,797AF and at 62% capacity capacity up 14% from last week). The current level is 98% of the historical average. Inflows for the past week averaged 30,138AF/day. Total capacity of Folsom is 977,000AF. As of Sunday, releases were about 11,217AF/ day. Inflows Outflows (559) /28/2017 Page 21

22 Friant Storage As of March 26th, storage was about 206,675AF (down 32,406AF and at 40% capacity down 6% in capacity from last week). The current level is 57% of the historical average. Inflows for the last week averaged about 14,318AF/day. Total capacity of Friant is 520,500AF. On Sunday, 1,415CFS was released into the Friant/Kern Canal, 842CFS was released into the Madera Canal, and 5,324CFS was released into the San Joaquin River. The eight upstream San Joaquin River reservoirs are about 50% full, holding 304,977AF of their 611,688AF capacity. Inflows Outflows (559) /28/2017 Page 22

23 New Melones Storage As of March 26th, storage was approximately 1,780,877AF (up 69,629AF and at 74% capacity up 3% in capacity from last week). The current level is 118% of the historical average. Inflows for the past week averaged 11,791AF/day. Total capacity of New Melones is 2,400,000AF. Current releases to the Stanislaus River have been adjusted to 3,080AF/day. Inflows Outflows (559) /28/2017 Page 23

24 Pumping Has Slowed Total Delta Inflow from the Delta Outflow Computation chart ( doutdly.pdf) for March 26th is listed as 142,015 cfs (281,687 AF/day) and outflow is 144,835 cfs (287,280 AF/ day) with delta exports being 3,846 cfs (7,629 AF/day). (559) /28/2017 Page 24

25 Plenty of water has been flowing through the delta. In the last thirty-seven months, over 64.1 million acre-feet of water have poured into the delta. Of that water, 80.9 percent, or almost 52 million acre-feet, has gone out to the ocean, but just over 9.3 million acre-feet have been pumped into the California Aqueduct and Delta Mendota Canal for cities and farms. Since October 1, 2016, the losses are worse with percent wasted to the ocean. (559) /28/2017 Page 25

26 Delta Flows from October 1, 2016, through March 26, 2017 In just over five months, 34,512,600AF of water flowed into the Delta. The Net In-Delta Consumption was (595,000AF) (-1.7%). The Banks and Jones Pumps captured 2,961,400AF (8.6%), and 32,091,700AF (92.99%) flowed out to the ocean. (559) /28/2017 Page 26

27 2017 Allocations SWP: The 2017 SWP allocation is set at 20% as of November 28, As of December 21, 2016, the 2017 SWP allocation is set at 45%. As of January 18, 2017, the 2017 SWP allocation is set at 60%. CVP: As of March 22, 2017, the South-of-the-Delta CVP Allocation is set at 65%. As of February 28, 2017, USBR announces Friant Class 1 allocation is set at 100% Allocations SWP: The 2016 SWP allocation is set at 15% as of January 26, As of February 24, 2016, the 2016 SWP allocation is set at 30%. As of March 17, 2016, the 2016 SWP allocation is set at 45%. As of April 21, 2016, the 2016 SWP allocation is set at 60% CVP: As of April 1, 2016, USBR announces South-of-the-Delta Ag CVP Allocation is set at 5%, and Friant Class 1 allocation is set at 30%. As of Friday, April 8, 2016, the Friant Class 1 allocation was increased to 40%. As of Thursday, April 21, 2016, the Friant Class 1 allocation was increased to 50%. As of Friday, May 6, 2016, the Friant Class 1 allocation was increased to 65%. As of Monday, July 18, 2016, the Friant Class 1 allocation was increased to 75% along with an exchange agreement to support South-of-Delta operations. Note! The January 9, 2017 verbal notification that was made that Friant Class 1 allocation will be 100% was for old year supplies. Per USBR/Contractors Conference Call (559) /28/2017 Page 27

28 Disclaimer: The information contained herein is compiled from a number of sources. Some of what we report is gleaned from news articles or meetings we attend. While we strive for this information to be accurate, it may be in error, and much of the information and data contained herein is provisional and subject to future revisions. If you plan on using this information to make business decisions about your water assets or needs, we strongly suggest that you do your own independent verification of the accuracy of this information. The Wat er Agency, Inc. provides no guarantee as to the accuracy or completeness of the information. Neither The Wat er Agenc y, Inc., nor any of the sources of the information contained herein are responsible for any errors or omissions, or for the use or results obtained from the use of this information. Please feel free to send us information or opinions, which are contrary to what we write, so we can try to integrate them into future updates. Erick H. Johnson ErickHJ@WaterAgency.com The Wate r Agenc y, Inc. Phone: (559) Fax: (559) Alluvial Avenue, Clovis, CA (Northwest corner of Temperance & Alluvial) (559) /28/2017 Page 28