The daily storage values displayed here are obtained from the California Department of Water Resources (DWR) and then converted into approximate lake elevations and lake surface areas based on elevation and area curves.

Date

Storage

Lake Elevation

Lake Elevation Change

Lake Surface Area

Surface Area Change

acre feet

feet

feet

acres

acres

01/01/11

 863,368 4483.17 -0.04 24,390 -11
01/02/11    863,393 4483.17 0.00 24,390 0
01/03/11    861,175 4483.08 -0.09 24,365 -25
01/04/11    858,983 4482.99 -0.09 24,341 -24
01/05/11    856,793 4482.90 -0.09 24,319 -22
01/06/11    854,363 4482.80 -0.10 24,294 -25
01/07/11    851,935 4482.70 -0.10 24,269 -25
01/08/11    849,509 4482.60 -0.10 24,244 -25
01/09/11    847,328 4482.51 -0.09 24,221 -23
01/10/11    844,423 4482.39 -0.12 24,191 -30
01/11/11    843,456 4482.35 -0.04 24,182 -9
01/12/11    841,281 4482.26 -0.09 24,159 -23
01/13/11    839,590 4482.19 -0.07 24,141 -18
01/14/11    837,659 4482.11 -0.08 24,121 -20
01/15/11    835,249 4482.01 -0.10 24,097 -24
01/16/11    833,322 4481.93 -0.08 24,077 -20
01/17/11    831,637 4481.86 -0.07 24,060 -17
01/18/11    830,194 4481.80 -0.06 24,046 -14
01/19/11    828,512 4481.73 -0.07 24,029 -17
01/20/11    827,551 4481.69 -0.04 24,019 -10
01/21/11    826,110 4481.63 -0.06 24,004 -15
01/22/11    825,150 4481.59 -0.04 23,994 -10
01/23/11   824,190 4481.55 -0.04 23,984 -10
01/24/11   822,751 4481.49 -0.06  23,970 -14
01/25/11   822,272 4481.47 -0.02 23,965 -5
01/26/11   820,116 4481.38 -0.09 23,943 -22
01/27/11   817,724 4481.28 -0.10  23,919 -24
01/28/11   815,572 4481.19 -0.09 23,897 -22
01/29/11   817,724 4481.28 0.09 23,919 22
01/30/11   812,706 4481.07 -0.21 23,867 -52
01/31/11   810,559 4480.98 -0.09  23,845 -22
02/01/11   807,937 4480.87 -0.11  23,820 -25
02/02/11   805,795 4480.78 -0.09 23,798 -22
02/03/11   803,654 4480.69 -0.09 23,778 -20
02/04/11   801,990 4480.62 -0.07 23,761 -17
02/05/11   802,703 4480.65 0.03 23,768 7
02/06/11   801,990 4480.62 -0.03 23,761 -7
02/07/11   803,179 4480.67 0.05 23,773 12
02/08/11   804,130 4480.71 0.04 23,782 9
02/09/11   804,843 4480.74 0.03 23,789 7
02/10/11   806,033 4480.79 0.05 23,801 12
02/11/11   806,985 4480.83 0.04 23,810 9
02/12/11   807,937 4480.87 0.04 23,820 10
02/13/11   808,890 4480.91 0.04 23,829 9
02/14/11   811,036 4481.00 0.09 23,850 21
02/15/11   816,767 4481.24 0.24 23,909 59
02/16/11   820,356 4481.39 0.15 23,946 37
02/17/11   823,950 4481.54 0.15 23,982 36
02/18/11   826,110 4481.63 0.09 24,004 22
02/19/11   827,551 4481.69 0.06 24,019 15
02/20/11   828,752 4481.74 0.05 24,031  12
02/21/11   829,954 4481.79 0.05 24,044 13
02/22/11   831,156 4481.84 0.05 24,056 12
02/23/11   831,878 4481.87 0.03 24,063 7
02/24/11   833,804 4481.95 0.08 24,082 19
02/25/11   836,695 4482.07 0.12 24,112 30
02/26/11   837,659 4482.11 0.04 24,121 9
02/27/11   838,866 4482.16 0.05 24,134 13
02/28/11   839,590 4482.19 0.03 24,141 7
03/01/11   840,556 4482.23 0.04 24,151 10
03/02/11   842,730 4482.32 0.09 24,174 23
03/03/11   843,697 4482.36 0.04 24,184 10
03/04/11   844,907 4482.41 0.05 24,196 12
03/05/11   846,359 4482.47 0.06 24,211 15
03/06/11   848,782 4482.57 0.10 24,236 25
03/07/11   850,479 4482.64 0.07 24,254 18
03/08/11   851,935 4482.70 0.06 24,269 15
03/09/11   853,634 4482.77 0.07 24,286 17
03/10/11   856,550 4482.89 0.12 24,317 31
03/11/11   858,496 4482.97 0.08 24,336 19
03/12/11   860,444 4483.05 0.08 24,357 21
03/13/11   863,368 4483.17 0.12 24,390 33
03/14/11  866,788 est 4483.31 0.14 24,428 38
03/15/11  870,208 4483.45 0.14 24,466 38
03/16/11   874,861 4483.64 0.19 24,518 52
03/17/11   877,806 4483.76 0.12 24,551 33
03/18/11   883,952 4484.01 0.25 24,619 68
03/19/11   888,141 4484.18 0.17 24,666 47
03/20/11   892,091 4484.34 0.16 24,711 45
03/21/11   894,316 4484.43 0.09 24,735 24
03/22/11   896,296 4484.51 0.08 24,758 23
03/23/11   899,517 4484.64 0.13 24,794 36
03/24/11   903,984 4484.82 0.18 24,844 50
03/25/11   906,718 4484.93 0.11 24,874 30
03/26/11   908,709 4485.01 0.08 24,896 22
03/27/11   909,954 4485.06 0.05 24,909 13
03/28/11   911,449 4485.12 0.06 24,924 15
03/29/11   912,945 4485.18 0.06 24,940 16
03/30/11   914,691 4485.25 0.07 24,958 18
03/31/11   915,939 4485.30 0.05 24,971 13
04/01/11   916,688 4485.33 0.03 24,978 7
04/02/11   918,188 4485.39 0.06 24,993 15
04/03/11   919,688 4485.45 0.06 25,009 16
04/04/11   920,439 4485.48 0.03 25,017 8
04/05/11   920,939 4485.50 0.02 25,022 5
04/06/11   921,690 4485.53 0.03 25,030 8
04/07/11   921,189 4485.51 -0.02 25,025 -5
04/08/11   920,689 4485.49 -0.02 25,019 -6
04/09/11   921,439 4485.52 0.03 25,027 8
04/10/11   920,439 4485.48 -0.04 25,017 -10
04/11/11   922,190 4485.55 0.07 25,035 18
04/12/11   923,692 4485.61 0.06 25,050 15
04/13/11   925,447 4485.68 0.07 25,068 18
04/14/11   927,202 4485.75 0.07 25,086 18
04/15/11   929,210 4485.83 0.08 25,107 21
04/16/11   931,219 4485.91 0.08 25,127 20
04/17/11   934,487 4486.04 0.13 25,160 33
04/18/11   938,768 4486.21 0.17 25,201 41
04/19/11   943,056 4486.38 0.17 25,242 41
04/20/11   948,109 4486.58 0.20 25,291 49
04/21/11   952,919 4486.77 0.19 25,337 46
04/22/11   957,229 4486.94 0.17 25,378 41
04/23/11   961,039 4487.09 0.15 25,422 44
04/24/11   965,620 4487.27 0.18 25,481 59
04/25/11   968,935 4487.40 0.13 25,524 43
04/26/11   971,745 4487.51 0.11 25,559 35
04/27/11   974,815 4487.63 0.12 25,599 40
04/28/11   977,889 4487.75 0.12 25,639 40
04/29/11   980,968 4487.87 0.12 25,678 39
04/30/11   983,280 4487.96 0.09 25,707 29
05/01/11   986,109 4488.07 0.11 25,739 32
05/02/11   988,684 4488.17 0.10 25,765 26
05/03/11   990,746 4488.25 0.08 25,786 21
05/04/11   992,294 4488.31 0.06 25,802 16
05/05/11   993,842 4488.37 0.06 25,817 15
05/06/11   995,134 4488.42 0.05 25,830 13
05/07/11   997,459 4488.51 0.09 25,855 25
05/08/11   1,002,117 4488.69 0.18 25,901 46
05/09/11   1,004,189 4488.77 0.08 25,922 21
05/10/11   1,006,004 4488.84 0.07 25,941 19
05/11/11   1,007,821 4488.91 0.07 25,960 19
05/12/11   1,009,898 4488.99 0.08 25,980 20
05/13/11   1,011,457 4489.05  0.06 25,996 16
05/14/11   1,013,277 4489.12 0.07 26,014 18
05/15/11   1,014,838 4489.18 0.06 26,030 16
05/16/11   1,016,140 4489.23 0.05 26,043 13
05/17/11   1,019,266 4489.35 0.12 26,074 31
05/18/11   1,020,309 4489.39 0.04 26,084 10
05/19/11   1,021,352 4489.43 0.04 26,095 11
05/20/11   1,021,874 4489.45 0.02 26,100 5
05/21/11   1,023,701 4489.52 0.07 26,118 18
05/22/11   1,026,314 4489.62 0.10 26,144 26
05/23/11   1,027,621 4489.67 0.05 26,157 13
05/24/11   1,028,668 4489.71 0.04 26,168 11
05/25/11   1,031,809 4489.83 0.12 26,199 31
05/26/11   1,032,857 4489.87 0.04 26,209 10
05/27/11   1,034,430 4489.93 0.06 26,225 16
05/28/11   1,037,317 4490.04 0.11 26,252 27
05/29/11   1,039,679 4490.13 0.09 26,273 21
05/30/11   1,042,306 4490.23 0.10 26,295 22
05/31/11   1,044,673 4490.32 0.09 26,315 20
06/01/11   1,046,516 4490.39 0.07 26,331 16
06/02/11   1,049,149 4490.49 0.10 26,354 23
06/03/11   1,051,522 4490.58 0.09 26,374 20
06/04/11   1,054,687 4490.70 0.12 26,401 27
06/05/11   1,057,856 4490.82 0.12 26,428 27
06/06/11   1,061,558 4490.96 0.14 26,459 31
06/07/11   1,065,264 4491.10 0.14 26,494 35
06/08/11   1,069,505 4491.26 0.16 26,535 41
06/09/11  1,074,285 4491.44 0.18 26,580 45
06/10/11   1,078,805 4491.61 0.17 26,610 30
06/11/11   1,078,805 4491.61 0.00 26,610 0
06/12/11   1,087,858 4491.95 0.34 26,653 43
06/13/11   1,092,392 4492.12 0.17 26,696 43
06/14/11   1,096,934 4492.29 0.17 26,748 52
06/15/11   1,101,217 4492.45 0.16 26,797 49
06/16/11   1,105,238 4492.60 0.15 26,823 26
06/17/11   1,107,115 4492.67 0.07 26,831 8
06/18/11   1,108,188 4492.71 0.04 26,835 4
06/19/11   1,109,798 4492.77 0.06 26,842 7
06/20/11   1,111,141 4492.82 0.05 26,848 6
06/21/11   1,112,486 4492.87 0.05 26,854 6
06/22/11   1,113,825 4492.92 0.05 26,859 5
06/23/11   1,115,168 4492.97 0.05 26,865 6
06/24/11   1,115,974 4493.00 0.03 26,868 3
06/25/11   1,116,511 4493.02 0.02 26,874 6
06/26/11   1,117,049 4493.04 0.02 26,880 6
06/27/11   1,117,049 4493.04 0.00 26,880 0
06/28/11   1,118,662 4493.10 0.06 26,899 19
06/29/11   1,120,815 4493.18 0.08 26,924 25
06/30/11   1,121,892 4493.22 0.04 26,936 12
07/01/11   1,123,778 4493.29 0.07 26,959 23
07/02/11   1,127,014 4493.41 0.12 26,996 37
07/03/11   1,128,905 4493.48 0.07 27,018 22
07/04/11   1,130,796 4493.55 0.07 27,028 10
07/05/11   1,133,228 4493.64 0.09 27,035 7
07/06/11   1,134,039 4493.67 0.03 27,038 3
07/07/11   1,134,850 4493.70 0.03 27,040 2
07/08/11   1,135,120 4493.71 0.01 27,041 1
07/09/11   1,135,120 4493.71 0.00 27,041 0
07/10/11   1,134,039 4493.67 -0.04 27,038 -3
07/11/11   1,132,687 4493.62 -0.05 27,034 -4
07/12/11   1,130,796 4493.55 -0.07 27,028 -6
07/13/11  1,129,175 4493.49 -0.06 27,021 -7
07/14/11  1,127,284 4493.42 -0.07 26,999 -22
07/15/11  1,124,586 4493.32  -0.10 26,968 -31
07/16/11  1,122,969 4493.26  -0.06 26,949 -19
07/17/11   1,121,622 4493.21 -0.05 26,933 -16
07/18/11   1,119,738 4493.14 -0.07 26,911 -22
07/19/11   1,118,124 4493.08 -0.06 26,893 -18
07/20/11   1,115,974 4493.00 -0.08 26,868 -25
07/21/11   1,115,437 4492.98 -0.02 26,866 -2
07/22/11   1,114,093 4492.93 -0.05 26,860 -6
07/23/11   1,111,946 4492.85 -0.08 26,852 -8
07/24/11   1,110,336 4492.79 -0.06 26,845 -7
07/25/11   1,108,188 4492.71 -0.08 26,835 -10
07/26/11   1,106,042 4492.63 -0.08 26,826 -9
07/27/11   1,104,433 4492.57 -0.06 26,820 -6
07/28/11   1,102,557 4492.50 -0.07 26,812 -8
07/29/11   1,100,681 4492.43 -0.07 26,791 -21
07/30/11   1,098,806 4492.36 -0.07 26,770 -21
07/31/11   1,097,201 4492.30 -0.06 26,751 -19
08/01/11   1,095,062 4492.22 -0.08 26,727 -24
08/02/11   1,093,193 4492.15 -0.07 26,706 -21
08/03/11   1,091,324 4492.08 -0.07 26,684 -22
08/04/11   1,091,858 4492.10 0.02 26,690 6
08/05/11   1,092,659 4492.13 0.03 26,699 9
08/06/11   1,093,460 4492.16 0.03 26,709 10
08/07/11   1,094,261 4492.19 0.03 26,718 9
08/08/11   1,095,062 4492.22 0.03 26,727 9
08/09/11   1,095,864 4492.25 0.03 26,736 9
08/10/11   1,093,460 4492.16 -0.09 26,709 -27
08/11/11   1,091,058 4492.07 -0.09 26,681 -28
08/12/11   1,088,658 4491.98 -0.09 26,657 -24
08/13/11   1,086,260 4491.89 -0.09 26,646 -11
08/14/11   1,083,597 4491.79 -0.10 26,633 -13
08/15/11   1,081,200 4491.70 -0.09 26,622 -11
08/16/11   1,078,805 4491.61 -0.09 26,610 -12
08/17/11   1,078,273 4491.59 -0.02 26,608 -2
08/18/11   1,079,071 4491.62 0.03 26,612 4
08/19/11   1,079,337 4491.63 0.01 26,613 1
08/20/11  1,077,209 4491.55  -0.08 26,602 -11
08/21/11   1,074,285 4491.44 -0.11 26,580 -22
08/22/11   1,072,160 4491.36 -0.08 26,560 -20
08/23/11   1,069,771 4491.27 -0.09 26,537 -23
08/24/11   1,067,384 4491.18 -0.09 26,514 -23
08/25/11   1,064,734 4491.08 -0.10 26,489 -25
08/26/11  1,062,351 4490.99  -0.09 26,466 -23
08/27/11  1,059,971 4490.90  -0.09 26,446 -20
08/28/11   1,057,328 4490.80 -0.10 26,423 -23
08/29/11   1,054,687 4490.70 -0.10 26,401 -22
08/30/11   1,052,576 4490.62 -0.08 26,383 -18
08/31/11   1,049,940 4490.52 -0.10 26,360 -23
09/01/11   1,047,569 4490.43 -0.09 26,340 -20
09/02/11   1,045,199 4490.34 -0.09 26,320 -20
09/03/11   1,044,147 4490.30 -0.04 26,311 -9
09/04/11   1,042,569 4490.24 -0.06 26,297 -14
09/05/11   1,040,204 4490.15 -0.09 26,277 -20
09/06/11   1,038,104 4490.07 -0.08 26,259 -18
09/07/11   1,035,744 4489.98 -0.09 26,238 -21
09/08/11  1,033,643 4489.90 -0.08 26,217 -21
09/09/11   1,031,023 4489.80 -0.10 26,191 -26
09/10/11   1,028,668 4489.71 -0.09 26,168 -23
09/11/11   1,026,052 4489.61 -0.10 26,142 -26
09/12/11   1,023,701 4489.52 -0.09 26,118 -24
09/13/11   1,021,613 4489.44 -0.08 26,097 -21
09/14/11   1,019,266 4489.35 -0.09 26,074 -23
09/15/11   1,016,921 4489.26 -0.09 26,051 -23
09/16/11   1,014,318 4489.16 -0.10 26,025 -26
09/17/11   1,011,977 4489.07 -0.09 26,001 -24
09/18/11  1,009,638 4488.98  -0.09 25,978 -23
09/19/11   1,008,340 4488.93 -0.05 25,965 -13
09/20/11   1,006,004 4488.84 -0.09 25,941 -24
09/21/11   1,003,671 4488.75 -0.09 25,917 -24
09/22/11   1,001,858 4488.68 -0.07 25,899 -18
09/23/11   999,528 4488.59 -0.09 25,875 -24
09/24/11   996,942 4488.49 -0.10 25,849 -26
09/25/11   996,167 4488.46 -0.03 25,841 -8
09/26/11   996,167 4488.46 0.00 25,841 0
09/27/11   998,235 4488.54 0.08 25,862 21
09/28/11  997,459 4488.51  -0.03 25,855 -7
09/29/11   998,494 4488.55 0.04 25,865 10
09/30/11   996,684 4488.48 -0.07 25,847 -18
10/01/11   995,909 4488.45 -0.03 25,839 -8
10/02/11     995,134 4488.42 -0.03 25,830 -9
10/03/11   995,134 4488.42 0.00 25,830 0
10/04/11   992,294 4488.31 -0.11 25,802 -28
10/05/11   992,552 4488.32 0.01 25,804 2
10/06/11   990,230 4488.23 -0.09 25,781 -23
10/07/11   989,973 4488.22 -0.01 25,778 -3
10/08/11   988,427 4488.16 -0.06 25,763 -15
10/09/11   986,109 4488.07 -0.09 25,739 -24
10/10/11   987,397 4488.12 0.05 25,752 13
10/11/11   988,684 4488.17 0.05 25,765 13
10/12/11   989,715 4488.21 0.04 25,776 11
10/13/11   989,457 4488.20  -0.01 25,773 -3
10/14/11   989,715 4488.21 0.01 25,776 3
10/15/11   989,199 4488.19 -0.02 25,770 -6
10/16/11  988,427 4488.16  -0.03 25,763 -7
10/17/11   987,397 4488.12 -0.04 25,752 -11
10/18/11   987,912 4488.14 0.02 25,757 5
10/19/11   987,397 4488.12 -0.02 25,752 -5
10/20/11   987,139 4488.11 -0.01 25,750 -2
10/21/11   987,912 est 4488.14 0.03 25,757 7
10/22/11   988,684 4488.17 0.03 25,765 8
10/23/11   988,684 4488.17 0.00 25,765 0
10/24/11   989,457 4488.20 0.03 25,773 8
10/25/11   988,684 4488.17 -0.03 25,765 -8
10/26/11   987,139 4488.11 -0.06 25,750 -15
10/27/11   986,109 4488.07 -0.04 25,739 -11
10/28/11   985,852 4488.06 -0.01 25,736 -3
10/29/11   985,852 4488.06 0.00 25,736 0
10/30/11   985,595 4488.05 -0.01 25,734 -2
10/31/11   984,823 4488.02 -0.03 25,725 -9
11/01/11   983,023 4487.95 -0.07 25,704 -21
11/02/11   983,023 4487.95 0.00 25,704 0
11/03/11   979,171 4487.80 -0.15 25,655 -49
11/04/11   978,145 4487.76 -0.04 25,642 -13
11/05/11  977,889 4487.75  -0.01 25,639 -3
11/06/11   977,889 4487.75 0.00 25,639 0
11/07/11   976,351 4487.69 -0.06 25,619 -20
11/08/11   974,559 4487.62 -0.07 25,596 -23
11/09/11   973,535 4487.58 -0.04 25,582 -14
11/10/11   973,535 4487.58 0.00 25,582 0
11/11/11   973,023 4487.56 -0.02 25,576 -6
11/12/11   972,000 4487.52 -0.04 25,563 -13
11/13/11   971,489 4487.50 -0.02 25,556 -7
11/14/11   970,467 4487.46 -0.04 25,543 -13
11/15/11   971,233 4487.49 0.03 25,553 10
11/16/11   969,190 4487.41 -0.08 25,527 -26
11/17/11   969,190 4487.41 0.00 25,527 0
11/18/11  965,620 4487.27  -0.14 25,481 -46
11/19/11   964,092 4487.21 -0.06 25,461 -20
11/20/11   962,565 4487.15 -0.06 25,442  -19
11/21/11   960,530 4487.07 -0.08 25,415 -27
11/22/11   958,498 4486.99 -0.08 25,390 -25
11/23/11   955,960 4486.89 -0.10 25,366 -24
11/24/11   954,186 4486.82 -0.07 25,349 -17
11/25/11   951,652 4486.72 -0.10 25,325 -24
11/26/11   949,374 4486.63 -0.09 25,303 -22
11/27/11   947,351 4486.55 -0.08 25,284 -19
11/28/11   945,076 4486.46 -0.09 25,261 -23
11/29/11   942,803 4486.37 -0.09 25,240 -21
11/30/11   942,046 4486.34 -0.03 25,233 -7
12/01/11   940,785 4486.29 -0.05 25,221 -12
12/02/11   939,020 4486.22 -0.07 25,204 -17
12/03/11   936,753 4486.13 -0.09 25,182 -22
12/04/11  934,487 4486.04  -0.09 25,160 -22
12/05/11   934,990 est 4486.06 0.02 25,165 5
12/06/11   935,494 4486.08 0.02 25,170 5
12/07/11   936,501 4486.12 0.04 25,180 10
12/08/11   937,257 4486.15 0.03 25,187 7
12/09/11   937,508 4486.16 0.01 25,189 2
12/10/11   937,760 4486.17 0.01 25,192 3
12/11/11   937,508 4486.16 -0.01 25,189 -3
12/12/11  936,753 4486.13 -0.03 25,182 -7
12/13/11   935,998 4486.10 -0.03 25,175 -7
12/14/11   934,487 4486.04 -0.06 25,160 -15
12/15/11  933,481 4486.00  -0.04 25,150 -10
12/16/11   932,978 4485.98 -0.02 25,145 -5
12/17/11   932,224 4485.95 -0.03 25,137 -8
12/18/11   931,973 4485.94 -0.01 25,135 -2
12/19/11   929,963 4485.86 -0.08 25,115 -20
12/20/11   929,210 4485.83 -0.03 25,107 -8
12/21/11   928,457 4485.80 -0.03 25,099 -8
12/22/11   927,202 4485.75 -0.05 25,086 -13
12/23/11   925,697 4485.69 -0.06 25,070 -16
12/24/11   924,444 4485.64 -0.05 25,058 -12
12/25/11   923,943 4485.62 -0.02 25,053 -5
12/26/11   922,440 4485.56 -0.06 25,038 -15
12/27/11   921,439 4485.52 -0.04 25,027 -11
12/28/11   920,188 4485.47 -0.05 25,014 -13
12/29/11  919,438 4485.44  -0.03 25,006 -8
12/30/11   918,188 4485.39 -0.05 24,993 -13
12/31/11   917,188 4485.35 -0.04 24,983 -10

 
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