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

01/01/09    707,031 4476.53 0.02 22,669 5
01/02/09    707,484 4476.55 0.02 22,674 5
01/03/09    707,938 4476.57 0.02 22,679 5
01/04/09    708,165 4476.58 0.01 22,682 3
01/05/09    708,392 4476.59 0.01 22,684 2
01/06/09    708,846 4476.61 0.02 22,690 6
01/07/09    709,527 4476.64 0.03 22,697 7
01/08/09    710,208 4476.67 0.03 22,705 8
01/09/09    711,116 4476.71 0.04 22,716 11
01/10/09    711,570 4476.73 0.02 22,721 5
01/11/09    712,479 4476.77 0.04 22,731 10
01/12/09    713,388 4476.81 0.04 22,742 11
01/13/09    713,843 4476.83 0.02 22,747 5
01/14/09    714,753 4476.87 0.04 22,757 10
01/15/09    715,664 4476.91 0.04 22,768 11
01/16/09    716,347 4476.94 0.03 22,775 7
01/17/09    717,030 4476.97 0.03 22,783 8
01/18/09    717,714 4477.00 0.03 22,791 8
01/19/09    718,626 4477.04 0.04 22,801 10
01/20/09    719,310 4477.07 0.03 22,809 8
01/21/09    720,450 4477.12 0.05 22,822 13
01/22/09    722,049 4477.19 0.07 22,841 19
01/23/09    723,877 4477.27 0.08 22,862 21
01/24/09    726,393 4477.38 0.11 22,891 29
01/25/09    727,767 4477.44 0.06 22,907 16
01/26/09    729,142 4477.50 0.06 22,923 16
01/27/09    729,142 4477.50 0.00 22,923 0
01/28/09    729,142 4477.50 0.00 22,923 0
01/29/09    729,830 4477.53 0.03 22,931 8
01/30/09    730,289 4477.55 0.02 22,936 5
01/31/09    730,977 4477.58 0.03 22,944 8
02/01/09    731,206 4477.59 0.01 22,946 2
02/02/09    731,895 4477.62 0.03 22,954 8
02/03/09    732,813 4477.66 0.04 22,965 11
02/04/09    733,502 4477.69 0.03 22,972 7
02/05/09    734,651 4477.74 0.05 22,985 13
02/06/09    736,031 4477.80 0.06 23,001 16
02/07/09    736,491 4477.82 0.02 23,006 5
02/08/09    737,641 4477.87 0.05 23,020 14
02/09/09    738,332 4477.90 0.03 23,028 8
02/10/09    739,484 4477.95 0.05 23,041 13
02/11/09    740,405 4477.99 0.04 23,051 10
02/12/09    741,328 4478.03 0.04 23,062 11
02/13/09    743,635 4478.13 0.10 23,090 28
02/14/09    744,559 4478.17 0.04 23,102 12
02/15/09    747,334 4478.29 0.12 23,135 33
02/16/09    748,491 4478.34 0.05 23,149 14
02/17/09    749,648 4478.39 0.05 23,163 14
02/18/09    750,343 4478.42 0.03 23,172 9
02/19/09    750,575 4478.43 0.01 23,174 2
02/20/09    748,954 4478.36 -0.07 23,155 -19
02/21/09    748,259 4478.33 -0.03 23,146 -9
02/22/09    752,662 4478.52 0.19 23,200 54
02/23/09    757,078 4478.71 0.19 23,253 53
02/24/09    760,100 4478.84 0.13 23,289 36
02/25/09    762,897 4478.96 0.12 23,323 34
02/26/09    765,231 4479.06 0.10 23,351 28
02/27/09    767,333 4479.15 0.09 23,376 25
02/28/09    769,204 4479.23 0.08 23,398 22
03/01/09    774,593 4479.46 0.23 23,463 65
03/02/09    781,609 4479.76 0.30 23,546 83
03/03/09    787,540 4480.01 0.25 23,616 70
03/04/09    790,140 4480.12 0.11 23,643 27
03/05/09    792,269 4480.21 0.09 23,664 21
03/06/09    794,162 4480.29 0.08 23,683 19
03/07/09    795,820 4480.36 0.07 23,699 16
03/08/09    797,242 4480.42 0.06 23,714 15
03/09/09    798,428 4480.47 0.05 23,725 11
03/10/09    799,615 4480.52 0.05 23,737 12
03/11/09    800,565 4480.56 0.04 23,746 9
03/12/09    801,753 4480.61 0.05 23,758 12
03/13/09    802,941 4480.66 0.05 23,770 12
03/14/09    804,130 4480.71 0.05 23,782 12
03/15/09    805,795 4480.78 0.07 23,798 16
03/16/09    807,223 4480.84 0.06 23,813 15
03/17/09    808,652 4480.90 0.06 23,827 14
03/18/09    810,082 4480.96 0.06 23,841 14
03/19/09    811,274 4481.01 0.05 23,852 11
03/20/09    812,467 4481.06 0.05 23,865 13
03/21/09    814,616 4481.15 0.09 23,887 22
03/22/09    816,289 4481.22 0.07 23,904 17
03/23/09    817,245 4481.26 0.04 23,914 10
03/24/09    818,441 4481.31 0.05 23,926 12
03/25/09    819,637 4481.36 0.05 23,938 12
03/26/09    820,834 4481.41 0.05 23,950 12
03/27/09    821,793 4481.45 0.04 23,960 10
03/28/09    823,231 4481.51 0.06 23,975 15
03/29/09    824,430 4481.56 0.05 23,987 12
03/30/09    825,150 4481.59 0.03 23,994 7
03/31/09    826,350 4481.64 0.05 24,007 13
04/01/09    827,311 4481.68 0.04 24,016 9
04/02/09    828,752 4481.74 0.06 24,031 15
04/03/09    829,473 4481.77 0.03 24,038 7
04/04/09    830,434 4481.81 0.04 24,048 10
04/05/09    831,637 4481.86 0.05 24,060 12
04/06/09    832,841 4481.91 0.05 24,072 12
04/07/09    834,044 4481.96 0.05 24,084  12
04/08/09    835,249 4482.01 0.05 24,097 13
04/09/09    836,695 4482.07 0.06 24,111 14
04/10/09    838,383 4482.14 0.07 24,129 18
04/11/09    839,590 4482.19 0.05 24,141 12
04/12/09    840,556 4482.23 0.04 24,151 10
04/13/09    842,005 4482.29 0.06 24,166 15
04/14/09    842,972 4482.33 0.04 24,176 10
04/15/09    843,697 4482.36 0.03 24,184 8
04/16/09    844,907 4482.41 0.05 24,196 12
04/17/09    845,875 4482.45 0.04 24,206 10
04/18/09    847,086 4482.50 0.05 24,219 13
04/19/09    848,782 4482.57 0.07 24,236 17
04/20/09    850,479 4482.64 0.07 24,254 18
04/21/09    852,420 4482.72 0.08 24,274 20
04/22/09    854,363 4482.80 0.08 24,294 20
04/23/09    856,550 4482.89 0.09 24,316 22
04/24/09    858,983 4482.99 0.10 24,341 25
04/25/09    860,687 4483.06 0.07 24,360 19
04/26/09    862,149 4483.12 0.06 24,376 16
04/27/09    863,856 4483.19 0.07 24,395 19
04/28/09    864,588 4483.22 0.03 24,403 8
04/29/09    865,808 4483.27 0.05 24,417 14
04/30/09    867,274 4483.33 0.06 24,433 16
05/01/09    870,942 4483.48 0.15 24,475 42
05/02/09    874,371 4483.62 0.14 24,513 38
05/03/09    878,051 4483.77 0.15 24,554 41
05/04/09    882,299 4483.94 0.17 24,601 47
05/05/09    886,415 4484.11 0.17 24,647 46
05/06/09    889,868 4484.25 0.14 24,686 39
05/07/09    893,080 4484.38 0.13 24,722 36
05/08/09    895,305 4484.47 0.09 24,747 25
05/09/09    897,782 4484.57 0.10 24,775 28
05/10/09    900,013 4484.66 0.09 24,799 24
05/11/09    901,749 4484.73 0.07 24,818 19
05/12/09    903,735 4484.81 0.08 24,841 23
05/13/09    905,723 4484.89 0.08 24,863 22
05/14/09    907,962 4484.98 0.09 24,888 25
05/15/09    910,203 4485.07 0.09 24,911 23
05/16/09    912,197 4485.15 0.08 24,932 21
05/17/09    914,192 4485.23 0.08 24,953 21
05/18/09    916,189 4485.31 0.08 24,974 21
05/19/09    917,938 4485.38 0.07 24,991 17
05/20/09    919,688 4485.45 0.07 25,009 18
05/21/09    921,189 4485.51 0.06 25,025 16
05/22/09    922,440 4485.56 0.05 25,038 13
05/23/09    923,692 4485.61 0.05 25,050 12
05/24/09    923,692 4485.61 0.00 25,050 0
05/25/09    924,945 4485.66 0.05 25,063 13
05/26/09    927,955 4485.78 0.12 25,094 31
05/27/09    928,708 4485.81 0.03 25,102 8
05/28/09    928,708 4485.81 0.00 25,102 0
05/29/09    928,708 4485.81 0.00 25,102 0
05/30/09    929,210 4485.83 0.02 25,107 5
05/31/09    929,712 4485.85 0.02 25,112 5
06/01/09  929,963 4485.86 0.01 25,115 3
06/02/09    930,968 4485.90 0.04 25,125 10
06/03/09    931,722 4485.93 0.03 25,133 8
06/04/09    933,733 4486.01 0.08 25,153 20
06/05/09    934,991 4486.06 0.05 25,165 12
06/06/09    935,998 4486.10 0.04 25,175 10
06/07/09    937,005 4486.14 0.04 25,185 10
06/08/09    937,760 4486.17 0.03 25,192 7
06/09/09    938,516 4486.20 0.03 25,199 7
06/10/09    939,776 4486.25 0.05 25,211 12
06/11/09    940,533 4486.28 0.03 25,218 7
06/12/09    941,289 4486.31 0.03 25,225 7
06/13/09    943,561 4486.40 0.09 25,247 22
06/14/09    944,318 4486.43 0.03 25,254 7
06/15/09    945,076 4486.46 0.03 25,261 7
06/16/09    945,329 4486.47 0.01 25,264 3
06/17/09    945,582 4486.48 0.01 25,266 2
06/18/09    945,582 4486.48 0.00 25,266 0
06/19/09    945,329 4486.47 -0.01 25,264 -2
06/20/09    945,834 4486.49 0.02 25,269 5
06/21/09    946,340 4486.51 0.02 25,274 5
06/22/09    946,845 4486.53 0.02 25,278 4
06/23/09    947,351 4486.55 0.02 25,284 6
06/24/09    948,109 4486.58 0.03 25,291 7
06/25/09    948,615 4486.60 0.02 25,296 5
06/26/09    949,121 4486.62 0.02 25,301 5
06/27/09    948,868 4486.61 -0.01 25,298 -3
06/28/09    948,362 4486.59 -0.02 25,293 -5
06/29/09    947,846 4486.57 -0.02 25,288 -5
06/30/09    947,098 4486.54 -0.03 25,281 -7
07/01/09     945,076 4486.46 -0.08 25,261 -20
07/02/09     943,813 4486.41 -0.05 25,249 -12
07/03/09     942,551 4486.36 -0.05 25,237 -12
07/04/09    941,542 4486.32 -0.04 25,228 -9
07/05/09     940,028 4486.26 -0.06 25,213 -15
07/06/09     938,768 4486.21 -0.05 25,201 -12
07/07/09    937,508 4486.16 -0.05 25,189 -12
07/08/09    935,998 4486.10 -0.06 25,175 -14
07/09/09    934,236 4486.03 -0.07 25,157 -18
07/10/09    932,475 4485.96 -0.07 25,140 -17
07/11/09     930,968 4485.90 -0.06 25,125 -15
07/12/09    929,210 4485.83 -0.07 25,107 -18
07/13/09    927,453 4485.76 -0.07 25,089 -18
07/14/09    926,199 4485.71 -0.05 25,076 -13
07/15/09    924,695 4485.65 -0.06 25,061 -15
07/16/09    923,192 4485.59 -0.06 25,045 -16
07/17/09    923,192 4485.59 0.00 25,045 0
07/18/09    919,188 4485.43 -0.16 25,004 -41
07/19/09    917,938 4485.38 -0.05 24,991 -13
07/20/09    915,689 4485.29 -0.09 24,968 -23
07/21/09    914,691 4485.25 -0.04 24,958 -10
07/22/09    911,200 4485.11 -0.14 24,922 -36
07/23/09    908,958 4485.02 -0.09 24,898 -24
07/24/09    906,718 4484.93 -0.09 24,874 -24
07/25/09    904,481 4484.84 -0.09 24,849 -25
07/26/09    902,494 4484.76 -0.08 24,827 -22
07/27/09    900,261 4484.67 -0.09 24,802 -25
07/28/09    899,277 4484.63 -0.04 24,791 -11
07/29/09    896,048 4484.50 -0.13 24,755 -36
07/30/09    893,821 4484.41 -0.09 24,730 -25
07/31/09    891,597 4484.32 -0.09 24,705 -25
08/01/09    889,621 4484.24 -0.08 24,683 -22
08/02/09    887,401 4484.15 -0.09 24,658 -25
08/03/09    884,937 4484.05 -0.10 24,630 -28
08/04/09    882,475 4483.95 -0.10 24,602 -28
08/05/09    879,770 4483.84 -0.11 24,573 -29
08/06/09    877,315 4483.74 -0.10 24,546 -27
08/07/09    874,616 4483.63 -0.11 24,515 -31
08/08/09    871,922 4483.52 -0.11 24,485 -30
08/09/09    870,208 4483.45 -0.07 24,466 -19
08/10/09    867,518 4483.34 -0.11 24,436 -30
08/11/09    864,832 4483.23 -0.11 24,406 -30
08/12/09    861,906 4483.11 -0.12 24,374 -32
08/13/09    858,983 4482.99 -0.12 24,341 -33
08/14/09    856,307 4482.88 -0.11 24,314 -27
08/15/09    853,634 4482.77 -0.11 24,286 -28
08/16/09    851,450 4482.68 -0.09 24,264 -22
08/17/09    849,267 4482.59 -0.09 24,242 -22
08/18/09    847,086 4482.50 -0.09 24,219 -23
08/19/09    844,423 4482.39 -0.11 24,191 -28
08/20/09    842,247 4482.30 -0.09 24,169 -22
08/21/09    839,832 4482.20 -0.10 24,144 -25
08/22/09    837,659 4482.11 -0.09 24,121 -23
08/23/09    834,767 4481.99 -0.12 24,092 -29
08/24/09    832,359 4481.89 -0.10 24,068 -24
08/25/09    829,713 4481.78 -0.11 24,041 -27
08/26/09    827,070 4481.67 -0.11 24,014 -27
08/27/09    824,910 4481.58 -0.09 23,992 -22
08/28/09    822,512 4481.48 -0.10 23,967 -25
08/29/09    822,512 4481.48 0.00 23,967 0
08/30/09    817,724 4481.28 -0.20 23,919 -48
08/31/09    815,094 4481.17 -0.11 23,892 -27
09/01/09    813,422 4481.10 -0.07 23,875 -17
09/02/09    811,751 4481.03 -0.07 23,857 -18
09/03/09    810,082 4480.96 -0.07 23,841 -16
09/04/09    808,176 4480.88 -0.08 23,822 -19
09/05/09    806,271 4480.80 -0.08 23,803 -19
09/06/09    804,605 4480.73 -0.07 23,787 -16
09/07/09    802,465 4480.64 -0.09 23,766 -21
09/08/09    801,277 4480.59 -0.05 23,754 -12
09/09/09    799,615 4480.52 -0.07 23,737 -17
09/10/09    797,954 4480.45 -0.07 23,721 -16
09/11/09    796,294 4480.38 -0.07 23,704 -17
09/12/09    794,636 4480.31 -0.07 23,687 -17
09/13/09    792,978 4480.24 -0.07 23,671 -16
09/14/09    791,795 4480.19 -0.05 23,660 -11
09/15/09    790,140 4480.12 -0.07 23,643 -17
09/16/09    788,958 4480.07 -0.05 23,631 -12
09/17/09    787,540 4480.01 -0.06 23,616 -15
09/18/09    786,596 4479.97 -0.04 23,606 -10
09/19/09    785,416 4479.92 -0.05 23,592 -14
09/20/09    784,460 4479.88 -0.04 23,580 -12
09/21/09    783,010 4479.82 -0.06 23,563 -17
09/22/09    782,068 4479.78 -0.04 23,552 -11
09/23/09    781,150 4479.74 -0.04 23,541 -11
09/24/09    779,997 4479.69 -0.05 23,527 -14
09/25/09    779,056 4479.65 -0.04 23,516 -11
09/26/09    776,941 4479.56 -0.09 23,491 -25
09/27/09    775,297 4479.49 -0.07 23,471 -20
09/28/09    772,952 4479.39 -0.10 23,443 -28
09/29/09    771,077 4479.31 -0.08 23,421 -22
09/30/09    768,502 4479.20 -0.11 23,390 -31
10/01/09    766,632 4479.12 -0.08 23,368 -22
10/02/09    764,764 4479.04 -0.08 23,345 -23
10/03/09    763,130 4478.97 -0.07 23,326 -19
10/04/09    761,731 4478.91 -0.06 23,309 -17
10/05/09    760,100 4478.84 -0.07 23,289 -20
10/06/09    758,238 4478.76 -0.08 23,267 -22
10/07/09    756,377 4478.68 -0.08 23,244 -23
10/08/09    754,751 4478.61 -0.07 23,225 -19
10/09/09    753,358 4478.55 -0.06 23,208 -17
10/10/09    751,734 4478.48 -0.07 23,188 -20
10/11/09    750,112 4478.41 -0.07 23,169 -19
10/12/09    748,722 4478.35 -0.06 23,152 -17
10/13/09    751,502 4478.47 0.12 23,186 34
10/14/09    751,039 4478.45 -0.02 23,180 -6
10/15/09    750,112 4478.41 -0.04 23,169 -11
10/16/09    748,722 4478.35 -0.06 23,152 -17
10/17/09    747,102 4478.28 -0.07 23,132 -20
10/18/09    745,483 4478.21 -0.07 23,113 -19
10/19/09    744,328 4478.16 -0.05 23,099 -14
10/20/09    742,712 4478.09 -0.07 23,079 -20
10/21/09    741,097 4478.02 -0.07 23,060 -19
10/22/09    739,714 4477.96 -0.06 23,044 -16
10/23/09    738,332 4477.90 -0.06 23,028 -16
10/24/09    736,951 4477.84 -0.06 23,012 -16
10/25/09    736,261 4477.81 -0.03 23,004 -8
10/26/09    735,341 4477.77 -0.04 22,993 -11
10/27/09    734,651 4477.74 -0.03 22,985 -8
10/28/09    732,584 4477.65 -0.09 22,962 -23
10/29/09    730,289 4477.55 -0.10 22,936 -26
10/30/09    728,454 4477.47 -0.08 22,915 -21
10/31/09    726,622 4477.39 -0.08 22,893 -22
11/01/09    724,334 4477.29 -0.10 22,867 -26
11/02/09    722,505 4477.21 -0.08 22,847 -20
11/03/09    720,907 4477.14 -0.07 22,828 -19
11/04/09    719,082 4477.06 -0.08 22,807 -21
11/05/09    717,258 4476.98 -0.08 22,786 -21
11/06/09    716,574 4476.95 -0.03 22,778 -8
11/07/09    717,030 4476.97 0.02 22,783 5
11/08/09    717,030 4476.97 0.00 22,783 0
11/09/09    717,714 4477.00 0.03 22,791 8
11/10/09    718,626 4477.04 0.04 22,801 10
11/11/09    719,538 4477.08 0.04 22,812 11
11/12/09    720,222 4477.11 0.03 22,820 8
11/13/09    712,592 4476.77 -0.34 22,732 -88
11/14/09    722,049 4477.19 0.42 22,841 109
11/15/09    722,505 4477.21 0.02 22,847 6
11/16/09    723,191 4477.24 0.03 22,854 7
11/17/09    724,334 4477.29 0.05 22,867 13
11/18/09    724,792 4477.31 0.02 22,873 6
11/19/09    715,478 4476.90 -0.41 22,765 -108
11/20/09    727,309 4477.42 0.52 22,901 136
11/21/09    727,996 4477.45 0.03 22,909 8
11/22/09    728,913 4477.49 0.04 22,920 11
11/23/09    729,371 4477.51 0.02 22,926 6
11/24/09    730,059 4477.54 0.03 22,933 7
11/25/09    730,747 4477.57 0.03 22,941 8
11/26/09    731,436 4477.60 0.03 22,949 8
11/27/09    733,272 4477.68 0.08 22,970 21
11/28/09    733,732 4477.70 0.02 22,975 5
11/29/09    733,962 4477.71 0.01 22,978 3
11/30/09    734,421 4477.73 0.02 22,983 5
12/01/09    735,111 4477.76 0.03 22,991 8
12/02/09    735,801 4477.79 0.03 22,998 7
12/03/09    736,491 4477.82 0.03 23,006 8
12/04/09    737,181 4477.85 0.03 23,014 8
12/05/09    737,641 4477.87 0.02 23,020 6
12/06/09    738,562 4477.91 0.04 23,031 11
12/07/09    739,253 4477.94 0.03 23,038 7
12/08/09    739,023 4477.93 -0.01 23,036 -2
12/09/09    739,023 4477.93 0.00 23,036 0
12/10/09    739,714 4477.96 0.03 23,044 8
12/11/09    741,558 4478.04 0.08 23,065 21
12/12/09    745,021 4478.19 0.15 23,107 42
12/13/09    745,714 4478.22 0.03 23,116 9
12/14/09    746,408 4478.25 0.03 23,124 8
12/15/09    747,334 4478.29 0.04 23,135 11
12/16/09    748,954 4478.36 0.07 23,155 20
12/17/09    749,880 4478.40 0.04 23,166 11
12/18/09    750,575 4478.43 0.03 23,174 8
12/19/09    751,270 4478.46 0.03 23,183 9
12/20/09    752,430 4478.51 0.05 23,197 14
12/21/09    754,054 4478.58 0.07 23,216 19
12/22/09    754,983 4478.62 0.04 23,228 12
12/23/09    755,215 4478.63 0.01 23,230 2
12/24/09    756,145 4478.67 0.04 23,242 12
12/25/09    756,610 4478.69 0.02 23,247 5
12/26/09    757,540 4478.73 0.04 23,258 11
12/27/09    758,258 4478.76 0.03 23,267 9
12/28/09    758,936 4478.79 0.03 23,275 8
12/29/09    760,100 4478.84 0.05 23,289 14
12/30/09    760,799 4478.87 0.03 23,298 9
12/31/09    761,265 4478.89 0.02 23,303 5
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