Lake Powell
Lake Powell
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Elevation & Content |
Water Inflow Data |
Glen Canyon Dam Release Data | Lake Powell is 89.87 feet below Full Pool (Elevation 3,700)
By content, Lake Powell is 52.39% of Full Pool (24,322,000 af)
| Total inflows for water year 2018: 2,961,661 acre feet
This is 74.98% of the April 23rd average of 3,950,148 acre feet | Total releases for water year 2018: 4,930,301 acre feet
This is 59.91% of the minimum required of 8,230,000 acre feet |
During WY 2018, water storage has fallen by 1,932,147 AF and total outflows have exceeded total inflows by 1,968,640 AF |
The 28 tracked reservoirs above Lake Powell are currently at 76.88% of capacity. Click for Details |
Inflows for WY 2018 are 69.96% of WY 2017  
Rivers feeding Lake Powell are running at 35.17% of the Apr 25th avg. Click for Details
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Powell is up 8.23 feet from one year ago
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View Acre Feet
Last 14 Measurements Powell is down -1.16 feet over these measurements
DATE MEASURED |
ELEVATION |
CHANGE |
CONTENT |
INFLOW (cfs) |
OUTFLOW (cfs) |
HIGH TEMP |
LOW TEMP |
WATER TEMP |
Mon, Apr 23, 2018 |
3610.13 |
-0.09 |
12743390 |
7957 |
12482 |
86.0 |
53.0 |
n/a |
Sun, Apr 22, 2018 |
3610.22 |
-0.04 |
12752458 |
8756 |
10538 |
80.0 |
51.0 |
n/a |
Sat, Apr 21, 2018 |
3610.26 |
-0.10 |
12756489 |
6561 |
11637 |
73.0 |
41.0 |
54.0 |
Fri, Apr 20, 2018 |
3610.36 |
-0.10 |
12766571 |
7777 |
12856 |
55.0 |
41.0 |
54.0 |
Thu, Apr 19, 2018 |
3610.46 |
-0.10 |
12776658 |
7235 |
12317 |
75.0 |
45.0 |
54.0 |
Wed, Apr 18, 2018 |
3610.56 |
-0.12 |
12786751 |
6504 |
12688 |
64.0 |
37.0 |
54.0 |
Tue, Apr 17, 2018 |
3610.68 |
-0.09 |
12798869 |
7052 |
11589 |
64.0 |
44.0 |
53.0 |
Mon, Apr 16, 2018 |
3610.77 |
-0.07 |
12807963 |
8792 |
12230 |
80.0 |
55.0 |
55.0 |
Sun, Apr 15, 2018 |
3610.84 |
-0.05 |
12815039 |
7328 |
9666 |
75.0 |
44.0 |
55.0 |
Sat, Apr 14, 2018 |
3610.89 |
-0.06 |
12820094 |
8705 |
11595 |
66.0 |
39.0 |
54.0 |
Fri, Apr 13, 2018 |
3610.95 |
-0.10 |
12826163 |
7131 |
12225 |
59.0 |
39.0 |
54.0 |
Thu, Apr 12, 2018 |
3611.05 |
-0.13 |
12836281 |
5338 |
12089 |
73.0 |
44.0 |
54.0 |
Wed, Apr 11, 2018 |
3611.18 |
-0.11 |
12849443 |
6591 |
12243 |
87.0 |
53.0 |
55.0 |
Tue, Apr 10, 2018 |
3611.29 |
-0.12 |
12860587 |
6193 |
12400 |
75.0 |
48.0 |
54.0 |
Averages of List |
3610.69 |
-0.09 |
12799768.29 |
7280.00 |
11896.79 |
72.29 |
45.29 |
54.1 |
Averages for April 25th
AVERAGE TYPE |
ELEVATION |
CHANGE |
CONTENT |
INFLOW (cfs) |
OUTFLOW (cfs) |
HIGH TEMP |
LOW TEMP |
WATER TEMP |
Since Filled |
3636.96 |
0.10 |
16081436.97 |
17353.41 |
12557.05 |
74.84 |
48.45 |
56.3 |
All-Time |
3620.46 |
0.08 |
14721135.56 |
17045.85 |
12864.93 |
75.22 |
47.92 |
56.3 |
Last 10 April 25th's data records
DATE MEASURED |
ELEVATION |
CHANGE |
CONTENT |
INFLOW (cfs) |
OUTFLOW (cfs) |
HIGH TEMP |
LOW TEMP |
WATER TEMP |
Tue, Apr 25, 2017 |
3602.64 |
0.32 |
12003734 |
28209 |
10970 |
68.0 |
53.0 |
57.0 |
Mon, Apr 25, 2016 |
3591.73 |
0.02 |
10977844 |
12855 |
11498 |
62.1 |
50.0 |
57.0 |
Sat, Apr 25, 2015 |
3590.42 |
0.02 |
10858569 |
10940 |
9594 |
66.0 |
48.0 |
59.0 |
Fri, Apr 25, 2014 |
3575.93 |
0.30 |
9594882 |
22646 |
8666 |
80.1 |
50.0 |
57.0 |
Thu, Apr 25, 2013 |
3596.89 |
-0.10 |
11455772 |
4671 |
9408 |
73.0 |
48.0 |
55.0 |
Wed, Apr 25, 2012 |
3635.81 |
0.02 |
15513740 |
10343 |
8591 |
75.9 |
64.0 |
63.0 |
Mon, Apr 25, 2011 |
3610.87 |
0.24 |
12818072 |
21217 |
15452 |
70.0 |
45.0 |
55.0 |
Sun, Apr 25, 2010 |
3619.78 |
0.24 |
13739943 |
20372 |
9474 |
75.9 |
48.9 |
58.0 |
Sat, Apr 25, 2009 |
3610.17 |
0.14 |
12747419 |
17145 |
9650 |
69.1 |
50.0 |
54.0 |
Fri, Apr 25, 2008 |
3592.61 |
0.19 |
11058446 |
21959 |
13000 |
68.0 |
37.9 |
54.0 |
Averages of List |
3602.69 |
0.14 |
12076842.10 |
17035.70 |
10630.30 |
70.81 |
49.48 |
56.9 |
Accessibility of Primitive Launches and Other Sites
As of Monday, April 23rd, 2018 where elevation was 3610.13'
SITE/LAUNCH NAME |
MINIMUM SAFE ELEVATION |
ABSOLUTE MINIMUM USABLE ELEVATION |
CURRENT LEVEL VS. ABSOLUTE MINIMUM |
CURRENT ACCESSIBILITY |
Castle Rock Cut-Off |
3583.00 |
3580.00 |
30.13 Above |
Open and Usable |
Antelope Point |
3592.00 |
3590.00 |
20.13 Above |
Open and Usable |
Hite Marina |
3650.00 |
3645.00 |
34.87 Below |
Unusable, go to main marinas |
Farley Canyon |
3653.00 |
3649.00 |
38.87 Below |
Unusable, go to main marinas |
Copper Canyon |
3663.00 |
3660.00 |
49.87 Below |
Unusable, go to main marinas |
Bullfrog to Halls Creek Cut-Off |
3670.00 |
3668.00 |
57.87 Below |
Unusable, use Main Channel |
Piute Farms |
3682.00 |
3680.00 |
69.87 Below |
Unusable, go to main marinas |
Gunsite Pass Cut-Off |
3685.00 |
3680.00 |
69.87 Below |
Unusable, use Main Channel |
Blue Notch is unknown and really just shoreline launching at
whatever point feels good. No minimum given except amount of courage it takes to reach this launch. |
Search DB For More Water Data Facts
Measurements are taken at 11:59 pm of the date listed
Temperature data is from Wahweap, AZ Water temperature data is from wayneswords.com*
CHANGE represents water elevation change from previous day
Units used in each measurement:
Elevation - Feet above sea level
Change - Feet difference over previous measurement
Content - Acre Feet
Inflow - Average Cubic Feet / Second over entire 24 hour period
Outflow - Average Cubic Feet / Second over entire 24 hour period
All Temps - Degrees Farhenheit
The Water Year runs from October 1 to September 30 of the next year
Acre Feet = 1.9835 * Flow CFS
TP = Total Precipitation
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