Lake Powell
Lake Powell
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Elevation & Content |
Water Inflow Data |
Glen Canyon Dam Release Data | Lake Powell is 89.54 feet below Full Pool (Elevation 3,700)
By content, Lake Powell is 52.53% of Full Pool (24,322,000 af)
| Total inflows for water year 2018: 2,900,071 acre feet
This is 75.83% of the April 19th average of 3,824,617 acre feet | Total releases for water year 2018: 4,836,059 acre feet
This is 58.76% of the minimum required of 8,230,000 acre feet |
During WY 2018, water storage has fallen by 1,898,879 AF and total outflows have exceeded total inflows by 1,935,988 AF |
The 28 tracked reservoirs above Lake Powell are currently at 76.93% of capacity. Click for Details |
Inflows for WY 2018 are 72.48% of WY 2017  
Rivers feeding Lake Powell are running at 41.37% of the Apr 20th avg. Click for Details
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Powell is up 9.96 feet from one year ago
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View Acre Feet
Last 14 Measurements Powell is down -1.19 feet over these measurements
DATE MEASURED |
ELEVATION |
CHANGE |
CONTENT |
INFLOW (cfs) |
OUTFLOW (cfs) |
HIGH TEMP |
LOW TEMP |
WATER TEMP |
Thu, Apr 19, 2018 |
3610.46 |
-0.10 |
12776658 |
7235 |
12317 |
73.0 |
46.0 |
n/a |
Wed, Apr 18, 2018 |
3610.56 |
-0.12 |
12786751 |
6504 |
12688 |
64.0 |
37.0 |
n/a |
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 |
Mon, Apr 09, 2018 |
3611.41 |
-0.12 |
12872752 |
6064 |
12275 |
70.0 |
50.0 |
54.0 |
Sun, Apr 08, 2018 |
3611.53 |
-0.07 |
12884924 |
6440 |
9891 |
73.0 |
57.0 |
54.0 |
Sat, Apr 07, 2018 |
3611.60 |
-0.05 |
12892027 |
9788 |
12135 |
87.0 |
57.0 |
54.0 |
Fri, Apr 06, 2018 |
3611.65 |
-0.11 |
12897103 |
6312 |
11977 |
82.0 |
60.0 |
53.0 |
Averages of List |
3611.06 |
-0.09 |
12837475.29 |
7105.21 |
11808.57 |
73.43 |
48.07 |
54.0 |
Averages for April 20th
AVERAGE TYPE |
ELEVATION |
CHANGE |
CONTENT |
INFLOW (cfs) |
OUTFLOW (cfs) |
HIGH TEMP |
LOW TEMP |
WATER TEMP |
Since Filled |
3636.49 |
0.08 |
16030120.22 |
15765.19 |
12448.59 |
73.09 |
47.21 |
56.2 |
All-Time |
3620.09 |
0.06 |
14676823.98 |
15241.87 |
12368.87 |
71.87 |
45.77 |
56.2 |
Last 10 April 20th's data records
DATE MEASURED |
ELEVATION |
CHANGE |
CONTENT |
INFLOW (cfs) |
OUTFLOW (cfs) |
HIGH TEMP |
LOW TEMP |
WATER TEMP |
Thu, Apr 20, 2017 |
3600.87 |
0.37 |
11833261 |
30758 |
11082 |
80.0 |
51.0 |
57.0 |
Wed, Apr 20, 2016 |
3591.44 |
0.09 |
10951368 |
16331 |
11500 |
82.0 |
52.0 |
58.0 |
Mon, Apr 20, 2015 |
3590.53 |
-0.06 |
10868553 |
7769 |
10377 |
81.0 |
48.0 |
57.0 |
Sun, Apr 20, 2014 |
3574.93 |
0.15 |
9511428 |
14623 |
7511 |
79.0 |
53.1 |
57.0 |
Sat, Apr 20, 2013 |
3597.26 |
-0.06 |
11490539 |
5889 |
8586 |
71.1 |
53.1 |
54.0 |
Fri, Apr 20, 2012 |
3635.93 |
0.01 |
15527606 |
11607 |
10483 |
79.0 |
53.1 |
56.0 |
Wed, Apr 20, 2011 |
3610.05 |
0.05 |
12735334 |
16110 |
14747 |
79.0 |
51.1 |
54.0 |
Tue, Apr 20, 2010 |
3618.96 |
0.18 |
13653354 |
15862 |
9407 |
77.0 |
52.0 |
60.0 |
Mon, Apr 20, 2009 |
3609.79 |
0.05 |
12709173 |
10933 |
10413 |
81.0 |
48.9 |
54.0 |
Sun, Apr 20, 2008 |
3591.67 |
0.11 |
10972356 |
15417 |
11059 |
73.0 |
51.1 |
53.0 |
Averages of List |
3602.14 |
0.09 |
12025297.20 |
14529.90 |
10516.50 |
78.21 |
51.34 |
56.0 |
Accessibility of Primitive Launches and Other Sites
As of Thursday, April 19th, 2018 where elevation was 3610.46'
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 |
30.46 Above |
Open and Usable |
Antelope Point |
3592.00 |
3590.00 |
20.46 Above |
Open and Usable |
Hite Marina |
3650.00 |
3645.00 |
34.54 Below |
Unusable, go to main marinas |
Farley Canyon |
3653.00 |
3649.00 |
38.54 Below |
Unusable, go to main marinas |
Copper Canyon |
3663.00 |
3660.00 |
49.54 Below |
Unusable, go to main marinas |
Bullfrog to Halls Creek Cut-Off |
3670.00 |
3668.00 |
57.54 Below |
Unusable, use Main Channel |
Piute Farms |
3682.00 |
3680.00 |
69.54 Below |
Unusable, go to main marinas |
Gunsite Pass Cut-Off |
3685.00 |
3680.00 |
69.54 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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