Lake Powell
Lake Powell
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| Elevation & Content |
Water Inflow Data |
Glen Canyon Dam Release Data | Lake Powell is 134.55 feet below Full Pool (Elevation 3,700)
By content, Lake Powell is 35.95% of Full Pool (24,322,000 af)
| Total inflows for water year 2021: 1,615,878 acre feet
This is 46.2% of the April 9th average of 3,497,876 acre feet | Total releases for water year 2021: 4,358,644 acre feet
This is 58.12% of the minimum required of 7,500,000 acre feet |
| During WY 2021, water storage has fallen by 2,612,193 AF and total outflows have exceeded total inflows by 2,742,766 AF |
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The 28 tracked reservoirs above Lake Powell are currently at 70.41% of capacity. Click for Details |
| Inflows for WY 2021 are 58.14% of WY 2020
Rivers feeding Lake Powell are running at 34.22% of the Apr 10th avg. Click for Details
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Lake Powell is down -34.82 feet from one year ago. Lake Powell is at low for water year and down 30.38 feet from the high.
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View Acre Feet
Last 14 Measurements
Lake Powell is down -1.94 feet over these measurements
| DATE MEASURED |
ELEVATION |
CHANGE |
CONTENT |
INFLOW (cfs) |
OUTFLOW (cfs) |
HIGH TEMP |
LOW TEMP |
WATER TEMP |
| Fri, Apr 09, 2021 |
3565.45 |
-0.17 |
8744344 |
4199 |
11187 |
76.0 |
54.0 |
55.0 |
| Thu, Apr 08, 2021 |
3565.62 |
-0.11 |
8757716 |
6268 |
10690 |
79.0 |
50.0 |
55.0 |
| Wed, Apr 07, 2021 |
3565.73 |
-0.14 |
8766377 |
4696 |
10408 |
77.0 |
45.0 |
55.0 |
| Tue, Apr 06, 2021 |
3565.87 |
-0.13 |
8777407 |
5776 |
11063 |
70.0 |
53.0 |
55.0 |
| Mon, Apr 05, 2021 |
3566.00 |
-0.15 |
8787658 |
4838 |
10989 |
86.0 |
60.0 |
54.0 |
| Sun, Apr 04, 2021 |
3566.15 |
-0.15 |
8799497 |
3468 |
9625 |
86.0 |
57.0 |
54.0 |
| Sat, Apr 03, 2021 |
3566.30 |
-0.15 |
8811346 |
4085 |
10247 |
84.0 |
52.0 |
53.0 |
| Fri, Apr 02, 2021 |
3566.45 |
-0.15 |
8823206 |
993 |
7161 |
79.0 |
51.0 |
52.0 |
| Thu, Apr 01, 2021 |
3566.60 |
-0.11 |
8835078 |
6684 |
11132 |
67.0 |
36.0 |
51.0 |
| Wed, Mar 31, 2021 |
3566.71 |
-0.18 |
8843790 |
4793 |
12383 |
60.0 |
36.0 |
50.0 |
| Tue, Mar 30, 2021 |
3566.89 |
-0.24 |
8858059 |
3468 |
13661 |
60.0 |
42.0 |
49.0 |
| Mon, Mar 29, 2021 |
3567.13 |
-0.11 |
8877110 |
8596 |
13175 |
76.0 |
45.0 |
49.0 |
| Sun, Mar 28, 2021 |
3567.24 |
-0.15 |
8885850 |
7511 |
13826 |
68.0 |
40.0 |
49.0 |
| Sat, Mar 27, 2021 |
3567.39 |
-0.14 |
8897779 |
12013 |
17900 |
59.0 |
35.0 |
48.0 |
| Averages of List |
3566.40 |
-0.15 |
8818944 |
5528 |
11675 |
73.4 |
46.9 |
52.1 |
Averages for April 10th
| AVERAGE TYPE |
ELEVATION |
CHANGE |
CONTENT |
INFLOW (cfs) |
OUTFLOW (cfs) |
HIGH TEMP |
LOW TEMP |
WATER TEMP |
| Since Filled |
3632.87 |
0.01 |
15625553 |
11702 |
12422 |
69.9 |
44.6 |
54.0 |
| All-Time |
3618.52 |
-0.00 |
14464511 |
11606 |
12274 |
70.2 |
44.1 |
54.0 |
Last 10 April 10th's data records
| DATE MEASURED |
ELEVATION |
CHG vs TODAY |
CONTENT |
INFLOW (cfs) |
OUTFLOW (cfs) |
HIGH TEMP |
LOW TEMP |
WATER TEMP |
| Fri, Apr 10, 2020 |
3600.19 |
34.74 |
11768208 |
7339 |
11115 |
68.0 |
42.0 |
55.0 |
| Wed, Apr 10, 2019 |
3568.51 |
3.06 |
8987190 |
6412 |
11782 |
58.0 |
46.0 |
54.0 |
| Tue, Apr 10, 2018 |
3611.29 |
45.84 |
12860587 |
6193 |
12400 |
75.0 |
48.0 |
54.0 |
| Mon, Apr 10, 2017 |
3598.33 |
32.88 |
11591456 |
20973 |
10815 |
64.0 |
39.0 |
53.0 |
| Sun, Apr 10, 2016 |
3591.32 |
25.87 |
10940424 |
9493 |
10126 |
69.1 |
51.1 |
57.0 |
| Fri, Apr 10, 2015 |
3590.95 |
25.50 |
10906725 |
10631 |
10272 |
71.0 |
42.0 |
55.0 |
| Thu, Apr 10, 2014 |
3574.31 |
8.86 |
9459930 |
8990 |
8674 |
82.9 |
52.0 |
53.0 |
| Wed, Apr 10, 2013 |
3597.99 |
32.54 |
11559329 |
1315 |
9680 |
55.9 |
37.0 |
52.0 |
| Tue, Apr 10, 2012 |
3635.77 |
70.32 |
15509120 |
12838 |
10457 |
82.9 |
52.0 |
54.0 |
| Sun, Apr 10, 2011 |
3609.74 |
44.29 |
12704147 |
13041 |
15884 |
55.9 |
33.1 |
51.0 |
| Averages of List |
3597.84 |
-0.03 |
11628712 |
9723 |
11121 |
68.3 |
44.2 |
53.8 |
Accessibility of Primitive Launches and Other Sites
As of Friday, April 9th, 2021 where elevation was 3565.45'
| SITE/LAUNCH NAME |
MINIMUM SAFE
ELEVATION |
ABSOLUTE MINIMUM
USABLE ELEVATION |
CURRENT LEVEL VS.
ABSOLUTE MINIMUM |
CURRENT ACCESSIBILITY |
| Halls Crossing Launch |
3550.00 |
3548.00 |
17.45 Above |
Open and Usable |
| Wahweap |
3558.00 |
3556.00 |
9.45 Above |
Open and Usable |
| Bullfrog (Main Launch) |
3578.00 |
3576.00 |
10.55 Below |
Unusable, go to main marinas |
| Castle Rock Cut-Off |
3583.00 |
3580.00 |
14.55 Below |
Unusable, use Main Channel |
| Antelope Point |
3588.00 |
3587.00 |
21.55 Below |
Unusable, go to main marinas |
| Dominguez Butte Cut-Off |
3602.00 |
3600.00 |
34.55 Below |
Unusable, go to main marinas |
| Gunsight to Padre Bay Cut-Off |
3613.00 |
3609.00 |
43.55 Below |
Unusable, go to main marinas |
| Hite Marina |
3650.00 |
3645.00 |
79.55 Below |
Unusable, go to main marinas |
| Farley Canyon |
3653.00 |
3649.00 |
83.55 Below |
Unusable, go to main marinas |
| Copper Canyon |
3663.00 |
3660.00 |
94.55 Below |
Unusable, go to main marinas |
| Bullfrog to Halls Creek Cut-Off |
3670.00 |
3668.00 |
102.55 Below |
Unusable, use Main Channel |
| Piute Farms |
3682.00 |
3680.00 |
114.55 Below |
Unusable, go to main marinas |
| 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
Page took 1.076 seconds to create!
Copyright Summit Technologies, Inc.
Water data courtesy of US Bureau of Reclamation
The water year runs from Oct 1 - Sept 30
Since Filled is from 06/22/1980 forward
*Water temp data is provided by Wayne Gustaveson
as measured in the a.m. at the Wahweap docks
*Air temp data is sourced from (Prev 24 Hr Extremes):
Page, AZ Weather
All data is provisional and subject to review and modification
Call 1-800-752-8525 for up-to-date water level infomation
or go to Lake Powell Source Data
USBR Projected Outlook
Current Snowpack Conditions for Upper Colorado Basin
Copyright Summit Technologies, Inc.
1999 - 2021
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