Lake Powell
Lake Powell
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Elevation & Content |
Water Inflow Data |
Glen Canyon Dam Release Data | Lake Powell is 134.74 feet below Full Pool (Elevation 3,700)
By content, Lake Powell is 35.89% of Full Pool (24,322,000 af)
| Total inflows for water year 2021: 1,642,398 acre feet
This is 46.34% of the April 11th average of 3,544,610 acre feet | Total releases for water year 2021: 4,400,125 acre feet
This is 58.67% of the minimum required of 7,500,000 acre feet |
During WY 2021, water storage has fallen by 2,627,122 AF and total outflows have exceeded total inflows by 2,757,727 AF |
The 28 tracked reservoirs above Lake Powell are currently at 70.47% of capacity. Click for Details |
Inflows for WY 2021 are 58.32% of WY 2020  
Rivers feeding Lake Powell are running at 33.16% of the Apr 12th avg. Click for Details
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Lake Powell is down -34.81 feet from one year ago. Lake Powell is at low for water year and down 30.57 feet from the high.
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View Acre Feet
Last 14 Measurements Lake Powell is down -1.87 feet over these measurements
DATE MEASURED |
ELEVATION |
CHANGE |
CONTENT |
INFLOW (cfs) |
OUTFLOW (cfs) |
HIGH TEMP |
LOW TEMP |
WATER TEMP |
Sun, Apr 11, 2021 |
3565.26 |
-0.06 |
8729415 |
7827 |
10100 |
79.0 |
51.0 |
n/a |
Sat, Apr 10, 2021 |
3565.32 |
-0.13 |
8734127 |
5543 |
10813 |
78.0 |
49.0 |
n/a |
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 |
Averages of List |
3566.11 |
-0.14 |
8796081 |
5088 |
10902 |
75.5 |
48.6 |
52.7 |
Averages for April 12th
AVERAGE TYPE |
ELEVATION |
CHANGE |
CONTENT |
INFLOW (cfs) |
OUTFLOW (cfs) |
HIGH TEMP |
LOW TEMP |
WATER TEMP |
Since Filled |
3632.90 |
0.01 |
15628086 |
12643 |
12676 |
71.4 |
44.9 |
55.0 |
All-Time |
3618.49 |
-0.01 |
14464432 |
12257 |
12524 |
71.3 |
44.4 |
55.0 |
Last 10 April 12th's data records
DATE MEASURED |
ELEVATION |
CHG vs TODAY |
CONTENT |
INFLOW (cfs) |
OUTFLOW (cfs) |
HIGH TEMP |
LOW TEMP |
WATER TEMP |
Sun, Apr 12, 2020 |
3600.15 |
34.89 |
11764389 |
13699 |
9157 |
69.0 |
54.0 |
55.0 |
Fri, Apr 12, 2019 |
3568.58 |
3.32 |
8992798 |
13634 |
12460 |
62.0 |
40.0 |
55.0 |
Thu, Apr 12, 2018 |
3611.05 |
45.79 |
12836281 |
5338 |
12089 |
73.0 |
44.0 |
54.0 |
Wed, Apr 12, 2017 |
3598.74 |
33.48 |
11630273 |
22993 |
10751 |
75.0 |
48.0 |
54.0 |
Tue, Apr 12, 2016 |
3591.20 |
25.94 |
10929487 |
9431 |
11551 |
73.9 |
46.9 |
58.0 |
Sun, Apr 12, 2015 |
3590.90 |
25.64 |
10902176 |
9998 |
9144 |
75.0 |
50.0 |
56.0 |
Sat, Apr 12, 2014 |
3574.21 |
8.95 |
9451641 |
6338 |
7827 |
75.9 |
61.0 |
54.0 |
Fri, Apr 12, 2013 |
3597.83 |
32.57 |
11544229 |
5908 |
9641 |
70.0 |
45.0 |
53.0 |
Thu, Apr 12, 2012 |
3635.81 |
70.55 |
15513740 |
8150 |
10801 |
64.0 |
50.0 |
54.0 |
Tue, Apr 12, 2011 |
3609.76 |
44.50 |
12706157 |
13598 |
15438 |
71.1 |
46.0 |
51.0 |
Averages of List |
3597.82 |
0.00 |
11627117 |
10909 |
10886 |
70.9 |
48.5 |
54.4 |
Accessibility of Primitive Launches and Other Sites
As of Sunday, April 11th, 2021 where elevation was 3565.26'
SITE/LAUNCH NAME |
MINIMUM SAFE ELEVATION |
ABSOLUTE MINIMUM USABLE ELEVATION |
CURRENT LEVEL VS. ABSOLUTE MINIMUM |
CURRENT ACCESSIBILITY |
Halls Crossing Launch |
3550.00 |
3548.00 |
17.26 Above |
Open and Usable |
Wahweap |
3558.00 |
3556.00 |
9.26 Above |
Open and Usable |
Bullfrog (Main Launch) |
3578.00 |
3576.00 |
10.74 Below |
Unusable, go to main marinas |
Castle Rock Cut-Off |
3583.00 |
3580.00 |
14.74 Below |
Unusable, use Main Channel |
Antelope Point |
3588.00 |
3587.00 |
21.74 Below |
Unusable, go to main marinas |
Dominguez Butte Cut-Off |
3602.00 |
3600.00 |
34.74 Below |
Unusable, go to main marinas |
Gunsight to Padre Bay Cut-Off |
3613.00 |
3609.00 |
43.74 Below |
Unusable, go to main marinas |
Hite Marina |
3650.00 |
3645.00 |
79.74 Below |
Unusable, go to main marinas |
Farley Canyon |
3653.00 |
3649.00 |
83.74 Below |
Unusable, go to main marinas |
Copper Canyon |
3663.00 |
3660.00 |
94.74 Below |
Unusable, go to main marinas |
Bullfrog to Halls Creek Cut-Off |
3670.00 |
3668.00 |
102.74 Below |
Unusable, use Main Channel |
Piute Farms |
3682.00 |
3680.00 |
114.74 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 1.023 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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