Lake Powell
Lake Powell
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Elevation & Content |
Water Inflow Data |
Glen Canyon Dam Release Data | Lake Powell is 128.18 feet below Full Pool (Elevation 3,700)
By content, Lake Powell is 38.05% of Full Pool (24,322,000 af)
| Total inflows for water year 2021: 1,185,203 acre feet
This is 45.11% of the February 26th average of 2,627,144 acre feet | Total releases for water year 2021: 3,393,489 acre feet
This is 45.25% of the minimum required of 7,500,000 acre feet |
During WY 2021, water storage has fallen by 2,101,555 AF and total outflows have exceeded total inflows by 2,208,286 AF |
The 28 tracked reservoirs above Lake Powell are currently at 69.93% of capacity. Click for Details |
Inflows for WY 2021 are 56.28% of WY 2020  
Rivers feeding Lake Powell are running at 60.18% of the Feb 27th avg. Click for Details
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Lake Powell is down -31.15 feet from one year ago. Lake Powell is at low for water year and down 24.01 feet from the high.
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View Acre Feet
Last 14 Measurements Lake Powell is down -2.29 feet over these measurements
DATE MEASURED |
ELEVATION |
CHANGE |
CONTENT |
INFLOW (cfs) |
OUTFLOW (cfs) |
HIGH TEMP |
LOW TEMP |
WATER TEMP |
Fri, Feb 26, 2021 |
3571.82 |
-0.18 |
9254982 |
-198 |
12147 |
57.0 |
29.0 |
n/a |
Thu, Feb 25, 2021 |
3572.00 |
-0.30 |
9269697 |
-1286 |
11965 |
50.0 |
34.0 |
n/a |
Wed, Feb 24, 2021 |
3572.30 |
-0.13 |
9294256 |
7117 |
12798 |
65.0 |
34.0 |
47.0 |
Tue, Feb 23, 2021 |
3572.43 |
-0.14 |
9304912 |
5981 |
12113 |
61.0 |
33.0 |
47.0 |
Mon, Feb 22, 2021 |
3572.57 |
-0.19 |
9316397 |
4128 |
12501 |
55.0 |
31.0 |
47.0 |
Sun, Feb 21, 2021 |
3572.76 |
-0.10 |
9331999 |
6872 |
11225 |
54.0 |
35.0 |
47.0 |
Sat, Feb 20, 2021 |
3572.86 |
-0.21 |
9340217 |
2682 |
11966 |
58.0 |
31.0 |
47.0 |
Fri, Feb 19, 2021 |
3573.07 |
-0.17 |
9357492 |
4714 |
12214 |
54.0 |
29.0 |
47.0 |
Thu, Feb 18, 2021 |
3573.24 |
-0.21 |
9371492 |
3124 |
12428 |
46.0 |
29.0 |
47.0 |
Wed, Feb 17, 2021 |
3573.45 |
-0.17 |
9388805 |
4991 |
12508 |
44.0 |
34.0 |
46.0 |
Tue, Feb 16, 2021 |
3573.62 |
-0.16 |
9402836 |
5328 |
12403 |
53.0 |
39.0 |
46.0 |
Mon, Feb 15, 2021 |
3573.78 |
-0.20 |
9416055 |
3468 |
12351 |
53.0 |
31.0 |
46.0 |
Sun, Feb 14, 2021 |
3573.98 |
-0.13 |
9432595 |
5695 |
11431 |
52.0 |
38.0 |
46.0 |
Sat, Feb 13, 2021 |
3574.11 |
-0.17 |
9443357 |
4643 |
12190 |
48.0 |
35.0 |
47.0 |
Averages of List |
3573.00 |
-0.18 |
9351792 |
4090 |
12160 |
53.6 |
33.0 |
46.7 |
Averages for February 27th
AVERAGE TYPE |
ELEVATION |
CHANGE |
CONTENT |
INFLOW (cfs) |
OUTFLOW (cfs) |
HIGH TEMP |
LOW TEMP |
WATER TEMP |
Since Filled |
3634.16 |
-0.07 |
15763471 |
8901 |
13097 |
56.2 |
34.7 |
47.8 |
All-Time |
3619.46 |
-0.04 |
14544311 |
9339 |
11835 |
56.5 |
34.5 |
47.8 |
Last 10 February 27th's data records
DATE MEASURED |
ELEVATION |
CHG vs TODAY |
CONTENT |
INFLOW (cfs) |
OUTFLOW (cfs) |
HIGH TEMP |
LOW TEMP |
WATER TEMP |
Thu, Feb 27, 2020 |
3602.90 |
31.08 |
12028914 |
8800 |
12345 |
58.0 |
31.0 |
47.0 |
Wed, Feb 27, 2019 |
3572.10 |
0.28 |
9277878 |
4740 |
13090 |
60.0 |
36.0 |
45.0 |
Tue, Feb 27, 2018 |
3616.12 |
44.30 |
13356198 |
3794 |
13244 |
57.0 |
30.0 |
47.0 |
Mon, Feb 27, 2017 |
3594.28 |
22.46 |
11212412 |
12392 |
10734 |
54.0 |
37.0 |
49.0 |
Sat, Feb 27, 2016 |
3594.46 |
22.64 |
11229089 |
8536 |
11930 |
64.9 |
39.9 |
50.0 |
Fri, Feb 27, 2015 |
3592.26 |
20.44 |
11026337 |
8020 |
11370 |
44.0 |
37.0 |
49.0 |
Thu, Feb 27, 2014 |
3575.65 |
3.83 |
9571466 |
7585 |
11101 |
55.9 |
44.1 |
48.0 |
Wed, Feb 27, 2013 |
3601.59 |
29.77 |
11902407 |
4308 |
10968 |
46.0 |
25.0 |
43.0 |
Mon, Feb 27, 2012 |
3635.38 |
63.56 |
15464126 |
6641 |
11473 |
57.9 |
30.9 |
49.0 |
Sun, Feb 27, 2011 |
3615.10 |
43.28 |
13250511 |
7419 |
15630 |
46.0 |
33.1 |
45.0 |
Averages of List |
3599.98 |
-0.10 |
11831934 |
7224 |
12189 |
54.4 |
34.4 |
47.2 |
Accessibility of Primitive Launches and Other Sites
As of Friday, February 26th, 2021 where elevation was 3571.82'
SITE/LAUNCH NAME |
MINIMUM SAFE ELEVATION |
ABSOLUTE MINIMUM USABLE ELEVATION |
CURRENT LEVEL VS. ABSOLUTE MINIMUM |
CURRENT ACCESSIBILITY |
Halls Crossing Launch |
3550.00 |
3548.00 |
23.82 Above |
Open and Usable |
Wahweap |
3558.00 |
3556.00 |
15.82 Above |
Open and Usable |
Bullfrog (Main Launch) |
3578.00 |
3576.00 |
4.18 Below |
Unusable, go to main marinas |
Castle Rock Cut-Off |
3583.00 |
3580.00 |
8.18 Below |
Unusable, use Main Channel |
Antelope Point |
3588.00 |
3587.00 |
15.18 Below |
Unusable, go to main marinas |
Dominguez Butte Cut-Off |
3602.00 |
3600.00 |
28.18 Below |
Unusable, go to main marinas |
Gunsight to Padre Bay Cut-Off |
3613.00 |
3609.00 |
37.18 Below |
Unusable, go to main marinas |
Hite Marina |
3650.00 |
3645.00 |
73.18 Below |
Unusable, go to main marinas |
Farley Canyon |
3653.00 |
3649.00 |
77.18 Below |
Unusable, go to main marinas |
Copper Canyon |
3663.00 |
3660.00 |
88.18 Below |
Unusable, go to main marinas |
Bullfrog to Halls Creek Cut-Off |
3670.00 |
3668.00 |
96.18 Below |
Unusable, use Main Channel |
Piute Farms |
3682.00 |
3680.00 |
108.18 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 1.311 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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