Lake Powell
Lake Powell
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Elevation & Content |
Water Inflow Data |
Glen Canyon Dam Release Data | Lake Powell is 128.34 feet below Full Pool (Elevation 3,700)
By content, Lake Powell is 38% of Full Pool (24,322,000 af)
| Total inflows for water year 2021: 1,195,069 acre feet
This is 45.17% of the February 27th average of 2,645,668 acre feet | Total releases for water year 2021: 3,417,227 acre feet
This is 45.56% of the minimum required of 7,500,000 acre feet |
During WY 2021, water storage has fallen by 2,114,622 AF and total outflows have exceeded total inflows by 2,222,158 AF |
The 28 tracked reservoirs above Lake Powell are currently at 69.92% of capacity. Click for Details |
Inflows for WY 2021 are 56.28% of WY 2020  
Rivers feeding Lake Powell are running at 59.54% of the Feb 28th avg. Click for Details
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Lake Powell is down -31.24 feet from one year ago. Lake Powell is at low for water year and down 24.17 feet from the high.
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View Acre Feet
Last 14 Measurements Lake Powell is down -2.32 feet over these measurements
DATE MEASURED |
ELEVATION |
CHANGE |
CONTENT |
INFLOW (cfs) |
OUTFLOW (cfs) |
HIGH TEMP |
LOW TEMP |
WATER TEMP |
Sat, Feb 27, 2021 |
3571.66 |
-0.16 |
9241915 |
4974 |
11968 |
n/a |
n/a |
n/a |
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 |
Averages of List |
3572.82 |
-0.17 |
9337404 |
4114 |
12144 |
54.0 |
32.8 |
46.6 |
Averages for February 28th
AVERAGE TYPE |
ELEVATION |
CHANGE |
CONTENT |
INFLOW (cfs) |
OUTFLOW (cfs) |
HIGH TEMP |
LOW TEMP |
WATER TEMP |
Since Filled |
3634.09 |
-0.07 |
15755584 |
9295 |
13389 |
56.5 |
35.7 |
48.0 |
All-Time |
3619.42 |
-0.04 |
14539229 |
9626 |
12128 |
57.0 |
35.4 |
48.0 |
Last 10 February 28th's data records
DATE MEASURED |
ELEVATION |
CHG vs TODAY |
CONTENT |
INFLOW (cfs) |
OUTFLOW (cfs) |
HIGH TEMP |
LOW TEMP |
WATER TEMP |
Fri, Feb 28, 2020 |
3602.80 |
31.14 |
12019225 |
7128 |
12254 |
57.0 |
33.0 |
47.0 |
Thu, Feb 28, 2019 |
3571.89 |
0.23 |
9260702 |
5784 |
15015 |
64.0 |
41.0 |
46.0 |
Wed, Feb 28, 2018 |
3616.02 |
44.36 |
13345812 |
7456 |
12940 |
55.0 |
33.0 |
47.0 |
Tue, Feb 28, 2017 |
3594.33 |
22.67 |
11217043 |
14046 |
11379 |
51.0 |
39.0 |
48.0 |
Sun, Feb 28, 2016 |
3594.48 |
22.82 |
11230943 |
11880 |
10730 |
70.0 |
48.0 |
50.0 |
Sat, Feb 28, 2015 |
3592.23 |
20.57 |
11023589 |
9797 |
11151 |
46.0 |
33.0 |
49.0 |
Fri, Feb 28, 2014 |
3575.55 |
3.89 |
9563112 |
6647 |
11070 |
54.0 |
39.0 |
48.0 |
Thu, Feb 28, 2013 |
3601.47 |
29.81 |
11890863 |
4858 |
10991 |
52.0 |
n/a |
45.0 |
Tue, Feb 28, 2012 |
3635.33 |
63.67 |
15458364 |
8487 |
11435 |
48.0 |
33.8 |
49.0 |
Mon, Feb 28, 2011 |
3614.95 |
43.29 |
13235015 |
7462 |
15651 |
48.9 |
28.9 |
45.0 |
Averages of List |
3599.91 |
-0.08 |
11824467 |
8355 |
12262 |
54.6 |
36.5 |
47.4 |
Accessibility of Primitive Launches and Other Sites
As of Saturday, February 27th, 2021 where elevation was 3571.66'
SITE/LAUNCH NAME |
MINIMUM SAFE ELEVATION |
ABSOLUTE MINIMUM USABLE ELEVATION |
CURRENT LEVEL VS. ABSOLUTE MINIMUM |
CURRENT ACCESSIBILITY |
Halls Crossing Launch |
3550.00 |
3548.00 |
23.66 Above |
Open and Usable |
Wahweap |
3558.00 |
3556.00 |
15.66 Above |
Open and Usable |
Bullfrog (Main Launch) |
3578.00 |
3576.00 |
4.34 Below |
Unusable, go to main marinas |
Castle Rock Cut-Off |
3583.00 |
3580.00 |
8.34 Below |
Unusable, use Main Channel |
Antelope Point |
3588.00 |
3587.00 |
15.34 Below |
Unusable, go to main marinas |
Dominguez Butte Cut-Off |
3602.00 |
3600.00 |
28.34 Below |
Unusable, go to main marinas |
Gunsight to Padre Bay Cut-Off |
3613.00 |
3609.00 |
37.34 Below |
Unusable, go to main marinas |
Hite Marina |
3650.00 |
3645.00 |
73.34 Below |
Unusable, go to main marinas |
Farley Canyon |
3653.00 |
3649.00 |
77.34 Below |
Unusable, go to main marinas |
Copper Canyon |
3663.00 |
3660.00 |
88.34 Below |
Unusable, go to main marinas |
Bullfrog to Halls Creek Cut-Off |
3670.00 |
3668.00 |
96.34 Below |
Unusable, use Main Channel |
Piute Farms |
3682.00 |
3680.00 |
108.34 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 1.249 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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