Lake Powell
Lake Powell
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| Elevation & Content |
Water Inflow Data |
Glen Canyon Dam Release Data | Lake Powell is 135.26 feet below Full Pool (Elevation 3,700)
By content, Lake Powell is 35.72% of Full Pool (24,322,000 af)
| Total inflows for water year 2021: 1,668,552 acre feet
This is 46.12% of the April 14th average of 3,618,191 acre feet | Total releases for water year 2021: 4,466,029 acre feet
This is 59.55% of the minimum required of 7,500,000 acre feet |
| During WY 2021, water storage has fallen by 2,667,892 AF and total outflows have exceeded total inflows by 2,797,477 AF |
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The 28 tracked reservoirs above Lake Powell are currently at 70.58% of capacity. Click for Details |
| Inflows for WY 2021 are 58.12% of WY 2020
Rivers feeding Lake Powell are running at 29.38% of the Apr 15th avg. Click for Details
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Lake Powell is down -35.27 feet from one year ago. Lake Powell is at low for water year and down 31.09 feet from the high.
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View Acre Feet
Last 14 Measurements
Lake Powell is down -1.86 feet over these measurements
| DATE MEASURED |
ELEVATION |
CHANGE |
CONTENT |
INFLOW (cfs) |
OUTFLOW (cfs) |
HIGH TEMP |
LOW TEMP |
WATER TEMP |
| Wed, Apr 14, 2021 |
3564.74 |
-0.13 |
8688645 |
5417 |
10669 |
77.0 |
57.0 |
55.0 |
| Tue, Apr 13, 2021 |
3564.87 |
-0.21 |
8698826 |
2577 |
11248 |
77.0 |
58.0 |
56.0 |
| Mon, Apr 12, 2021 |
3565.08 |
-0.18 |
8715287 |
5192 |
11309 |
79.0 |
52.0 |
56.0 |
| Sun, Apr 11, 2021 |
3565.26 |
-0.06 |
8729415 |
7827 |
10100 |
79.0 |
51.0 |
56.0 |
| Sat, Apr 10, 2021 |
3565.32 |
-0.13 |
8734127 |
5543 |
10813 |
78.0 |
49.0 |
55.0 |
| 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 |
| Averages of List |
3565.67 |
-0.14 |
8762066 |
4826 |
10474 |
78.1 |
51.8 |
54.4 |
Averages for April 15th
| AVERAGE TYPE |
ELEVATION |
CHANGE |
CONTENT |
INFLOW (cfs) |
OUTFLOW (cfs) |
HIGH TEMP |
LOW TEMP |
WATER TEMP |
| Since Filled |
3632.97 |
0.03 |
15636531 |
13573 |
12386 |
71.8 |
45.6 |
55.4 |
| All-Time |
3618.50 |
0.02 |
14468687 |
13182 |
12432 |
72.1 |
45.3 |
55.4 |
Last 10 April 15th's data records
| DATE MEASURED |
ELEVATION |
CHG vs TODAY |
CONTENT |
INFLOW (cfs) |
OUTFLOW (cfs) |
HIGH TEMP |
LOW TEMP |
WATER TEMP |
| Wed, Apr 15, 2020 |
3599.96 |
35.22 |
11746260 |
8726 |
10939 |
71.0 |
40.0 |
55.0 |
| Mon, Apr 15, 2019 |
3568.71 |
3.97 |
9003220 |
12880 |
12578 |
77.0 |
52.0 |
55.0 |
| Sun, Apr 15, 2018 |
3610.84 |
46.10 |
12815039 |
7328 |
9666 |
75.0 |
44.0 |
55.0 |
| Sat, Apr 15, 2017 |
3599.39 |
34.65 |
11691979 |
23462 |
9628 |
75.0 |
48.0 |
56.0 |
| Fri, Apr 15, 2016 |
3591.14 |
26.40 |
10924022 |
8845 |
10965 |
57.9 |
43.0 |
57.0 |
| Wed, Apr 15, 2015 |
3590.75 |
26.01 |
10888537 |
10241 |
10376 |
54.0 |
39.0 |
56.0 |
| Tue, Apr 15, 2014 |
3574.37 |
9.63 |
9464905 |
11250 |
8676 |
73.0 |
39.9 |
55.0 |
| Mon, Apr 15, 2013 |
3597.73 |
32.99 |
11534799 |
9044 |
9693 |
75.9 |
55.9 |
54.0 |
| Sun, Apr 15, 2012 |
3635.89 |
71.15 |
15522983 |
15757 |
8972 |
63.0 |
37.9 |
53.0 |
| Fri, Apr 15, 2011 |
3609.84 |
45.10 |
12714201 |
14046 |
15516 |
64.9 |
41.0 |
51.0 |
| Averages of List |
3597.86 |
0.02 |
11630595 |
12158 |
10701 |
68.7 |
44.1 |
54.7 |
Accessibility of Primitive Launches and Other Sites
As of Wednesday, April 14th, 2021 where elevation was 3564.74'
| SITE/LAUNCH NAME |
MINIMUM SAFE
ELEVATION |
ABSOLUTE MINIMUM
USABLE ELEVATION |
CURRENT LEVEL VS.
ABSOLUTE MINIMUM |
CURRENT ACCESSIBILITY |
| Halls Crossing Launch |
3550.00 |
3548.00 |
16.74 Above |
Open and Usable |
| Wahweap |
3558.00 |
3556.00 |
8.74 Above |
Open and Usable |
| Bullfrog (Main Launch) |
3578.00 |
3576.00 |
11.26 Below |
Unusable, go to main marinas |
| Castle Rock Cut-Off |
3583.00 |
3580.00 |
15.26 Below |
Unusable, use Main Channel |
| Antelope Point |
3588.00 |
3587.00 |
22.26 Below |
Unusable, go to main marinas |
| Dominguez Butte Cut-Off |
3602.00 |
3600.00 |
35.26 Below |
Unusable, go to main marinas |
| Gunsight to Padre Bay Cut-Off |
3613.00 |
3609.00 |
44.26 Below |
Unusable, go to main marinas |
| Hite Marina |
3650.00 |
3645.00 |
80.26 Below |
Unusable, go to main marinas |
| Farley Canyon |
3653.00 |
3649.00 |
84.26 Below |
Unusable, go to main marinas |
| Copper Canyon |
3663.00 |
3660.00 |
95.26 Below |
Unusable, go to main marinas |
| Bullfrog to Halls Creek Cut-Off |
3670.00 |
3668.00 |
103.26 Below |
Unusable, use Main Channel |
| Piute Farms |
3682.00 |
3680.00 |
115.26 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 1.372 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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