Lake Powell
Lake Powell
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| Elevation & Content |
Water Inflow Data |
Glen Canyon Dam Release Data | Lake Powell is 121.41 feet below Full Pool (Elevation 3,700)
By content, Lake Powell is 40.37% of Full Pool (24,322,000 af)
| Total inflows for water year 2021: 873,184 acre feet
This is 44.17% of the January 19th average of 1,976,749 acre feet | Total releases for water year 2021: 2,466,635 acre feet
This is 32.89% of the minimum required of 7,500,000 acre feet |
| During WY 2021, water storage has fallen by 1,537,311 AF and total outflows have exceeded total inflows by 1,593,451 AF |
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The 28 tracked reservoirs above Lake Powell are currently at 70.23% of capacity. Click for Details |
| Inflows for WY 2021 are 53.86% of WY 2020
Rivers feeding Lake Powell are running at 84.48% of the Jan 11th avg. Click for Details
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Lake Powell is down -28.11 feet from one year ago. Lake Powell is at low for water year and down 17.24 feet from the high.
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View Acre Feet
Last 14 Measurements
Lake Powell is down -2.56 feet over these measurements
| DATE MEASURED |
ELEVATION |
CHANGE |
CONTENT |
INFLOW (cfs) |
OUTFLOW (cfs) |
HIGH TEMP |
LOW TEMP |
WATER TEMP |
| Tue, Jan 19, 2021 |
3578.59 |
-0.25 |
9819226 |
1702 |
13172 |
0.0 |
0.0 |
47.0 |
| Mon, Jan 18, 2021 |
3578.84 |
-0.17 |
9840487 |
5512 |
13286 |
54.0 |
32.0 |
48.0 |
| Sun, Jan 17, 2021 |
3579.01 |
-0.13 |
9854962 |
4806 |
10730 |
53.0 |
28.0 |
48.0 |
| Sat, Jan 16, 2021 |
3579.14 |
-0.17 |
9866040 |
3805 |
11593 |
56.0 |
30.0 |
48.0 |
| Fri, Jan 15, 2021 |
3579.31 |
-0.24 |
9880540 |
2130 |
13180 |
50.0 |
28.0 |
48.0 |
| Thu, Jan 14, 2021 |
3579.55 |
-0.20 |
9901034 |
3417 |
12619 |
50.0 |
26.0 |
48.0 |
| Wed, Jan 13, 2021 |
3579.75 |
-0.21 |
9918133 |
3701 |
13381 |
43.0 |
23.0 |
47.0 |
| Tue, Jan 12, 2021 |
3579.96 |
-0.21 |
9936109 |
3547 |
13237 |
42.0 |
20.0 |
48.0 |
| Mon, Jan 11, 2021 |
3580.17 |
-0.26 |
9954105 |
1118 |
13158 |
44.0 |
22.0 |
48.0 |
| Sun, Jan 10, 2021 |
3580.43 |
-0.13 |
9976417 |
4702 |
10674 |
43.0 |
26.0 |
48.0 |
| Sat, Jan 09, 2021 |
3580.56 |
-0.18 |
9987585 |
3102 |
11420 |
49.0 |
24.0 |
47.0 |
| Fri, Jan 08, 2021 |
3580.74 |
-0.20 |
10003062 |
3828 |
13092 |
44.0 |
26.0 |
48.0 |
| Thu, Jan 07, 2021 |
3580.94 |
-0.21 |
10020277 |
3405 |
13149 |
47.0 |
26.0 |
48.0 |
| Wed, Jan 06, 2021 |
3581.15 |
-0.20 |
10038373 |
3904 |
13190 |
46.0 |
27.0 |
48.0 |
| Averages of List |
3579.87 |
-0.20 |
9928311 |
3477 |
12563 |
44.4 |
24.1 |
47.8 |
Averages for January 20th
| AVERAGE TYPE |
ELEVATION |
CHANGE |
CONTENT |
INFLOW (cfs) |
OUTFLOW (cfs) |
HIGH TEMP |
LOW TEMP |
WATER TEMP |
| Since Filled |
3637.77 |
-0.13 |
16179450 |
7481 |
14868 |
48.7 |
28.6 |
47.9 |
| All-Time |
3622.07 |
-0.10 |
14846712 |
8257 |
13819 |
48.3 |
28.9 |
47.9 |
Last 10 January 20th's data records
| DATE MEASURED |
ELEVATION |
CHG vs TODAY |
CONTENT |
INFLOW (cfs) |
OUTFLOW (cfs) |
HIGH TEMP |
LOW TEMP |
WATER TEMP |
| Mon, Jan 20, 2020 |
3606.57 |
27.98 |
12388144 |
6086 |
12953 |
43.0 |
32.0 |
47.0 |
| Sun, Jan 20, 2019 |
3578.11 |
-0.48 |
9778489 |
7155 |
10741 |
47.0 |
30.0 |
47.0 |
| Sat, Jan 20, 2018 |
3620.52 |
41.93 |
13818400 |
0 |
13369 |
53.0 |
36.0 |
50.0 |
| Fri, Jan 20, 2017 |
3597.42 |
18.83 |
11505594 |
8901 |
15442 |
41.0 |
34.0 |
49.0 |
| Wed, Jan 20, 2016 |
3597.94 |
19.35 |
11554609 |
5964 |
14580 |
54.0 |
36.0 |
47.0 |
| Tue, Jan 20, 2015 |
3594.92 |
16.33 |
11271780 |
5555 |
14544 |
46.0 |
32.0 |
48.0 |
| Mon, Jan 20, 2014 |
3580.75 |
2.16 |
10003922 |
5578 |
13436 |
52.0 |
28.9 |
45.0 |
| Sun, Jan 20, 2013 |
3606.03 |
27.44 |
12334842 |
2988 |
12521 |
43.0 |
23.0 |
44.0 |
| Fri, Jan 20, 2012 |
3637.69 |
59.10 |
15731978 |
10830 |
13205 |
57.0 |
36.0 |
49.0 |
| Thu, Jan 20, 2011 |
3622.63 |
44.04 |
14043925 |
6883 |
17266 |
45.0 |
28.9 |
48.0 |
| Averages of List |
3604.26 |
-0.14 |
12243168 |
5994 |
13806 |
48.1 |
31.7 |
47.4 |
Accessibility of Primitive Launches and Other Sites
As of Tuesday, January 19th, 2021 where elevation was 3578.59'
| SITE/LAUNCH NAME |
MINIMUM SAFE
ELEVATION |
ABSOLUTE MINIMUM
USABLE ELEVATION |
CURRENT LEVEL VS.
ABSOLUTE MINIMUM |
CURRENT ACCESSIBILITY |
| Halls Crossing Launch |
3550.00 |
3548.00 |
30.59 Above |
Open and Usable |
| Wahweap |
3558.00 |
3556.00 |
22.59 Above |
Open and Usable |
| Bullfrog (Main Launch) |
3578.00 |
3576.00 |
2.59 Above |
Open and Usable |
| Castle Rock Cut-Off |
3583.00 |
3580.00 |
1.41 Below |
Unusable, use Main Channel |
| Antelope Point |
3588.00 |
3587.00 |
8.41 Below |
Unusable, go to main marinas |
| Dominguez Butte Cut-Off |
3602.00 |
3600.00 |
21.41 Below |
Unusable, go to main marinas |
| Gunsight to Padre Bay Cut-Off |
3613.00 |
3609.00 |
30.41 Below |
Unusable, go to main marinas |
| Hite Marina |
3650.00 |
3645.00 |
66.41 Below |
Unusable, go to main marinas |
| Farley Canyon |
3653.00 |
3649.00 |
70.41 Below |
Unusable, go to main marinas |
| Copper Canyon |
3663.00 |
3660.00 |
81.41 Below |
Unusable, go to main marinas |
| Bullfrog to Halls Creek Cut-Off |
3670.00 |
3668.00 |
89.41 Below |
Unusable, use Main Channel |
| Piute Farms |
3682.00 |
3680.00 |
101.41 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 1.173 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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