Lake Powell
Lake Powell
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| Elevation & Content |
Water Inflow Data |
Glen Canyon Dam Release Data | Lake Powell is 106.66 feet below Full Pool (Elevation 3,700)
By content, Lake Powell is 45.74% of Full Pool (24,322,000 af)
| Total inflows for water year 2021: 145,722 acre feet
This is 40.87% of the October 19th average of 356,561 acre feet | Total releases for water year 2021: 391,247 acre feet
This is 5.22% of the minimum required of 7,500,000 acre feet |
| During WY 2021, water storage has fallen by 2,138,374 AF and total outflows have exceeded total inflows by 245,525 AF |
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The 28 tracked reservoirs above Lake Powell are currently at 71.52% of capacity. Click for Details |
| Inflows for WY 2021 are 60.7% of WY 2020
Rivers feeding Lake Powell are running at 52.35% of the Oct 20th avg. Click for Details
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Lake Powell is down -20.45 feet from one year ago. Lake Powell is at low for water year and down 2.49 feet from the high.
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View Acre Feet
Last 14 Measurements
Lake Powell is down -1.81 feet over these measurements
| DATE MEASURED |
ELEVATION |
CHANGE |
CONTENT |
INFLOW (cfs) |
OUTFLOW (cfs) |
HIGH TEMP |
LOW TEMP |
WATER TEMP |
| Mon, Oct 19, 2020 |
3593.34 |
-0.12 |
11125576 |
4948 |
10471 |
85.0 |
56.0 |
68.0 |
| Sun, Oct 18, 2020 |
3593.46 |
-0.13 |
11136638 |
2866 |
8893 |
85.0 |
58.0 |
67.0 |
| Sat, Oct 17, 2020 |
3593.59 |
-0.14 |
11148629 |
4051 |
10586 |
80.0 |
50.0 |
66.0 |
| Fri, Oct 16, 2020 |
3593.73 |
-0.20 |
11161552 |
1050 |
10608 |
75.0 |
52.0 |
67.0 |
| Thu, Oct 15, 2020 |
3593.93 |
-0.12 |
11180029 |
5172 |
10711 |
82.0 |
63.0 |
67.0 |
| Wed, Oct 14, 2020 |
3594.05 |
-0.13 |
11191125 |
4546 |
10592 |
89.0 |
54.0 |
67.0 |
| Tue, Oct 13, 2020 |
3594.18 |
-0.16 |
11203154 |
3529 |
11092 |
84.0 |
53.0 |
68.0 |
| Mon, Oct 12, 2020 |
3594.34 |
-0.17 |
11217969 |
2638 |
10713 |
80.0 |
53.0 |
68.0 |
| Sun, Oct 11, 2020 |
3594.51 |
-0.07 |
11233724 |
6231 |
9260 |
84.0 |
60.0 |
69.0 |
| Sat, Oct 10, 2020 |
3594.58 |
-0.16 |
11240216 |
2615 |
10194 |
85.0 |
58.0 |
70.0 |
| Fri, Oct 09, 2020 |
3594.74 |
-0.13 |
11255063 |
4204 |
10271 |
83.0 |
61.0 |
70.0 |
| Thu, Oct 08, 2020 |
3594.87 |
-0.15 |
11267135 |
3572 |
10655 |
86.0 |
60.0 |
70.0 |
| Wed, Oct 07, 2020 |
3595.02 |
-0.13 |
11281074 |
4498 |
10574 |
85.0 |
54.0 |
70.0 |
| Tue, Oct 06, 2020 |
3595.15 |
-0.14 |
11293164 |
4065 |
10652 |
65.0 |
56.0 |
70.0 |
| Averages of List |
3594.25 |
-0.14 |
11209646 |
3856 |
10377 |
82.0 |
56.3 |
68.4 |
Averages for October 20th
| AVERAGE TYPE |
ELEVATION |
CHANGE |
CONTENT |
INFLOW (cfs) |
OUTFLOW (cfs) |
HIGH TEMP |
LOW TEMP |
WATER TEMP |
| Since Filled |
3646.02 |
-0.03 |
17161348 |
9914 |
11173 |
71.0 |
47.4 |
66.6 |
| All-Time |
3632.77 |
-0.00 |
15643168 |
10370 |
10302 |
71.3 |
47.8 |
66.6 |
Last 10 October 20th's data records
| DATE MEASURED |
ELEVATION |
CHG vs TODAY |
CONTENT |
INFLOW (cfs) |
OUTFLOW (cfs) |
HIGH TEMP |
LOW TEMP |
WATER TEMP |
| Sun, Oct 20, 2019 |
3613.77 |
20.43 |
13113526 |
8270 |
8812 |
64.0 |
49.0 |
64.0 |
| Sat, Oct 20, 2018 |
3591.45 |
-1.89 |
10952280 |
8212 |
10202 |
69.0 |
47.0 |
65.0 |
| Fri, Oct 20, 2017 |
3627.75 |
34.41 |
14602391 |
9000 |
10777 |
81.0 |
55.0 |
65.0 |
| Thu, Oct 20, 2016 |
3610.03 |
16.69 |
12733320 |
7078 |
10355 |
69.0 |
45.0 |
67.0 |
| Tue, Oct 20, 2015 |
3606.15 |
12.81 |
12346673 |
17691 |
10165 |
61.0 |
53.1 |
71.0 |
| Mon, Oct 20, 2014 |
3606.05 |
12.71 |
12336813 |
8672 |
10273 |
n/a |
n/a |
n/a |
| Sun, Oct 20, 2013 |
3591.08 |
-2.26 |
10918558 |
7142 |
7144 |
72.0 |
42.1 |
64.0 |
| Sat, Oct 20, 2012 |
3620.23 |
26.89 |
13787615 |
2939 |
8117 |
78.1 |
48.9 |
67.0 |
| Thu, Oct 20, 2011 |
3651.23 |
57.89 |
17369308 |
10404 |
15493 |
77.0 |
50.0 |
68.0 |
| Wed, Oct 20, 2010 |
3634.12 |
40.78 |
15319388 |
7567 |
8011 |
69.1 |
53.1 |
69.0 |
| Averages of List |
3615.19 |
-0.01 |
13347987 |
8698 |
9935 |
71.1 |
49.2 |
66.7 |
Accessibility of Primitive Launches and Other Sites
As of Monday, October 19th, 2020 where elevation was 3593.34'
| SITE/LAUNCH NAME |
MINIMUM SAFE
ELEVATION |
ABSOLUTE MINIMUM
USABLE ELEVATION |
CURRENT LEVEL VS.
ABSOLUTE MINIMUM |
CURRENT ACCESSIBILITY |
| Halls Crossing Launch |
3550.00 |
3548.00 |
45.34 Above |
Open and Usable |
| Wahweap |
3558.00 |
3556.00 |
37.34 Above |
Open and Usable |
| Bullfrog (Main Launch) |
3578.00 |
3576.00 |
17.34 Above |
Open and Usable |
| Castle Rock Cut-Off |
3583.00 |
3580.00 |
13.34 Above |
Open and Usable |
| Antelope Point |
3588.00 |
3587.00 |
6.34 Above |
Open and Usable |
| Dominguez Butte Cut-Off |
3602.00 |
3600.00 |
6.66 Below |
Unusable, go to main marinas |
| Gunsight to Padre Bay Cut-Off |
3613.00 |
3609.00 |
15.66 Below |
Unusable, go to main marinas |
| Hite Marina |
3650.00 |
3645.00 |
51.66 Below |
Unusable, go to main marinas |
| Farley Canyon |
3653.00 |
3649.00 |
55.66 Below |
Unusable, go to main marinas |
| Copper Canyon |
3663.00 |
3660.00 |
66.66 Below |
Unusable, go to main marinas |
| Bullfrog to Halls Creek Cut-Off |
3670.00 |
3668.00 |
74.66 Below |
Unusable, use Main Channel |
| Piute Farms |
3682.00 |
3680.00 |
86.66 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 1.072 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 - 2020
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