Lake Powell
Lake Powell
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| Elevation & Content |
Water Inflow Data |
Glen Canyon Dam Release Data | Lake Powell is 103.23 feet below Full Pool (Elevation 3,700)
By content, Lake Powell is 47.05% of Full Pool (24,322,000 af)
| Total inflows for water year 2020: 6,446,996 acre feet
This is 61.06% of the September 24th average of 10,557,922 acre feet | Total releases for water year 2020: 8,076,128 acre feet
This is 107.68% of the minimum required of 7,500,000 acre feet |
| During WY 2020, water storage has fallen by 1,819,440 AF and total outflows have exceeded total inflows by 1,629,132 AF |
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The 28 tracked reservoirs above Lake Powell are currently at 73.45% of capacity. Click for Details |
| Inflows for WY 2020 are 55.72% of WY 2019
Rivers feeding Lake Powell are running at 57.00% of the Sep 25th avg. Click for Details
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Lake Powell is down -19.26 feet from one year ago. Lake Powell is at low for water year and down 18.46 feet from the high.
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View Acre Feet
Last 14 Measurements
Lake Powell is down -1.44 feet over these measurements
| DATE MEASURED |
ELEVATION |
CHANGE |
CONTENT |
INFLOW (cfs) |
OUTFLOW (cfs) |
HIGH TEMP |
LOW TEMP |
WATER TEMP |
| Thu, Sep 24, 2020 |
3596.77 |
-0.16 |
11444510 |
3049 |
10463 |
75.0 |
62.0 |
72.0 |
| Wed, Sep 23, 2020 |
3596.93 |
-0.11 |
11459527 |
5567 |
10429 |
70.0 |
61.0 |
72.0 |
| Tue, Sep 22, 2020 |
3597.04 |
-0.10 |
11469859 |
5949 |
10301 |
79.0 |
69.0 |
72.0 |
| Mon, Sep 21, 2020 |
3597.14 |
-0.13 |
11479256 |
4423 |
10315 |
90.0 |
66.0 |
72.0 |
| Sun, Sep 20, 2020 |
3597.27 |
-0.08 |
11491480 |
5534 |
8867 |
93.0 |
67.0 |
72.0 |
| Sat, Sep 19, 2020 |
3597.35 |
-0.13 |
11499006 |
4364 |
10262 |
92.0 |
72.0 |
72.0 |
| Fri, Sep 18, 2020 |
3597.48 |
-0.13 |
11511243 |
4645 |
10546 |
92.0 |
63.0 |
73.0 |
| Thu, Sep 17, 2020 |
3597.61 |
-0.11 |
11523488 |
5307 |
10185 |
92.0 |
61.0 |
73.0 |
| Wed, Sep 16, 2020 |
3597.72 |
-0.11 |
11533856 |
5613 |
10493 |
93.0 |
65.0 |
73.0 |
| Tue, Sep 15, 2020 |
3597.83 |
-0.10 |
11544229 |
5738 |
10108 |
93.0 |
63.0 |
73.0 |
| Mon, Sep 14, 2020 |
3597.93 |
-0.10 |
11553665 |
5920 |
10292 |
90.0 |
62.0 |
74.0 |
| Sun, Sep 13, 2020 |
3598.03 |
-0.06 |
11563106 |
6520 |
8836 |
90.0 |
59.0 |
75.0 |
| Sat, Sep 12, 2020 |
3598.09 |
-0.12 |
11568772 |
4978 |
10383 |
87.0 |
57.0 |
74.0 |
| Fri, Sep 11, 2020 |
3598.21 |
-0.14 |
11580111 |
3937 |
10375 |
69.0 |
52.0 |
74.0 |
| Averages of List |
3597.53 |
-0.11 |
11515865 |
5110 |
10133 |
86.1 |
62.8 |
72.9 |
Averages for September 25th
| AVERAGE TYPE |
ELEVATION |
CHANGE |
CONTENT |
INFLOW (cfs) |
OUTFLOW (cfs) |
HIGH TEMP |
LOW TEMP |
WATER TEMP |
| Since Filled |
3647.06 |
-0.07 |
17301681 |
9955 |
13045 |
83.8 |
57.6 |
73.4 |
| All-Time |
3633.73 |
-0.08 |
15766252 |
9638 |
12543 |
83.9 |
57.6 |
73.4 |
Last 10 September 25th's data records
| DATE MEASURED |
ELEVATION |
CHG vs TODAY |
CONTENT |
INFLOW (cfs) |
OUTFLOW (cfs) |
HIGH TEMP |
LOW TEMP |
WATER TEMP |
| Wed, Sep 25, 2019 |
3615.91 |
19.14 |
13334394 |
6065 |
11979 |
87.0 |
58.0 |
72.0 |
| Tue, Sep 25, 2018 |
3593.13 |
-3.64 |
11106235 |
3384 |
11665 |
87.0 |
66.0 |
75.0 |
| Mon, Sep 25, 2017 |
3628.63 |
31.86 |
14699978 |
4808 |
10521 |
70.0 |
45.0 |
71.0 |
| Sun, Sep 25, 2016 |
3610.94 |
14.17 |
12825151 |
10143 |
10404 |
75.0 |
55.0 |
72.0 |
| Fri, Sep 25, 2015 |
3606.54 |
9.77 |
12385178 |
7239 |
12345 |
91.0 |
64.0 |
77.0 |
| Thu, Sep 25, 2014 |
3605.43 |
8.66 |
12275797 |
9889 |
10684 |
93.0 |
64.9 |
77.0 |
| Wed, Sep 25, 2013 |
3591.38 |
-5.39 |
10945895 |
19310 |
10633 |
84.9 |
63.0 |
72.0 |
| Tue, Sep 25, 2012 |
3621.92 |
25.15 |
13967736 |
6602 |
8031 |
75.9 |
61.0 |
73.0 |
| Sun, Sep 25, 2011 |
3653.54 |
56.77 |
17660388 |
12708 |
15483 |
89.1 |
63.0 |
74.0 |
| Sat, Sep 25, 2010 |
3633.76 |
36.99 |
15278211 |
10760 |
7967 |
87.1 |
57.9 |
73.0 |
| Averages of List |
3616.12 |
-0.05 |
13447896 |
9091 |
10971 |
84.0 |
59.8 |
73.6 |
Accessibility of Primitive Launches and Other Sites
As of Thursday, September 24th, 2020 where elevation was 3596.77'
| SITE/LAUNCH NAME |
MINIMUM SAFE
ELEVATION |
ABSOLUTE MINIMUM
USABLE ELEVATION |
CURRENT LEVEL VS.
ABSOLUTE MINIMUM |
CURRENT ACCESSIBILITY |
| Halls Crossing Launch |
3550.00 |
3548.00 |
48.77 Above |
Open and Usable |
| Wahweap |
3558.00 |
3556.00 |
40.77 Above |
Open and Usable |
| Bullfrog (Main Launch) |
3578.00 |
3576.00 |
20.77 Above |
Open and Usable |
| Castle Rock Cut-Off |
3583.00 |
3580.00 |
16.77 Above |
Open and Usable |
| Antelope Point |
3588.00 |
3587.00 |
9.77 Above |
Open and Usable |
| Dominguez Butte Cut-Off |
3602.00 |
3600.00 |
3.23 Below |
Unusable, go to main marinas |
| Gunsight to Padre Bay Cut-Off |
3613.00 |
3609.00 |
12.23 Below |
Unusable, go to main marinas |
| Hite Marina |
3650.00 |
3645.00 |
48.23 Below |
Unusable, go to main marinas |
| Farley Canyon |
3653.00 |
3649.00 |
52.23 Below |
Unusable, go to main marinas |
| Copper Canyon |
3663.00 |
3660.00 |
63.23 Below |
Unusable, go to main marinas |
| Bullfrog to Halls Creek Cut-Off |
3670.00 |
3668.00 |
71.23 Below |
Unusable, use Main Channel |
| Piute Farms |
3682.00 |
3680.00 |
83.23 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 1.050 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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