Lake Powell
Lake Powell
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| Elevation & Content |
Water Inflow Data |
Glen Canyon Dam Release Data | Lake Powell is 120.45 feet below Full Pool (Elevation 3,700)
By content, Lake Powell is 40.71% of Full Pool (24,322,000 af)
| Total inflows for water year 2021: 837,571 acre feet
This is 44.22% of the January 14th average of 1,893,903 acre feet | Total releases for water year 2021: 2,343,735 acre feet
This is 31.25% of the minimum required of 7,500,000 acre feet |
| During WY 2021, water storage has fallen by 1,455,503 AF and total outflows have exceeded total inflows by 1,506,164 AF |
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The 28 tracked reservoirs above Lake Powell are currently at 70.27% of capacity. Click for Details |
| Inflows for WY 2021 are 54.2% 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 -27.61 feet from one year ago. Lake Powell is at low for water year and down 16.28 feet from the high.
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View Acre Feet
Last 14 Measurements
Lake Powell is down -2.51 feet over these measurements
| DATE MEASURED |
ELEVATION |
CHANGE |
CONTENT |
INFLOW (cfs) |
OUTFLOW (cfs) |
HIGH TEMP |
LOW TEMP |
WATER TEMP |
| 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 |
| Tue, Jan 05, 2021 |
3581.35 |
-0.21 |
10055628 |
3372 |
13139 |
54.0 |
26.0 |
48.0 |
| Mon, Jan 04, 2021 |
3581.56 |
-0.24 |
10073767 |
1568 |
12759 |
47.0 |
28.0 |
47.0 |
| Sun, Jan 03, 2021 |
3581.80 |
-0.12 |
10094523 |
5125 |
10671 |
46.0 |
26.0 |
46.0 |
| Sat, Jan 02, 2021 |
3581.92 |
-0.14 |
10104911 |
4902 |
11396 |
45.0 |
25.0 |
47.0 |
| Fri, Jan 01, 2021 |
3582.06 |
-0.15 |
10117040 |
3870 |
10841 |
44.0 |
23.0 |
47.0 |
| Averages of List |
3580.85 |
-0.19 |
10012926 |
3540 |
12338 |
46.0 |
24.9 |
47.5 |
Averages for January 15th
| AVERAGE TYPE |
ELEVATION |
CHANGE |
CONTENT |
INFLOW (cfs) |
OUTFLOW (cfs) |
HIGH TEMP |
LOW TEMP |
WATER TEMP |
| Since Filled |
3638.38 |
-0.10 |
16250347 |
8357 |
14124 |
47.6 |
28.4 |
47.6 |
| All-Time |
3622.55 |
-0.08 |
14902282 |
8769 |
13266 |
46.8 |
28.2 |
47.6 |
Last 10 January 15th's data records
| DATE MEASURED |
ELEVATION |
CHG vs TODAY |
CONTENT |
INFLOW (cfs) |
OUTFLOW (cfs) |
HIGH TEMP |
LOW TEMP |
WATER TEMP |
| Wed, Jan 15, 2020 |
3607.09 |
27.54 |
12439617 |
9225 |
12870 |
51.0 |
30.0 |
48.0 |
| Tue, Jan 15, 2019 |
3578.84 |
-0.71 |
9840487 |
10591 |
13264 |
40.0 |
33.0 |
47.0 |
| Mon, Jan 15, 2018 |
3621.21 |
41.66 |
13891853 |
7061 |
14466 |
53.0 |
33.0 |
50.0 |
| Sun, Jan 15, 2017 |
3598.14 |
18.59 |
11573496 |
9020 |
12498 |
46.0 |
41.0 |
49.0 |
| Fri, Jan 15, 2016 |
3598.60 |
19.05 |
11617009 |
6967 |
14580 |
46.9 |
32.0 |
47.0 |
| Thu, Jan 15, 2015 |
3595.51 |
15.96 |
11326686 |
8465 |
14435 |
48.9 |
33.1 |
48.0 |
| Wed, Jan 15, 2014 |
3581.61 |
2.06 |
10078089 |
5490 |
13385 |
52.0 |
30.9 |
46.0 |
| Tue, Jan 15, 2013 |
3606.94 |
27.39 |
12424754 |
3551 |
13131 |
28.9 |
12.0 |
44.0 |
| Sun, Jan 15, 2012 |
3638.17 |
58.62 |
15788041 |
7572 |
11864 |
46.9 |
30.0 |
49.0 |
| Sat, Jan 15, 2011 |
3623.58 |
44.03 |
14146346 |
6780 |
16345 |
48.0 |
28.9 |
48.0 |
| Averages of List |
3604.97 |
-0.12 |
12312638 |
7472 |
13684 |
46.2 |
30.4 |
47.6 |
Accessibility of Primitive Launches and Other Sites
As of Thursday, January 14th, 2021 where elevation was 3579.55'
| SITE/LAUNCH NAME |
MINIMUM SAFE
ELEVATION |
ABSOLUTE MINIMUM
USABLE ELEVATION |
CURRENT LEVEL VS.
ABSOLUTE MINIMUM |
CURRENT ACCESSIBILITY |
| Halls Crossing Launch |
3550.00 |
3548.00 |
31.55 Above |
Open and Usable |
| Wahweap |
3558.00 |
3556.00 |
23.55 Above |
Open and Usable |
| Bullfrog (Main Launch) |
3578.00 |
3576.00 |
3.55 Above |
Open and Usable |
| Castle Rock Cut-Off |
3583.00 |
3580.00 |
0.45 Below |
Unusable, use Main Channel |
| Antelope Point |
3588.00 |
3587.00 |
7.45 Below |
Unusable, go to main marinas |
| Dominguez Butte Cut-Off |
3602.00 |
3600.00 |
20.45 Below |
Unusable, go to main marinas |
| Gunsight to Padre Bay Cut-Off |
3613.00 |
3609.00 |
29.45 Below |
Unusable, go to main marinas |
| Hite Marina |
3650.00 |
3645.00 |
65.45 Below |
Unusable, go to main marinas |
| Farley Canyon |
3653.00 |
3649.00 |
69.45 Below |
Unusable, go to main marinas |
| Copper Canyon |
3663.00 |
3660.00 |
80.45 Below |
Unusable, go to main marinas |
| Bullfrog to Halls Creek Cut-Off |
3670.00 |
3668.00 |
88.45 Below |
Unusable, use Main Channel |
| Piute Farms |
3682.00 |
3680.00 |
100.45 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 1.000 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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