Lake Powell, Houseboating, Glen Canyon, Striped Bass

Lake Powell





Lake Powell

For July 24th, 2021
Snowpack is 52% of avg
TotalPrecip is 75.00% of avg

Lake Powell is currently 423.09 feet deep at the dam
Water Summary
Today is day 297 of 365 for the Water Year 2021. We are 81% through the Water Year.
Last Reading: 3555.09 on Jul 23, 2021
Powell was last within 2" of this elevation on Apr 9, 2005
There are currently 2,592,238,378,541 gallons of water in Lake Powell!
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Printable Version
Gas Prices on Lake
Detailed Map of Powell
15 Day Weather Forecast
SW Satellite Weather
SW Water Vapor


Elevation & Content Water Inflow Data Glen Canyon Dam Release Data
Lake Powell is 144.91 feet below Full Pool (Elevation 3,700)

By content, Lake Powell is 32.71% of Full Pool (24,322,000 af)
Total inflows for water year 2021: 3,085,348 acre feet

This is 33.59% of the July 23rd average of 9,184,873 acre feet
Total releases for water year 2021: 6,599,079 acre feet

This is 87.99% of the minimum required of 7,500,000 acre feet
During WY 2021, water storage has fallen by 3,401,260 AF and total outflows have exceeded total inflows by 3,513,731 AF
The 28 tracked reservoirs above Lake Powell are currently at 69.99% of capacity. Click for Details
Inflows for WY 2021 are 51.47% of WY 2020         Rivers feeding Lake Powell are running at 38.75% of the Jul 24th avg. Click for Details

Lake Powell is down -52.25 feet from one year ago.    Lake Powell is at low for water year and down 40.74 feet from the high.

View Acre Feet     Last 14 Measurements
Lake Powell is down -3.09 feet over these measurements

DATE MEASURED ELEVATION CHANGE CONTENT INFLOW (cfs) OUTFLOW (cfs) HIGH TEMP LOW TEMP WATER TEMP
Fri, Jul 23, 2021
3555.09
-0.26
7955277
2697
12581
97.0
76.0
84.0
Thu, Jul 22, 2021
3555.35
-0.20
7974487
5700
13180
95.0
74.0
84.0
Wed, Jul 21, 2021
3555.55
-0.31
7989284
505
12434
99.0
76.0
84.0
Tue, Jul 20, 2021
3555.86
-0.14
8012254
7295
12371
94.0
74.0
82.0
Mon, Jul 19, 2021
3556.00
-0.33
8022641
-100
12670
95.0
73.0
82.0
Sun, Jul 18, 2021
3556.33
-0.13
8047159
5534
10218
96.0
81.0
81.0
Sat, Jul 17, 2021
3556.46
-0.26
8056831
2765
12727
100.0
77.0
81.0
Fri, Jul 16, 2021
3556.72
-0.25
8076197
3425
12996
95.0
77.0
80.0
Thu, Jul 15, 2021
3556.97
-0.28
8094847
2291
13096
95.0
71.0
80.0
Wed, Jul 14, 2021
3557.25
-0.25
8115766
3200
12800
90.0
69.0
80.0
Tue, Jul 13, 2021
3557.50
-0.24
8134474
3671
12876
100.0
71.0
80.0
Mon, Jul 12, 2021
3557.74
-0.24
8152458
3525
12744
107.0
84.0
80.0
Sun, Jul 11, 2021
3557.98
-0.20
8170469
2473
10065
108.0
85.0
80.0
Sat, Jul 10, 2021
3558.18
-0.25
8185496
3761
13412
109.0
82.0
80.0
Averages of List
3556.64
-0.24
8070546
3339
12441
98.6
76.4
81.3

Averages for July 24th

AVERAGE TYPE ELEVATION CHANGE CONTENT INFLOW (cfs) OUTFLOW (cfs) HIGH TEMP LOW TEMP WATER TEMP
Since Filled
3652.71
-0.10
18017826
13653
16706
96.2
72.1
79.8
All-Time
3639.53
-0.07
16466021
14052
15299
96.4
72.4
79.8

Last 10 July 24th's data records

DATE MEASURED ELEVATION CHG vs TODAY CONTENT INFLOW (cfs) OUTFLOW (cfs) HIGH TEMP LOW TEMP WATER TEMP
Fri, Jul 24, 2020
3607.23
52.14
12453500
5638
13426
76.0
69.0
78.0
Wed, Jul 24, 2019
3621.30
66.21
13901455
19249
16563
98.0
78.0
78.0
Tue, Jul 24, 2018
3605.31
50.22
12264011
4295
15218
104.0
80.0
79.0
Mon, Jul 24, 2017
3635.03
79.94
15423824
10467
14441
90.0
75.0
80.0
Sun, Jul 24, 2016
3619.43
64.34
13702941
4948
13799
102.0
78.0
79.0
Fri, Jul 24, 2015
3613.73
58.64
13109421
12802
17494
95.0
70.0
78.0
Thu, Jul 24, 2014
3608.87
53.78
12616893
8914
13497
99.0
84.9
77.0
Wed, Jul 24, 2013
3595.60
40.51
11335077
6070
13915
99.0
75.9
80.0
Tue, Jul 24, 2012
3629.57
74.48
14804737
2949
14732
89.1
71.1
79.0
Sun, Jul 24, 2011
3660.47
105.38
18554200
44580
24135
n/a
n/a
78.0
Averages of List
3619.65
-0.10
13816606
11991
15722
94.7
75.8
78.6


Accessibility of Launch Ramps, Primitive Launches and Other Sites
As of Friday, July 23rd, 2021 where elevation was 3555.09'


NPS UPDATE ON RAMPS


SITE/LAUNCH NAME MINIMUM SAFE
ELEVATION
ABSOLUTE MINIMUM
USABLE ELEVATION
CURRENT LEVEL VS.
ABSOLUTE MINIMUM
CURRENT ACCESSIBILITY
Halls Crossing Launch
3556.00
3555.00
0.09 Above
Looking bad, not likely. Go very slow!
Wahweap
3558.00
3556.00
0.91 Below
Unusable, go to main marinas
Stateline Launch
3564.00
3562.00
6.91 Below
Unusable, go to main marinas
Bullfrog (Main Launch)
3578.00
3576.00
20.91 Below
Unusable, go to main marinas
Castle Rock Cut-Off
3583.00
3580.00
24.91 Below
Unusable, use Main Channel
Antelope Point
3588.00
3587.00
31.91 Below
Unusable, go to main marinas
Dominguez Butte Cut-Off
3602.00
3600.00
44.91 Below
Unusable, go to main marinas
Gunsight to Padre Bay Cut-Off
3613.00
3609.00
53.91 Below
Unusable, go to main marinas
Hite Marina
3650.00
3645.00
89.91 Below
Unusable, go to main marinas
Farley Canyon
3653.00
3649.00
93.91 Below
Unusable, go to main marinas
Copper Canyon
3663.00
3660.00
104.91 Below
Unusable, go to main marinas
Bullfrog to Halls Creek Cut-Off
3670.00
3668.00
112.91 Below
Unusable, use Main Channel
Piute Farms
3682.00
3680.00
124.91 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 1.234 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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Lake Powell, Houseboating, Glen Canyon, Striped Bass