Lake Powell, Houseboating, Glen Canyon, Striped Bass

Lake Powell





Lake Powell

For July 27th, 2021
Snowpack is 42% of avg
TotalPrecip is 77.00% of avg

Lake Powell is currently 422.51 feet deep at the dam
Water Summary
Today is day 300 of 365 for the Water Year 2021. We are 82% through the Water Year.
Last Reading: 3554.51 on Jul 26, 2021
Powell was last within 2" of this elevation on May 5, 1969
There are currently 2,578,309,533,357 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 145.49 feet below Full Pool (Elevation 3,700)

By content, Lake Powell is 32.53% of Full Pool (24,322,000 af)
Total inflows for water year 2021: 3,116,154 acre feet

This is 33.63% of the July 26th average of 9,267,304 acre feet
Total releases for water year 2021: 6,672,635 acre feet

This is 88.97% of the minimum required of 7,500,000 acre feet
During WY 2021, water storage has fallen by 3,444,006 AF and total outflows have exceeded total inflows by 3,556,481 AF
The 28 tracked reservoirs above Lake Powell are currently at 69.8% of capacity. Click for Details
Inflows for WY 2021 are 51.8% of WY 2020         Rivers feeding Lake Powell are running at 49.07% of the Jul 27th avg. Click for Details

Lake Powell is down -52.49 feet from one year ago.    Lake Powell is at low for water year and down 41.32 feet from the high.

View CFS     Last 14 Measurements
Lake Powell is down -2.99 feet over these measurements

DATE MEASURED ELEVATION CHANGE CONTENT INFLOW (af) OUTFLOW (af) HIGH TEMP LOW TEMP WATER TEMP
Mon, Jul 26, 2021
3554.51
-0.21
7912531
9681
25242
92.0
75.0
n/a
Sun, Jul 25, 2021
3554.72
-0.18
7927991
9493
22683
91.0
72.0
n/a
Sat, Jul 24, 2021
3554.90
-0.19
7941258
11631
25631
92.0
70.0
n/a
Fri, Jul 23, 2021
3555.09
-0.26
7955277
5349
24954
97.0
76.0
84.0
Thu, Jul 22, 2021
3555.35
-0.20
7974487
11306
26143
95.0
74.0
84.0
Wed, Jul 21, 2021
3555.55
-0.31
7989284
1002
24663
99.0
76.0
84.0
Tue, Jul 20, 2021
3555.86
-0.14
8012254
14470
24538
94.0
74.0
82.0
Mon, Jul 19, 2021
3556.00
-0.33
8022641
-198
25131
95.0
73.0
82.0
Sun, Jul 18, 2021
3556.33
-0.13
8047159
10977
20267
96.0
81.0
81.0
Sat, Jul 17, 2021
3556.46
-0.26
8056831
5484
25244
100.0
77.0
81.0
Fri, Jul 16, 2021
3556.72
-0.25
8076197
6793
25778
95.0
77.0
80.0
Thu, Jul 15, 2021
3556.97
-0.28
8094847
4544
25976
95.0
71.0
80.0
Wed, Jul 14, 2021
3557.25
-0.25
8115766
6347
25389
90.0
69.0
80.0
Tue, Jul 13, 2021
3557.50
-0.24
8134474
7281
25540
100.0
71.0
80.0
Averages of List
3555.94
-0.23
8018643
7440
24799
95.1
74.0
81.6

Averages for July 27th

AVERAGE TYPE ELEVATION CHANGE CONTENT INFLOW (af) OUTFLOW (af) HIGH TEMP LOW TEMP WATER TEMP
Since Filled
3652.42
-0.09
17982875
25143
31559
97.5
71.5
79.8
All-Time
3639.30
-0.07
16437868
26018
29515
98.0
71.9
79.8

Last 10 July 27th's data records

DATE MEASURED ELEVATION CHG vs TODAY CONTENT INFLOW (af) OUTFLOW (af) HIGH TEMP LOW TEMP WATER TEMP
Mon, Jul 27, 2020
3606.93
52.42
12423764
20593
26385
93.0
74.0
79.0
Sat, Jul 27, 2019
3621.43
66.92
13915333
30500
21709
99.0
71.0
79.0
Fri, Jul 27, 2018
3604.60
50.09
12194432
3072
29945
101.0
75.0
79.0
Thu, Jul 27, 2017
3634.89
80.38
15407724
20351
28229
97.0
73.0
79.0
Wed, Jul 27, 2016
3618.94
64.43
13651246
15561
31934
106.0
75.0
79.0
Mon, Jul 27, 2015
3613.35
58.84
13070462
19573
34398
97.0
73.9
77.0
Sun, Jul 27, 2014
3608.52
54.01
12581903
7934
23485
99.0
75.9
78.0
Sat, Jul 27, 2013
3594.97
40.46
11276427
13049
26549
89.6
69.8
80.0
Fri, Jul 27, 2012
3629.09
74.58
14751176
14033
28913
91.0
77.0
n/a
Wed, Jul 27, 2011
3660.71
106.20
18585720
72376
47904
95.0
68.0
77.0
Averages of List
3619.34
-0.10
13785819
21704
29945
96.8
73.3
78.6


Accessibility of Launch Ramps, Primitive Launches and Other Sites
As of Monday, July 26th, 2021 where elevation was 3554.51'


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
0.49 Below
Unusable, go to main marinas
Wahweap
3558.00
3556.00
1.49 Below
Unusable, go to main marinas
Stateline Launch
3564.00
3562.00
7.49 Below
Unusable, go to main marinas
Bullfrog (Main Launch)
3578.00
3576.00
21.49 Below
Unusable, go to main marinas
Castle Rock Cut-Off
3583.00
3580.00
25.49 Below
Unusable, use Main Channel
Antelope Point
3588.00
3587.00
32.49 Below
Unusable, go to main marinas
Dominguez Butte Cut-Off
3602.00
3600.00
45.49 Below
Unusable, go to main marinas
Gunsight to Padre Bay Cut-Off
3613.00
3609.00
54.49 Below
Unusable, go to main marinas
Hite Marina
3650.00
3645.00
90.49 Below
Unusable, go to main marinas
Farley Canyon
3653.00
3649.00
94.49 Below
Unusable, go to main marinas
Copper Canyon
3663.00
3660.00
105.49 Below
Unusable, go to main marinas
Bullfrog to Halls Creek Cut-Off
3670.00
3668.00
113.49 Below
Unusable, use Main Channel
Piute Farms
3682.00
3680.00
125.49 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 - Acre Feet per day
Outflow - Acre Feet per day
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 1.014 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