Lake Powell, Houseboating, Glen Canyon, Striped Bass

Lake Powell





Lake Powell

For August 11th, 2020
Snowpack is 56% of avg
TotalPrecip is 81.00% of avg

Lake Powell is currently 472.26 feet deep at the dam
Water Summary
Today is day 316 of 366 for the Water Year 2020. We are 86% through the Water Year.
Last Reading: 3604.26 on Aug 10, 2020
Powell was last within 2" of this elevation on Feb 13, 2020
There are currently 3,962,746,353,463 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 95.74 feet below Full Pool (Elevation 3,700)

By content, Lake Powell is 50% of Full Pool (24,322,000 af)
Total inflows for water year 2020: 6,097,031 acre feet

This is 62.56% of the August 10th average of 9,746,005 acre feet
Total releases for water year 2020: 7,023,139 acre feet

This is 93.64% of the minimum required of 7,500,000 acre feet
During WY 2020, water storage has fallen by 1,102,744 AF and total outflows have exceeded total inflows by 926,108 AF
The 28 tracked reservoirs above Lake Powell are currently at 79.84% of capacity. Click for Details
Inflows for WY 2020 are 55.62% of WY 2019         Rivers feeding Lake Powell are running at 44.43% of the Aug 11th avg. Click for Details

Lake Powell is down -17.13 feet from one year ago.    Lake Powell is up 5.00 feet from the low for water year.

View Acre Feet     Last 14 Measurements
Lake Powell is down -2.42 feet over these measurements

DATE MEASURED ELEVATION CHANGE CONTENT INFLOW (cfs) OUTFLOW (cfs) HIGH TEMP LOW TEMP WATER TEMP
Mon, Aug 10, 2020
3604.26
-0.25
12161206
2619
15079
n/a
n/a
n/a
Sun, Aug 09, 2020
3604.51
-0.15
12185631
3583
10730
86.0
72.0
79.0
Sat, Aug 08, 2020
3604.66
-0.16
12200302
3004
10689
82.0
68.0
79.0
Fri, Aug 07, 2020
3604.82
-0.26
12215963
1973
15003
97.0
68.0
79.0
Thu, Aug 06, 2020
3605.08
-0.23
12241442
3232
14676
85.0
74.0
80.0
Wed, Aug 05, 2020
3605.31
-0.24
12264011
2961
14955
99.0
74.0
81.0
Tue, Aug 04, 2020
3605.55
-0.22
12287591
3962
14898
100.0
76.0
81.0
Mon, Aug 03, 2020
3605.77
-0.23
12309232
3305
14791
102.0
78.0
80.0
Sun, Aug 02, 2020
3606.00
-0.13
12331885
4468
10596
105.0
79.0
80.0
Sat, Aug 01, 2020
3606.13
-0.12
12344701
5028
10623
91.0
76.0
80.0
Fri, Jul 31, 2020
3606.25
-0.15
12356539
5938
13149
106.0
92.0
80.0
Thu, Jul 30, 2020
3606.40
-0.13
12371347
7090
13230
0.0
0.0
80.0
Wed, Jul 29, 2020
3606.53
-0.15
12384190
5971
13192
103.0
74.0
80.0
Tue, Jul 28, 2020
3606.68
-0.25
12399020
590
13209
98.0
72.0
79.0
Averages of List
3605.57
-0.19
12289504
3837
13201
88.8
69.5
79.8

Averages for August 11th

AVERAGE TYPE ELEVATION CHANGE CONTENT INFLOW (cfs) OUTFLOW (cfs) HIGH TEMP LOW TEMP WATER TEMP
Since Filled
3651.84
-0.13
17909475
9834
16349
95.2
70.2
79.6
All-Time
3638.48
-0.11
16330462
9961
15128
95.9
70.7
79.6

Last 10 August 11th's data records

DATE MEASURED ELEVATION CHG vs TODAY CONTENT INFLOW (cfs) OUTFLOW (cfs) HIGH TEMP LOW TEMP WATER TEMP
Sun, Aug 11, 2019
3621.36
17.10
13907859
10729
11531
95.0
73.0
80.0
Sat, Aug 11, 2018
3601.33
-2.93
11877406
1373
11544
98.0
75.0
79.0
Fri, Aug 11, 2017
3633.56
29.30
15255369
6135
15058
96.0
73.0
80.0
Thu, Aug 11, 2016
3616.84
12.58
13431131
6648
14820
91.0
66.0
80.0
Tue, Aug 11, 2015
3611.84
7.58
12916403
12131
13460
78.1
69.1
76.0
Mon, Aug 11, 2014
3607.44
3.18
12474343
7905
13537
97.0
73.9
78.0
Sun, Aug 11, 2013
3592.53
-11.73
11051094
6553
11775
90.0
70.0
77.0
Sat, Aug 11, 2012
3626.63
22.37
14478869
689
12290
n/a
n/a
80.0
Thu, Aug 11, 2011
3659.65
55.39
18446820
16908
24652
99.0
78.1
79.0
Wed, Aug 11, 2010
3636.44
32.18
15586634
11040
13317
93.9
71.1
82.0
Averages of List
3620.76
-0.13
13942593
8011
14198
93.1
72.1
79.1


Accessibility of Primitive Launches and Other Sites
As of Monday, August 10th, 2020 where elevation was 3604.26'

SITE/LAUNCH NAME MINIMUM SAFE
ELEVATION
ABSOLUTE MINIMUM
USABLE ELEVATION
CURRENT LEVEL VS.
ABSOLUTE MINIMUM
CURRENT ACCESSIBILITY
Halls Crossing Launch
3550.00
3548.00
56.26 Above
Open and Usable
Wahweap
3558.00
3556.00
48.26 Above
Open and Usable
Bullfrog (Main Launch)
3578.00
3576.00
28.26 Above
Open and Usable
Castle Rock Cut-Off
3583.00
3580.00
24.26 Above
Open and Usable
Antelope Point
3588.00
3587.00
17.26 Above
Open and Usable
Dominguez Butte Cut-Off
3602.00
3600.00
4.26 Above
Open and Usable
Gunsight to Padre Bay Cut-Off
3613.00
3609.00
4.74 Below
Unusable, go to main marinas
Hite Marina
3650.00
3645.00
40.74 Below
Unusable, go to main marinas
Farley Canyon
3653.00
3649.00
44.74 Below
Unusable, go to main marinas
Copper Canyon
3663.00
3660.00
55.74 Below
Unusable, go to main marinas
Bullfrog to Halls Creek Cut-Off
3670.00
3668.00
63.74 Below
Unusable, use Main Channel
Piute Farms
3682.00
3680.00
75.74 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


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1999 - 2020



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Lake Powell, Houseboating, Glen Canyon, Striped Bass