Lake Powell, Houseboating, Glen Canyon, Striped Bass

Lake Powell





Lake Powell

For September 19th, 2020
Snowpack is 114% of avg
TotalPrecip is 77.00% of avg

Lake Powell is currently 465.48 feet deep at the dam
Water Summary
Today is day 356 of 366 for the Water Year 2020. We are 97% through the Water Year.
Last Reading: 3597.48 on Sep 18, 2020
Powell was last within 2" of this elevation on Aug 29, 2018
There are currently 3,750,954,981,116 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 102.52 feet below Full Pool (Elevation 3,700)

By content, Lake Powell is 47.33% of Full Pool (24,322,000 af)
Total inflows for water year 2020: 6,389,700 acre feet

This is 61.17% of the September 18th average of 10,446,282 acre feet
Total releases for water year 2020: 7,955,854 acre feet

This is 106.08% of the minimum required of 7,500,000 acre feet
During WY 2020, water storage has fallen by 1,752,707 AF and total outflows have exceeded total inflows by 1,566,154 AF
The 28 tracked reservoirs above Lake Powell are currently at 74.03% of capacity. Click for Details
Inflows for WY 2020 are 55.63% of WY 2019         Rivers feeding Lake Powell are running at 63.19% of the Sep 19th avg. Click for Details

Lake Powell is down -19.11 feet from one year ago.    Lake Powell is at low for water year and down 17.75 feet from the high.

View Acre Feet     Last 14 Measurements
Lake Powell is down -1.55 feet over these measurements

DATE MEASURED ELEVATION CHANGE CONTENT INFLOW (cfs) OUTFLOW (cfs) HIGH TEMP LOW TEMP WATER TEMP
Fri, Sep 18, 2020
3597.48
-0.13
11511243
4645
10546
n/a
n/a
n/a
Thu, Sep 17, 2020
3597.61
-0.11
11523488
5307
10185
n/a
n/a
n/a
Wed, Sep 16, 2020
3597.72
-0.11
11533856
5613
10493
n/a
n/a
n/a
Tue, Sep 15, 2020
3597.83
-0.10
11544229
5738
10108
n/a
n/a
n/a
Mon, Sep 14, 2020
3597.93
-0.10
11553665
5920
10292
n/a
n/a
n/a
Sun, Sep 13, 2020
3598.03
-0.06
11563106
6520
8836
n/a
n/a
n/a
Sat, Sep 12, 2020
3598.09
-0.12
11568772
4978
10383
n/a
n/a
n/a
Fri, Sep 11, 2020
3598.21
-0.14
11580111
3937
10375
69.0
52.0
74.0
Thu, Sep 10, 2020
3598.35
-0.12
11593348
5016
10427
71.0
50.0
73.0
Wed, Sep 09, 2020
3598.47
-0.26
11604702
-2183
10453
55.0
49.0
73.0
Tue, Sep 08, 2020
3598.73
-0.07
11629325
7707
10547
87.0
62.0
76.0
Mon, Sep 07, 2020
3598.80
-0.15
11635961
1846
8819
100.0
74.0
78.0
Sun, Sep 06, 2020
3598.95
-0.08
11650187
6267
9627
105.0
71.0
78.0
Sat, Sep 05, 2020
3599.03
-0.15
11657778
3354
10335
104.0
68.0
78.0
Averages of List
3598.23
-0.12
11582127
4619
10102
84.4
60.9
75.7

Averages for September 20th

AVERAGE TYPE ELEVATION CHANGE CONTENT INFLOW (cfs) OUTFLOW (cfs) HIGH TEMP LOW TEMP WATER TEMP
Since Filled
3647.53
-0.07
17363765
9124
13254
86.5
59.2
74.2
All-Time
3634.20
-0.07
15825637
9011
12424
85.3
58.6
74.2

Last 10 September 20th's data records

DATE MEASURED ELEVATION CHG vs TODAY CONTENT INFLOW (cfs) OUTFLOW (cfs) HIGH TEMP LOW TEMP WATER TEMP
Thu, Sep 19, 2019
3616.47
18.99
13392590
6005
11936
90.0
69.0
74.0
Wed, Sep 19, 2018
3594.14
-3.34
11199452
4828
11639
90.0
67.0
75.0
Tue, Sep 19, 2017
3629.18
31.70
14761208
0
11582
88.0
61.0
77.0
Mon, Sep 19, 2016
3611.36
13.88
12867682
6329
12112
93.0
59.0
74.0
Sat, Sep 19, 2015
3607.15
9.67
12445565
6863
11444
87.1
59.0
77.0
Fri, Sep 19, 2014
3605.73
8.25
12305296
9075
10407
91.9
73.0
77.0
Thu, Sep 19, 2013
3591.19
-6.29
10928576
12028
10797
84.0
62.1
66.0
Wed, Sep 19, 2012
3622.33
24.85
14011695
4890
8076
89.1
61.0
75.0
Mon, Sep 19, 2011
3653.90
56.42
17706060
15403
15602
88.0
62.1
75.0
Sun, Sep 19, 2010
3633.80
36.32
15282782
6893
8106
96.1
61.0
72.0
Averages of List
3616.53
-0.09
13490091
7231
11170
89.7
63.4
74.2


Accessibility of Primitive Launches and Other Sites
As of Friday, September 18th, 2020 where elevation was 3597.48'

SITE/LAUNCH NAME MINIMUM SAFE
ELEVATION
ABSOLUTE MINIMUM
USABLE ELEVATION
CURRENT LEVEL VS.
ABSOLUTE MINIMUM
CURRENT ACCESSIBILITY
Halls Crossing Launch
3550.00
3548.00
49.48 Above
Open and Usable
Wahweap
3558.00
3556.00
41.48 Above
Open and Usable
Bullfrog (Main Launch)
3578.00
3576.00
21.48 Above
Open and Usable
Castle Rock Cut-Off
3583.00
3580.00
17.48 Above
Open and Usable
Antelope Point
3588.00
3587.00
10.48 Above
Open and Usable
Dominguez Butte Cut-Off
3602.00
3600.00
2.52 Below
Unusable, go to main marinas
Gunsight to Padre Bay Cut-Off
3613.00
3609.00
11.52 Below
Unusable, go to main marinas
Hite Marina
3650.00
3645.00
47.52 Below
Unusable, go to main marinas
Farley Canyon
3653.00
3649.00
51.52 Below
Unusable, go to main marinas
Copper Canyon
3663.00
3660.00
62.52 Below
Unusable, go to main marinas
Bullfrog to Halls Creek Cut-Off
3670.00
3668.00
70.52 Below
Unusable, use Main Channel
Piute Farms
3682.00
3680.00
82.52 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.


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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 1.174 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