Lake Powell, Houseboating, Glen Canyon, Striped Bass

Lake Powell





Lake Powell

For September 30th, 2020
Snowpack is 106% of avg
TotalPrecip is 75.00% of avg

Lake Powell is currently 464.11 feet deep at the dam
Water Summary
Today is day 366 of 366 for the Water Year 2020. We are 100% through the Water Year.
Last Reading: 3596.11 on Sep 29, 2020
Powell was last within 2" of this elevation on Sep 7, 2018
There are currently 3,709,068,083,324 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 103.89 feet below Full Pool (Elevation 3,700)

By content, Lake Powell is 46.8% of Full Pool (24,322,000 af)
Total inflows for water year 2020: 6,487,245 acre feet

This is 60.91% of the September 29th average of 10,650,337 acre feet
Total releases for water year 2020: 8,175,588 acre feet

This is 109.01% of the minimum required of 7,500,000 acre feet
During WY 2020, water storage has fallen by 1,881,253 AF and total outflows have exceeded total inflows by 1,688,343 AF
The 28 tracked reservoirs above Lake Powell are currently at 72.98% of capacity. Click for Details
Inflows for WY 2020 are 55.77% of WY 2019         Rivers feeding Lake Powell are running at 55.91% of the Sep 30th avg. Click for Details

Lake Powell is down -19.38 feet from one year ago.    Lake Powell is at low for water year and down 19.12 feet from the high.

View Acre Feet     Last 14 Measurements
Lake Powell is down -1.61 feet over these measurements

DATE MEASURED ELEVATION CHANGE CONTENT INFLOW (cfs) OUTFLOW (cfs) HIGH TEMP LOW TEMP WATER TEMP
Tue, Sep 29, 2020
3596.11
-0.15
11382697
3540
10420
n/a
n/a
n/a
Mon, Sep 28, 2020
3596.26
-0.17
11396727
2410
10314
n/a
n/a
n/a
Sun, Sep 27, 2020
3596.43
-0.08
11412640
5560
8879
n/a
n/a
n/a
Sat, Sep 26, 2020
3596.51
-0.10
11420134
5855
10197
n/a
n/a
n/a
Fri, Sep 25, 2020
3596.61
-0.16
11429506
2927
10334
n/a
n/a
n/a
Thu, Sep 24, 2020
3596.77
-0.16
11444510
3049
10463
75.0
62.0
72.0
Wed, Sep 23, 2020
3596.93
-0.11
11459527
5567
10429
70.0
61.0
72.0
Tue, Sep 22, 2020
3597.04
-0.10
11469859
5949
10301
79.0
69.0
72.0
Mon, Sep 21, 2020
3597.14
-0.13
11479256
4423
10315
90.0
66.0
72.0
Sun, Sep 20, 2020
3597.27
-0.08
11491480
5534
8867
93.0
67.0
72.0
Sat, Sep 19, 2020
3597.35
-0.13
11499006
4364
10262
92.0
72.0
72.0
Fri, Sep 18, 2020
3597.48
-0.13
11511243
4645
10546
92.0
63.0
73.0
Thu, Sep 17, 2020
3597.61
-0.11
11523488
5307
10185
92.0
61.0
73.0
Wed, Sep 16, 2020
3597.72
-0.11
11533856
5613
10493
93.0
65.0
73.0
Averages of List
3596.95
-0.12
11460995
4625
10143
86.2
65.1
72.3

Averages for September 30th

AVERAGE TYPE ELEVATION CHANGE CONTENT INFLOW (cfs) OUTFLOW (cfs) HIGH TEMP LOW TEMP WATER TEMP
Since Filled
3646.69
-0.08
17253433
9409
12600
82.7
55.6
72.5
All-Time
3633.34
-0.07
15719629
9177
11862
83.0
56.1
72.5

Last 10 September 30th's data records

DATE MEASURED ELEVATION CHG vs TODAY CONTENT INFLOW (cfs) OUTFLOW (cfs) HIGH TEMP LOW TEMP WATER TEMP
Mon, Sep 30, 2019
3615.36
19.25
13277399
5464
11926
78.0
53.0
72.0
Sun, Sep 30, 2018
3592.35
-3.76
11034585
8318
10073
89.0
64.0
73.0
Sat, Sep 30, 2017
3628.31
32.20
14664438
8188
9660
84.0
57.0
71.0
Fri, Sep 30, 2016
3610.93
14.82
12824140
10300
11662
79.0
61.0
71.0
Wed, Sep 30, 2015
3606.01
9.90
12332870
7530
12622
91.0
66.9
75.0
Tue, Sep 30, 2014
3605.53
9.42
12285625
15794
10703
n/a
n/a
75.0
Mon, Sep 30, 2013
3591.25
-4.86
10934043
8122
10862
82.9
54.0
69.0
Sun, Sep 30, 2012
3621.56
25.45
13929222
5471
8062
87.1
60.1
73.0
Fri, Sep 30, 2011
3653.01
56.90
17593300
10859
15534
89.1
68.0
74.0
Thu, Sep 30, 2010
3633.66
37.55
15266787
7853
8047
89.1
57.0
73.0
Averages of List
3615.80
-0.10
13414241
8790
10915
85.5
60.1
72.6


Accessibility of Primitive Launches and Other Sites
As of Tuesday, September 29th, 2020 where elevation was 3596.11'

SITE/LAUNCH NAME MINIMUM SAFE
ELEVATION
ABSOLUTE MINIMUM
USABLE ELEVATION
CURRENT LEVEL VS.
ABSOLUTE MINIMUM
CURRENT ACCESSIBILITY
Halls Crossing Launch
3550.00
3548.00
48.11 Above
Open and Usable
Wahweap
3558.00
3556.00
40.11 Above
Open and Usable
Bullfrog (Main Launch)
3578.00
3576.00
20.11 Above
Open and Usable
Castle Rock Cut-Off
3583.00
3580.00
16.11 Above
Open and Usable
Antelope Point
3588.00
3587.00
9.11 Above
Open and Usable
Dominguez Butte Cut-Off
3602.00
3600.00
3.89 Below
Unusable, go to main marinas
Gunsight to Padre Bay Cut-Off
3613.00
3609.00
12.89 Below
Unusable, go to main marinas
Hite Marina
3650.00
3645.00
48.89 Below
Unusable, go to main marinas
Farley Canyon
3653.00
3649.00
52.89 Below
Unusable, go to main marinas
Copper Canyon
3663.00
3660.00
63.89 Below
Unusable, go to main marinas
Bullfrog to Halls Creek Cut-Off
3670.00
3668.00
71.89 Below
Unusable, use Main Channel
Piute Farms
3682.00
3680.00
83.89 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 1.123 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