Lake Powell, Houseboating, Glen Canyon, Striped Bass

Lake Powell





Lake Powell

For August 15th, 2020
Snowpack is 56% of avg
TotalPrecip is 81.00% of avg

Lake Powell is currently 471.55 feet deep at the dam
Water Summary
Today is day 320 of 366 for the Water Year 2020. We are 87% through the Water Year.
Last Reading: 3603.55 on Aug 13, 2020
Powell was last within 2" of this elevation on Feb 21, 2020
There are currently 3,940,201,996,497 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 96.45 feet below Full Pool (Elevation 3,700)

By content, Lake Powell is 49.72% of Full Pool (24,322,000 af)
Total inflows for water year 2020: 6,116,148 acre feet

This is 62.38% of the August 13th average of 9,804,524 acre feet
Total releases for water year 2020: 7,112,000 acre feet

This is 94.83% of the minimum required of 7,500,000 acre feet
During WY 2020, water storage has fallen by 1,171,930 AF and total outflows have exceeded total inflows by 995,852 AF
The 28 tracked reservoirs above Lake Powell are currently at 79.02% of capacity. Click for Details
Inflows for WY 2020 are 55.49% of WY 2019         Rivers feeding Lake Powell are running at 47.68% of the Aug 15th avg. Click for Details

Lake Powell is down -17.59 feet from one year ago.    Lake Powell is up 4.29 feet from the low for water year.

View Acre Feet     Last 14 Measurements
Lake Powell is down -2.70 feet over these measurements

DATE MEASURED ELEVATION CHANGE CONTENT INFLOW (cfs) OUTFLOW (cfs) HIGH TEMP LOW TEMP WATER TEMP
Thu, Aug 13, 2020
3603.55
-0.24
12092020
3048
14931
n/a
n/a
n/a
Wed, Aug 12, 2020
3603.79
-0.25
12115377
2369
14798
n/a
n/a
n/a
Tue, Aug 11, 2020
3604.04
-0.22
12139740
4221
15071
n/a
n/a
n/a
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
Averages of List
3604.98
-0.20
12231831
3551
13571
95.3
75.7
79.9

Averages for August 15th

AVERAGE TYPE ELEVATION CHANGE CONTENT INFLOW (cfs) OUTFLOW (cfs) HIGH TEMP LOW TEMP WATER TEMP
Since Filled
3651.29
-0.14
17840241
9484
16869
95.5
69.8
79.3
All-Time
3638.03
-0.12
16273100
9599
15361
95.1
69.5
79.3

Last 10 August 15th's data records

DATE MEASURED ELEVATION CHG vs TODAY CONTENT INFLOW (cfs) OUTFLOW (cfs) HIGH TEMP LOW TEMP WATER TEMP
Thu, Aug 15, 2019
3620.91
17.36
13859881
9388
15989
104.0
73.0
81.0
Wed, Aug 15, 2018
3600.45
-3.10
11793053
3023
15752
94.0
74.0
79.0
Tue, Aug 15, 2017
3633.17
29.62
15210897
9639
14820
86.0
72.0
80.0
Mon, Aug 15, 2016
3616.32
12.77
13376985
9616
14935
98.0
71.0
80.0
Sat, Aug 15, 2015
3611.39
7.84
12870724
8270
12358
99.0
73.9
79.0
Fri, Aug 15, 2014
3607.23
3.68
12453500
11645
13488
93.0
70.0
78.0
Thu, Aug 15, 2013
3591.80
-11.75
10984241
5766
13459
96.1
70.0
77.0
Wed, Aug 15, 2012
3625.99
22.44
14408626
3322
14285
98.1
73.0
80.0
Mon, Aug 15, 2011
3658.86
55.31
18343788
14188
24699
97.0
71.1
79.0
Sun, Aug 15, 2010
3636.06
32.51
15542638
8846
12328
100.0
70.0
80.0
Averages of List
3620.22
-0.14
13884433
8370
15211
96.5
71.8
79.3


Accessibility of Primitive Launches and Other Sites
As of Thursday, August 13th, 2020 where elevation was 3603.55'

SITE/LAUNCH NAME MINIMUM SAFE
ELEVATION
ABSOLUTE MINIMUM
USABLE ELEVATION
CURRENT LEVEL VS.
ABSOLUTE MINIMUM
CURRENT ACCESSIBILITY
Halls Crossing Launch
3550.00
3548.00
55.55 Above
Open and Usable
Wahweap
3558.00
3556.00
47.55 Above
Open and Usable
Bullfrog (Main Launch)
3578.00
3576.00
27.55 Above
Open and Usable
Castle Rock Cut-Off
3583.00
3580.00
23.55 Above
Open and Usable
Antelope Point
3588.00
3587.00
16.55 Above
Open and Usable
Dominguez Butte Cut-Off
3602.00
3600.00
3.55 Above
Open and Usable
Gunsight to Padre Bay Cut-Off
3613.00
3609.00
5.45 Below
Unusable, go to main marinas
Hite Marina
3650.00
3645.00
41.45 Below
Unusable, go to main marinas
Farley Canyon
3653.00
3649.00
45.45 Below
Unusable, go to main marinas
Copper Canyon
3663.00
3660.00
56.45 Below
Unusable, go to main marinas
Bullfrog to Halls Creek Cut-Off
3670.00
3668.00
64.45 Below
Unusable, use Main Channel
Piute Farms
3682.00
3680.00
76.45 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 1.433 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