Lake Powell, Houseboating, Glen Canyon, Striped Bass



Lake Powell

Lake Powell

For August 20th, 2018
Snowpack is 61% of avg
TotalPrecip is 67.00% of avg

Lake Powell is currently 467.61 feet deep at the dam
Water Summary
Today is day 325 of 365 for the Water Year 2018. We are 89% through the Water Year.
Last Reading: 3599.61 on Aug 19, 2018
Powell was last within 2" of this elevation on Jan 6, 2017
There are currently 3,816,668,787,100 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 100.39 feet below Full Pool (Elevation 3,700)

By content, Lake Powell is 48.16% of Full Pool (24,322,000 af)
Total inflows for water year 2018: 5,027,595 acre feet

This is 50.57% of the August 19th average of 9,941,605 acre feet
Total releases for water year 2018: 7,956,118 acre feet

This is 96.67% of the minimum required of 8,230,000 acre feet
During WY 2018, water storage has fallen by 2,962,626 AF and total outflows have exceeded total inflows by 2,928,523 AF
The 28 tracked reservoirs above Lake Powell are currently at 73.39% of capacity. Click for Details
Inflows for WY 2018 are 46.18% of WY 2017         Rivers feeding Lake Powell are running at 61.83% of the Aug 21st avg. Click for Details


Powell is down -33.05 feet from one year ago


View Acre Feet     Last 14 Measurements
Powell is down -2.91 feet over these measurements

DATE MEASURED ELEVATION CHANGE CONTENT INFLOW (cfs) OUTFLOW (cfs) HIGH TEMP LOW TEMP WATER TEMP
Sun, Aug 19, 2018
3599.61
-0.17
11712911
3503
11506
n/a
n/a
n/a
Sat, Aug 18, 2018
3599.78
-0.13
11729102
5622
11555
n/a
n/a
n/a
Fri, Aug 17, 2018
3599.91
-0.27
11741492
2535
15747
n/a
n/a
n/a
Thu, Aug 16, 2018
3600.18
-0.27
11767253
2551
15783
n/a
n/a
n/a
Wed, Aug 15, 2018
3600.45
-0.26
11793053
3023
15752
n/a
n/a
n/a
Tue, Aug 14, 2018
3600.71
-0.19
11817933
6462
15556
n/a
n/a
n/a
Mon, Aug 13, 2018
3600.90
-0.28
11836137
1959
15765
n/a
n/a
n/a
Sun, Aug 12, 2018
3601.18
-0.15
11862999
2797
9820
n/a
n/a
n/a
Sat, Aug 11, 2018
3601.33
-0.21
11877406
1373
11544
n/a
n/a
n/a
Fri, Aug 10, 2018
3601.54
-0.23
11897596
4571
15803
n/a
n/a
n/a
Thu, Aug 09, 2018
3601.77
-0.29
11919736
1290
15686
0.0
0.0
79.0
Wed, Aug 08, 2018
3602.06
-0.21
11947691
5439
15650
0.0
0.0
79.0
Tue, Aug 07, 2018
3602.27
-0.25
11967962
3466
15794
0.0
0.0
79.0
Mon, Aug 06, 2018
3602.52
-1.07
11992124
4914
15677
0.0
0.0
79.0
Averages of List
3602.16
-0.46
11956878.25
3777.25
15701.75
0.00
0.00
79.0

Averages for August 21st

AVERAGE TYPE ELEVATION CHANGE CONTENT INFLOW (cfs) OUTFLOW (cfs) HIGH TEMP LOW TEMP WATER TEMP
Since Filled
3652.58
-0.14
17997095.16
8987.53
16208.61
93.26
67.94
78.8
All-Time
3638.24
-0.14
16302794.91
9020.76
15438.31
93.12
67.68
78.8

Last 10 August 21st's data records

DATE MEASURED ELEVATION CHANGE CONTENT INFLOW (cfs) OUTFLOW (cfs) HIGH TEMP LOW TEMP WATER TEMP
Mon, Aug 21, 2017
3632.41
-0.10
15124498
9725
14886
91.0
73.0
80.0
Sun, Aug 21, 2016
3615.19
-0.12
13259814
7603
13456
91.0
68.0
78.0
Fri, Aug 21, 2015
3610.49
-0.13
12779686
7218
13487
97.0
73.0
79.0
Thu, Aug 21, 2014
3606.64
-0.15
12395064
6190
13416
84.9
64.9
78.0
Wed, Aug 21, 2013
3590.74
-0.12
10887628
8332
13507
91.9
77.0
78.0
Tue, Aug 21, 2012
3624.99
-0.12
14299369
7413
13567
93.9
75.9
80.0
Sun, Aug 21, 2011
3657.52
-0.24
18169940
12349
24807
97.0
73.9
80.0
Sat, Aug 21, 2010
3635.69
-0.04
15499883
9370
12713
98.1
69.1
80.0
Fri, Aug 21, 2009
3638.66
-0.14
15845417
7785
13222
100.9
68.0
75.0
Thu, Aug 21, 2008
3630.88
-0.16
14951625
8655
14753
96.1
66.9
80.0
Averages of List
3624.32
-0.13
14321292.40
8464.00
14781.40
94.18
70.97
78.8


Accessibility of Primitive Launches and Other Sites
As of Sunday, August 19th, 2018 where elevation was 3599.61'

SITE/LAUNCH NAME MINIMUM SAFE
ELEVATION
ABSOLUTE MINIMUM
USABLE ELEVATION
CURRENT LEVEL VS.
ABSOLUTE MINIMUM
CURRENT ACCESSIBILITY
Castle Rock Cut-Off
3583.00
3580.00
19.61 Above
Open and Usable
Antelope Point
3592.00
3590.00
9.61 Above
Open and Usable
Hite Marina
3650.00
3645.00
45.39 Below
Unusable, go to main marinas
Farley Canyon
3653.00
3649.00
49.39 Below
Unusable, go to main marinas
Copper Canyon
3663.00
3660.00
60.39 Below
Unusable, go to main marinas
Bullfrog to Halls Creek Cut-Off
3670.00
3668.00
68.39 Below
Unusable, use Main Channel
Piute Farms
3682.00
3680.00
80.39 Below
Unusable, go to main marinas
Gunsite Pass Cut-Off
3685.00
3680.00
80.39 Below
Unusable, use Main Channel
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



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Copyright Summit Technologies, Inc.
Water data courtesy of US Bureau of Reclamation
*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 - 2018



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Lake Powell, Houseboating, Glen Canyon, Striped Bass