Lake Powell Water Database

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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Detailed Map of Powell
15 Day Weather Forecast
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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

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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Lake Powell, Houseboating, Glen Canyon, Striped Bass