Lake Powell Water Database

Lake Powell, Houseboating, Glen Canyon, Striped Bass

Lake Powell

Lake Powell

For April 20th, 2019
Snowpack is 137% of avg
TotalPrecip is 119.00% of avg

Lake Powell is currently 436.76 feet deep at the dam

Water Summary Today is day 202 of 365 for the Water Year 2019. We are 55% through the Water Year.
Last Reading: 3568.76 on Apr 19, 2019
Powell was last within 2" of this elevation on Apr 16, 2019 There are currently 2,935,019,092,683 gallons of water in Lake Powell!

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Detailed Map of Powell
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Elevation & Content	Water Inflow Data	Glen Canyon Dam Release Data
Lake Powell is 131.24 feet below Full Pool (Elevation 3,700) By content, Lake Powell is 37.03% of Full Pool (24,322,000 af)	Total inflows for water year 2019: 2,718,639 acre feet This is 71.46% of the April 19th average of 3,804,508 acre feet	Total releases for water year 2019: 4,803,496 acre feet This is 64.05% of the minimum required of 7,500,000 acre feet
During WY 2019, water storage has fallen by 2,009,030 AF and total outflows have exceeded total inflows by 2,084,857 AF
The 28 tracked reservoirs above Lake Powell are currently at 68.87% of capacity. Click for Details
Inflows for WY 2019 are 93.74% of WY 2018 Rivers feeding Lake Powell are running at 74.61% of the Apr 20th avg. Click for Details

View Acre Feet Last 14 Measurements
Powell is down -0.08 feet over these measurements

DATE MEASURED ELEVATION CHANGE CONTENT INFLOW (cfs) OUTFLOW (cfs) HIGH TEMP LOW TEMP WATER TEMP

Fri, Apr 19, 2019 3568.76 -0.01 9007231 12473 12608 n/a n/a n/a

Thu, Apr 18, 2019 3568.77 0.01 9008033 12630 11891 n/a n/a n/a

Wed, Apr 17, 2019 3568.76 0.01 9007231 11836 11096 0.0 0.0 55.0

Tue, Apr 16, 2019 3568.75 0.04 9006428 14286 12237 0.0 0.0 55.0

Mon, Apr 15, 2019 3568.71 0.00 9003220 12880 12578 0.0 0.0 55.0

Sun, Apr 14, 2019 3568.71 0.05 9003220 13852 11367 0.0 0.0 55.0

Sat, Apr 13, 2019 3568.66 0.08 8999211 15680 11887 0.0 0.0 55.0

Fri, Apr 12, 2019 3568.58 0.02 8992798 13634 12460 0.0 0.0 55.0

Thu, Apr 11, 2019 3568.56 0.05 8991196 14723 12240 0.0 0.0 55.0

Wed, Apr 10, 2019 3568.51 -0.13 8987190 6412 11782 0.0 0.0 54.0

Tue, Apr 09, 2019 3568.64 -0.06 8997607 9961 12279 0.0 0.0 55.0

Mon, Apr 08, 2019 3568.70 -0.07 9002418 9744 12500 0.0 0.0 56.0

Sun, Apr 07, 2019 3568.77 -0.07 9008033 8171 10927 0.0 0.0 55.0

Sat, Apr 06, 2019 3568.84 -0.02 9013650 10873 11445 0.0 0.0 54.0

Averages of List 3568.68 -0.01 9001016.83 11837.67 11899.83 0.00 0.00 54.9

Averages for April 20th

AVERAGE TYPE ELEVATION CHANGE CONTENT INFLOW (cfs) OUTFLOW (cfs) HIGH TEMP LOW TEMP WATER TEMP

Since Filled 3635.81 0.08 15944237.34 15554.97 12459.32 72.61 47.04 56.1

All-Time 3619.92 0.06 14642092.11 15108.57 12377.57 71.57 45.68 56.1

Last 10 April 20th's data records

DATE MEASURED ELEVATION CHANGE CONTENT INFLOW (cfs) OUTFLOW (cfs) HIGH TEMP LOW TEMP WATER TEMP

Fri, Apr 20, 2018 3610.36 -0.10 12766571 7777 12856 55.0 41.0 54.0

Thu, Apr 20, 2017 3600.87 0.37 11833261 30758 11082 80.0 51.0 57.0

Wed, Apr 20, 2016 3591.44 0.09 10951368 16331 11500 82.0 52.0 58.0

Mon, Apr 20, 2015 3590.53 -0.06 10868553 7769 10377 81.0 48.0 57.0

Sun, Apr 20, 2014 3574.93 0.15 9511428 14623 7511 79.0 53.1 57.0

Sat, Apr 20, 2013 3597.26 -0.06 11490539 5889 8586 71.1 53.1 54.0

Fri, Apr 20, 2012 3635.93 0.01 15527606 11607 10483 79.0 53.1 56.0

Wed, Apr 20, 2011 3610.05 0.05 12735334 16110 14747 79.0 51.1 54.0

Tue, Apr 20, 2010 3618.96 0.18 13653354 15862 9407 77.0 52.0 60.0

Mon, Apr 20, 2009 3609.79 0.05 12709173 10933 10413 81.0 48.9 54.0

Averages of List 3604.01 0.07 12204718.70 13765.90 10696.20 76.41 50.33 56.1

Accessibility of Primitive Launches and Other Sites
As of Friday, April 19th, 2019 where elevation was 3568.76'

SITE/LAUNCH NAME MINIMUM SAFE
ELEVATION ABSOLUTE MINIMUM
USABLE ELEVATION CURRENT LEVEL VS.
ABSOLUTE MINIMUM CURRENT ACCESSIBILITY

Halls Crossing Launch 3550.00 3548.00 20.76 Above Open and Usable

Wahweap 3558.00 3556.00 12.76 Above Open and Usable

Bullfrog Launch 3570.00 3568.00 0.76 Above Looking bad, not likely. Go very slow!

Castle Rock Cut-Off 3583.00 3580.00 11.24 Below Unusable, use Main Channel

Antelope Point 3588.00 3587.00 18.24 Below Unusable, go to main marinas

Hite Marina 3650.00 3645.00 76.24 Below Unusable, go to main marinas

Farley Canyon 3653.00 3649.00 80.24 Below Unusable, go to main marinas

Copper Canyon 3663.00 3660.00 91.24 Below Unusable, go to main marinas

Bullfrog to Halls Creek Cut-Off 3670.00 3668.00 99.24 Below Unusable, use Main Channel

Gunsite Pass Cut-Off 3685.00 3680.00 111.24 Below Unusable, use Main Channel

Piute Farms 3682.00 3680.00 111.24 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

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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