Lake Powell Water Database

Lake Powell, Houseboating, Glen Canyon, Striped Bass

Lake Powell

Lake Powell

For April 23rd, 2018
Snowpack is 116% of avg
TotalPrecip is 93.00% of avg

Lake Powell is currently 478.22 feet deep at the dam

Water Summary Today is day 205 of 365 for the Water Year 2018. We are 56% through the Water Year.
Last Reading: 3610.22 on Apr 22, 2018
Powell was last within 2" of this elevation on May 16, 2017 There are currently 4,155,406,662,562 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 89.78 feet below Full Pool (Elevation 3,700) By content, Lake Powell is 52.43% of Full Pool (24,322,000 af)	Total inflows for water year 2018: 2,945,878 acre feet This is 75.19% of the April 22nd average of 3,917,957 acre feet	Total releases for water year 2018: 4,905,543 acre feet This is 59.61% of the minimum required of 8,230,000 acre feet
During WY 2018, water storage has fallen by 1,923,079 AF and total outflows have exceeded total inflows by 1,959,665 AF
The 28 tracked reservoirs above Lake Powell are currently at 76.9% of capacity. Click for Details
Inflows for WY 2018 are 70.54% of WY 2017 Rivers feeding Lake Powell are running at 38.98% of the Apr 23rd avg. Click for Details

View Acre Feet Last 14 Measurements
Powell is down -1.19 feet over these measurements

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

Sun, Apr 22, 2018 3610.22 -0.04 12752458 8756 10538 80.0 51.0 n/a

Sat, Apr 21, 2018 3610.26 -0.10 12756489 6561 11637 73.0 41.0 54.0

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

Thu, Apr 19, 2018 3610.46 -0.10 12776658 7235 12317 75.0 45.0 54.0

Wed, Apr 18, 2018 3610.56 -0.12 12786751 6504 12688 64.0 37.0 54.0

Tue, Apr 17, 2018 3610.68 -0.09 12798869 7052 11589 64.0 44.0 53.0

Mon, Apr 16, 2018 3610.77 -0.07 12807963 8792 12230 80.0 55.0 55.0

Sun, Apr 15, 2018 3610.84 -0.05 12815039 7328 9666 75.0 44.0 55.0

Sat, Apr 14, 2018 3610.89 -0.06 12820094 8705 11595 66.0 39.0 54.0

Fri, Apr 13, 2018 3610.95 -0.10 12826163 7131 12225 59.0 39.0 54.0

Thu, Apr 12, 2018 3611.05 -0.13 12836281 5338 12089 73.0 44.0 54.0

Wed, Apr 11, 2018 3611.18 -0.11 12849443 6591 12243 87.0 53.0 55.0

Tue, Apr 10, 2018 3611.29 -0.12 12860587 6193 12400 75.0 48.0 54.0

Mon, Apr 09, 2018 3611.41 -0.12 12872752 6064 12275 70.0 50.0 54.0

Averages of List 3610.78 -0.09 12809008.43 7144.79 11882.00 71.14 45.07 54.1

Averages for April 23rd

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

Since Filled 3636.75 0.09 16059223.59 16409.24 12553.49 73.92 47.86 56.5

All-Time 3620.30 0.06 14701589.39 16017.47 12901.25 74.40 47.26 56.5

Last 10 April 23rd's data records

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

Sun, Apr 23, 2017 3601.90 0.36 11932262 28492 9228 82.0 48.0 57.0

Sat, Apr 23, 2016 3591.67 0.06 10972363 14038 10692 70.0 57.9 59.0

Thu, Apr 23, 2015 3590.42 -0.05 10858569 8267 10379 73.0 52.0 59.0

Wed, Apr 23, 2014 3575.42 0.26 9552260 20631 8507 68.0 53.1 57.0

Tue, Apr 23, 2013 3597.10 -0.15 11475496 2143 9445 63.0 48.0 55.0

Mon, Apr 23, 2012 3635.85 -0.07 15518361 6746 10656 93.0 61.0 62.0

Sat, Apr 23, 2011 3610.47 0.16 12777667 20139 15444 66.0 51.1 54.0

Fri, Apr 23, 2010 3619.37 0.17 13696604 16632 10587 57.9 37.0 57.0

Thu, Apr 23, 2009 3609.92 0.06 12722249 13861 10223 84.0 55.9 58.0

Wed, Apr 23, 2008 3592.12 0.23 11013525 20530 13135 77.0 50.0 54.0

Averages of List 3602.42 0.10 12051935.60 15147.90 10829.60 73.39 51.40 57.2

Accessibility of Primitive Launches and Other Sites
As of Sunday, April 22nd, 2018 where elevation was 3610.22'

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 30.22 Above Open and Usable

Antelope Point 3592.00 3590.00 20.22 Above Open and Usable

Hite Marina 3650.00 3645.00 34.78 Below Unusable, go to main marinas

Farley Canyon 3653.00 3649.00 38.78 Below Unusable, go to main marinas

Copper Canyon 3663.00 3660.00 49.78 Below Unusable, go to main marinas

Bullfrog to Halls Creek Cut-Off 3670.00 3668.00 57.78 Below Unusable, use Main Channel

Piute Farms 3682.00 3680.00 69.78 Below Unusable, go to main marinas

Gunsite Pass Cut-Off 3685.00 3680.00 69.78 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