Lake Powell Water Database

Lake Powell, Houseboating, Glen Canyon, Striped Bass

Lake Powell

Lake Powell

For April 19th, 2018
Snowpack is 73% of avg
TotalPrecip is 72.00% of avg

Lake Powell is currently 478.46 feet deep at the dam

Water Summary Today is day 202 of 365 for the Water Year 2018. We are 55% through the Water Year.
Last Reading: 3610.46 on Apr 19, 2018
Powell was last within 2" of this elevation on Oct 16, 2016 There are currently 4,163,292,267,144 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 89.54 feet below Full Pool (Elevation 3,700) By content, Lake Powell is 52.53% of Full Pool (24,322,000 af)	Total inflows for water year 2018: 2,900,071 acre feet This is 75.83% of the April 19th average of 3,824,617 acre feet	Total releases for water year 2018: 4,836,059 acre feet This is 58.76% of the minimum required of 8,230,000 acre feet
During WY 2018, water storage has fallen by 1,898,879 AF and total outflows have exceeded total inflows by 1,935,988 AF
The 28 tracked reservoirs above Lake Powell are currently at 76.93% of capacity. Click for Details
Inflows for WY 2018 are 72.48% of WY 2017 Rivers feeding Lake Powell are running at 41.37% of the Apr 20th 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

Thu, Apr 19, 2018 3610.46 -0.10 12776658 7235 12317 73.0 46.0 n/a

Wed, Apr 18, 2018 3610.56 -0.12 12786751 6504 12688 64.0 37.0 n/a

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

Sun, Apr 08, 2018 3611.53 -0.07 12884924 6440 9891 73.0 57.0 54.0

Sat, Apr 07, 2018 3611.60 -0.05 12892027 9788 12135 87.0 57.0 54.0

Fri, Apr 06, 2018 3611.65 -0.11 12897103 6312 11977 82.0 60.0 53.0

Averages of List 3611.06 -0.09 12837475.29 7105.21 11808.57 73.43 48.07 54.0

Averages for April 20th

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

Since Filled 3636.49 0.08 16030120.22 15765.19 12448.59 73.09 47.21 56.2

All-Time 3620.09 0.06 14676823.98 15241.87 12368.87 71.87 45.77 56.2

Last 10 April 20th's data records

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

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

Sun, Apr 20, 2008 3591.67 0.11 10972356 15417 11059 73.0 51.1 53.0

Averages of List 3602.14 0.09 12025297.20 14529.90 10516.50 78.21 51.34 56.0

Accessibility of Primitive Launches and Other Sites
As of Thursday, April 19th, 2018 where elevation was 3610.46'

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 30.46 Above Open and Usable

Antelope Point 3592.00 3590.00 20.46 Above Open and Usable

Hite Marina 3650.00 3645.00 34.54 Below Unusable, go to main marinas

Farley Canyon 3653.00 3649.00 38.54 Below Unusable, go to main marinas

Copper Canyon 3663.00 3660.00 49.54 Below Unusable, go to main marinas

Bullfrog to Halls Creek Cut-Off 3670.00 3668.00 57.54 Below Unusable, use Main Channel

Piute Farms 3682.00 3680.00 69.54 Below Unusable, go to main marinas

Gunsite Pass Cut-Off 3685.00 3680.00 69.54 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