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 478.56 feet deep at the dam

Water Summary Today is day 201 of 365 for the Water Year 2018. We are 55% through the Water Year.
Last Reading: 3610.56 on Apr 18, 2018
Powell was last within 2" of this elevation on Oct 13, 2016 There are currently 4,166,581,085,617 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 89.44 feet below Full Pool (Elevation 3,700) By content, Lake Powell is 52.57% of Full Pool (24,322,000 af)	Total inflows for water year 2018: 2,885,721 acre feet This is 76.02% of the April 18th average of 3,795,808 acre feet	Total releases for water year 2018: 4,811,628 acre feet This is 58.46% of the minimum required of 8,230,000 acre feet
During WY 2018, water storage has fallen by 1,888,786 AF and total outflows have exceeded total inflows by 1,925,907 AF
The 28 tracked reservoirs above Lake Powell are currently at 76.96% of capacity. Click for Details
Inflows for WY 2018 are 73.09% of WY 2017 Rivers feeding Lake Powell are running at 43.6% of the Apr 19th avg. Click for Details

View Acre Feet Last 14 Measurements
Powell is down -1.20 feet over these measurements

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

Wed, Apr 18, 2018 3610.56 -0.12 12786751 6504 12688 64.0 39.0 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

Thu, Apr 05, 2018 3611.76 -0.11 12908274 6704 12372 77.0 50.0 52.0

Averages of List 3611.15 -0.09 12846876.43 7067.29 11812.50 73.71 48.50 53.9

Averages for April 19th

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

Since Filled 3636.41 0.06 16020801.24 15112.73 12467.84 72.33 45.76 56.2

All-Time 3620.03 0.04 14668815.22 14615.96 12468.55 71.28 44.15 56.2

Last 10 April 19th's data records

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

Wed, Apr 19, 2017 3600.50 0.29 11797834 26426 10950 78.0 57.0 59.0

Tue, Apr 19, 2016 3591.35 0.09 10943159 16425 11597 73.9 45.0 58.0

Sun, Apr 19, 2015 3590.59 -0.06 10874001 6535 9144 75.0 51.0 56.0

Sat, Apr 19, 2014 3574.78 0.10 9498951 12697 7854 73.9 55.9 57.0

Fri, Apr 19, 2013 3597.32 -0.09 11496183 5240 9476 66.0 37.0 54.0

Thu, Apr 19, 2012 3635.92 -0.02 15526451 9948 10711 82.0 57.9 56.0

Tue, Apr 19, 2011 3610.00 0.02 12730300 15454 13937 75.2 51.1 54.0

Mon, Apr 19, 2010 3618.78 0.03 13634394 13435 10366 78.1 53.1 58.0

Sun, Apr 19, 2009 3609.74 0.03 12704147 10865 9810 73.9 46.9 55.0

Sat, Apr 19, 2008 3591.56 0.15 10962324 16806 11803 79.0 46.0 53.0

Averages of List 3602.05 0.05 12016774.40 13383.10 10564.80 75.50 50.09 56.0

Accessibility of Primitive Launches and Other Sites
As of Wednesday, April 18th, 2018 where elevation was 3610.56'

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 30.56 Above Open and Usable

Antelope Point 3592.00 3590.00 20.56 Above Open and Usable

Hite Marina 3650.00 3645.00 34.44 Below Unusable, go to main marinas

Farley Canyon 3653.00 3649.00 38.44 Below Unusable, go to main marinas

Copper Canyon 3663.00 3660.00 49.44 Below Unusable, go to main marinas

Bullfrog to Halls Creek Cut-Off 3670.00 3668.00 57.44 Below Unusable, use Main Channel

Piute Farms 3682.00 3680.00 69.44 Below Unusable, go to main marinas

Gunsite Pass Cut-Off 3685.00 3680.00 69.44 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