Lake Powell Water Database

Lake Powell, Houseboating, Glen Canyon, Striped Bass

Lake Powell

Lake Powell

For July 18th, 2018
Snowpack is 41% of avg
TotalPrecip is 68.00% of avg

Lake Powell is currently 474.65 feet deep at the dam

Water Summary Today is day 291 of 365 for the Water Year 2018. We are 80% through the Water Year.
Last Reading: 3606.65 on Jul 17, 2018
Powell was last within 2" of this elevation on Nov 12, 2016 There are currently 4,039,271,584,010 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 93.35 feet below Full Pool (Elevation 3,700) By content, Lake Powell is 50.97% of Full Pool (24,322,000 af)	Total inflows for water year 2018: 4,793,649 acre feet This is 52.43% of the July 17th average of 9,143,033 acre feet	Total releases for water year 2018: 7,028,316 acre feet This is 85.4% of the minimum required of 8,230,000 acre feet
During WY 2018, water storage has fallen by 2,279,484 AF and total outflows have exceeded total inflows by 2,234,667 AF
The 28 tracked reservoirs above Lake Powell are currently at 78.3% of capacity. Click for Details
Inflows for WY 2018 are 46.82% of WY 2017 Rivers feeding Lake Powell are running at 43.16% of the Jul 18th avg. Click for Details

View Acre Feet Last 14 Measurements
Powell is down -2.58 feet over these measurements

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

Tue, Jul 17, 2018 3606.65 -0.27 12396053 1542 15238 n/a n/a n/a

Mon, Jul 16, 2018 3606.92 -0.13 12422774 9227 15383 0.0 0.0 79.0

Sun, Jul 15, 2018 3607.05 -0.17 12435652 2978 11299 0.0 0.0 79.0

Sat, Jul 14, 2018 3607.22 -0.12 12452508 5689 11314 0.0 0.0 79.0

Fri, Jul 13, 2018 3607.34 -0.24 12464414 3282 15403 0.0 0.0 79.0

Thu, Jul 12, 2018 3607.58 -0.22 12488251 4176 15228 0.0 0.0 78.0

Wed, Jul 11, 2018 3607.80 -0.15 12510128 8060 15329 0.0 0.0 79.0

Tue, Jul 10, 2018 3607.95 -0.29 12525059 460 15333 0.0 0.0 78.0

Mon, Jul 09, 2018 3608.24 -0.15 12553958 8107 15392 0.0 0.0 78.0

Sun, Jul 08, 2018 3608.39 -0.25 12568924 -1544 11187 0.0 0.0 78.0

Sat, Jul 07, 2018 3608.64 -0.11 12593893 6122 11244 0.0 0.0 77.0

Fri, Jul 06, 2018 3608.75 -0.26 12604889 2161 15461 0.0 0.0 76.0

Thu, Jul 05, 2018 3609.01 -0.22 12630907 4187 15321 0.0 0.0 75.0

Wed, Jul 04, 2018 3609.23 -0.15 12652950 3831 11152 0.0 0.0 75.0

Averages of List 3608.01 -0.19 12531100.54 4364.31 13772.77 0.00 0.00 77.6

Averages for July 18th

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

Since Filled 3656.51 -0.07 18485861.53 17448.92 16877.39 98.03 71.23 78.8

All-Time 3641.44 -0.04 16704516.25 17070.67 15654.56 97.95 71.98 78.8

Last 10 July 18th's data records

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

Tue, Jul 18, 2017 3635.51 -0.05 15479114 12395 14493 100.0 75.0 80.0

Mon, Jul 18, 2016 3620.51 -0.14 13817338 9107 16271 93.0 77.0 76.0

Sat, Jul 18, 2015 3614.20 -0.05 13157713 14982 16883 88.0 64.9 77.0

Fri, Jul 18, 2014 3609.32 -0.07 12661974 10503 13457 n/a n/a 77.0

Thu, Jul 18, 2013 3596.62 -0.20 11430443 4776 14195 95.0 75.9 80.0

Wed, Jul 18, 2012 3630.63 -0.18 14923512 4714 14725 96.1 72.0 79.0

Mon, Jul 18, 2011 3659.17 0.29 18384170 64547 23560 97.0 73.4 78.0

Sun, Jul 18, 2010 3637.90 -0.06 15756488 9598 11869 105.1 75.9 82.0

Sat, Jul 18, 2009 3642.16 -0.06 16259560 15140 12747 107.1 75.0 78.0

Fri, Jul 18, 2008 3633.64 -0.03 15264503 17986 14725 100.0 71.1 79.0

Averages of List 3627.97 -0.06 14713481.50 16374.80 15292.50 97.92 73.36 78.6

Accessibility of Primitive Launches and Other Sites
As of Tuesday, July 17th, 2018 where elevation was 3606.65'

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 26.65 Above Open and Usable

Antelope Point 3592.00 3590.00 16.65 Above Open and Usable

Hite Marina 3650.00 3645.00 38.35 Below Unusable, go to main marinas

Farley Canyon 3653.00 3649.00 42.35 Below Unusable, go to main marinas

Copper Canyon 3663.00 3660.00 53.35 Below Unusable, go to main marinas

Bullfrog to Halls Creek Cut-Off 3670.00 3668.00 61.35 Below Unusable, use Main Channel

Piute Farms 3682.00 3680.00 73.35 Below Unusable, go to main marinas

Gunsite Pass Cut-Off 3685.00 3680.00 73.35 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