Lake Powell Water Database

Lake Powell, Houseboating, Glen Canyon, Striped Bass

Lake Powell

Lake Powell

For September 20th, 2018
Snowpack is 59% of avg
TotalPrecip is 66.00% of avg

Lake Powell is currently 462.46 feet deep at the dam

Water Summary Today is day 355 of 365 for the Water Year 2018. We are 97% through the Water Year.
Last Reading: 3594.46 on Sep 17, 2018
Powell was last within 2" of this elevation on Mar 22, 2017 There are currently 3,659,014,697,018 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 105.54 feet below Full Pool (Elevation 3,700) By content, Lake Powell is 46.17% of Full Pool (24,322,000 af)	Total inflows for water year 2018: 5,289,114 acre feet This is 50.55% of the September 17th average of 10,463,114 acre feet	Total releases for water year 2018: 8,695,452 acre feet This is 105.66% of the minimum required of 8,230,000 acre feet
During WY 2018, water storage has fallen by 3,446,448 AF and total outflows have exceeded total inflows by 3,406,338 AF
The 28 tracked reservoirs above Lake Powell are currently at 69.95% of capacity. Click for Details
Inflows for WY 2018 are 46.97% of WY 2017 Rivers feeding Lake Powell are running at 56.06% of the Sep 20th avg. Click for Details

View Acre Feet Last 14 Measurements
Powell is down -2.11 feet over these measurements

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

Mon, Sep 17, 2018 3594.46 -0.16 11229089 4523 11851 n/a n/a n/a

Sun, Sep 16, 2018 3594.62 -0.48 11243926 3660 9982 n/a n/a n/a

Sat, Sep 15, 2018 3594.76 0.14 11256919 3353 11198 n/a n/a n/a

Fri, Sep 14, 2018 3594.93 0.31 11272709 3866 11718 n/a n/a n/a

Thu, Sep 13, 2018 3595.10 -0.17 11288513 3918 11776 n/a n/a n/a

Wed, Sep 12, 2018 3595.27 -0.19 11304331 2838 11719 n/a n/a n/a

Tue, Sep 11, 2018 3595.46 -0.16 11322027 4415 11779 n/a n/a n/a

Mon, Sep 10, 2018 3595.62 -0.17 11336942 3836 11715 0.0 0.0 76.0

Sun, Sep 09, 2018 3595.79 -0.45 11352803 4662 10004 0.0 0.0 77.0

Sat, Sep 08, 2018 3595.91 0.12 11364007 2653 11053 0.0 0.0 76.0

Fri, Sep 07, 2018 3596.09 0.30 11380827 4849 11727 0.0 0.0 76.0

Thu, Sep 06, 2018 3596.24 -0.13 11394855 5855 11720 0.0 0.0 76.0

Wed, Sep 05, 2018 3596.37 -0.20 11407022 2162 11602 0.0 0.0 76.0

Tue, Sep 04, 2018 3596.57 -0.12 11425756 6403 11766 0.0 0.0 76.0

Averages of List 3596.08 -0.09 11380316.00 4345.71 11369.57 0.00 0.00 76.1

Averages for September 20th

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

Since Filled 3649.66 -0.09 17618372.21 9367.68 13394.63 85.90 59.54 73.6

All-Time 3635.18 -0.10 15942487.56 9128.80 12759.02 85.21 58.65 73.6

Last 10 September 20th's data records

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

Wed, Sep 20, 2017 3629.08 -0.10 14750062 6485 11604 88.0 61.0 76.0

Tue, Sep 20, 2016 3611.26 -0.10 12857547 7439 12115 78.0 60.0 73.0

Sun, Sep 20, 2015 3607.09 -0.06 12439617 8469 10889 89.1 61.0 77.0

Sat, Sep 20, 2014 3605.59 -0.14 12291524 2940 9629 91.9 69.1 77.0

Fri, Sep 20, 2013 3591.20 0.01 10929487 11922 10691 87.1 61.0 67.0

Thu, Sep 20, 2012 3622.27 -0.06 14005256 5435 8035 90.0 63.0 74.0

Tue, Sep 20, 2011 3653.85 -0.05 17699712 14682 15358 90.0 63.0 74.0

Mon, Sep 20, 2010 3633.76 -0.04 15278211 6874 8148 93.9 70.0 72.0

Sun, Sep 20, 2009 3636.00 -0.07 15535699 8541 10034 91.0 64.0 76.0

Sat, Sep 20, 2008 3627.81 -0.11 14609030 9260 12173 87.1 63.0 75.0

Averages of List 3621.79 -0.07 14039614.50 8204.70 10867.60 88.61 63.51 74.1

Accessibility of Primitive Launches and Other Sites
As of Monday, September 17th, 2018 where elevation was 3594.46'

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 14.46 Above Open and Usable

Antelope Point 3592.00 3590.00 4.46 Above Open and Usable

Hite Marina 3650.00 3645.00 50.54 Below Unusable, go to main marinas

Farley Canyon 3653.00 3649.00 54.54 Below Unusable, go to main marinas

Copper Canyon 3663.00 3660.00 65.54 Below Unusable, go to main marinas

Bullfrog to Halls Creek Cut-Off 3670.00 3668.00 73.54 Below Unusable, use Main Channel

Piute Farms 3682.00 3680.00 85.54 Below Unusable, go to main marinas

Gunsite Pass Cut-Off 3685.00 3680.00 85.54 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