Lake Powell, Houseboating, Glen Canyon, Striped Bass



Lake Powell

Lake Powell

For July 22nd, 2018
Snowpack is 49% of avg
TotalPrecip is 71.00% of avg

Lake Powell is currently 473.9 feet deep at the dam
Water Summary
Today is day 296 of 365 for the Water Year 2018. We are 81% through the Water Year.
Last Reading: 3605.90 on Jul 21, 2018
Powell was last within 2" of this elevation on Nov 30, 2016
There are currently 4,015,151,735,384 gallons of water in Lake Powell!
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Gas Prices on Lake
Detailed Map of Powell
15 Day Weather Forecast
SW Satellite Weather
SW Water Vapor


Elevation & Content Water Inflow Data Glen Canyon Dam Release Data
Lake Powell is 94.1 feet below Full Pool (Elevation 3,700)

By content, Lake Powell is 50.66% of Full Pool (24,322,000 af)
Total inflows for water year 2018: 4,833,430 acre feet

This is 52.12% of the July 21st average of 9,274,342 acre feet
Total releases for water year 2018: 7,141,288 acre feet

This is 86.77% of the minimum required of 8,230,000 acre feet
During WY 2018, water storage has fallen by 2,353,505 AF and total outflows have exceeded total inflows by 2,307,858 AF
The 28 tracked reservoirs above Lake Powell are currently at 77.7% of capacity. Click for Details
Inflows for WY 2018 are 46.75% of WY 2017         Rivers feeding Lake Powell are running at 41.63% of the Jul 23rd avg. Click for Details


Powell is down -29.47 feet from one year ago


View Acre Feet     Last 14 Measurements
Powell is down -2.49 feet over these measurements

DATE MEASURED ELEVATION CHANGE CONTENT INFLOW (cfs) OUTFLOW (cfs) HIGH TEMP LOW TEMP WATER TEMP
Sat, Jul 21, 2018
3605.90
-0.11
12322032
6252
11304
n/a
n/a
n/a
Fri, Jul 20, 2018
3606.01
-0.20
12332870
5189
15077
n/a
n/a
n/a
Thu, Jul 19, 2018
3606.21
-0.22
12352592
4303
15277
n/a
n/a
n/a
Wed, Jul 18, 2018
3606.43
-0.22
12374310
4312
15298
n/a
n/a
n/a
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
Averages of List
3607.61
-0.19
12491296.44
4492.78
13985.33
0.00
0.00
78.5

Averages for July 23rd

AVERAGE TYPE ELEVATION CHANGE CONTENT INFLOW (cfs) OUTFLOW (cfs) HIGH TEMP LOW TEMP WATER TEMP
Since Filled
3656.09
-0.09
18436046.42
14091.74
16988.00
98.17
72.12
79.7
All-Time
3641.17
-0.06
16670044.91
14548.73
15459.16
97.98
71.48
79.7

Last 10 July 23rd's data records

DATE MEASURED ELEVATION CHANGE CONTENT INFLOW (cfs) OUTFLOW (cfs) HIGH TEMP LOW TEMP WATER TEMP
Sun, Jul 23, 2017
3635.11
-0.08
15433029
8593
12568
100.0
75.0
80.0
Sat, Jul 23, 2016
3619.60
-0.15
13720906
7503
15208
105.0
75.0
79.0
Thu, Jul 23, 2015
3613.83
-0.11
13119686
12229
17483
93.9
70.0
77.0
Wed, Jul 23, 2014
3608.97
-0.11
12626902
8329
13459
n/a
n/a
78.0
Tue, Jul 23, 2013
3595.77
-0.19
11350936
5214
14083
91.9
75.0
79.0
Mon, Jul 23, 2012
3629.78
-0.19
14828214
4228
14804
96.1
73.9
79.0
Sat, Jul 23, 2011
3660.30
0.20
18531898
45195
24119
99.0
72.0
78.0
Fri, Jul 23, 2010
3637.31
-0.08
15687693
7887
13459
97.0
72.0
83.0
Thu, Jul 23, 2009
3641.82
-0.09
16218987
12351
13533
100.9
73.0
79.0
Wed, Jul 23, 2008
3633.42
-0.09
15239394
14490
14640
99.0
75.0
81.0
Averages of List
3627.59
-0.09
14675764.50
12601.90
15335.60
98.09
73.43
79.3


Accessibility of Primitive Launches and Other Sites
As of Saturday, July 21st, 2018 where elevation was 3605.90'

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
25.9 Above
Open and Usable
Antelope Point
3592.00
3590.00
15.9 Above
Open and Usable
Hite Marina
3650.00
3645.00
39.1 Below
Unusable, go to main marinas
Farley Canyon
3653.00
3649.00
43.1 Below
Unusable, go to main marinas
Copper Canyon
3663.00
3660.00
54.1 Below
Unusable, go to main marinas
Bullfrog to Halls Creek Cut-Off
3670.00
3668.00
62.1 Below
Unusable, use Main Channel
Piute Farms
3682.00
3680.00
74.1 Below
Unusable, go to main marinas
Gunsite Pass Cut-Off
3685.00
3680.00
74.1 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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1999 - 2018



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Lake Powell, Houseboating, Glen Canyon, Striped Bass