Lake Powell, Houseboating, Glen Canyon, Striped Bass



Lake Powell

Lake Powell

For April 21st, 2019
Snowpack is 135% of avg
TotalPrecip is 118.00% of avg

Lake Powell is currently 436.79 feet deep at the dam
Water Summary
Today is day 203 of 365 for the Water Year 2019. We are 56% through the Water Year.
Last Reading: 3568.79 on Apr 20, 2019
Powell was last within 2" of this elevation on Apr 16, 2019
There are currently 2,935,803,091,221 gallons of water in Lake Powell!
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Printable Version
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 131.21 feet below Full Pool (Elevation 3,700)

By content, Lake Powell is 37.04% of Full Pool (24,322,000 af)
Total inflows for water year 2019: 2,745,565 acre feet

This is 71.6% of the April 20th average of 3,834,663 acre feet
Total releases for water year 2019: 4,827,224 acre feet

This is 64.36% of the minimum required of 7,500,000 acre feet
During WY 2019, water storage has fallen by 2,006,624 AF and total outflows have exceeded total inflows by 2,081,659 AF
The 28 tracked reservoirs above Lake Powell are currently at 69.1% of capacity. Click for Details
Inflows for WY 2019 are 94.17% of WY 2018         Rivers feeding Lake Powell are running at 85.82% of the Apr 21st avg. Click for Details


Powell is down -41.57 feet from one year ago


View Acre Feet     Last 14 Measurements
Powell is up 0.02 feet over these measurements

DATE MEASURED ELEVATION CHANGE CONTENT INFLOW (cfs) OUTFLOW (cfs) HIGH TEMP LOW TEMP WATER TEMP
Sat, Apr 20, 2019
3568.79
0.03
9009637
13575
11963
n/a
n/a
n/a
Fri, Apr 19, 2019
3568.76
-0.01
9007231
12473
12608
n/a
n/a
n/a
Thu, Apr 18, 2019
3568.77
0.01
9008033
12630
11891
n/a
n/a
n/a
Wed, Apr 17, 2019
3568.76
0.01
9007231
11836
11096
0.0
0.0
55.0
Tue, Apr 16, 2019
3568.75
0.04
9006428
14286
12237
0.0
0.0
55.0
Mon, Apr 15, 2019
3568.71
0.00
9003220
12880
12578
0.0
0.0
55.0
Sun, Apr 14, 2019
3568.71
0.05
9003220
13852
11367
0.0
0.0
55.0
Sat, Apr 13, 2019
3568.66
0.08
8999211
15680
11887
0.0
0.0
55.0
Fri, Apr 12, 2019
3568.58
0.02
8992798
13634
12460
0.0
0.0
55.0
Thu, Apr 11, 2019
3568.56
0.05
8991196
14723
12240
0.0
0.0
55.0
Wed, Apr 10, 2019
3568.51
-0.13
8987190
6412
11782
0.0
0.0
54.0
Tue, Apr 09, 2019
3568.64
-0.06
8997607
9961
12279
0.0
0.0
55.0
Mon, Apr 08, 2019
3568.70
-0.07
9002418
9744
12500
0.0
0.0
56.0
Sun, Apr 07, 2019
3568.77
-0.07
9008033
8171
10927
0.0
0.0
55.0
Averages of List
3568.67
-0.01
8999868.36
11925.36
11941.18
0.00
0.00
55.0

Averages for April 21st

AVERAGE TYPE ELEVATION CHANGE CONTENT INFLOW (cfs) OUTFLOW (cfs) HIGH TEMP LOW TEMP WATER TEMP
Since Filled
3635.88
0.07
15952228.11
15983.55
12594.47
74.45
47.03
55.9
All-Time
3619.98
0.06
14649555.29
15544.77
12449.11
73.73
46.30
55.9

Last 10 April 21st's data records

DATE MEASURED ELEVATION CHANGE CONTENT INFLOW (cfs) OUTFLOW (cfs) HIGH TEMP LOW TEMP WATER TEMP
Sat, Apr 21, 2018
3610.26
-0.10
12756489
6561
11637
73.0
41.0
54.0
Fri, Apr 21, 2017
3601.21
0.34
11865879
29072
10925
71.0
51.0
58.0
Thu, Apr 21, 2016
3591.52
0.08
10958667
15858
11522
82.9
55.0
59.0
Tue, Apr 21, 2015
3590.48
-0.05
10864014
8193
10306
79.0
51.0
58.0
Mon, Apr 21, 2014
3575.05
0.12
9521417
14623
8866
84.9
55.9
58.0
Sun, Apr 21, 2013
3597.24
-0.02
11488658
7303
7951
79.0
46.9
54.0
Sat, Apr 21, 2012
3635.93
0.00
15527606
10008
9513
84.9
55.9
57.0
Thu, Apr 21, 2011
3610.12
0.07
12742383
17604
15473
78.1
53.1
54.0
Wed, Apr 21, 2010
3619.05
0.09
13662840
17003
10301
70.0
43.0
60.0
Tue, Apr 21, 2009
3609.83
0.04
12713196
11819
10320
84.0
53.1
55.0
Averages of List
3604.07
0.06
12210114.90
13804.40
10681.40
78.68
50.59
56.7


Accessibility of Primitive Launches and Other Sites
As of Saturday, April 20th, 2019 where elevation was 3568.79'

SITE/LAUNCH NAME MINIMUM SAFE
ELEVATION
ABSOLUTE MINIMUM
USABLE ELEVATION
CURRENT LEVEL VS.
ABSOLUTE MINIMUM
CURRENT ACCESSIBILITY
Halls Crossing Launch
3550.00
3548.00
20.79 Above
Open and Usable
Wahweap
3558.00
3556.00
12.79 Above
Open and Usable
Bullfrog Launch
3570.00
3568.00
0.79 Above
Looking bad, not likely. Go very slow!
Castle Rock Cut-Off
3583.00
3580.00
11.21 Below
Unusable, use Main Channel
Antelope Point
3588.00
3587.00
18.21 Below
Unusable, go to main marinas
Hite Marina
3650.00
3645.00
76.21 Below
Unusable, go to main marinas
Farley Canyon
3653.00
3649.00
80.21 Below
Unusable, go to main marinas
Copper Canyon
3663.00
3660.00
91.21 Below
Unusable, go to main marinas
Bullfrog to Halls Creek Cut-Off
3670.00
3668.00
99.21 Below
Unusable, use Main Channel
Gunsite Pass Cut-Off
3685.00
3680.00
111.21 Below
Unusable, use Main Channel
Piute Farms
3682.00
3680.00
111.21 Below
Unusable, go to main marinas
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



Page took 0.386 seconds to create!
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 - 2019



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Lake Powell, Houseboating, Glen Canyon, Striped Bass