Lake Powell, Houseboating, Glen Canyon, Striped Bass

Lake Powell





Lake Powell

For April 12th, 2021
Snowpack is 69% of avg
TotalPrecip is 73.00% of avg

Lake Powell is currently 433.26 feet deep at the dam
Water Summary
Today is day 194 of 365 for the Water Year 2021. We are 53% through the Water Year.
Last Reading: 3565.26 on Apr 11, 2021
Powell was last within 2" of this elevation on Apr 10, 2021
There are currently 2,844,492,352,084 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 134.74 feet below Full Pool (Elevation 3,700)

By content, Lake Powell is 35.89% of Full Pool (24,322,000 af)
Total inflows for water year 2021: 1,642,398 acre feet

This is 46.34% of the April 11th average of 3,544,610 acre feet
Total releases for water year 2021: 4,400,125 acre feet

This is 58.67% of the minimum required of 7,500,000 acre feet
During WY 2021, water storage has fallen by 2,627,122 AF and total outflows have exceeded total inflows by 2,757,727 AF
The 28 tracked reservoirs above Lake Powell are currently at 70.47% of capacity. Click for Details
Inflows for WY 2021 are 58.32% of WY 2020         Rivers feeding Lake Powell are running at 33.16% of the Apr 12th avg. Click for Details

Lake Powell is down -34.81 feet from one year ago.    Lake Powell is at low for water year and down 30.57 feet from the high.

View Acre Feet     Last 14 Measurements
Lake Powell is down -1.87 feet over these measurements

DATE MEASURED ELEVATION CHANGE CONTENT INFLOW (cfs) OUTFLOW (cfs) HIGH TEMP LOW TEMP WATER TEMP
Sun, Apr 11, 2021
3565.26
-0.06
8729415
7827
10100
79.0
51.0
n/a
Sat, Apr 10, 2021
3565.32
-0.13
8734127
5543
10813
78.0
49.0
n/a
Fri, Apr 09, 2021
3565.45
-0.17
8744344
4199
11187
76.0
54.0
55.0
Thu, Apr 08, 2021
3565.62
-0.11
8757716
6268
10690
79.0
50.0
55.0
Wed, Apr 07, 2021
3565.73
-0.14
8766377
4696
10408
77.0
45.0
55.0
Tue, Apr 06, 2021
3565.87
-0.13
8777407
5776
11063
70.0
53.0
55.0
Mon, Apr 05, 2021
3566.00
-0.15
8787658
4838
10989
86.0
60.0
54.0
Sun, Apr 04, 2021
3566.15
-0.15
8799497
3468
9625
86.0
57.0
54.0
Sat, Apr 03, 2021
3566.30
-0.15
8811346
4085
10247
84.0
52.0
53.0
Fri, Apr 02, 2021
3566.45
-0.15
8823206
993
7161
79.0
51.0
52.0
Thu, Apr 01, 2021
3566.60
-0.11
8835078
6684
11132
67.0
36.0
51.0
Wed, Mar 31, 2021
3566.71
-0.18
8843790
4793
12383
60.0
36.0
50.0
Tue, Mar 30, 2021
3566.89
-0.24
8858059
3468
13661
60.0
42.0
49.0
Mon, Mar 29, 2021
3567.13
-0.11
8877110
8596
13175
76.0
45.0
49.0
Averages of List
3566.11
-0.14
8796081
5088
10902
75.5
48.6
52.7

Averages for April 12th

AVERAGE TYPE ELEVATION CHANGE CONTENT INFLOW (cfs) OUTFLOW (cfs) HIGH TEMP LOW TEMP WATER TEMP
Since Filled
3632.90
0.01
15628086
12643
12676
71.4
44.9
55.0
All-Time
3618.49
-0.01
14464432
12257
12524
71.3
44.4
55.0

Last 10 April 12th's data records

DATE MEASURED ELEVATION CHG vs TODAY CONTENT INFLOW (cfs) OUTFLOW (cfs) HIGH TEMP LOW TEMP WATER TEMP
Sun, Apr 12, 2020
3600.15
34.89
11764389
13699
9157
69.0
54.0
55.0
Fri, Apr 12, 2019
3568.58
3.32
8992798
13634
12460
62.0
40.0
55.0
Thu, Apr 12, 2018
3611.05
45.79
12836281
5338
12089
73.0
44.0
54.0
Wed, Apr 12, 2017
3598.74
33.48
11630273
22993
10751
75.0
48.0
54.0
Tue, Apr 12, 2016
3591.20
25.94
10929487
9431
11551
73.9
46.9
58.0
Sun, Apr 12, 2015
3590.90
25.64
10902176
9998
9144
75.0
50.0
56.0
Sat, Apr 12, 2014
3574.21
8.95
9451641
6338
7827
75.9
61.0
54.0
Fri, Apr 12, 2013
3597.83
32.57
11544229
5908
9641
70.0
45.0
53.0
Thu, Apr 12, 2012
3635.81
70.55
15513740
8150
10801
64.0
50.0
54.0
Tue, Apr 12, 2011
3609.76
44.50
12706157
13598
15438
71.1
46.0
51.0
Averages of List
3597.82
0.00
11627117
10909
10886
70.9
48.5
54.4


Accessibility of Primitive Launches and Other Sites
As of Sunday, April 11th, 2021 where elevation was 3565.26'

SITE/LAUNCH NAME MINIMUM SAFE
ELEVATION
ABSOLUTE MINIMUM
USABLE ELEVATION
CURRENT LEVEL VS.
ABSOLUTE MINIMUM
CURRENT ACCESSIBILITY
Halls Crossing Launch
3550.00
3548.00
17.26 Above
Open and Usable
Wahweap
3558.00
3556.00
9.26 Above
Open and Usable
Bullfrog (Main Launch)
3578.00
3576.00
10.74 Below
Unusable, go to main marinas
Castle Rock Cut-Off
3583.00
3580.00
14.74 Below
Unusable, use Main Channel
Antelope Point
3588.00
3587.00
21.74 Below
Unusable, go to main marinas
Dominguez Butte Cut-Off
3602.00
3600.00
34.74 Below
Unusable, go to main marinas
Gunsight to Padre Bay Cut-Off
3613.00
3609.00
43.74 Below
Unusable, go to main marinas
Hite Marina
3650.00
3645.00
79.74 Below
Unusable, go to main marinas
Farley Canyon
3653.00
3649.00
83.74 Below
Unusable, go to main marinas
Copper Canyon
3663.00
3660.00
94.74 Below
Unusable, go to main marinas
Bullfrog to Halls Creek Cut-Off
3670.00
3668.00
102.74 Below
Unusable, use Main Channel
Piute Farms
3682.00
3680.00
114.74 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 1.072 seconds to create!
Copyright Summit Technologies, Inc.
Water data courtesy of US Bureau of Reclamation
The water year runs from Oct 1 - Sept 30
Since Filled is from 06/22/1980 forward
*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 - 2021



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Lake Powell, Houseboating, Glen Canyon, Striped Bass